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PN 9001111A

M84PRO

Thermal Transfer Printer

SERVICE MANUAL

SATO America, Inc.

10350A Nations Ford Road

Charlotte, NC 28273

Main Phone: (704)644-1650

Tech Support Hotline: (704)644-1660

Tech Support Fax: (707)644-1661

E-Mail: satosales@satoamerica.com

www.satoamerica.com

© Copyright 2003

SATO America, Inc.

All rights reserved. No part of this document may be reproduced or issued to third parties in any

form whatsoever without the express permission of SATO America, Inc. The materials in this

document is provided for general information and is subject to change without notice. SATO

America, Inc. assumes no responsibilities for any errors that may appear.

Preliminary 02/01/03

PN 9001111A

TABLE OF CONTENTS

INTRODUCTION

General Description 1-2

Theory Of Operation 1-2

Switches And Indicators 1-4

Connection Ports 1-4

TECHNICAL DATA

Physical Characteristics 2-1

Power 2-1

Enviromental 2-1

Print 2-1

Media 2-2

Ribbon 2-2

Sensing 2-2

Interface Modules 2-2

Processing 2-3

Character Font Capabilities 2-3

Bar Code Capabilities 2-4

Regulatory Approvals 2-4

INTERFACE SPECIFICATIONS

Interface Types 3-1

Receive Buffer 3-1

IEEE1284 Parallel Interface 3-3

RS232 Serial Interface 3-4

Universal Serial Bus (Usb) Adapter 3-6

Local Area Network (Lan) Interface 3-6

Bi-Directional Communications 3-6

ACCESSORIES INSTALLATION

Label Cutter 4-1

Dispenser 4-4

Flash Memory 4-7

PCMCIA Memory Expansion 4-8

Real-time Clock 4-10

Interface Module Upgrade 4-12

CONFIGURATION

Dip Switch Panels 5-1

RS232 Transmit/receive Setting 5-1

Printer Setup 5-3

Default Settings 5-7

Software Default Settings 5-7

Potentiometer Adjustments 5-8

LCD Panel Printer Configuration 5-9

TROUBLESHOOTING

Error Signals 6-1

Troubleshooting Table 6-2

Troubleshooting Procedures 6-4

PN: 9001111A

REPLACEMENT PROCEDURES

Main Circuit Board 7-1

Interface Board (Module) 7-3

Daughter Board 7-4

Memory Board (Card) 7-5

Power Board 7-5

Panel Board 7-6

LCD Board 7-7

Fuse 7-8

Motor 7-9

Platen Roller 7-11

Feed Roller 7-12

Timing Belt 7-14

Print Head 7-18

Label-out Sensor Switch 7-20

Label Position Sensor 7-22

Ribbon Sensor 7-23

Cutter Belt 7-25

Cutter Circuit Board 7-27

ADJUSTMENT PROCEDURES

Print Head Position Alignment 8-2

Print Head Balance 8-3

Ribbon Guide Plate 8-5

Feed Roller 8-6

Timing Belt 8-8

Pitch Sensor Setup For Notched Tags 8-9

Print Position 8-10

Label Gap Sensor 8-11

Eye-Mark Sensor 8-13

Offset Label Stop Position 8-14

LCD Display 8-14

Print Darkness 8-15

FACTORY RESETS

Factory Settings/Test Print 9-1

Clear Head Counters 9-2

Clear Dispenser Counter 9-3

Clear Cutter Counter 9-4

Clear EEPROM 9-5

DIAGRAMS & SCHEMATICS

Housing Cover Removal & Installation 10-1

Media Loading 10-2

Ribbon Loading 10-2

Paper Specifications 10-3

Accessories & Sensors Location 10-4

Print Position Reference 10-5

Print Operation Sequence 10-6

M84Pro Service Manual PN: 9001111A Page 1-1

1

INTRODUCTION

This manual is laid out consistent with the product discussed and provides all of the information

required for general printer configuration, troubleshooting, and maintenance. For specialized

programming, refer to the Programming Manual also provided with the product.

Step-by-step maintenance instructions are provided with typical problems and solutions. It is

recommended that you become familiar with each section before installing and maintaining the

printer.

This manual also incorporates the use of special information boxes. Examples of these boxes

and the type of information provided in each, are below.

A comprehensive Table Of Contents provided at the front of this manual facilitates rapid

movement within. The contents identify the different unit sections and their respective sub-

sections. Each references the page number of their commencement.

The pages of this manual have embedded headers and footer to assist the user in identifying his

or her exact position within the manual. The header provides the section number followed by its

name. The footer identifies the product on the left, the manual’s part number in the center, and

the page number to the right side of the page.

Page enumeration is two-part with each separated by a hyphen. The first character set

references the section number and the second identifies the page number. Page numbers begin

with the numeral (1) one at the commencement of a new section and ascends sequentially.

WARNING: PROVIDES INFORMATION THAT, IF UNHEEDED MAY

RESULT IN PRESONAL INJURY.

CAUTION: PROVIDES INFORMATION THAT, IF UNHEEDED MAY RESULT

IN EQUIPMENT DAMAGE.

NOTE: Provides helpful hints to assist in performing the tasks at hand.

LCD DISPLAY: Provides the specific display that should be visible on the

LCD at that point.

Section 1: Introduction

M84Pro Service Manual PN: 9001111A Page 1-2

GENERAL DESCRIPTION

The M84Pro printer was designed for continuous industrial and commercial applications as self-

evident with its uncompromising all-metal housing, 203 to 609 dpi resolution, and label width

capacity up to 5 inches wide.

This printer uses standard SATO programming language with specific values for print

resolutions. These values are specified in “dots” and will vary depending upon the printer

resolution and the amount of memory available for label imaging.

The M84Pro was designed to be compatible with preceding M-8400 series printers. The main

difference is how it receives the command sequence and how it responds to certain commands.

Refer to the Operator and Technical Reference Manuals for additional information.

Figure 1-1, Primary Components

THEORY OF OPERATION

When activated, the media and ribbon (where applicable) are fed in conjunction past the print

head by an integrated drive train. The drive train is electric, stepper motor driven, coupled to a

gear configuration located on the left side of the printer chassis. Paper guides within the chassis

assembly ensure that the media remains properly positioned during the printing process and is

fed unimpeded through the front cover. The exhausted ribbon material is rewound onto a take-up

core inserted onto drive-train driven spindles.

A series of strategically located sensors send signals to the processing unit. The processing unit

in turn sends response signals to the various features based on programmed and received data.

Correct signals initiate print head activity.

LEFT HOUSING COVER

FRONT HOUSING COVER

PANEL COVER

RIGHT HOUSING COVER

TOP HOUSING COVER

Section 1: Introduction

M84Pro Service Manual PN: 9001111A Page 1-3

Figure 1-2, Primary Components

Figure 1-3, Primary Components

LCD BOARD

IEEE1284 + RS BOARD

PANEL BOARD

BELT CONFIGURATION

DAUGHTER BOARD

INTERFACE BOARD

MAIN CIRCUIT BOARD

POWER BOARD

PRINT ASSEMBLY

STEPPER MOTOR

LABEL HOLD DOWN

LABEL ROLL HOLDER

RIBBON REWIND SPINDLE

RIBBON SUPPLY SPINDLE

PLATEN ROLLER

LOWER FEED ROLLER

LCD PANEL

OPERATOR

PANEL

Section 1: Introduction

M84Pro Service Manual PN: 9001111A Page 1-4

SWITCHES AND INDICATORS

The table below identifies and defines printer switches and indicators for operator interface. The

accompanying graphics display their locations and appearance.

CONNECTION PORTS

These ports are externally accessible and permit connection of the accessories and attachments

necessary for printer programming and operation. Not listed here, are the connection ports of

circuit boards not externally accessible.

SWITCHES

Power Switch Two position on/off switch that controls power flow to the system.

Line Key Toggles the printer between the on-line and off-line modes. When

on-line, the printer is ready to receive data from the host. Acts as a

pause during print by taking the printer off-line. Also used as a scroll-

and-enter interface for printer setup.

Feed Key Feeds one blank label through the printer when off-line. When the

printer is on-line, another copy of the last label will be printed. Also

used as a scroll-and-enter interface for printer setup.

INDICATORS

LCD Display Dual line x 16 character display. Used for setting operational param-

eters and displaying error conditions.

Power Indicator Illuminates when the power switch is activated.

Label Illuminates when the label supply is depleted.

Ribbon Illuminates when the ribbon supply is depleted.

Error Illuminates when there is a system fault.

On-Line Illuminates when the system is operating.

DIP SWITCHES

DSW2 & DSW3 Sets operational parameters of printer.

DSW1 Used to configure optional RS232 communication card.

CONNECTION PORTS

AC Power Input Connector permits 115V, 50/60 Hz supply via supplied cord.

Interface Port Connector for interface harness. Must be connected for the printer to

be operational. Acceptable interface types are:

• RS232C Serial I/F Module, DB-25

• IEEE1284 Parallel I/F Module, AMP 57-40360

• Universal Serial Bus Adapter

• Ethernet 10/100 BaseT I/F Module

• RS422/485 I/F Module, DB-9

Ext. Interface Port Connector for external control of print cycle. Also supplies power for

optional accessories - AMP 57-60140

Memory Card Slot Slot for the insertion of optional PCMCIA Memory Card

Main Fuse Connection For input power protection - type 3A/250V

Section 1: Introduction

M84Pro Service Manual PN: 9001111A Page 1-5

Figure 1-4, Switches, Indicators, and Connection Ports

LCD DISPLAY

POWER

LABEL

RIBBON

ERROR

ON LINE DISPLAY

PITCH

OFFSET

PRINT

LINE FEED

DSW1 DSW2 DSW3

INDICATORS

LINE KEY

POWER SWITCH

DIP SWITCHES

POTENTIOMETERS

FEED KEY

PANEL COVER REAR COVER

100V - 120V

FUSE T3.15A H 250V

EXT.

I/F

AC POWER INPUT

MAIN FUSE CONNECTI

O

EXT PORT

INTERFACE PORT

MEMORY CARD SLOT

M84Pro Service Manual PN: 9001111A Page 2-1

2

TECHNICAL DATA

All technical data deemed pertinent has been tabulated below for quick reference. Find the

relative section header and then locate the specific type of technical data in th left column.

PHYSICAL CHARACTERISTICS

Width 10.4 Inches (265 mm)

Height 13.4 Inches (341 mm)

Depth 17.1 Inches (435 mm)

Weight 39.7 Pounds (18.0 mm)

POWER

Input Voltage 115/220 Volts AC +/- 10%, 50/60 Hertz +/-1%

Power Consumption 130 Watt Operating, 24 Watt Idle

ENVIRONMENTAL

Operating Temperature 41° to 104°F (5° to 40°C)

Storage Temperature 23° to 140°F (-5° to 60°C)

Storage Humidity 30 to 90% RH Non-Condensing

Operating Humidity 30 to 80% RH Non-Condensing

Electrostatic Discharge 8kV

PRINT

Method Direct or Thermal Transfer

Speed (user selectable) M84PRO-2: 2 to 10 Inches Per Second (50 - 250 mm/s)

M84PRO-3: 2 to 8 Inches Per Second (50 - 200 mm/s)

M84PRO-6: 2 to 6 inches Per Second (50 - 150 mm/s)

Print Module (dot size) M84PRO-2: .0049 Inches (.125 mm)

M84PRO-3: .0033 Inches (.083 mm)

M84PRO-6: .0017 Inches (.081 mm)

Resolution M84PRO-2: 203 Dots Per Inch (8 d/mm)

M84PRO-3: 305 Dots Per Inch (12 d/mm

M84PRO-6: 609 Dots Per Inch (24 d/mm)

Maximum Print Width 4.1 Inches (104 mm)

Maximum Print Length M84PRO-2: 49.2 Inches (1249 mm)

M84PRO-3: 32.8 Inches (835 mm)

M84PRO-6: 14.0 Inches (356 mm)

Section 2: Technical Data

M84Pro Service Manual PN: 9001111A Page 2-2

MEDIA

Minimum Width .87 Inches (22 mm)

Minimum Length

Continuous

Tear-Off

Cutter

Dispense

0.24 Inches (6 mm)

0.63 Inches (16 mm)

1.18 Inches (30 mm)

1.18 Inches (30 mm)

Maximum Width 5.0 Inches (125 mm)

Type Die Cut Labels, Fan-Fold, Tag Stock or Continuous

Maximum Caliper .008 Inches (.21 mm)

Maximum Roll Diameter 8.6 Inches (220 mm), Wound face inward

Minimum Core Diameter 3 Inches (76.2 mm)

RIBBON

Maximum Width 4.4 Inches (111 mm)

Length 1475 Feet (450 m)

Thickness 4.5 Microns, Wound face inward

SENSING

See-Through for labels or tags Movable

Reflective Eye-Mark Movable

Continuous Form Sensor not used.

INTERFACE MODULES

Parallel Port IEEE 1284 Standard

Serial Port RS232C (9600 to 57,6000 dps) Standard

RS422/485 (9600 to 57600 bps) Optional

Ready/Busy or X-On/X-Off Flow Control

Bi-Directional Status

Universal Serial Bus USB Adapter

Ethernet 10/100 Base T, 802.116 Wireless Wi-Fi

Data Transmission ASCII Format

PROCESSING

CPU 32 Bit RISC

FLash ROM 2 Mega-Bytes

SDRAM 16 Mega-Bytes

Receive Buffer 2.95 Mega-Bytes

Memory Expansion See Options and Accessories

Section 2: Technical Data

M84Pro Service Manual PN 9001111A Page 2-3

CHARACTER FONT CAPABILITIES

MATRIX FONTS

U Font 5 dots W x 9 dots H

S Font 8 dots W x 15 dots H

M Font 13 dots W x 20 dots H

XU Font 5 dots W x 9 dots H (Helvetica)

XS Font 17 dots W x 17 dots H (Univers Condensed Bold)

XM Font 24 dots W x 24 dots H (Univers Condensed Bold)

OA Font (OCR-A) M84PRO-2: 15 dots W x 22 dots H

M84PRO-3: 22 dots W x 33 dots H

M84PRO-6: 44 dots W x 66 dots H

OB Font (OCR-B) M84PRO-2: 30 dots W x 36 dots H

M84PRO-3: 30 dots W x 36 dots H

M84PRO-6: 60 dots W x 72 dots H

AUTO SMOOTHING FONTS

WB 18 dots W x 30 dots H

WL 28 dots W x 52 dots H

XB 48 dots W x 48 dots H (Univers Condensed Bold)

XL 48 dots W x 48 dots H (Sans Serif)

VECTOR FONT

Proportional or Fixed Spacing

Font Size 50 x 50 dots to 999 x 999 dots

Helvetica, 10 Font Variations

AGFA RASTER FONTS

A Font CG Times, 8 to 72 pt.

B Font CG Triumvirate, 8 to 72 pt.

DOWNLAODABLE FONTS

Bit Mapped True Type Fonts with Utility Program

CHARACTER CONTROL

Expansion up to 12 x in either the X or Y coordinates.

Charcter Pitch Control

Line Space Control

Journal Print facility

0, 90, 180, and 270 Degree Rotation

Section 2: Technical Data

M84Pro Service Manual PN: 9001111A Page 2-4

BAR CODE CAPABILTIES

Linear Bar Codes Bookland (UPC/EAN Supplemental

EAN-8, EAN-13

CODABAR

Code 39

Code 93

Code 128

Interleaved 2 of 5

Industrial 2 of 5

Matrix 2 of 5

MSI

POSTNET

UCC/EAN-128

UPC-A and UPC-E

Two Dimemsional Data Matriix

Maxicode

PDF417

Micro PDF

Truncated PDF

QR Code

RSS-14 Composite Code

Ratios 1:2, 1:3, 2:5, User definable bar widths

Bar Height 4 to 999 dots, User progammable

Rotation 0, 90, 180, and 270 Degrees

Sequential Numbering Sequential numbering of both numerics and bar codes

Custom Characters RAM storage for special characters

Graphics Full dot addressable graphics, SATO Hex/Binary, .BMP or

.PCX formats

Form Overlay Form overlay for high-speed editing of complex formats

REGULATORY APPROVALS

Safety VCCI (Class B), UL, CUL, CE, FCC (Class B)

RFI/EMI FCC (Class B)

M84Pro Service Manual PN: 9001113A Page 3-1

3

INTERFACE SPECIFICATIONS

This section presents the interface specifications and include detailed information on how to

properly interface the printer with the host system.

INTERFACE TYPES

The parallel interface is a high speed, bi-directional interface that conforms to the IEEE1284

specification (ECP mode on some computers). The interface is also compatible with the older

Centronics parallel interface standard. If it does not detect the correct IEEE1284 signals in the

interface connection, it will automatically operate in the standard Centronics mode which is much

slower. To use the IEEE1284 parallel interface to its fullest capability requires that the host also

have an IEEE1284 compatible interface and that the two be connected with a cable that meets

the IEEE1284 specification. If either of these two are not present, the data rate is reduced.

In order to provide flexibility in communicating with a variety of host computer systems all printers

use a Plug-In Interface Module. The IEEE1284 Interface module is shipped with the printer

unless another interface type is specified at the time of the order. The other interfaces available

is a high speed serial interface, an Ethernet interface, wireless Ethernet, or an optional Universal

Serial Bus (USB) Adapter.

The Parallel interface will probably be the most useful in communicating with IBM PCs and

compatibles. The RS232C Serial interface allows connectivity to a number of other hosts. The

USB interface allows the printer to be connected to a computer that supports peripherals

attached to a USB bus. Up to 127 peripherals can be connected to a single USB port.

RECEIVE BUFFER

The printer may be configured to receive a data stream from a singular or multiple print jobs. The

single job print buffer is generally used by software programs that wish to maintain control of the

job print queue so that it can move a high priority job in front of ones of lesser importance. The

multiple job buffer, on the other hand prints all jobs in the order they are received by the printer,

and the order of printing cannot be changed.

SINGLE JOB BUFFER

The printer receives and prints one job at a time. Each job must not exceed 2.95 MB.

WARNING: NEVER CONNECT OR DISCONNECT INTERFACE CABLES

(OR USE A SWITCH BOX) WITH POWER APPLIED TO EITHER THE

HOST OR THE PRINTER. THIS MAY CAUSE DAMAGE TO THE

INTERFACE CIRCUITRY IN THE PRINTER/HOST AND IS NOT COVERED

BY WARRANTY.

Section 3: Interface Specifications

M84Pro Service Manual PN 9001113A Page 3-2

MULTIPLE JOB BUFFER

The printer is able to continuously receive print jobs while compiling and printing other jobs at the

same time. It acts much like a “print buffer” to maximize the performance of the host and the

printer. When using the RS232C Serial interface, the multiple job buffer uses either the Ready/

Busy with DTR (pin 20) or X-On/X-Off flow control protocols. See these sections for more details.

With an empty receiving buffer, the status of DTR is “high” (in X-On status if using X-On/X-Off)

meaning the printer is ready to receive data. When the receive buffer is holding 2.0 MB of data (1

MB from being full), DTR will go “low” (an X-Off is sent) indicating the printer can no longer

receive data. This condition is called “Buffer Near Full.”

The receiving buffer will not be able to receive more data again until a “Buffer Available” condition

occurs. This takes place when the receiving buffer has emptied so that only 1 MB bytes of data

are being held (2.0 MB bytes from being full). At this time, DTR will go “high” or an X-On is sent to

tell the host that it can again receive data.

All printer error conditions (i.e., label out, ribbon out) will cause the printer to go busy (DTR “low”

or X-Off) until the problem is corrected and the printer is placed on-line. The printer will also be

busy if taken off-line from the front panel.

Section 3: Interface Specifications

M84Pro Service Manual PN: 9001113A Page 3-3

IEEE1284 PARALLEL INTERFACE

The parallel interface for the M-84PRO printers is a Plug-In Interface Module that can be installed

by the user. It conforms to the IEEE1284 specification. It will automatically detect the IEEE1284

signals and operate in the high speed mode. If it does not detect the IEEE1284 signals, it will

operate in the standard Centronics mode, which is significantly slower. For this reason, an

interface cable and host interface conforming to the IEEE1284 specification must be present to

fully utilize the speed capabilities. This interface also operates bi-directionally and can report the

status of the printer back to the host.

SPECIFICATIONS

Printer Connector AMP 57-40360 DDK (or equivalent)

Cable Connector AMP 57-30360 DDK (or equivalent)

Cable IEEE1284 Parallel, 10 ft. (3 m) or less

Signal Level High = +2.4V to +5.0V, Low = 0V to -0.4V

Data Stream <ESC>A . . Job#1 . . <ESC>Z<ESC>A . . Job#n . . <ESC>Z

NOTE: Pin assignments begin with one (1) in the upper right corner and

descend to eighteen (18) in the upper left corner. Pin number nineteen (19)

picks up in the lower right corner and descends to thirty-six (36) in the lower

left.

