Epson T88III User Manual

0 (0)

Confidential

EPSON

Receipt Printer

TM-T88III series

Specification

STANDARD

Rev. No.

Notes

Copied Date	,	,
Copied by

SEIKO EPSON CORPORATION

MATSUMOTO MINAMI PLANT

2070 KOTOBUKI KOAKA, MATSUMOTO-SHI, NAGANO, 399-8702 JAPAN PHONE(0263)86-5353 FAX(0263)86-9923

Confidential

REVISION SHEET

Sheet 1 of 4

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.

Revisions

Design Section

Sheet Rev. No.

Rev.

Document

WRT

CHK

APL

Sheet

Rev.

Sheet

Rev.

Sheet

Rev.

Enactment

Nakayama

Omura

Change

III

TITLE

TM-T88III series

Front Part

Rev.

Confidentiality

General

Table of

Specification

Cover

Sheet

Agreement

Features

Contents

Appendix

Total

(STANDARD)

152

183

Confidential

REVISION SHEET

Sheet 2 of 4

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.

	Revisions	Design Section							Sheet Rev. No.

Rev.	Document	WRT	CHK	APL		Sheet		Rev.	Sheet		Rev.	Sheet	Rev.

A	Enactment					67		B	92		B	117	B

B	Change					68		B	93		B	118	B

						69		B	94		B	119	B

						70		B	95		B	120	B

						71		B	96		B	121	B

						72		B	97		B	122	B

						73		B	98		B	123	B

						74		B	99		B	124	B

						75		B	100		B	125	B

						76		B	101		B	126	B

						77		B	102		B	127	B

						78		B	103		B	128	B

						79		B	104		B	129	B

						80		B	105		B	130	B

						81		B	106		B	131	B

						82		B	107		B	132	B

						83		B	108		B	133	B

						84		B	109		B	134	B

						85		B	110		B	135	B

						86		B	111		B	136	B

						87		B	112		B	137	B

						88		B	113		B	138	B

						89		B	114		B	139	B

						90		B	115		B	140	B

						91		B	116		B	141	B

TITLE	TM-T88III series				Front Part
	TM-T88III series			Rev.	Confidentiality		General		Table of
	Specification		Cover	Sheet	Agreement		Features		Contents	Contents		Appendix	Total
	(STANDARD)
	(STANDARD)		1	4	1		1		4	152		20	183

Confidential

REVISION SHEET

The table below indicates which pages in this specification have been revised.

Sheet 3 of 4

Before reading this specification, be sure you have the correct version of each page.

Revisions

Design Section

Sheet Rev. No.

Rev.

Document

WRT

CHK

APL

Sheet

Rev.

Sheet

Rev.

Sheet

Rev.

Enactment

142

App.1

Change

143

App.2

144

App.3

145

App.4

146

App.5

147

App.6

148

App.7

149

App.8

150

App.9

151

App.10

152

App.11

App.12

App.13

App.14

App.15

App.16

App.17

App.18

App.19

App.20

TITLE			Front Part
TM-T88III series		Rev.	Confidentiality	General	Table of
Specification	Cover	Sheet	Agreement	Features	Contents	Contents	Appendix	Total
	Cover	Sheet	Agreement	Features	Contents	Contents	Appendix	Total
(STANDARD)
(STANDARD)	1	4	1	1	4	152	20	183

Confidential

REVISION SHEET

Sheet 4 of 4

REV.	SHEET			CHANGED CONTENTS

B	All	All pages are revised, due to addition of the multilingual support.
	II	GENERAL FEATURES
		The following models are available …			(added)
	III - VI	Table of Contents		(changed)
	1 – 3	1.1 Printing Specifications
		1.2 Character Specifications
		Description for Kanji and Thai characters support (added)
	25	2.1.4 Other interfaces (added)
	31	Kanji command list		(added)
	42 - 50	3.2.11 Page 20 through 3.2.17 Page 26			(added)
		3.2.11 → 3.2.18, 3.2.12 → 3.2.19
	66	5.1 Standard Accessories
		User’s manual (Languages: .. Simplified Chinese, Traditional Chinese) (added)
	77	ESC !
		[Details] •	Emphasized mode is … (added)
	86	ESC -
		[Details] •	This command does not … (added)
	106	ESC t
		[Range] [Description] [Default] Thai model (added)
	123	GS I
		[Range] [Description] n=69 (added)
	145 -	6.4 Kanji Control Commands (added)
	152
	App.1	Table A.1 Kanji font (added)
	App.20	APPENDIX K, Multilingual support (changed)

TITLE

TM-T88III series

Specification

(STANDARD)

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 those of 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 the negotiation.

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 on the information in 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-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	II	I
	II	I

Confidential

GENERAL FEATURES

This specification applies the following models of the TM-T88III series printer:

TM-T88III (with serial interface (*1))

TM-T88IIIP (with parallel interface)

The following models are available for each product above.

1)Alphanumeric (ANK) model

2)Multilingual model (*)

3)Japanese model

(*): The multilingual character model supports printing with one of the following characters:Simplified Chinese

Traditional ChineseThai

Korean

The printer has the following features:

1)Printing

•High speed printing: approximately 35.5 lps (4.23 mm {1/6"} feed) maximum. [lps: lines per second]

•Low-noise thermal printing.

•High reliability due to a stable mechanism.

2)Application Software

•Command protocol is based on the ESC/POS£ standard.

•Various Layouts are possible by using page mode.

•Characters can be scaled up to 64 times as large as the standard size. Smoothing is also possible.

•Bar code printing is possible by using a bar code command. Bar codes can be printed both in the vertical direction (fence bar code) and in the horizontal direction (ladder bar code) (*2).

