The table below indicates which pages in this specification have been revised.
Before reading this specification, be sure you have the correct version of each page.
Enactment
B Change
C Change
D Change
E Change
F Change
G Change
H Change
I
Change
J Change
K Change
L Change
N.Asai
N.Asai
KawakamiN.Asai N.Asai
KawakamiN.Asai K.Itoh
N.Asai
I.Nakayama
I.Nakayama
I.Nakayama
Y.Matsumoto
Y.Matsumoto
T.Inakoshi-- Y.Ito
T.Inakoshi-- Y.Ito
N.Asai K.Itoh
N.Asai K.Itoh
N.Asai R.Kanai
-- R.Kanai
N.Asai R.Kanai
N.Asai R.Kanai
--
-- R.Kanai
R.Kanai
I
II
III
IV
V
VI
L 17 L 41 L
L 18 L 42 L
L 19 L 43 L
L 20 L 44 L
L 21 L 45 L
L 22 L 46 L
23 L 47 L
24 L 48 L
1
L
25 L 49
L
2 L 26 L 50 L
3 L 27 L 51 L
4 L 28 L 52 L
M Change 5 L 29 L 53 L
6 L 30 L 54 L
7 L 31 L 55 L
8 L 32 L 56 L
9 M 33 L 57 L
10 M 34 L 58 L
11 L 35 L 59 L
12 L 36 L 60 L
13 L 37 L 61 L
14 L 38 L 62 L
15 L 39 L 63 L
16 L 40 L 64 L
TITLE
TM-U210 series
ecification
S
(STANDARD)
Front Part
Cover
Rev.
Sheet Scope
General
Description
Table of
Contents Contents Appendix Total
1 6 - 3 3 103 11 127
Confidential
REVISION SHEET
The table below indicates which pages in this specification have been revised.
Before reading this specification, be sure you have the correct version of each page.
Figure 2.2.1, Figure 2.2.2, and Figure 2.2.3
Change of the figures for power supply connector.
•This command ..... printing model] is newly added.
I All
TITLE
• Descriptions for model type A/AM are added.
• "Confidential" is written on the header of all pages.
• Descriptions for a multilingual supporting model of the type AM are added.
TM-U210 series
Specification
(STANDARD)
Confidential
REVISION SHEET
REV. SHEET CHANGED CONTENTS
J All All pages are renumbered.
I Nondisclosure Agreement → Confidentiality Agreement IV Table of Contents are changed due to the reason below:
Section 2.3.10 (Newly added)
6.3 Exception processing (Deleted)
7,8 1.11 Applicable Standards
All descriptions are changed.
36 3.2.10 Page 19 (Newly added)
37-46 3.2.11 and 3.2.20 are renumbered.
62 6.3 Exception processing (Deleted)
63 6.4 → 6.3 (renumbered) 88 ESC t n
n=19 (Newly added)
K
L
M
TITLE
IV Table of Contents
3.3.3 DIP Switches (for type B/D) → 3.3.3 <Intentionally left blank>
3.3.4 DIP Switches (for type A/AM) → 3.3.4 DIP Switches
19 2.1.2.6 (Changed)
20 Table 2.1.5, Model type and pin 31 (Deleted)
47,48,49 3.3.3 DIP switches (for type B/D) (Deleted)
3.3.4 ... (For type A/AM) (Deleted)
Table 3.3.7 and 3.3.9, Off position of switch No.2, type A → Type A, B, D,
and type AM → type AM, BM, DM
Table 3.3.8, Function of switch No.3, Undefined → For internal use only (*1),
*1: ... 2-3 .... (Added)
All
V
15
52 Table 3.5.3 Unrecoverable Errors
App.12 APPENDIX F (deleted)
9, 10
Model name TM-U200 series → TM-U210 series Type A, AM →Type A (ANK supporting model, multilingual supporting
model)
Type B, BM →Type B (ANK supporting model, multilingual supporting
model)
Type D, DM →Type D (ANK supporting model, multilingual supporting
model)
All pages are renumbered.