IEEE 1284 PARALLEL INTERFACE PIN ASSIGNMENTS

PIN SIGNAL DIRECTION PIN SIGNAL DIRECTION

1 Strobe To Printer 19 Strobe Return Reference

2 Data 1 To Printer 20 Data 1 Return Reference

3 Data 2 To Printer 21 Data 2 Return Reference

4 Data 3 To Printer 22 Data 3 Return Reference

5 Data 4 To Printer 23 Data 4 Return Reference

6 Data 5 To Printer 24 Data 5 Return Reference

7 Data 6 To Printer 25 Data 6 Return Reference

8 Data 7 To Printer 26 Data 7 Return Reference

9 Data 8 To Printer 27 Data 8 Return Reference

10 ACK To Host 28 ACK Return Reference

11 Busy To Host 29 Busy Return Reference

12 Ptr Error To Host 30 PE Return Reference

13 Select To Host 31 INIT From Host

14 AutoFD1To Hos t 32 Fault To Host

15 Not Used 33 Not Used

16 Logic Gnd 34 Not Used

17 FG Frame Gnd 35 Not Used

18 +5V (z=24k ohm) To Host 36 SelectIn1From Host

1 Signals required for ieee 1284 mode.

Section 3: Interface Specifications

M84Pro Service Manual PN 9001113A Page 3-4

RS232 SERIAL INTERFACE

The High Speed Serial Interface is a Plug-In Interface Module that can be installed in the printer

by the user.

SPECIFICATIONS

Asynchronous ASCII Half-duplex communication

Ready/Busy Hardware Flow Control

Pin 20, DTR Control

Pin 4, RTS Error Condition

X-On/X-Off Software Flow Control

Bi-Directional Communication

Data Transmission Rate 9600, 19200, 38400, 57600 bps

Character Format 1 Start Bit (fixed)

7 or 8 data bits (selectable)

Odd, Even or No Parity (selectable)

1 or 2 Stop bits (selectable)

Connector DB-25S (Female)

Cable DB-25P (Male), 50 ft. maximum length.

For cable configuration, refer to Cable

Requirements appropriate to the RS232C protocol chosen.

Signal Levels High = +5V to +12V, Low = -5V to -12V

NOTE: Pin assignments begin with one (1) in the upper right corner and

descend to thirteen (13) in the upper left corner. Pin number fourteen (14)

picks up in the lower right corner and descends to twenty-five (25) in the

lower left.

RS232C SERIAL INTERFACE SIGNALS

PIN DIRECTION SIGNAL DEFINITION

1 Reference FG (Frame Ground)

2 To Host TD (Transmit Data) - Data from the printer to the host computer. Sends X-On/

X-Off characters or status data (bi-directional protocols).

3 To Printer RD (Receive Data) - Data to the printer from the host computer.

4 To Host RTS (Request to Send) - Used with Ready/Busy flow control to indicate an

error condition. RTS is high and remains high unless the print head is open (in

this case, RTS would return to the high state after the print head is closed and

the printer is placed back on-line) or an error condition occurs during printing

(e.g., ribbon out, label out).

5 To Printer CTS (Clear to Send) - When this line is high, the printer assumes that data is

ready to be transmitted. The printer will not receive data when this line is low. If

this line is not being used, it should be tied high (to pin 4).

6 To Printer DSR (Data Set Ready) - When this line is high, the printer will be ready to

receive data. This line must be high before data is transmitted. If this line is not

being used, it should be tied high (to pin 20).

7 Reference SG (Signal Ground)

Section 3: Interface Specifications

M84Pro Service Manual PN: 9001113A Page 3-5

READY/BUSY FLOW CONTROL

Ready/Busy is the hardware flow control method for the serial interface on the M-84PRO

printers. By raising/lowering the voltage level on Pin 20 of the RS232C port, the printer notifies

the host when it is ready to receive data. Pin 4 (RTS) and pin 20 (DTR) are the important signals

on the printer for this method of flow control. The host must be capable of supporting this flow

control method for it to function properly.

X-ON/X-OFF FLOW CONTROL

X-On/X-Off flow control is used whenever hardware (Ready/Busy) flow control is not available or

desirable. Instead of a voltage going high/low at pin 20, control characters representing ìPrinter

Readyî (X-On =11 hexadecimal) or “Printer Busy” (X-Off = 13 hexadecimal) are transmitted by

the printer on pin 2 (Transmit Data) to the host. In order for this method of flow control to function

correctly, the host must be capable of supporting it. X-On/X-Off operates in a manner similar to

the function of pin 20 (DTR) as previously explained. When the printer is first powered on it sends

an X-Off when the “Buffer Near Full” level is reached and a X-On when the data level of the buffer

drops below the “Buffer Available” mark. When the printer is taken off-line manually, it transmits

an X-Off indicating it cannot accept data. When it is placed back on line manually, it sends an X-

On, indicating it is again available for receipt of data. If an error occurs during printing (paper out,

ribbon out), the printer sends an X-Off as soon as an error condition is detected. When the error

is cleared and the printer is placed back on-line, it transmits an X-On indicating it is again ready

to accept data. Upon power up if no error conditions are present, the printer will continually send

X-On characters at five millisecond intervals until it receives a transmission from the host.

20 To Host DTR (Data Terminally Ready) - This signal applies to Ready/Busy flow control.

The printer is ready to receive data when this pin is high. It goes low when the

printer is off-line, either manually or due to an error condition, and while

printing in the single job buffer mode. It will also go low when the data in the

buffer reaches the buffer near full level.

CABLE REQUIREMENTS

DB9 DB25 HOST INTERCONNECTION DB25 PRINTER

1 1 FG <---------------- 1 FG (Frame Ground)

2 3 RD ----------------> 2 TD (Transmit Data)

3 2 TD <---------------> 3 RD (Receive Data)

8 5 CTS I--------

I--------

4 RTS (Request to Send)

7 4 RTS 5 CTS (Clear to Send)

4 20 DTR I--------

<-----------------

6 DSR (Data Set Ready)

6 6 DSR* 20 DTR (Data Terminal Ready)

5 7 SG <---------------> 7 SG (Signal Ground)

* This connection at the host side of the interface would depend upon the pin that is being used as the

Ready/Busy signal by the driving software. Typically, on a PC, it would be either CTS (pin5) or DSR (pin

6) on a DB-25 connector.

RS232C SERIAL INTERFACE SIGNALS

PIN DIRECTION SIGNAL DEFINITION

Section 3: Interface Specifications

M84Pro Service Manual PN 9001113A Page 3-6

DATA STREAMS

The data streams for X-On/X-Off and Ready/Busy flow control are constructed in the same way

as they are for Ready/Busy flow control (<ESC>A . . Job#1 . . <ESC>Z<ESC>A . . Job#n . .

<ESC>Z). An example of this would be: <ESC>A . . Job#1 . . <ESC>Z. All characters are in

ASCII.

UNIVERSAL SERIAL BUS (USB) ADAPTER

The Universal Serial Bus (USB) interface is a Plug-In Interface Module that can be installed by

the user. It requires a driver (shipped with each printer that has the interface installed) that must

be loaded on your PC and the PC must be configured to support USB peripherals using Windows

98 or above. Details for loading the USB driver are contained in the USB Interface Manual that is

shipped with each printer with a USB Optional interface installed. Up to 127 devices may be

connected to a USB port using powered hubs.

LOCAL AREA NETWORK (LAN) INTERFACE

A Local Area Network (LAN) interface is an optional Plug-In Interface Module that can be

installed by the user. It requires a driver shipped with each printer that has the interface installed.

The driver that must be loaded on your PC and the PC must be configured to run one of the

supported network protocols using a 10/100BaseT LAN connection. Details for loading the LAN

driver are contained in the LAN Interface Manual that is shipped with each printer with a LAN

Optional interface installed.

BI-DIRECTIONAL COMMUNICATIONS

This is a two-way communications protocol between the host computer and the printer, thus

enabling the host to check printer status. When Bi-Com 4 communications is selected, there is no

busy signal from the printer. The host must request the complete status from the printer, including

ready/busy. The host may request status in two different ways.

ENQUIRE/ACK/NAK

In the Bi-Com 4 mode, the host transmits an ENQ (05 hexadecimal) to the printer and the printer

will respond with its status within five milliseconds. If printing, it will respond upon finishing the

current label, then resume printing. In order for this protocol to work properly with an RS232C

SPECIFICATIONS

Printer Connector USB Type B Plug

Cable 10 feet (3 m) maximum

Host Windows 98 or above with USB Port

Power Supply BUS Power through cable

Power Consumption +5 V at 80 ma

SPECIFICATIONS

Connector RJ-45 Receptacle

Cable 10/100BaseT Category 5

Power Supply Powered from printer

Section 3: Interface Specifications

M84Pro Service Manual PN: 9001113A Page 3-7

Optional Interface, pin 6 (DTR) and pin 5 (CTS) must be held high by the host. One way to

ensure these pins are always in the correct state is to tie pin 20 (DTR) to pin 6 (DSR) and pin 4

(RTS) to pin 5 (CTS) at the printer end of the cable.

ENQUIRE (ENQ)

Upon receipt of an ENQ command, the printer responds with 25 bytes of status information

bounded by an STX/ETX pair. The Bi-Com protocol works only in the multiple job buffer mode.

The status information is defined as follows:

<STX>{ 2 Byte ID}{1 Status Byte}{6 Byte Label Remaining}{16 Byte Job Name}<ETX>

CANCEL (CAN)

If a CAN (18 hexadecimal) command is received, it will stop the print job and clear all data from

the receive and print buffers. A delay of five milliseconds or more is required before any new data

can be downloaded. The CAN command is effective immediately upon receipt, even if the printer

is off-line or in an error condition. The printer will return an ACK (06 hexadecimal) if there is no

printer error condition and a NAK (15 hexadecimal) if an error condition exists.

PRINT JOB

Upon receipt of a valid print job (<ESC>A . . . <ESC>Z), an ACK (06 hexadecimal) will be

returned by the printer if there are no errors and a NAK (16 hexadecimal) if a printer error exists.

STREAM IDENTIFICATION

ID Is a two byte number identifying the current print job ID. The

print job ID is defined using the <ESC>ID Job ID command

transmitted with the print job (see Job ID Store in the

command listing for more information on how to use this

command). The range is from 00 to 99.

Status A single byte defining the current status of the printer (see the

Status Byte Definition table).

Label Remaining Six bytes defining the number of labels remaining in the current

print job. The range is from 000000 to 999999 labels.

Job Name 16 bytes of ASCII characters identifying the name assigned

to the job by the <ESC>WK Job Name command. If the Job

Name is less than 16 characters, the field will be padded

with leading zeroes.

If an ENQ is received after the print job specified in the ID

bytes has been completed, or there is no data in the buffer,

the printer will respond with two “space” characters (20

hexadecimal) for the ID number, six “zero” characters (30

hexadecimal) in the Remaining Labels bytes and the 16

byte Job Name.

Section 3: Interface Specifications

M84Pro Service Manual PN 9001113A Page 3-8

PRINT STOP (DLE)

If a DLE (10 hexadecimal) is received by the printer, the print process is stopped and an ACK (06

hexadecimal) is returned if there are no errors and a NAK (16 hexadecimal) if a printer error

exists.

PRINT START (DC1)

If the printer has been stopped by receipt of a DLE (10 hexadecimal) command, it can be

restarted by sending a DC1 (hexadecimal 11) command. Upon receipt of this command an ACK

(06 hexadecimal) is returned if there are no errors and a NAK (16 hexadecimal) if a printer error

exists.

Note: To provide compatibility with older SATO printers, the RS232C

interface can be configured to use an earlier Bi-Com 3 ENQ/ACK/NAK

protocol selected via DSW2-8 and DSW1-7/8 (on the RS232 Interface

module).The earlier protocol did not have provisions for the Job Name

and did not respond to the DLE or DCI commands. Also, there are

additional Response Codes in the Status Byte Definition. It is

recommended that you use the current protocol rather than the earlier

version unless it is necessary for compatibility with existing software.

M84Pro Service Manual PN: 9001111A Page 4-1

4

ACCESSORIES INSTALLATION

The following procedures provide in-depth instructions on the installation of all optional

accessories. Each accessory is a purchase option that may not apply to your setup. Refer to the

list below to determine if any are applicable and their installation is required. If not, disregard this

section of the manual and proceed to the next.

LABEL CUTTER INSTALLATION

This procedure only covers the physical installation of cutter assembly hardware. Refer to other

procedures for configuration, etc.

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

3 Remove the ribbon and label stock if applicable and leave the print head open.

4 Remove screw (1, Figure 4-1a) securing front cover (2) to the printer frame. Lift away front

cover (2).

5 Remove two screws (3) to detach spacer panel (4). Lift away spacer panel (4).

6 Remove four screws (5) from back panel (6) and two screws (7) from side frame bracket (8)

to release the entire print mechanism.

Label Cutter Kit Label dispenser PCMCIA Memory Expansion

Flash Memory Expansion Real Time Clock Interface Module Upgrade

NOTE: Additional relative information may also be found in Figure 10-5,

Accessories & Sensors Location; Figure 10-6, Print Position Reference

Diagram; and Figures 10-12 through 10-15, Operation & Timing Charts of the

Diagrams & Schematics section.

NOTE: Figures 10-1, 10-2, and 10-3 in the Diagrams & Schematics section

provide guidance on housing cover, media, and ribbon removal respectively.

NOTE: The screw is accessible at the rear of the cover on the right side.

Manipulate the cover upward and outward to remove.

NOTE: The print mechanism will be all that is stainless steel or aluminum.

The print mechanism back plate is vertically arranged and reaches from the

very top down to the base.

Section 4: Accessories Installation

M84Pro Service Manual PN 9001111A Page 4-2

Figure 4-1a, Label Cutter Installation

7 Slide entire print mechanism fully toward the rear.

8 Reapply two screws (7) to side frame bracket (8) and four screws (5) to back panel (6) to

secure print mechanism.

9 Attach two hinge halves (9, Figure 4-1b) to the front base of the printer using two screws

(10) for each.

10 Install spacer panel (4) into the void left in front of print mechanism and secure using two

screws (3).

CAUTION: ENSURE WIRING HARNESSES ARE NOT PINCHED WHEN

ADJUSTING THE PRINT MECHANISM. THE PRINT MECHANISM WHEN

ADJUSTED, WILL COVER THE VOID LEFT BY THE REMOVAL OF THE

SPACER PANEL.

NOTE: Before tightening the hinge screws, pull the hinges forward to align

them.

4

5

6

5

2

7

175

3

Section 4: Accessories Installation

M84Pro Service Manual PN: 9001111A Page 4-3

11 Route the single connector end of cutter wiring harness (11, Figure 4-1c) through the printer

side wall from the electric side to the mechanical side.

Figure 4-1b, Label Cutter Installation

12 Connect wiring harness (11) to cutter assembly (12), main circuit board board (13), and

power board (14).

13 Attach cutter assembly (11) to the printer base by connecting their respective hinge halves.

14 Remove two screws (15) securing cable shield (16).

15 Encase cutter wiring harness (11) with the power cable in cable shield (16) and secure

using two screws (15).

CAUTION: WHEN ROUTING THE WIRING HARNESS, ENSURE THAT IS

IS ROUTED IN A MANNER SO AS TO PREVENT PINCHING OR

INTANGLEMENTS.

NOTE: There is one small connector on the wiring harness that will remain

unconnected for cutter installation. Ensure the connectors are properly

oriented when mating. Equipment damage may occur otherwise.

10

5

3

9

7

7

5

5

1

5

4

Section 4: Accessories Installation

M84Pro Service Manual PN 9001111A Page 4-4

16 Place DSW3-1 in the up position and the DSW3-2 in the down position.

17 Load the printer with ribbon and media stock and close/install all housing covers.

18 Restore power and test cycle.

Figure 4-1c, Label Cutter Installation

DISPENSER INSTALLATION

Installation of the optional label dispenser into the printer adds the convenience of automatic

label dispensing. Each label is printed, then peeled from the backing paper and presented at the

front of the printer for removal by the operator. A photo-electric sensor detects the presence of a

completed label and signals the printer to automatically backfeed the label stock for correct

alignment of the next print cycle.

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

NOTE: Refer to Figures 10-1, 10-2, and 10-3 in the Diagrams & Schematics

section for housing cover, media, and ribbon installation respectively.

NOTE: Refer to Figure 10-5, Accessories & Sensors Location in the

Diagrams & Schematics section if assistance is needed.

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

PANEL BOARD

LCD

BELT CONFIGURATION

15

16

12

13

11

14

Section 4: Accessories Installation

M84Pro Service Manual PN: 9001111A Page 4-5

3 Remove the ribbon and label stock if applicable and leave the print head open.

4 Remove screw (1, Figure 4-2a) securing front cover (2) to the printer frame. Lift away front

cover (2).

Figure 4-2a, Dispenser Installation

5 Route dispenser wiring harness (3) through the slot in the printer side wall.

NOTE: Figures 10-1, 10-2, and 10-3 in the Diagrams & Schematics section

provide guidance on housing cover, media, and ribbon removal respectively.

NOTE: The screws are accessible at the rear of the cover on the right side.

Manipulate the cover upward and outward to remove.

CAUTION: WHEN ROUTING THE WIRING HARNESS, ENSURE THAT IIS

ROUTED IN A MANNER SO AS TO PREVENT PINCHING OR

INTANGLEMENTS.

1

2

Section 4: Accessories Installation

M84Pro Service Manual PN 9001111A Page 4-6

Figure 4-2b, Dispenser Installation

6 Insert dispenser (4, Figure 4-2b) in place of removed front cover (2) and secure using

screw (1).

7 Connect dispenser wiring harness (3, Figure 4-2c) with free end of wiring harness con-

nected to CN10 port (5) of main circuit board.

8 Remove two screws (6) securing cable shield (7).

9 Encase cutter wiring harness (3) along with the power cable, in cable shield (7) and secure

using two screws (6).

10 Place the DSW3-1 and the DSW3-2 dip switches in the up position.

11 Load the printer with ribbon and media stock and close/install all housing covers.

NOTE: Dispenser installation will only require a single screw. Discard the

remaining screw from front cover removal.

CAUTION: ENSURE THE CONNECTORS ARE PROPERLY ORIENTED

WHEN MATING. EQUIPMENT DAMAGE MAY OCCUR OTHERWISE.

4

1

3

Section 4: Accessories Installation

M84Pro Service Manual PN: 9001111A Page 4-7

12 Restore power and test cycle.

Figure 4-2c, Dispenser Installation

FLASH MEMORY INSTALLATION

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

3 Remove three screws (1, Figure 4-3) securing daughter board (2) to main circuit board (3).

4 Disconnect daughter board (2) from circuit board (3).

5 Insert flash card (4) into its reserved brackets on main circuit board (3).

NOTE: Figures 10-1, 10-2, and 10-3 in the Diagrams & Schematics section

provide guidance on housing cover, media, and ribbon installation.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover removal.

NOTE: The flash card will properly insert into the connector bracket in a

single orientation. Ensure that the contactor side is goes first then press

inward to index the notched areas.

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

PANEL BOARD

LCD

BELT CONFIGURATION

6

7

5

3

Section 4: Accessories Installation

M84Pro Service Manual PN 9001111A Page 4-8

Figure 4-3, Flash Card Installation

6 Apply and connect daughter board (2) to main circuit board (3) and secure using three

screws (1).

7 Ensure power supply wiring harness (5) is fully connected to daughter board (2).

8 Factory Reset as directed in the Factory Reset section of this manual.

9 Restore power, test cycle, and replace covers.

PCMCIA MEMORY EXPANSION INSTALLATION

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

3 Remove two screws (1, Figure 4-4a) securing interface board (2) to the rear printer hous-

ing.

4 Withdraw interface board (2) from printer.

5 Remove two screws (3) securing main circuit board (4) to the rear printer housing.

6 Remove three screws (5) securing main circuit board (4) to the printer frame.

7 Manipulate main circuit board (4) from printer.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover installation.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover removal.

IEEE1284 + RS BOARD

1

2

3

5

4

Section 4: Accessories Installation

M84Pro Service Manual PN: 9001111A Page 4-9

Figure 4-4a, Memory Expansion

8 Insert two long screws (6, Figure 4-4b) into main circuit board (4) from the front.

Figure 4-4b, Memory Expansion

NOTE: It is advised that all wiring harnesses remain connected during

expansion board instalation to prevent the possibility of incorrect connections.

IEEE1284 + RS BOARD

2

1

5

5

5

3

3

4

7

6

9

10 8

6

410

9

7

Section 4: Accessories Installation

M84Pro Service Manual PN 9001111A Page 4-10

9 Insert a standoff (7) onto each screw (6) from the back side of main circuit board (4).

10 Connect expansion board (8) to the back side of main circuit board (4).

11 Apply a nut (9) to the end of each screw (6). Tighten securely.

12 Apply a screw (10) into the lower left corner of expansion board (8). Tighten securely.

13 Apply a screw (10) into the front of main circuit board (4) to secure the upper left corner of

expansion board (8). Tighten securely.

14 Insert main circuit board (4, Figure 4-4a) into the printer and secure using three screws (5)

and two screws (3).

15 Insert interface board (2) into its respective slot to connect with main circuit board (4) and

secure using two screws (1).

16 Restore power, test cycle, and install housing covers.

REAL-TIME CLOCK INSTALLATION

The real time clock chip allows the date and time to be maintained in the local printer rather than

using the system clock. It consists of a special clock chip that replaces the EEPROM chip on the

main cicuit board.