•Repeated operation and copy printing are possible by using macro definitions.

•Character font size (12 × 24 font or 9 × 17 font) can be selected using a command.

3)Printer Handling

•Easy paper roll setting.

•Equipped with an autocutter.

•The printer allows easy maintenance for tasks such as head cleaning.

•Three different print densities can be selected by DIP switches.

•The built-in interface provides control capability for two drawers.

NOTES) *1: An RS-485 serial interface is a factory option.

*2: The ladder bar code is effective only in the page mode.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	III	II
	III	II

Confidential
		Table of Contents
1. GENERAL SPECIFICATIONS
1.1	Printing Specifications ..................................................................................................................		1
1.2	Character Specifications ..............................................................................................................		2
1.3	Autocutter .....................................................................................................................................		3
1.4	Paper Roll Supply Device.............................................................................................................		4
1.5	Paper Specification ......................................................................................................................		4
1.6	Printable Area...............................................................................................................................		5
1.7	Printing and Cutting Positions ......................................................................................................		6
1.8	Internal Buffer...............................................................................................................................		6
1.9	Electrical Characteristics..............................................................................................................		7
1.10 EMI and Safety Standards Applied.............................................................................................			7
1.11 Reliability ....................................................................................................................................			8
1.12 Environmental Conditions ..........................................................................................................			8
1.13 Installation ..................................................................................................................................			9
2. CONFIGURATION
2.1	Interface .....................................................................................................................................		10
2.1.1 RS-232 serial interface .......................................................................................................			10
2.1.2 IEEE 1284 Bidirectional Parallel Interface ..........................................................................			15
2.1.3 RS-485 Serial Interface.......................................................................................................			21
2.1.4 Other Interfaces ..................................................................................................................			25
2.2	Connectors .................................................................................................................................		26
2.2.1 Interface Connectors...........................................................................................................			26
2.2.2 Power Supply Connector ....................................................................................................			26
2.2.3 Drawer Kick-out Connector (Modular Connector)...............................................................			27
3. FUNCTIONS
3.1	List of commands .......................................................................................................................		29
3.2	Character Code Tables ..............................................................................................................		32
3.2.1 Page 0 (PC437: USA, Standard Europe) (International Character Set: U.S.A.).................			32
3.2.2 Page 1 (Katakana) ..............................................................................................................			33
3.2.3 Page 2 (PC850: Multilingual) ..............................................................................................			34
3.2.4 Page 3 (PC860: Portuguese)..............................................................................................			35
3.2.5 Page 4 (PC863: Canadian-French) ....................................................................................			36
3.2.6 Page 5 (PC865: Nordic)......................................................................................................			37
3.2.7 Page 16 (WPC1252)...........................................................................................................			38
3.2.8 Page 17 (PC866: Cyrillic#2)................................................................................................			39
3.2.9 Page 18 (PC852: Latin2) ....................................................................................................			40
3.2.10 Page 19		(PC858) ..............................................................................................................	41
3.2.11 Page 20		(Thai character code 42) ....................................................................................	42
3.2.12 Page 21		(Thai character code 11) ....................................................................................	43
3.2.13 Page 22		(Thai character code 13) ....................................................................................	44
3.2.14 Page 23		(Thai character code 14) ....................................................................................	45
3.2.15 Page 24		(Thai character code 16) ....................................................................................	46
3.2.16 Page 25		(Thai character code 17) ....................................................................................	47
3.2.17 Page 26		(Thai character code 18) ....................................................................................	48
3.2.18 Page 255 (Space Page)....................................................................................................			49
3.2.19 International Character Set ...............................................................................................			50
3.3	Switches and Buttons.................................................................................................................		51
3.3.1 Power Button.......................................................................................................................			51
3.3.2 Panel Buttons......................................................................................................................			51
3.3.3 DIP Switches.......................................................................................................................			52

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	IV	III
	IV	III

Confidential
3.4	Panel LED Indicators..................................................................................................................	55
3.5	Self-test ......................................................................................................................................	56
3.6	Hexadecimal Dumping ...............................................................................................................	57
3.7	Error Processing.........................................................................................................................	58
3.7.1 Error Types .........................................................................................................................		58
3.7.2 Printer Operation When an Error Occurs ...........................................................................		59
3.7.3 Data Receive Error (only in the serial interface specification) ............................................		59
3.8	Paper Sensors............................................................................................................................	59
3.9	Cover Open Button.....................................................................................................................	60
3.10 Cover Open Sensor..................................................................................................................		60
3.11 Print Buffer-full Printing ............................................................................................................		60
3.12 Page Mode ...............................................................................................................................		61
3.12.1 General Description ..........................................................................................................		61
3.12.2 Setting Values in Standard and Page Modes ...................................................................		61
3.12.3 Formatting of Print Data in the Printable Area ..................................................................		62
4. CASE SPECIFICATIONS
4.1	External Dimensions and Mass..................................................................................................	65
4.2	Color...........................................................................................................................................	65
4.3	External Appearance..................................................................................................................	65
5. OPTIONS AND CONSUMABLES
5.1	Standard Accessories ................................................................................................................	66
5.2	Options .......................................................................................................................................	66
5.3	Consumables .............................................................................................................................	66
6. COMMANDS
6.1	Command Notation ....................................................................................................................	67
6.2	Explanation of Terms .................................................................................................................	67
6.3	Control Commands ....................................................................................................................	69
HT ................................................................................................................................................		69
LF.................................................................................................................................................		69
FF.................................................................................................................................................		70
CR................................................................................................................................................		70
CAN .............................................................................................................................................		70
DLE EOT n...................................................................................................................................		71
DLE ENQ n ..................................................................................................................................		74
DLE DC4 n m t.............................................................................................................................		75
ESC FF ........................................................................................................................................		76
ESC SP n.....................................................................................................................................		76
ESC ! n.........................................................................................................................................		77
ESC $ nL nH ................................................................................................................................		78
ESC % n ......................................................................................................................................		79
ESC & y c1 c2 [x1 d1...d(y × x1)]...[xk d1...d(y × xk)] ..................................................................		80
ESC m nL nH d1...dk ................................................................................................................		83
ESC - n ........................................................................................................................................		86
ESC 2...........................................................................................................................................		86
ESC 3 n........................................................................................................................................		87
ESC = n........................................................................................................................................		88
ESC ? n........................................................................................................................................		88
ESC @ .........................................................................................................................................		89
ESC D n1...nk NUL ......................................................................................................................		90
ESC E n .......................................................................................................................................		91
ESC G n.......................................................................................................................................		91