Table of contents (changed)
• When pin 6 (DSR) is used. (for type B/D, DSW2-3: ON, for type A/AM, DSW2-7:
ON) → (deleted)
• When pin 25 (INIT) is used. (for type B/D, DSW2-4: ON, for type A/AM, DSW2-8:
ON) → (deleted)
R/W error (added)
1.11 EMI and Safety Standards Applied
Europe: CE marking EN50082-1 → EN55024
TM-U210 series
Specification
(STANDARD)
Sheet 6 of 6
Confidential
CONFIDENTIALITY AGREEMENT
BY USING THIS DOCUMENT, YOU AGREE TO ABIDE BY THE TERMS OF THIS AGREEMENT. PLEASE
RETURN THIS DOCUMENT IMMEDIATELY IF YOU DO NOT AGREE TO THESE TERMS.
1. This document contains confidential, proprietary information of Seiko Epson Corporation or its affiliates.
You must keep such information confidential. If the user is a business entity or organization, you must
limit disclosure to your employees, agents and contractors who have a need to know and who are also
bound by obligations of confidentiality.
2. On the earlier of (a) termination of your relationship with Seiko Epson, or (b) Seiko Epson’s request, you
must stop using the confidential information. You must then return or destroy the information, as directed
by Seiko Epson.
3. If a court, arbitrator, government agency or the like orders you to disclose any confidential information,
you must immediately notify Seiko Epson. You agree to give Seiko Epson reasonable cooperation and
assistance in resisting disclosure.
4. You may use confidential information only for the purpose of operating or servicing the products to which
the document relates, unless you obtain the prior written consent of Seiko Epson for some other use.
5. Seiko Epson warrants that it has the right to disclose the confidential information. SEIKO EPSON
MAKES NO OTHER WARRANTIES CONCERNING THE CONFIDENTIAL INFORMATION OR ANY
OTHER INFORMATION IN THE DOCUMENT, INCLUDING (WITHOUT LIMITATION) ANY
WARRANTY OF TITLE OR NON-INFRINGEMENT. Seiko Epson has no liability for loss or damage
arising from or relating to your use of or reliance in the information on the document.
6. You may not reproduce, store or transmit the confidential information in any form or by any means
(electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of
Seiko Epson.
7. Your obligations under this Agreement are in addition to any other legal obligations. Seiko Epson does
not waive any right under this Agreement by failing to exercise it. The laws of Japan apply to this
Agreement.
CAUTIONS
1. This document shall apply only to the product(s) identified herein.
2. No part of this document 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.
3. The contents of this document are subject to change without notice. Please contact us for the latest
information.
4. While every precaution has been taken in the preparation of this document, Seiko Epson Corporation
assumes no responsibility for errors or omissions.
5. Neither is any liability assumed for damages resulting from the use of the information contained herein.
6. 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 the 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.
7. 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.
TRADEMARKS
EPSON® and ESC/POS® are registered trademarks of Seiko Epson Corporation.
General Notice: Other product and company names used herein are for identification purposes only and may
be trademarks of their respective companies.
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
III
Confidential
This specification applies to the TM-U210 series.
General Description
Model type
ANK supporting
model (*1)
A
Multilingual
supporting model
(*2)
ANK supporting
model (*1)
B
Multilingual
supporting model
(*2)
ANK supporting
model (*1)
D
Multilingual
supporting model
(*2)
NOTES *1: ANK = alphanumeric characters
*2: Multilingual characters means that the printer can print with Japanese Kanji, Chinese
Kanji, Taiwanese Kanji, or Thai characters.
Two-color
printing
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes or No
(single)
Yes --
Autocutter
installed
--
Take-up device
installed
Yes ANK
Yes
-- ANK
--
-- ANK
--
Printing
characters
ANK +
Multilingual
characters
ANK +
Multilingual
characters
ANK +
Multilingual
characters
Interface
Serial /
Parallel
Serial /
Parallel
Serial /
Parallel
Serial /
Parallel
Serial /
Parallel
Serial /
Parallel
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
IIIII
Confidential
This printer was developed on the basis of the hild performance/casr design concept.
This printer, is a one-station printer that is light, and offers excellent reliability, The design of this
printer also emphasizes the satisfichon of the user needs.
• Compact and lightweight
• High-speed printing through logic seeking control
• Excellent reliability and long life due to adoption of a stepping motor both for moving the
carriage and for paper feeding
• Flexible paper feed pitch setting permits printing in accordance with any user-defined format
• Conforms with ESC/POS
• Built-in drawer-kick interface provides capability to drive two drawers
• Selectable character fonts (7 × 9, 9 × 9)
• Semi-automatic paper loading capability
• AC adapter provides a compact power supply
• Automatic status back (ASB) function that automatically transmits changes in printer status.
