Epson SQ - 1170, SQ - 870 Service Manual

EPSON TERMINAL PRINTER

SQ - 870/1170

4001225

REV.-A

NOTICE

“ All

rights reserved. Reproduction of any part of this manual in any from

whatsoever without SEIKO EPSON’s express written permission is forbidden. “ The contents of this manual are subject to change without notice. “ All efforts have been made to ensure the accuracy of the contents of this manual.

However, should any errors be detected, SEIKO EPSON would greatly appreciate

being informed of them. ‘ The above notwithstanding SEIKO EPSON can assume no responsibility for any

errors in this manual or the consequences thereof.

Nagano,

Japan

-i-

REV.-A

PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1 ) personal injury, and 2) damage

to equipment:

DANGER Signals a precaution which, if ignored, could result in serious or fatal personal

injury. Great caution should be exercised in performing procedures preceded by a DANGER headings.

WARNING

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

Signals a precaution which,

if ignored, could result in damage to equipment.

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND THE HOST COMPUTER BEFORE PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURE.

2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN

THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY-AC RATING DIFFERENT FROM THE AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.

4. IN ORDER TO PROTECT SENSITIVE DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS RECOMMENDED BY THE MANUFACTURER; INTRODUCTION OF SECOND-SOURCE ICS OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND

VOID ANY APPLICABLE EPSON WARRANTY.

KP CHIPS AND CIRCUITRY, USE STATIC

- ii –

PREFACE

This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of the The instructions and procedures included herein are intended for the experienced repair technician, precautions on the preceding page. The chapters are organized as follows:

and attention should be given to the

SQ-870/l

170.

REV.-A

Chapter 1 -

Chapter 2 -

Chapter 3 -

Chapter 4 -

Chapter 5 -

Chapter 6 - Describes preventive maintenance techniques.

‘

The contents of this manual are subject to change without notice.

Provides a general product overview, lists specifications, and illustrates the main components of the printer.

Describes the theory of printer operation.

Includes a step-by-step guide for product disassembly and

assembly.

Includes a step-by-step guide for adjustment.

Provides Epson-approved techniques for troubleshooting.

–

iv -

REVISION SHEET

REVISON DATE ISSUED CHANGE DOCUMENT

Feb. 21, 1992

1st issue

,:.;-.

..,,.

-v-

REV.-A

CHAPTER 1.

CHAPTER 2. CHAPTER 3. DISASSEMBLY AND ASSEMBLY CHAPTER 4. ADJUSTMENTS CHAPTER 5. TROUBLESHOOTING CHAPTER 6. MAINTENANCE

APPENDIX

GENERAL DESCRIPTION OPERATING PRINCIPLES

vi –

REV

CHAPTER 1

GENERAL DESCRIPTION

1.1

FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1-3

1.2.1 Hardware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2.2 Firmware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3

INTERFACE Overflew....... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3.1 Parallel interface...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.4

CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5

DIP SWITCHES AND JUMPER SETTING ......................................1-18

1.5.1 DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5.2 Jumper Setting

1.6

OPERATING

1.6.1

1.6.2

1.6.3

1.6.4

1.6.5

1.6.6

1.6.7

1.6.8

INSTRUCTIONS...

Self.Test...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hexadecimal Dump Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Paper-out Detection and Forms Override Function . . . . . . . . 1-20

Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Buzzer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Printer initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sheet Loading and Sheet Ejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . 1-20

1-3

1-9

..1-14

........1 -14

....1 -16

1-18

1-19

1-20

..............1 -20

1-21

...........1 -21

.........1 -22

1.6.9

1.6.10 Adjust Lever Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.6.11 Printhead Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.6.12 Ink Charge

1.6.13 Ink End Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.6.14 Cover Open Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

1.7

MAIN COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.7.1

1.7.2 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.7.3

1.7.4 Printer Mechanism

1.7.5 Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tear-off Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C076

MAIN Board (Main Control Circuit Board)

C076

PSB/PSE Board (Power Supply Circuit Board)

(M.471

O/476 O).....................................l.28

............l-26

......................1 -28

1-23

.....1 -24

1-24

1-25

......1 -27

....l-27

I.i

REV.-A

LIST OF FIGURES

Figure 1-1. Figure 1-2. Figure 1-3. Figure Figure 1-5.

Figure 1-6. Figure 1-7. Figure 1-8. Figure 1-9. Figure 1-10. Control Panel Figure 1-11. Lever Positions

Figure 1-12. Figure 1-13. Figure 1-14. Control Panel Figure 1-15.