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	V	IV
	V	IV

Confidential
ESC J n........................................................................................................................................		92
ESC L...........................................................................................................................................		93
ESC M n.......................................................................................................................................		94
ESC R n .......................................................................................................................................		94
ESC S ..........................................................................................................................................		95
ESC T n .......................................................................................................................................		96
ESC V n .......................................................................................................................................		97
ESC W xL xH yL yH dxL dxH dyL dyH ........................................................................................		98
ESC \ nL nH ...............................................................................................................................		100
ESC a n......................................................................................................................................		101
ESC c 3 n...................................................................................................................................		102
ESC c 4 n...................................................................................................................................		103
ESC c 5 n...................................................................................................................................		104
ESC d n......................................................................................................................................		104
ESC p m t1 t2.............................................................................................................................		105
ESC t n.......................................................................................................................................		106
ESC { n ......................................................................................................................................		107
FS g 1 m a1 a2 a3 a4 nL nH d1...dk ..........................................................................................		108
FS g 2 m a1 a2 a3 a4 nL nH......................................................................................................		109
FS p n m ....................................................................................................................................		111
FS q n [xL xH yL yH d1...	dk]1...[xL xH yL yH d1...dk]n..............................................................	112
GS ! n.........................................................................................................................................		115
GS $ nL nH ................................................................................................................................		117
GS x y d1...d(x × y × 8) ...........................................................................................................		118
GS ( A pL pH n m.......................................................................................................................		119
GS / m........................................................................................................................................		120
GS :............................................................................................................................................		121
GS B n .......................................................................................................................................		122
GS H n .......................................................................................................................................		122
GS I n.........................................................................................................................................		123
GS L nL nH ................................................................................................................................		125
GS P x y.....................................................................................................................................		126
GS V m GS V m n..............................................................................................................		127
GS W nL nH...............................................................................................................................		128
GS \ nL nH .................................................................................................................................		130
GS ^ r t m ...................................................................................................................................		131
GS a n........................................................................................................................................		132
GS b n........................................................................................................................................		135
GS f n.........................................................................................................................................		135
GS h n........................................................................................................................................		136
GS k m d1...dk NUL	GS k m n d1...dn..............................................................................	136
GS r n.........................................................................................................................................		141
GS v 0 m xL xH yL yH d1....dk...................................................................................................		143
GS w n .......................................................................................................................................		144
6.4 Kanji Control Commands .........................................................................................................		145
FS ! n .........................................................................................................................................		145
FS & ...........................................................................................................................................		146
FS - n .........................................................................................................................................		147
FS . ............................................................................................................................................		148
FS 2 c1 c2 d1...dk ......................................................................................................................		148
FS C n........................................................................................................................................		150
FS S n1 n2 .................................................................................................................................		151
FS W n.......................................................................................................................................		152

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	VI	V
	VI	V

Confidential

APPENDIX A: MISCELLANEOUS NOTES ................................................................................	App.1
APPENDIX B: PAPER ROLL SETUP.........................................................................................	App.4
APPENDIX C: ADJUSTING THE PAPER ROLL NEAR-END SENSOR LOCATION.................	App.5
APPENDIX D: RECOVERY FROM THE AUTO CUTTER ERROR............................................	App.7
APPENDIX E: PRINT HEAD CLEANING ...................................................................................	App.8
APPENDIX F: NOTES ON USING THE DRAWER KICK-OUT CONNECTOR .........................	App.9
APPENDIX G: TRANSMISSION STATUS IDENTIFICATION ..................................................	App.10
APPENDIX H: CONFIGURING THE SPACE PAGE ................................................................	App.11
APPENDIX I: EXAMPLE PRINTING IN PAGE MODE............................................................	App.13
APPENDIX J: CODE128 BAR CODE ......................................................................................	App.16
APPENDIX K: COMPARISON TABLE BETWEEN TM-T88III AND TM-T88II ........................	App.20

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	1	VI
	1	VI

Confidential

1. GENERAL SPECIFICATIONS

1.1 Printing Specifications

1)	Printing method:	Thermal line printing
2)	Dot density:	180 dpi ×	180 dpi
		[dpi: dots per 25.4 mm {1"}]
3)	Printing direction:	Unidirectional with friction feed
4)	Printing width:	72 mm {2.83"}, 512 dot positions
5)	Characters per line (default): Font A:		42
		Font B:	56
		Kanji:	21
6)	Character spacing (default):	Font A:	0.28 mm {0.01"} (2 dots)
		Font B:	0.28 mm {0.01"} (2 dots)
		Programmable by control command.
7)	Printing speed:	High speed mode:

Approximately 150 mm/s maximum {Approximately 5.9"/s maximum}

47.2 lps maximum (computed value for 3.18 mm {1/8"} feed) 35.5 lps maximum (4.23 mm {1/6"} feed)

(at 24V, 28° C {82.4° F}, Density level 1. Speeds are switched automatically depending on the voltage applied to the printer and head temperature conditions.)

