Epson U925 - TM B/W Dot-matrix Printer User manual

EPSON
1.5 station printer
TM-U925
Specification
STANDARD
REV. NO. A
Notes
SEIKO EPSON CORPORATION
MATSUMOTO MINAMI PLANT
2070 KOTOBUKI KOAKA, MATSUMOTO-SHI, NAGANO, 399-8702 JAPAN
PHONE[phone] FAX[phone]

REVISION SHEET Sheet 1 of 2
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Revisions Design Section Sheet Rev. No.
Rev. Document Date WRT CHK APL Sheet Rev. Sheet Rev. Sheet Rev.
A ENACTMENT IA18A42A
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TITLE Front Part
TM-U925
Specification Cover Rev.
Sheet Scope General Features Table of Contents Contents Appendix Total
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REVISION SHEET Sheet 2 of 2
Be sure to check the contents before utilizing the specification. This specification has the history shown below.
Revisions Design Section Sheet Rev. No.
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A ENACTMENT 66 A 90 A 114 A
67 A 91 A 115 A
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TITLE Front Part
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Specification Cover Rev.
Sheet Scope General Features Table of Contents Contents Appendix Total
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TM-U925
Specification
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CAUTION
1) This specification shall apply only to the product(s) identified herein.
2) This specification may be modified by SEIKO EPSON CORPORATION without any notice.
It is necessary for "the customer" to inquire from SEIKO EPSON CORPORATION for the
latest specification.
3) No part of this specification shall be reproduced or transmitted in any form or by any means,
electronic or mechanical, including photocopying and recording, for any purpose without the
express written permission of SEIKO EPSON CORPORATION.
GENERAL FEATURES
The TM-U925 is a high-quality POS printer that can print on slip paper and a paper roll.
The printer has the following features:
·Wide slip paper capability (maximum characters per line: 88 with 7 ´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 sensor.
·Command protocol based on the ESC/POSTM standard.
·Automatic Status Back (ASB) function that automatically transmits changes in the printer status.
·EPSON intelligent module connection (An intelligent module for connection to the printer is under
development).
·EPSON customer display series connection.
·Optional Magnetic Ink Character Recognition (MICR) reader that enables the printer to perform
consecutive reading and processing of MICR characters and printing endorsements.

