Bixolon Srp F310 312 Users Manual F310_SVC_Rev_1_00

srpf310312 9581d1fb-cdb3-4b03-aa94-3520f31d83fd BIXOLON Printer SRP-F310/312 User Guide |

2015-02-02

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Service Manual

SRP-F310/312
Front Exit Thermal Printer
Rev. 1.00

http://www.bixolon.com

SRP-F310/312
■ Table of Contents
1. Precaution Segment ...................................................................................................................................4
1-1 Safety Precautions..................................................................................................................................4
1-2 Servicing Precaution...............................................................................................................................5
1-3 Precaution for Electrostatically Sensitive Devices (ESDs) .....................................................................6
1-4 Operational Precautions .........................................................................................................................6
2. Installation and Operation .........................................................................................................................7
2-1 Installation...............................................................................................................................................7
2-1-1 AC Adapter Installation ....................................................................................................................7
2-1-2 Interface Cable Installation ..............................................................................................................7
2-1-3 USB Cable Installation .....................................................................................................................7
2-1-4 Cash Drawer Cable Installation .......................................................................................................7
2-1-5 ETHERNET Cable Installation .........................................................................................................8
2-1-6 Dongle(Usb A-Type) Cable Installation ...........................................................................................8
2-1-7 Cover Open Installation ...................................................................................................................8
2-1-8 Paper Roll Installation ......................................................................................................................8
2-2 Operation ................................................................................................................................................9
2-2-1 Setting the DIP switches ..................................................................................................................9
2-2-2 Setting the DIP switch (RS-232C Serial Interface) ..........................................................................9
2-2-3 Setting the DIP switch (IEEE1284 Parallel, USB Interface) ............................................................9
2-2-4 Hexadecimal Dumping...................................................................................................................10
2-2-5 The self Test Mode ........................................................................................................................10
2-2-6 Setting the Memory Switches ........................................................................................................12
3. Product Specifications.............................................................................................................................15
3-1 Appearance...........................................................................................................................................15
3-1-1 Printer Dimensions (mm) ...............................................................................................................15
3-1-2 AC Adapter Dimensions (mm) .......................................................................................................15
3-1-3 Feature Locations-SRP-F310/312 .................................................................................................16
3-2 General Specifications..........................................................................................................................17
3-3 Thermal Printer Specifications..............................................................................................................18
3-3-1 Printer Specification .......................................................................................................................18
3-3-2 Character Specification..................................................................................................................18
3-3-3 Paper Specification ........................................................................................................................19
3-3-4 Reliability and Environment Specification......................................................................................19
3-3-5 Printable Area ................................................................................................................................20
3-3-6 TPH (Thermal Printer Head) Specification ....................................................................................20
3-3-7 Other Component Specification .....................................................................................................21
3-4 SMPS Specifications ............................................................................................................................22
3-4-1 SMPS (Switching Mode Power Supply) Specification ...................................................................22
3-4-2 SMPS Output Connector ...............................................................................................................22
3-5 Interface Specifications.........................................................................................................................23
3-5-1 RS-232C Serial Interface ...............................................................................................................23
3-5-2 IEEE1284 Parallel Interface...........................................................................................................25
3-5-3 USB2.0 Interface............................................................................................................................27
3-6 Cash Drawer Specifications..................................................................................................................30
3-6-1 Drawer Cable .................................................................................................................................30
3-6-2 Cable Connection ..........................................................................................................................30
3-7 ETHERNET Specifications ...................................................................................................................31
3-7-1 Ethernet..........................................................................................................................................31
3-7-2 WLAN.............................................................................................................................................32

Rev. 1.00

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SRP-F310/312
4. Hardware ...................................................................................................................................................33
4-1 Wiring Diagram .....................................................................................................................................33
4-2 Block Diagram.......................................................................................................................................34
4-3 Special Circuit Descriptions ..................................................................................................................39
4-3-1 Power Circuit..................................................................................................................................39
4-3-2 RESET Circuit ................................................................................................................................40
4-3-3 Buzzer and Cash Drawer Circuits..................................................................................................41
4-3-4 I/F PBA Detect Block Diagram.......................................................................................................42
4-3-5 RS-232C Communication Block Diagram......................................................................................42
4-3-6 Parallel Communication Block Diagram ........................................................................................43
4-3-7 USB Communication Block Diagram .............................................................................................43
4-3-8 DIP Switch Circuit ..........................................................................................................................43
4-3-9 Thermal Printer Head Circuit .........................................................................................................44
5. Disassembly and Assembly ....................................................................................................................45
5-1 Case lower block ..................................................................................................................................45
5-2 Case Upper block .................................................................................................................................48
5-3 Frame block ..........................................................................................................................................51
6. Adjustments and Maintenance................................................................................................................53
6-1 Adjustment ............................................................................................................................................53
6-1-1 Remaining Roll Paper Adjustment.................................................................................................53
6-2 Maintenance .........................................................................................................................................54
7. Troubleshooting .......................................................................................................................................55
7-1 Troubleshooting flow chart....................................................................................................................55
7-1-1 POWER LED does not light ...........................................................................................................56
7-1-2 Paper and Error led blink ...............................................................................................................57
7-1-3 Paper and Error led lit ....................................................................................................................58
7-1-4 Paper led lit ....................................................................................................................................59
7-1-5 Error led blink .................................................................................................................................60
7-1-6 Error led lit......................................................................................................................................61
7-1-7 Self test is not normal ....................................................................................................................62
7-1-8 Data from host is not printed normally ...........................................................................................63
7-2 Power Problem .....................................................................................................................................64
7-2-1 Printing Quality Problems ..............................................................................................................65
7-2-2 Printer Mechanism Problems.........................................................................................................66
7-2-3 Auto Cut Mechanism Problems .....................................................................................................66

Rev. 1.00

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SRP-F310/312

1. Precaution Segment
1-1 Safety Precautions
1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields.
2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices including:
nonmetallic control knobs and compartment covers.
3. Make sure that there are no cabinet openings through which people – particularly children - might
insert fingers and contact dangerous voltages. Such openings include excessively wide cabinet
ventilation slots and improperly fitted covers and drawers.
4. Leakage Current Hot Check:
WARING: Do not use an isolation transformer during this test.
Use a leakage-current tester or a metering system that complies with American National Standards
Institute (ANSI C101.1, Leakage Current for Applications), and Underwriters Laboratories (UL Publications
UL1410, 59.7).
With the unit completely reassembled, plug the AC line cord directly into a 100VAC or 240VAC outlet of the
Adaptor.
With the unit’s AC switch first in the ON position and then OFF, measure the current between a
known Earth ground (metal water pipe, conduit, etc.) and all exposed metal part, including: metal cabinet,
frame, and screw-heads and printer. The current measure should not exceed 0.1 milliamp. Reverse the
power-plug prong in the AC outlet and repeat the test.
5. Design Alteration Warning:
Never alter or add to the mechanical or electrical design of the ECR. Unauthorized alterations might create
a safety hazard. Also any design changes or additions will void the manufacture’s warranty.
6. Components, parts and wiring that appear to have overhead or that are otherwise damaged should be
replaced with parts that meet the original specifications. Always determine the cause of damaged or
overheating and correct any potential hazards.
7. Observe the original lead dress, especially near the following areas: sharp edges, and especially the AC
and high voltage supplies. Always inspect for pinched, out-of-place, or frayed wiring.
Do not change the spacing between components and the printed circuit board. Check the AC power cord
for damage. Make sure that leads and components do not touch thermally hot parts.
8. Product Safety Notice:
Some electrical and mechanical parts have special safety-related characteristics, which might not be
obvious from visual inspection. These safety features and the protection they give might be lost if the
replacement component differs from the original-even if the replacement is rated for higher voltage,
wattage, etc.
Components that are critical for safety are indicated in the circuit diagram by shading, (
)or (
).
Use replacement components that have the same ratings, especially for flame resistance and dielectric
strength specifications. A replacement part that does not have the same safety characteristics as the
original might create shock, fire or other hazards.

Rev. 1.00

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SRP-F310/312
1-2 Servicing Precaution
WARNING 1: First read the Safety Precaution section of this manual. If some unforeseen
circumstance creates a conflict between the servicing and safety precautions,
always follow the safety precaution.
WARNING 2: An electrolytic capacitor installed with the wrong polarity might explode.
1. Always unplug the unit’s AC power cord from the AC power source or the Power Switch off before
attempting to:
(a) Remove or reinstall any component or assembly,
(b) Disconnect an electrical plug or connector,
(c) Connect a test component in parallel with an electrolytic capacitor.
2. Some components are raised above the printed circuit board for safety.
An insulation tube or tape is
sometime used. The internal wiring is sometimes clamped to prevent contact with thermally hot
components. Reinstall all such elements to their original position.
3. After servicing, always check that the screws, components and wiring have been
correctly reinstalled.
Make sure that the portion around the serviced part has not been damaged.
4. Check the insulation between the blades of the AC plug and accessible conductive parts
(example: metal panels and input terminals).
5. Insulation Checking Procedure: Disconnect the power cord from the AC source and
turn the power switch
ON. Connect an insulation resistance meter (500V) to the blades of the AC plug.
The insulation resistance
between each blade of the AC plug and accessible conductive parts (see above) should be
greater than 1 mega-ohm.
6. Never defeat any of the B+ voltage interlock. Do not apply AC power to the unit
(or any of its assemblies)
unless all solid-state heat sinks are correctly installed.
7. Always connect an instrument’s ground lead to the instrument chassis ground before
connecting the positive lead; always remove the instrument’s ground lead last.

