Epson TM-T88II User Manual

TM-T88II Series

User’s Manual

400852003

Printer Parts and Labels

FEED

Printer cover

Control panel

Cutter cover

Caution Labels

Thermal head is hot.

La téte thermique est chaude.

CAUTION:

ATTENTION:

VORSICHT:

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Cover open button

Labels

Label inside
printer cover

POWER
ERROR

PAPER
OUT

FEED

cutter section

Label inside

Der Thermalkopf ist heiß.

Caution label above for the drawer kick-out connector.

Quick Reference

This Quick Reference will direct you to key areas of this Operator’s
Manual. For a complete listing of topics, see the Contents.

Printer Parts and Labels inside front cover

Ordering Paper page ix

Where to order paper.

Setting Up the Printer page 1-1

How to set up the printer.

Installing and Replacing Paper page 1-7

How to load or change the paper roll.

Solving Problems page 3-1

How to correct problems.

i

All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without the prior written permission of Seiko
Epson Corporation. No patent liability is assumed with respect to the use of the
information contained herein. While every precaution has been taken in the
preparation of this book, Seiko Epson Corporation assumes no responsibility for
errors or omissions. Neither is any liability assumed for damages resulting from the
use of the information contained herein.

Neither Seiko Epson Corporation nor its affiliates shall be liable to the purchaser of
this product or third parties for damages, losses, costs, or expenses incurred by
purchaser or third parties as a result of: accident, misuse, or abuse of this product or
unauthorized modifications, repairs, or alterations to this product, or (excluding the
U.S.) failure to strictly comply with Seiko Epson Corporation’s operating and
maintenance instructions.

Seiko Epson Corporation shall not be liable against any damages or problems arising
from the use of any options or any consumable products other than those designated
as Original Epson Products or Epson Approved Products by Seiko Epson
Corporation.

EPSON and ESC/POS are registered trademarks of Seiko Epson Corporation.

NOTICE: The contents of this manual are subject to change without notice.

Copyright © 1998 by Seiko Epson Corporation, Nagano, Japan.

ii

EMC and Safety Standards Applied

Product Name: TM-T88II

Model Name: M129B

The following standards are applied only to the printers that are so
labeled. (EMC is tested using the EPSON PS-170 power supply)

Europe: CE Marking

Safety: EN60950

North America: EMI: FCC/ICES-003 Class A

Safety: UL 1950/CSA C22.2 No. 950

Japan: EMI: VCCI Class A

Oceania: EMC: AS/NZS 3548

Taiwan: EMI: Class B

WARNING

The connection of a non-shielded printer interface cable to this printer will invalidate
the EMC standards of this device.

You are cautioned that changes or modifications not expressly approved by SEIKO
EPSON Corporation could void your authority to operate the equipment.

iii

CE Marking

The printer conforms to the following Directives and Norms

Directive 89/336/EEC EN 55022 Class B

EN 55024

IEC 61000-4-2
IEC 61000-4-3
IEC 61000-4-4
IEC 61000-4-5
IEC 61000-4-6
IEC 61000-4-11

Directive 90/384/EEC EN45501

FCC Compliance Statement

For American Users

This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference, in which case the user will be required to
correct the interference at his own expense.

FOR CANADIAN USERS

This Class A digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe A est conforme

la norme NMB-003 du Canada.

à

iv

GEREÄUSCHPEGEL

Gemäß der Dritten Verordnung zum Gerätesicherheitsgesetz
(Maschinenlärminformations- Verordnung-3. GSGV) ist der arbeitsplatzbezogene
Geräusch-Emissionswert kleiner als 70 dB(A) (basierend auf ISO 7779).

v

About This Manual

Setting Up and Using

❏ Chapter 1 contains information on unpacking the printer and setting it up.
❏ Chapter 2 contains information on using the printer.
❏ Chapter 3 contains troubleshooting information.

Reference

❏ Chapter 4 contains specifications.
❏ Appendix A tells how to change the DIP switch and paper near end settings.

