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, 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.
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 à la norme NMB-003 du Canada.
iii
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).
iv
Introduction
Features
The TM-U925 is a high-quality POS printer that can print on both slip and roll paper.
The printer has the following features:
❏Wide slip paper capability (maximum characters per line: 88 with 7 x 9 font).
❏Interface connector within the printer’s external dimensions.
❏High throughput using bidirectional, minimum distance printing.
❏Precision paper feeding at 0.176mm {1/144 inch}.
❏Selectable receive buffer size (32 bytes or 2K bytes).
❏Slip ejection.
®
❏Command protocol based on the ECS/POS
❏ASB (Automatic Status Back) function that automatically transmits changes in
printer status.
®
❏EPSON
❏EPSON customer display series connection.
intelligent module connection.
standard.
❏Optional Magnetic Ink Character Recognition (MICR) reader that enables the
printer to perform reading and processing of MICR characters in addition to
printing endorsements.
Options and Accessories
❏Magnetic Ink Character Recognition (MICR) reader (factory installed option)
❏Direct connection customer displays, DM-D102 and DM-D203
❏EPSON power supply unit, PS-170 (not required when the TM-U925 is
connected to an intelligent module)
❏EPSON ribbon cassette, ERC-31 (P)
v
About This Manual
Setting Up and Using
❏Chapter 1 contains information on unpacking the printer, setting it up, running
the self test, setting the DIP switches, and adjusting the paper near end detector.
❏Chapter 2 contains information on using the printer, including the optional
MICR reader.
❏Chapter 3 contains troubleshooting information, including how to clean the
optional MICR reader.
Reference
❏Chapter 4 contains specifications.
Notes, Cautions, and Warnings
Note:
Notes have important information and useful tips on the operation of your
printer.
CAUTION:
Cautions must be observed to avoid minor injury to yourself or
damage to your equipment.
WARNING:
Warnings must be followed carefully to avoid serious bodily
injury.
Use these instructions whenever you need to open or close the
printer.
Open the printer by pushing the cover-open button and then lifting
the printer cover.
Close the printer by pressing on the indentation on the right side of
the printer cover until it audibly clicks into place.
OPEN
CLOSE
1
OPEN
2
Setting Up the Printer 1-1
Unpacking
The illustration below shows the items included for the standard
specification printer.
Ribbon
Printer
Hexagonal lock screws
See the note on page 1-3 for information about the hexagonal lock screws.
See the power switch cover section in Chapter 2 for information about the cover.
See the slip paper handling section in Chapter 2 for information about the label.
Caution label
Paper roll
Power switch
cover
Removing the protective material
The printer is protected during shipping by a piece of protective
material that must be removed before you turn on the printer.
Pull out the protective material and remove it from the printer as
shown below.
1-2 Setting Up the Printer
Store the protective material with the other packing materials and
use it when transporting your printer.
Connecting the Printer to Your Computer
Follow the procedures below only when you use the printer as a
single unit (not connected to an intelligent module). When you use
the printer with the intelligent module, see the IM-403/405 User's Guide for details.
You need an appropriate interface cable to connect your computer
to the printer's built-in interface.
1.Make sure that both the printer and computer are turned off;
then attach the cable connector securely into the printer's
interface connector.
2.Tighten the screws on both sides of the cable connector.
Note:
Your printer comes with inch-type hexagonal lock screws
installed. To use an interface cable that requires millimeter-type
screws, replace the inch-type screws with the enclosed
millimeter-type screws using a hex screwdriver (5 mm). To
distinguish the two types of screws, see the figure below. The
inch-type screw is on the left.
Setting Up the Printer 1-3
3.Attach the other end of the cable into the computer.
4.Plug the power supply's power cord into an electrical outlet.
Connecting the Printer to the Drawer Connector
Follow the procedures below to connect a drawer to the printer
only when you use the printer as a single unit (not connected to an
intelligent module). When you use the printer with the intelligent
module, see the IM-403/405 User's Guide for details.
You need an appropriate drawer kick-out cable to connect your
drawer to the printer. See Chapter 4 for more information about the
drawer interface.
1.Make sure that the printer is turned off.
2.Plug the cable connector into the printer's drawer kick-out
connector until it clicks.
CAUTION:
Be sure not to connect this cable to the display module
connector, which is on the other side of the interface
connector.
Do not connect a telephone line to the drawer kick-out
connector.
1-4 Setting Up the Printer
Note:
To remove the cable connector, squeeze the connector's clip and pull
it out.
Connecting to a Direct Connection Display Module
If you are using the printer as a single unit (not connected to an
intelligent module) and you plan to connect a direct connection
display module, follow the steps below. When you use the printer
with the intelligent module, see the IM-403/405 User's Guide for
details.
1.Make sure that the printer is turned off.
2.Plug the cable connector (provided with the direct connection
display module) securely into the printer's display module
connector until it clicks.
CAUTION:
Do not connect this cable to the drawer kick out connector,
which is on the other side of the interface connector.
Also do not connect a telephone line to the display module
connector.
Setting Up the Printer 1-5
Note:
To remove the cable, squeeze the connector and pull it out.
Connecting the Power Supply
When the printer is used as a single unit, not connected to an
intelligent module, use the optional EPSON PS-170 power supply
for your printer.
When the printer is connected to an intelligent module, the power
is supplied by the intelligent module. See the IM-403/405 User's Guide for details.
CAUTION:
Make sure that you use the EPSON PS-170 power supply.
When connecting or disconnecting the power supply from
the printer, make sure that the power supply is not plugged
into an electrical outlet.
1. Make sure that 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 that the
voltage required by the power supply matches that of your
electrical outlet.
CAUTION:
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.
1-6 Setting Up the Printer
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 that the power
supply's power cord is unplugged; then grasp the connector at the
arrow and pull it straight out.
Grounding the Printer
When you use the printer as a single unit (not connected to an
intelligent module), you need an appropriate ground wire to
ground your printer.
1. Make sure that the printer is turned off.
2. Connect the ground wire to the printer using the FG screw on
the bottom of the printer, as shown.
Setting Up the Printer 1-7
Installing the Ribbon Cassette
Use Epson ERC-31 (P) ribbon cassette for your printer.
CAUTION:
Never turn the ribbon cassette's feed knob in the opposite
direction of the arrow marked on the cassette.
1. Turn on the printer and open the printer cover.
2. Turn the ribbon cassette's knob two or three times in the
direction of the arrow to take up any slack in the ribbon.
Tab
3. Insert the ribbon cassette in the printer and rotate the cassette's
knob two or three more times as shown below. This is
necessary to place the ribbon in the correct position.
1-8 Setting Up the Printer
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