Figure 1-16. Model-4710/4760 Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

Figure 1-17. Housing

Exterior View of the

Nozzle Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Release Lever Positions

14.

Label Size

Printable Area for Cut Sheets Printable Area for Continuous Papers

Printer Operating Environment Character Matrix

Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SQ-1 170 Component Layout

C076

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MAIN Board

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PSB/PSE Board

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SQ-1 170

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

...........................................................l

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2

.....1-3

1-4

1-5 1-6 1-6 1-8 1-13

. 1-14

1-16

1-23 1-25 1-26 1-27

-27

1-28

Table 1-1. Table 1-2. Table 1-3. Table 14. Table 1-5.

Table 1-6. Table 1-7. Table 1-8. Table 1-9. Table 1-10. Table 1-1

Table 1-12.

Table 1-13.

Table 1-14. Table 1-15. Table 1-16.

LIST OF TABLES

Interface Options

Optional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications for Cut Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications for Continuous Papers Envelopes Labels Specifications

Built in Bit-map Fonts

Printing (Text Mode) Printing (Bit Image Mode) Character Matrix and Character Size

Connector Pin Assignments and Signal Functions . . . . . 1-14

Settings for DIP Switch

Settings for DIP Switch 2 (SW2).......... . . . . . . . . . . . . . . . . . . . . . . . . . . .

International Character Set Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page Length Lever Positions

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(sw1)................................-.....1-18

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

1-2

1-4

1-4 1-5 1-5

1-9 1-1o 1-11 1-12

1-18

1-19

1-19 1-23

,..

...

Iii

1.1 FEATURES

The

SQ-870/l

that is upper compatible with the

●

Use of Ability to print multi-point fonts Ability to receive and print raster graphic images Compatibility with the Printing speeds:

●

660 550 240 200

●

Optional interface card Clear, easy-to-read printing with standard EPSON fonts

●

Multiple fonts resident in the printer

●

2 scalable fonts (Roman, Saris Serif) 8 LQ bit-map fonts (Roman, Saris Serif, Courier, Prestige, Script, Script C, Orator, Orator-S)

1 draft bit-map font

Control panel switch selection of fonts, pitch, and cut-sheet feeder

●

Optional tractor unit that can make up push-pull tractor Easy handling of cut sheets with the optional cut-sheet feeder

●

Continuous Paper Two ways to insert continuous paper (front/rear path) Backout & loading Continuous paper can be used without removing Standard tractor unit can be attached in two positions (front/rear) Cut Sheet

●

Two ways to insert cut sheets (front/top) Auto loading

170 is a high speed 48-nozzle ink jet printer which provides advanced paper handling

ESC/P

2 control codes

cps (draft, 12 cpi) cps (draft, 10 cpi)

cps (LQ, 12 cpi) cps (LQ, 10 cpi)

LQ\SQ

TSQ-4800.

series available on the market

The printer’s main features are as follows:

(CSF) bin

CSF

REV.-A

The

SQ-870/l

options ensure compatibility with a wide variety of computers. Table 1-1 lists the interface options, Table

1-2 lists the optional units available for the

the

SQ-870/l 170

170 is equipped with the standard EPSON 8-bit parallel interface and various interface

SQ-870/l

170, and Figure 1-1 shows an exterior view of

Table 1-1. Interface Options

Descriptions

1-1

NOTE: Refer

Model

C82305 C82306 C82307 C82308

C82310 C82313

to the “Optional Interface Technical Manual” for details.

Serial interface card (inch screw) Serial interface card (mini screw)

32KB serial interface card (inch screw) 32KB

serial interface card (mini screw)

32KB parallel interface card 32KB IEEE-488 interface card

REV.-A

Table 1-2. Optional Units

Model

I C80647

C80648

C80637 Second bin hopper (80 columns)

Single-bin cut-sheet feeder (80

Single-bin cut-sheet feeder (136 columns)

Descriptions

columns]

IC80640 I

C80023 C80024

SO2OO1O

Second

Figure 1-1. Exterior View of the S(2-870/1 170

binhopper(136

Tractor unit (80 columns) Tractor unit (136 columns) Ink cartridge

columns)

1-2

.,,

1.2 SPECIFICATIONS

REV.-A

This section provides specifications for the

1.2.1

Hardware Specifications

SQ-870/l

170 printer.