Warnings, Cautions, and Notes

WARNING:

Follow warnings carefully to avoid serious bodily injury.

CAUTION:

Observe cautions to avoid minor injury to yourself or damage
to your equipment.

Note:

Notes have important information and useful tips on the operation of your
printer.

vi Quick Reference

Introduction

Features

TM-T88II Series printers are high-quality POS printers that can print on a paper roll.
The printers have the following features:

Printing

❏ High-speed printing: 28.4 lines/second (4.23mm (1/6”) feed) maximum.
❏ Low-noise thermal printing.
❏ High reliability due to a stable mechanism.

Application Software

®

❏ Command protocol is based on the ESC/POS
❏ Various layouts are possible by using page mode.
❏ Characters can be scaled up to 64 times as large as the standard size. Smoothing

is also possible.

❏ Bar code printing is possible by using a bar code command. Bar codes can be

printed both in the vertical direction (fence bar code) and in the horizontal
direction (ladder bar code).

standard.

❏ Repeated operations and copy printing are possible by using macro definitions.
❏ Character font size (12 x 24 font or 9 x 17 font) can be selected using a command.

Printer Handling

❏ Easy paper roll loading.
❏ An autocutter is standard.
❏ The printer allows easy maintenance for tasks such as head cleaning.
❏ Three different print densities can be selected by DIP switches.
❏ The built-in interface provides control capability for two drawers.

Introduction vii

Options and Accessories

❏ EPSON power supply unit, PS-170.
❏ Affixing tapes (model: DF-10).
❏ RS-485 interface board can be installed as a dealer option.
❏ Wall hanging bracket set (WH-10).

viii Introduction

Ordering Paper and Supplies

You can order thermal roll paper from the supplier in your area.

Specified Thermal Roll Paper: NTP080-80

In Japan: Nakagawa Seisakujo

2-5-21 Nishiki-Cho Warabi-Shi
Saitama-Ken 335 Japan

Tel: [phone]
Fax: [phone]

In U.S.A.: Nakagawa Mfg (USA) Inc.

2305 Lincoln Avenue
Hayward, CA 94545 USA

Tel: [phone]
Fax: [phone]

In Europe: Nakagawa Mfg (Europe) GmbH.

Krützpoort 16, 47804
Krefeld, Germany

Tel: [phone]
Fax: [phone]

In Southeast Asia: N.A.K. Mfg (Malaysia) SDN BHD

Lot 19-11, Bersatu Industrial Complexs,
Jalan Satu, Kaw Per. Cheras Jaya,.
Balakong Industrial Area, 43200 Cheras.
Selangor Darul Ehsan, Malaysia

Tel: [phone]
Fax: [phone]

Introduction ix

Other Qualified Suppliers for Thermal Paper

The following suppliers sell thermal paper that may be used if
desired. Contact each company for information.

Original paper: TF50KS-E

Nippon Paper Industry Co., Ltd.

1-12-1, Yuraku-Cho, Chiyoda-Ku
Tokyo 100 Japan

Tel: [phone]
Fax: [phone]

Original paper: PD 160R

New Oji Paper Mfg. Co., Ltd.

7-5 Ginza 4-Chome Chuo-Ku
Tokyo 104 Japan

Tel: [phone]
Fax: [phone]

Original paper: AF50KS-E

Jujo Thermal Oy (Finland)

P.O. Box 92 FIN27501 Kauttua Finland

Original paper: P350(F380)

x Introduction

Tel: [phone]
Fax: [phone]

P310, P300

Kanzaki Specialty Papers, Inc.

1500 Main Street
Springfield, MA 01115 U.S.A.

Tel: [phone]
Fax: [phone]

Contents

Chapter 1

Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Connecting the Cables and Grounding the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Connecting the Drawer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Grounding the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Connecting the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Installing or Replacing the Paper Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Using the Power Switch Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Running the self test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Adjustments and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Chapter 2

Operating the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Chapter 3

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

General problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Printing problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Cleaning the print head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Paper handling problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Auto cutter problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Hexadecimal Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Setting Up the Printer

Using the Printer

Troubleshooting

Chapter 4

Printing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Paper Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Reference Information

xi

Appendix A

Setting the DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

DIP switch functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Changing the DIP switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

Adjusting the Paper Near End Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

DIP Switch and Paper Near End Settings

xii

Chapter 1

Setting Up the Printer

Unpacking

The illustration below shows the items included for the standard
specification printer.