Low power consumption mode:

Approximately 16.5 lps (4.23 mm {1/6"} feed) Approximately 70 mm/s {approximately 2.76"/s}

When a ladder bar code is printed: Approximately 42 mm/s {approximately 1.7"/s}

[lps: lines per second]

NOTES: • There may be variations in printing after switching the mode of the printing speed. To prevent this for logo printing with ESC command, using a downloaded bit image is recommended. Change in printing speed does not occur during down loaded bit image printing.

•Printing speed may be slower depending on the data transmission speed and the combination of control commands.

•Low transmission speed may cause intermittent printing. It is recommended to transmit data to the printer as quickly as possible.

•High speed mode or low power consumption mode is selected by a DIP switch. (Refer to Table 3.3.4 and 3.3.7).

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	2	1
	2	1

Confidential

8)	Paper feed speed:	Approximately 150 mm/s {approximately 5.9"/s}
		(continuous paper feeding)
9)	Line spacing (default):	4.23 mm {1/6"}
		Programmable by control command.

1.2 Character Specifications

1) Number of characters:	Alphanumeric characters:	95
	Extended graphics:	128 × 11 pages
		(including one space page)
	International characters:	37
	Japanese model:	JIS (JIS X0208-1990):

Level 1: 3489

Level 2: 3390

Multilingual character model supports printing with one of the following character sets:

Simplified Chinese (GB2312) 7580

(Using the GB5199 of the Chinese national standard font)

Traditional Chinese (Big 5) 13494

Thai characters (3-pass printing font) 128 characters × 7 pages

(133 character types)Korean Kanji (KS C5601)

	8366
2) Character structure:	Font A:	12 ×	24 (including 2-dot spacing in horizontal)
	Font B:	9 ×	17 (including 2-dot spacing in horizontal)
	Kanji:	24 ×	24
	Thai font:	12 ×	72, 9 × 51

Font A is selected as the default

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	3	2
	3	2

Confidential

3) Character size:

Refer to Table 1.2.1.

Table 1.2.1

Character Size

Standard

Double-height

Double-width

Double-width/

Double-height

W× H (mm)

cpl

W× H (mm)

cpl

W× H (mm)

cpl

W× H (mm)

cpl

Font A

12× 24

1.41× 3.39

1.41× 6.77

2.82× 3.39

2.82× 6.77

Font B

9× 17

0.99× 2.40

0.99× 4.80

1.98× 2.40

1.98× 4.80

Kanji

24 × 24

3.39× 3.39

3.39× 6.67

6.77× 3.39

6.77× 6.77

Thai

FontA

1.14× 10.16

1.41×

20.32

2.82× 10.16

2.82×

20.32

Thai

FontB

0.99× 7.20

0.99×

14.40

1.98× 7.20

1.98×

14.40

Space between

characters is

not included.

Characters can be scaled up to 64 times as large as the standard sizes.

cpl = characters per line

4) Supporting character on each model type: Refer to Table 1.2.2

Table 1.2.2 Supporting Character on Each Model Type

Product Specifications

Supported Characters

ANK model

•

Alphanumeric

---

Multilingual model

•

Extended graphics

Simplified Chinese characters

(Simplified Chinese)

•

International characters

Multilingual model

Traditional Chinese characters

(Traditional Chinese)

Multilingual model

Thai characters

(Thai)

Multilingual model

Korean characters

(Korean)

Japanese model

Japanese characters

(ANK = alphanumeric)

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	4	3
	4	3

Confidential

1.3 Autocutter

Partial cut: Cutting with one point left uncut

NOTE: To prevent dot displacement, after cutting, paper must be fed approximately 1 mm {14/360"} or more before printing.

1.4 Paper Roll Supply Device

1)	Supply method:	Drop-in paper roll
2)	Near-end sensor:
	a) Detection method:	Microswitch
	b) Paper roll spool diameter: Inside:		12 mm {0.47"}
		Outside:	18 mm {0.71"}

c) Near-end adjustment:

Can be adjusted by changing the position of the adjusting screw.

Fixed position #1 (approximately 23 mm {0.9"}) #2 (approximately 27 mm {1.06"})

NOTE: You can use a command to stop printing upon detection of a paper near-end.

1.5Paper Specification

1)	Paper type:	Specified thermal paper
2)	Form:	Paper roll
3)	Paper width:	79.5 ± 0.5 mm {3.13 ± 0.02"}
4)	Paper roll size:	Roll diameter:	Maximum 83 mm {3.26"}
		Take-up paper roll width: 80 +0.5/–1.0 mm {3.15+0.02/–0.04"}
5)	Specified paper:	Specified thermal roll paper:
		NTP080-80
		[Original paper: TF50KS-E Nippon Paper Industries Co., Ltd.]
		Packaged roll paper:
		[Original paper: PD160R (Oji Paper Mfg. Co., Ltd.)]
		In Japan: Nakagawa Manufacturing Co., Ltd.
		In U.S.A.: Nakagawa Mfg. (USA) Inc.
		In Europe: Nakagawa Mfg. (Europe) GmbH
		In Southeast Asia: N.A.K. Mfg. (Malaysia) SDN BHD
		The following paper can be used instead of the specified paper above:
		Original paper: PD190R (Oji Paper Mfg. Co., Ltd.)
			P350(F380), P310, P300
			(Kanzaki Specialty Papers, Inc. (U.S.A.))
			AF50KS-E (Jujo Thermal Oy (Finland))
6)	Paper roll spool diameter:	Inside:	12 mm {0.47"}
		Outside:	18 mm {0.71"}

NOTE: Paper must not be pasted to the paper roll spool.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	5	4
	5	4

Confidential

1.6 Printable Area

1) Paper roll

The printable area of a paper with width of 79.5 ± 0.5 mm {3.13 ± 0.02"} is 72.2 ± 0.2 mm {2.84 ± 0.008"} (512 dots) and the space on the right and left sides are approximately

3.7 ±2 mm {0.15 ± 0.079"}.

a = 79.5 ± 0.5 mm {3.13 ± 0.02"}

b = 0.141 ± 0.05 mm {0.056 ± .002"} c = 72.2 ± 0.2 mm {2.84 ± .008"}

d = 3.7 ± 0.2 mm {0.15 ± 0.079"} e = 3.7 ± 0.2 mm {0.15 ± 0.079"} [All the numeric values are typical.]

