Epson Lq 2550 Quick Reference Guide Product Support Bulletin

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EpsoNAuEmcA,Nc.

EPSON

Product Support Bulletin

Subject: Epson LQ Color Driver for Microsoft Windows 3.0 and 3.1

Date: 4/3/92 PSB No: P-0087

Page(s): 1 of 3

Originator: RSS

The purpose of this bulletin is to announce the availability of an additional color

driver for the LQ-860, LQ-2500, and LQ-2550 for the Microsoft Windows 3.0 and

3.1 environments. This driver is primarily intended to provide Device Independent

Bitmap (DIB) support for Windows based application software. The most popular of

these is Paintbrush which is included with Windows 3.0 and 3.1.

When upgrading to Microsoft Windows version 3.1, it is recommended to use the

Epson driver that is included with that version of Windows. The Microsoft Windows

version 3.1 drivers have DIB support built-in, in addition to new enhancements.

This bulletin also contains information regarding how the driver is being distributed.

In addition, specifications on the color driver and instructions on how to install the

driver into your Windows Package are included.

DISTRIBUTION

The Microsoft Windows LQ Color Driver is available from the following sources:

1)

The driver can be ordered from Accessory Marketing. The part number is

WINCOLOR. To place an order with Accessory Marketing call (800) 922-

8911.

For a limited time the driver is being distributed free of charge.

2) The driver is available from CompuServe. After logging into CompuServe,

to access the Epson Forum, type ‘GO EPSON” at the prompt.

3)

The Epson Bulletin Board is the final means for accessing the driver. The

Epson BBS number for consumers is (310) 782-4531.

SPEClFlCATlONS

The driver consists of 3 files:

GENDRV.DLL, EPSON24C.DRV, and

OEMSETUP.INF.

PSB No: P-0087

Page: 2 of 3

The fonts supported are:

Graphic densities supported:

(Horizontal x Vertical)

Paper Sources:

Cartridge or Optional Fonts:

Paper Size:

Courier, Roman, San Serif, Prestige, Script, OCR-A,

OCR-B, Orator, Orator-S.

360x

180,

180x

180,

120x

180.

Tractor, Bin 1, Bin 2, Manual.

Mu&font

Cartridge

Letter, 8

l/2

x 11 in.

Letter, 11 x 8

l/2

in.

Legal, 8

l/2

x 14 in.

Fanfold, 14

7/8

x 11 in.

Tabloid, 11 x 17 in.

A4,210

x 297 mm

A3,297

x 420 mm

Fanfold, 210 x 305 mm

Fanfold, 358 x 305 mm

#6

envelope, 6

l/2

x 3

5/8

in.

#lO envelope, 9

l/2

x 4

l/8

in.

INSTALLATlON

INSTRUCTlONS

1)

2)

3)

4

5)

6)

7)

Choose Control Panel from the Main Group window in Program Manager.

The Control Panel window appears.

Choose the Printers icon. The Printers dialogue box appears.

Choose the Add Printer button. The dialogue box expands to display a list of

printer-driver files.

Select ‘Unlisted Printer” at the end of the display.

Choose Install.

Select the correct drive and path to find the Windows driver.

Select the ‘EPSON LQ COLOR” and choose OK.

PSB No: P-0087

Page: 3 of 3

8)

Define the new driver as ACTIVE to begin using it immediately.

Refer to the MS Windows User’s Manual for further information about printer-driver

installation.

NOTES

The LQ-2500 is only supported with tractor paper. This is because in single sheet

mode or CSF mode the printer has a large top and bottom non-printable area.

For best results you should print at 360 x 180 DPI for normal printing and 180 x

180 DPI for draft printing.

EPSON

ANEFUCA,

mc.

EPSON

Product Support Bulletin

Subject:

24 Pin Printer Error and Beep Codes

Date: 4/3/91 PSB No: P-0076

Page(s): 1 of 4

Originator JV

Epson printers issue beep tones when certain error conditions exist. Those beeps

can assist you in locating and repairing customer’s printers. The following error

codes are listed by product name.