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TABLE OF CONTENTS
1. GENERAL SPECIFICATIONS..................................................................................................1
1.1 Printing Specifications........................................................................................................1
1.2 Character Specifications....................................................................................................1
1.3 Ribbon................................................................................................................................2
1.4 Stamp.................................................................................................................................3
1.5 Auto-cutter .........................................................................................................................4
1.6 Paper Roll Supply Device ..................................................................................................4
1.7 Paper .................................................................................................................................5
1.8 Printable Area ....................................................................................................................9
1.9 Printing, Stamp, and Auto-cutter Positions ......................................................................11
1.10 Receive Buffer ...............................................................................................................12
1.11 Electrical Characteristics................................................................................................12
1.12 EMI and Safety Standards Applied................................................................................12
1.13 Reliability (Refer to Appendix G)....................................................................................13
1.14 Environmental Conditions..............................................................................................13
1.15 MICR Reader (only when the printer is used with the MICR reader).............................14
2. CONFIGURATION..................................................................................................................15
2.1 Interface...........................................................................................................................15
2.1.1 RS-232C serial interface..........................................................................................15
2.1.2 Notes on setting DIP switch 2-5 to ON ....................................................................18
2.1.3 Notes on resetting the printer using the interface....................................................18
2.2 Connectors.......................................................................................................................20
2.2.1 Interface connectors ................................................................................................20
2.2.2 Power supply connector...........................................................................................20
2.2.3 Drawer kick-out connector (modular connector)......................................................20
2.2.4 Customer display connector (For RS-232 serial interface)......................................23
3. FUNCTION..............................................................................................................................24
3.1 Command List..................................................................................................................24
3.2 Character Code Tables....................................................................................................27
3.2.1 Page 0 (PC437: U.S.A., Standard Europe) ........................................................27
3.2.2 Page 1 (Katakana)...................................................................................................28
3.2.3 Page 2 (PC850: Multilingual).................................................................................29
3.2.4 Page 3 (PC860: Portuguese) .............................................................................30
3.2.5 Page 4 (PC863: Canadian-French).......................................................................31
3.2.6 Page 5 (PC865: Nordic)........................................................................................32
3.2.7 Page 254 (Space Page)...........................................................................................33
3.2.8 Page 255 (Space Page)...........................................................................................34
3.2.9 International character set .......................................................................................35
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3.3 Switches and Buttons ......................................................................................................36
3.3.1 Power button............................................................................................................36
3.3.2 Panel buttons...........................................................................................................36
3.3.3 DIP switches............................................................................................................37
3.4 Panel LED Indicators .......................................................................................................39
3.4.1 Panel LED................................................................................................................39
3.5 Self-test............................................................................................................................41
3.6 Hexadecimal Dumping.....................................................................................................42
3.7 Printing on Slip Paper ......................................................................................................43
3.8 Error Processing..............................................................................................................44
3.8.1 Error types ...............................................................................................................44
3.8.2 Printer operation when an error occurs ...................................................................45
3.8.3 Data receive error .................................................................................................45
3.9 Paper Sensors .................................................................................................................46
3.9.1 Sensors and LED indicators ....................................................................................46
3.9.2 Sensors and printing................................................................................................47
3.10 Printer Cover..................................................................................................................48
3.10.1 Cover open button .................................................................................................48
3.10.2 Cover open sensor.................................................................................................48
3.11 Print Buffer-full Printing..................................................................................................48
3.12 Loading the Paper Roll...................................................................................................48
3.13 Paper Jam Removal ......................................................................................................49
3.14 Reading MICR Characters and Printing Endorsements ................................................50
3.15 Cleaning the MICR Mechanism .....................................................................................51
4. CASE SPECIFICATIONS .......................................................................................................52
4.1 External Dimensions and Weight.....................................................................................52
4.2 Color ................................................................................................................................52
4.3 External Appearance .......................................................................................................52
4.4 Note .................................................................................................................................52
5. OPTIONS................................................................................................................................53
5.1 Standard Accessories......................................................................................................53
5.2 Options.............................................................................................................................53
5.3 Customer Display.............................................................................................................53
6. COMMANDS...........................................................................................................................54
6.1 Command Notation..........................................................................................................54
6.2 Control Commands..........................................................................................................55
LF........................................................................................................................................55
FF........................................................................................................................................55
CR.......................................................................................................................................56
DLE EOT