Figure 1.6.1 Paper Roll Printable Area

256

257

512

Approximately 0.07mm (0.0028")

Figure 1.6.2 Shifting of the Print Position

NOTE: The print position within the printable area of the thermal elements for dots 257 to 512 is shifted approximately 0.07 mm {0.003"} in the paper feed direction from the position for dots 1 to 256. Be sure not to print a ladder bar code across both printable areas, as this can cause variations in printing which are difficult to read. However, when the ladder bar code is printed with level 2 of print density, the difference is only approximately 0.04 0.05 mm

{0.0015 0.0019"}.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	6	5
	6	5

Confidential

1.7 Printing and Cutting Positions

Manual-cutter position Approx. 29

26.3

Approx.1415.8

Auto-cutter blade position

Paper feed direction

Center of the print dotline

[ Units: mm (All the numeric values are typical.) ]

Figure 1.7.1 Printing and Cutting Positions

NOTE: Numeric values used here are typical values; the values may vary slightly as a result of paper slack or variations in the paper. Take the notice into account when setting the cutting position of the auto-cutter.

1.8Internal Buffer

1)Receive buffer selectable as 45 bytes or 4 KB using the DIP switch.

2)User-defined buffer (both for user-defined characters and user-defined bit images): 12 KB

3)Macro buffer: 2 KB

4)NV (Non-volatile) bit image buffer: 256 KB

5)NV user memory: 1 KB

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	7	6
	7	6

Confidential

1.9 Electrical Characteristics

1) Supply voltage:

+24 VDC ± 7%

2) Current consumption (at 24V, room temperature):

High speed mode:

Mean: Approximately 1.8 A

(Character font A α -N, capital letters, 36-character rolling pattern, 42 columns printing)

Peak: Approximately 7.7 A

Low power consumption mode: Mean: Approximately 1.2 A

(Character font A α -N, capital letters, 36-character rolling pattern, 42 columns printing)

Peak: Approximately 6.6 A

Standby:

Mean: Approximately 0.2 A

NOTE: Maximum 1 A for drawer kick-out driving.

1.10 EMI and Safety Standards Applied

EMC is measured using SEIKO EPSON’s AC adapter

1) 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 Standard: EN60950
2) North America	EMI:	FCC/ICES-003 Class A
	Safety standards: UL1950/CSA C22.2 No.950
3) Japan	EMC: VCCI Class A
4) Oceania	EMC: AS/NZS 3548
5) Taiwan	EMI:	Class B

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.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	8	7
	8	7

Confidential

1.11Reliability

1)Life:

Mechanism:	15,000,000 lines
Thermal head:	100 million pulses, 100 km
Auto cutter:	1,500,000 cuts

(End of life is defined to have reached the end of its life when it reaches the beginning of the Wearout Period.)

2) MTBF:

360,000 hours

(Failure is defined as Random Failure occurring at the time of the Random Failure Period.)

3) MCBF:

52,000,000 lines

(This is an average failure interval based on failures relating to wearout and random failures up to the life of 15 million lines.)

1.12 Environmental Conditions

1) Temperature:	Operating:	5 to 45° C {41 to 113° F}
	Storage:	-10 to 50° C {14 to 122° F} (except for paper)
2) Humidity:	Operating:	10 to 90%	RH
	Storage:	10 to 90%	RH (except for paper)

[% RH]
90				34 ˚C, 90 %
80
60					40 ˚C, 65 %
60
Relative humidity					45 ˚C, 50 %
	Operating environment				45 ˚C, 50 %
40	Operating environment
40	range
	range
20
10
0	10	20	30	40	50
0	10	20	30	40	50
			Ambient		[˚C]
			Ambient
			temperature

Figure 1.12.1 Operating Temperature and Humidity Range

NOTE: If the printer is not used for a long time with paper installed, some part of the printing may be light due to the deformation of the paper. If the printer is not used for a long time with paper installed, be sure to feed paper approximately 30 mm {1.18"} before printing.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	9	8
	9	8

Confidential

3) Vibration resistance:	When Packed:	Frequency:	5 to 55 Hz
		Acceleration:	Approximately 19.6 m/s2 {2 G}
		Sweep:	10 minutes (half cycle)
		Duration:	1 hour
		Directions:	x, y, and z
	No external or internal damage should be found after the vibration test,
	and the unit should operate normally.
4) Impact resistance:	When Packed:	Package:	EPSON standard package
		Height:	60 cm {23.6"}
		Directions:	1 corner, 3 edges, and 6 surfaces
	No external or internal damage should be found after the
	drop test, and the unit should operate normally.
	When unpacked: Height:		5 cm {1.97"}
		Directions:	Lift one edge and release it
			(for all 4 edges).
	When the printer is not printing, no external or internal damage should
	be found after the drop test.
5) Acoustic noise(Operating):	When using autocutter:
		Approximately 55 dB (Bystander position)
	When not using autocutter:
		Approximately 45 dB (Bystander position)

1.13Installation

The TM-T88III series printer must be installed horizontally.