NOTE:

Most of the beeps issued by the printers are of

.I

second duration with a

.l

second pause between beeps. Where the beeps or the pauses are longer,

it has been noted in the text. The description

“3

Beeps x

2”

means two sets

of three beeps.

LQ-2OO/AP-3000

1 beep: BEL code

1 beep:

A Control Panel setting is accepted.

3 beeps: Paper End detected

5 beeps: Abnormal carriage movement

On-Line light is flashing:

Printhead is over heated. Carriage will stop until

the printhead cools down.

LQ-500.

LQ-510.

LQ-1010.

LQ-850.

LQ-950.

LQ-1050,

Ll

000. AP-4000. AP-4500

1 beep:

BEL code

(.5

set

beep)

1 beep:

A Control Panel setting is accepted

3 beeps: Paper End detected

5 beeps: Abnormal carriage movement

PSB No: P-0076

Page: 2 of 4

LQ-800.

LQ-1

OOd.

L750

1 beep: BEL code

1 beep: A Control Panel setting is accepted

3 beeps: Paper End detected

5 beeps: Abnormal carriage movement

(.5

sec. pause between beeps)

5 beeps:

LQ-860

+35V

supply is abnormal

1 beep: BEL code

(.5

sec. beep)

1 beep: A Control Panel setting is accepted

3 beeps: Paper End detected

5 beeps: Color select mechanism error

(.5

sec. beep,

.5

set

between beeps)

5 beeps: Abnormal carriage movement

(.5

sec. beep,

.5

set

between beeps)

5 beeps:

CG ROM failure

(.5

sec. beep,

.5

set

between beeps)

LQ-1500

1 beep: BEL code

5 beeps: Paper End detected

5 beeps: Abnormal carriage movement

(.5

sec. pause between beeps)

PSB No: P-0076

Page: 3 of 4

LQ-2500

NOTE:

Printers with LCD displays use error messages along with beeps to

inform the user of problems. The following messages will help you to

troubleshoot problems.

A blank LCD screen with the Power-on LED lit can be caused by a bent

pin on one of the

PROMS

or jumper

Jl

may be set incorrectly.

1 beep:

BEL code

5 beeps:

Abnormal

voltage-

5 beeps: Abnormal carriage movement

(.5

sec. pause between beeps)

LQ-2500 LCD Codes:

00 Invalid ID request to CGROM

03 EEROM read/write error

10

LQ-2550

Abnormal carriage movement

1 beep:

BEL code

3 beeps:

Paper End detected

5 beeps: Abnormal carriage movement

(.5

sec. pause between

beeps)

5 beeps: Platen Gap adjustment error

(.5

sec. pause between

beeps)

5 beeps: Case open

L&2550

LCD Codes:

00

(1)

The font could not be found. The printer’s internal program could not

find the target font.

(2)

Missing or damaged 7A ROM

02

Internal ROM check does not match. The versions may have been mixed.

PSB No: P-0076

Page: 4 of 4

LQ-2550 cont.

03

10

11

12

20

A ‘Verify After Write” check to the SRAM has failed. The SRAM could be bad.

This is a motor control error. Four possible areas of failure are:

a. CR home condition not detected at power up

b. Platen gap motor HP not detected correctly

c. Friction/Tractor feed switching error

d. Physical obstruction such as a jammed ribbon

Skewed paper detect error. Since the initial reading upon loading a single

sheet paper, the paper has skewed. This is a printhead wire protection

feature.

Illegal paper positioning.

(1)

If the paper is loaded using the knob instead of the LOAD/EJECT switch,

this error condition will occur. This is a printhead wire protection feature.

(2)

PE sensor may have failed or is not connected.

CPU error. An undefined op-code was detected.