n ..........................................................................................................................57
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DLE ENQ n .........................................................................................................................61
ESC SP
n ............................................................................................................................63
ESC !
n ................................................................................................................................64
ESC $
nL nH .......................................................................................................................65
ESC %
n .............................................................................................................................66
ESC &
y c1 c2 [X [d] y ´x] c2 - c1 + 1 ................................................................................67
ESC *
m nL nH [d] nL + 256 ´ nH .......................................................................................69
ESC -
n ...............................................................................................................................70
ESC 2..................................................................................................................................71
ESC 3
n ...............................................................................................................................71
ESC <..................................................................................................................................71
ESC =
n ...............................................................................................................................72
ESC ?
n ...............................................................................................................................74
ESC @................................................................................................................................74
ESC C
n ..............................................................................................................................75
ESC E
n ..............................................................................................................................76
ESC G
n ..............................................................................................................................77
ESC J
n ...............................................................................................................................78
ESC K
n ..............................................................................................................................79
ESC R
n ..............................................................................................................................80
ESC U
n ..............................................................................................................................81
ESC ¥
nL nH .......................................................................................................................82
ESC a
n ...............................................................................................................................83
ESC c 0
n ............................................................................................................................84
ESC c 1
n ............................................................................................................................85
ESC c 4
n ............................................................................................................................86
ESC c 5
n ............................................................................................................................87
ESC d
n ...............................................................................................................................88
ESC e
n ...............................................................................................................................89
ESC f
t1 t2 ...........................................................................................................................90
ESC i...................................................................................................................................91
ESC m.................................................................................................................................91
ESC o..................................................................................................................................91
ESC p m
t1 t2 ......................................................................................................................92
ESC t
n ................................................................................................................................93
ESC u
n ...............................................................................................................................94
ESC v..................................................................................................................................95
ESC {
n ...............................................................................................................................96
GS ENQ..............................................................................................................................97
GS *
x y [d] x ´y ´ 8...........................................................................................................99
GS /
m ...............................................................................................................................100
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GS E n ..............................................................................................................................101
GS I
n ................................................................................................................................102
GS P
x y ............................................................................................................................103
GS a
n ...............................................................................................................................104
GS r
n ................................................................................................................................107
6.3 Ignored Commands.....................................................................................................109
6.4 MICR Control Commands (when the printer is used with the MICR reader) ..............110
DLE EOT BS
n ..................................................................................................................110
FS a 0
n ............................................................................................................................112
FS a 1
n ............................................................................................................................117
FS a 2 ...............................................................................................................................118
FS b ..................................................................................................................................119
FS c...................................................................................................................................120
APPENDIX A: MISCELLANEOUS NOTES...................................................................................1
APPENDIX B: TRANSMIT STATUS IDENTIFICATION ...............................................................2
APPENDIX C: CONFIGURING THE SPACE PAGE..................................................................3
APPENDIX D: ADJUSTING THE PAPER ROLL NEAR-END SENSOR LOCATION...................5
APPENDIX E: NOTES ON USING THE DRAWER KICK-OUT CONNECTOR............................6
APPENDIX F: EXAMPLE PRINT CONTROL FOR SLIP PAPER.................................................7
APPENDIX G: DEFINITION OF RELIABILITY AS USED IN THIS SPECIFICATION..................8
APPENDIX H: EXAMPLE READ CONTROL FOR MICR CHARACTERS...................................9
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1. GENERAL SPECIFICATIONS
1.1 Printing Specifications
1) Printing method: Impact dot matrix
2) Head wire configuration: 9-pin vertical line, wire pitch 1/72 inch
3) Head wire diameter: 0.29 mm (.01")
4) Printing directions: Bidirectional, minimum distance printing
5) Printing speed: Refer to Table 1.2.1
6) Characters per line: Refer to Table 1.2.1
7) Characters per inch: Refer to Table 1.2.1
8) Print mode: Refer to Table 1.1.1
Table 1.1.1 Print Mode
Paper Roll Slip Paper
Print mode Printing
speed *1 Print head
Energizing time Default status Switching *2 Default status Switching *2
Normal High Normal Possible -- Possible
Low speed Low Normal Depends on
DIP SW 2-4 Possible -- Possible
Copy mode Low Copy (long) -- Possible Selected Possible
NOTES: *1. The printer automatically goes to low-speed mode during bit image printing, regardless of
the type.
*2. The print mode can be changed using the GS E command.
1.2 Character Specifications
1) Number of characters: Alphanumeric characters: 95
International characters: 32
Extended graphics: 128 ´8 pages
(including space pages)
2) Character structure: 9 ´9 3-dot spacing (in half-dot units)
7 ´9 2-dot spacing (in half-dot units)
Larger spacing can be set by using the ESC SP command.
3) Character size: Refer to Table 1.2.1
Table 1.2.1 Characters Data and Size
Characters Per Second
(CPS)
(Carriage speed)
Characters Per Line
(CPL)
Character
Structure
(Horizontal ´
vertical)
Character
Spacing
(half dots)
Characters
Per Inch
(CPI) High speed Low speed Roll Paper Slip Paper
Character Size
(units: mm)
Width ´Height
9 ´9 3 dots 12.5 233 200 30 66 1.6´3.1 (.06”´.12”)
7 ´9 2 dots 16.7 311 267 40 88 1.3´3.1 (.05”´.12”)