1. Switch the printer off and disconnect the power supply cord.

2 Remove the left side housing cover to gain access to the main circuit board.

3 Locate and withdraw the EEPROM chip (1, Figure 4-5) from main circuit board (2).

4 Insert clock chip (3) into the vacant connection recepticle (4).

5 Connect the power supply cord.

6 Factory Reset as directed in the Factory Reset section of this manual.

7 Press and hold the LINE key while simultaneously switching the power on.

8 When the printer emits one long beep, release the LINE key.

9 Press the FEED key 11 times to display the prompt to set the calender.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover installation.

CAUTION: IF USING A TOOL TO REMOVE THE EEPROM CHIP, ENSURE

THAT IT IS NOT BEING INSERTED BETWEEN THE RECEPTACLE BOARD

AND THE CIRCUIT BOARD. DESTRUCTION IN THE CIRCUIT BOARD

WILL OCCUR. INSERT THE TOOL BETWEEN THE TWO PIECES OF

BLACK PHENOLIC MATERIAL TO PRY THE CHIP FREE.

LCD DISPLAY: INITIALING ROM V00.00.00.00

LCD DISPLAY: ADVANCED MODE

Section 4: Accessories Installation

M84Pro Service Manual PN: 9001111A Page 4-11

10 Press the LINE key to move the cursor under the yes option, then press FEED to select.

11 Enter all of the date data required for calender operation.

12 Verify proper operation and replace housing covers.

Figure 4-5, Real-Time Clock Installation

LCD DISPLAY: SET CALENDER

YES NO

LCD DISPLAY: CALENDER 00/00/00 00:00

NOTE: Press the LINE key to scroll through the numeral options and the

FEED key to move the cursor laterally for each date entry.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover installation.

IEEE1284 + RS BOARD

4

1,

2

3

Section 4: Accessories Installation

M84Pro Service Manual PN 9001111A Page 4-12

INTERFACE MODULE UPGRADE

The printer is typically ordered with a high-speed parallel interface card installed. However,

interface requirements sometimes change and an upgrade is desired. All of the interface cards

are installed within the same slot located in the rear of the printer with little or no difference in

installation methodology. Refer to the Interface Board procedure of the Replacement Procedures

section for specific directions for this upgrade.

M84Pro Service Manual PN: 9001111A Page 5-1

5

PRINTER CONFIGURATION

This section provides configuration instructions. Figures 10-7 through 10-19 in the Diagrams &

Schematics section provides diagrams and charts on print operation sequence.

DIP SWITCH PANELS

There are two DIP switches (DSW2 and DSW3) located on the front panel under a protective

cover. A third DIP switch is located on the RS232C Serial Adapter card and is used to set the

RS232C transmit/receive parameters. Each switch is an eight section on/off toggle type switch.

The ON position is always oriented upward and consequently, the off is always downward.

Switch settings are read by the printer electronics during the power up sequence and will not

become effective until the power is cycled.

RS232 TRANSMIT/RECEIVE SETTING

Data Bit Selection (DSW1-1): Sets the printer to receive either 7 or 8 data bits for each byte

transmitted.

Parity Selection (DSW1-2, DSW1-3): Selects the type of parity used for error detection.

DSW1-1 SETTING

Off 8 Data Bits

On 7 Data Bits

DSW1

ON

OFF

12345678

DSW1-1 DSW1-3 SETTING

Off Off No Parity

Off On Even

On Off Odd

On On Not Used

DSW1

ON

OFF

12345678

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-2

Stop Bit Selection (DSW1-4): Selects the number of stop bits to end each byte transmission.

Baud Rate Selection (DSW1-5, DSW1-6): Selects the data rate (bps) for the RS232 port.

Protocol Selection (DSW1-7, DSW1-8): Selects the flow control and status reporting protocols.

Refer to the Interface Specifications section in this manual for more information. (* Will select the

Status 2 protocol if DSW2-8 is ON).

DSW1-4 SETTING

Off 1 Stop Bit

On 2 Stop Bits

DSW1

ON

OFF

12345678

DSW1-5 DSW1-6 SETTING

Off Off 9600

Off On 19200

On Off 38400

On On 57600

DSW1

ON

OFF

12345678

DSW1-7 DSW1-8 SETTING

Off Off Rdy/Bsy

Off On Xon/Xoff

On Off Bi-Com 3

On On Bi-Com 4

DSW1

ON

OFF

12345678

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-3

PRINTER SET UP

Print Mode Selection (DSW2-1): Selects between direct thermal printing and thermal transfer

printing.

Sensor Type Selection (DSW2-2): Selects between the use of a transmissive label gap or a

reflective eye-mark sensor.

Head Check Selection (DSW2-3): When selected, the printer will check for head elements that

are electrically malfunctioning.

Hex Dump Selection (DSW2-4): Selects Hex Dump mode.

DSW2-1 SETTING

Off Therm Xfr

On Direct Therm

DSW2

ON

OFF

12345678

DSW2-2 SETTING

Off Gap

On Eye-Mark

DSW2

ON

OFF

12345678

DSW2-3 SETTING

Off Disabled

On Enabled

DSW2

ON

OFF

12345678

DSW2-4 SETTING

Off Disabled

On Enabled

DSW2

ON

OFF

12345678

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-4

Receive Buffer Selection(DSW2-5): Selects the operating mode of the receive buffer. Refer to

the Interface Specifications section of this manual for more information.

If a 10/100BaseT LAN card is installed, DS2-5 has the following definitions:

Firmware Download (DSW2-6): Places the printer in the Firmware Download mode for

downloading new firmware into flash ROM.

Protocol Code Selection (DSW2-7): Selects the command codes used for protocol control.

Refer to the Selecting Protocol Control Codes section of the Technical Reference manual for

additional information.

.

DSW2-5 SETTING

Off Single Job

On Multi Job

DSW2

ON

OFF

12345678

DSW2-5 SETTING

Off ENQ Response

On Periodic Response

DSW2-6 SETTING

Off Disabled

On Enabled

DSW2

ON

OFF

12345678

DSW2-7 SETTING

Off Standard

On Non-Std

DSW2

ON

OFF

12345678

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-5

Status Select(DSW2-8): For emulating earlier series software commands. Should be used only

if problems are encountered when using existing software. This switch will also affect the settings

selected by DSW1-7 and DSW1-8.

Backfeed Sequence (DSW3-1, DSW3-2): Backfeed is used to correctly position the label for

application and then retract the next label to the proper print position. This operation can be

performed immediately after a label is printed and used, or immediately prior to the printing of the

next label.

Label Sensor Selection (DSW3-3): Enables or disables the Label Sensor. If the Sensor is

enabled, it will detect the edge of the label and position it automatically. If it is disabled, the

positioning must be under software control using Line Feed commands.

DSW2-8 SETTING

Off Status 3 & 4 Enabled

On Status 2 & 3 Enabled

DSW2

ON

OFF

12345678

DSW3-1 SETTING

Off Off Continuous

Off On Tear-Off

On Off Cutter*

On On Dispenser

* Defaults to Continuous if cutter not

installed

DSW3

ON

OFF

12345678

DSW3-3 SETTING

Off Sensor Used

On Not Used

DSW3

ON

OFF

12345678

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-6

Back-Feed Selection (DSW3-4): When Back-Feed is enabled, the printer will position the last

printed label for dispensing and retract it before printing the next label. The amount of backfeed

offset is adjustable.

External Signal Interface: Refer to the Interface Specifications section for information on

External Signals.

EXT Print Start Signal Selection (DSW3-5): Allows an external device to initiate a label print for

synchronization with the applicator or other external device. When DSW3-5 is On, the unit is in

the Continuous print mode, Backfeed is disabled and External Signals are ignored.

External Signal Type Selection (DSW3-6, DSW3-7): Both the polarity and signal type (level or

pulse) of the external print synchronizing signal can be selected.

DSW3-4 SETTING

Off Enabled

On Disabled

DSW3

ON

OFF

12345678

DSW3-5 SETTING

Off Disabled

On Enabled

DSW3

ON

OFF

12345678

DSW3-6 DSW3-7 SETTING

Off Off Type 4

Off On Type 3

On Off Type 2

On On Type 1

DSW1

ON

OFF

12345678

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-7

Repeat Print via External Signal (DSW3-8): Allows the applicator or other external device to

reprint the current label in the print buffer.

DEFAULT SETTINGS

All switches are placed in the Off default position for shipping. This will result in the following

operating configuration:

SOFTWARE DEFAULT SETTINGS

The printer stores the software settings upon receipt and uses them until they are again changed

by receipt of a command containing a new setting. These settings are stored in non-volatile

memory and are not affected by powering the printer off. The printer may be reset to use the

default software settings by depressing the LINE and FEED keys simultaneously while powering

the printer on. This will result in the following default configuration.

DEFAULT SETTINGS

Communications 8 data bits, no parity, 1 Stop bit, 9600 Baud

Protocol: Ready/Busy

Sensor Gap Sensor

Receive Buffer Multi Job

Mode Batch/continuous

Label Sensor Sensor Used

Backfeed Enabled

External Signals Enabled

SOFTWARE DEFAULT SETTINGS

Print Darkness 3

Print Speed 6 Inches Per Second (3 for M84Pro-6)

Print Reference Vertical = 0000, Horizontal = 0000

Print Offset +0

Zero No Slash

Ignore CR/LF Disabled

Character Pitch Proportional

Auto On Line Enabled

Feed on Error Enabled

DSW3-8 SETTING

Off Disabled

On Enabled

DSW3

ON

OFF

12345678

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-8

Once the default operation is complete, a DEFAULT COMPLETED message will be displayed on

the LCD panel. The printer should be powered off while this message is being displayed (or after

the beep is heard. This saves the default settings in the non-volatile memory where they will be

automatically loaded the next time the printer is powered on.

POTENTIOMETER ADJUSTMENTS

PITCH

After the pitch has been set with the LCD Control Panel, it is sometimes desirable to make minor

adjustments. This can be done using the PITCH potentiometer on the top panel. This

potentiometer is set at the factory so that it has a range of +/- 3.75 mm. The midpoint setting

should have no effect on the pitch. Turning the potentiometer all the way clockwise should move

the print position 3.75 mm up towards the top edge of the label. Turning it all the way

counterclockwise should move the print position down 3.75 mm.

1. Press and hold the FEED key while switching the power switch on.

2. Release the FEED key upon hearing a beep from the printer.

3. Use the Cursor keys to step to the desired option and press the ENTER key to select.

4. Use the Cursor keys to step to the test label size and press the ENTER key to select.

5. Standby for the printer to begin printing test labels continuously.

6. Adjust the PITCH potentiometer until the first print position is at the desired location on the

label.

7. Press the FEED key to cease printing when complete.

8. Power the printer off and then back on, to exit the test label mode.

Feed Reprint Disabled

Priority Command

Language English

CC1 Mem Select Card

Eurocode D5H

DEFAULT COMPLETED

NOTE: Adjusting the PITCH potentiometer will affect the stop position of the

label.

NOTE: The LCD display will inquire what type of test label is desired.

NOTE: If the potentiometer does not have enough range, it will be necessary

to change the pitch setting using the front panel display.

SOFTWARE DEFAULT SETTINGS

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-9

BACKFEED OFFSET

When a label is printed it must be correctly positioned for dispensing and application. Thusly, the

printer advances the label stock sufficiently for the printed label to be dispensed. After the label

has been removed for application, the label stock must be withdrawn back into label printing

position. The backfeed function repositions the label stock for printing.

The Backfeed function is enabled if DSW3-4 is in the Off position. When enabled, placing DSW3-

1 in the Off position will cause the backfeed operation to be performed immediately before each

label is printed. If DSW3-1 is in the On position, the backfeed operation is performed as soon as

the dispensed label has been printed and taken from the printer.

The amount of backfeed is controlled by the OFFSET potentiometer on the DIP Switch Panel

inside the cover. The full adjustment range is +/- 3.75 inches from nominal. The backfeed

adjustment procedure is as follows:

1. Turn the printer on.

2. Press the LINE key to place the printer in the Off-Line status.

3. Press the FEED key to feed out a blank label while observing the dispensement position.

4. Adjust the OFFSET potentiometer on the front control panel as deemed necessary.

5. Repeat steps 4 and 5 until a label is fully released from the liner.

DISPLAY

This potentiometer is used to adjust the contrast of the LCD display for optimum viewing under

various lighting conditions.

PRINT

The PRINT potentiometer is used to adjust the amount of heat (i.e., power) applied to the head

for printing. It provides a continuous range of adjustment. Maximum print darkness is obtained by

turning the potentiometer all the way clockwise and a maximum counterclockwise setting will give

the lightest print.

LCD PANEL PRINTER CONFIGURATION

The LCD Panel allows the printer to communicate with the operator. The operator communicates

with the printer largely through the use of the LINE and FEED keys. Many settings may also be

controlled via software commands. Where software commands and control panel settings

conflict, the printer will always use the last valid setting.

There are seven modes of operation. To enter the desired mode, the KEY SEQUENCE

combination listed in the table below must be performed. The initial LCD display message is

shown for each mode.

NOTE: Adjustment of the PRINT potentiometer will affect the darkness in all

of the command code, speed, and darkness ranges.

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-10

CONFIGURATION MODES

MODE KEY SEQUENCE INITIAL DISPLAY

Normal POWER ONLINE QTY:000000

Advanced LINE + POWER ADVANCED MODE

Test Print FEED + POWER TEST PRINT MODE

CONFIGURATION

Default Setting LINE + FEED + POWER DEFAULT SETTING YES NO

Clear Non-Standard Protocol DSW2-7 ON + LINE + FEED + POWER ALT. PROTOCOL

Protocol Code Download DSW2-7 ON + POWER + LINE USER DOWNLOAD

Hex Dump DSW2-4 ON + POWER ONLINE QTY: 000000

NORMAL MODE

The printer initially powers on in the ONLINE mode. The user can access the User Settings using the

following procedures.

LCD DISPLAY DEFINITION

V 05.00.03.00

INITIALIZING

Displays the firmware during the initialization.

ONLINE

QTY:000000

The LCD will display the ONLINE status on the top line and the label quantity

(QTY) status on the bottom. The message will be changed to OFFLINE

whenever the printer is switched offline by pressing the LINE key. When a

print job is received, the quantity line will indicate the number of labels to be

printed. As the label job prints, the display will indicate the number of labels in

the print job that remains to be printed.

OFFLINE

000000

Press the LINE key once. When the display changes to OFFLINE, press the

FEED and LINE keys simultaneously for more than one second and release.

PRINT DARKNESS

12 345

The LCD now displays the Print Darkness selections. The current setting is

indicated by a cursor over one of the range settings. There are 5 possible

selections. The lowest setting represents the lightest print and the highest

setting the darkest print.

1. Press the Cursor keys to step the cursor to the desired option.

2. Press the ENTER key to select the option and advance to the next display

PRINT SPEED

2 4 6 8 10

The current setting is indicated by the cursor.

1. Use the Cursor keys to step the cursor to the desired option.

2. Press the ENTER key to select the option and advance to the next display

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-11

PITCH OFFSET

+ 00mm

The label Pitch is the distance from the leading edge (the edge that comes out

of the printer first) of a label and the leading edge of the next label. The

leading edge position of the label can be adjusted relative to the print head +/-

49 mm in increments of 1mm. Once the position is set, it can be fine adjusted

+/- 3.75 mm using the PITCH potentometer.

1. The cursor will initially be positioned over the Pitch Direction setting. Use

the LINE key to step to the positive (+) or negative (-) selection. A positive

selection moves the leading edge of the label forward (away from the print

head) while a negative selection moves the leading edge of the label back

into the mechanism.

2. Press the FEED key to select the option and advance the cursor to the

Offset selection.

3. Use the CURSOR keys to step the first digit of the counter to the desired

option. The display will increment one step each time the Cursor keys are

pressed. The maximum setting is 5.

4. Press the FEED key to select the option and advance the cursor to the

second digit. Again use the CURSOR keys to step to the desired option.

5. Press the FEED key to select the option and advance to the next display

6. Print a test label after completing the adjustments to ensure they are

correct.

CANCEL PRINT JOB

YES NO

Selecting the YES option will cause all print jobs to be cleared and not

recovered. The default option is NO.

1. Use the Cursor keys to step the cursor to either the YES or NO option.

2. Press the ENTER key to select the option and advance to the next display

CANCEL PRINT JOB

COMPLETED

The printer will beep 3 times and the display will appear for 3 seconds before

returning to the initial On-Line Normal Mode after the print jobs are cleared.

The printer must be taken off-line and the user settings must be re-entered to

change any of the settings.

ADVANCED MODE

An Advanced Mode is provided to make adjustments that require only occasional changes. Since they

affect the basic operation of the printer, the procedure for entering this mode is designed to prevent

someone from accidently changing the settings.

LCD DISPLAY DEFINITION

V 05.00.03.00

INITIALIZING

Displays the firmware during the initialization.

ADVANCED MODE Press and hold the LINE key while switching the power switch On. Release

the LINE key when the printer emits one long beep. Press FEED.

DARKNESS RANGE

A B

This setting allows the selection of darkness ranges. Option B is the darker

image of the two. Use the LINE key to move the cursor to the desired option

and press the FEED key to select.

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-12

ZERO SLASH

YES NO

This setting determines if a zero is printed with or without a slash. This setting

can also be controlled via software commands. When YES is selected, the

printer internal fonts will have a slash through the center of the zero character.

1. Use the LINE key to step the cursor to either the YES or NO option.

2. Press the FEED key to select the option and advance to the Auto Online

display.

AUTO ONLINE

YES NO

This setting determines the mode in which the printer powers up. If YES is

selected, the printer powers up in the ON-LINE mode and is ready to print. If

NO is selected, the printer powers up in the OFF-LINE mode and must be

manually placed in the ON-LINE mode by pressing the LINE key before it is

ready to print.

1. Use the LINE key to step the cursor to either the YES or NO option.

2. Press the FEED key to select the option and advance to the Print Offset

display.

PRINT OFFSET

V:+0000 H:+0000

Vertical Offset is the distance down from the leading edge (the edge of the

label that comes out of the printer first) to the first vertical print position. A

positive setting moves the label edge out of the printer while making it

negative moves it back into the printer. Horizontal Offset is the distance that

the label image is shifted either to the right or left on the label. The image is

shifted to the left (towards the inside edge of the label) for a positive setting

and it is shifted to the right (towards the outside edge of the label) for a

negative setting. This setting changes the base reference point for all

subsequent label jobs. It’s effect is identical to the <ESC>A3 Base Reference

point command. Since the printer moves the label in discrete steps equal to

the size of the print dot, the units of measure for Vertical and Horizontal Offset

distance is dots. The maximum values that can be set is 3600 for vertical

offset and 3199 for horizontal. If the allowable limit is exceeded, the printer will

not accept the selection.

1. Use the LINE key to step the cursor to the desired option. The display will

increment one step for each time a LINE key is pressed.

2. Press the FEED key to select the option and advance to the next display

3. Repeat step 1 and 2 for character requirement.

4. Press the ENTER key to select the option and advance to the next display

Note: This setting can be overriden by the Base Reference Point Command.

SET CALENDAR

YES NO

The Calendar is a optional feature in the M10e printer allowing the date and

time to be set manually using the LCD Display or via the <ESC>WT Calendar

Set command. This screen will not be displayed if the Calendar Option is not

installed. The last setting (manual or software command) received by the

printer will be the value used. The format of the display is YY/MM/DD hh:mm

(Year/Month/Day/hours:minutes). The date format is fixed and cannot be

changed. This display will only appear if the Calendar Option has been

installed.

1. Press the LINE key to step the cursor to either the YES or NOoption. The

YES option will enable the Calendar feature and NO will disable.

2. Press the FEED key to select the option and advance to the next display

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-13

CALENDAR

00/00/00 00:00

1. Year - Press the LINE key to increase and the FEED key to decrease the

character value to the desired option. The first display shown will have the

cursor over the two digit year selection. Press the Enter key to select the

option and advance to the Month position.

2. Month - Press the LINE key to increase and the FEED key to decrease

the character value to the desired option. Press the Enter key to select the

option and advance to the Day position.

3. Day - Press the LINE key to increase and the FEED key to decrease the

character value to the desired option. Press the Enter key to select the

option and advance to the Hour position.

4. Hour - Press the LINE key to increase and the FEED key to decrease the

character value to the desired option. The entry must coorespond with a

24 hour day. Press the Enter key to select the option and advance to the

Hour position.

5. Minute - Press the LINE key to increase and the FEED key to decrease

the character value to the desired option. Press the Enter key to select the

option and advance to the Ignore CR/LF display.

IGNORE CR/LF

YES NO

This selection tells the printer to strip out all carriage return/line feed pairs

(CR/LF ) from the data stream, including graphics and 2D bar codes. It is used

primrily to maintain compatibility with earlier models of SATO printers.

1. Use the LINE key to step the cursor to either the YES or NO option.

2. Press the FEED key to select the option and advance to the Character

Pitch display.

CHARACTER PITCH

PROP FIXED

This selection allows the default character pitch to either be set for fixed

character spacing or proportional character spacing.