NOTES:

Error codes 11 and 12 are usually caused by new operators who are

un-familiar with the machine. Both of these errors are corrected by

turning the printer off, taking out the paper and turning the printer back

on. Both features were added to ensure proper paper handling and

prevent paper jams, which can result in printhead failures.

Incorrect jumper settings on the ROMA board may cause errors 10 or

20. The correct settings are documented in the Service Manual (page

A-54, figure A-52) and on TIB

LQ2550-005.

Enors

0,2,

3, 10, and 20 may require a repair, adjustment or

replacement.

EPSON

EPSON AMERICA, INC.

INFORMA

Product Support Bulletin

Subject :

LQ - 2550 Error Codes 11 and 12

Date: 4/11/90 PSB No: P-0064

Page: 1 of 1 Originator: ASB

There are two new error codes which can occur in printers with ROM version

022287 or higher.

They are error 11 and error 12.

Error 11 indicates that the paper is not straight.

Error 12 indicates that the paper was loaded using the platen knob instead of the

LOAD/EJECT button.

When these errors occur, the printer stops, the audible alarm sounds, and one

of these two error messages will appear on the front panel.

The solution to both of these errors is the same. Follow the steps below:

1. Turn the printer off.

2. Remove the paper. (Use the platen knob if necessary.)

3. Turn the printer back on.

4. Load the paper using the LOAD/EJECT button as described in the manual.

OR

4.

If you are using a sheet feeder, begin printing again. The printer automatically

loads the paper.

NOTE: Use the platen knob only for removing jammed paper. Never use it when

you are loading paper. Use the LOAD/EJECT button for loading the paper.

EPSON AMERICA, INC.

Product Support Bulletin

Subject:

Power Specifications

Date: 2/7/90 PSB No: P-0060

Page: 1 of 2 Originator: RFB

The following information is a list of the power requirements for

the Epson 9 and 24 pin printers and laser printers.

504

VA maximum

PSB No: P-0060

Page: 2 of 2

Product

1

Voltage

1

Max. Current

Consumption

1

Power Consumption

1

BTU/HR

LX810

1

12ov

.7

Amp

84 VA maximum

I

286.69

T750 120v 1.0

Amp

120

VA

maximum

409.56

TlOOO

120v

.7

Amp 84 VA

maximum

286.69

If the power requirements of a particular Epson printer is not listed please

refer to the appropriate User's Manual for the electrical specifications.

In the event that the User's Manual is not available, locate the silver label

on the back of the Epson printer.

This is a reliable source for the electrical

requirements.

The following formula is used to calculate the electrical

power requirements:

VOLTAMPS

is equivalent to WATTS

VOLTAMPS

= Volts

*

Amps

AMPS

BTU/HR

=

Voltamps/Volts

= Watts

*

3.413

Example:

120V

*

1A

= 120VA

120VA/120V

=

1A

120VA is equivalent to 120W

120W

*

3.413 = 409.56 BTU/HR

Heat output is rated in BTU/HR.

EPSON

EPSON AMERICA, INC.

INFORMATION

Product Support Bulletin

Subject:

LQ - 2550 Selectype Functions

Date: 9/12/89 PSB No: P-0050

Page: 1 of 2 Originator: ML

This describes the Selectype functions in detail. Macros and defaults are

changed in the same manner. This subject is also covered in the User’s

Manual on pages 3 - 12 through 3 - 29 and in the Technical Manual on pages

1 - 30 through 1 - 33.

Selectype Functions

1 Press the “Selectype” button on the front panel.

2The arrows will be flashing and the LCD panel will read “Selectype

Mode”.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

The LCD panel changes to read: “Load Macro”.

Press the Line Feed Button (the flashing down arrow) to reveal on

the LCD panel, “Change Macro”.

To change the macro, press the Load/Eject button to enter the “Change

Macro” mode.

Use the tine Feed button (the flashing down arrow) to select the

function to be changed.