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1.3 Ribbon
1) Type: Exclusive ribbon cassette
2) Ribbon cassette specifications:
Part number: ERC-31
Color: Purple
Ribbon life (*): 7,000,000 characters
(*): when one character consists of 18 dots.
3) Ribbon cassette overall dimensions: (refer to Figure 1.3.1)(All the numeric values are typical.)
Figure 1.3.1 Ribbon Cassette Overall Dimensions

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1.4 Stamp
Paper roll side only (controlled by the ESC o command)
1) Recommended stamp: Fuji Copian CSP-2042C
2) Recommended ink: Fuji Copian Super Ink (purple)
3) Printable area dimensions (W ´H):
42 mm ´20 mm (1.65" ´0.79")
4) Stamp overall dimensions: Refer to Figure 1.4.1.
NOTE: The stamp mechanism is a factory option. The stamp set should be supplied by the user.
Figure 1.4.1 Stamp Overall Dimensions
Figure 1.4.2 Stamp Set Overall Dimensions

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1.5 Auto-cutter
Full cut/partial cut: Controlled by the ESC i and ESC m commands.
1.6 Paper Roll Supply Device
1) Supply method: Paper roll drop-in loading
2) Near-end sensor
a) Detection method: Microswitch
b) Paper roll spool: Inside diameter of 10 mm (0.39") or more
c) Near-end adjustment: Adjusting screw (refer to Appendix D,
Adjusting the Paper Roll Near-
End Sensor Location
)

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1.7 Paper
1) Paper feed method: Friction feed
2) Paper feed pitch: Default 1/6 inch
Can be set in units of 1/144 inch by the ESC 3 and ESC J commands.
3) Paper feed speed: Approximately 60.3 ms/line (1/6 inch feeding)
Approximately 3.4 inches/second (continuous feeding)
4) Paper size:
a)Paper roll (single-ply)
ÀQuality: High
ÁSize: Width: 69.5 mm ±0.5 mm (2.74" ±.02")
Maximum outside diameter: 83 mm (3.27")
ÂThickness: 0.06 to 0.09 mm (.0024 to .0035")
ÃWeight: 52.3 to 64.0 g/m2(13.9 to 17 lbs) (JIS P8124)
(45 to 55 Kg (20.41 to 24.94 lbs)/1000 sheets/788 mm ´1091 mm
(31.02" ´42.95"))
ÄPaper roll spool inside diameter:
10 mm (0.39") or more
b) Slip paper
ÀPaper type: ùNormal paper
ùCarbon copy paper
ùPressure sensitive paper
ÁTotal thickness: 0.09 to 0.36 mm (.0035 to .0141") (Refer to b)-Äbelow)
ÂSize (W ´L): 70 mm ´70 mm to 210 mm ´297 mm (A4 size)
(2.76" ´2.76" to 8.27" ´11.69")
ÃAmbient temperature and copy capability
Copy capability is greatly influenced by the ambient temperature, so printing must be
performed under the conditions described in Table 2.6.1.
Table 2.6.1 Number of Copies and Ambient Temperature
Number of copies Ambient temperature (print mode)
Original + 4 copies Approximately 20°to 40°C (68°to 104°F) (copy mode)
Original + 1 to 3 copies 5°to 40°C (41°to 104°F) (copy mode)

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ÄCopy capability and paper thickness:
·Normal paper (single-ply): 0.09 to 0.2 mm (.0035 to .0079")
·Carbon copy paper combination:
5 sheets maximum
(original + 4 copies, at 20°to 40°C (68°to 104°F))
Backing paper: 0.06 to 0.15 mm (.0023 to .0059")
Copy and original: 0.04 to 0.07 mm (.0015 to 0028")
Carbon paper: Approximately 0.035 mm (.0014")
Total thickness: 0.30 mm (.0118") or less (for any combination from a single
original to an original + 3 copies)
0.36 mm (.0141") or less (for any combination from a single
original to an original + 4 copies)
·Pressure sensitive paper: 5 sheets maximum (original + 4 copies, at 20°to 40°C (68°to
104°F))
Backing paper: 0.06 to 0.15 mm (.0023 to .0059")
Copy and original: 0.06 to 0.075 mm (.0023 to .003")
Total thickness: 0.24 mm (.0094") or less (original to original + 3 copies)
0.30 mm (.0118") or less (original + 4 copies)
NOTE: When using multi-ply paper that consists of an original and three copies, be sure to print with a
9 ´9 font. If a 7 ´9 font is used, some characters on some of the copies may not be
readable.
c)Check paper (only when the printer is used with the MICR reader)
ÀPaper type: Normal paper
ÁTotal thickness: 0.09 to 0.2 mm (.0035 to .0079")
ÂSize: 68 to 102 mm x 152 to 210 mm (2.68 to 4.02" ´2.98 to 8.27")
ÃWeight: 70 to 90 kg paper
5) Notes on setting the print operation mode
·The GS E command sets print mode (printing speed and print head energizing time).
·When the power is turned on, normal mode is selected as the default. The printer automatically
switches from normal mode to copy mode when slip paper is selected by ESC c 0.
·Refer to ESC c 0 and GS E.
6) Notes on slip paper
·The slip paper must be flat, without curls or wrinkles, especially at the top edges. Otherwise, the
paper may rub against the ribbon and become stained.
·There must be no glue on the bottom edge of the slip paper. The glue should preferably to be on
the top edge. Choose slip paper carefully when the glue is on the right or left edge, since paper
feeding and insertion are affected by gluing conditions (e.g., glue quality, method, and length) and
glue location (refer to Figure 1.7.1). Be especially careful when the slip paper is wide and has
the glue on the right or left edge, since skewing may occur.
·Since the slip insertion sensor uses a photosensor, do not use paper that has holes at the sensor
position or is translucent (refer to Figure 1.7.2).