Rev. 1.00

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SRP-F310/312
1-3 Precaution for Electrostatically Sensitive Devices (ESDs)
1. Some semiconductor (solid state) devices are easily damaged by static electricity. Such components are
called Electrostatically Sensitive Devices (ESDs); examples include integrated circuits and some field-effect
transistors. The following techniques will reduce the occurrence of component damaged caused by static
electricity.
2. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge
from your body by touching a known earth ground. Alternatively, wear a discharging wrist-strap device.
(Be sure to remove it prior to applying power-this is an Electric shock precaution.)
3. After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to
prevent accumulation of electrostatic charge.
4. Do not use freon-propelled chemical. These can generate electrical charges that damage ESDs.
5. Use only a grounded-tip soldering iron when soldering or unsoldering ESDs.
6. Use only an anti-static solder removal device. Many solder removal devices are not rated as anti-static;
these can accumulate sufficient electrical charge to damage ESDs.
7. Do not remove a replacement ESD from its protective package until you are ready to install it.
Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam,
aluminum foil or other conductive materials.
8. Immediately before removing the protective material from the leads of a replacement ESD, touch the
protective material to the device will be installed.
9. Minimize body motions when handling unpacked replacement ESDs. Motions such as brushing clothes
together, or lifting a foot from a carpeted floor can generate enough static electricity to damaged an ESD.

1-4 Operational Precautions
1. The heating element of the printer mechanism’s thermal head and the driver IC are easily damaged.
Never allow these components to come into contact with metal or other hard objects.
2. Never touch the printer mechanism’s heating element with your hand. Doing so can damage the heating
element and affect proper operation.
3. The head and motor areas are very hot during and immediately after printing. Do not touch components
in these areas directly with your hand.
4. Do not use any paper other than these specified in this manual otherwise print head reliability and print
quality are affected adversely.
5. Thermal paper starts to color at around 70ºC. Take care to protect unused and printed thermal paper
against the affects of heat, light and characters on the paper to feed.
6. Take the roll paper out of the printer when you will not use the printer for a long time in a high
temperature and humidity environment.

Rev. 1.00

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SRP-F310/312

2. Installation and Operation
2-1 Installation
2-1-2 Interface Cable Installation

2-1-1 AC Adapter Installation

Interface Cable

Interface connector

Figure 2-2 I/F Cable Installation

Figure 2-1 AC Adapter Installation
1. Make sure the printer is turned off with the
side of the switch.
2. Plug the power cord into the SMPS
on the printer.
3. Plug the AC Adapter power cord into the wall outlet.

1. Turn off the printer, host ECR and Computer.
2. Plug RS-232, USB or Parallel Cable connector
into the I/F connector on the printer.
3. Tighten the screws on both sides of the connector.
4. Turn on the printer, host ECR and Computer.

2-1-3 USB Cable Installation

2-1-4 Cash Drawer Cable Installation

USB Connector
UAB-B Cable

Figure 2-3 USB B-TYPE Cable Installation

Figure 2-4 Cash Drawer Cable Installation

1. Turn the printer off.
2. Plug USB cable connector into
the connector on the printer.

Rev. 1.00

1. Turn the printer off.
2. Plug the cash drawer cable connector into
the connector on the printer.
(To remove the cash drawer cable, press
the clip on the connector, grasp the connector
and pull it out.)

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SRP-F310/312
2-1-5 ETHERNET Cable Installation

2-1-6 Dongle(Usb A-Type) Cable Installation

Interface Connector

Dongle Cable

Figure 2-5 ETHERNET Cable Installation

Figure 2-6 Dongle Cable Installation

1. Turn the printer off..
2. Plug the ETHERNET Cable into
the connector on the printer.

1. Turn the printer off..
2. Plug the Dongle Cable into
the connector on the printer.

2-1-7 Cover Open Installation

2-1-8 Paper Roll Installation

Figure 2-8 Paper Roll Installation

Figure 2-7 Cover Open Installation
1. Turn the printer off.
2. Push the Cover-open Button

Rev. 1.00

1. Open the cover printer and remove the used
paper roll core if there is one.
2. Load the paper roll on the paper holder as
shown.
3. Close the cover printer.

-8-

SRP-F310/312
2-2 Operation
2-2-1 Setting the DIP switches
The DIP switches are located on the bottom of the printer. The DIP switches are used to set the printer to perform various
functions. Follow these when changing DIP switches setting:
1.
2.

3.

Turn the printer power switch off.
Open the Cover .
Flip the DIP switches using tweezers or another marrow-ended
tool. Switches are in when up and off when off down in the
Figure 2-9.
The new setting takes effect when you turn on the printer.

Note: Always change DIP switch settings only when the
printer is turned off. Change made with the power on
have no effect and then on again.

Figure 2-9 Setting the DIP switches
2-2-2 Setting the DIP switch (RS-232C Serial Interface)
• DIP Switch
SW
Function
1-1
Auto-Cutter Selection
1-2
Handshaking
1-3
Data Length
1-4
Parity Check
1-5
Parity Selection
1-6
Baud Rate Selection (bps)
1-7
1-8

ON
Disable
XON/XOFF
7bits
Yes
EVEN

OFF
Enable
DTR/DSR
8bits
No
ODD

Refer to the following table

Default
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF

2-2-3 Setting the DIP switch (IEEE1284 Parallel, USB Interface)
• DIP Switch
SW
1-1
1-2
~
1-8

Function
Auto-Cutter Selection

ON
Disable

OFF
Enable

Default
OFF

Reserved

-

-

OFF

• Table – Baud rate (bps) Selection
Transmission Speed
2400
4800
9600
19200
38400
57600
115200

SW 1-6
ON
ON
OFF
OFF
OFF
OFF
ON

SW 1-7
OFF
OFF
ON
OFF
ON
OFF
ON

SW 1-8
OFF
ON
OFF
OFF
ON
ON
ON

Default

9600

※ Auto Cutter Enable / Disable selection
SW 1-1
Application

Rev. 1.00

Dip Switch Set 1
ON
Auto Cutter Disabled
OFF
Auto Cutter Enabled
Ignores Auto Cutter error for continuous printing.

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SRP-F310/312
2-2-4 Hexadecimal Dumping
This feature allows experienced users to see exactly what data is coming to the printer. This can be useful in
finding software problems. when you turn on the hexadecimal dump function, the printer prints all commands
and data in hexadecimal format along with a guide section to help you find specific commands.
To use the hexadecimal dump function, follow these steps:
1. After you make sure that the printer is off.
Open the cover.
2. Turn on the printer, while holding down the FEED button with beep.
3. close the cover, then the printer enters the hexadecimal dump mode.
Run any software program that sends data to the printer. The printer will print all the codes it
receives in a two-column format. The first column contains the hexadecimal codes and the second
column gives the ASCII characters that corresponds to the codes.
1B 21 00 1B 26 02 40 40
02 0D 1B 44 0A 14 1E 28
00 01 0A 41 0D 42 0A 43

.!..&@@
...D....(
...A.B.C

Note: A period(.) is printed for each code that no ASCII equivalent.
Note: During the hex dump all commands expect DLE EOT and DLE ENQ are disabled.
4. When the printing finishes, turn off the printer.
5. Turn on the printer and then the hexadecimal model is off.
2-2-5 The self Test Mode
The self-test checks whether the printer has any problem. If the printer does not function properly, contact
your dealer The self-test checks the following:
1. Make sure paper roll ahs been installed properly.
2. Turn on the power while holding down the FEED button with beep. The self-test begins.
3. Tue self-test prints the current printer status, which provides the control ROM version and the DIP
witch setting.
4. After printing the current printer status, self-test printing will print the following and pause (The
PAPER LED light blinds).
SELF-TEST PRINTING.
PLEASE PRESS THE FEED BUTTON.
5. Press the FEED button to continue printing. The printer prints a pattern using the built-in character
set.
6. The self-test automatically ends and cuts the paper after printing the following.
*** COMPLETED ***
The printer is ready to receive data as soon as it completes the self-test.