1. Use the LINE key to step the cursor to the desired option.

2. Press the FEED key to select the option and advance to the Advanced

Mode display.

ADVANCED MODE To exit the Advanced mode, power the printer off and then back on.

CARD MODE

The Card Mode is entered from the Advanced Mode display. The Card Mode allows the operator to

manage the Expanded Memory (PCMCIA Card or Internal Expanded Flash ROM).

LCD DISPLAY DEFINITION

V 05.00.03.00

INITIALIZING

Displays the firmware during the initialization.

ADVANCED MODE The Card Mode is entered from the Advanced Mode display by pressing the

right LINE key once.

CARD MODE The Card Mode display indicates that the printer is in the Card Mode. To

advance to the first selection, press the FEED key.

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-14

MEM SELECT (CC1)

CARD MEMORY

This selection determines which type of optional expanded memory will be

addressed as “CC1" in the command streams. The CARD selection specifies

the optional PCMCIA card as CC1 and the optional Expanded Flash ROM as

CC2. The Memory selection specifies the optional Expanded Flash ROM as

CC1 and the optional PCMCIA card as CC2.

1. Use the LINE key to step the cursor to the desired option.

2. Press the FEED key to select the option and advance to the next display

CARD->MEMORYCOPY

TRUETYPEFONT Y/N

This selection allows TrueType fonts to be copied from the PCMCIA Memory

card installed in the Memory Card slot.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will enter the Card Copy mode. If No is selected, the display will

advance to the Card to Memory SATO Font Copy mode.

COPY START

YES NO

2. Confirm the selection by stepping the cursor to the Yes option. If No is

selected, the display will return to the previous selection.

TRUETYPEFONTCOPY

COPYING

3. Press the FEED key to select the option. If Yes was selected the copy

process will begin.

TRUETYPE FONTCOPY

COMPLETED

4. Once the copy process is completed, press the FEED key to step the

display.

CARD COPY/FORMAT

XXXXXXX ERROR

5. If an error is encountered in the copy process, one of the following

messages will be displayed on the second line:

R/W Error Indicates a Read/Write error occured

No Card Error Indicates no card was recognized

Mem Full Error Indicates that there is insufficient memory

available.

CARD->MEMORYCOPY

SATOFONT Y/N

This selection allows SATO fonts to be copied from the PCMCIA Memory card

installed in the Memory Card slot.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will enter the Card Copy mode. If No is selected, the display will

advance to the Card to Memory Copy All mode.

COPY START

YES NO

2. Confirm the selection by stepping the cursor to the Yes option. If No is

selected, the display will return to the previous selection.

SATO FONT COPY

COPYING

3. Press the FEED key to select the option. If Yes was selected the copy

process will begin.

SATO FONT COPY

COMPLETED

4. Press the FEED key to advance to next display.

CARD COPY/FORMAT

XXXXXXX ERROR

5. If an error is encountered in the copy process, one of the following

messages will be displayed on the second line:

R/W Error Indicates a Read/Write error occured

No Card Error Indicates no card was recognized

Mem Full Error Indicates that there is insufficient memory

available.

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-15

MEMORY->CARDCOPY

ALL <0MB> Y/N

This selection allows the entire contents from the optional Expanded Memory

to be copied to the PCMCIA Memory card installed in the Memory Card slot.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will enter the Card Copy mode. If No is selected, the display will

advance to the Card to Memory Copy All mode.

COPY START

YES NO

2. Confirm by stepping the cursor to the Yes option. If No is selected, the

display will return to the previous selection.

CARD->MEMORY

COPY COPYING

3. Press the FEED key to select the option. If Yes was selected the copy

process will start.

CARD->MEMORYCOPY

COMPLETED

4. Press the FEED key to advance to the next display.

CARD COPY/FORMAT

XXXXXXX ERROR

5. If an error is encountered in the copy process, one of the following

messages will be displayed on the second line:

R/W Error Indicates a Read/Write error occured

No Card Error Indicates no card was recognized

Mem Full Error Indicates that there is insufficient memory

available.

MEMORY->CARDCOPY

ALL <0MB> Y/N

This selection allows the entire contents of the optional Expanded Memory to

be copied to the PCMCIA Memory card instaled in the Memory Card slot.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will enter the Card Copy mode. If No is selected, the display will

advance to the Card to Memory Copy All mode display.

COPY START

YES NO

2. Confirm the selection by stepping the cursor to the Yes selection. If No is

selected, the display will return to the previous selection.

MEMORY->CARDCOPY

COPYING

3. Press the FEED key to select the option. If Yes was selected the copy

process will begin.

MEMORY->CARDCOPY

COMPLETED

4. Once the copy process is completed, press the FEED key to step the

display.

CARD COPY/FORMAT

XXXXXXX ERROR

5. If an error is encountered in the copy process, one of the following

messages will be displayed on the second line:

R/W Error Indicates a Read/Write error occured

No Card Error Indicates no card was recognized

Mem Full Error Indicates that there is insufficient memory

available.

CARD->MEMORYCOPY

PROGRAM Y/N

This selection allows the printer firmware to be copied from the PCMCIA

Memory Card to the printer.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will enter the Card Copy mode. If No is selected, the display will

advance to the mode display.

COPY START

YES NO

2. Confirm the selection by stepping the cursor to the Yes option. If No is

selected, the display will return to the previous selection.

CARD->MEMORY

COPY COPYING

3. Press the FEED key to select the option. If Yes was selected the copy

process will begin.

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-16

CARD->MEMORYCOPY

COMPLETED

4. Press the FEED key to advance to the next display when the copy

process is complete.

CARD COPY/FORMAT

XXXXXXX ERROR

5. If an error is encountered in the copy process, one of the following

messages will be displayed on the second line:

R/W Error Indicates a Read/Write error occured

No Card Error Indicates no card was recognized

Mem Full Error Indicates that there is insufficient memory

available.

MEMORY->CARDCOPY

PROGRAM Y/N

This selection allows the current firmware installed in the printer to be copied

to a PCMCIA Memory Card.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will enter the Card Copy mode. If No is selected, the display will

advance to the mode display.

COPY START

YES NO

2. Press the FEED key to select the option. If Yes is selected the copy

process will begin. If No is selected, the display will return to the previous

selection.

MEMORY->CARDCOPY

COMPLETED

3. Press the FEED key to advance to the next display when the copy

process is complete.

CARD COPY/FORMAT

XXXXXXX ERROR

4. If an error is encountered in the copy process, one of the following

messages will be displayed on the second line:

R/W Error Indicates a Read/Write error occured

No Card Error Indicates no card was recognized

Mem Full Error Indicates that there is insufficient memory

available.

CARD FORMAT

YES NO

Before a PCMCIA card can be used, it must be formatted.

Note: Formatting a card destroys all data currently stored on the card.

1. Use the CURSOR keys to step the cursor to desired option. If Yes is

selected, the printer will enter the Card Format mode. If No is selected,

the display will advance to the mode display.

2. Press the ENTER key to select the option and advance to the next display

MEMORY FORMAT

YES NO

Before the internal Expanded Memory can be used, it must be formatted.

Note: Formatting the Memory will destroy any stored data.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will enter the Memory Format mode. If No is selected, the

display will advance to the mode display.

2. Press the FEED key to select the option and advance to the next display

CARD MODE To exit the Card Mode, power the printer off and then back on.

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-17

SERVICE MODE

The Service Mode is entered from the Card Mode through the Advanced Mode. The Service Mode allows

the operator to set up the basic operation parameters of the printer.

LCD DISPLAY DEFINITION

V 05.00.03.00

INITIALIZING

Displays the firmware during the initialization.

ADVANCED MODE The Service Mode is entered from the Advanced Mode display by pressing the

right LINE key twice.

SERVICE MODE The Service Mode display indicates that the printer is in the Card Mode. To

advance to the first selection, press the FEED key.

GAP [X.XXV]

INPUT [X.XV]

The printer determines the location of the leading edge of the label by

measuring the difference between light levels when it sees either a label edge

or a black “EYE” mark. This adjustment allows the threshold voltage level to

be manually set between the maximum and minimum light levels. DIP switch

DSW2-2 selects the sensor type. If DSW2-2 is in the OFF position, the setting

will be for a See-Thru (or Gap) sensor and the LCD will display “GAP” on the

top line along with the current setting. If DSW2-2 is in the ON position, the

LCD will display “EYE” on the top line with its current setting. If the value

entered for the bottom line setting is “0.0V”, then the printer will automatically

calculate the setting when the first label is fed after the printer is powered on

or the head is closed. There are some instances where the automatically

calculated value must be adjusted to ensure reliable label feeding, such as

when the backing opacity or the reflectance of the EYE mark varies

significantly within a roll of labels or between label rolls. In these instances the

value should be set using the following procedures.

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-18

GAP [X.XXV]

INPUT [X.XV]

GAP - When setting the “gap” threshold, the voltage shown on the top line of

the display must be measured with nothing but the backing in the sensor and

then again with a label still attached to the backing. The formula to be used for

setting the threshold is:

(High Voltage Level + Low Voltage Level) x 0.5 = Start Value

1. Insert a label still attached to the backing into the sensor and close the

Label Hold-Down. Record the voltage shown on the top line of the LCD

panel. This line should have the message “GAP” on the top line (DIP

switch DSW2-2 = OFF). Ensure the label is fully under the sensor.

2. Strip the label from the backing and insert the backing strip under the

sensor and close the Label Lid. Record the voltage shown on the top line

of the LCD panel. The voltage ranges measured should be within the

following ranges:

Backing with label = 2.0V to 3.5V

Backing without label = Less than 1.0V

If the measured values are outside this range, it may be difficult finding a value

that will work properly under all conditions. If this is the case, a higher quality

label may be needed to get adequate performance.

3. Calculate the starting point voltage using the formula.

4. Use the LINE and FEED keys to step the counter to the desired setting.

The reading will advance to a setting of 4.9 (the maximum voltage). If a

value of “0.0” is set, the printer will automatically set the level each time

the printer is powered on with labels loaded and the head is closed.

5. Once the setting is correct, pressing the ENTER key will accept the

setting and advance the next display.

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-19

EYE [X.XXV]

INPUT [X.XV]

EYE - When setting the “eye” threshold, the voltage must be measured with

nothing but the label under the sensor and then again with the printed “eye”

mark under the sensor. The formula for this is:

(High Voltage Level + Low Voltage Level) x 0.5 = Start Value

1. Insert a label into the sensor and close the label holder. Make sure the

printed “eye” mark is not under the sensor. Record the voltage shown on

the top line of the LCD panel. This line should have the message “EYE”

on the top line (DIP switch DSW2-2 = ON).

2. Pull the label forward until the “eye” mark is positioned under the sensor

(the voltage reading should be at its highest point). Record the voltage

shown on the top line of the LCD panel. The voltage ranges measured

should be within the following ranges:

Eye-Mark = 2.5V to 3.5V

Label Only = Less than 1.0V

If the measured values are outside this range, it may be difficult finding a value

that will work properly under all conditions. If this is the case, a higher quality

label may be needed to get adequate performance.

3. Calculate the starting point voltage using the formula.

4. Use the LINE and FEED keys to step the counter to the desired setting.

The reading will advance to a setting of 4.9 (the maximum voltage). If a

value of “0.0” is set, the printer will automatically set the level each time

the printer is powered on with labels loaded or the head is closed.

5. Once the setting is correct, pressing the ENTER key will accept the

setting and advance to the next display.

AUTO ONLINE FEED

YES NO

This selection specifies whether or not the printer will feed a label when it is

placed in the On-Line mode.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will feed a blank label anytime it enters the Online mode.

2. Press the FEED key to select the option and advance to the next display.

FEED ON ERROR

YES NO

This selection specifies whether or not the printer will feed a label when an

error condition is cleared.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will feed a blank label anytime an error condition is cleared.

2. Press the FEED key to select the option and advance to the next display.

REPRINT W/FEED

YES NO

Specifies whether or not the printer will print the last printed label stored in

memory when the FEED key is pressed in the Normal Online mode.

1. Use the LINE key to step the cursor to desired option. If Yes is selected,

the printer will reprint the last label when the FEED key is pressed. If the

printer is off-line, pressing the FEED key will feed a blank label.

2. Press the FEED key to select the option and advance to the next display

FORWARD/BACKFEED

DISTANCE DEFAULT

This display will only appear if Backfeed is enabled (DSW3-4 = OFF). The

maximum backfeed distance is 255 mm.

1. Use the LINE key to select either the Default or the Manual option.

2. Press the FEED key to select the option and advance to the next display

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-20

FORWARD/BACKFEED

DISTANCE XXXmm

3. If Manual option is selected, use the Cursor keys to advance the distance

to the desired setting. Each time the CURSOR key is pressed, the

distance will advance 1 mm. The maximum distance is 255 mm.

4. Press the FEED key to select the option and advance to the next display

EXT PIN 9 SELECT

MODE1 MODE2

Allows selection of the conditions that cause the signal on Pin 9 of the EXT

connector to be true. If Mode1 is selected, pin 9 will be true when the printer is

ready to print, i.e. it is on-line and has a print job loaded (a quantity of labels to

be printed on the display). If Mode 2 is selected, pin 9 will be true if the printer

is on-line.

1. Use the LINE key to step the cursor to the desired option.

2. Press the FEED key to select the option and advance to the next display

EURO CODE

D5

Allows the dexadecimal code to be specified for the character replaced with

the Euro Character. The default is D5H.

1. Use the LINE key to step to the desired option of the first character.

2. Press the FEED key to select the option and advance the cursor to the

second character of the desired hexadecimal code.

3. Repeat steps 1 and 2 for each character.

4. Press the FEED key to select the option and advance to the next display

SELECT LANGUAGE

ENGLISH

Allows the selection of the character set used by the printer. The options are

English, French, German, Spanish, Italian and Portuguese.

1. Use the LINE key to advance to the desired language option.

2. Press the FEED key to select the option and advance to the next display

IGNORE CAN/DLE

YES NO

If the printer is placed in the Multi-Item Buffer Mode (DSW2-5 = ON), the user

can choose to ignore CAN (18H) and DLE (10H) commands used in bi-

directional communications (refer to section: Interface Specifications). If the

Single Item Buffer Mode is chosen (DSW2-5 = OFF), this display will be

skipped.

PRIORITY SETTING

COMMAND LCD

Allows the assignment of a priority for Print Darkness, Print Speed, and Print

Offset setting methods. If LCD is selected, the setting established via the LCD

display/menu system will be used for an incoming label job, regardless of any

different command settings. If Command is selected, any commands in the

label job will take precedence and be used for printing the job.

1. Use the LINE key to step to the desired priority option.

2. Press the FEED key to select the option and advance to the next display

LABEL RE-DETECT

ENABLE DISABLE

Allows disabling the feeding of a blank label upon power up. If Enable is

selected, the printer will automatically feed a label until it detects a label

image. This will correctly position the next printed label under the print head. If

Disable is selected, the printer will not attempt detection and the operator is

responsible for ensuring a correctly positioned label before printing.

1. Use the LINE key to step to the desired option.

2. Press the FEED key to select the option and advance to the next display

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-21

IEEE1284

ACK SIGNAL 00.5

If the printer is placed in the Single Item Buffer Mode (DSW2-5 = ON), this

selection allows the width of the IEEE1284 ACK pulse to be set. In the Multi-

Item Buffer Mode, this display will be skipped.The range is 0.5 µsec to 10

µsec.

1. Use the LINE key to step the display to the desired option. The setting will

advance in increments of 0.1 µsec each time the CURSOR key is pressed

until the setting reaches 10.0 µsec when it will wrap around to the 0.5

µsec setting.

2. Press the FEED key to select the option and advance to the next display

SERVICE MODE The Service mode is exited by powering the printer off and then back on.

COUNTERS MODE

The Counters Mode is provided to allow the user to access the internal printer cousters.

LCD DISPLAY DEFINITION

ADVANCED MODE The Counter Mode is accessed from the Advanced Mode. Press the

CURSOR keys to step to the Counter Mode.

COUNTERS MODE Press the FEED key to advance the display to the counter selections.

COUNTERS

HD CUT LIFE

The counters are identified in the display as:

HD: Head Counter (should be reset when print head is replaced)

CUT: Cutter Counter

LIFE: Life Counter (cannot be reset)

1. Use the LINE key to step the cursor to the desired counter; Head (HD)

counter or the LIFE counter. The default position is the Head Counter.

HEAD COUNTER

0.5M

2. Press the FEED key to select the desired option. The current value (in

meters) stored in the counter will be displayed. The maximum number of

digits displayed is 8.

3. Press the FEED key again to advance the counter to the Clear mode. All

counters with the exception of the LIFE counter will be cleared.

HEAD COUNT CLEAR

YES NO

4. Use the LINE key to select the desired option. If wanting to read the

counter value only, select NO. If wanting to read the counter and reset it to

0.0, select YES.

5. Press the FEED key to return to the Counters Mode display.

COUNTERS MODE 6. To exit the Counters Mode, turn power to the printer off and then back on.

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-22

.

TEST PRINT MODE

The Test Print Mode offers 4 different status labels for troubleshooting. If DSW3-5 is in the OFF position,

the Test Print cycle must be initiated with a Print Start signal on the EXT connector You enter the Test

Print Mode by pressing the FEED key while powering the printer on.

LCD DISPLAY DEFINITION

V 05.00.03.00

INITIALIZING

Displays the firmware during the initialization.

TEST PRINT MODE

CONFIGURATION

This option allows printing of a test label. It is recommended that a test label

be printed after the settings in the Advanced Mode have been changed. The

test label provides verification that the correct changes were entered.

1. Press the FEED key while switching on the power switch to access the

Test Print Mode.

2. Release the FEED key when the printer beeps.

3. Use the CURSOR keys to step the cursor to the test label type option

desired. They are:

CONFIGURATION

BARCODE

HEADCHECK

MEMORY

FACTORY

4. Press the FEED key to select the desired option.

TEST PRINT SIZE

10 CM

Note: This screen will not be displayed for the Memory Test Label.

This display allows label width selection.

1. Use the LINE key to step to the desired label width option.

PRESS FEED KEY TO

STOP PRINTING

2. Press the FEED key to select the option.

3. Press the FEED key to start printing test labels continuously.

4. Press the FEED key to stop the printer.

5. To exit the Test Print Mode, power the printer off and then back on.

DEFAULT SETTINGS MODE

Occassionally it is desirable to reset all printer configuration settings to their original default conditions.

This allows the operator to start reconfiguration of the printer starting from a know set of conditions.

LCD DISPLAY DEFINITION

V 05.00.03.00

INITIALIZING

Displays the firmware during the initialization.

DEFAULT SETTING

YES NO

Allows the reset of original printer default settings. Enter the Default Setting

Mode by:

1. Press and hold the LINE and FEED keys while switching on power.

1. Release the LINE and FEED key when the printer emits one long beep.

1. Use the LINE key to step to either the YES or NO option.

2. Press the FEED key to select the desired option.

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-23

DEFAULT SETTING

COMPLETED

When the printer has completed the reset process it will beep 3 times and the

Default Setting Completed display will appear. At this time the printer is in the

default configuration.To exit the Default Setting Mode, power the printer off

and then back on.

MAINTENANCE/FACTORY MODE

This function is used to clear counters and reset the printer’s firmware. It is also used after upgrading the

flash firmware or installing a new memory module.

LCD DISPLAY DEFINITION

MAINTENANCE MODE

DIPSW2-4 ON>OFF

Record all dip switch positions and place all in the OFF position.

1. Place DSW2-4 switch in the ON position.

2. Press and hold the LINE and FEED keys while switching on the power.

3. Release the LINE and FEED keys when the printer beeps.

FACTORY MODE 4. Place the DSW2-4 switch in the OFF position.

5. Press the FEED key to advance to the next display.

COUNTER CLEAR

NONE

6. Use the LINE key to step the cursor to the desired option.

7. Press the FEED key to select the option and advance to the next display.

PRINT SIZE

SMALL LARGE

8. Use the LINE key to step to the desired option (128 mm or 266 mm).

9. Press the FEED key to select the option and initiate test printing.

PRESS ENTER KEY

TO STOP PRINTING

The FEED key may be pressed and repressed to start and stop printing

at will.

ALL CLEAR MODE

This function is used to clear counters and reset the printer’s firmware. It is also used after upgrading the

flash firmware or installing a new memory module.

LCD DISPLAY DEFINITION

MAINTENANCE MODE

DIPSW2-4 ON>OFF

Record all dip switch positions and place all in the OFF position.

1. Place DSW2-4 switch in the ON position.

2. Press and hold the LINE and FEED keys while switching on the power.

3. Release the LINE and FEED keys when the printer beeps.

FACTORY MODE 4. Place the DSW2-4 switch in the OFF position.

5. Press the FEED key to advance to the next display.

ALL CLEAR MODE 6. Press the FEED key to ENTER THE ALL CLEAR COUNTER EEPROM

Mode.

ALL CLEAR

COUNTER EEPROM

7. Use the LINE key to step to the desired option (COUNTER).

8. Press the FEED key to select the option and display the current value.

XXXXXXXALL CLEAR

YES NO

9. Use the LINE key to step to the desired option (YES) and ENTER to

select the option.

