Epson TM-T20II User's Manual

User’s Manual

M00069103EN

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.
Depending on the area, the interface cable may be included with the product. If so, use that cable.
Seiko Epson Corporation shall not be held liable for any damage resulting from electromagnetic interference that
occurs from the use of any interface cables other than those designated as Epson approved products.
EPSON is a registered trademark of Seiko Epson Corporation. Exceed Your Vision is a registered trademark or
trademark of Seiko Epson Corporation. All other trademarks are the property of their respective owners and used
for identification purpose only.
NOTICE: The contents of this manual are subject to change without notice.
©Seiko Epson Corporation 2013-2019. All rights reserved.

2 TM-T20II User’s Manual

Important Safety Information

This section presents important information intended to ensure safe and effective
use of this product. Read this section carefully and store it in an accessible
location.

Key to Symbols

The symbols in this manual are identified by their level of importance, as defined
below. Read the following carefully before handling the product.

WARNING:

Warnings must be followed carefully to avoid serious bodily injury.

CAUTION:

Cautions must be observed to avoid minor injury to yourself, damage to your
equipment, or loss of data.

Note:

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

Safety Precautions

WARNING:

Shut down your equipment immediately if it produces smoke, a strange odor, or
unusual noise. Continued use may lead to fire or shock. Immediately unplug the
equipment and contact your dealer or a Seiko Epson service center for advice.

Never attempt to repair this product yourself. Improper repair work can be
dangerous.

Never disassemble or modify this product. Tampering with this product may
result in injury, fire, or shock.

Be sure to use the specified AC adapter. Connection to an improper power
source may cause fire.

Never insert or disconnect the power plug with wet hands. Doing so may result
in severe shock.

Do not place multiple loads on the power outlet (wall outlet). Always supply
power directly from a standard power outlet. Overloading the outlet may lead
to fire.

Be sure your power cord meets the relevant safety standards and includes a
power-system ground terminal (PE terminal). Otherwise shock may result.

Handle the cables with care. Improper handling may lead to fire or shock.

Do not use the cables if it they are damaged.
Do not modify or attempt to repair the cables.
Do not place any object on top of the cables.
Avoid excessive bending, twisting, and pulling of the cables.

Do not place cables near heating equipment.
Check that the plug is clean before plugging it in.

Check that the AC inlet is clean before plugging the power connector in it.
Be sure to push the prongs and power connector all the way in.

Use the provided power cable only. Do not use the provided power cable with
any other devices than the specified one. Doing so may lead to fire or shock.

Never glue the AC inlet and the power cable together.

TM-T20II User’s Manual 3

Regularly remove the power plug from the outlet and clean the base of the
prongs and between the prongs. If you leave the power plug in the outlet for a
long time, dust may collect on the base of the prongs, causing a short and fire.

Regularly confirm that the plug and AC inlet are not wet with liquid such as
water.

Do not allow foreign matter to fall into the equipment. Penetration by foreign
objects may lead to fire.

If water or other liquid spills into this equipment, unplug the power cord
immediately, and then contact your dealer or a Seiko Epson service center for
advice. Continued usage may lead to fire.

Do not use aerosol sprayers containing flammable gas inside or around this
product. Doing so may cause fire.

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

CAUTION:

Do not connect cables in ways other than those mentioned in this manual.
Different connections may cause equipment damage and burning.

Be sure to set this equipment on a firm, stable, horizontal surface. The product
may break or cause injury if it falls.

Do not use in locations subject to high humidity or dust levels. Excessive humidity
and dust may cause equipment damage or fire.

Do not place heavy objects on top of this product. Never stand or lean on this
product. Equipment may fall or collapse, causing breakage and possible injury.

Take care not to injure your fingers on the manual cutter

• When you remove printed paper

• When you perform other operations such as loading/replacing roll

To ensure safety, unplug this product before leaving it unused for an extended
period.

paper

Caution Labels

The caution labels on the product indicate the following precautions.

CAUTION:

Do not touch the thermal head because it can be very hot after printing.

Restriction of Use

When this product is used for applications requiring high reliability/safety, such
as transportation devices related to aviation, rail, marine, automotive, etc.;
disaster prevention devices; various safety devices, etc.; or functional/precision
devices, etc.; you should use this product only after giving consideration to
including fail-safes and redundancies into your design to maintain safety and
total system reliability. Because this product was not intended for use in
applications requiring extremely high reliability/safety, such as aerospace
equipment, main communication equipment, nuclear power control equipment,
or medical equipment related to direct medical care, etc., please make your own
judgment on this product’s suitability after a full evaluation.

4 TM-T20II User’s Manual

Downloading Drivers, Utilities, and Manuals

Setup Guide

TM-T20II Software
& Documents Disc

Printer

Power switch
cover

Power switch
waterproof cover

Roll paper

AC cable

USB Interface
cable

Screws for wall
hanging bracket

Wall hanging
bracket

Rubber feet for
vertical installation

Control panel label for
vertical installation

58-mm width
paper guide plate

AC adapter

The latest versions of drivers, utilities, and manuals can be downloaded from one
of the following URLs.

For customers in North America, go to the following web site:
www.epson.com/support/

For customers in other countries, go to the following web site:
www.epson-biz.com/

Unpacking

The following items are included with the standard specification printer.
If any item is damaged, contact your dealer.

Note:

Depending on the model, the accessories in the broken line box may not be included.
The shape of accessories varies between models and areas.

TM-T20II User’s Manual 5

Part Names

Roll paper cover

Cutter cover

Cover open lever

Power switch

Control panel

Control Panel

(Power) LED

This LED is on when the printer is on.

Error LED

This indicates an error.

Paper LED

On indicates a paper out. Flashing indicates standby.

Feed button

This button feeds paper.

6 TM-T20II User’s Manual

Connecting the Cables

RS-232

10BASE-T/
100BASE-TX

DK

(Drawer kick-out

connector)

DC24V

USB (Type B)

USB (Type A)*

* for wireless LAN unit

Hook

WARNING:

Be sure to use the specified AC adapter [AC Adapter, C1 (Model: M235B)] only.

CAUTION:

For a serial interface, use a null modem cable.
For a USB interface, do not turn on the printer before installing the printer driver.
For using an Ethernet (10Base-T/100Base-TX) interface, do not connect a

telephone line or a drawer kick-out cable to the Ethernet connector.
Do not connect to electrical outlets close to devices that generate voltage

fluctuations or electrical noise. In particular, stay clear of devices that use large
electric motors.

Never attempt to stretch the cables to enable a connection. The power cable
must have adequate slack at all times during use.

1. Make sure the printer is turned off.

2. Connect the interface cable to the printer.
For the shape of each connector, see the illustration below. (Mounted
interfaces vary by the printer model.)

㻌

Note:

When connecting the USB cable, fix the USB cable with the hook shown in the illustration
below to prevent the cable from coming off.

TM-T20II User’s Manual 7