Rev. 1.00

- 10 -

SRP-F310/312
ASCII
!"#$%&'()*+,-./0123456789:;<=>?@
"#$%&'()*+,-./0123456789:;<=>?@A
#$%&'()*+,-./0123456789:;<=>?@AB
$%&'()*+,-./0123456789:;<=>?@ABC
%&'()*+,-./0123456789:;<=>?@ABCD
&'()*+,-./0123456789:;<=>?@ABCDE
'()*+,-./0123456789:;<=>?@ABCDEF
()*+,-./0123456789:;<=>?@ABCDEFG
) * + , - . / 0 1 2 3 4 5 67 8 9 : ; < = > ? @ A B C D E F G H
*+,-./0123456789:;<=>?@ABCDEFGHI
+,-./0123456789:;<=>?@ABCDEFGHIJ
, -. /0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K
-./0123456789:;<=>?@ABCDEFGHIJKL
./0123456789:;<=>?@ABCDEFGHIJKLM
/0123456789:;<=>?@ABCDEFGHIJKLMN
0123456789:;<=>?@ABCDEFGHIJKLMNO
123456789:;<=>?@ABCDEFGHIJKLMNOP
23456789:;<=>?@ABCDEFGHIJKLMNOPQ
3456789:;<=>?@ABCDEFGHIJKLMNOPQR
456789:;<=>?@ABCDEFGHIJKLMNOPQRS
56789:;<=>?@ABCDEFGHIJKLMNOPQRST
6789:;<=>?@ABCDEFGHIJKLMNOPQRSTU
789:;<=>?@ABCDEFGHIJKLMNOPQRSTUV
89:;<=>?@ABCDEFGHIJKLMNOPQRSTUVW
9:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWX

SRP-F310 V01.00 STD 010110
================================
FPGA INFORMATION
BOARD VER.: 0x3
PROGRAM VER. : 0x11
DIP SWITCH STATUS
12345678
*
ON:
OFF: ******

*

MEMORY SWITCH STATUS
MSW1 12345678
MSW2 12345678
MSW3 12345678
MSW4 12345678
MSW5 12345678
MSW6 12345678
MSW11 12345678
MSW12 12345678
SERIAL SETTING
BAUD RATE
: 115200 BPS
DATA BITS
: 8 BITS
PARITY CHECK : NONE
STOP BITS
: 1 BIT OR MORE
HANDSHAKING : DTR/DSR

PC437
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ETHERNET SETTING
MAC ADDR: 00:11:22:33:44:55
LAN_DHCP disabled
IP ADDR : 192.168.192.123
NETMASK : 255.255.255.0
GATEWAY : 192.168.192.254
WLAN SETTING
NETWORK: adhoc
AUTH: open
ENCRYPT: none
ESSID: BIXOLON_adhoc
WLAN_DHCP disabled
IPADDR: 192.168.1.1
NETMASK: 255.255.255.0
GATEWAY: 192.168.1.2
BUFFER CAPACITY: 512KBYTES
PRINT DENSITY
LIGHT [ 1 2 3 4 ] DARK
*
SELF-TEST PRINTING
PLEASE PRESS THE FEED BUTTON

Figure 2-10 The Self-Test Sheet

Rev. 1.00

- 11 -

SRP-F310/312
2-2-6 Setting the Memory Switches
This printer has Memory Switch set which is software switches. Memory Switch set has MSW1,
MSW2,MSW3, MSW4, MSW5, MSW6, MSW11, MSW12, Customize value.
Memory Switch setting utility can change the Memory Switch set to ON or OFF as shown in the table below
(default: all OFF):
Settings of the Memory Switch are stored in the NV memory: therefore, even if the printer is turned off, the
settings are maintained.
※ Notes: The Memory Switch is available to be changed by three methods:
- Memory Switch setting utility.
- Control from BXL/POS command.
MSW1
Switch
MSW 1-1
MSW 1-2
MSW 1-3
MSW 1-4~5
MSW 1-6
MSW 1-7
MSW 1-8

Function
Select Print Speed

Refer to following Table

Select Print Density

Fixed to OFF
Refer to following Table

-MSW 1-1
OFF
ON
OFF
ON

MSW1-6~MSW1-7
MSW 1-7
MSW 1-6
ON
OFF
OFF
ON
OFF
OFF

Rev. 1.00

OFF

--

MSW1-1~MSW1-3
MSW 1-3
MSW 1-2
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON

MSW2
Switch
1
2
3~8

ON

Print speed
Print speed level 4
Print speed level 3
Print speed level 2
Print speed level 1

Print density
Density level 3
Density level 2
Density level 1

Function
Specification for Destination
Reserved
Code Page Selection

Fixed to OFF
Remark
270 mm/s
250 mm/s
230 mm/s
200 mm/s

Remark
Dark
Light(Default)

ON
OFF
Double byte Country
Single byte Country
-Fixed to OFF
Refer to following Table

- 12 -

SRP-F310/312
MSW2-3~MSW2-8
MSW2-8 MSW2-7
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
MSW3
Switch
MSW 3-1
MSW 3-2
MSW 3-3
1~8

Rev. 1.00

MSW2-5
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF

MSW2-4
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF

MSW2-3
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON

Function

Page 0
Page 1
Page 2
Page 3
Page 4
Page 5
Page 16
Page 17
Page 18
Page 19
Page 21
Page 22
Page 23
Page 24
Page 25
Page 26
Page 27
Page 28
Page 29
Page 30
Page 31
Page 32
Page 33
Page 34
Page 35
Page 36
Page 37
Page 38
Page 39
Page 40
Page 41
Page42
Page47

Character Table
437 (USA, Standard Europe)
Katakana
850 (Multilingual)
860 (Portuguese)
863 (Canadian-French)
865 (Nordic)
1252 (Latin I)
866 (Cyrillic #2)
852 (Latin 2)
858 (Euro)
862 (Hebrew DOS code)
864 (Arabic)
Thai42
1253 (Greek)
1254 (Turkish)
1257 (Baltic)
Farsi
1251 (Cyrillic)
737 (Greek)
775 (Baltic)
Thai14
Hebrew Old code
1255 (Hebrew New code)
Thai11
Thai18
855 (Cyrillic)
857 (Turkish)
928 (Greek)
Thai16
1256 (Arabic)
1258 (Vietnam)
Khmer(Cambodia)
1250 (Czech)

ON

Select Emulation

OFF
Refer to following Table

Reserved

MSW3-1~MSW3-3
MSW 3-3
MSW 3-2
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
MSW4
Switch
MSW 4-1
MSW 4-2
MSW 4-3
MSW 4-4
MSW 4-5
MSW 4-6
MSW 4-7
MSW 4-8

MSW2-6
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON

--

MSW 3-1
ON
OFF
ON
OFF

Fixed to OFF

Emulation
Emulation 4
Emulation 3
Emulation 2
Emulation 1

Function
ASCII font selection
Extended font selection

Remark

BXL/POS

ON
Customized font
Customized font

OFF
Resident font
Resident font

Single byte Font Selection

Refer to following Table

Double byte Font selection

Refer to following Table

Reserved

--

- 13 -

Fixed to OFF

SRP-F310/312
MSW\4-3~MSW4-4
MSW 3-4
OFF
OFF
ON

MSW 3-3
OFF
ON
OFF

MSW\4-5~MSW4-7
MSW 4-7
MSW 4-6
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
OFF
MSW5
Switch
MSW 5-1
MSW 5-2
MSW 5-3
MSW 5-4
MSW 5-5
MSW 5-6
MSW 5-7
MSW 5-8
MSW6
Switch
MSW 6-1
MSW 6-2
MSW 6-3
MSW 6-4
MSW 6-5
MSW 6-6
MSW 6-7
MSW 6-8

Single byte Font Selection
Font A
Font B
Font C
MSW 4-5
OFF
ON
OFF
ON
OFF

Double byte font type
KS5601
SHIFT-JIS
BIG5
GB2312
GB18030

Remark
12x24
9x17
9x24
Remark

Function

ON

OFF

Auto cutter function
Reserved
2 color support
Auto Line Feed
Near-End Sensor
Reserved
Reserved
Reserved

Full cutting
-Enable
Enable
Disable
----

Partial cutting
Fixed to OFF
Disable
Disable
Enable
Fixed to OFF
Fixed to OFF
Fixed to OFF

Function
Auto generate pulse to internal
buzzer
Internal buzzer control
Internal buzzer with cash drawer
pulse
Reserved
Offline status condition
Select watermark printing function
Reserved
NearEnd sensor detect signal

ON

OFF

Enable

Disable

Disable

Enable

Enable

Disable

-Pulse mode
Enable
-Enable

Fixed to OFF
Step mode
Disable
Fixed to OFF
Disable

MSW11
Switch
11-1~8

Function
Reserved

ON
--

OFF
Fixed to OFF

MSW12
Switch
12-1~8

Function
Reserved

ON
--

OFF
Fixed to OFF

Rev. 1.00

- 14 -

SRP-F310/312

3. Product Specifications
3-1 Appearance
3-1-1 Printer Dimensions (mm)

SRP-F310/312
Figure 3-1 Printer Dimension
3-1-2 AC Adapter Dimensions (mm)

150mm

31mm
120mm

56mm

Figure 3-2 Adapter Dimension

Rev. 1.00

- 15 -

SRP-F310/312
3-1-3 Feature Locations-SRP-F310/312

1.
2.
3.
4.
5.
6.
7.
8.
9.