Printer

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PAPER

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Paper roll

Hexagonal
lock screws
(only for the serial interface)

See the note on page 1-3 for information about the hexagonal lock screws.

Switch cover

Setting Up the Printer 1-1

Connecting the Cables and Grounding the Printer

)

You can connect up to four cables to the printer. They all connect to
the connector panel on the back of the printer, which is shown
below:

FG

Interface
(The shape of the interface
connector is different from
the illustration if the printer
has a parallel interface.

FG

DK

Grounding screw

DC24V

Power supply

Drawer kick-out

Note:

There is a caution label above the drawer kick-out connector.
Depending on the interface installed, the interface connector on
your printer may look different from the one illustrated.

Before connecting any cables, make sure both the printer and
computer are turned off.

Connecting the computer

You need an appropriate interface cable.

1. Plug the cable connector securely into the printer’s interface
connector.

1-2 Setting Up the Printer

2. If the printer has a serial interface, tighten the screws on both
sides of the cable connector.

Note:

Your printer has inch-type hexagonal lock screws installed. If
your interface cable requires millimeter-type screws, replace the
inch-type screws with the enclosed millimeter-type screws using
a hex screwdriver (5 mm).

Inch screw

If the printer has a parallel interface, squeeze the wire clips on
the printer together until they lock in place on both sides of the
connector.

3. Attach the other end of the cable to the computer.

Millimeter screw

Connecting the Drawer

WARNING:

Use a drawer that matches the printer specifications. Using
an improper drawer may damage the drawer as well as the
printer.

Setting Up the Printer 1-3

CAUTION:

Do not connect a telephone line to the drawer kick-out
connector; otherwise the printer and the telephone line may
be damaged.

Plug the drawer cable into the drawer kick-out connector on the
back of the printer next to the power supply connector.

Anschließen der Schublade

WARNUNG:

Eine für den Drucker geeignete Schublade verwenden. Bei
Verwendung einer falschen Schublade kann diese oder der
Drucker beschädigt werden.

ACHTUNG:

Kein Telefonkabel an die Schnappsteckerbuchse
anschließen, da sonst der Drucker und die Telefonkabel
beschädigt werden können.

1-4 Setting Up the Printer

Das Kabel der Schublade an die Schnappsteckerbuchse hinten am
Drucker neben dem Netßzanschluß

anschließen

.

Grounding the Printer

You need a ground wire to ground your printer. Make sure the
wire is AWG 18 or equivalent.

1. Be sure the printer is turned off.

2. Connect the ground wire to the printer using one of the FG
screws on the back of the printer, as shown.

F

G

F

G

D

C

24V

D

K

Connecting the Power Supply

Use the optional EPSON PS-170 or equivalent power supply for
your printer.

Setting Up the Printer 1-5

WARNING:

Make sure you use the EPSON PS-170 power supply or
equivalent. Using an incorrect power supply may cause fire or
electrical shock.

CAUTION:

When connecting or disconnecting the power supply from
the printer, make sure the power supply is not plugged into
an electrical outlet. Otherwise you may damage the power
supply or the printer.

If the power supply’s rated voltage and your outlet’s voltage
do not match, contact your dealer for assistance. Do not
plug in the power cord. Otherwise, you may damage the
power supply or the printer.

1. Make sure the printer’s power switch is turned off, and the
power supply’s power cord is unplugged from the electrical
outlet.

2. Check the label on the power supply to make sure the voltage
required by the power supply matches your electrical outlet.

3. Plug in the power supply’s cable as shown below. Notice that
the flat side of the plug faces down.

Note:

To remove the DC cable connector, make sure the power supply’s
power cord is unplugged; then grasp the connector at the arrow and
pull it straight out.

