Epson U200 - TM B/W Dot-matrix Printer Quick setup guide

TM U200/U200P
Using this online technical guide
The words on the left side of this screen are
bookmarks
for all the
topics in this guide.
Use the
scroll bar
next to the bookmarks to find any topic you
want. Click a bookmark to instantly jump to its topic. (If you wish,
you can increase the size of the bookmark area by dragging the
dividing bar to the right.)
Use the
zoom
tools to magnify or reduce the page display.
Click the
Find
button if you want to search for a particular term.
(However, using the bookmarks is usually quicker.)
Complete online documentation for Acrobat Reader is located in the Help directory for Acrobat Reader.

EPSON
Guide to
TM-U200/U200P
SEIKO EPSON CORPORATION
®
400549800

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, 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 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–U200/U200P
9602-00
SEIKO EPSON CORPORATION
SYSTEM DEVICE DIVISION
2070 Kotobuki Koaka, Matsumoto-shi, Nagano-ken 399, Japan

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 several commands used in a program for receipt
printing.
❏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-U200/U200P series of high-quality POS printers print on roll paper. The printers have
the following features:
❏Compact and lightweight.
❏High throughput using bidirectional, minimum distance printing.
❏Semi-automatic paper loading capability.
❏ASB (Automatic Status Back) function that automatically transmits changes in printer status.
❏Wide selections for the user’s purposes by the different features of the TM-U200/U200P
printers, as follows:
Options and Accessories
❏Paper roll near-end sensor
❏Direct connection display modules, DM-D102 and DM-D203.
❏EPSON power supply unit, PS-150.
❏EPSON ribbon cassette, ERC-38 (P) and ERC-38 (B).
Printer Features
TM-U200B/PB The auto-cutter unit is standard equipment.
TM-U200D/PD Does not include the auto-cutter or take-up units.

Rev. A iii
Specifications
❏Printing specifications
Printing method: 9-pin, serial impact dot matrix
Printing speed: Approximately 3.5 LPS (when printing 40 columns using the
the 7 ×9 font with 3-half dot spacing)
Number of printable columns: 33/40 (when using 3-half dot spacing)
35/42 (when using 2-half dot spacing)
❏Character specifications
Character fonts: 9 ×9/7 ×9
Character pitch: 13.3/16 CPI (when using 3-half dot spacing)
14.5/17.8 CPI (when using 2-half dot spacing)
Character size: 1.2 (W) ×3.1 (H) mm
1.6 (W) x 3.1 (H) mm
Character sets:
ASCII: 95 characters
International: 32 characters
Extended graphics: 128 characters ×6 pages
❏Paper specifications
Paper size: Paper roll: 76 mm +/- 0.5 (W) mm × 83.0 mm diameter
Thickness: Normal Paper: 0.06 mm – 0.085 mm
Pressure-sensitive paper: 0.05 mm – 0.08 mm
(Total Thickness: 0.2 mm or less)
❏Interface: RS-232 (TM-U200B/D serial interface)
or
IEEE 1284 (TM-U200PB/PD parallel interface)
❏Data buffer: Maximum approximately 1k bytes

iv Rev. A
TM-U200D/U200PD
TM-U200B/U200PB

Rev. A Command Descriptions 1-1
TM–U200/U200P Information Manual
Chapter 1
Command Descriptions
Following this table are all the commands organized by function and described with program
examples and print samples.
Supported Commands
Command Name Function type Page
number
HT Horizontal tab Print position 1-20
LF Print and line feed Print 1-4
CR Print and carriage return Print 1-4
DLE EOT Real-time status transmission Status 1-27
DLE ENQ Real-time request to printer Miscellaneous function 1-34
ESC SP Set right-side character spacing Character 1-8
ESC ! Select print mode(s) Character 1-14
ESC % Select/cancel user-defined character set Character 1-9
ESC & Define user-defined characters Character 1-9
ESC ✻Select bit-image mode Bit image 1-21
ESC – Turn underline mode on/off Character 1-15
ESC 2 Select default line spacing Line spacing 1-7
ESC 3 Set line spacing Line spacing 1-7
ESC < Return home Mechanism control 1-30
ESC = Select peripheral device Miscellaneous function 1-33
ESC ? Cancel user-defined characters Character 1-9
ESC @ Initialize printer Miscellaneous function 1-31
ESC D Set horizontal tab positions Print position 1-20
ESC E Turn emphasized mode on/off Character 1-15
ESC G Turn double-strike mode on/off Character 1-16
ESC J Print and feed paper Print 1-5
ESC K Print and reverse feed Print 1-5
ESC R Select an international character set Character 1-12
ESC U Turn unidirectional printing mode on/off Mechanism control 1-30
ESC a Select justification Print position 1-21
ESC c 3 Select paper sensor(s) to output paper-end
signals Paper sensor 1-18
ESC c 4 Select paper sensor(s) to stop printing Paper sensor 1-18
ESC c 5 Enable/disable panel buttons Panel button 1-17
ESC d Print and feed
n
lines Print 1-6