XXXXXXXALL CLEAR

COMPLETED

LCD DISPLAY DEFINITION

Section 5: Printer Configuration

M84Pro Service Manual PN: 9001111A Page 5-24

CLEAR NON-STANDARD PROTOCOL

The standard protocol codes used by the printer can be modified to accomodate the requirements of

different host systems. However, if the printer is to be used with a system that does not use the custom

protocol codes, they can be cleared and the default protocol codes reactivated. The default values are:

STX = 7BH, ETX = 7DH, ESC = 5EH, ENQ = 40H, NULL = 7EH, CAN = 21H and OFFLINE = 5DH.

LCD DISPLAY DEFINITION

V 05.00.03.00

INITIALIZING

Displays the firmware during the initialization.

ALT.PROTOCOL

DEFAULT COMPLETE

To Clear Non-Standard protocol codes:

1. Place DSW2-7 in the On position.

2. Press and hold the LINE and FEED keys while switching on the printer.

3. Release the LINE and FEED keys when the printer emits one long beep.

4. Standby for the printer to replace the Alternate protocol codes with the

default values.

The printer will emit two short beeps when the process is complete. To exit the

mode, power the printer off and then back on.

DOWNLOAD USER DEFINED PROTOCOL CODES

The user can define a set of custom protocol codes and download them to the printer using the <ESC>LD

command.

LCD DISPLAY DEFINITION

V 05.00.03.00

INITIALIZING

Displays the firmware during the initialization.

USER DOWNLOAD

PRESS THE LINE KEY

Allows the replacement of the Standard Protocol Codes or the Alternate set of

Protocol Codes. To enter the User Download mode:

1. Place DSW2-7 in the on position.

2. Press and hold the LINE and FEED keys while switching on the power.

3. Release the LINE and FEED keys when the printer emits one long beep.

USER DOWNLOAD

WAITING

4. Press the LINE key. The printer is now waiting for the data to be sent.

5. Transmit the download data command stream to the printer.

After the data has been received, the printer will beep and print a status label.

If it does not beep and print a status label, the printer did not accept the data.

If the printer did not beep and print a status label, turn the printer off and check

your data stream for errors and start the download process over.

If the custom codes are correct, press the FEED key to accept them and

terminate the download process. If they are incorrect, turn the printer off

without pressing the ENTER key and begin the process again.

Section 5: Printer Configuration

M84Pro Service Manual PN 9001111A Page 5-25

HEX DUMP MODE

In addition to the Test Print Labels, the printer can print the contents of the receive buffer in a hexadecimal

format to allow the data stream to be examined for errors and troubleshooting.

LCD DISPLAY DEFINITION

V 05.00.03.00

INITIALIZING

Displays the firmware during the initialization.

ONLINE

QTY:000000

The Hex Dump Mode is entered by placing DSW2-4 in the On position and

powering the printer on.

1. The printer is now ready to receive data.

2. Send the data stream to the printer.

3. The received data will be printed in a hexadecimal format4.

4. To return the printer to normal operation, place DSW2-4 in the off position

and power the printer off and then back on.

M84Pro Service Manual PN: 9001111A Page 6-1

6

TROUBLESHOOTING

ERROR SIGNALS

The LED display, Front Panel LED Indicators and Buzzer provide a visual and audio indication of

the type of error encountered. Find the correct symptom in the table below to reference the

correct response.

LED LCD MESSAGE BEEP ERROR CONDITION TO CLEAR

Error on Machine error 1 long Machine Error Cycle power on/off.

Error on EEPROM error 1 long EEPROM read/write error Cycle power on/off.

Error on Head error 1 long Print Head is damaged Replace print head.

Cycle power.

Error on Sensor error 3 short Sensor Cycle power on/off.

Error blinks Card r/w error 1 long Memory card read/write Format card and cycle

power.

Error blinks Card low Battery 1 long Memory card battery low Replace battery and

cycle power.

Error blinks Head Open 3 short Head open Latch print head.

Error on Line

blinks

Parity Error 3 short RS232 parity error Match parity to system.

Error on Line

blinks

Overrun Error 3 short RS232 overrun error Verify RS232 settings.

Error on Line

blinks

Framing Error 3 short RS232 framing error Verify RS232 settings

Error on Line

blinks

Buffer Over 3 short Buffer overflow Verify RS232 settings.

Error on Line

blinks

Paper End 3 short Media end or misselected

media type.

Replenish media, select

correct media, open/

close head lever, open/

close media hold down

Error blinks

Ribbon on

Ribbon End 3 short Ribbon end or ribbon broken. Replace ribbon. Open/

Close Head Lever.

Open/Close Media Hold

Down

Error blinks,

Label blinks

Media Error 3 short Media error Open/Close head lever.

Ribbon blinks None Ribbon near end. Replace ribbon with full

roll.

Line blinks None Buffer near full Slow down transmission

rate.

Section 6: Troubleshooting

M84Pro Service Manual PN 9001111A Page 6-2

TROUBLESHOOTING TABLE

Use the tables below to isolate problems based on their symptoms. Refer to their relative

procedures as applicable to correct the problem. The troubleshooting table below includes the

following general symptom descriptions:

Image Voids No Ribbon Movement Power LED Not Illuminated

Ribbon Wrinkle No Label Movement Error LED Illuminated

Light Print Images No Printed Image On Line Led not Illuminated

Smeared Print Images Display Problem No Label Drive

IMAGE VOIDS

Poor label quality. Use thermal transfer compatible stock.

Poor ribbon quality. Use genuine SATO ribbons.

Ribbon not matched to label stock. Consult with media supplier.

Damaged electronics. Replace circuit board.

Damaged platen. Replace platen.

RIBBON WRINKLING

Poor head alignment. Adjust head balance, ribbon roller, and head alignment.

Poor ribbon tension. Adjust tension as required.

Worn platen. Replace as necessary.

Foreign material on head or platen. Clean as required.

Foreign material no labels. Use high quality label stock.

Damaged print head. Replace print head as required.

LIGHT PRINT IMAGES

Poor label quality. Use thermal transfer compatible stock.

Poor quality ribbons. Use genuine SATO ribbons.

Low print head energy/darkness. Adjust darkness control. Refer to Operators Manual.

Low print head pressure. Adjust head balance.

Ribbon not matched to label stock. Use Premier II ribbon with a “1C” thermal transfer ribbon stock

or equivalent for optimum results.

Low ribbon and drive torque or no ribbon

movement.

Adjust ribbon drive clutch.

Foreign material on print head. Clean print head and platen roller.

Poor head alignment. Align print head as required.

Excessive print speed. Reduce print speed setting.

Section 6: Troubleshooting

M84Pro Service Manual PN: 9001111A Page 6-3

SMEARED PRINT IMAGES

Poor label quality. Use high quality label stock.

Poor ribbon quality. Use genuine SATO ribbons.

Foreign material on print head and platen

roller.

Clean print head and platen roller.

Foreign material on labels. Use high quality label stock.

Excessive print head energy. Adjust darkness control.

Excessive print speed. Adjust as speed as required.

Excessive head pressure or incorrect

carbon tension.

Adjust head balance.

NO RIBBON MOVEMENT

Incorrect ribbon core size. Use genuine SATO ribbons.

Loose drive clutch. Adjust drive clutch tension.

Loose platen drive belt. Adjust or replace drive belt as necessary.

No +24 volt output. Test power supply and replace as necessary.

Damaged electronics. Replace circuit board.

NO LABEL MOVEMENT

Loose or broken platen drive belt. Adjust or replace platen drive belt as required.

Incorrect label pitch sensor selected. Select the correct label sensor type (DSW2-2).

No +24 volt output. Replace fuse on main circuit board. Test power supply and

replace as required.

Loose set screw on platen pulley/stepper

motor.

Tighten set screws.

NO PRINTED IMAGE

Print head is disconnected. Ensure that print head wiring harness is connected on each

end.

Ribbon is installed upside down. Ensure a correct ribbon installation.

No +24 volt output. Test power supply and replace as necessary.

Damaged print head. Replace print head.

Damaged electronics. Replace circuit board.

LED FIELD ILLUMINATED BUT WITHOUT WORDS OR NO DISPLAY AT ALL

Ribbon sensor cable disconnected. Ensure a proper connection.

Incorrectly positioned display potentiom-

eter.

Adjust as required.

POWER LED NOT ILLUMINATED

AC power cable disconnected. Ensure the cable is connected at each end.

Section 6: Troubleshooting

M84Pro Service Manual PN 9001111A Page 6-4

TROUBLESHOOTING PROCEDURES

The procedures below provide in depth instructions on symptom analysis of specific

components. If it is suspected that the problem lies within one of these components, refer to the

relative instructions.

RS232 SERIAL INTERFACE

• Ensure the serial cable is thoroughly connected to the PC and the printer.

• Ensure the serial cable is not defective. The minimum requirements is that a Null Modem

Cable or correct Pin Outs be used and that it be manufactured to specifications. Refer to the

Interface Specifications section of this manual.

• Ensure the RS232 Interface Module is installed. Different module types will have an impact

on transmission speed.

• Ensure the data stream is correct, all letters of command codes are in upper case, and with-

out spaces. Carriage Returns are also not acceptable in line fields.

Main power fuse defective. Replace fuse.

Defective power supply. Test with meter and replace as required.

ERROR LED ILLUMINATED

Print head not latched into position. Ensure print head assembly is latched.

LABEL LED IS ILLUMINATED

Label supply roll is empty. Replenish label supply.

Label stock is not routed through sensor. Ensure label roll is correctly installed.

Label sensor incorrectly positioned. Adjust sensor position.

Label sensor is blocked. Clean label sensor.

Incorrect label sensor threshold setting. Adjust label sensor threshold.

Platen drive malfunction. Perform drive train analysis.

RIBBON LED ILLUMINATED

Ribbon supply roll is empty. Replenish ribbon supply.

Ribbon supply is misaligned. Realign ribbon sensor.

Ribbon sensor is blocked. Clean ribbon sensor.

Ribbon rewind is without core. Install cardboard core.

CAUTION: NEVER CONNECT OR DISCONNECT INTERFACE CABLES

(OR USE A SWITCH BOX) WITH POWER APPLIED TO EITHER THE

PRINTER OR THE HOST. THIS MAY CAUSE DAMAGE TO THE INTER-

FACE CIRCUITRY AND IS NOT COVERED BY WARRANTY.

POWER LED NOT ILLUMINATED

Section 6: Troubleshooting

M84Pro Service Manual PN: 9001111A Page 6-5

• Ensure the Baud rate, Parity, Data Bits, and Stop Bits are consistent with that of computer.

Print a Configuration Test Label to determine the RS232 settings.

• Ensure the printer is receiving from the computer using a Receive Buffer Hex Dump. Refer to

the Hex Dump procedure in this manual for instructions. The printer will print (only once) a

hexadecimal dump of everything it has received from the host computer. Each hexadecimal

character represents a character the printer received. Analyze and troubleshoot the data

stream.

While checking the hex dump printout, look for ODH OAH (carriage return and line feed) char-

acters throughout. The command string should be continuous. CR or LF characters are not

allowed between the start command (<ESC>A) and the stop command (<ESC>Z). If Basic is

being used, it may be adding these characters automatically as the line wraps. Adding a

width statement to your program can help suppress these extra ODH OAH characters by

expanding the line length up to 255 characters.

If not programming in BASIC, check to see if the equivalent statement in the language exists

to suppress extra carriage returns and line feeds from data being sent to the printer. The data

stream must be one complete line going to the printer.

UNIVERSAL SERIAL BUS (USB) INTERFACE

If nothing prints when during a test print, verify that the device drivers have been successively

installed by performing the following:

1. Click on Start, Settings, and then Control Panel.

2. Click on System within the new window.

3. Click on the Device Manager tab.

4. Ensure that the View Device By Type is checked.

5. Scroll down to SATO-USB Device and ensure that errors do not exist. Reinstall as required.

6. Reboot the PC and the printer.

7. Contact Microsoft technical support for further assistance as required.

PARALLEL INTERFACE

• Ensure the printer cable is thoroughly connected to the PC and the printer.

• Ensure the printer cable is connected to the correct ports on each end.

• Ensure the printer cable (IEEE1284) meets specifications. The computer may not be able to

communicate correctly otherwise.

• Ensure the Interface Module is installed.

NOTE: A small label may produce a large amount of data when printed in

Hex Dump.

Section 6: Troubleshooting

M84Pro Service Manual PN 9001111A Page 6-6

• Ensure the data stream is correct, all letters of command codes are in upper case, and with-

out spaces.

• Ensure protocol codes are set for standard or non-standard and that they are consistent with

the data stream.

• Ensure the printer is receiving from the computer using a Receive Buffer Hex Dump. Refer to

that procedure for instructions. The printer will print (only once) a hexadecimal dump of

everything it has received from the host computer. Each hexadecimal character represents a

character the printer received. Analyze and troubleshoot the data stream.

While checking the hex dump printout, look for ODH OAH (carriage return and line feed) char-

acters throughout. The command string should be continuous. CR or LF characters are not

allowed between the start command (<ESC>A) and the stop command (<ESC>Z). If Basic is

being used, it may be adding these characters automatically as the line wraps. Adding a

width statement to your program can help suppress these extra ODH OAH characters by

expanding the line length up to 255 characters.

If not programming in BASIC, check to see if the equivalent statement in language exists to

suppress extra carriage returns and line feeds from data being sent to the printer. The data

stream must be one complete line going to the printer.

LAN ETHERNET INTERFACE

•If the printer does not come up ready: Ensure the printer is powered on, all cables are con-

nected, and the printer is on-line. If possible, connect a terminal to the serial port and observe

for a boot prompt indicating the print server firmware has not been loaded properly. If reload-

ing does not correct the problem, try pressing switch 1 for more than 10 seconds. If the prob-

lem persists, the product may be defective.

•If the printer comes up ready but will not print: There is a problem with the interface

between the server and the printer, network connection or cabling, or a queue setup flaw. The

queue setup flaw could be the result of a faulty print server setup or other protocol-related

scenarios. Systematically perform checks and tests to isolate the cause.

The interface between the printer and server may be checked by waiting approximately two

minutes after the printer is powered on and then run a self-test label. If a self-test label does

not print, there could be a hardware problem. Double check the cable connections. In some

rare cases, disabling NBUF with the command SET PORT P1 NBUF DISABLED will solve

the problem.

If connecting to a 10baseT network, verify that the OK LED is illuminated. If the appropriate

LED’s are not on, there is a possibility of a defective cable or connector. Try connecting a

different cable, port, or device to observe the results.

If using a repeater or hub, ensure that SQE is turned off at the hub (this is the default setting

for most hubs). Also, test the hub or repeater by trying the print server on a different port.

NOTE: A small label may produce a large amount of data when printed in

Hex Dump.

Section 6: Troubleshooting

M84Pro Service Manual PN: 9001111A Page 6-7

If using a bridge or router located between the print server and the host computer, ensure

that the device is setup to allow the print server to send and receive data from the host. For

example, a bridge can only be set up allow certain types of Ethernet addresses to pass

through (a process known as filtering). Such a bridge must be configured to allow print server

addresses. Likewise, a router can be set up to only pass certain protocols. Ensure that the

desired protocol can be passed through to the print server. In the case of routers, also ensure

that the protocol is routable (LAT, NetBEUI, and DLC/LLC are not routable.

Ensure that you are not attempting to perform an illegal operation such as printing a label l

larger than the printer can handle.

Check the protocol troubleshooting sections provided with the Ethernet Interface Module for

additional causes of intermittent printer problems.

• Experiencing intermittent printing problems: Excessive NetWare polling may be a big cause

of intermittent problems. Ensure that only the needed NetWare file servers have been

enabled (do a SHOW NETWARE command from the print server console to see the enabled

file servers). If V3.21 or earlier versions of firmware is in use, ensure that NetWare polling is

disabled by using the console command SET NETWARE RANGE 0. If Netware is not in use,

disable NEtWare entirely with the command SET NETWARE DISABLED.

Check the individual troubleshooting sections provided with the Ethernet Plug-In Interface

Module for additional causes of intermittent printer problems.

TP TEST MODULE USAGE

The SATO TP Test Module is a purchase option specially designed and sold by SATO America

to assist in troubleshooting SATO Printers. The use of this device will facilitate the identification

and isolation of problem circuitry and for voltage adjustment.

1 Remove applicable housing covers as directed in Figure 10-1 of the Diagrams section.

2 Connect the harness from Test Module (1, FIgure 6-1) to main circuit board connector (2).

3 Connect the multimeter ground probe to the pin identified as GND (3) on Test Module (1).

4 Connect the multimeter positive probe to the pin identified as SIG (4) on Test Module (1).

5 Turn on the printer and rotate Test Module dial (5) to the required position.

6 Record the multimeter values and confirm they are within specified tolerences.

NOTE: The ground and positive probes of the multimeter may also be con-

nected to the Test Module by inserting the probes into their respective con-

nection ports (6) arranged vertically along the right front side of the Test

Module. If this method is used, the dial should be set at (0) zero. Refer to Fig-

ure 6-2 for connection port identification.

NOTE: Refer to Figure 6-2 for the correct Test Module position.

Section 6: Troubleshooting

M84Pro Service Manual PN 9001111A Page 6-8

7 Troubleshoot and/or replace components as directed in their respective procedures.

Figure 6-1, TP Test Module Usage

NOTE: Voltage readings must be +/- 10% of specification for proper

operation.

DIAL APPLICATION DESCRIPTION

0 through 3 Used to determine voltage. Refer to the specifications section of this manual to determine

a component’s required voltage level. Set the dial to that voltage requirement and the milli-

meter reading should be in the same range if properly performing.

4 Used for testing and adjustment of the VR5 potentiometer when Eye-Mark printing.

5 Used for testing and adjustment of the VR4 potentiometer when GAP printing.

6 Used for testing and adjustment of the VR2 potentiometer when printing with dispencer.

The potentiometer should be turned fully clock-wise for this operation.

7 Used for testing and adjustment of the VR3 potentiometer for ribbon end sensing.

IEEE1284 + RS BOARD

01

2

8

7

6

54

3

GNDSIG

1A

2A

3A

4A

6B

5B

4B

3B

1B

2B

6A

5A

2

6

5A

6A

2B

1B

3B

4B

5B

6B

4A

3A

2A

1A

SIG

GND

3

4

5

6

7

8

2

1

0

1

1

5

34

Section 6: Troubleshooting

M84Pro Service Manual PN: 9001111A Page 6-9

RIBBON SENSOR OPERATION VERIFICATION

Verification that the ribbon sensor is operational may be achieved using the Operator Panel

located on the front housing cover.

1 Access the dip switches located on the Operator Panel.

2 Record all dip switch positions.

3 Place DSW2-1 dip switch in the off position, then switch off the printer.

4 Remove ribbon from the printer as applicable and latch down print head.

5 Switch on the printer.

6 Press the LINE key to place the printer off-line.

7 Press the FEED key and wait for the printer to beep.

8 Switch off the printer, install ribbon, and switch the printer on again.

9 Press the LINE key to place the printer off-line.

10 Press the FEED key to generate a blank label and confirm that the ribbon has been properly

installed.

LCD DISPLAY: INITIALIZING

ROM V00.00.00.00

LCD DISPLAY: ONLINE

QTY:000000

LCD DISPLAY: RIBBON END

NOTE: The ribbon end display is confirmation that the sensor is functioning.

LCD DISPLAY: INITIALIZING

ROM V00.00.00.00

Section 6: Troubleshooting

M84Pro Service Manual PN 9001111A Page 6-10

M84Pro Service Manual PN: 9001111A Page 7-1

7

REPLACEMENT PROCEDURES

The M84PRO Printer contains replaceable components and sub-assemblies. This section

contains step-by-step instructions for the removal and replacement of those primary components

and sub-assemblies that are subject to wear or damage.

MAIN CIRCUIT BOARD REPLACEMENT

The main circuit board contains the control electronics for the printer and is located behind the

left side cover. The interface board must be removed prior to the main circuit board. The

daughter board and optional memory card should also be removed to prevent possible damage

during circuit board removal.

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove applicable housing covers.

3 Disconnect all wiring harnesses attached to main circuit board (1, Figure 7-1) or daughter

board (2).

Figure 7-1, Circuit Board Replacement

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover removal.

IEEE1284 + RS BOARD

BELT CONFIGURATION

1

2

3

4

5

6

7

8

8

8

POWER BOARD

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-2

4 Remove two screws (3) securing interface board (4) to printer housing.

5 Withdraw interface board (4) from its connection with main circuit board (1).

6 Remove three screws (5) securing daughter board (2) to main circuit board (1).

7 Withdraw daughter board (2) from its connection with main circuit board (1).

8 Detach optional memory card (6) from its connection with main circuit board (1).

9 Remove two exterior screws (7) securing main circuit board (1) to the housing.

10 Remove three interior screws (8) securing main circuit board (1) to the printer frame.

11 Withdraw main circuit board (1) from within the printer.

12 Prepare to replace main circuit board (1).

13 Install main circuit board (1) into mounting position and secure to the printer frame using

three screws (8).