(Vibration during paper cutting and using a drawer should be considered. Take measures to prevent the printer from moving. Affixing tapes are provided as an option.)

An optional hanging bracket can attach the printer to a wall. (Following the procedures describes in the installation manual, install the wall mount and change the location of the paper roll near-end sensor, then install the paper roll stopper and other parts.)

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	10	9
	10	9

Confidential

2. CONFIGURATION

2.1Interface

2.1.1RS-232 serial interface

2.1.1.1Specifications

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, 19200, 38400 bps
	[bps: bits per second]
Data word length:	7 or 8 bits
Parity Settings:	None, even, odd
Stop bits:	1 or more
Connector (printer side):	Female DSUB-25 pin connector

NOTES: • The data word length, baud rate, and parity depend on the DIP switch settings. (Refer to Section 3.3.3.)

•The stop bit for the printer side is fixed to 1.

2.1.1.2Switching between online and offline

The printer does not have an online/offline switch.

The printer goes offline:

1)Between 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)When the cover is open.

4)During paper feeding using the paper feed button.

5)When the printer stops printing due to a paper-end (in cases when an empty paper supply is detected by either paper roll end detector or the paper roll near-end detector with a printing halt feature by ESC c 4).

6)During macro executing standby status.

7)When a temporary abnormality occurs in the power supply voltage.

8)When an error has occurred.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	11	10
	11	10

Confidential

2.1.1.3 Interface connector terminal assignments and signal functions

Interface connector terminal assignments and signal functions are described in Table 2.1.1.

Table 2.1.1 TM-T88III Printer Status and Signals

Pin	Signal	Signal	Function
number	name	direction	Function
1	FG	—	Frame ground

2	TXD	Output	Transmit data

3	RXD	Input	Receive data
4	RTS	Output	Same as DTR signal

6	DSR	Input	This signal indicates whether the host computer can receive data.
			SPACE indicates that the host computer can receive data, and MARK
			indicates that the host computer cannot receive data.
			When DTR/DSR control is selected, the printer transmits data after
			confirming this signal (except when transmitting data by DLE EOT, and
			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 (refer to Section 3.3.3).
			The printer is reset when the signal remains MARK for
			1 ms or more. (refer to Section 2.1.1.7)
7	SG	—	Signal ground

20	DTR	Output	1) When DTR/DSR control is selected, this signal indicates whether the
			printer is busy. SPACE indicates that the printer is ready to receive
			data, and MARK indicates that the printer is busy. The busy
			condition can be changed by using DIP SW 2-1 as follows (refer to
			Section 3.3.3):
						DIP SW 2-1 status
					Printer status	ON	OFF
					1. During the period from when the power is	BUSY	BUSY
					turned on (including resetting using the
					interface) to when the printer is ready to receive
					data.
					2. During the self-test.	BUSY	BUSY
				Offline	3. When the cover is open.	—	BUSY
				Offline	4. During paper feeding using the paper feed	—	BUSY
					4. During paper feeding using the paper feed	—	BUSY
					button.
					5. When the printer stops printing due to a	—	BUSY
					paper-end.
					6. During macro executing standby status.	—	BUSY
					7. When a temporary abnormality occurs in the	—	BUSY
					power supply voltage.
					8. When an error has occurred.	—	BUSY
					9. When the receive buffer becomes full.(*1)	BUSY	BUSY

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	12	11
	12	11

Confidential

	Table 2.1.1 TM-T88III Printer Status and Signals (Continued)
Pin	Signal	Signal	Function
number	name	direction	Function
number	name	direction
			2) When XON/XOFF control is selected:
			The signal indicates whether the printer is correctly connected and
			is ready to receive data. SPACE indicates that the printer is ready
			to receive data. The signal is always SPACE except in the
			following cases:
			• During the period from when the power is turned on to when the
			printer is ready to receive data
			• During the self-test
25	INIT	Input	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 SPACE for 1 ms or more.

*1 • Definition of “receive buffer full”

•When the receive buffer capacity is specified to 4 KB (DIP SW1-2 is Off):

•If the DIP SW2-5 is off, when the remaining space in the receive buffer drops to 128 bytes, the printer status becomes “buffer full” and it remains “buffer full” until the space in the receive buffer increases to 256 bytes.

•If the DIP SW2-5 is on, when the remaining space in the receive buffer drops to 128 bytes, the printer status becomes “buffer full” and it remains “buffer full” until the space in the receive buffer increases to 138 bytes.

•When the receive buffer capacity is specified to 45 bytes (DIP SW1-2 is On):

•Regardless of the DIP SW2-5 setting, when the remaining space in the receive buffer drops to 16 bytes, the printer status becomes “buffer full” and it remains “buffer full” until the space in the receive buffer increases to 26 bytes.

•The printer ignores the data received when the remaining space in the receive buffer is 0 bytes.

2.1.1.4 XON/XOFF transmit timing

When XON/XOFF control is selected, the printer transmits XON or XOFF signals as follows. Transmit timing differs depending on the DIP SW2-1 setting.

Table 2.1.2 XON/XOFF Transmit Timing

	Printer status	DIP SW 2-1 status
	Printer status	ON	OFF
		ON	OFF
XON	When the printer goes online after turning on the power (or	Transmit	Transmit
transmission	reset using interface)	Transmit	Transmit
	When the receive buffer is released from the buffer full state	Transmit	Transmit
	When the printer switches from offline to online	—	Transmit
	When the printer recovers from an error using the	—	Transmit
	DLE ENQ 1 or DLE ENQ 2 commands		Transmit
XOFF	When the receive buffer becomes full	Transmit	Transmit
Transmission	When the printer switches from online to offline	—	Transmit

NOTES: • The XON code is <11>H and the XOFF code is <13>H.