1-6 Setting Up the Printer

Installing or Replacing the Paper Roll

FEED

Note:

Be sure to use paper rolls that meet the specifications. Do not
use paper rolls that have the paper glued to the core, because the
printer cannot detect the paper end correctly.

1. Make sure the printer is not receiving data; otherwise, data
may be lost.

2. Open the paper roll cover by pressing the cover-open button. If
the cover-open button will not open the cover, see page 3-4 or
3-6 in Troubleshooting.

POWER

ERROR

PAPER

OUT

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3. Remove the used paper roll core, if there is one.

Setting Up the Printer 1-7

4. Insert the paper roll as shown.

FEED

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5. Be sure to note the correct direction that the paper comes off the
roll.

1-8 Setting Up the Printer

6. Pull out a small amount of paper, as shown. Then close the

ERROR

POWER

PAPER

OUT

F

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D

FEED

FEED

cover.

7. Tear off the paper as shown.

POWER

ERROR

PAPER

OUT

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Setting Up the Printer 1-9

Using the Power Switch Cover

FEED

WARNING:

If an accident occurs when the power switch cover is
attached, unplug the power supply cord from the outlet
immediately. Continued use may lead to fire or shock.

You can use the enclosed power switch cover to make sure the
power switch is not pressed accidentally. If you want to use this
cover, install it as shown in the illustration below.

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Self Test

The self test lets you know if your printer is operating properly. It
checks the control circuits, printer mechanisms, print quality, ROM
version, and DIP switch settings.

This test is independent of any other equipment or software.

Running the self test

1. Make sure the printer is turned off and the printer covers are
closed properly.

1-10 Setting Up the Printer

2. While holding down the
the switch on the front of the printer to begin the self test. The
self test prints the printer settings and then prints the
following, cuts the paper, and pauses. (The
blinks.)

Please press the PAPER FEED button.

FEED

button, turn on the printer using

Self test printing.

PAPER OUT

light

3. Press the
pattern using the built-in character set.

4. The self test automatically ends and cuts the paper after
printing the following:

The printer is ready to receive data as soon as it completes the self
test.

FEED

button to continue printing. The printer prints a

*** completed ***

Note:

If you want to pause the self test manually, press the FEED
button. Press the FEED button again to continue the self test.

Setting Up the Printer 1-11

Adjustments and Settings

TM-T88II Series printers are set up at the factory to be appropriate
for almost all users. There are, however, some settings for users
with special requirements.

Your printer has DIP switches that allow you to change
communication settings, such as handshaking and parity check, as
well as print density.

TM-T88II Series printers also have a near-end sensor for the paper.
This can warn you when the paper is almost out. If you find that
there is not enough paper remaining on the roll when the near-end
detector is triggered, you can change the near-end sensor setting.

See Appendix A, if you need to make any of these changes.

1-12 Setting Up the Printer

Chapter 2

Using the Printer

Operating the Control Panel

You can control the basic paper feeding operations of the printer
with the button on the control panel. The indicator lights help you
monitor the printer’s status.

Control Panel

POWER
ERROR

PAPER
OUT

FEED

Button

The button can be disabled by the

Press the
hold down the

FEED

button once to advance paper one line. You can also

FEED

button to feed paper continuously.

ESC c 5

command.

Using the Printer 2-1

Panel lights

POWER

POWER

The

ERROR

This indicates an error. See Chapter 3 for information on what to do
when this light comes on.

PAPER OUT

This light indicates the near end of the paper roll. Install a new
paper roll, and the printer will continue printing.

When the light blinks, it indicates the self-test printing standby
state or macro execution standby state when the macro execution
command is used.

light is on whenever the printer is on.

2-2 Using the Printer

Chapter 3

Troubleshooting

Troubleshooting

This chapter gives solutions to some printer problems you may
have.

General problems

The lights on the control panel do not come on.

Make sure the power supply cables are correctly plugged into the
printer, the power unit, and into the power outlet.