• Two-color printing (black and red) (2-color print version only)
• Built-in autocutter (for TM-U210 type A, type B)
• Takeup device installed (for TM-U210 type A)
These and other features make this printer highly suitable for the POS one-station printer market.
Features
®
; excellent universality of control
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
IIIIV
Confidential
TABLE OF CONTENTS
I. BASIC SPECIFICATIONS.................................................................................................................... 1
ADJUSTING THE AMOUNT OF ROLL PAPER REMAINING................App. 5
APPENDIX C: NOTES ON CHARACTER PRINTING .............................................................App. 6
APPENDIX D: NOTES ON USING THE DRAWER KICK-OUT CONNECTOR ......................App. 8
APPENDIX E: TRANSMISSION STATUS IDENTIFICATION................................................App. 11
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
1
VI
Confidential
I. BASIC SPECIFICATIONS
1.1 Printing Specifications
(1) Printing method
Serial impact dot-matrix
(2) Head wire configuration
9-pin serial configuration
(3) Printing directions
Bi-directional printing (logical seeking)
(4) Printing speed
Approx. 3.5 lps (40 column, 16 cpi)
Approx. 6.4 lps (16 column, 16 cpi)
(Excludes data transfer and processing time)
(lps: lines per second)
NOTES: 1. If the printing duty ratio is too high, the operation of the print head is stopped by
the duty limit. In such circumstances, the printing speeds shown above cannot
be guaranteed.
2. When select red-color or 2-color (black/red) combination printing, the printing
speed goes down compared to black-color printing. It is caused by the
switching operation in the printer.
(5) Characters per line
Refer to Table 1.2.1.
(6) Characters per inch
Refer to Table 1.2.1.
(7) Printing duty ratio
Refer to Appendix A.
(8) Two-color printing (2-color print version only):
Black and red colors are selectable.
1.2 Character Specifications
(1) Character types
Alphanumerics (95 characters)
Graphics (128 × 8 character tables; 11 tables for the multilingual supporting model)
International characters (32 characters)
The multilingual supporting model supports printing with one of the following characters:
Model No. Color Ribbon life (*1)
ERC-38 (P) Purple
ERC-38 (B) Black
ERC-38(B/R) Black/RedBlack: 1.5 million characters (with continuous printing at 25°C)
*1: The ribbon life is based on the following conditions:
• Character font: 7 x 9 font (with descenders)
• Printing pattern: ASCII 96-character rolling pattern
Refer to the printing example for the printing
pattern (Appendix Figure A-1 for ERC-38(P)/(B),
Figure A-2 for ERC-38(B/R).)
25°C
(2) External view of ribbon cassette: Refer to Figure. 1.3.1.
4 million characters (with continuous printing at 25°C {77°F})
3 million characters (with continuous printing at 25°C {77°F})
Red: 750,000 characters
(with continuous printing at 25°C {77°F})
26.2
73.8
124.5
[Units: mm]
Figure 1.3.1 External View of ERC-38 (P)/(B)
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
3 4
Confidential
Red
Black
Ribbon
73.8
124.5
[Units: mm]
Figure 1.3.2 External View of ERC-38 (B/R)
NOTE: Malfunctions and other problems may arise if a ribbon other than the specified ribbon
cassette is used. Seiko Epson does not warrant against problems arising from the use of
ribbons other than the specified one.
26.2
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
4 5
Confidential
1.4 Roll Paper Supply Unit
(1) Supply method
Drop-in method
(2) End detector
(a) Detection method By mechanical microswitch
(b) Detection position Positioned within the paper path for roll paper; detects the near
end of the roll paper
(3) Near end detector (Optional)
(a) Detection method By mechanical microswitch
(b) Inner diameter of paper roll core: 10.5 to 12.5 mm (Refer to Appendix B for details.)
Note: The standard version of this printer is not equipped with a mechanism that detects the
amount of roll paper remaining (a near-end detector), paper rolls may jam if the paper
roll core and paper are attached to each other by tape or glue may jam. Because of
this, be sure the printer detects the amount of roll paper remaining with the optional
near-end detector when the paper is attached in the core by tape or glue.