•In case , XON is not transmitted when the receive buffer is full.

•In case , XOFF is not transmitted when the receive buffer is full.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	13	12
	13	12

Confidential

2.1.1.5 Serial interface connection example

Host side	Printer side
(DTE ex.8251)
TXD ....................................	RXD
DSR ....................................	DTR
CTS ....................................	RTS
RXD....................................	TXD
DTR ....................................	DSR
FG.......................................	FG
SG ......................................	SG

NOTES: • Set the handshaking so that the transmit data can be received.

•Transmit data to the printer after turning on the power and initializing the printer.

2.1.1.6Notes on setting DIP switch 2-1 to ON

1)The printer mechanism stops but does not become busy when: an error has occurred, the cover is open, printing stops due to a paper-end, or paper is fed using the paper feed button.

2)When setting DIP switch 2-1 to ON to enable handshaking with the printer, be sure to check the printer status using the GS a command and the ASB function. In this setting, the default value of n for GS a is 2. The printer automatically transmits the printer status, depending on online/offline changes.

3)When using DLE EOT, DLE ENQ, and DLE DC4 be sure that the receive buffer does not become full.

•When using a host that cannot transmit data when the printer is busy:

If an error has occurred, DLE EOT, DLE ENQ, and DLE DC4 cannot be used when the printer is busy due to a receive buffer-full state.

•When using a host that can transmit data when the printer is busy:

When the receive buffer becomes full while transmitting bit-image data, DLE EOT, DLE ENQ or DLE DC4 used while sending the bit-image data is processed as bit-image data. The data transmitted when the receive buffer is full may be lost.

Example: Check the printer status using GS r after transmitting each line of data and use the 4 KB receive buffer. Transmit one line of data so that the receive buffer does not become full.

2.1.1.7 Notes on Resetting the Printer Using the Interface

The printer can be reset using interface pins 6 and 25 by changing the DIP switch setting (refer to Section 3.3.3, DIP switch 2).

	Table 2.1.3	Reset Switching
Signal Line	DIP Switch		Reset Condition
Pin 6 (DSR)	DSW 2-7: ON		MARK level input
Pin 25 (INIT)	DSW 2-8: ON		SPACE or TTL-HIGH level input

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	14	13
	14	13

Confidential

To reset the printer, the following requirements must be satisfied.

• DC characteristics:

Table 2.1.4 Reset DC Characteristics

		Pin 6 (DSR)	Pin 25 (INIT)
Reset active voltage	VA	-15 to -3 V	+2 to +15 V
Reset negative voltage	VN	+3 to +15 V	-15 to + 0.8 V
Reset active current	IA	-5.3 mA (maximum)	1 mA (maximum)
Reset negative current	IN	-5.0 mA (maximum)	-2 mA (maximum)
Input impedance	RIN	3 kΩ (minimum)

• AC characteristics:

Minimum reset pulse width: TRS 1 ms (minimum)

• When using pin 6 (DSR) (DIP switch 2-7 is ON):

TRS

SPACE

MARK

Figure 2.1.1 Minimum Reset Pulse Width (pin 6)

• When using pin 25 (INIT) (DIP switch 2-8 is ON):

TRS TRS

SPACE (H)

MARK (L)L

Figure 2.1.2 Minimum Reset Pulse Width (pin 25)

NOTES: • When a signal that does not satisfy the requirements above is input, printer operation is not guaranteed. When a signal is input to pin 25 (INIT) at the TTL level, the requirements above must also be satisfied. 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.

• When pin 6 (DSR) and pin 25 (INIT) are open, the printer is operating.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	15	14
	15	14

Confidential

2.1.2 IEEE 1284 Bidirectional Parallel Interface

2.1.2.1 Compatibility Mode

(Data Transmission from Host to Printer: Centronics compatible) 1) Outline

Compatibility mode supports the compatibility with Centronics parallel interface.

2)	Specifications
	Data transmission:	8-bit Parallel
	Synchronization:	Externally supplied nStrobe signals
	Handshaking:	nAck and Busy signals
	Signal levels:	TTL compatible
	Connector:	ADS-B36BLFDR176 (Honda) or equivalent (IEEE 1284 Type B)
3)	Switching between online and offline

The printer is not equipped with any online/offline switch. The printer is placed into offline status in either of the followings:

1)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.

2)During the self-test.

3)When the cover is open.

4)During paper feeding using the paper feed button.

5)When the printer stops printing due to a paper-end (in cases when empty paper supply is detected by either the paper roll end detector or the paper roll near-end detector with a printing halt due to paper shortage enabled by ESC c 4).

6)During macro executing standby status.

7)When a temporary abnormality occurs in the power supply voltage.

8)When an error has occurred.

2.1.2.2Reverse Mode (Data Transmission from Printer to Host)

The STATUS data transmission from the printer to the host is proceeded 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 (Nibble). In the Byte Mode, data transmissions are proceeded by making the eight-bits data lines bidirectional.