10. Paper Sensor Control
11. Auto-Cutter
12A. Parallel interface(IEEE-1284)
12B. Serial interface(RS-232C)
12C. Default interface
13. USB B-TYPE 2.0
14. ETHERNET
15. Dongle
16. ETHERNET, WLAN Reset
17. DK(RJ11)

cover-open
case-lower
function-led
feed-button
Push Button
Power Button
cover Dip Switch
SMPS
TPH

Figure 3-3 Feature Location

Rev. 1.00

- 16 -

SRP-F310/312
3-2 General Specifications
Item
Product

Processor

Memory

Interface Serial
(RS-232C)

Interface Parallel

USB

USB2.0

Printer

Auto Cutter
Power Consumption
Electrical
Condition

AC
Adapter
(SMPS)

Environmen
t Condition

Description

• ST SPEAR-09-B042(ARM926EJ-S core @ 333MHz)
Internal boot ROM Size: 32KBytes
Internal static RAM Size: 8KBytes
• RAM
DDR2 SDRAM: 256Mbits (MT47H16M16BG-3:G)
NAND FLASH: 128Mbits (NAND128W3A2CN6F)
• Flow Control:
1) DTR / DSR (H/W Flow Control)
2) XON / XOFF (S/W Flow Control)
• Baud Rate: 2400 / 4800 / 9600 / 19200 / 38400
/ 57600 / 115200 bps
• Receive Buffer: 4 Kbytes
• Connector: DB25P Female (I/F PBA Side)
• Mode:
1) Forward Mode: Compatibility Mode
2) Reverse Mode: Nibble / Byte Mode
• Connector: 36 Pin Centronics (Ribbon Type)
• Transfer Type: BULK
• Speed: 12 Mbps (Full-Speed)
• Power: Self-Powered
• Transfer Type: BULK
• Speed: 480 Mbps (High-Speed)
• Power: Self-Powered
• Printing Method: Thermal Line Printing
• Printing Speed
1) SRP-F310: Mono 270mm/Sec, 63.82 Line/Sec
2Color 130mm/Sec, 30.73Line/sec
2) SRP-F312: Mono 270mm/Sec, 72 Line/Sec
2Color 130mm/Sec, 34.6Line/sec
• Type: Guillotine
• Cutting Method: 1 Point Partial Cutting
• Approx. 27W (Peak)
• Input: AC 100V ~ 240V, 50Hz/60Hz
• Output: DC 24V±5%, 2.5A
Temperature

• Operating: 0°C ~ +45°C
• Storage: -20°C ~ +60°C

Humidity

• Operating: 10% to 80%
non-condensing
• Storage: 10% to 90%
non-condensing

• Operating: 10,000ft(Max)
• Storage: 10,000ft(Max)
• 3.1 Kg (With Packing)
• 203(W) x 154(D) x 148(H)
Altitude

Weight
Dimensions(mm)

Table 3-1 General Specification

Rev. 1.00

Remark

• SRP-F310/312: Default Communication
• SRP-F310/312P: IEEE1284 Parallel Communication
• SRP-F310/312S: RS-232C Serial Communication

- 17 -

The Flow Control, Baud
Rate, Stop Bit and
Parity Are determined
by DIP S/W position.

SRP-F310/312
3-3 Thermal Printer Specifications
3-3-1 Printer Specification
1) 180dpi
Item

Description

Model

• SRP-F310 (TPH: KRB-72-7TA02-BIX2,KYOCERA CORPORATION)

Print Method

• Thermal Line Printing

Dot Density

• 0.141 mm(7 Dots/mm)

Printing Direction

• Unidirection with friction feed

Printing Width

• 72.2mm, 512 dot Position

Character / Line

• 42 (Font A: 12x24)

Character Spacing

• 0.28mm (0.01) (2 dots) (Font A)
• 0.28mm (0.01) (2 dots) (Font B)

Printing Speed

• Mono Max. 270mm (63.82 Lines/sec, 1/6inch feed)
• 2color Max. 130mm (30.73 Lines/sec, 1/6inch feed)
• Ladder Barcode: Mono 270mm/sec, 2Color 130mm/sec

Paper feeding Speed

• Approx. 270mm/sec

Remark

• 56 (Font B: 9x17 )

Table 3-2 Thermal Printer Specification
2) 203 dpi
Item

Description

Model

• SRP-F312 (TPH: KRC-80-8TA02-BIX2,KYOCERA CORPORATION)

Print Method

• Thermal Line Printing

Dot Density

• 0.125mm(8 Dots/mm)

Printing Direction

• Uni-direction with friction feed

Printing Width

•80.0mm, 640 dot Position

Character / Line

• 48 (Font A: 12x24)

Character Spacing

• 0.25mm (0.01) (2 dots) (Font A)
• 0.25mm (0.01) (2 dots) (Font B)

Printing Speed

• Mono Max. 270mm (72 Lines/sec, 1/7inch feed)
• 2color Max. 130mm (34.6 Lines/sec, 1/7inch feed)
• Ladder Barcode: Mono 270mm/sec, 2Color 130mm/sec

Paper feeding Speed

• Approx. 270mm/sec

Remark

• 64 (Font B: 9x17 )

Table 3-3 Thermal Printer Specification
3-3-2 Character Specification
Item

Description
• Alphanumeric Characters: 95

Number of Character

• Extended Characters: 128 x 34 Page
(Including one space page)
• International Characters: 32

Character Structure

• 12 x 24 (Font A) (Including 2-dot spacing in horizontal)
• 9 x 17 (Font B) (Including 2-dot spacing in horizontal)
Font A is selected as the default
Table 3-4 Thermal Printer Character Specification

Rev. 1.00

- 18 -

Remark

SRP-F310/312
3-3-3 Paper Specification
Item

Description

Paper Type

• Mono:TF50KS-E(Nippon paper)
• 2Color: PB-70(Mitsubishi)

Paper Form

• Paper Roll

Paper Width

• 80mm / 83mm

Paper Roll Size

• Max 105mm(3.26”)

Spool Inside Dia.

• 12mm (0.47)

Spool Outside Dia.

• 18mm (0.71)

Remark

Table 3-5 Thermal Printer Paper Specification
※ Note
* Mono: The Following paper can be used instead of the specified paper above.
TF50KS-E(Paper thickness: 65μm): Nippon Paper industries Co., Ltd.
PD 160R (
“
: 75μm): New Oji Paper Mfg, Co., Ltd.
P350
(
“
: 62μm): Kansaki Specialty Paper, Inc. (USA)
* 2Color: PB-670 (
“
: 75μm): Mitsubishi
PD750R (
“
: 75μm): Oji paper Mfg. Co.,Ltd.

3-3-4 Reliability and Environment Specification
Item

Description

Life

• Mechanism: Monochrome: 20,000,000 Lines
2Color
: 10,000,000 Lines
The reliability values above are assumed When a 15-Line feed
and a 10-Line print repeat alternately
• Head: 1x108 Pulses, Monochrome: 150Km, 2Color: 75Km
• Auto Cutter: 1,800,000 Cut,

MCBF
Environmental
Temperature
Humidity

• Monochrome:70,000,000Lines, 2Color:35,000,000Lines
• Operating: 0°C ~ +45°C
• Storage: -20°C ~ +60°C (Except for Paper)
• Operating: 10% ~ 80% RH(non-condensing)
• Storage: 10% ~ 90% RH(non-condensing)
Table 3-6 Thermal Printer Reliability Specification

Rev. 1.00

- 19 -

Remark

SRP-F310/312
3-3-5 Printable Area
a
b

d

c

e

Figure 3-4 Printable Area
1) 180dpi
Item
Description
a
80±0.5mm(3.15 ±0.0197)
b
0.141 (0.0056 )
c
72.2±0.2mm(2.83 ±0.0079)
d
2.75mm~4.25mm
e
2.75mm~4.25mm
Dots
512
Font 9X17
56 Character
Font 12X24
42 Character
* ‘d’ & ‘e’ position can be shifted while printing according to the paper position.

Remark

2) 203dpi
Item
Description
A
80±0.5mm(3.15 ±0.0197)
B
0.125 (0.0049 )
C
80mm±0.2mm (2.83±0.0079)
D
2.75mm~4.25mm
E
2.75mm~4.25mm
Dots
640
Font 9X17
64 Character
Font 12X24
48 Character
* ‘d’ & ‘e’ position can be shifted while printing according to the paper position.

Remark

3-3-6 TPH (Thermal Printer Head) Specification
1) 180dpi
Item
Heat Element Structure
Number of Heat Element
Heat Element Pitch
Print Width
Average Resistance
Thermister

Description
2 Heaters / Dot
512 Dots
0.141mm/dot, 7Dot/mm (180DPI)
72.2±0.2mm
800Ω ± 3%
1) Resistance R25: 30kΩ ± 5% (At 25℃)
2) B Value: 3950K ± 2%
3) Temperature: - 40℃ ~ +80℃
Table 3-7 TPH Specification

Rev. 1.00

- 20 -

Remark

SRP-F310/312
Item

Maximum

Unit

Print Cycle (S.L.T.)