Printing method On-demand type ink jet system

Nozzle configuration

48 nozzles (48 X

‘o

‘g

●

1/45”

diagonal)

‘

(7.125°)

47/45”

Figure 1-2. Nozzle Configuration

Feeding methods

Friction feed (front/top) Push tractor feed (front/rear) Push-pull tractor feed (with optional tractor) (front/rear)

NOTE: Do not perform pull tractor feed.

Line spacing Paper insertion

Paper-feed speed

1/6 inch, 1/8, or programmable in units of 1/180 or 1/360 inch

Friction feed —

Tractor feed — Front or rear

Friction without

Friction with

Tractor 45

Front or top side

side

CSF 45 msec (1/6-inch feed)

4.5 inches per second

CSF 49 msec (1/6-inch feed)

4.0

ips (continuous)

msec (1/6-inch feed)

4.5

ips (continuous)

(ips) (continuous)

NOTE: Following are the precautions for handling paper.

Friction feed (release lever in FRICTION POSITION).

The paper must be loaded from the front or top entrance.

●

Do not use continuous paper.

●

Do not perform any reverse paper feeds within the top 8.5 mm (.34 in.) or bottom 22 mm (.87 in.) area.

●

Do not perform reverse feeds greater than 1/6 inch after a paper end has been detected.

●

Push tractor feed (release lever in REAR PUSH POSITION or FRONT PUSH POSITION).

The paper must be loaded from the front or rear entrance.

●

Release the friction-feed mechanism.

●

Do not perform reverse feeds greater than 1/6 inch.

●

Since accuracy of paper feed cannot be assured after the paper end has been detected, do not perform reverse feeding after the detection of a paper end.

1-3

REV.-A

3. Push-pull tractor feed (release lever in REAR PUSH POSITION or FRONT PUSH POSITION).

● The paper must be loaded from the front or rear entrance.

● Release the friction-feed mechanism.

● Attach the pull tractor unit.

O Ensure that there is no slack in the paper between the platen and the pull tractor.

● Precisely adjust the horizontal position of the pull tractor and push tractor.

● Paper for multiple copies must be spot pasted on both side of the perforation

holes.

betvveen

the tractor

● Do not perform reverse feeds greater than 1/6 inch.

● Do not perform a reverse feed after the paper end has been detected.

Figure 1-3. Release Lever Positions

Paper specifications See tables 1-3, 1-4, 1-5, and 1-6

Table 1-3. Specifications for Cut Sheets

Width

Length

Thickness 0.065 mm to 0.10 mm (0.0025 in. to 0.0039 in.)

Weight Quality

182 mrn to 257 mm

182 mm to 420 mm (7.2 in. to 16.5 in.) (136 columns) 182 mm to 364 mm (7.2 in. to 14.3 in.)

14 lb to 22

lb (52.3

Standard paper (photocopier paper, etc.)

(7.2 in. to 10.1 in.) (80 columns)

g/m2

Table 1-4. Specifications for Continuous Papers

Width

Quality Thickness Weight

I 101 mm to 254 mm (4.0 in. to 10.0 in.) (80 columns)

101 mm to 406 mm (4.0 in. to 16.0

Stan

jard

paper

0.065 mm to 0.10 mm (0.0025 in. to 0.0039 in.)

lb to 22 lb (52.3 g/m2 to 82

to 82 g/m2)

g/m2)

Rear Push Position

Release Position

in.)

(136 columns]

1-4

f-’

..:

i..)

Table 1-5. EnveIo~es

REV.-A

Size

Thickness

Weight Quality

[

NOTES: ● Printing on envelopes is available only at normal temperatures and only using top

insertion.

● Keep the longer side of the envelope horizontal during insertion.

● Place the left edge of a No. 6 envelope at the sheet guide setting mark.

Label size

Copies

Thickness 0.22 mm (0.0079 in.) maximum

NOTES: ● Printing on labels is available only at normal temperatures.

● Labels must be of the continuous type.

● Examples of labels AVERY CONTINUOUS FORM LABELS

No. 6 166 mm X 92 mm (6.5 in. X 3.625 in.) No. 10240 mm X

0.16 mm to 0.52 mm (0.0063 in. to 0.0197 in.) Differences in thickness within the printing area must be less

than 0.25 mm (0.0098 in.)

12 lb to 24 lb (45

Bond paper, standard paper, airmail

Table 1-6. Labels Specifications

2.5 in. X 0.94 in.