1.5 Paper Specifications
(1) Paper feeding method: Friction feed
(2) Paper feed interval: Initial setting: 1/6 inch
Can be set in units of 1/144th of an inch by command.
(3) Paper feed speed: Approx. 4.17 inches/second (25 lps)
(4) Paper dimensions
(a) Paper roll
Width 76 mm ± 0.5 mm {3” ± 0.02”}
Maximum diameter 83 mm {3.27”}
Core When there is no near-end detector, always be sure to use a
➀A Normal paper
Paper thickness 1 sheet 0.06 to 0.085 mm {0.0024 to 0.0033”}
Weight 52.3 to 64 g/m
(45 to 55 kg/1000 sheets/1091 x 788 mm)
➁Pressure-sensitive paper
Number of copies Original 1 sheet + up to two copy sheets (For type D only)
Original 1 sheet + one copy sheet
Thickness 0.05 to 0.08 mm {0.002 to 0.0031”} (thickness of one sheet);
combined, total thickness must be 0.2 mm {0.008”} or less
Recommended paper Paper by Mitsubishi - Carbonless paper (blue)
Top and middle sheets N40Hi ( paper thickness: 0.06 mm {0.0024”},
weight: 47.2 g/m
Bottom sheet N60 ( paper thickness: 0.08 mm {0.0031”},
weight: 68.0 g/m
(during continuous feeding)
(lps: lines per second)
paper roll where the core and the paper are not glued together
2
{14 to 17 lb}
2
{12.6 lb})
2
{18 lb})
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
5 6
Confidential
Note: When one original and two copies (a total of three sheets) are used in an operating
environment of 34°C {93°F} and 90% humidity, the paper roll may slightly curl.
(b) Copying capability
The copying capability is affected by the ambient temperature, and is guaranteed for the
temperature ranges shown in the table below.
Number of copies Guaranteed temperature range Affected model type
Original + two copies
Original + one copy
1.6 Takeup Device (For Type A)
A takeup device automatically takes the paper roll up in connection with a paper feed motor.
1.7 Autocuttor (For Type A/B)
Partial cut is executed by command.
Partial cut: Cutting with one point left uncut
10° ∼ 40°C {50° ∼ 164°F}
5° ∼ 50°C {41° ∼ 122°F}
Type D
Type A/B/D
1.8 Printing Area
(1) Roll paper
NOTES: 1. This dimension shows the distance from the manual cutter to the printing
Maximum of 200 dots, 400 positions
Figure 1.8.1 Printing Area
position.
2. The values shown for the printing area are the values calculated (between dot
EPSON
centers) according to the wire diameter (0.29 mm {0.0011”}).
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
6 7
Confidential
1.9 Receive Buffer
Either approximately 1KB or 40 bytes can be selected by DIP switch (for all model types except
multilingual supporting model)
Either 512KB or 40 bytes can be selected by DIP switch (for the multilingual supporting model).
1.10 Electrical Specifications
(1) Power supply operation
AC adapter included.
Select one of the following five types, depending on the specifications.
Settings and Shipment Input Voltage Range Model Name
Japan
North America
Europe (Germany)
Europe (U.K)
Australia
(2) Printer power consumption (except for during drawer-kick operation)
While operating 43 W avg.
While in standby 6 W avg.
Directive 89/336/EEC
EN55022 Class B
EN55024
IEC61000-4-2
IEC61000-4-3
IEC61000-4-4
IEC61000-4-5
IEC61000-4-6
IEC61000-4-11
Directive 90/384/EEC
EN45501
Safety: EN60950
North America: EMI: FCC/ICES-003 Class A
Safety: UL1950/CSA C22.2 No.950
Japan: EMC: VCCI Class A
Oceania: EMC: AS/NZS3548
Taiwan: EMC: Class B
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
M
L
NO.
SHEETNEXT
7 8
Confidential
Conditions of Acceptability
1) This component has been judged on the basis of the required spacing in the Standard for
Information Technology equipment, Including Electrical Business Equipment, UL 1950 and CSA
C22.2 No. 950, Sub-clause 2.9, which would cover the component itself if submitted for Listing.
2) This unit is intended to be supplied by a SELV circuit only.