0.46

ms/Line

Supply Energy

0.20

mJ/Dot

Supply Voltage

24

Substrate Temperature

70

V
℃

Number of heating dots at same time

256

Dots

Logic Supply Voltage (VDD)

3.3

V

Logic Supply Current (IDD)

Conditions
T=25℃
Voltage among the connector terminals
Temperature detected by Thermistor

204
mA
ALL-HIGH
Table 3-8 TPH Maximum Condition (At 25℃)

2) 203dpi
Item
Heat Element Structure
Number of Heat Element
Heat Element Pitch
Print Width
Average Resistance
Thermister

Description
2 Heaters / Dot
640 Dots
0.125mm/dot, 8Dot/mm (203DPI)
80±0.2mm
800Ω ± 3%
1) Resistance R25: 30kΩ ± 5% (At 25℃)
2) B Value: 3950K ± 2%
3) Temperature: - 40℃ ~ +80℃

Remark

Table 3-9 TPH Specification
Item

Maximum

Unit

Conditions

Print Cycle (S.L.T.)

0.42

ml/Line

Supply Energy

0.09

mJ/Dot

Supply Voltage

24

V

Voltage among the connector terminals

Substrate Temperature

70

℃

Temperature detected by Thermistor

Number of heating dots at same time

320

Dots

Logic Supply Voltage (VDD)

3.3

V

Logic Supply Current (IDD)

255

mA

T=25℃

ALL-HIGH

Table 3-10 TPH Maximum Condition (At 25℃)
3-3-7 Other Component Specification
Item

Auto Cutter

Paper Feed Motor

Paper End Sensor
Paper Roll Near End Sensor

Description
• Model: ORC-RWB80 (OHYANE RIKI MFG, Co., Ltd)
• Type: Guillotine Type
• Motor: DC Brush Motor FK-180SH-12280 (Mabuchi Motor)
• Voltage: 24V DC ± 5%(Motor), 5V DC ± 5%(Switch)
• Current: 200mA (Average), 1.5A(Peak)
• Model: STH-39H0001 (SHINANO MOTOR CO, LTD.)
• Type: 2-Phase, Bi-Polar chopper dual,3.75 Step angle
• Voltage: 4.13V ± 10% DC
• Drive Current: 0.7A [PHASE]
• Winding Resistance: 5.9Ω ±10% @ 25℃
• Winding Inductance: 4.2mH ±20% @ 1KHz 1Vrms
• Reflection Type Photo Sensor
• Reflection Type Photo Sensor
Table 3-11 Other Component Specification

Rev. 1.00

- 21 -

Remark

SRP-F310/312
3-4 SMPS Specifications
3-4-1 SMPS (Switching Mode Power Supply) Specification
Item

Description
• Typical: 100V ~ 240V AC
• Min: 90V AC
• Max: 264V ac
• Max: 1.5A (When 120V)
• Max: 30A at 115Vac input Voltage for a cold start at 25℃
ambient conditions
• +24V ±5% @ 0~2.5A Static
• +24V +5/-10% @ 2~6.5A Dynamic
• ±200mV @ 24Vdc
• The power supply shall not be damaged from the condition that
between DC output and DC ground are shorted. An output short
circuit is defined as output impedance of less than 300mΩ for
greater than 1 second. The power supply will operate normally
when this condition is removed promptly within 2 seconds.

Input Voltage
Input Current
Inrush Current Limiting
Load Regulation
Ripple Noise

Short-Circuit Protection

O.V.P
(Over Voltage Protection)

• 26Vdc~30Vdc
• The power supply will be shutdown at an over-temperature
condition. This shutdown shall be cleared by removal of this
abnormal condition and input power recycling.
Table 3-12 Power Adapter (SMPS) Specification

O.T.P
(Over-temperature Protection)

3-4-2 SMPS Output Connector
Pin Number
Signal Name
1
+24 VDC
2
GND
3
N.C
Shield
Frame GND
Table 3-13 Power Connector Pin Description

(a)

(b)

Figure 3-5 SMPS DC Output Connector(a) & Printer Power Connector(b)

Rev. 1.00

- 22 -

Remark

SRP-F310/312
3-5 Interface Specifications
3-5-1 RS-232C Serial Interface
3-5-1(a) Specification
Item
Data Transmission
Synchronization
HandShaking
(Flow Control)
Signal Level
Baud Rate
Data Word Length
Parity
Connector

Description
• Serial
• Asynchronous
• H/W: DTR/DSR
• S/W: XON/XOFF
• Logic1 (MARK): -3V ~ -15V
• Logic0 (SPACE): +3V ~ +15V
• 2400/4800/9600/19200/38400/57600/115200 bps
• 8 bits
• None
• DB25P Female (I/F PBA)
Table 3-14 RS-232C Specification

Remark

XON: ASC Code 11h
XOFF:ASC Code 13h

※ Note: The HandShaking (Flow Control) / Data Word Length / Baud Rate / Parity functions depend on the
DIP Switch settings. Refer to the Operation Manual.
3-5-1(b) RS-232C I/F Cable

Connector: User Spec.
In Case PC: D-SUB25P-Female or D-SUB9P-Female
Figure 3-6 RS-232C Cable

Rev. 1.00

- 23 -

Printer Side: D-SUB25P-Male

SRP-F310/312
3-5-1(c) Cable Connection

PRINTER
SIDE (25P)

HOST
SIDE (25P)

PRINTER
SIDE (25P)

HOST
SIDE (9P)

Figure 3-7 RS-232C Cable Connection
3-5-1(d) Signal Description
Pin No.
1
2
3
4
5

Signal name
FG
TxD
RxD
RTS
CTS

6

DSR

7

SG

20

DTR

Rev. 1.00

Direction
Output
Input
Output
Input

Function
Frame Ground
Transmit Data
Receive Data
Ready To Send
Clear To Send
This signal indicates whether the host computer can receive data.
(H/W flow control)
1) MARK(Logic1): The host can receive a data.
2) SPACE(Logic0): The host can not receive a data.
Input
3) The printer transmits a data to the host, after confirming
this signal.
4) When XON/XOFF flow control is selected, the printer does
not check this signal.
Signal Ground
This signal indicates whether the printer is busy. (H/W flow control)
1) MARK(Logic1): The printer is busy.
2) SPACE(Logic0): The printer is not busy.
Output
3) The host transmits a data to the printer, after confirming
this signal.
4) When XON/XOFF flow control is selected, the host does
not check this signal.
Table 3-15 RS-232C Pin Description

- 24 -

SRP-F310/312
3-5-1(e) H/W Flow Control
When DTR/DSR flow control is select, before transmitting a data, the Printer checks whether the host is
BUSY or not. If the host is BUSY, the Printer does not transmit a data to the host. If the host is not BUSY, the
Printer transmits a data to the Host. The host is the same. Refer to the Interface Part of Chapter 7 (Special
Circuit Diagrams).
3-5-1(f) S/W Flow Control
When XON/XOFF flow control is selected, the printer transmits XON(ACSII 11h) or XOFF(ASCII 13h) signal
through the TXD line.
If the Printer is BUSY, the Printer transmits XOFF(ASCII 13h) to host through the TXD line. Then the host
recognize that the Printer is BUSY. So, the host does not transmit a data to the Printer. If the Printer is
released from BUSY, the Printer transmits XON(ASCII 11h) to host through the TXD line. Then the host
recognize that the Printer is not BUSY. And the host transmit a data to the Printer.
※ Note: Refer to the Operation Manual about XON/XOFF flow control.
3-5-2 IEEE1284 Parallel Interface
Bidirectional parallel interface: in accordance with the IEEE1284 Nibble/Byte mode.
3-5-2(a) Forward Mode Specification (Compatibility mode)
Data transmission from host computer to printer: Centronics compatible
Item
Data Transmission
Synchronization
HandShaking
Signal Level
Connector

Description
• 8-bits Parallel
• External supplied nStrobe signals
• nACK and Busy signals
• TTL compatible
• Centronics 36P
Table 3-16 IEEE1284 Specification

Remark

3-5-2(b) Reverse Mode Specification (Nibble / Byte mode)
Data transmission from the printer to the host computer.
The STATUS data transmission from the printer to the host computer is accomplished in the Nibble or Byte
mode. This mode allows data transmission from the asynchronous printer under the control of the host
computer. Data transmission in the Nibble mode are made via the existing control lines in units of for bits
(Nibble). In the Byte mode, data transmission in accomplished by making the 8-bit data lines bidirectional.
Neither mode can operate at the same time as the compatibility mode, so switching is always required.