1-2 Command Descriptions Rev. A
❏The following commands are effective only when 40 bytes is selected as the receive buffer
size. The size of the receive buffer is selected by the DIP switches.
❏Refer to the GS z 0 command for changing roll paper.
❏The functions of these commands are different, depending on the printer models. O
indicates supported commands and X indicates unsupported (ignored) commands.
ESC e Print and reverse feed n
lines Print 1-6
ESC p Generate pulse Miscellaneous function 1-33
ESC t Select character code table Character 1-13
ESC { Turn upside-down printing mode on/off Character 1-16
GS I Transmit printer ID Miscellaneous function 1-32
GS V Select cut mode and cut paper Mechanism control 1-30
GS a Enable/disable Automatic Status Back (ASB) Status 1-22
GS r Transmit status Status 1-26
GS z 0 On-line recovery wait time Miscellaneous function 1-35
Command Name
HT Horizontal tab
ESC % Select/cancel user-defined character set
ESC & Define user-defined characters
ESC ? Cancel user-defined characters
ESC D Set horizontal tab positions
Command Model
TM-U200B TM-U200PB TM-U200D TM-U200PD
ESC c 3 XOXO
GS V (1) OO X X
GS V (2) OO
Only paper feed is
executed.
Only paper feed is
executed.
Command Name Function type Page
number

Rev. A Command Descriptions 1-3
TM–U200/U200P 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 sets 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
1Off 00 0 Character font 9 x 9 selected.
On 01 1 Character font 7 x 9 selected.
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.

1-4 Command Descriptions Rev. A
Print Commands
The TM-U200/U200P printers support the following commands for printing characters and
advancing paper:
Command Name
LF Print and line feed
CR Print and carriage return
ESC J Print and feed paper
ESC K Print and reverse feed
ESC d Print and feed nlines
ESC e Print and reverse feed nlines
LF
[Name] Print and line feed
[Format] ASCII LF
Hex 0A
Decimal 10
LF prints the data in the print buffer and feeds one line. The amount of paper fed per line is based on
the value set using the line spacing command. The default setting is 1/6 inch.
CR
[Name] Print and carriage return
[Format] ASCII CR
Hex 0D
Decimal 13
Program Example Print Sample
PRINT #1, "AAAAA"; CHR$(&HA); AAAAA
PRINT #1, "BBBBB"; CHR$(&HA); BBBBB

Rev. A Command Descriptions 1-5
TM–U200/U200P Information Manual
When auto line feed is enabled, CR functions in the same way as LF. When auto line feed is disabled,
CR prints the data in the print buffer and does not feed the paper. The DIP switch setting enables or
disables auto line feed. When using the serial interface, CR executes printing only.
ESC J n
[Name] Print and feed paper
[Format] ASCII ESC J n
Hex 1B 4A n
Decimal 27 74 n
[Range] 0 ≤ n ≤ 255
ESC J n prints the data in the print buffer and feeds the paper [nx (1/144)] inches. This means that the
printer can feed the paper in half-dot units. This command is used to temporarily feed a specific
length without changing the line spacing set by other commands.
ESC K n
[Name] Print and reverse feed
[Format] ASCII ESC K n
Hex 1B 4B n
Decimal 27 75 n
[Range] 0 ≤ n ≤ 48
Program Example Print Sample
PRINT #1, "AAAAA"; CHR$(&HD); AAAAA ←Auto line feed enabled
PRINT #1, " BBBBB"; CHR$(&HA); BBBBB
AAAAABBBBB ←Auto line feed disabled
Program Example Print Sample
PRINT #1, "AAAAA"; CHR$(&HA);
PRINT #1, "BBBBB"; CHR$(&H1B);"J";CHR$(100);
PRINT #1, "CCCCC"; CHR$(&HA);
PRINT #1, "DDDDD"; CHR$(&HA);
AAAAA
BBBBB
CCCCC
DDDDD
ESC J used to print one line and then advance
the paper by 100/144 inch