3) The terminals and connectors have not been evaluated for field wiring.
Packaged AC Adapter:
Europe: CE Marking
Directive 89/336/EEC
EN55022 Class B
EN55024
IEC61000-4-2
IEC61000-4-3
IEC61000-4-4
IEC61000-4-5
IEC61000-4-6
IEC61000-4-11
Safety: EN60950
North America: Safety: UL1950/CSA C22.2 No.950
Japan: Electrical Appliance and Material Control Law
Oceania: Safety: AS3260
1.12 Reliability
(1) Life
Mechanism: 7,500,000 lines
Print head: 150 million characters (using an average of 2 dots/wire per character).
Print color switching: Refer to Appendix A 1) Print Duty.
Autocutter: 800,000 cuts
(2) MTBF 180,000 hours
(3) MCBF 18,000,000 lines
(The printing pattern is based on Appendix A 1) Print Duty).
End of life is defined as the point at which the component reaches the
beginning of the Wearout Period. Recommended paper must be used.
Failure is defined as a Random Failure occurring at the time of the
Random Failure Period.
This is an average failure interval based on failures relating to Wearout
and Random Failures up to the life of 7.5 million lines.
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
M
L
NO.
SHEETNEXT
8 9
,
,
Confidential
1.13 Environmental Specifications
(1) Temperature
During operation: 0 to 50°C {41° to 122°F}. (At 34°C {93°F} or higher, there are humidity
restrictions; refer to Figure 1.13.1.)
During storage: -10 to 50°C {14° to 122°F} (excludes paper and ribbon)
(2) Humidity
During operation: 10 to 90% (no condensation)
During storage: 10 to 90% (no condensation; excludes paper and ribbon)
90
80
60
40
Relative humidity (RH%)
20
10
0
Figure 1.13.1 Operating Temperature and Humidity Range
(3) Vibration resistance
While packed: Frequency 5 to 55 Hz
Acceleration Approximately 19.6 m/s
Sweep 10 minutes (half cycle)
Time One hour
Directions X, Y and Z
(4) Impact resistance
While packed: Packaging: Epson's standard packaging
Height 60 cm {2 feet}
Directions 1 corner, 3 edges, 6 sides
While not packed: Height: 5 cm {2”}
Directions 4 sides, supported on one side
Operating environment range
0102030
Ambient temperature (°C)
34°C
40
90%
40°C
65%
50°C, 35%
50
2
{2G}
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
9 10
Confidential
1.14 Printer Installation Stance Position
Install the printer horizontally. Make sure that it does not tilt more than 15°.
The printer must also be installed so that it does not move or vibrate during paper cutting or the
drawer kick-out operation.
Fastening tape is available as an option.
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
1011
Confidential
2. CONFIGURATION
2.1 Interface Specifications
2.1.1 RS-232 Serial Interface
2.1.1.1 Specifications
Data transmission: Serial
Synchronization: Asynchronous
Handshaking: DTR/DSR or XON/XOFF control
Signal levels: MARK = -3 to -15 V ... logic ‘1’ / OFF
SPACE = +3 to +15 V ... logic ‘0’ / ON
Baud rate: 4800, 9600 bps (bps: bits per second)
Data word length: 7 or 8 bits
Parity: None, even, odd
Stop bits: 1 or more (Data transmitted from the printer has 1 stop
bit (fixed)
Connector: D-SUB 25 (female) or equivalent
2.1.1.2 Online/Offline switching
The printer does not have an online/offline button. The printer goes online or offline under the
following conditions:
<Conditions to go offline>
1) Between the time when the power is turned on (including reset using the interface) and when
the printer is ready to receive data.
2) During the self-test.
3) During paper feeding using the FEED button.
4) Between the time when the printer stops printing due to a paper-end and when the online
recovery wait time finishes after loading paper.
5) When an error has occurred.
<Conditions to go online>
1) Automatically after the time when the power is turned on (including reset using the interface)
when the printer is ready to receive data.
2) Automatically after the self-test.
3) Automatically after the paper feeding is stopped by releasing the FEED button.
4) After the time when the paper loading is completed, using GS z 0 command. The operation
differs for each model type.
For types B/D: (default: t2 =0)
After the time when the FEED button is pressed while the PAPER OUT LED is blinking after
the paper loading is completed.
