Epson U375P - TM B/W Dot-matrix Printer Quick setup guide

TM-U375/TM-U375 P
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EPSON
Guide to
TM-U375/U375P
SEIKO EPSON CORPORATION
®
400609200

The programming examples in this manual are provided for the sole purpose of illustrating the
functions of the products. Seiko Epson Corporation makes no warranty, either expressed or implied,
as to their reliability and appropriateness for other uses.
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© 1996 by Seiko Epson Corporation, Nagano, Japan.
ESC/POS™ Information Manual
Guide to TM–U375/U375P
9603-01
SEIKO EPSON CORPORATION
SYSTEM DEVICE DIVISION
2070 Kotobuki Koaka, Matsumoto-shi, Nagano-ken 399, Japan

Rev. A i
Introduction
ESC/POS
The market for store automation equipment is changing rapidly with the widespread
introduction of POS (point of sale) terminals. These terminals are now appearing even in small
retail stores and specialty shops. They occupy a secure position in the range of applications
available for personal computers.
As more personal computers come to be used as POS terminals, the demand for matching
standardized peripheral devices is expected to rise. At present, however, many of the competing
POS terminal printer displays on the market employ mutually incompatible command sets. This
imposes limits on the expandability and range of applications possible with PC-based systems.
There is a need for a new command set designed to provide the expandability and universal
applicability demanded by the market.
To meet this need, Seiko Epson Corporation proposes the adoption of a newly developed
command set to standardize POS terminal peripheral devices: ESC/POS (Epson Standard Code
for Point of Sale).
The aim when developing ESC/POS was to create a set of control codes that could be used to
operate any output device connected to a POS terminal. These new codes are intended to replace
the mutually incompatible command sets previously in use.
TM/DM series models already support ESC/POS, and they have been evaluated highly in the
marketplace.
Seiko Epson Corporation plans to produce new models in the TM/DM series offering ESC/POS
support and to continue to work for the standardization of the entire POS environment to
promote the dissemination of ESC/POS.
About This Manual
❏Chapter 1 contains a table of supported commands, descriptions of all the commands
arranged by function with program examples and print samples, and character code tables.
❏Chapter 2 contains an example showing procedures and a program for combining system
processes with the TM-U375, DM-D202II, and a drawer.
❏Chapter 3 contains a table of the commands listed by function type and a table showing
which commands are supported by various EPSON printers.

ii Rev. A
Features
The TM-U375 and TM-U375P are high-performance POS printers that can print on slip,
validation, and journal paper. The printers have the following features:
❏World’s smallest multi-function 1.5 station printer.
❏High-speed printing using logic seeking.
❏Easy problem handling (e.g., paper jams or objects dropped into the printer) via a clamshell
mechanism.
❏Two cut-sheet entrances: from above for validation paper and from the front for slip paper.
❏Both journal and receipt printing with pressure-sensitive paper.
❏Free-format printing in page mode.
❏Various check printing patterns.
❏Logic seeking and page mode for check printing.
❏Movable platen for easy paper insertion.
❏Paper load switch for easy paper roll loading.
❏Control capability for two drawers.
❏Selectable character size (7 ×9 or 5 ×9 font).
❏Command protocol based on the ESC/POS
TM
standard.
❏Automatic Status Back (ASB) function that automatically transmits changes in printer status.
❏EPSON intelligent module connection (TM-U375 only).
❏EPSON customer display series connection (TM-U375 only).
Options and Accessories
❏EPSON power supply unit, PS-150 (not required when the TM-U375 (only) is connected to
an intelligent module).
❏Direct connection display modules, DM-D102 and DM-D203 (for use with TM-U375 only).
❏Pass-through customer display modules, DM-D101II and DM-D202II (for use with TM-U375
only).
❏EPSON ribbon cassette, ERC-38.

Rev. A iii
Specifications
❏Printing specifications
Printing method: 9-pin, serial impact dot matrix
Printing speed: Approximately 3.5 LPS
(40 columns, 16 CPI, continuous printing)
Approximately 5.4 LPS
(20 columns, 16 CPI, continuous printing)
Number of printable columns: 40/33
❏Character specifications
Character fonts: 7 ×9/5 ×9
Character pitch: 16/13.3 CPI
Character size: 1.24(W) ×3.1(H) mm/1.56(W) ×3.1(H) mm
Character sets: ASCII: 95 characters
International: 32 characters
Extended graphics: 128 characters ×6 pages
❏Paper specifications
Paper size: Paper roll: 75.5-76.5(W) mm × 83.0 mm diameter
Slip paper: 70(W) ×160(L) mm – 182(W) ×257(L) mm
Validation paper: 135(W) ×70(L) mm – 182(W) ×257(L) mm
Thickness: Paper roll: 0.06 mm – 0.085 mm
Slip paper: 0.09 mm – 0.31 mm
❏Interface: RS-232 (serial interface)
or
IEEE-1284 (parallel interface)
❏Data buffer: 4K or 40 bytes (selectable by DIP switch)