1-6 Command Descriptions Rev. A
ESC K n prints the data in the print buffer and feeds the paper [n×(1/144)] inches in the reverse
direction. This means that the printer can feed paper in half-dot units in the reverse direction. The
command is used to temporarily feed a specific length without changing the line spacing set by other
commands. Only the TM-U200D/PD supports this command.
ESC d n
[Name] Print and feed nlines
[Format] ASCII ESC d n
Hex 1B 64 n
Decimal 27 100 n
[Range] 0 ≤ n ≤ 255
ESC d n prints the data in the print buffer and feeds nlines. The amount of paper fed per line is based
on the value set using the line spacing command. The maximum paper feed amount is 40 inches. The
default setting of the paper feed amount is 1/6 inch.
ESC e n
[Name] Print and reverse feed nlines
[Format] ASCII ESC e n
Hex 1B 65 n
Decimal 27 101 n
[Range] 0 ≤ n ≤ 255
Program Example Print Sample
PRINT #1, "AAAAA"; CHR$(&HA);
PRINT #1, "BBBBB"; CHR$(&H1B);"K";CHR$(24);
PRINT #1, " CCCCC"; CHR$(&HA);
AAAAACCCCC
BBBBB ESC K used to print one line and then
reverse feed the paper by 24/144 inch
Program Example Print Sample
PRINT #1, "AAAAA"; CHR$(&HA);
PRINT #1, "BBBBB"; CHR$(&H1B);"d";CHR$(6);
PRINT #1, "CCCCC"; CHR$(&HA);
AAAAA
BBBBB
CCCCC
ESC d used to print one line and then
advance the paper six lines

Rev. A Command Descriptions 1-7
TM–U200/U200P Information Manual
ESC e n prints the data in the print buffer and feeds nlines in the reverse direction. The amount of
paper fed per line is based on the value set using the line spacing command. The maximum reverse
paper feed amount is 48/144 inch. The default setting of the paper feed amount is 1/6 inch. Only the
TM-U200D/PD supports this command.
Line Spacing Commands
The TM-U200/U200P printers support the following commands for setting line spacing. These
commands only set the line spacing; they do not actually advance the paper. The line spacing set
using these commands affects the results of the LF,ESC d, and ESC e commands, or when the paper
is advanced using the PAPER FEED button.
Command Name
ESC 2 Select default line spacing
ESC 3 Set line spacing
ESC 2
[Name] Select default line spacing
[Format] ASCII ESC 2
Hex 1B 32
Decimal 27 50
ESC 3 n
[Name] Set line spacing
[Format] ASCII ESC 3 n
Hex 1B 33 n
Decimal 27 51 n
[Range] 0 ≤ n ≤ 255
ESC 2 sets the line spacing to 1/6 inch. This is equivalent to 12 dots.
Program Example Print Sample
PRINT #1, "AAAAA"; CHR$(&HA);
PRINT #1, "BBBBB"; CHR$(&H1B);"e";CHR$(1);
PRINT #1, " CCCCC"; CHR$(&HA);
AAAAACCCCC
BBBBB
Paper reverse fed one line after
printing line of Bs