Rev. 1.00

- 25 -

SRP-F310/312
3-5-2(c) Signal Specification (Compatibility/Nibble/Byte mode)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19~30
31
32
33
34
35
36

Source
Host
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Host / Printer
Printer
Printer
Printer
Printer
Host

Printer
Host
Printer
Printer
Printer
Host

Compatibility Mode
Nibble Mode
nStrobe
HostClk
Data 0 (LSB)
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7 (MSB)
nAck
PtrClk
Busy
PtrBusy/Data3,7
Perror
AckDataReq /Data2,6
Select
Xflag/Data1,5
nAutoFeed
HostBusy
NC
ND
GND
GND
FG
FG
Logic-H
Logic-H
GND
GND
nlnit
nInit
nFault
nDataAvail /Data0,4
GND
ND
DK_Status
ND
+5V
ND
nSelectln
1284-Active
Table 3-17 IEEE1284 Pin Description

Byte Mode
HostClk
Data 0 (LSB)
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7 (MSB)
PtrClk
PtrBusy
AckDataReq
Xflag
HostBusy
ND
GND
FG
Logic-H
GND
nlnit
nDataAvail
ND
ND
ND
1284-Active

3-5-2(c) IEEE1284 I/F Cable

Host Side: DB25M

Printer Side: CN36M
Figure 3-8 IEEE1284 Cable

Rev. 1.00

- 26 -

SRP-F310/312
3-5-3 USB2.0 Interface
SRP-F310/312 support the USB (Universal Serial Bus) Serial Communication.
3-5-3(a) Specification
Item
Transfer Type
Data Signal
Data Format
Speed
Cable & Connector
Other

Description
• BULK
• Bi-direction, Half-Duplex
• Differential Signal Pair (D+ / D-)
• NRZI Format
• Zero Bit Stuffing after 6 ones
• 480 Mbps
• Cable: 5m / 2m
• Connector: B Type(Device) / A Type(Host)
• Supports the 480 Mbps high-speed mode (HS) for
USB 2.0, as well as the 12 Mbps full-speed (FS) and
the low-speed (LS modes) for USB 1.1
Table 3-18 USB Specification

Remark

3-5-3(b) Signal Description
Pin No.
Shell
1
2
3
4

Signal Name
Shield
VBUS
DD+
GND

Assignment(Color)
Function
Drain Wire
Frame Ground
Red
Host Power: DC5[V] / 500[mA]
White
Differential Data Line
Green
Differential Data Line
Black
Signal Ground
Table 3-19 USB Pin Description

3-5-3(c) Cable
USB cable consists of four conductors, two power conductors, and two signal conductors.
High-/full-speed cable consists of a signaling twisted pair, VBUS, GND, and an overall shield. High-/full
speed cable must be marked to indicate suitability for USB usage. High-/full-speed cable may be used with
either low-speed, full-speed, or high-speed devices. When high-/full-speed cable used with low-speed
devices, the cable must meet all low-speed requirements.
Low-speed recommends, but does not require the use of a cable with twisted signaling conductors.

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Figure 3-9 USB Cable
3-5-4(d) Construction
Raw materials used in the fabrication of this cable must be of such quality that the fabricated cable is
capable of meeting or exceeding the mechanical and electrical performance criteria of the most current USB
Specification revision and all applicable domestic and international safety/testing agency requirements; e.g.,
UL, CSA, BSA, NEC, etc., for electronic signaling and power distribution cables in its category.
American Wire
Gauge (AWG)
28
26
24
22
20

Nominal Conductor
Outer Diameter
0.381 mm (0.015)
0.406 mm (0.016)
0.483 mm (0.019)
0.508 mm (0.020)
0.610 mm (0.024)
0.610 mm (0.024)
0.762 mm (0.030)
0.787 mm (0.031)
0.890 mm (0.035)
0.931 mm (0.037)
Table 3-20 Power Pair

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Stranded Tinned
Conductors
7 x 36
19 x 40
7 x 34
19 x 38
7 x 32
19 x 36
7 x 30
19 x 34
7 x 28
19 x 32

SRP-F310/312
※ Note: Minimum conductor construction must be stranded tinned copper.
To minimize end user termination problems, USB uses a keyed connector protocol. The physical difference
in the Series A and B connectors insures proper end user connectivity. The A connector is the principle
means of connecting USB devices directly to a host or to the downstream port of a hub. All USB devices
must have the standard Series A connector specified in this chapter. The B connector allows device vendors
to provide a standard detachable cable. This facilitates end user cable replacement.
Figure 2-10 illustrates the keyed connector protocol.
Series A Connectors

Series B Connectors

◆Series A plugs are

◆Series B plugs are

always oriented upstream

always oriented downstream towards

towards the Host System

the USB Device

A Plugs

B Plugs

(From the

(From the

USB Device)

Host System)

B Receptacles
(Upstream Input to the

A Receptacles

USB Device or Hub)

(Downstream Output
from the USB Host orHub)

Figure 3-10 Keyed Connector Protocol
The following list explains how the plugs and receptacles can be mated:
• Series “A” receptacle mates with a Series “A” plug. Electrically, Series “A” receptacles function as outputs
from host systems and/or hubs.
• Series “A” plug mates with a Series “A” receptacle. The Series “A” plug always is oriented towards the host
system.
• Series “B” receptacle mates with a Series “B” plug (male). Electrically, Series “B” receptacles function as
inputs to hubs or devices.
• Series “B” plug mates with a Series “B” receptacle. The Series “B” plug is always oriented towards the USB
hub or device.

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SRP-F310/312
3-6 Cash Drawer Specifications
3-6-1 Drawer Cable

Ferrite Core: 1 turn (OP-18E: 18.2 x 12.5 x 25.5)
Figure 3-11 Drawer Cable
3-6-2 Cable Connection
Pin No.
1
2
3
4
5
6

Description
Frame GND
Drawer Kick-Out Driver Signal #1
Drawer Open / Close Signal
+24V
Drawer Kick-Out Driver Signal #2
Signal GND
Table 3-21 Drawer Cable Connection

※ Note: +24V is always output through pin 4 during power on.

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Direction
Output
Input
Output
-

SRP-F310/312
3-7 ETHERNET Specifications
3-7-1 Ethernet
1) Ethernet specifications
Network Interface: 10/100 Base-T All in one type (Auto detection)
[Protocol]
Layer
Network Layers
Transport Layers
Application Layers

Protocol
ARP, IP, ICMP
TCP, UDP
DHCP, DNS, Raw Print, SMTP(notify Printer status)
HTTP, HTTPS(setting), FTP (settings), TELNET (settings)

2) Ethernet cable

3) Ethernet signal descriptions
Pin No.
Signal name
Assignment (Color)
Function
1
TD+
White Orange
Transmit +
2
TDOrange
Transmit 3
TCT
White Green
Receive +
4
NC
Blue
5
NC
White Blue
6
RCT
Green
Receive 7
RD+
White Brown
8
RDBrown
* For more information, refer to the Network User Manual in Bixolon Web Site.
4) Ethernet MAC address
When you open the cover, you can see the 'ethernet MAC address' on the board.

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SRP-F310/312
3-7-2 WLAN
1) WLAN specifications
Support IEEE 802.11b/g Infrastructure, Ad-hoc mode.
Frequency Band and Operating Channels]
Item
Description
Frequency band
2.4000 – 2.497 GHz
Modulation
OFDM with BPSK, QPSK, 16QAM, 64QAM (11g) BPSK, QPSK, CCK (11b)
Data rate
: 54/48/36/24/18/12/11/9/6/5.5/2/1 Mbps auto fallback
[Protocol]
Layer
Network Layers
Transport Layers
Application Layers

Protocol
ARP, IP, ICMP
TCP, UDP
DHCP, DNS, Raw Print, SMTP(notify Printer status)
HTTP, HTTPS(settings), FTP (settings), TELNET (settings)

[Security]
- WEP64/128
- WPA/WPA2(TKIP/AES-CCMP) PSK
- HTTPS(SSL2.0, SSL3.0, TLS1.0)
2) WLAN USB extension cable

3) Compatible WLAN USB adaptor list
SRP-F310/312 is compatible with WLAN USB adaptor using RT73(RT2571W/RT2573/RT2671) chipset.
You can use WLAN printer with WLAN USB adaptor offered by BIXOLON Co.,Ltd. or purchased by
personally.
Tested WLAN USB adaptor list is below.
- CNET CWD-854
- TP-Link TL-WN32G
- D-Link DWA-110
- Buffalo WLI-U2-SG54HP
We recommand using WLAN USB adaptor in a list.
* For more information, refer to the Network User Manual in BIXOLON Co.,Ltd. Web Site.

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4. Hardware
4-1 Wiring Diagram

[Figure 4-1 Board Wiring Diagram]

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4-2 Block Diagram

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SRP-F310/312

[Figure 4-2 Block Diagram]

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SRP-F310/312
4-3 Special Circuit Descriptions
4-3-1 Power Circuit
This system is operated under 100Vac or 240Vac. The power circuit supplies the three differential DC voltage
sources.

[Figure 4-3 Power Block Diagram]
1) Drawer Driving and Feed, Auto Cutter Motor Voltage and TPH Driving Voltage: +24VDC
+24VDC is supplied from SMPS. This Voltage is smoothed by capacitors (CE1).
This voltage is used as a Cash Drawer Solenoid Driving voltage, Step motor driving voltage and a source
voltage of the other voltage sources and TPH Driving Voltage.
2) IEEE1284 Logic IC Driving Voltage: +5VDC
Step down voltage the input +24VDC to +5VDC by a switching regulation U13(A4490SES-T)
3) CPU I/O, FPGA I/O, NAND Flash and etc. LOGIC Voltage: +3.3VDC
Step down voltage the input +5VDC to +3.3VDC by a regulation.U15(SI-3006KWM)
4) CPU A/D, USB core and OSC Voltage: +2.5VDC
Step down voltage the input +24VDC to +2.5VDC by a switching regulation.U13(A4490SES-T)
5) DDR2 Voltage: +1.8VDC
Step down voltage the input +5VDC to +1.8VDC by a regulation.U15(SI-3006KWM)

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SRP-F310/312
6) FPGA core Voltage: +1.5VDC
Step down voltage the input +2.5VDC to +1.5VDC by a regulation.U16(BH15PB1WHFV-TR)
7) CPU core Voltage: +1.2VDC
Step down voltage the input +24VDC to +1.2VDC by a switching regulation.U13(A4490SES-T)
4-3-2 RESET Circuit
Reset signal is signal in order to start-up CPU under Power-on.
Reset circuit uses a reset ASM811REUSF-T(U8). When 3.3Vdc is fallen under 2.7Vdc by Power-off,
reset signal prohibits the system from miss-operating by lowering down to 0V.

