Custom Audio Electronics TM-U925 User manual

TM-U925
Operator’s Manual
MICR Option Included
400485701

Printer parts
Control panel
1
14 25
13
161
2
3
18
POWER
ERROR
RECEIPT
OUT
JOURNAL
OUT
SLIP
RECEIPT
FEED
SLIP FEED
Printer cover Control panel
Cover open button
Power switch
Interface connector
Drawer connector
Power connector
DIP switches are on
the bottom
Display connector
POWER
ERROR
RECEIPT
OUT
JOURNAL
OUT
SLIP
RECEIPT
FEED
SLIP FEED
POWER light
ERROR light
RECEIPT OUT light
SLIP light
RECEIPT FEED button
SLIP FEED button

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, 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 is a registered trademark of Seiko Epson Corporation.
ESC/POS is a trademark of Seiko Epson Corporation.
NOTICE: The contents of this manual are subject to change without notice.
Copyright © 1995 by Seiko Epson Corporation, Nagano, Japan.

ii
Product Name: Printer
Type Name: M62UA
Conforms to the following Directive and Norms
Directive 89/336/EEC
EMI: EN 55022 (1986) Class B
EMC: EN 50082-1 (1992)
IEC 801-2 level 2
IEC 801-3 level 2
IEC 801-4 level 2
Directive 90/384/EEC
EN45501: (1992)
DECLARATION OF CONFORMITY FOR CE MARKING

iii
FCC CLASS A
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.
WARNING
The connection of a non-shielded printer interface cable to this printer will invalidate
the FCC Verification of this device and may cause interference levels which exceed
the limits established by the FCC for this equipment.
You are cautioned that changes or modifications not expressly approved by the
party responsible for compliance could void your authority to operate the
equipment.
FOR CANADIAN USERS
This Class A digital apparatus meets all requirements of the Canadian Interference-
Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigenves du Règlement
sur le matériel brouileur du Canada.
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 1/144 inch.
❏Selectable receive buffer size (32 bytes or 2K bytes).
❏Slip ejection.
❏Command protocol based on the ESC/POS™ standard.
❏ASB (Automatic Status Back) function that automatically transmits changes in
printer status.
❏EPSON®intelligent module connection.
❏EPSON customer display series connection.
❏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-150 (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.
❏Chapter 5 describes all of the printer’s commands.
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.

vii
Contents
Chapter1 Setting Up the Printer
Opening and Closing the Printer Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Removing the protective material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Connecting the Printer to Your Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Connecting the Printer to the Drawer Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Connecting to a Direct Connection Display Module . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Connecting the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Grounding the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Installing the Ribbon Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Installing the Paper Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Running the self test with roll paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Running the self test with slip paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Setting the DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
DIP switch functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Changing the DIP switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Adjusting the Paper Near End Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Chapter 2 Using the Printer
Operating the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Slip Paper Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Using the Power Switch Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Using the MICR Reader (Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Reading MICR characters on personal checks . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Chapter 3 Troubleshooting
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
General problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Printing problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Paper handling problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Cleaning the MICR Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Hexadecimal Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

viii
Chapter 4 Reference Information
Printing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Character Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Ribbon Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
MICR Specifications (Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
MICR use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Notes on MICR use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Paper Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
EMI and Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Character Code Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Chapter 5 Commands
Command Notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Control Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Additional Commands for the Optional MICR Reader . . . . . . . . . . . . . . . . . . . . . . 5-40
Ignored Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-50

Setting Up the Printer 1-1
Chapter 1
Setting Up the Printer
Opening and Closing the Printer Cover
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.
2
OPEN
1
OPEN
CLOSE

1-2 Setting Up the Printer
Unpacking
Your printer box should include these items. If any items are
damaged or missing, please contact your dealer for assistance.
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.
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.
Printer
Ribbon Paper roll
Hexagonal lock screws Caution label Power switch
cover

Setting Up the Printer 1-3
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.

1-4 Setting Up the Printer
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.

Setting Up the Printer 1-5
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.

1-6 Setting Up the Printer
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-150 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-150 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.

Setting Up the Printer 1-7
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.

1-8 Setting Up the Printer
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.
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.
Tab

Setting Up the Printer 1-9
Make sure that the ribbon is installed in front of the print head
without wrinkles or creases. If it is hard to see, open the print
head cover as described in Chapter 3.
If the ribbon is not installed correctly, remove the cassette as
described below and repeat steps 2 and 3 above.
Note:
To remove the ribbon cassette, grasp the ribbon cassette's tab and
pull it out of the printer. See the illustration in step 2 above for the
location of the tab.
IInstalling the Paper Roll
Use a paper roll that matches the printer's specifications. See
Chapter 4 for paper specifications.
1. Make sure that the edge of the paper is straight, as shown on
the left side of the illustration.
2. Turn on the printer and open the printer cover.

1-10 Setting Up the Printer
3. Insert a paper roll, as shown below.
4. Insert the tip of the paper into the paper inlet and push it in
until it is automatically detected and fed into the printer.
5. Tear off the paper on the cutter. If the paper was not fed far
enough, press the RECEIPT FEED button to feed additional
paper.
Correct
Wrong

Setting Up the Printer 1-11
Note:
To remove the paper roll, hold down the paper release lever (marked
PRESS) and pull out the paper roll in the direction shown in the
illustration.
Self Test
The self test lets you know if your printer is operating properly.
You can run the self test with either roll paper or slip paper.
Running the self test with roll paper
1. Make sure the printer is turned off and the printer cover is
closed properly.
2. While holding down the RECEIPT FEED button, turn on the
printer to begin the self test. The self test prints the printer
settings and then pauses. (The RECEIPT OUT light blinks.)
3. Press the RECEIPT FEED button to continue printing. The
printer prints a pattern using the built-in character set.
4. The self test automatically ends after printing the following:
*** completed ***
Paper release lever