1-8 Command Descriptions Rev. A
ESC 3 n sets the line spacing to [n×(1/144)] inches. The default setting of the paper feed amount is
1/6 inch (n=24). The line spacing can be set in half-dot units using this command.
Character Commands
The TM-U200/U200P printers support the following commands for setting character font and size.
Command Name
ESC SP Set right-side character spacing
ESC % Select/cancel user-defined character set
ESC & Define user-defined characters
ESC ? Cancel user-defined characters
ESC R Select an international character set
ESC t Select character code table
ESC ! Select print mode(s)
ESC - Turn underline mode on/off
ESC E Turn emphasized mode on/off
ESC G Turn double-strike mode on/off
ESC { Turn upside-down printing mode on/off
ESC SP n
[Name] Set right-side character spacing
[Format] ASCII ESC SP n
Hex 1B 20 n
Decimal 27 32 n
[Range] 0 ≤ n ≤ 255
Program Example Print Sample
FOR n=22 TO 32 STEP 2
PRINT #1, CHR$(&H1B);"3";CHR$(n); ←Set line spacing
PRINT #1, "AAAAA"; CHR$(&HA);
NEXT n
PRINT #1, CHR$(&H1B);"2"; ←Set default line spacing
PRINT #1, "BBBBB"; CHR$(&HA);
PRINT #1, "CCCCC"; CHR$(&HA);
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
BBBBB
CCCCC
22/144-inch (11-dot) line spacing
24/144-inch (12-dot) line spacing
26/144-inch (13-dot) line spacing
28/144-inch (14-dot) line spacing
30/144-inch (15-dot) line spacing
32/144-inch (16-dot) line spacing
1/6-inch (12-dot) line spacing

Rev. A Command Descriptions 1-9
TM–U200/U200P Information Manual
ESC SP n sets the right-side character spacing in [n×(1/160)] inches. It is used to change the spacing
between characters. The default right-side character spacing is set to 0 (n=0). This command can set
the right-side character spacing in half-dot units.
ESC % n
[Name] Select/cancel user-defined character set
[Format] ASCII ESC % n
Hex 1B 25 n
Decimal 27 37 n
[Range] 0 ≤ n ≤ 255
ESC & y c1 c2 [x1 d1 ... d(y×x1)] ... [xk d1 ... d(y×xk)]
[Name] Define user-defined characters
[Format] ASCII ESC & y c1c2[x1 d1 ... d(y×x1)] ... [xk d1 ... d(y× xk)]
Hex 1B 26 y
c1 c2 [x1 d1 ... d(y×x1)] ... [xk d1 ... d(y× xk)]
Decimal 27 38 y c1 c2 [x1 d1 ... d(y×x1)] ... [xk d1 ... d(y× xk)]
[Range] y= 2
32 ≤c1 ≤c2 ≤126
0 ≤x≤12 (9 ×9 font)
0 ≤x≤9 (7 ×9 font)
0 ≤d1...d (y ×x) ≤255
ESC ? n
[Name] Cancel user-defined characters
[Format] ASCII ESC ? n
Hex 1B 3F n
Decimal 27 63 n
[Range] 32 ≤ n ≤ 126
Program Example Print Sample
PRINT #1, CHR$(&H1B);"";CHR$(0); ←Character spacing
set to 0
PRINT #1, "AAAAA"; CHR$(&HA);
PRINT #1, CHR$(&H1B);" ";CHR$(6); ←Character spacing
set to 6
PRINT #1, "BBBBB"; CHR$(&HA);
PRINT #1, CHR$(&H1B);" ";CHR$(12); ←Character spacing
set to 12
PRINT #1, "CCCCC"; CHR$(&HA);
AAAAA ←0-inch right-side character spacing
BBBBB ←6/160-inch right-side character spacing
CCCCC
←
12/160-inch right-side character spacing

1-10 Command Descriptions Rev. A
ESC % n selects or cancels the user-defined character set. When the LSB (least significant bit) of nis 1,
the user-defined character set is selected. When it is 0, the internal character set is selected; this is the
default setting.
ESC & y c1 c2 [x1 d1 ... d(y×x1)] ... [xk d1 ... d(y×xk)] defines user-defined characters from character
code c1 to c2. yand xare the configuration of a user-defined character. yspecifies the number of bytes
in the vertical direction. xspecifies the number of bytes in the horizontal direction. Character code
range from ASCII code 20H (32) to 7EH (126) can be defined by c1 and c2. Up to 19 user-defined
characters can be defined. Data (d) specifies a bit printed to 1 and not printed to 0. At the default,
user-defined characters are not defined and the internal character set is printed. Once the user-
defined characters have been defined, they are available until ESC @ or ESC ? is executed; the user-
defined characters are redefined; the power is turned off; or the printer is reset.