Make sure power is supplied to the power outlet. If the outlet is
controlled by a switch or timer, use another outlet.

Printing problems

ERROR

The

The

ERROR

light is on (not blinking) and nothing is printed.

PAPER OUT

If the
or near the end. Install a new paper roll. See Chapter 1 for
instructions.

PAPER OUT

If the
properly closed. Press the printer cover until the cover audibly
clicks into place.

light is blinking and the printer does not print.

First, turn off the printer and check for a paper jam. (See the paper
jam description on page 3-3.)

light is on, the paper roll is not installed or is at

light is

off

, make sure the printer cover is

Troubleshooting 3-1

If there is no paper jam and the printer has been printing for quite a
while, the print head may be overheated. If the print head is
overheated, the printer will resume printing when the head has
cooled (usually within two or three minutes).

If there is no paper jam and the print head is not overheated, turn
off the printer and turn it back on after about 10 seconds. If the

ERROR

ERROR

The

Try to run the self test to check that the printer works properly. See
the self test instructions in Chapter 1 to run the self test. If the self
test does not work, contact your dealer or a qualified service
person.

If the self test works properly, check the following:

1. Check the connection at both ends of the interface cable

2. The data transmission settings may be different between the

light is still flashing, contact a qualified service person.

light is off, but nothing is printed.

between the printer and the computer. Also make sure this
cable meets the specifications for both the printer and the
computer.

printer and computer. Make sure the printer’s DIP switch
settings for data transmission are the same as the computer’s.
You can print the printer’s interface settings using the self test.

If the printer still does not print, contact your dealer or a qualified
service person.

Printing is poor.

Paper dust on the heating element of the thermal print head can
lower the print quality. Try cleaning the print head as described
below:

3-2 Troubleshooting

Cleaning the print head

CAUTION:

After printing, the print head can be very hot. Be careful not
to touch it. Also let it cool before you clean it.
Do not damage the print head by touching it with your
fingers or any hard object.

1. Open the printer cover.

2. Clean the thermal element of the print head with a cotton swab
moistened with an alcohol solvent (ethanol, methanol, or IPA).

Radiation plate

Head

Thermal element

Paper handling problems

Paper is jammed inside the printer.

CAUTION:

Do not touch the print head because it can be very hot after
printing continuously for a long time.

Troubleshooting 3-3

To clear a paper jam, follow the steps below:

FEED

1. Turn the printer off and press the cover open button to open
the cover.

2. Remove the jammed paper, put the roll back in the printer, and
close the cover.

3. If paper is caught in the automatic cutter and the printer cover
cannot be opened, open the cutter cover as shown below.

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FEED

3-4 Troubleshooting

4. Then turn the knob until you see in the opening, as shown in

FEED

ADJUSTMENT:
TURN KNOB

UNTIL YOU SEE
TRIANGLE IN OPENING

the illustration below. This returns the cutter blade to the
normal position. Also notice that there is a label near the cutter
to assist you.

ADJUSTMENT:
TURN KNOB

UNTIL YOU SEE
TRIANGLE IN OPENING

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ERROR

PAPER

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5. Close the cutter cover.

6. Open the printer cover.

7. Remove the jammed paper.

Auto cutter problems

The auto cutter is jammed.

If a foreign object, such as a push pin or paper clip, drops in the
auto cutter and causes the auto cutter to lock up, the printer enters
an error state and begins the recovery operation automatically.

If the problem is not serious, the auto cutter returns to its normal
position without any intervention by the user.

Troubleshooting 3-5

If the auto cutter does not return to its normal position by itself,

FEED

FEED

follow the steps below to correct the problem:

1. Pull the cutter cover toward you so that you can rotate the
cutter motor knob.

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PAPER

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2. Following the instructions on the label, rotate the knob until the
appears in the hole.

ADJUSTMENT:
TURN KNOB

UNTIL YOU SEE
TRIANGLE IN OPENING

3. Close the cutter cover.

3-6 Troubleshooting

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Hexadecimal Dump

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 hex dump function, the printer
prints all commands and other data in hexadecimal format, along
with a guide section to help you find specific commands.