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·Since the slip ejection sensor uses a reflective photosensor, do not use paper that has holes or
dark portions with low reflection (less than 40%) at the sensor position (refer to Figure 1.7.3).
·Be sure to perform slip printing with a paper roll loaded to avoid incorrect paper feeding due to
paper jams.
·Use thinner paper (N30 or equivalent) between the top and bottom sheets of multi-ply paper. If
thick paper is used, copy capability is lowered.
7) Notes on using the MICR reader (only when the printer is used with MICR)
·Be sure to perform personal check printing with a paper roll loaded. If MICR reading and/or
printing is performed without a paper roll, the check cannot be fed correctly or may be damaged
due to paper jams.
·The personal checks must be flat, without curls, folds, or wrinkles (especially at the edges).
Otherwise, the check may rub against the ribbon and become stained.
·Do not insert checks with staples. This may cause paper jams, MICR reading errors, and damage
to the MICR head.
·Let go of the check as soon as the printer starts feeding it. Otherwise, the paper is not fed
straight, causing paper jams and MICR reading errors.
Figure 1.7.1 Slip Paper Glued Area
(All the numeric values are typical.)
Figure 1.7.2 Slip Insertion Sensor Position

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Figure 1.7.3 Paper Holes and Low Reflection Prohibited Area

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1.8 Printable Area
1) Paper roll
Figure 1.8.1 Paper Roll Printable Area
2) Slip paper (All the numeric values are typical.)
Figure 1.8.2 Slip Paper Printable Area

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Printing U.S.A. personal checks (lengthwise printing)
1) Width: 68 to 77 mm (2.68 to 3.03")
2) Thickness: 0.09 to 0.2 mm (.0035 to .0079")
3) Lengthwise printing (on the back)
Printing within the printable area shown in Figure 1.9.4 is possible, but pay attention to the
following points:
ÀSince only one roller is used, paper fed per step is calculated as 0.1771 mm (.0007").
Distance from the top of the slip to the printing position is 8.7 mm (0.34" = A) (calculated value).
ÁThe printable area is 180 dots (360 positions) from the right-side print starting position.
ÂTo print endorsements on the back in the specified area (within 1.5 inches from the top), set the
print position for the last line so that it is printed 3 mm (.12") above the bottom of the printable
area.
(All numeric values are typical.)
Figure 1.8.3 U.S.A. Personal Check Printable Area

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1.9 Printing, Stamp, and Auto-cutter Positions
Figure 1.9.1 Printing, Stamp, and Auto-cutter Positions
1) Distance from the auto-cutting position to the center of the printing position:
Approximately 38.5 mm (1.52")
2) Distance from the center of the stamp to the center of the printing position:
Approximately 40.5 mm (1.59")
3) Distance from the auto-cutting position to the emergency cutter position:
Approximately 11.0 mm (0.43")
NOTE: The dimensions in Figure 1.9.1 do not allow for paper slack. Therefore, take this into
account when using the stamp or auto-cutter.
(All the numeric values are typical.)

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1.10 Receive Buffer
Selectable as 32 or 2K bytes using a DIP switch
1.11 Electrical Characteristics
1) Supply voltage: +24 VDC ±10%
Ripple voltage: 300 mVpp or less
(only when the printer is used with the MICR reader)
2) Current consumption: Operating:
a) When feeding slip paper to the print starting position:
Mean - approximately 2.3 A, approximately 1.4 seconds
b) Printing:
Mean - approximately 1.8 A
(when printing alphanumeric characters for muximum
number of printing on paper roll)
Peak - approximately 8.0 A
Standby: Mean - approximately 0.3 A
Operating MICR reader (when the printer is used with the MICR
reader): Mean - approximately 2.3 A
(Approximately 1.4 seconds)
1.12 EMI and Safety Standards Applied
1) Europe CE marking (printer with MICR reader: under application)
EN55022
EN50082-1
EN45501 (except for when connected to IM)
Safety standard: TÜV
2) North America EMI: FCC Class A
Safety standards: UL1950-2TH-D3
C-UL
3) Japan: EMI: VCCI Class 1