[Figure 4-4 Reset Block Diagram]

[Figure 4-5 Reset Waveform]

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4-3-3 Buzzer and Cash Drawer Circuits
1) Buzzer Driving Circuit
The Buzzer is used to inform several kinds of states which occur under system operating and gives some
information to users by controlling the CPU (SPEAr300)

[Figure 4-6 Buzzer Block Diagram]
2) Cash Drawer Driving Circuit
The circuit is used for opening cash drawer and driven by the Q301, Q302(2SD2170). When its state is high
level signal, Q301 or Q302 (2SD2170) drive the solenoid to open the cash drawer. As an optional item, we
provide sensor switch (we call it a compulsory switch) which checks the drawer whether it is opened or not.
This sensor switch turns on for the drawer open condition, and turns off for the other.
※ Caution: Make sure that the Cash Drawer solenoid resistance is more than 20Ω.

[Figure 4-7 Cash Drawer Block Diagram]

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4-3-4 I/F PBA Detect Block Diagram
When the printer is ON, the printer checks what kind of the I/F PBA is installed. After detection, the CPU
specify the I/O port properly. The following is the method of I/F PBA detection.
The I/F PBA has the three return Signal (MD0~2).
The CPU recognize the I/F PBA by the value of the three return signal.
I/F PBA
RS-232C
IEEE1284
No Connection

MD0
L
H
L

MD1
H
L
L

MD2
L
L
L

4-3-5 RS-232C Communication Block Diagram
The CPU is used for serial communication. And also RS-232C Driver (MAX232), is used to serial
communication. Show following block diagram.

[Figure 4-8 RS-232C Communication Block Diagram]

[Figure 4-9 RS-232C Communication Waveform]

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4-3-6 Parallel Communication Block Diagram
The printer support the bidirectional Parallel Interface with Centronics, Nibble, Byte Mode.
The Centronics is Forward and the Nibble, Byte are reverse Mode.

[Figure 4-10 IEEE1284 Communication Block Diagram]
4-3-7 USB Communication Block Diagram
The printer support the USB (Universal Serial Bus). The transfer type of the printer is the BULK.

[Figure 4-11 USB2.0 Communication Block Diagram]
4-3-8 DIP Switch Circuit
The key board circuit consist of the scan signal of 3 lines and the return signal of 2-line. The CPU sends
repeatedly and continuously the scan data DIP_A~DIP. The DIP S/W information input in the return signal if
the specific DIP S/W is ON status during the given time. The CPU reads the data through DIP IN1~IN2 and
analyzes what DIP S/W is ON and performs the selected function.

[Figure 4-12 USB Communication Block Diagram]

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SRP-F310/312
4-3-9 Thermal Printer Head Circuit
First, the CPU sends a Serial Clock and Serial Data 256bits(32Bytes) to the Shift Register of the Thermal
Printer. The Serial Data are stored to each Shift Register in the Thermal Printer. Because the Data#1 Pin and
the Data#2 pin are shorted on Main PCB, the Data(256bits) are stored in both Shift Register#1 and #2.
Second, the CPU send a Latch Signal to the Thermal Printer. Then, the Data of both Shift Register#1 and #2
(256*2=512bits) are moved to the Latch Register. After that, the CPU sends a Strobe Signal to the Thermal
Printer. Then, the Printer outputs the Serial Data. Each Strobe Signal manages the Printer Dot.
STB No.
STB1
STB2

DOT No.
1 ~ 256
257 ~ 512

DOTs/STB
256
256

SRP-F310/312 Strobe Processing
The content of data is same.

CPU
SPEAr300

[Figure 4-13 Thermal Printer Block Diagram]

256 CLK

CLK
DATA#1,2

256bits

256bits

256bits

/LATCH
Printing(1~256)

Printing(1~256)

STROBE1
Printing(257~512)

STROBE2

[Figure 4-14 Thermal Printer Timing Waveform]

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5. Disassembly and Assembly
5-1 Case lower block
1. Remove the ①two screws.
2. Separate the ②COVER DOWN-FRONT

1. Remove the ①two screws.
2. Separate the ②INTERFACE DEFAULT

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SRP-F310/312
1. Separate the ①COVER DIP-SWITCH
form the SRP-F310/312
2. Remove the ②SMPS

1. Remove the ①two screws.
2. Separate the ②ASE LOWER

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SRP-F310/312
1. Separate the ①FPC from MAIN PCB
2. Separate the ②FIVE CONNECTOR
from MAIN PCB

1. Remove the ①four screws.
2. Separate the ②MAIN PCB
from ④BRACKET PCB.
3. Remove the ③two screw.
4. Separate the ④BRACKET PCB
from SRP-F310/312.

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SRP-F310/312
5-2 Case Upper block
1. Remove the ①screw
2. Separate the ②LOCK SPRING,
③SPRING HINGE
3. Remove the ⑥E-Ring.
4. Separate the ⑤SHAFT HINGE
From ④ASS`Y CASE-UPPER

1. Remove ①two screws.
2. Separate the ②ASS`Y TPH
From ASS`Y CASE-UPPER

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SRP-F310/312
1. Remove the ①two screws.
2. Separate the ②CASE UPPER
from the ASSY HOUSING.
3. Separate the ③COVER UP-FRONT
from ②CASE UPPER
4. Remove the ④screw.
5. Separate the ⑤COVER HINGE
from the ASSY HOUSING.

1. Remove the ①four screws.
2. Separate the ②BRACKET HOUSING
from the ASSY HOUSING
3. Separate the ⑥two WASHER
from the ⑤SHAFT HINGE
4. Separate the ⑤SHAFT HINGE and
③BRACKET HOOK and ④SPRING
from the ②BRACKET HOUSING
5. Remove the ⑧screw.
6. Separate the ⑨PCB LED
from the ⑦COVER HOUSING
7. Remove the ⑫⑬FFC,FPC
from the ⑪PCB TPH
8. Remove the ⑩two screws.
9. Separate the ⑪PCB TPH
from the ⑦COVER HOUSING

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SRP-F310/312

1. Remove the ①two screws.
2. Separate the ②GUIDE TPH
from the ASSY TPH
3. Remove the ⑥screw.
4. Separate the ASSY FIXED CUTTER
from the ASSY TPH
5. Remove the ③two screws.

Rev. 1.00

6. Separate the ④CUTTER
from the ⑤GUIDE CUTTER
7. Remove the ⑫SPECIAL SCREW.
8. Separate the ⑪E-RING, ⑩SHAFT TPH
from the ⑦TPH
9. Remove the ⑧SPRING TPH, ⑦TPH
from the ⑨BRACKET TPH

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SRP-F310/312
5-3 Frame block
1. Remove the ①two screws.
2. Separate the ASSY CUTTER
from the FRAME MAIN
3. Remove the ③four screws.
4. Separate the ④AUTO CUTTER
from the ②BRACKET CUTTER

1. Separate the ①PARTITION
from the FRAME MAIN
2. Remover the ③WASHER.
3. Separate the ②SHAFT FEED
from the FRAME MAIN
4. Remover the ④WASHER.
5. Separate the ⑤PUSH BUTTON
And ⑥SPRING LOCK-L
from the FRAME MAIN

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SRP-F310/312
1. Remove the ①four screws.
2. Separate the ②BRACKET MAIN
From the FRAME MAIN
3. Remove the ③screw.
4. Separate the ④COVER OPEN S/W
From the FRAME MAIN
5. Remove the ⑤screw.
6. Separate the ⑥PCB FEED
From the FRAME MAIN
7. Remove the ⑦screw.
8. Separate the ⑧PCB PAPER-END
From the FRAME MAIN

1. Remove the ①screw, And separate
the NEAR END SENSOR from

from the BRACKET MAIN

the BRACKET MAIN.\

9. Remove the ⑪SCREW.

2. Remover the ⑥SCREW.

10. Separate the ⑫ PCB-DK

3. Separate the ③KNOB P-END and

from the BRACKET MAIN

④HOUSING SENSOR from the

11. Remover the⑬ WASHER

②HOUSING P-END

12. Separate the ⑭SHAFT FIX

4. Separate the ⑤PCB SENSOR

13. Remover the ⑮WASHER

from the ④HOUSING SENSOR

14. Separate the ASSY ROLLER

5. Remover the ⑧E-RING

PLATEN from the BRACKET MAIN

6. Separate the ⑦two GEARS

15. Remover the BUSHING

from the BRACKET MAIN

17. Remover the GEAR PLATEN

7. Remove the ⑨two SCREWS

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8. Separate the ⑩MOTOR

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SRP-F310/312

6. Adjustments and Maintenance
6-1 Adjustment
6-1-1 Remaining Roll Paper Adjustment
This sensor is set to the step4 position at the factory. If you find that there is not or too enough paper
remaining on the roll when the near-end sensor is triggered, you can change the setting to the upper or
Lower position as described below.
Note: The factory setting is based on a paper roll core with an outside diameter of 18mm. If you use a paper
roll with a core with an outside diameter of more than 18mm, it is better to change to the upper
position(Rotate the tab at front side) as described below.
1. Open the paper roll cover.
2. Rotate the tab at front or rear Position.