To use the hex dump feature, follow these steps:

1. After you make sure the printer is off, open the cover.

2. Hold down the

3. Close the cover.

4. Run any software program that sends data to the printer. The
printer prints “Hexadecimal Dump” and then 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 correspond to the codes.

Hexadecimal Dump
1B 21 00 1B 26 02 40 40 . ! . . & . @ @
1B 25 01 1B 63 34 00 1B . % . . c4 . .

41 42 43 44 45 46 47 48 ABCDEFGH

A period (.) is printed for each code that has no ASCII

❏

equivalent.

During the hex dump all commands except

❏

DLE ENQ

5. Open the cover to set the printer off line, so that it will print the
last line.

6. Close the cover and turn off the printer or reset it to turn off the
hex dump mode.

FEED

button while you turn on the printer.

are disabled.

DLE EOT

and

Troubleshooting 3-7

3-8 Troubleshooting

Chapter 4

Reference Information

Printing Specifications

Printing method:

Dot density:

Printing direction:

Printing width:

Characters per line
(default):

Character spacing
(default):

Printing speed —
High-speed mode:

Thermal line printing

×

180 dpi

25.4 mm (1”)]

Unidirectional with friction feed

72 mm (2.83”), 512 dot positions

42 (Font A)
56 (Font B)

0.28 mm (.01”) (2 dots) (Font A)

0.28 mm (.01”) (2 dots) (Font B)
Programmable by control command.

Approximately 120 mm/second
maximum (approximately 4.72”/second
maximum)
38 lines/second maximum (computed
value for 3.18mm (1/8”) feed)

28.4 lines/second maximum
(4.23 mm (1/6”) feed, at 24 V, 28° C (82° F),
density level 2)
Speed is adjusted depending on the
applied voltage to the printer and head
temperature conditions automatically.

180 dpi [the number of dots per

Printing speed —
Low-power­consumption mode:

Approximately 16.5 lines/second
(4.23 mm feed (1/6”))
Approximately 70 mm/second
(approximately 2.76”/second)

Reference Information 4-1

Printing speed —
when a ladder bar

Approximately 42 mm/ second
(approximately 1.7’’/ second)

code is printed:

Notes:

Printing speed may be slower, depending on the data transmission
speed and the combination of control commands.

There may be variations in printing after switching the mode of the
printing speed. To prevent this for logo printing, it is recommended
that you use a downloaded bit image. (Changes in printing speed do
not occur during downloaded bit image printing).

Paper feeding speed:

Line spacing (default):

Number of characters:

Character structure:

Approximately 120 mm/second
(approximately 4.72”/second) continuous
paper feeding

4.23 mm (1/6”)
Programmable by control command.

Alphanumeric characters: 95
International characters: 32

×

Extended graphics: 128

7 pages
(including one space page)
Kanji characters: JIS-Level 1, Level 2

(JIS X0208-1990)

×

Font A: 12

24 (including 2-dot spacing

horizontally)

Font B: 9

×

17 (including 2-dot spacing

horizontally)

Kanji: 24

×

24

Font A is the default

4-2 Reference Information

Standard Double-height Double-width

80±

0.5

1.0

mm 3.15’’±

0.02’’

0.04’’

W x H

in mm (")

2.82 x 3.39
(0.11” x .13”)

1.98 x 2.40
(0.08” x .09”)

6.77 x 3.39
(0.27’’x.13’’)

CPL

21

28

10

Font A

12 x 24

Font B

9 x 17

Kanji

24 x 24

W x H

in mm (")

1.41 x 3.39
(0.06” x .13”)

0.99 x 2.40
(0.04” x .09”)

3.39 x 3.39
(0.13’’x.13’’)

CPL

42

56

21

W x H

in mm (")

1.41 x 6.77
(0.06” x .27”)

0.99 x 4.80
(0.04” x .19”)

3.39 x 6.77
(0.13’’x.27’’)

CPL

42

56

21

* CPL = Characters Per Line

* Space between characters is not included

* Characters can be scaled up to 64 times as large as the standard sizes.