4.0 in. X 0.94 in.

4.0 in. X 1.44 in.

These three kinds of labels are recommended.

AVERY MINI-LINE LABELS

104 mm (9.5 in. X 4.125 in.)

g/m2

to 91

g/m2)

r’

36.5mm .44inch)

23.8mm (0.94inch)

F;;::~?nch)-

Figure 1-4 Label Size

‘

1-5

REV.-A Printable area

See figures 1-5 and 1-6

13.5rnm (0.53-inti)

182-257mm ~.2-10.lind?)

or more

60cdm

● 1: 80 columns: 3.0 mm (0.12 in.) or more when the width of paper is less than 229 mm (9 in.).

13 mm (0.51 in.) or more when the width of paper is 257 mm (10.1 in.).

136 columns: 3.0 mm (O. 12 in.) or more when the width of paper is less than 364 mm (1 4.3 in.)

25 mm (0.98 in.) or more when the width of paper is 420 mm (16.5 in.).

~~•

NOTE: The paper feed accuracy can not be assured within the following area.

Front insertion: 47 mm (1 .85 in.) from the bottom edge of paper. Rear insertion: 26 mm (1 .02 in.) from the bottom edge of paper.

Figure 1-5. Printable Area for Cut Sheets

Printable

9mm

or more

(0.35inch)

9mm

or more

(0.35inch)

Printable

101 -254mm

101 -406mm

●

max. 203mm (6.

0 0

area

0 0

ABC

o 0 0 0

-----------------

: o

0 o

ABC

-f-

[4-16inch)

Printable area

(13.6inch):

345mm

(4-10inch)

Oinch)

: 60 columns

136 columns

: 60 columns

: 136 columns

XYZ:

-1

XYzo

●

0 0 0 0 0

0 0 0 0

o 0 0

o 0

>$’

1: 80 columns:

●

136 columns:

13 mm (0.51 in.) or more when the 101 mm (4.0 in.) to 241 mm (9.5 in.) width paper is used. 26 mm (1 .02 in.) or more when the 254 mm (1 O in.) width paper is used.

13 mm (0.51 in.) or more when the “101 mm (4.0 in.) to 377.8 mm (1 4.87 in.) width paper is used.

15 mm (0.59 in.) or more when the 381 mm (15 in.) to 406 mm (16 in.) width paper is used.

Figure 1-6. Printable Area for Continuous Papers

1-6

@’

REV.-A

Ink cartridge

Type: Color: Black

Ink capacity:

Print capacity (depending on the cleaning operation):

Ink life: 2 years from production date Storage temperature:

Dimension of cartridge:

Exclusive ink cartridge

105 to 115 cc

Draft: Letter Quality: 3 million characters

–30 to 40 degrees C (–22 to 104 degrees F) -Storage

(within a month at 40 degrees C (104 degrees F))

–30 to 60 degrees C (–22 to 140 degrees F) -Transit (within a month at 40 degrees C (104 degrees F)) (within 120 hours at 60 degrees C (140 degrees F))

24.8 mm (W) X 138 mm (D) X 99.3 mm (H) (0.98 inch X 5.43 inch X 3.91 inch)

6 million characters

NOTES:

●

Ink will be frozen under –7 degrees C (19 degrees F) environment, however it will be usable after placing

it at room temperature. (It will take approx2.5 hours until melting at 25 degrees C (77 degrees F).)

● Do not use the ink cartridge which has been stored longer than the ink life.

Reliability

Life of

Safety approvals Safety

Electrical specifications 120 V version Rated voltage

printhead

Mean cycles between failures Mean time between failures

4000 million dots/nozzle

standardsULl

Radio frequency interference

950 with D3 (U. Aversion)

CSA22.2#220

EN 60950 (TUV) (European version)

Input voltage range Rated frequency range Input frequency range Rated current

Power consumption

Insulation resistance

(MCBF) 5 million lines (excluding printhead)

(MTBF)

(RFI)

4000 power on hours

duty)(SQ-870)

6000 power on hours (POH)

duty)(SQ-1 170)

FCC class B (U. Aversion)

VDE0871 (self-certification) (European version)

120

VAC

103.5 to 132

50 to 60 Hz

49.5 to 60.5 Hz

0.6 A

Approx. 30 W Approx. 30 W (SQ-1 170)

(during a self-test in draft mode, 10 cpi)

10 Megohms minimum (at 500 VDC

between AC line and chassis).