The both modes fail to be proceeded concurrently with the Compatibility Mode, thereby causing half duplex transmission.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	16	15
	16	15

Confidential

2.1.2.3 Interface Pin Assignments for Each Mode

Pin	Source	Compatibility Mode	Nibble Mode	Byte Mode
1	Host	nStrobe	HostClk	HostClk
2	Host/Ptr	Data0(LSB)	Data0(LSB)	Data0(LSB)
3	Host/Ptr	Data1	Data1	Data1
4	Host/Ptr	Data2	Data2	Data2
5	Host/Ptr	Data3	Data3	Data3
6	Host/Ptr	Data4	Data4	Data4
7	Host/Ptr	Data5	Data5	Data5
8	Host/Ptr	Data6	Data6	Data6
9	Host/Ptr	Data7(MSB)	Data7(MSB)	Data7(MSB)
10	Printer	nAck	PtrClk	PtrClk
11	Printer	Busy	PtrBusy/Data3, 7	PtrBusy
12	Printer	PError	AckDataReq/Data2, 6	AckDataReq
13	Printer	Select	Xflag/Data1, 5	Xflag
14	Host	nAutoFd	HostBusy	HostBusy
15		NC	ND	ND
16		GND	GND	GND
17		FG	FG	FG
18	Printer	Logic-H	Logic-H	Logic-H
19		GND	GND	GND
20		GND	GND	GND
21		GND	GND	GND
22		GND	GND	GND
23		GND	GND	GND
24		GND	GND	GND
25		GND	GND	GND
26		GND	GND	GND
27		GND	GND	GND
28		GND	GND	GND
29		GND	GND	GND
30		GND	GND	GND
31	Host	nInit	nInit	nInit
32	Printer	nFault	nDataAvail/Data0, 4	nDataAvail
33		GND	ND	ND
34	Printer	DK_STATUS	ND	ND
35	Printer	+5V	ND	ND
36	Host	nSelectIn	1284-Active	1284-Active
*NC:	Not Connected
ND:	Not Defined

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	17	16
	17	16

Confidential

NOTES: 1. A prefix “n” to signal names refers to “L” active signals. To the host provided with none of the signal lines listed above, both-way communication fails.

2.For interfacing, signal lines shall use twisted pair cables with the return sides connected to signal ground level.

3.Interfacing conditions shall be all based on the TTL level to meet the characteristics described below. In addition, both rise time and fall time of each signal shall be 0.5 s or less.

4.Data transmission shall not ignore the signal nAck or Busy. An attempt to transmit data with either signal, nAck or Busy, ignored can cause lost data. (Data transmissions to the printer shall be made after verifying the nAck signal or while the Busy signal is at the “L” level.)

5.Interface cables shall be as minimum required short in length as possible.

2.1.2.4Electrical Characteristics

DC Characteristics (Except Logic-H, +5 V signals)

Characteristics		Symbol	Specifications			Conditions
Characteristics		Symbol	Min	Max		Conditions
			Min	Max
Output HIGH voltage		VOH	*2.4 V	5.5 V		*IOH=0.32 mA
Output LOW voltage		VOL	-0.5 V	*0.4 V		*IOL=-12 mA
Output HIGH current		IOH	0.32 mA	-		VOH=2.4 V
Output LOW current		IOL	-12 mA	-		VOL=0.4 V
Input HIGH voltage		VIH	2.0 V	-
Input LOW voltage		VIL	-	0.8 V
Input HIGH current		IIH	-	-0.32 mA		VIH=2.0 V
Input LOW current		IIL	-	12 mA		VIL=0.8 V
	Logic-H Signal Sender Characteristics
Characteristics		Symbol	Specifications			Conditions
Characteristics		Symbol	Min	Max		Conditions
			Min	Max
Output HIGH voltage		VOH	3.0 V	5.5	V
Output LOW voltage		VOL	-	2.0	V	While the power is OFF

		+5 V Signal Sender Characteristics
Characteristics		Symbol	Specifications			Conditions
Characteristics		Symbol	Min	Max		Conditions
			Min	Max
Output HIGH voltage		VOH	*2.4 V	5.5	V	*IOH=0.32 mA
Output LOW voltage		VOL	-	- **		While the power is OFF
Output HIGH current		IOH	-	0.32 mA		VOH=2.4 V
Output LOW current		IOL	- **	-		While the power is OFF

** No guarantee is offered to VOL and IOL while the power is OFF.

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	18	17
	18	17

Confidential

2.1.2.5 Data Receiving Timing (Compatibility Mode)

DATA

Data n

Data n+1

tHold

nStrobe

tSetup

tSTB

Busy

Peripheral Busy

tReady

tBUSY

nAck

tReply

tACK

tnBUSY

tNext

	Characteristics	Symbol		Specifications
	Characteristics	Symbol		Min[ns]	Max[ns]
				Min[ns]	Max[ns]
	Data Hold Time (host)	tHold		750	--
	Data Setup Time	tSetup		750	--
	STROBE Pulse Width	tSTB		750	--
	READY Cycle Idle Time	tReady		0	--
	BUSY Output Delay Time	tBUSY		0	500
	Data Processing Time	tReply		0	∞
	ACKNLG Pulse Width	tACK		500	10µ s
	BUSY Release Time	tnBUSY		0	∞
	ACK Cycle Idle Time	tNext		0	--
*The printer latches data at a nStrobe ↓			timing

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	19	18
	19	18

Confidential

2.1.2.6 Notes on resetting the printer through the interface

To enable the printer reset in compatibility mode, the following signal timing shall be satisfied. However, the printer reset is ignored when the signal nSelectln (#36 pin, 1284-Actie high) is active in reverse mode.

•	DC characteristic:
	TTL level
•	AC characteristics:			50 s (min.)
	Minimum reset pulse width:		TRS	50 s (min.)
	Trailing edge period:		tf	500 ns (max.)
	Leading edge period:		tr	500 ns (max.)

	nSelectIn
	(1284-Active)
	nInit	min.0			min.1ms
	nInit

TRS

TITLE

TM-T88III series

EPSON Specification (STANDARD)

SHEET	NO.
REVISION

B	NEXT	SHEET
B	20	19
	20	19

+ 153 hidden pages