For types A: (default: t2 =1)
Automatically the time when 0.5 seconds passed after the paper loading is completed.
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
1112
Confidential
2.1.1.3 Interface connector terminal assignments and signal functions
Table 2.1.1 Interface Pin Assignments and Functions
Pin
No.
1
2 TXD Output Transmit data
3
4 RTS Output
6 DSR Input Indicates whether the host can receive data. SPACE indicates that the
7 SG – Signal ground
20 DTR Output 1) When DTR/DSR control is selected, this signal indicates whether
ON OFF
Off-line 1) The period from power-on (or initialization of the
2) During the self-test BUSY BUSY
3) During paper feeding using the FEED button ---- BUSY
5) During an error condition ---- BUSY
6) When the receive buffer is full (*1) BUSY BUSY
2) When XON/XOFF control is selected, this signal indicates whether
25 INIT Output Changing the DIP switch setting enables this signal to be used as a
Signal
Name
FG – Frame ground
RXD Input Receive data
Signal
Direction
Same as DTR signal (same as pin 20)
host can receive data, and MARK indicates that the host cannot
receive data. When DTR/DSR control is selected, the printer transmits
data after checking this signal (except when data is sent by DLE EOT,
GS a). When XON/XOFF control is selected, the printer does not
check this signal. Changing the DIP switch setting enables this signal
to be used as a reset signal for the printer The printer is reset when
the signal remains MARK for 1 ms or more.
the printer is BUSY.
SPACE indicates that the printer is READY to receive data, and
MARK indicates that the printer is BUSY.
DIP switch 1-8 switches conditions for BUSY.
The BUSY (MARK) condition is changed using DIP switch 1-8 as
follows:
Printer Status
mechanism due to resetting through the interface) until
the printer is ready to receive data.
4) When the printer stops due to a paper-end (ESC c 4).
the printer is properly connected and is ready to receive data.
SPACE indicates that the printer is properly connected and is
ready to receive data. This signal is always SPACE except during
the following periods:
• From power-on until the printer is ready to receive data.
• During the self-test.
reset signal for the printer. The printer is reset when the signal
remains SPACE for 1 ms or more.
Function
Dip Switch 1-8
Status
BUSY BUSY
---- BUSY
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
1213
Confidential
∗1 • The period from when the remaining space in the receive buffer drops to 16 bytes until
it increases to 32 bytes is called the “buffer full state.”
• Data received when the remaining space in the receive buffer is zero bytes is ignored.
2.1.1.4 XON/OFF transmission timing
When XON/OFF control is selected, the printer transmits XON or XOFF signals as follows.
Transmit timing depends on the setting of DIP switch 1-8
Table 2.1.2 XON/XOFF Transmission Timing
Printer Status
[XON
transmission]
2) When the receive buffer is released from the buffer-full state.
3) When the printer status changes from offline to online. ----
4) When the printer recovers from an error through a command. ---[XOFF 5) When the receive buffer is full.
transmission] 6) When the printer status changes from online to offline. ----
1) When the printer first goes online after power on or after
resetting through the interface.
DIP Switch 1-8 Status
TransmissionTransmission
TransmissionTransmission
TransmissionTransmission
ON OFF
Transmission
Transmission
Transmission
NOTES: • The XON code is <11>H and the XOFF code is <13>H.
• In case 3), XON is not transmitted when the receive buffer is full.
• In case 6), XOFF is not transmitted when the receive buffer is full.
• When connecting the printer to a DCE (DCE: Data Circuit Terminating Equipment), set the
handshaking so that the transmitted data can be received.
• Transmit data to the printer after turning on the power and initializing the printer.
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
1314
Confidential
2.1.1.6 Notes on setting DIP switch 1-8 to on
(1) The printer mechanism stops but does not become BUSY in the following cases:
• When an error occurs.
• When the printer stops printing due to a paper-end.
• When paper is fed using the feed button.
(2) When handshaking with the printer while using this switch setting, make sure to monitor the
printer with the GS a command and the ASB function.
With this switch setting, the default value of the GS a command n is 2. This automatically
transmits the printer status, depending on online/offline changes.
(3) When using the DLE EOT or DLE ENQ command, make sure that the receive buffer does not
become full.