VAC

(POH) (25%

(SQ-870)

(25’%.

1-7

REV.-A

Environmental

conditions

Dielectric strength

220/240

version

Rated voltage Input voltage range Rated frequency range Input frequency range Rated current Power consumption

(during a self-test in draft mode, 10 cpi)

Insulation resistance

between AC line and chassis).

Dielectric Strength

VAC rms 1 second (between AC line

and chassis)

Temperature

10 to 35 degrees C (50 to 95 degrees F) – operating

–30 to 60 degrees C (–22 to 140 degrees F) -in shipment

container

Humidity 20 to 80 % RH - operating

5 to 85 % RH - storage

1000

VAC rms 1 minute or 1200

VAC rms 1 second (between AC line

and chassis) 220 to 240

198 to 264

VAC VAC

50 to 60 Hz

49.5 to 60.5 Hz

0.4 A

Approx. 30 W

(SQ-870)

Approx. 30 W (SQ-1 170)

10 Megohms minimum (at 500 VDC

1250

VAC rms 1 minute or 1500

.,.-:.

.,,

”’-

NOTE: Figure 1-5 shows the operating environment.

Figure 1-7. Printer Operating Environment

Resistance to shock Resistance to 0.25 G, 55 Hz, vibration

Physical specifications Weight

Dimensions 462 mm (width) X 325 mm (depth) X 205 mm (height)

1 G, within 1 ms - operating

2 G, within 1 ms - storage

0.50 G, 55 Hz,

9.5 Kg,

approx. (2 1.0 pounds, approx.)

12.2 Kg, approx. (27.0 pounds, approx.) (SQ-1 170)

18.2

in(width) X 12.8 in(depth) X 8.1 in(height)

657 mm (width) X 325 mm (depth) X 205 mm (height)

25.9

in(width) X 12.8 in(depth) X 8.1 in(height) (SQ-1 170)

Temperature (“c)

max - operating max - storage

(SQ-870)

1-8

REV.-A

1.2.2 Firmware

Control code Printing direction

Input data buffer

Character code Character tables

Bit-map fonts

Scalable fonts

EPSON Roman EPSON Saris-serif

EPSON Courier EPSON Prestige EPSON Script EPSON Script-C EPSON Orator

EPSON Orator-S EPSON DRAFT

Specifications

C/PTM

Bi-directional with logic seeking (text printing)

Uni-directional

16KB (Standard)

128KB (factory option) 8 bits Italic character table, PC 437, PC 850, PC 860, PC 863, PC 865 (PC indicates

character table for Fonts and pitches See table 1-7 EPSON Roman EPSON Saris-serif

Family No. I 10 CPI I 12 CPI I 15 CPI I Proportional

level 2 (EPSON standard code for printers)

(bit-image printing)

personal computer)

8 pt to 32 pt 8 pt to 32 pt

Table 1-7.

1 2 3 4

..-

Built in

Bit-ma~

Fonts

0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0

“

0 0 0

0 0

0 0 0

x x

●

. .

●

0-- Resident

Desired pitch is made by software using selected font

print Roman 15

CPI

xx -- Print LQ proportional font selected by ESC k

Printing modes

Selection and mixture of the following modes are allowed, excluding 15 condensed mode:

O Print quality (draft/letter quality) O Character pitch (1 O, 12, 15, or proportional) O Condensed O Double-width O Double-height O Emphasized O Double-strike O Italic O Underlined O Double-underlined O Overscore O Strike-through

O Outline

O Shadow

1-9

cpi

REV.-A Printing speed

Printing columns Character matrix Character size

Pitch

Con-

densed

0 0 0 80 136 0 0 0

0 0 0 0

See Tables 1-8 and 1-9.

See Table 1-8. See Table 1-10. See Table 1-10.

Table 1-8. Printing (Text Mode)

Empha-

sized

x x

Double

width

0 96

Printable Columns

COi.

40 68 80 40

137

68 116 96

136

233

163

Col.

Charactar Printing Speed

Pitch

(cpi)

17.1

8.5 12

(Cps)

Draft

550 275 100 400 200 100 684

342 660

330 120

480

200

342

171

240

CPI:

CPS:

LQ:

0 0 0

0 0

characters per inch characters per second letter quality

1 x x

1 1

48 81 6 240 120

160 272 20

80 136

120

204

102 7.5 412

204

102

Cannot be condensed

7.5

800 400

825 300

600

300

400 200

150

300

150

1-1o

(’J

,<..