14 Secure the exterior of main circuit board (1) using two screws (7).

15 Connect optional memory card (6) to main circuit board (1) as applicable.

16 Connect and attach daughter board (2) to main circuit board (1) using three screws (5).

17 Connect interface board (4) to main circuit board (1) and secure to housing using two

screws (3).

18 Reconnect all wiring harnesses (Figure 7-2).

19 Reconnect power supply cord, test cycle, and reattach housing covers.

Figure 7-2, Circuit Board Replacement

IEEE1284 + RS BOARD

C

A

B

D

G

F

E

F

E

D

C

G

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-3

INTERFACE BOARD REPLACEMENT

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

3 Remove two screws (1, Figure 7-3) securing interface board (2) on the exterior back side of

printer.

4 Carefully withdraw interface board (2) from its connection with main circuit board (3).

5 Insert replacement interface board (2) through the housing slot to connect with main circuit

board (3).

6 Secure interface board (2) to printer housing using two screws (1).

7 Reconnect power supply cord, test cycle, and reattach left side cover.

Figure 7-3, Interface Board Replacement

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover removal.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover installation.

IEEE1284 + RS BOARD

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1

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Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-4

DAUGHTER BOARD REPLACEMENT

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove thetop, right, and left housing covers.

3 Disconnect the print head wiring harness (1, Figure 7-4) from daughter board (2).

4 Remove the three screws (3) securing daughter board (2) to main circuit board (4).

5 Disconnect daughter board (2) from main circuit board (4).

6 Connect replacement daughter board (2) to main circuit board (4) and secure using three

screws (3).

7 Reconnect power supply cord, test cycle, and reattach housing covers.

Figure 7-4, Daughter Board Replacement

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover removal.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover installation.

IEEE1284 + RS BOARD

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Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-5

MEMORY CARD REPLACEMENT

The optional memory card is direct connected to the main circuit board behind the daughter

board. To replace the memory card, follow the daughter board replacement procedures for card

access. Then pull the mounting brackets away from the memory card while pivoting the card

outward.

To insert a new memory card, insert the contact side of the card into its mounting bracket first

followed by the remainder of the card. The optional memory card is designed so that it will only

mount if properly oriented.

POWER BOARD REPLACEMENT

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

3 Locate power board (1, Figure 7-5) in the lower left corner of the printer.

4 Disconnect circuit board wiring harness (A) from power board (1).

5 Disconnect cutter harness (B) from power board (1) if applicable.

6 Remove two screws (2) securing cable guard (3) to printer base.

7 Lift away cable guard (3) and disconnect power supply harness (C).

8 Remove two screws (4) from the exterior back side of printer.

9 Remove one screw (5) from the interior securing power board (1) to the printer housing.

10 Manipulate power board (1) from within the printer.

11 Insert replacement power board (1) into printer housing oriented so that the power recepta-

cle protrudes from the rear.

12 Secure power board (1) to the printer using screw (5) and two screws (4).

13 Connect power supply harness (C) and cover with cable guard (3).

14 Secure cable guard (3) to the printer using two screws (2).

15 Connect cutter harness (B) to power board (1) if applicable.

16 Connect circuit board harness (A) to power board (1).

17 Reconnect power supply cord, test cycle, and reattach housing covers.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover removal.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover installation.

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-6

Figure 7-5, Power Board Replacement

PANEL BOARD REPLACEMENT

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

3 Locate panel board (1, Figure 7-6) mounted to the interior of the front cover.

4 Disconnect wiring harnesses (A), (B), and (C).

5 Remove two screws (2) securing panel board (1) to the printer.

6 Manipulate panel board (1) laterally from within the printer.

7 Insert replacement panel board (1) behind the face cover so that the boards buttons are

aligned with their respective slots in the cover.

8 Connect harnesses (C), (B), and (A).

9 Reconnect power supply cord, test cycle, and reattach housing covers.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover removal.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover installation.

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

PANEL BOARD

LCD

BELT CONFIGURATION

2

3

5

4

A

C

A

B

B

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-7

Figure 7-6, Panel Board Replacement

LCD BOARD REPLACEMENT

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

3 Locate LCD board (1, Figure 7-7) mounted to the interior of the front cover.

4 Disconnect wiring harnesses (A) and (B) from panel board (2).

5 Remove two screws (3) and one plastic washer (4) securing LCD board (1) to the printer.

6 Manipulate LCD board (1) laterally from within the printer.

7 Insert replacement LCD board (1) behind the face cover so that thew LCD is aligned with its

respective slot in the cover.

8 Apply screw (3) into the upper mounting orifice and screw (3) with washer (4) to the lower.

9 Tighten screws (3) securely.

10 Connect LCD wiring harnesses (B) and (A) to panel board (2).

11 Reconnect power supply cord, test cycle, and reattach housing covers.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover removal.

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

PANEL BOARD

LCD

BELT CONFIGURATION

B

C2

A

1

A

B

C

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-8

Figure 7-7, LCD Board Replacement

FUSE REPLACEMENT

The M84Pro Printer has three fuses; one is externally accessible and is wired to the power

supply while the other two are located internally and directly connected to the main circuit board.

There is an additional fuse integrated into the optional cutter assembly which is easily accessible

by opening the cutter attachment.

This procedure will address only the power supply and circuit board fuses.

1 Switch off the printer and disconnect the power supply cord.

2 Unscrew and remove fuse cap (1, Figure 7-8) and fuse (2) located on the rear printer panel.

3 Remove fuse (2) from fuse cap (1) and determine its condition. Replace as required.

4 Open/remove the top, right, and left housing covers.

5 Locate fuses (3) located on main circuit board (4).

6 Manipulate fuses (3) for their contact clips (5) and determine their condition. Replace as

required.

7 Reconnect power supply cord, test cycle, and reattach housing covers.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover removal.

PANEL BOARD

LCD

BELT CONFIGURATION

BOARD

1

A

B

4

3

A

B

IEEE1284 + RS BOARD

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Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-9

Figure 7-8, Fuse Replacement

MOTOR REPLACEMENT

The stepper motor transmits motion to the print mechanism for precise print positioning. The

energized motor provides torque to the label feed roller, the platen roller, the ribbon feed roller,

and the ribbon rewind spindle via a series of toothed timing belts and gears.

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the front, top, right, and left housing covers.

3 Locate motor (1, Figure 7-9) position from the left side of the printer.

4 Remove two screws (2) securing motor (1) to the printer frame.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover removal.

NOTE: The left side of the printer contains the circuit board, power board,

and gear configuration. The motor is located on the lower side of the gear

configuration and the motor’s mounting screws are oriented diagonally from

each other on the upper and lower sides of the motor spindle.

IEEE1284 + RS BOARD

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Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-10

5 Remove belt from the motor shaft and withdraw motor (1) to the media side of the printer.

6 Disconnect wiring harness (3) from motor (1).

7 Remove two screws (4) securing damper (5) and heat plate (6) to motor (1).

8 Lift away damper (5), heat sink (6) and withdraw motor (1) from within the printer frame.

9 Insert the replacement motor (1) within the printer frame under the label ramp.

Figure 7-9, Motor Replacement

NOTE: The damper and heat plate must be removed from the motor for the

motor to be withdrawn from within the printer frame. Likewise, the damper

and heat plate must be mounted to the replacement motor with the motor

positioned within the frame.

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

BOARD

PANEL

LCD

4

5

6

1

3

2

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-11

10 Secure heat plate (6) and damper (5) respectively to motor (1) using two screws (4).

11 Reconnect wiring harness (3) to motor (1).

12 Apply motor (1) against the printer frame oriented so that their mounting orifices are

aligned.

13 Apply drive belt to motor spindle and secure to frame using two screws (2).

14 Adjust belt tension on motor (1) as required in accordance with its relative procedure.

15 Reconnect power supply cord, test cycle, and reattach/close all covers.

PLATEN ROLLER REPLACEMENT

The platen roller is considered to be a high wear component due to its treading against the print

media. This treading contact will eventually wear grooves into the rubber material and negatively

effect print output.

1 Switch off the printer and disconnect the power supply cord.

2 Open or remove the front, top, right, and left housing covers.

3 Remove ribbon and media to provide free access to platen roller (1, Figure 7-10).

4 Loosen or remove screw (2) securing clamp (3) to right roller spindle.

5 Remove e-clip (4) and the outer belt (not shown) from the left roller spindle and pulley (5).

6 Withdraw pulley (5) from left platen roller spindle and inner belt (not shown).

7 Loosen screw and clamp (not shown) on the left end of roller spindle.

8 Withdraw platen roller (1) along with left and right bushings (6) and gear (7) from the printer.

9 Assemble replacement roller as required with gear (7) and bushings (6).

10 Insert the long spindle of platen roller (1) into housing frame so that it protrudes to the drive

side.

11 Allow platen roller (1) to be suspended with its bushings (6) nested on the printer frame.

NOTE: The damper and heat sink require mounting in specific orientation.

Regard Figure 6-9 carefully for the correct orientation.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover installation.

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provide guidance on housing cover, media, and ribbon removal.

NOTE: The bushings must be installed onto the ends of platen roller with

their flanged sides oriented outward. The cog must be installed so its wider

sleeve is oriented outward.

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-12

12 Secure each end of platen roller (1) with clamps (3) and screws (2).

13 Insert pulley (5) onto the left spindle and apply inner belt (not shown).

14 Apply outer belt (not shown) to gear (5) and e-clip (4) to left roller spindle.

15 Adjust belt tension as required in accordance with its relative procedure.

16 Reconnect power supply cord, test cycle, and reattach/close all covers.

Figure 7-10, Platen Roller Replacement

FEED ROLLER REPLACEMENT

The feed roller is considered to be a high wear component due to its treading against the print

media. This treading contact will eventually wear grooves into the rubber material and negatively

effect print output.

1 Switch off the printer and disconnect the power supply cord.

2 Open or remove the top, right, and left housing covers.

3 Remove ribbon and media to provide free access to drive roller (1, Figure 7-11).

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provides guidance on housing cover, media, and ribbon installation.

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provide guidance on housing cover, media, and ribbon removal.

2

3

6

1

6

7

5

4

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-13

Figure 7-11, Feed Roller Replacement

4 Loosen two screws (2) to release belt tension on drive roller (1).

5 Loosen or remove two screws (3) securing clamp (4) to the right end of drive roller (1).

6 Remove e-clip (5) and the outer belt (not shown) from the left end of drive roller (1) and pul-

ley (6).

7 Withdraw pulley (6) from left drive roller spindle and inner belt (not shown).

8 Loosen screw (7) and clamp (8) on the left end of drive roller (1).

9 Withdraw drive roller (1) along with left and right bushings (9) from the printer.

10 Assemble replacement roller as required with bushings (9).

NOTE: The bushings must be installed onto the ends of drive roller with their

flanged sides oriented outward. The pulley must be installed so its wider

sleeve is oriented outward.

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

6

2

7

1

9

8

5

9

4

3

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-14

11 Insert the short spindle of drive roller (1) into housing frame so that it rests on the far side of

the label ramp secure using clamp (4) and two screws (3).

12 Insert clamp (8) onto the left end of drive roller (1) and secure to the frame using screw (7).

13 Insert pulley (6) onto the left end of drive roller (1) and apply inner belt (not shown).

14 Apply outer belt (not shown) to pulley (6) and e-clip (5) to left roller spindle.

15 Adjust belt tension in accordance with its relative procedure in the Adjustment Procedures

section of this manual.

16 Reconnect power supply cord, test cycle, and reattach/close all covers.

TIMING BELT REPLACEMENT

The M84pro Printer utilizes four timing belts coupled with dual action toothed pulleys to provide

drive distribution throughout the assembly. Two belts are configured to transfer torque from the

motor to the label feed roller. A third belt transfers torque from the feed roller to the platen roller.

And the fourth transfers torque from the platen roller to the ribbon rewind spindle. All four

operating in conjunction provide the total drive configuration for the primary machine.

The optional cutter assembly has its own drive mechanism that operates when directed by the

printer, but independently of the printer drive assembly. The cutter drive assembly also

comprises drive belts and pulleys. Those will not be addressed in this procedure.

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

3 Disconnect all wiring harnesses that pose an obstruction to belt removal.

4 Remove two screws (1, Figure 7-12a) securing pulley bracket (2) to the printer frame.

5 Withdraw bracket (2) along with belts (3) and (4) from motor spindle (5) and feed roller pul-

ley (6) respectively.

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provides guidance on housing cover, media, and ribbon installation.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover removal.

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-15

Figure 7-12a, Motor and Feed Belt Replacement

Figure 7-12b, Motor and Feed Belt Replacement

6 Remove e-clip (7, Figure 7-12b), pin (8), and bushing (9) from pulley bracket (2) to free

transition pulley (10), and belts 3, 4.

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

2

1

43

5

6

10

3

4

8

9

2

7

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-16

Figure 7-12c, Platen Roller Belt Replacement

7 Remove screw (11, Figure 7-12c) and loosen screw (12) to free pulley tension bracket (13).

8 Remove platen roller belt (14) and ribbon rewind belt (15) from feed roller pulley (16) and

platen roller pulley (17) respectively.

9 Remove two screws (19, Figure 7-12d) and four screws (20) and withdraw ribbon frame

(21).

10 Remove ribbon rewind belt (15) from ribbon rewind spindle pulley (22).

11 Prepare to replace timing belts (3), (4), (14), and (15).

12 Apply replacement belt (15) to pulley (22) and allow to suspend.

13 Apply ribbon frame (21) to the printer frame and secure using four screws (20) and two

screws (19).

NOTE: Remove e-clips (18) if removal or replacement of pulleys (16) and

(17) is required.

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

15

17

11

14

12

16

13

18

11

13

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-17

Figure 7-12d, Ribbon and Rewind Belt Replacement

14 Apply belt (14, Figure 6-12c) to the large diameter of pulleys (17) and (16).

15 Apply the lower end of belt (15) to the smaller diameter of pulley (17).

16 Apply pulley tension bracket (13) so that its pulley is oriented under the upper span of belt

(14) and secure using screw (11).

17 Manipulate pulley tension bracket (13) so as to apply tension to belt (14) and tighten screw

(12).

18 Apply replacement belts (4, Figure 7-12b) and (3) to pulley (10) and insert into pulley

bracket (2).

19 Apply bushing (9) to pin (8) and insert through bracket (2) and pulley (10) from the rear.

20 Secure pin (8) at the face of bracket (2) using e-clip (7).

21 Apply the free ends of belts (4, Figure 7-12a) and (3) to feed roller pulley (6) and motor

spindle (5) respectively.

22 Secure pulley bracket (2) to printer frame using two screws (1).

23 Adjust belt tension in accordance with its relative procedure in the Adjustment Procedures

section of this manual.

24 Reconnect all wiring harnesses as directed in Figure 7-13.

25 Reconnect power supply cord, test cycle, and reattach/close all covers.

NOTE: Figure 10-1 of the Daigrams & Schematics section provides guidance

on housing cover installation.

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

22

20

15 21 19

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-18

Figure 7-13, Wiring Harness Connection

PRINT HEAD REPLACEMENT

If the print head becomes damaged or wears out, it can be easily removed and replaced without

having to make critical adjustments. Before replacing the print head, check the head counter

values by printing a test pattern.

1 Switch off the printer and disconnect the power supply cord.

2 Open/remove the top, right, and front housing covers.

3 Remove ribbon and media to provide free access to print head (1, Figure 7-14).

4 Turn thumb screw (2) located on the top side print assembly (3) to release print head (1).

5 Disconnect the two wiring harnesses from print head (1) and lift away.

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provides guidance on housing cover, media, and ribbon removal.

NOTE: It is recommended that print head mounting plate (4) be removed

from the damaged print head (1) and saved as a spare. The mounting plate

may be removed by removing two screws (5).

INTERFACE

MAIN CIRCUIT BOARD

DAUGHTER

BOARD

POWER BOARD

BOARD

BELT CONFIGURATION

BELT CONFIGURATION

BELT CONFIGURATION

BELT CONFIGURATION

PANEL BOARD

LCD

B

A

C

A

D

E

D

E

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-19

6 Connect the power harness to the larger connector (6) and the thermal head harness to the

smaller connector (7) of replacement print head (1) with the head oriented downward.

7 Apply print head (1) with mounting plate (4) attached, to lower side of print assembly (3).

8 Secure replacement print head (1) to print assembly using thumb screw (2).

9 Clear the print head counter. Refer to the relative procedure for instructions if required.

10 Reconnect power supply cord, test cycle, and reattach/close all covers.

Figure 7-14, Print Head Replacement

NOTE: When the print head is properly oriented under the print assembly,

two colored alignment dots may be seen through two slots when peering

downward from the top side.

CAUTION: ENSURE THAT THE WIRING HARNESSES ARE ROUTED IN A

MANNER SO AS TO PREVENT PINCHING AND THAT THEY DO NOT

TOUCH THE HEAD OPENING SPRING. ALSO CONFIRM THAT THE HEAD

MAY BE OPENED AND CLOSED WITHOUT RESTRICTION.

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provides guidance on housing cover, media, and ribbon installation.

1

3

2

6

7

5

4

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-20

LABEL-OUT SENSOR SWITCH REPLACEMENT

The label-out sensor switch detects the presence of print media and sends an error signal to the

processor should the absence of print media be detected. The switch is of a simple on/off variety

that is wired. If print media is present it will depress the switch into the closed position. However,

if print media is not present, the switch will not be depressed and the non-depress state is the on

position.

1 Switch off the printer and disconnect the power supply cord.

2 Open or remove the top, left, right, and front housing covers.

3 Remove ribbon and media to provide free access to label-out sensor (1, Figure 7-15).

4 Remove two screws (2), (3), and (4) from side frame (5).

5 Remove one screw (6) from side frame bracket (7) to permit side frame (5) removal.

6 Remove two screws (8) securing label-out sensor switch (1).

Figure 7-15, Label-Out Sensor Switch Replacement

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provides guidance on housing cover, media, and ribbon removal.

2

3

2

8

1

5

4

3

4

3

6

7

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Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-21

7 Disconnect the sensor switch wiring harness from the main circuit board and withdraw

switch (1) from printer.

8 Feed the wiring harness of replacement switch (1) through the slot adjacent to the motor.

9 Apply switch (1) against the printer frame and secure using two screws (8).

10 Connect the wiring harness of replacement label-out sensor switch (1) to the main circuit

board. Refer to Figure 7-16 for guidance.

11 Reconnect power supply cord, test cycle, and reattach/close all covers.

Figure 7-16, Wiring Harness Connection

NOTE: A properly oriented sensor switch will permit its mounting orifices to

align with those of the frame while its contact arm protrudes through the

paper ramp.

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provides guidance on housing cover, media, and ribbon installation.

IEEE1284 + RS BOARD

POWER BOARD

BELT CONFIGURATION

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-22

LABEL POSITION SENSOR REPLACEMENT

1 Switch off the printer and disconnect the power supply cord.

2 Open or remove the top, left, right, and front housing covers.

3 Remove ribbon and media to provide free access to label position sensor (1, Figure 7-17).

Figure 7-17, Label Position Sensor Replacement

4 Remove screw (2) and nylon spacer (3) securing sensor (1) to media sensor guide (4).

5 Disconnect wiring harness of damaged sensor (1) from the main circuit board.

6 Connect the wiring harness of replacement label position sensor (1) to main circuit board.

Refer to Figure 7-18 for guidance.

7 Reconnect power supply cord, test cycle, and reattach/close all covers.

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provides guidance on housing cover, media, and ribbon removal.

NOTE: The sensor is attached to the underside of the sensor guide. The sen-

sor guide is manufactured of black phenolic material and is attached to the

brass auger type spindle.

NOTE: Figures 10-1, 10-2, and 10-3 of the Daigrams & Schematics section

provides guidance on housing cover, media, and ribbon installation.

1

3

2

4

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-23

Figure 7-18, Wiring Harness Connection

RIBBON SENSOR REPLACEMENT

1 Switch off the printer and disconnect the power supply cord.

2 Open or remove the top, left, and right housing covers.

3 Remove ribbon to allow access to ribbon sensor (1, Figure 7-21) and supply assembly (2).

4 Remove screw (3) and screw (4) from ribbon supply assembly (2).

5 Withdraw boss cap (5), two collars (6), ribbon boss (7), another collar (6), and disk plate (8)

from ribbon supply shaft (9) consecutively.

6 Disconnect the wiring harness of ribbon sensor (1) from the main circuit board.

7 Remove screw (10) securing ribbon sensor (1) to printer frame. Lift away sensor (1).

8 Route replacement sensor (1) through printer frame.

9 Secure replacement sensor (1) to printer frame using screw (10).

10 Apply disk plate (8), a collar (6), ribbon boss (7), two additional collars (6), and boss cap (5)

onto ribbon supply shaft (9) and secure with screw (4).

11 Align orifices of boss (7) and shaft (9) and apply screw (3).

12 Connect wiring harness of replacement ribbon sensor (1) to main circuit board. Refer to

Figure 7-22 for guidance.

NOTE: Figures 10-1 and 10-3 of the Daigrams & Schematics section pro-

vides guidance on housing cover and ribbon removal.

IEEE1284 + RS BOARD

BELT CONFIGURATION

1

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-24

13 Install ribbon, restore power, test cycle, and install/close housing covers.

Figure 7-21, Ribbon Sensor Replacement

Figure 7-22, Wiring Harness Connection

NOTE: Figures 10-1 and 10-3 of the Daigrams & Schematics section pro-

vides guidance on housing cover and ribbon installation.