To change the desired function, such as font, pitch, country, etc...,

within the “Change Macro” mode, press the Load/Eject button.

To change the selection of the function, use the Form Feed button (the

flashing up arrow) or the tine Feed button (the flashing down arrow).

Once the desired functions within “Change Macro” are selected, press

the On - tine button.

Press the On - tine button a second time to save the macro.

Wait for the LCD panel to read “Save Macro”.

Press the Load/Eject button to select save.

The LCD panel will then read “Macro #X Saved” momentarily and then

will read “Change Macro”.

Press the “Selectype” button to exit Selectype.

Tips for other Selectype uses

1. When changing the defaults, reset the printer by cycling the

Power switch.

PSB NO: P-0050

Page: 2 of 2

2. Use the above directions for both the “Change Macro” and “Change

Defaults” modes.

3. Use Macro #1 for the settings that are used most often.

4. Set Macros #2- #4 for other needed settings.

5. When a different macro is needed, enter the Selectype and choose

“Load Macro” with the Load/Eject button.

6. Press the tine Feed button (the flashing down arrow) to change the

macro number to load.

EPSON

EPSON AMERICA, INC.

INFORMATION

Product Support Bulletin

.

Subject:

CENTRONICS PARALLEL REQUIREMENTS TO ELIMINATE RANDOM

Date: 7/24/89

Page: 1 of 1 PSB No: P-0048

Originator: ML

The self test can be run in draft mode or Letter Quality mode, depending on

which button is held down as the printer is turned on. With the color ribbon

cartridge installed, the self test prints in seven colors (black, magenta, cyan,

violet, yellow, red, and green).

Some colors require two passes, such as

yellow and blue combined to make green.

When a black ribbon is installed in the LQ-2550 and the self test is run,

some lines of the self test are printed in double-strike mode. The printer is

making the double passes for the color test, leaving a light and dark

appearance to the printout.

The self test cannot detect whether a black or

color ribbon is installed before printing is executed.

The self test can be performed using paper that is at least 8

-

1/2 inches

wide, but wide carriage paper is recommended.

To perform the self test, follow the instructions below:

1. The power cable is connected to a properly grounded electrical outlet.

2. The printer is turned off and the ribbon is installed.

3. While holding down the LINE FEED button (draft mode) or the FORM

FEED button (Letter Quality mode), turn on the printer. The printer will

beep three times and the POWER and PAPER OUT lights will turn on, if

paper is not installed in the printer,

4. Press the PAPER SELECT button until the type of paper desired is

selected.

5. Adjust the tractors or the paper guides to accommodate the size of the

paper being using.

6. Press the LOAD/EJECT button once, to automatically load the paper.

7. Press the ON LINE button, to start the self test.

8. A list of the printer’s current settings is printed first, followed by a series

of characters. The self test continues until the paper runs out or until the

printer is reset.

9. Press the LOAD/EJECT button, to eject the paper, and turn the printer

Off.

10. After the printer is turned off, always wait at least 5 seconds before turning

it back on.

EPSON

EPSON AMERICA, INC.

SERVICE

PRODUCT SUPPORT BULLETIN

PSB N0.:P-0033 DATE: 10/12/88

SUBJECT: THE MOST ASKED LQ-2550 QUESTIONS

PAGE: 1 of 2

Q:

Is there an optional color kit?

A:

No, color is standard.

Q:

How many colors in the ribbon?

A:

The four colors combine to print out 7 different colors.

Color can be set in the macros and other color selection

is software controlled.

Q:

Does the color ribbon come with the printer?

A:

Yes.

Q:

What print driver in my software package, do I choose?

A:

LQ-2500 is the most compatible driver to use.

If that is

not available, any other LQ driver should be compatible. If

there is not-an LQ driver available, then an Epson 9 pin will

work in most text cases.

Q:

If my graphics software package does not support the LQ-2550

or LQ-2500 in color, then which driver should I choose?