Paper Specifications

Double-width/
Double-height

W x H

in mm (")

2.82 x 6.77
(0.11” x .27”)

1.98 x 4.80
(0.08” x .19”)

6.77 x 6.77
(0.27’’x.27’’)

CPL

21

28

10

Paper roll (single-ply):

Size: Width: 79.5 mm ± 0.5 mm

(3.13” ± 0.02”)

Maximum

83 mm (3.27”)
outside
diameter:

Paper roll
spool
diameter:

Inside: 12 mm (0.47”)

Outside: 18 mm (0.71”)

Paper must not be pasted

to the paper roll spool.

Take up
paper roll
width:

Reference Information 4-3

Electrical Characteristics

Supply voltage:

Current
consumption:

24V)

Note:

Maximum 1A for drawer kick-out driving

+24 VDC ± 7% (optional power supply: EPSON
PS-170)

High-speed
mode:

(at

Low-power­consumption

mode:

Standby: Mean: Approximately 0.2A

Mean: Approximately 1.7A
(character font A α-N all
columns printing)
Peak: Approximately 7.7A

Mean: Approximately 1.2A
(Character font A α-N all
columns printing)
Peak: Approximately 6.6A

4-4 Reference Information

Reliability

Life:

MTBF:

MCBF:

Mechanism: 15,000,000 lines

Thermal head: 100 million pulses,

Auto cutter: 1,500,000 cuts

(End of Life is defined to have reached the
end of its life when it reaches the
beginning of the Wearout Period.)

360,000 hours
(Failure is defined as Random Failure
occurring at the time of the Random
Failure Period.)

52,000,000 lines
(This is an average failure interval based
on failures relating to wearout and
random failures up to the life of 15 million
lines.)

Environmental Conditions

100 km

Temperature:

Humidity:

Operating: 5° to 45° C (41° to 113° F)

Storage: –10° to 50° C (14° to

122° F), except for paper

Operating: 10 to 90% RH

Storage: 10 to 90% RH, except for

paper

Reference Information 4-5

4-6 Reference Information

Appendix A

DIP Switch and Paper Near End Settings

Although the factory settings are best for almost all uses, if you
have special requirements, you can change the DIP switch or paper
near end settings.

Setting the DIP Switches

DIP switch functions

Your printer has two sets of DIP switches. The functions of the
switches are shown in the following tables.

Serial interface specifications

Set 1

SW Function ON OFF

1-1 Data receive error Ignored Prints “?”

1-2 Receive buffer capacity 45 bytes 4K bytes

1-3 Handshaking XON/XOFF DTR/DSR

1-4 Data word length 7 bits 8 bits

1-5 Parity check Enabled Disabled

1-6 Parity selection Even Odd

1-7

Transmission speed (See the table below.)

1-8

DIP Switch and Paper Near End Settings A-1

Transmission Speed

Transmission Speed (BPS)-bits per second 1-7 1-8

2400 ON ON

4800 OFF ON

9600 ON OFF

19200 OFF OFF

Set 2

SW Function ON OFF

Handshaking (BUSY

2-1

condition)

Reserved: do not

2-2

change settings

2-3

Selects print density Refer to table below

2-4

Reserved: do not

2-5

change settings

Reserved: do not

2-6

change settings

2-7 I/F pin 6 reset signal Enabled Disabled

2-8 I/F pin 25 reset signal Enabled Disabled

Receive buffer full

Fixed to OFF

Fixed to OFF

Fixed to OFF

Off line or
receive buffer full

A-2 DIP Switch and Paper Near End Settings

Print Density Selection

Print Density SW 2-3 SW 2-4

1 Low power consumption mode ON ON

2 (Normal) OFF OFF

3ONOFF

4 (Dark) OFF ON

Notes:

With the optional RS-485 interface, DIP switches 2-7 and 2-8 are disabled.