4

5

6

6

7

3

6

9

8

1

10

IEEE1284 + RS BOARD

POWER BOARD

BELT CONFIGURATION

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-25

CUTTER BELT REPLACEMENT

The cutter assembly is an accessory to the printer. As a purchase option, the cutter assembly

may not apply to the printer in question. The cutter assembly mounts to the face of the printer in

place of the standard front cover.

1 Switch off the printer and disconnect the power supply cord.

2 Remove cutter assembly (1, Figure 7-23a) from the printer.

3 Remove two screws (2) securing idle gear bracket (3) and lift away.

4 Withdraw cutter timing belt (4) and motor timing belt (5) from cutter assembly (1).

5 Apply replacement motor belt (5) to motor pulley (6) and idle pulley (7).

6 Apply replacement cutter belt (4) to idle pulley (7) and cutter pulley (8).

7 Apply bracket (3) to the assembly oriented as removed and secure using two screws (2).

8 Prepare to replace o-ring belt (9, Figure 7-23b).

9 Remove two screws (10) and two screws (11) from left and right sides of cutter frame (12).

10 Lift cutter cover (13) away from cutter frame (12).

11 Loosen screws (14), (15), (16), (17), and (18) located on the right side of cutter frame (12)

sufficiently to manipulate the right end of feed roller (19) free.

12 Remove worn o-ring belt (9) from feed roller (19) and stepper motor (20).

13 Apply replacement o-ring belt (9) to feed roller (19) and stepper motor (20).

14 Insert right end of feed roller (19) into cutter frame (12) and tighten screws (18), (17), (16),

(15), and (14).

15 Apply cutter cover (13) to cutter frame (12) and secure with two screws (11) and (10) to the

right and left sides respectively.

16 Re-install the cutter assembly, connect power supply cord, and test cycle.

NOTE: If unsure how to remove the cutter assembly, refer to the Label Cutter

Installation procedure in the Accessories Installation section for guidance.

NOTE: When properly installed, the idle bracket gear will apply tension pres-

sure to the outer surface of the cutter belt.

NOTE: Refer to the Label Cutter Installation procedure in the Accessories

Installation section of this manual for installation guidance.

Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-26

Figure 7-23a, Cutter Belt Replacement

Figure 7-23b, Cutter Belt Replacement

10

3

2

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13

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12

Section 7: Replacement Procedures

M84Pro Service Manual PN: 9001111A Page 7-27

CUTTER CIRCUIT BOARD REPLACEMENT

1 Switch off the printer and disconnect the power supply cord.

2 Remove cutter assembly (1, Figure 7-24) from the printer.

3 Disconnect all wiring harnesses from circuit board (2).

4 Remove two screws (3) from paper guide plate (4).

Figure 7-24, Cutter Circuit Board Replacement

NOTE: If unsure how to remove the cutter assembly, refer to the Label Cutter

Installation procedure in the Accessories Installation section for guidance.

NOTE: The two screws that are to be removed from the paper guide plate are

located on the front side of the cutter along the lower perimeter of the plate.

CAUTION: WHEN THE TWO SCREWS ARE REMOVED FROM THE

PAPER GUIDE PLATE, TWO NYLON SPACERS LOCATED BETWEEN

THE CIRCUIT BOARD AND THE PLATE WILL BE FREED. ENSURE THAT

THE CUTTER ASSEMBLY IS HORIZONTAL WITH THE CIRCUIT BOARD

ORIENTED UPWARD WHEN THE BOARD IS REMOVED TO PREVENT

THEIR LOSS.

1

B

C

8

2

A

7

6

D

5

A

C

B

D

3

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Section 7: Replacement Procedures

M84Pro Service Manual PN 9001111A Page 7-28

5 Remove two nuts (5), lock washers (6), and flat washers (7) from circuit board (2).

6 Manipulate damaged cutter circuit board (2) from cutter assembly (1).

7 Retrieve two nylon spacers (8) from within cutter assembly (1).

8 Apply and hold two screws (3) to paper guide plate (4) from the exterior.

9 Apply a nylon spacer (8) to each screw (3) from the interior.

10 Thread screws (3) into circuit board (2).

11 Apply flat washers (7), lock washers (6), and nuts (5) consecutively to circuit board (2).

12 Connect wiring harnesses to replacement circuit board.

13 Re-install the cutter assembly, connect power supply cord, and test cycle.

CAUTION: IT IS RECOMMENDED THAT STEPS 8 THROUGH 10 BE PER-

FORMED OVER A TABLE. GREAT DEXTERITY IS REQUIRED AND THE

POTENTIAL FOR COMPONENT LOSS IS HIGH.

NOTE: Refer to the Label Cutter Installation procedure in the Accessories

Installation section of this manual for installation guidance.

M84Pro Service Manual PN: 9001111A Page 8-1

8

ADJUSTMENT PROCEDURES

The SATO M84pro Printer incorporates a series of sub-assemblies that, in conjunction, comprise

the total printer assembly. Many of these sub-assemblies are designed to be adjustable to

maintain optimum performance of the printer throughout its life. This service manual section

addresses the proper technique for their adjustment.

It may be necessary to refer to this section following component replacement. Use the relative

procedures in that section to replace the component, test cycle the printer, and then adjust as

necessary in accordance to the relative procedures in this section.

Figure 8-1, Print Defects

NOTE: Refer to Figure 10-6, Print Position Reference and Figures 10-7

through 10-19, Print Operation Sequence in the Diagrams & Schematics

section for additional operational data as deemed necessary.

Section 8: Adjustment Procedures

M84Pro Service Manual PN 9001111A Page 8-2

PRINT HEAD POSITION ALIGNMENT

Print head position has a direct impact on print quality. An improperly aligned print head will

cause the print to be inconsistent across the label. The following procedure will provide guidance

on print head alignment.

Figure 8-2, Print Head Alignment

PRINT DEFECTS RELATIVE PROCEDURE

Print becomes lighter or darker from one side to the other.

This condition is repetitive from label to label.

Print Head Balance Adjustment

Voids in the overall print image. This condition is repetitive

from label to label.

Print Darkness Adjustment

A visible path on the label where print image is missing. The

path will change somewhat from label to label.

Print Head Position Alignment

Platen Roller Adjustment

Ribbon Guide Plate Adjustment

The scales at the lower left and right sides are not equal

distances from the labels lower edge.

Print Head Position Alignment

The lines are not sharp. Print Darkness Adjustment

The image is too light. Print Darkness Adjustment

The image is severely dark. Print Darkness Adjustment

Bar code label has a sharp line where print is missing. Print Darkness Adjustment

The printed position is too far in one direction or another. Print Position Adjustment

Feed Roller Adjustment

Offset Label Stop Position

MEDIA

MEDIA

1

4

5

5

3

3

2

Section 8: Adjustment Procedures

M84Pro Service Manual PN: 9001111A Page 8-3

1 Remove ribbon as applicable to gain access to the top side of print head (1, Figure 8-2).

2 Loosen thumbscrew (2) and two set screws (3).

3 Load printer with media and ribbon as applicable and latch (4) print head (1) closed.

4 Begin continuous printing of self-test labels.

5 Adjust left or right screw/s (5) to manipulate print head (1) as deemed necessary until the

print image is deemed acceptable.

6 Retighten two set screws (3) and thumbscrew (2) to complete the adjustment process.

PRINT HEAD BALANCE ADJUSTMENT

Print quality may be further optimized by the adjustment of the print head balance. When the print

head is balanced, there is equal pressure applied across the print media and platen roller by the

print head. The left side of the print head remains fixed and the right side is adjusted vertically to

obtain balance. To adjust print head balance, follow the instructions below.

1 Visually inspect the condition of the feed and platen rollers and replace as necessary.

2 Adjust the feed roller in accordance with its relative procedure in this manual.

3 Load printer with media and ribbon as applicable.

NOTE: Figure 10-3 in the Diagrams & Schematics section provides guidance

on ribbon removal.

NOTE: Figures 10-2 and 10-3 of the Diagrams & Schematics section

provides guidance on media and ribbon installation.

NOTE: The self-test label identifies if any elements are malfunctional. To the

far right of the Head Check row, OK will be printed if elements are not missing

and NG if any are missing. Begin a troubleshooting process should difficulties

be found. It is recommended that the troubleshooting process begin at the

rear of the printer and work forward.

NOTE: The print speed and darkness should be set so as to assist in

determining if the print image is being improved during alignment. The speed

and darkness settings are identified on the self-test label. Adjust as deemed

necessary.

NOTE: The self-test label provides a scale in the lower right and left corners

to assist in adjustment. The label is properly aligned perpendicular to the

print head when the scale increments are proportionate on each side.

Section 8: Adjustment Procedures

M84Pro Service Manual PN 9001111A Page 8-4

4 Begin continuous printing of self-test labels.

5 Loosen paper guide thumbscrew (1, Figure 8-3) and adjust guide fully outward.

6 Loosen set screw (2) to allow the right side of print head (3) to be adjusted.

7 Manipulate screw (4) to adjust print head (3) while observing scale (5) under latch (6).

8 Retighten set screw (3).

NOTE: Figures 10-2 and 10-3 of the Diagrams & Schematics section

provides guidance on media and ribbon installation.

NOTE: The self-test label identifies if any elements are malfunctional. To the

far right of the Head Check row, OK will be printed if elements are not missing

and NG if any are missing. Begin a troubleshooting process should difficulties

be found. It is recommended that the troubleshooting process begin at the

rear of the printer and work forward.

NOTE: The print speed and darkness should be set so as to assist in

determining if the print image is being improved during alignment. The speed

and darkness settings are identified on the self-test label. Adjust as deemed

necessary.

NOTE: The self-test label provides incremented patterns across its upper

and lower perimeters for adjustment assistance. Observe print quality in

these regions during adjustment.

NOTE: By moving the paper guide away from the label’s edge, it allows the

stock to wander. Observe label movement during the printing and adjustment

process for assistance.

NOTE: The left edge of the ribbon should always cover the label’s left edge

by 1/8 inch.

NOTE: Clockwise screw rotation raises the print head on the right side.

Counter-clockwise rotation conversely lowers the print head.

Section 8: Adjustment Procedures

M84Pro Service Manual PN: 9001111A Page 8-5

Figure 8-3, Print Head Balance Adjustment

RIBBON GUIDE PLATE ADJUSTMENT

Ribbon wrinkling has a negative impact on print quality and should be avoided. If ribbon wrinkling

is observed across the ribbon guide plate, adjustment may be necessary. Before adjusting the

ribbon guide plate, it is recommended that the print head balance be adjusted first, followed by

the guide plate if necessary.

The left side of the ribbon guide plate remains fixed and the right side is adjusted vertically. To

adjust the ribbon guide plate, follow the instructions below.

1 Load printer with media and ribbon as applicable.

2 Connect the power supply cord, restore power, and test cycle.

3 Manually manipulate print head latch (1, Figure 8-4) to open print head (2).

4 Loosen set screw (3) to allow the right side of ribbon guide plate (4) to be adjusted.

5 Manipulate guide plate (4) until the ribbon seems to smooth itself out.

6 Retighten screw (3) to hold that position.

NOTE: Figures 10-2 and 10-3 of the Diagrams & Schematics section

provides guidance on media and ribbon installation.

NOTE: The printer will go into a standby mode when the print head is

opened. It is not necessary to turn the printer off.

MEDIA

MEDIA

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2

5

4

3

1

Section 8: Adjustment Procedures

M84Pro Service Manual PN 9001111A Page 8-6

7 Ensure screw (5) is secure on the left side of guide plate (4).

8 Test cycle and readjust as necessary.

Figure 8-4, Ribbon Guide Plate Adjustment

FEED ROLLER ADJUSTMENT

Feed roller adjustment is used for fine tuning label tracking. By adjusting the pressure between

the upper and lower rollers, the media may be directed through the printer as desired. If mal-

adjusted, the label media will have a tendency to want to track to the left or to right depending on

which side has the greatest pressure.

A properly adjusted upper and lower feed roller assembly will have evenly applied pressure to

each side and be properly aligned. The pressure difference between each side should be 100

grams or less. A tension gauge will be required to measure the tension.

To acquire the desired adjustment; the upper, the lower, or both feed rollers may require

manipulation. Each roller may be adjusted along opposing X and Y axis. Different variations may

be required until the correct adjustment is achieved.

1 Switch the printer off and disconnect the power supply cord.

2 Open the top and right side housing covers.

3 Remove label stock from the printer and leave print head open.

4 Attach a strip of 20mm + wide liner backing paper to the end of the tension gauge.

NOTE: Figures 10-1, 10-2, and 10-3 of the Diagrams & Schematics section

provides guidance on housing cover, media, and ribbon removal.

MEDIA

MEDIA

2

1

5

43

Section 8: Adjustment Procedures

M84Pro Service Manual PN: 9001111A Page 8-7

5 Place the strip between the upper and lower feed rollers on one end and latch media cover.

6 Slowly pull the tension gauge sufficiently enough to take a reading.

7 Repeat steps 5 and 6 for the opposite end of feed roller assemblies.

8 Adjust lower roller (1, Figure 8-5) by slightly loosening two screws (2) securing roller

bracket (3) and adjusting as deemed necessary while observing scale (4).

9 Adjust upper roller (5) by loosening the two lock nuts (6) and adjusting their respective set

screws (7) as deemed necessary. Retighten nuts (6) to secure.

10 Test cycle and readjust as necessary.

Figure 8-5, Feed Roller Adjustment

NOTE: The lower roller may be adjusted by inserting a medium sized

standard screwdriver into the slot located along the lower periphery of the

roller bracket and twisting. The scale is located adjacent to the adjustment

slot.

CAUTION: ONLY ADJUST THE UPPER ROLLER IF IT HAS DEFINATELY

BEEN DETERMINED THAT ADJUSTMENT OF THE LOWER ROLLER

WILL NOT SUFFICE.

NOTE: Each side of the upper roller may be adjusted independently. Only

loosen the lock nut and adjust the set screw on the end of the roller deemed

necessary to adjust.

76,

2

3

1

5

Section 8: Adjustment Procedures

M84Pro Service Manual PN 9001111A Page 8-8

TIMING BELT ADJUSTMENT

The following procedure covers the adjustment of all timing belts within the printer. Not included,

is the adjustment procedure for the optional cutter assembly. However, the adjustment technique

is exactly the same as here. Remove the cutter assembly to gain access to its belts.

1 Switch the printer off and disconnect the power supply cord.

2 Open/remove the top, right, and left housing covers.

3 Loosen two screws (1, Figure 8-6) and manipulate motor (2) as required to tighten motor

belt (3). Retighten screws (1).

Figure 8-6, Tightening Timing Belts

4 Loosen two screws (4) and manipulate bracket (5) as required to tighten feed roller belt (6).

Retighten screws (4).

5 Loosen two screws (7) and manipulate bracket (8) as required to tighten platen roller belt

(9). Retighten screws (7).

NOTE: Figure 10-1 of the Diagrams & Schematics section provides guidance

on housing cover removal.

CAUTION: STEP 6 SHOULD ONLY BE PERFORMED BY FACTORY

PERSONNEL. THIS ADJUSTMENT MAY MAKE MATTERS WORSE BY

AFFECTING RIBBON REWIND ANGLE AND CAUSING RIBBON

WRINKLING.

11

10

12

8

7

7

1

1

3

9

6

4

5

4

2

10

Section 8: Adjustment Procedures

M84Pro Service Manual PN: 9001111A Page 8-9

6 Loosen two screws (10) and manipulate bracket (11) to tighten ribbon rewind belt (12).

Retighten screws (10).

7 Restore power and test cycle to ensure proper function.

8 Close/replace housing covers.

PITCH SENSOR SETUP FOR NOTCH TAGS

The following procedure applies to labels with notches along the left perimeter of the label stock.

Ignore this procedure otherwise.

1 Switch off the printer and disconnect the power supply cord.

2 Remove the front housing cover.

3 Remove e-clip (1, Figure 8-7) from brass sensor adjustment shaft (2) as necessary.

Figure 8-7, Pitch Sensor Assembly

NOTE: The lower roller may be adjusted by inserting a medium sized

standard screwdriver into the slot located along the lower periphery of the

roller bracket and twisting. The scale is located adjacent to the adjustment

slot.

NOTE: Figure 10-1 of the Diagrams & Schematics section provides guidance

on housing cover installation.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover removal.

NOTE: Removal of the e-clip permits the sensor to be adjusted an additional

14mm to the left for tag stock applications.

2

4

3

1

Section 8: Adjustment Procedures

M84Pro Service Manual PN 9001111A Page 8-10

4 Turn the knurled knob of sensor adjustment shaft (2) to laterally adjust sensors (3) and (4).

5 Close/install housing covers.

Figure 8-8, Label Stock Diagram

PRINT POSITION ADJUSTMENT

There are three methods of print position adjustment. Two of the methods allow for coarse

adjustment, and the third permits fine adjustment.

Although there are three methods, only two are recommended for non-SATO personnel. For this

reason, the VR1 potentiometer located on the main circuit board will only be identified here and

not explained.

NOTE: Adjust sensor to align with, and register; the label hole, notch, gap, or

edge as applicable.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover installation.

LABEL

BACKING PAPER INSIDE EDGE LABEL INSIDE EDGE

14MM MINIMUM

DOT COLUMN NUMBER

104MM

3MM

832 1

DIE CUT INTER-LABEL GAP 3MM NOMINAL

EYE-MARK ON BOTTOM OF LINER LABEL

LABEL FEED DIRECTION

LABEL GAP - 17 TO 64MM ADJUSTMENT

EYE-MARK - 7 TO 54MM ADJUSTMENT

Section 8: Adjustment Procedures

M84Pro Service Manual PN: 9001111A Page 8-11

Coarse print position adjustment should be through the software provided with the printer and

fine adjustment should be performed by manually adjusting the PITCH potentiometer located on

the printer front panel cover.

1 Turn OFFSET potentiometer (1, Figure 8-9) located on the front panel to the center

position.

2 Press the FEED key while simultaneously switching on the power switch.

3 When the printer beeps, release the key and observe the LCD.

4 Press the Feed key to display the next screen.

5 Press the LINE key to step to the second digit of the counter to the desired setting.

6 Press the FEED key to test print a label. Press the FEED key again to stop printing.

7 Repeat the above steps as required until the correct setting is achieved.

LABEL GAP SENSOR ADJUSTMENT

This adjustment will require the use of a multimeter and the TP Test Module.

1 Open/remove the top, right, and left housing covers.

2 Turn the VR4 potentiometer fully counter-clockwise.

3 Connect test module (1, Figure 8-9) to main circuit board connector (2).

NOTE: The potentiometer has a scale imprinted on its face. Due to its

size, it may be difficult to see.

Display: “Initializing ROM V00.00.00.00” and “Test Print Mode Configuration”.

Display: “Test Print Size 10CM”.

NOTE: The display will increment one step each time the key is pressed.

NOTE: Figure 10-5, Accessories & Sensors Location; Figure 10-6, Print

Position Reference Diagram; and Figures 10-7 through 10-19, Print

Operation Sequence in the Diagram & Schematics Section provide additional

instruction.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover removal.

Section 8: Adjustment Procedures

M84Pro Service Manual PN 9001111A Page 8-12

4 Turn dial (3) on test module (1) to position number 5.

5 Connect the positive (+) probe of the multimeter to pin SIG (4) on test module (1).

6 Connect the negative (-) probe of the multimeter to pin GND (5) on test module (1).

7 Ensure the millimeter is set for DC voltage reading.

8 Place the label backing only in position to be read by the sensor.

9 Adjust VR4 potentiometer so that the multimeter value is less than 0.5 volts.

10 Replace the label backing with a label in position to be read by the sensor.

11 Regard the millimeter for a value of +1.0 volts more than the prior value read.

12 Repeat steps 8 through 11 until the value is +1.0 volts.

13 Test print labels to ensure proper function.

14 Disconnect test module (1) from main circuit board (2) and replace housing covers.

Figure 8-9, Label Sensor Adjustment

NOTE: Refer to TP Test Module Usage in the Troubleshooting section for

additional instruction on test module use.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover installation.

IEEE1284 + RS BOARD

01

2

8

7

6

54

3

GNDSIG

1A

2A

3A

4A

6B

5B

4B

3B

1B

2B

6A

5A

2

5A

6A

2B

1B

3B

4B

5B

6B

4A

3A

2A

1A

SIG

GND

3

4

5

6

7

8

2

1

0

1

1

3

54

Section 8: Adjustment Procedures

M84Pro Service Manual PN: 9001111A Page 8-13

EYE-MARK SENSOR ADJUSTMENT

This adjustment will require the use of a multimeter and the TP Test Module.