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SRP-F310/312
6-2 Maintenance
Paper dust in the heating elements may lower the print quality.
In this case, clean the print head as follow;
※ Caution: Turn off the printer power before cleaning.
※ Caution: Note that the thermal head (Thermal element and Radiation plate) becomes very hot during
normal operation, creating the danger of burn injury. Be sure to wait for about 10 minutes after
turning printer power off before beginning the cleaning.
1. Open the cover-open.
2. Clean the thermal element (the area that looks like it is marked a thin black line) of the thermal head
with a cotton swab moistened with an alcohol solvent. (ethanol, methanol, or IPA)
3. After confirming that the alcohol solvent has been dried up completely, close the cover open.

Radiation plate

Head tip

Spring pin
Print circuit board
Heat sensitive
layer

Connector

Electrode
Resistor
Board

Base
Protective
layer

※ Note: Never touch the thermal element with your hand.
Doing so can damage the thermal element.
※ Note: Do not scratch the printer head.

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7. Troubleshooting
This chapter describes the methods for troubleshooting in this Receipt Printer.

7-1 Troubleshooting flow chart
If the source of a problem is not clear, use the flowchart below to find and replace a defective component.
Normally, servicing should be performed by component replacement. Repairs of the PCBs and other
components should be performed only by technicians.

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7-1-1 POWER LED does not light

A

Is AC adaptor & power cord
connected properly?

NO

Connect AC adaptor & power cord
properly.
YES

OK?

NO

YES

END

Does AC adaptor have
proper output voltage rating?
(approx. +24V)

NO

Replace AC adaptor.

OK?

NO
YES

YES

END
Has fuse F1 on
main PCB blown?

YES

Replace fuse F1

OK?

NO
NO

YES

END
Is POWER LED
continuity normal?

NO

Replace Operation panel ass’y
YES

OK?

NO

YES

Replace PCB-main ass’y

END

END

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SRP-F310/312
7-1-2 Paper and Error led blink

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SRP-F310/312
7-1-3 Paper and Error led lit

C

Turn power off, then once again

OK?

YES

END

NO

Is paper roll not inserted?

NO

Replace or insert paper roll

YES

OK?

NO

YES

END
Is paper-end sensor,
continuity normal?

NO

Replace Sensor-paper-end ass’y

YES

NO

OK?
YES

END
Replace PCB-main ass’y

END

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SRP-F310/312
7-1-4 Paper led lit

D

Turn power off, then once again

OK?

YES

END

NO

Is paper roll in
paper near-end condition?

NO

Replace or insert paper roll

YES

OK?

NO

YES

END
Is paper near-end sensor
continuity normal?

NO

Replace Sensor-paper-near end ass’y

YES

OK?

NO

YES

END
Replace PCB-main ass’y

END

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SRP-F310/312
7-1-5 Error led blink
E

Turn power off, then once again

OK?

YES

END

NO

Is correct I/F PBA inserted?

NO

Replace I/F PBA

NO

OK?

YES
YES

END
Replace PCB-main ass’y

END

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7-1-6 Error led lit

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7-1-7 Self test is not normal

G

*1
VH : +24V
VCC : +5V

Does not printer
operate at all?

YES

Is output voltage of
regulator on PCB-main
within SPEC?(*1)

NO

Replace PCB-main ass’y

Printing is carried out,
but print quality is deficient or
paper feeding is not normal

YES

Replace printer
mechanism ass’y

Replace printer
mechanism ass’y

NO

YES

END

Replace PCB-main ass’y

END

Rev. 1.00

NO

OK?
YES

END
END

OK?

NO

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SRP-F310/312
7-1-8 Data from host is not printed normally

H

Send data from host to printer

OK?

YES

END

NO

Are interface
parameters set to
identical values at host and
printer?

NO

Make settings identical

OK?

NO

YES

YES

END
Does interface cable
match specifications?

NO

Replace with a proper cable
YES

NO

OK?

Replace interface PCB ass’y

YES

END
OK?

YES

END

NO

Is the interface
wire broken?

YES

Replace the interface cable
NO

OK?

NO

YES

Replace printer mechanism ass’y

END
OK?

YES

NO

Check the host

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SRP-F310/312
7-2 Power Problem
If a problem that can be verified by visual examination has occurred, use the tables below to determine the
cause and perform repairs.
There are four tables, divided by symptom category:
• Printing Quality Problems
• Printer Mechanism Problems
• Auto cutter Mechanism Problems
The tables contains the following columns:
• Problem
This is the symptom that can be verified
• Problem Causes
This is a listing of one or several possible causes that should be examined.
• Level
- Level A
The problem can be corrected by persons who are familiar with the printer and have general knowledge,
but special technical skills are not required.
- Level B
The problem requires thorough knowledge and familiarity with the printer as well as technical skills and
experience.
• Checkpoint
These are one or more areas in the printer that should be checked.
• Action
These are the steps to correct the problem. If the problem persists after taking these steps, check the
other possible causes listed.

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7-2-1 Printing Quality Problems
Problem

Certain parts
are printed
with vertical
white lines

Certain parts
are printed
with vertical
black lines

Horizontal
black lines
are
generated or
the vertical
width of the
characters is
reduced

Overall
printing
density is low

Rev. 1.00

Probable Cause

Level

Checkpoint

Action

Foreign substance on the
head surface

A

Check the foreign
substance on the head
surface

Remove the foreign
substance with a
cleaning pen

Head surface is damaged

B

Check the damage of the
head surface such as dents

Replace the head

Internal IC of the head is
damaged

B

Damage of the internal IC
of the head

Replace the head

Vertical scratched trace on the
paper

A

Check whether there are
obstructions such as
bumps

Remove the
obstructions

Damage to the internal IC of
the head

B

Damage of the internal IC
of the head

Replace the head

Irregular feeding

B

Feeding motor failure

B

Check for damage to the
gears and for foreign
substances in the gear
profile

Check whether the motor
runs smoothly without load
Check whether oil remains
in the bearings holding the
roller

Replace the gears
or remove the
foreign substance

Replace the motor

Add oil for the
bearings

Roller rotation is not smooth

A

Roller and the head are not
attached properly

A

Cover is not completely
closed

Open the cover,
then and
completely close it

The spring pushing the head is
not strong enough

B

Check whether the screws
mounting the spring are
loose

Fasten the screws

Head surface is damaged

B

Check for abrasions on the
head surface

Replace the head

- 65 -

SRP-F310/312
7-2-2 Printer Mechanism Problems
Problem

Probable Cause

Level

Checkpoint
Check for short failure
inside the motor
Check the assembly
status of the washers
holding the gears

Feeding motor failure

B

Gear is dislocated
from the rotating axis

B

Paper jam o

B

Check for paper jam

Auto cutter jam

B

Check for auto cutter jam

Auto cutter jam

B

Check for auto cutter jam

Deformation of Hook

B

Check for deformation of
Hook

Cover Open sensor
failure

B

Check for sensor failure

Replace the sensor
Ass’y

Paper End sensor
failure

B

Check the sensor failure

Replace the sensor
Ass’y

Near End sensor
failure

B

Check for sensor failure

Replace the sensor
Ass’y

Paper feeding failure

Cover cannot be
opened when pressing
the button
Cover cannot be
closed
Error LED is on and
there is a long and
continuous beep sound
while the printer is in
the ready state.
Error LED is on and
there is a short and
continuous beep sound
while the printer is in
the ready state.
Error LED is on and
there is no beep sound
while the printer is in
the ready state.
Joint or bouncing
sound during feeding
operation
Entered characters
and printed characters
are different

Gears are damaged
or are impeded by
foreign substances

B

Check the
communication speed

A

Communication cable
failure

A

Check for damage or
foreign substances on the
gears
Communication speed is
set by DP switches for
Serial Mode
Check RS-232C null
modem
Cable

Action
Replace the motor
Reassemble the
gears and washers
Open the cover,
and then remove
the jammed paper
Open the cover
cutter, and then
restart the printer
Open the cover
cutter, and then
restart the printer
Straighten the
Hook with =pliers

Replace the gears
or remove the
foreign substance
Check the DIP
switch setting
Replace the cable

7-2-3 Auto Cut Mechanism Problems
Problem
Auto cutter
does not
work at all

Rev. 1.00

Probable Cause

Level

Checkpoint

Action

DIP switch setting failure

A

Check whether DIP
switch 1-1 is ON

Change ON to OFF

- 66 -



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