• Notes on using a host that cannot transmit data when the printer is BUSY:
If an error occurs when the receive buffer is full and the printer is BUSY, the DLE EOT
and DLE ENQ commands cannot be used.
• Notes on using a host that can transmit data when the printer is BUSY:
If a DLE EOT or DLE ENQ command is used while sending bit-image data, and the
receive buffer-full state is encountered during transmission of the data, the DLE EOT or
DLE ENQ is processed as bit-image data.
In addition, the data transmitted during the receive buffer-full state may be lost.
Example:
Set the receive buffer to 1KB, and check the status with GS r for each line of printing
transmitted. Make sure the data for printing each line does not cause the printer to enter the
receive buffer-full state.
2.1.1.7 Notes on resetting the printer using the interface
The printer can be reset through the interface (pins 6 or 25) by changing the DIP switch settings
accordingly (Refer to Table 2.1.3).
Table 2.1.3 Switching of the Reset Condition
Pin No. DIP Switch Reset Condition
Pin 6 (DSR) DSW 2-7: ONMARK input
Pin 25 (INIT) DSW 2-8: ONSPACE or TTL-HIGH level voltage signal input
To reset the printer, the conditions given below must be satisfied:
<DC characteristics>
Table 2.1.4 DC Characteristics of the Reset Condition
Item SymbolPin 6 (DSR) Pin 25 (INIT)
Input HIGH level voltage VIH+3 to +15 V +2 to + 15 V
Input LOW level voltage VIL-15 to -3 V -15 to + 0.8 V
Input HIGH level current IIH5 mA (maximum) 1 mA (maximum)
Input LOW level current IIL-5.3 mA (maximum) -2 mA (maximum)
Input impedance RIN
3 kΩ (minimum)
EPSON
TITLE
TM-U210 series
Specification
(STANDARD)
SHEET
REVISION
L
NO.
SHEETNEXT
1415
Confidential
<AC characteristics>
Reset minimum pulse width: TRS 1 ms (minimum)
• When pin 6 (DSR) is used:
• When pin 25 (INIT) is used:
Figure 2.1.1 Interface Reset Signal (Pin 6)
Figure 2.1.2 Interface Reset Signal (Pin 25)
NOTES: 1. Correct printer operation is not guaranteed unless the signals meet the above
stated conditions. The above conditions must also be met when TTL signals
are used to drive the DSR and INIT reset pins. Although a signal is input to pin
6 (DSR) at the TTL level, according to the DC characteristics described above,
the operation is not guaranteed and pin 6 cannot be controlled.
2. When pin 6 (DSR) and Pin 25 (INIT) are open, the printer is operating.
Copyright (C) 1993 by the Institute of Electrical and Electronic Engineers, Inc.
2.1.2.1 Specifications
Data transmission: 8-bit Parallel
Synchronization: Externally supplied nStrobe signals
Handshaking: nAck and Busy signals
Signal levels: TTL compatible
Connector: 57RE-40360-830B (DDK) or equivalent (IEEE 1284
Type B)
Reverse communication (Printer Host): Nibble or Byte Mode
Note: The letter “n” in front of a signal name indicates active LOW.
2.1.2.2 Switching between online and offline
The printer is not equipped with any online/offline switch. The printer is placed in offline
status in any of the following:
• When the power is turned on or until the printer becomes ready for data transmission after it
is initialized by the reset signal (nInit) from the interface.
• In the process of self-test.
• In the process of paper feeding using the paper feed switch
• Between the time when the printer stops printing due to a paper-end and when the online
recovery wait time finishes after loading paper (in cases when an empty paper supply is
detected by either the paper roll end detector or the paper roll near-end detector with a
printing halt feature set enabled due for low paper by ESC c 4).
• When an error has occurred.
2.1.2.3 Reverse Mode (Data Transmission from Printer to Host)
The STATUS data transmission from the printer to the host proceeds in the Nibble or Byte
mode.
• Description
This mode allows data transmission from the asynchronous printer under the control of the
host.
Data transmissions in the Nibble Mode are made via the existing control lines in units of four
bits (a Nibble). In the Byte Mode, data transmissions proceed by making the eight-bits data
lines bidirectional.
Both modes fail to proceed concurrently in the Compatibility Mode, thereby causing half
duplex transmission.