1 Open/remove the top, right, and left housing covers.

2 Turn the VR5 potentiometer fully counter-clockwise.

3 Connect test module (1, Figure 8-9) to main circuit board connector (2).

4 Turn dial (3) on test module (1) to position number 4.

5 Connect the positive (+) probe of the multimeter to pin SIG (4) on test module (1).

6 Connect the negative (-) probe of the multimeter to pin GND (5) on test module (1).

7 Ensure the multimeter is set for DC voltage reading.

8 Place a label without the eye-mark part in position to be read by the sensor.

9 Adjust VR4 potentiometer so that the multimeter value is less than 0.5 volts.

10 Replace the label without the eye-mark with one that has the eye-mark for sensor reading.

11 Regard the millimeter for a value of +1.0 volts more than the prior value read.

12 Repeat steps 8 through 11 until the value is +1.0 volts.

13 Test print labels to ensure proper function.

14 Disconnect test module (1) from main circuit board (2) and replace housing covers.

NOTE: Figure 10-5, Accessories & Sensors Location; Figure 10-6, Print

Position Reference Diagram; and Figures 10-7 through 10-19, Print

Operation Sequence in the Diagram & Schematics Section provide additional

instruction.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover removal.

NOTE: Refer to TP Test Module Usage in the Troubleshooting section for

additional instruction on test module use.

NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance

on housing cover installation.

Section 8: Adjustment Procedures

M84Pro Service Manual PN 9001111A Page 8-14

OFFSET LABEL STOP POSITION ADJUSTMENT

The following procedure provides for fine adjustment of the label stop position for Tear-Off,

Cutter, and Dispense Modes. The Feed/Backfeed is adjusted with the Offset potentiometer

located on the front panel. The Offset adjustment range is +/- 3.75 mm.

1 Turn the OFFSET potentiometer to the center position.

2 Press and hold the FEED key while switching on the printer.

3 When the printer beeps, release the FEED key.

4 Press the FEED key to advance to the next screen.

5 Press the LINE key to advance the counter to the desired setting.

6 Press the FEED key to begin test printing. Press the FEED key again to stop test printing.

7 Readjust the OFFSET potentiometer as necessary until proper positioning is achieved.

LCD DISPLAY ADJUSTMENT

This procedure allows illumination intensity adjustment of the LCD display. Adjustment is

performed by use of the DISPLAY potentiometer located on the Operator Panel of the front

housing cover.

1 Turn on the printer.

2 Confirm that the LCD is illuminated and a message is displayed.

3 Adjust the DISPLAY potentiometer as necessary achieved the desired setting.

NOTE: Figure 10-5, Accessories & Sensors Location; Figure 10-6, Print

Position Reference Diagram; and Figures 10-7 through 10-19, Print

Operation Sequence in the Diagram & Schematics Section provide additional

instruction.

NOTE: Only the stop position is changed with the Offset potentiometer. The

print position is changed using the Pitch potentiometer.

NOTE: The Offset potentiometer is located on the Operator Panel of the front

housing cover.

LCD DISPLAY: INITIALIZING ROM V00.00.00.00

LCD DISPLAY: TEST PRINT MODE

CONFIGURATION

LCD DISPLAY: TEST PRINT SIZE

10CM

Section 8: Adjustment Procedures

M84Pro Service Manual PN: 9001111A Page 8-15

PRINT DARKNESS ADJUSTMENT

Print darkness is adjusted by use of the PRINT potentiometer located on the Operator Panel of

the front housing cover.

1 Turn the PRINT potentiometer to the center position.

2 Turn on the printeries press the LINE key to go off-line.

3 Press the LINE and FEED keys simultaneously.

4 Press the LINE key to advance the cursor to the desired option.

5 Press the FEED key to select the option.

6 Turn the printer off and then on again.

7 Begin printing test labels antedates the PRINT potentiometer as necessary to achieve the

desired results.

LCD DISPLAY: PRINT DARKNESS

1 2 3 4 5

NOTE: It may be necessary to repeat the procedure and selecting a different

print darkness setting from the operator panel.

Section 8: Adjustment Procedures

M84Pro Service Manual PN 9001111A Page 8-16

M84Pro Service Manual PN: 9001111A Page 9-1

9

FACTORY RESETS

This section of the service manual covers instructions on how to return the printer to its factory

settings. The instructions are separated into differing categories of interest.

FACTORY SETTINGS / TEST PRINT

1 Record all dip switch positions.

2 Place all dip switches in the OFF position.

3 Place the DSW2-4 in the ON position.

4 Simultaneously, press and hold the LINE and FEED keys while turning on the power switch.

5 Release the LINE and FEED keys upon hearing a beep.

6 Place the DSW2-4 in the Off position.

7 Press the FEED key to display the next screen.

8 Press the LINE key once to change the message from NONE to ALL.

9 Press the FEED key to clear the EEPROM.

10 Select the print label size by pressing the LINE key.

CAUTION: RESETTING THE PRINTER WILL CLEAR ALL REGISTERS.

LCD DISPLAY: INITIALIZING ROM V00.00.00.00

MAINTENANCE MODE DIPSW2-4 ON->OFF

LCD DISPLAY: FACTORY MODE

LCD DISPLAY: COUNTER CLEAR - NONE

LCD DISPLAY: COUNTER CLEAR - ALL

LCD DISPLAY: PRINT SIZE

SMALL LARGE

NOTE: The default selection is large. The LINE key allows scrolling from one

option to another.

Section 9: Factory Resets

M84Pro Service Manual PN: 9001111A Page 9-2

11 Press the FEED key to test print. Press the FEED key again to stop printing.

12 Verify that the counters on the test print have reset to 0.0 km.

13 Power Off the printer and confirm that all switches are in the Off or down position.

CLEAR HEAD COUNTERS

1 Record all dip switch positions.

2 Place all dip switches in the Off position.

3 Place the DSW2-4 switch in the On or up position.

4 Simultaneously, press and hold the LINE and FEED keys while turning on the power switch.

5 Release the LINE and FEED keys upon hearing a beep.

6 Place the DSW2-4 in the Off position.

7 Press the FEED key to display the next screen.

8 Press the LINE key twice to change the message from NONE to HEAD.

9 Press the FEED key to clear the head counter.

10 Select the print label size by pressing the LINE key.

WARNING: THIS TEST ACTIVATES ALL THE HEATING ELEMENTS ON

THE PRINT HEAD AND THEREFORE SHOULD BE USED FOR TESTING

PURPOSES ONLY. FULL WIDTH LABELS MUST BE USED TO PREVENT

PRINT HEAD DAMAGE.

CAUTION: RESETTING THE PRINTER WILL CLEAR ALL REGISTERS.

LCD DISPLAY: INITIALIZING ROM V00.00.00.00

MAINTENANCE MODE DIPSW2-4 ON->OFF

LCD DISPLAY: FACTORY MODE

LCD DISPLAY: COUNTER CLEAR - NONE

LCD DISPLAY: COUNTER CLEAR - HEAD

LCD DISPLAY: PRINT SIZE -

SMALL LARGE

Section 9: Factory Resets

M84Pro Service Manual PN 9001111A Page 9-3

11 Press the FEED key to test print. Press the FEED key again to stop printing.

12 Verify that the counters on the test print have reset to 0.0 km.

13 Power Off the printer and confirm that all switches are in the Off or down position.

CLEAR DISPENSER COUNTER

1 Record all dip switch positions.

2 Place all dip switches in the OFF position.

3 Place the DSW2-4 in the ON position.

4 Simultaneously, press and hold the LINE and FEED keys while turning on the power switch.

5 Release the LINE and FEED keys upon hearing a beep.

6 Place the DSW2-4 in the Off position.

7 Press the FEED key to display the next screen.

8 Press the LINE key twice to change the message from NONE to DIS.

9 Press the FEED key to clear the dispenser counter.

10 Select the print label size by pressing the LINE key.

11 Press the FEED key to test print. Press the FEED key again to stop printing.

WARNING: THIS TEST ACTIVATES ALL THE HEATING ELEMENTS ON

THE PRINT HEAD AND THEREFORE SHOULD BE USED FOR TESTING

PURPOSES ONLY. FULL WIDTH LABELS MUST BE USED TO PREVENT

PRINT HEAD DAMAGE.

CAUTION: RESETTING THE PRINTER WILL CLEAR ALL REGISTERS.

LCD DISPLAY: INITIALIZING ROM V00.00.00.00

MAINTENANCE MODE DIPSW2-4 ON->OFF

LCD DISPLAY: FACTORY MODE

LCD DISPLAY: COUNTER CLEAR - NONE

LCD DISPLAY: COUNTER CLEAR - DIS

LCD DISPLAY: PRINT SIZE

SMALL LARGE

NOTE: The default selection is large. The LINE key allows scrolling from one

option to another.

Section 9: Factory Resets

M84Pro Service Manual PN: 9001111A Page 9-4

12 Verify that the counters on the test print have reset to 0.0 km.

13 Power Off the printer and confirm that all switches are in the Off or down position.

CLEAR CUTTER COUNTER

1 Record all dip switch positions.

2 Place all dip switches in the OFF position.

3 Place the DSW2-4 in the ON position.

4 Simultaneously, press and hold the LINE and FEED keys while turning on the power switch.

5 Release the LINE and FEED keys upon hearing a beep.

6 Place the DSW2-4 in the Off position.

7 Press the FEED key to display the next screen.

8 Press the LINE key twice to change the message from NONE to CUT.

9 Press the FEED key to clear the cutter counter.

10 Select the print label size by pressing the LINE key.

11 Press the FEED key to test print. Press the FEED key again to stop printing.

WARNING: THIS TEST ACTIVATES ALL THE HEATING ELEMENTS ON

THE PRINT HEAD AND THEREFORE SHOULD BE USED FOR TESTING

PURPOSES ONLY. FULL WIDTH LABELS MUST BE USED TO PREVENT

PRINT HEAD DAMAGE.

CAUTION: RESETTING THE PRINTER WILL CLEAR ALL REGISTERS.

LCD DISPLAY: INITIALIZING ROM V00.00.00.00

MAINTENANCE MODE DIPSW2-4 ON->OFF

LCD DISPLAY: FACTORY MODE

LCD DISPLAY: COUNTER CLEAR - NONE

LCD DISPLAY: COUNTER CLEAR - CUT

LCD DISPLAY: PRINT SIZE

SMALL LARGE

NOTE: The default selection is large. The LINE key allows scrolling from one

option to another.

Section 9: Factory Resets

M84Pro Service Manual PN 9001111A Page 9-5

12 Verify that the counters on the test print have reset to 0.0 km.

13 Power Off the printer and confirm that all switches are in the Off or down position.

CLEAR EEPROM

1 Record all dip switch positions.

2 Place all dip switches in the OFF position.

3 Place the DSW2-4 in the ON position.

4 Simultaneously, press and hold the LINE and FEED keys while turning on the power switch.

5 Release the LINE and FEED keys upon hearing a beep.

6 Place the DSW2-4 in the Off position.

7 Press the LINE key to display the next screen.

8 Press the FEED key once to display the next screen.

9 Press the FEED key once to display the next screen.

10 Press the LINE key to scroll to YES.

11 Press the FEED key to clear the EEPROM.

12 Power Off the printer and confirm that all switches are in the Off or down position.

WARNING: THIS TEST ACTIVATES ALL THE HEATING ELEMENTS ON

THE PRINT HEAD AND THEREFORE SHOULD BE USED FOR TESTING

PURPOSES ONLY. FULL WIDTH LABELS MUST BE USED TO PREVENT

PRINT HEAD DAMAGE.

CAUTION: RESETTING THE PRINTER WILL CLEAR ALL REGISTERS.

LCD DISPLAY: INITIALIZING ROM V00.00.00.00

MAINTENANCE MODE DIPSW2-4 ON->OFF

LCD DISPLAY: FACTORY MODE

LCD DISPLAY: ALL CLEAR MODE

LCD DISPLAY: ALL CLEAR COUNTER

EEPROM

LCD DISPLAY: COUNTER ALL CLEAR

YES NO

M84Pro Service Manual PN: 9001111A Page 10-1

10

DIAGRAMS & SCHEMATICS

HOUSING COVER REMOVAL & INSTALLATION

Figure, 10-1, Housing Cover Removal & Installation

Screws x2

Screws x2

Screws x2

Screws x4

Screws x1

Section 10: Diagrams & Schematics

M84Pro Service Manual PN: 9001111A Page 10-2

MEDIA LOADING

Figure 10-2, Media Loading

RIBBON LOADING

Figure 10-3, Ribbon Loading

MEDIA

MEDIA

MEDIA

MEDIA

MEDIA

RIBBON

Section 10: Diagrams & Schematics

M84Pro Service Manual PN 9001111A Page 10-3

PAPER SPECIFICATIONS

Figure 10-4, Paper Specifications

3mm

3mm

14mm

1.5mm

La b el Tick et

Paper Feedin g Direction

3mm

14mm

14mm

1.5mm

Section 10: Diagrams & Schematics

M84Pro Service Manual PN: 9001111A Page 10-4

ACCESSORIES & SENSORS LOCATION

Figure 10-5, Accessories & Sensors Location Diagram

Cutter

Tear-Off

Dispenser

Thermal Head

Head Width (112 mm)

Printable Width (104 mm)

Unprintable Area (3.2 mm)

Gap

Eye-Mark

Gap/Eye-Mark

Paper End Switch

11.5 mm

16.0 mm

19.5 mm

49.5 mm

97.0 mm

6

17

54 mm

65 mm

PAPER FEED DIRECTION

Section 10: Diagrams & Schematics

M84Pro Service Manual PN 9001111A Page 10-5

PRINT POSITION REFERENCE DIAGRAM

Figure 10-6, Print Position Reference Diagram

GAP

PAPER FEED DIRECTION

EYE-MARK

LABEL

LABEL LABEL

LABEL

Base Reference

Print Position Base Reference

Print Position

CONTINUOUS PRINTING

TEAR-OFF MODE

Print Position

Base Reference

LABEL

LABEL

LABEL

LABEL

EYE-MARK GAP

Tear-Off Position

Tear-Off Position

Base Reference

Print Position

Print Position

Base Reference

Cut Position

Cut Position

GAP

EYE-MARK

LABEL

LABEL LABEL

LABEL

Base Reference

Print Position

CUTTER MODE

PEEL-OFF MODE

Print Position

Base Reference

LABEL

LABEL

LABEL

LABEL

EYE-MARK GAP

Peel-Off Position Peel-Off Position

Base Reference

Print Position

Section 10: Diagrams & Schematics

M84Pro Service Manual PN: 9001111A Page 10-6

PRINT OPERATION SEQUENCE

CONTINUOUS, PITCH SENSOR ENABLED (HEAD CHECK DISABLED)

Figure 10-7, Operation Sequence Chart

c d e

Head Pitch sensor (gap)

cde f

Print 1st page

Standby

c d ef g

c def g h

Print 2nd page

Print 3rd page

(Note)

Above is the base reference position when the gap sensor is used.

Section 10: Diagrams & Schematics

M84Pro Service Manual PN 9001111A Page 10-7

CONTINUOUS, PITCH SENSOR DISABLED (HEAD CHECK DISABLED)

Figure 10-8, Operation Sequence Chart

c d e

Head Pitch sensor

(g

a

p)

cde f

Print 1st page

+head check

Standby

c d e f g

c d e f g h

Print 2nd page

+head check

Print 3rd page

+head check

(Note)

Above is the base reference

p

osition when the

g

a

p

sensor is used.

Section 10: Diagrams & Schematics

M84Pro Service Manual PN: 9001111A Page 10-8

CONTINUOUS, PITCH SENSOR DISABLED (HEAD CHECK ENABLED)

Figure 10-9, Operation Sequence Chart

After print operation

Before print operation

c d e f

c

d

efg

Paper is transported actual print size portion in vertical direction.

However, if the <EP> command is specified, the paper is transported at the specified vertical paper size portion.

Head

cd e f

g

h

Section 10: Diagrams & Schematics

M84Pro Service Manual PN 9001111A Page 10-9

TEAR-OFF, PITCH SENSOR ENABLED (HEAD CHECK DISABLED)

Figure 10-10, Operation Sequence Chart

c d e

Manual cut Pitch senso

r

(g

a

p)

c

d

e

Backfeed

up to base reference print

p

osition

Standby

c d e

f

c

d

efg

Print 1st page

Print 2nd

p

a

g

e

Head

f

c

d

e f g h

Feed to manual cu

t

p

osition

500 msec passes

(Note)

After printing, if there is no following print data after 500 msec passes, feeds to manual cut position

Above is the base reference position when the gap sensor is used.

Section 10: Diagrams & Schematics

M84Pro Service Manual PN: 9001111A Page 10-10

TEAR-OFF, PITCH SENSOR ENABLED (HEAD CHECK ENABLED)

Figure 10-11, Operation Sequence Chart

Manual cut Pitch sensor

(g

a

p)

cd

e

Back feed

up to base reference print position

Standby

c d e f

cde f g

Print 1st page

Print 2nd

p

a

g

e

Head

c d e

f

c

d

e

f

g h

Feed to manual cu

t

p

osition

500 msec passes

(Note)

After printing, if there is no following print data after 500 msec passes, feeds to manual cut position

Above is the base reference position when the gap sensor is used.

Section 10: Diagrams & Schematics

M84Pro Service Manual PN 9001111A Page 10-11

CUTTER, NO BACKFEED

Figure 10-12, Operation Sequence Chart

c

Cut Pitch sensor (gap)

c d e

Print 1st page

Standby

d e f

Cutter operation

Print 2nd

p

a

g

e

Head

* 1: Because back feed operation is not performed, an unprintable area occurs at the front.

(Note)

Above is the base reference print position when the gap sensor is used.

c

N

ote 1: Unprintable area

d e f

e f g

d

e f g

d

c

c

Cutter operation

Section 10: Diagrams & Schematics

M84Pro Service Manual PN: 9001111A Page 10-12

CUTTER, OPERATION 1

Figure 10-13, Operation Sequence Chart

Cut Pitch sensor

(g

a

p)

cd e

Print 1st page

Standby

Cutter operation

Back feed

Head

d e f

c

d

ef

c

d e f

(Note)

Above is the base reference position when the gap sensor is used.

Section 10: Diagrams & Schematics

M84Pro Service Manual PN 9001111A Page 10-13

CUTTER, NO BACKFEED, EXTERNAL PULSE INPUT

Figure 10-14, Operation Sequence Chart

Cut Pitch sensor (gap)

c d e

Print 1st page

Standby

d e f

Cutter operation

Head

N

ote 1: Because backfeed operation is not performed, an unprintable area occurs at the front.

(Note)

Above is the base reference print position when the gap sensor is used.

c

N

ote 1: Unprintable area

def

c

Print si

g

nal in

p

ut

Section 10: Diagrams & Schematics

M84Pro Service Manual PN: 9001111A Page 10-14

CUTTER, OPERATION 1, EXTERNAL PULSE INPUT

Figure 10-15, Operation Sequence Chart

Cut Pitch sensor

(g

a

p)

c d e

Print 1st page

Standby

Cutter operation

Backfeed

Head

d e f

c

d e f

c

d e f

Print signal input

(Note)

Above is the base reference

p

osition when the

g

a

p

sensor is used.

Section 10: Diagrams & Schematics

M84Pro Service Manual PN 9001111A Page 10-15

PEEL-OFF, PEEL-OFF SENSOR, NO BACKFEED

Figure 10-16, Operation Sequence Chart

Peel-off Pitch sensor

(g

a

p)

Print 1st page

Standby

Head

d e f

c

d e fc g

Note 1: Peel-off senor check

N

ote 2: Unprintable area

Peel-off senso

r

N

ote 1: The peel-off sensor checks the peel-off status of the label, and does not move to the next operation until the label

is peeled.

N

ote 2: Because backfeed operation is not performed, an unprintable area occurs at the front.

(Note)

Above is the base reference position when the gap sensor is used.

Section 10: Diagrams & Schematics

M84Pro Service Manual PN: 9001111A Page 10-16

PEEL-OFF, PEEL-OFF SENSOR, OPERATION 1

Figure 10-17, Operation Sequence Chart

Peel-off Pitch sensor (gap)

Print 1st page

Standby

Head

d e f

c

d e f

c

g

Note 1: Peel-off sensor check

Peel-off sensor

Note 1: The peel-off sensor checks the peel-off status of the label, and does not move to the next operation until the label i

s

peeled.

(Note)

Above is the base reference position when the

g

ap sensor is used.

Note 1: Peel-off sensor check

Label peel-off d e f

c g

d e f g

Backfeed

Section 10: Diagrams & Schematics

M84Pro Service Manual PN 9001111A Page 10-17

PEEL-OFF, EXTERNAL PULSE INPUT, NO BACKFEED

Figure 10-18, Operation Sequence Chart

Peel-off Pitch sensor

(g

a

p)

Print 1st page

Standby

Head

d e f

c

de fc

g

Print signal input

N

ote 1: Unprintable area

N

ote 1: Because backfeed operation is not performed, an unprintable area occurs at the front.

(Note)

Above is the base reference position when the gap sensor is used.

Section 10: Diagrams & Schematics

M84Pro Service Manual PN: 9001111A Page 10-18

PEEL-OFF, EXTERNAL PULSE INPUT, OPERATION 1

Figure 10-19, Operation Sequence Chart

Peel-off Pitch sensor

(g

a

p)

Print 1st page

Standby

Head

d

e

fc

def

c g

Print signal input

Backfeed c d e f g

(Note)

Above is the base reference position when the gap sensor is used.