•

Changes in DIP switch settings (excluding switches 2-7 and 2-8 interface reset

•

signals) are recognized only when the printer power is turned on or when the
printer is reset by using the interface. If the DIP switch setting is changed after
the printer power is turned on, the change does not take effect until the
printer is turned on again or is reset.

If you turn on DIP switch 2-7 or 2-8 while the printer is turned on, the printer may

•

be reset, depending on the signal state. DIP switches should not be changed
while the printer power is on.

If the print density is set to level 3 or 4, the printing will be at low speed.

•

In a low power consuption, printing speed is fixed to 70 mm/sec.

•

DIP Switch and Paper Near End Settings A-3

Parallel interface specifications

Set 1

SW Function ON OFF

1-1 Auto line feed Always enabled Always disabled

1-2 Receive buffer capacity 45 bytes 4K bytes

1-3~

Undefined — —

1-8

Set 2

SW Function ON OFF

Handshaking

2-1

(BUSY condition)

Reserved

2-2

(Do not change settings)

2-3

Selects print density Refer to table below

2-4

2-5~

Reserved

2-7

(Do not change settings)

I/F pin 31 reset signal

2-8

(Do not change settings)

•

Receive buffer full

•

Reading data

Fixed to Off

Fixed to Off

Fixed to On

•

Off-line

•

Receive buffer full

•

Reading data

Print Density Selection

Print Density SW 2-3 SW 2-4

1 Low power consumption mode ON ON

2 (Normal) OFF ON

3ONOFF

4 (Dark) OFF OFF

A-4 DIP Switch and Paper Near End Settings

Notes:

Changes in DIP switch settings (excluding switch 2-8 interface reset signal) are

•

recognized only when printer power is turned on or when the printer is reset
using the interface. If the DIP switch setting is changed after printer power is
turned on, the change does not take effect until the printer is turned on again
or is reset.

If you turn on DIP switch 2-8 while the printer is turned on, the printer may be

•

reset, depending on the signal state. Do not change DIP switches while the
printer power is on.

If the print density is set to level 3 or 4, the printing will be at low speed.

•

In a low power consumption, printing is fixed to 70 mm/sec.

•

DIP Switch and Paper Near End Settings A-5

Changing the DIP switch settings

If you need to change settings, follow the steps below to make your
changes:

CAUTION:

Turn off the printer before removing the DIP switch cover to
prevent an electric short, which can damage the printer.

1. Make sure the printer is turned off.

2. Remove the screw from the DIP switch cover. Then take off the
DIP switch cover, as shown in the illustration below.

DSW1
DSW2

3. Set the switches using a pointed tool, such as tweezers or a
small screwdriver.

4. Replace the DIP switch cover. Then secure it with the screw.

The new settings take effect when you turn on the printer.

A-6 DIP Switch and Paper Near End Settings

Adjusting the Paper Near End Detector

FEED

The paper near end detector detects when paper is almost gone by
measuring the diameter of the paper roll. The detector has two
settings.

Because of variations in paper roll cores, it is not possible for the
detector to measure the exact length of the paper left on the roll
when the detector is triggered. Of the two settings, the factory
setting (lower) leaves the least amount of paper on the roll when
the sensor is triggered. If you want more paper left, change the
setting as described below.

Note:

The factory setting is based on a paper roll core with an outside
diameter of 18 mm (0.71") and an inside diameter of 12 mm (0.47").
If you use a paper roll with a core with an outside diameter of more
than 18 mm, it is better to change to the upper setting, as described
below.

1. Open the printer cover, and remove the paper roll.

2. Loosen the adjusting screw and move the tab up to the upper
setting.

Tab

Screw

P

O

W

E

E

R

R

R

O

R

P

A

P

O

E

U

R

T

F

E

E

D

3. Tighten the adjusting screw, and check to be sure that the
detecting lever moves freely.

4. Replace the paper roll.

DIP Switch and Paper Near End Settings A-7

A-8 DIP Switch and Paper Near End Settings

Printed in Japan

1999.12