Al

Use a JX driver with LQ Patch (made b MAPP Systems,

available through Accessory Marketing

J

for color graphics.

Q:

Does it have foreign characters?

A:

It has all the foreign characters that are present in the

extended IBM character set.

Q:

Does the scanner for the LQ-2500 printer work with the

LQ-2550?

A: No.

Q:

Can the LQ-2500 ribbons be used in the LQ-2550?

A:

NO, the LQ-2500 ribbons cannot be used in the LQ-2550,

but the LQ-2550 ribbons can be used in the LQ-2500.

Q:

How many copies in multi-part forms will it print?

A:

1 original and up to 5 copies, with a maximum paper

thickness of 0.46 mm

(.018").

EPSON AMERICA SERVICE, 23610 TEL0 AVENUE, TORRANCE, CALIF. 90505

NUMBER: No.P-0033

PAGE:

2 of 2

Q:

How do I set the macro defaults when installing an

optional serial (or buffer) interface board?

A:

Set the macro defaults to the parallel interface.

The

optional interface board is enabled by setting the

dip switches on the board to their proper configur-

ations.

Q:

How are the macros and defaults set?

A:

Use the SelecType functions on the front panel.

For

more detailed instructions, refer to the User's Manual

(pages 3-8 to 3-41).

Q:

Do I need a multi-font cartridge?

A:

No, there are 7 fonts + draft built in.

Q:

What options are available for the

LQ-2550?

A:

The following is a list of options for the LQ-2550:

7343-A

Dual Bin Cut Sheet Feeder

7314-A

Pull Tractor

I

7762

I

Black Ribbon

I-

I

7763

I

Color Ribbon

I

I

I

1

I

8148

I

8k Buffer Serial Interface

I

8143

Serial Interface

8172

32k Buffer Centronics

Interface Board

EPSON

EPSON AMERICA, INC.

SERVICE

PRODUCT SUPPORT BULLETIN

PSB NO.:

P-0031

DATE: 10/04/88 PAGE: 1 of 1

SUBJECT: CENTRONICS PARALLEL REQUIREMENTS TO ELIMINATE RANDOM

CHARACTERS USING THE LQ-2500 AND LQ-2550

The purpose of the bulletin is to resolve the problem of random

characters generated by the LQ-2500 and the LQ-2550. We have

received numerous reports from the field regarding this problem.

After intensive testing, the problem was isolated to improper

Centronics parallel cables. The types of problems encountered

were:

(1)

Unsuitable shielding

-

some cable manufactures neglect

to include the twisted pair grounds. The cables

without proper shielding allow electronic fields to

affect the data transfer, thus causing extraneous

characters.

Shielded cables encase the data lines to

protect against external noise.

(2)

Unacceptable use of parallel communications

-

The

recommended length of a parallel cable is 6 to 10 feet

long.

When a parallel cable is longer than 10 feet,

the flow may become inconsistent causing random

characters to be printed. For data transfer over

10 feet in length serial communications is recommended.

If the two issues noted above are corrected, the majority of the

problems regarding random characters should be eliminated.

Proper shielding should always be verified before any other work

is initiated.

Many of the older inexpensive cables were

manufactured without shielding to help keep production costs

down.

The length of a Centronic parallel cable should be kept

to a maximum of 10 feet for optimum performance. For data

transmission over 10 feet in length serial communications is

recommended.

EPSON AMERICA SERVICE, 23610 TEL0 AVENUE, TORRANCE, CALIF, 90505

EPSON

AMERIC&

INC.