iv Rev. A
Contents
Chapter 1 Command Descriptions
Using Bit Value Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Print Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Line Spacing Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Character Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Panel Button Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Paper Sensor Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Printing Paper Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
Print Position Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Bit-Image Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
Status Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32
Mechanism Control Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40
Miscellaneous Function Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42
Character Code Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-48
Chapter 2 Application
Chapter 3 Command Reference
Command Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Reference Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Rev. A Command Descriptions 1-1
TM–U375/U375P Information Manual
Chapter 1
Command Descriptions
Following this table are all the commands organized by function and described with program
examples and print samples. The print samples are images of the printing results of the program
examples; they do not represent actual printing.
Supported Commands
Command Name Function Type Page
Number
HT Horizontal tab Print position 1-27
LF Print and line feed Print 1-4
FF
Print and eject cut sheet (in standard mode)
Print and return to standard mode (in page
mode)
Print 1-5
CR Print and carriage return Print 1-4
CAN Cancel print data in page mode Character 1-17
DLE EOT Real-time status transmission Status 1-36
DLE ENQ Real-time request to printer Miscellaneous function 1-46
ESC SP Set right-side character spacing Character 1-9
ESC ! Select print mode(s) Character 1-13
ESC $ Set absolute print position Print position 1-24
ESC % Select/cancel user-defined character set Character 1-10
ESC & Define user-defined characters Character 1-10
ESC ✻Select bit-image mode Bit image 1-30
ESC – Turn underline mode on/off Character 1-14
ESC 2 Select default line spacing Line spacing 1-7
ESC 3 Set line spacing Line spacing 1-7
ESC < Return home Mechanism control 1-40
ESC = Select peripheral device Miscellaneous function 1-45
ESC ? Cancel user-defined characters Character 1-10
ESC @ Initialize printer Miscellaneous function 1-43
ESC C Set cut sheet eject length Line spacing 1-8
ESC D Set horizontal tab positions Print position 1-27
ESC E Turn emphasized mode on/off Character 1-15
ESC G Turn double-strike mode on/off Character 1-15
ESC J Print and feed paper Print 1-6
ESC L Select page mode Miscellaneous function 1-46
ESC R Select an international character set Character 1-11
1
2

1-2 Command Descriptions Rev. A
ESC T Select print direction in page mode Print position 1-29
ESC U Turn unidirectional printing mode on/off Mechanism control 1-41
ESC V Turn 90°clockwise rotation mode on/off Character 1-17
ESC W Set printing area in page mode Print position 1-28
ESC \ Set relative print position Print position 1-24
ESC a Select justification Print position 1-25
ESC c 0 Select paper type(s) for printing Printing paper 1-21
ESC c 1 Select paper type(s) for command settings Printing paper 1-22
ESC c 3 Select paper sensor(s) to output paper-end
signals Paper sensor 1-20
ESC c 4 Select paper sensor(s) to stop printing Paper sensor 1-19
ESC c 5 Enable/disable panel buttons Panel button 1-18
ESC d Print and feed
n lines Print 1-6
ESC f Set cut sheet wait time Printing paper 1-23
ESC p Generate pulse Miscellaneous function 1-45
ESC q Paper release Mechanism control 1-41
ESC t Select character code table Character 1-12
ESC u Transmit peripheral device status Status 1-39
ESC v Transmit paper sensor status Status 1-40
ESC { Turn upside-down printing mode on/off Character 1-16
GS ✻Define downloaded bit image Bit image 1-31
GS / Print downloaded bit image Bit image 1-31
GS E Select head control method Miscellaneous function 1-43
GS I Transmit printer ID Miscellaneous function 1-44
GS L Set left margin Print position 1-26
GS P Set horizontal and vertical motion units Miscellaneous function 1-42
GS W Set printing area width Print position 1-26
GS a Enable/disable Automatic Status Back (ASB) Status 1-33
GS r Transmit status Status 1-35
Command Name Function Type Page
Number

Rev. A Command Descriptions 1-3
TM–U375/U375P Information Manual
Using Bit Value Tables
For each command that has a complex method of determining the variable n, there is a table showing
how to calculate the variable in three numbering systems: binary, hexadecimal, and decimal.
When you look at the table, first find the value of each component of the variable. Then add the
values of the components together to determine the value of the variable n.
For example, here is how you would use the table below, which selects the print mode, to combine
double height, double width, and underline. In the table, you see that bit 4 on (or hex 10 or decimal
16) turns on double height, bit 5 on (or hex 20 or decimal 32) turns on double width, and bit 7 on (or
hex 80 or decimal 128) turns on underline mode.
To combine all three, turn on bits 4, 5, and 7, which is 10110000 in binary. Or you can add the hex
values 10, 20, and 80 for the hex sum of B0, or you can add the decimal values 16, 32, and 128 for the
decimal value of 176.
Therefore, you send the following to turn on double height, double width, and underline, depending
on the numbering system used:
ASCII ESC ! n
Hex 1B 21 B0
Decimal 28 33 176
Note that the program examples throughout this chapter use decimal numbers, but binary, decimal,
and hexadecimal numbers all have the same printing results.
Bit Off/On Hex Decimal Function
0Off 00 0 Character font 5 x 9 selected.
On 01 1 Character font 7 x 9 selected.
1, 2 — — — Undefined.
3Off 00 0 Emphasized mode not selected.
On 08 8 Emphasized mode selected.
4Off 00 0 Double-height mode not selected.
On 10 16 Double-height mode selected.
5Off 00 0 Double-width mode not selected.
On 20 32 Double-width mode selected.
6 — — — Undefined.
7Off 00 0 Underline mode not selected.
On 80 128 Underline mode selected.