EPSON

Product Support Bulletin

Subject: Quick Reference for Current Dot-Matrix Printer Print Speeds

Date: 10/9/92

Page(s): 1 of 1 PSB No: P-0030C

Originator: SLS

9-PIN PRINTERS

/

1%

l%Y

D”:,“n”-“,““c”p4

legal

llLFPI

,

Model

AP-2250 200 CPS 240 CPS n/a

40 CPS

48

CPS

LX-81 0

200 CPS 240 CPS n/a 40

CPS

48

CPS

FX-870/1170

11

285 CPS

1

342 CPS

I

380 CPS

I

57 CPS

I

68 CPS

II

11

DFX-5000

400 CPS 480 CPS

533 CPS 80 CPS

1

96 CPS

1)

DFX-8000

11

800 CPS

1

960 CPS

I

1066 CPS

1

160

CPS

11921

Model

AP-3250

LQ-570/1070

~ LQ-860

LQ-870/1170

~ LQ-2550

240PIN

PRINTERS

Draft

10

CPI Draft

12

CPI

167 CPS

I

200 CPS

210 CPS 252 CPS

246 CPS 295 CPS

275 CPS

1

330 CPS

333 CPS I 400 CPS

High-Speed

Draft 10 CPI

1

lc%Pl

/

IEPI

n/a

1

60 CPS

1

72 CPS

225 CPS

70 CPS 84 CPS

300 CPS 82 CPS

98

CPS

3OOCPS

1

92 CPS

I

IIOCPS

~

n/a

1

111 CPS I

133CPS

GLOSSARY OF TERMS

CPI:

Characters Per Inch

CPS: Characters Per Second

Draft:

Draft uses a minimum number of dots per character for high-speed printing.

Elite:

12 Characters Per Inch (12 CPI)

Pica:

10 Characters Per Inch (10 CPI)

LQ:

Letter Quality reduces the print speed and increases the number of dots per

character to increase the print quality. (24-pin printers only)

NLQ:

Near Letter Quality reduces the print speed and increase the number of dots

per character to increase the print quality. NLQ printing requires two passes

per character. (9-pin printers only)

EPSON AMERICA, INC.

EPSON

Product Support Bulletin

Subject: Quick Reference for 9/24 Pin Printer Paper Specifications

Date: 10/9/92

Page(s): 1 of 1 PSB No: P-0022D

Originator: SLS

This PSB provides a quick reference for the paper specifications on Epson’s current

line of 9-pin and 24-pin dot-matrix printers when using continuous paper. The

‘Maximum No. of Copies” is the maximum allowable number of copies when using

continuous multi-part carbonless paper. The “Total” number is the maximum

allowable number of copies including the original. The ‘Maximum Total Thickness”

is the maximum allowable total thickness including the original plus any copies.

9-PIN PRINTERS

Model

Orig. + Maximum No.

of Copies Total Maximum Total

Thickness

AP-2250 l

1

2

3

I

0.0098”

(0.25mm)

LX-810

3

I

0.0098”

(0.25mm)

1

2

1

3

FX-870/1170

4

I

0.0126”

(0.32mm)

DFX-5000

(Front Tractor)

(Rear Tractor)

1

5

1

36

0.018’

(0.46mm)

4

0.012” (0.30mm)

DFX-8000

(Front Tractor)

(Rear Tractor)

1

5

6

0.018’

(0.46mm)

1

34

0.012” (0.30mm)

24-PIN PRINTERS

Model

Orig. + Maximum No.

Total Maximum Total

of Copies Thickness

AP-3250

*

I

11

I

2

0.0071”

(0.18mm)

LQ-570/1070

I

1

3

I

4

0.0126”

(0.32mm)

LQ-860

I

1

3

I

4

0.0126”

(0.32mm)

LQ-870/1170

I

1

3

I

4

0.0126”

(0.32mm)

LQ-2550

I

1

5

I

6

0.018’

(0.46mm)

* Note:

The AP-2250 and AP-3250 require an optional push tractor to use

continuous paper.

EPSON

EPSON AMERICA, INC.

INFORMATION

Product Support Bulletin

Subject:

Epson Dot - Matrix Printer Options and Accessories

Date: 8/1/89

Page: 1 of 2 PSB No: P-0017B

Originator: RFA

9 - PIN DOT MATRIX OPTIONS

U-810 FX-850

FX-1050

DFX-5000

TRACTOR UNITS

PULL TRACTOR c8ooo61

7311 -A 7312-A

8309-A

CUT SHEET FEEDERS

SINGLE BIN c806121

7339-A 7340-A

DOUBLE BIN

WA

WA 7348-A 7348-A N/A

RIBBONS

STANDARD (BLACK)

INTERFACE

BOARDS

SERIAL

-

OK BUFFER

8143

8143

8143 8143

SERIAL

-

8K

BUFFER

8148 8148 8148 8148

PARALLEL

-

32K

BUFFER

8172 8172 8172 8172

IEEE

488

-

8K

BUFFER

8165 8165 8165 8165

8750 8750 8755 8786

CABLES

STANDARD IBM

PARMLEL

SERlAL

DB-25

TO DB-9

SERIAL

06-25

TO

08-25

Cl

-QE-A

Cl -9E-A Cl

-QE-A

Cl -QE-A

=I;

EiZx

EEx

g:;

MISC. PRINTER ACCESSORIES

PRINTER STAND

CPD-552

CPD-552

KP

-

STAND

8501-A

PSB No: P-0017B

Page: 2 of 2

24 - PIN MATRIX OPTIONS

TRACTOR UNITS

PULL TRACTOR

CUT SHEET FEEDERS

SINGLE BIN

DOUBLE BIN

INTERFACE BOARD8

SERIAL

-

OKBUFFER

-

8K BUFFER

PARALLEL

-

32K

BUFFER

IEEE 488

-

8K

BUFFER

CABLES

STANDARD IBM PARALLEL

SERJAL

DB-25 TO DB-9

SERIAL

08-25

TO

08-25

SERAl

DIN-8 TO DB-9

SERM

DIN-6 TO DB-25

APPLE ][e.

08-25

TO DIN-6

APPLE

][c.

DIN-6 TO DIN-S

FONT MODULES

COURIER

PRESTIGE

ELFi3

MULTI

MISC.

PRINTER ACCESSORIES

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EPSON AMERICA, INC.

EPSON

Product Support Bulletin

Subject: Quick Reference for Printer Acoustic Noise Levels

Date: 6/5/91

PSB No: P-0016D

Page(s): 1 of 2

Originator: SLS

Sound intensity is measured in units called Bels (named after Alexander Graham Bell,)

or more commonly in tenths of this fundamental unit: decibels. In making noise

measurements a weighting network is applied in an attempt to match the frequency

response of the instrument to that of the human ear. The most common is the A

weighting network, with resulting measurements expressed in dB(A).

The following is a list of current product’s noise levels tested in accordance with

standards set by the International Standards Organization (ISO). The acoustic noise

levels for the 9 pin printers are averages while printing in Near Letter Quality (NLQ)

mode using continuous paper and are not guaranteed figures. The acoustic noise

levels for the 24 pin printers are averages while printing in Letter Quality (LQ) mode

using continuous paper and are not guaranteed figures. The acoustic noise levels for

the laser printers are averages while using single sheet paper and are not guaranteed

figures.

9 PIN PRINTERS

MODEL

1

NOISE LEVEL

II

IX-81 0

56 dB(A)

II

FX-850

FX-1050

56 dB(A)

56 dB(A)

II

DFX-5000

I

55 dB(A)

II

II

DFX-8000

I

55 dB(A)

II

24 PIN PRINTERS

LQ-510

LQ-1010

56 dB(A)

56 dB(A)

11

LQ-850

1

56 dB(A)

11

PSB No: P-0016D

Page:

2 of 2

MODEL NOISE LEVEL

LQ-860

55 dB(A)

LQ-1050

55 dB(A)

LQ-2550

55 dB(A)

LASER PRINTERS