Pins

REV.-A

Table 1-9. Printing (Bit Image Mode)

Dot

Density

(DPI)

Adjacent

Dot

Printing

Yes

256 X n2 + nl

80 Columns

480 816

136 Columns

Printing

Speed

(IPS)

DPI: IPS:

2 3 4

32 60 33 38 90

40 360 71 72 360 73 360

dots per inch

inches per second

120 120

240

120

180

Yes

No No

Yes

Yes Yes Yes Yes Yes

Yes

960 960

1920

640

720 1224 55 480 960 720

1440 2448 20

2880

1440 2448 20 2880 2880

1632 20 1632

3264

1088

816 55 1632 20 1224 55

4896 20

4896 20 4896 20

20 20

1-11

REV.-A

Table 1-10. Character Matrix and Character Size

Printing Mode

;

Draft, 10 pitch

Draft, 12 pitch

Draft, 15 pitch 11 X 32 Draft, 17 pitch 15 x 44 Draft, 20 pitch 13 x 44

LQ,

10 pitch

LQ,

12 pitch 27 X 22

LQ,

15 pitch 22 X 16

LQ,

17 pitch 16 X 44

LQ,

20 pitch

LQ,

proportional Max. 37 X 44

LQ,

proportional,

super/subscript Min. 12 X 32

Face Matrix

15 x 44

13 x 44

31 x 22

14 x 44

Min. 18 X 44

Max. 28 X 32

HOD Character Size

180 180

180

360 360 360 360 360 1.6 X 2.3

360 360

2.1 x 3.1

1.s

X 3.1

1.6 X 2.3

1.1 x 3.1

0.9 x 3.1

2.2 x

3.1

1.9 x 3.1 180

1.1

x 3.1

1.0

x 3.1

2.6 X 3.1 180

1.()

x 3.1

1.8 X 2.3 180

0.7 X 2.3

Unit

ESC

120

120 180

180 180

180

NOTES: ●

HDD

is horizontal dot density in dots per inch.

● Face matrix and character size indicate the maximum size of a character. This value is

dependent on paper, etc.

● Unit

ESC

sp (which also can be sent as unit, followed by the character string

indicates the minimum length to be added to the right of the character specified in the

SP control code.

CHR$(&h20)),

ESC

1-12

..; ,

(Normal character)

REV.-A

39 40 41

46 47

2 3 4 5 6 7

. .

/T/

/s/

(aO)

Ascender area

Descender area

Character width (CW)

/y/ //

c E

(a2)

(Sub-script character)

From dot No. 1 to 16 are not

17 18

. . .

45 46

47 48

;

3 4

. .

I while

(Super-script character)

From dot No. 33 to 48 are not

used while superscript printing.

subscri~t txinting.

—

. .

29 30 31 32

Figure 1-8. Character Matrix

1-13

REV.-A

1.3 INTERFACE OVERVIEW

The printer has a parallel interface with the

1.3.1

Parallel Interface

Specifications for the 8-bit parallel interface are as follows:

Data format Synchronization Handshaking BUSY and Signal level

Adaptable connector 57-30360 (Amphenol) or equivalent

Data transmission timing See Figure 1-9.

BUSY

ACKNLG

DATA

STROBE

o.5#s

min.

specifications described below.

8-bit parallel STROBE signal

ACKNLG signal

ITL-compatible

[

o.5/.ls

min.

o.5/ls

min.

511s

5ps

typ.

‘

Figure 1-9. Data Transmission Timing

Table 1-11 shows the connector pin assignments and signal functions of the 8-bit parallel interface.

Table 1-11. Connector Pin Assignments and Signal Functions

Pin No.

2 3 4 5 6 7 8

Signal Name

Return Dir.

Pin No.

STROBE

DATA 1 DATA 2 DATA 3 22

DATA 4 23 DATA 5 24 DATA 6 25 DATA 7 26 DATA 8 27

ACKNLG

20 21

28 OUT

IN IN IN IN IN IN IN

STROBE pulse to read the input data. Pulse width must be more than 0.5Ks. Input data is latched at falling edge of this signal.

Parallel input data to the printer. HIGH level means “ 1“. LOW level means “O”.

This pulse indicates data has been received and the

printer is ready to accept more data. Pulse width is

approximately

Functional Description

Ips.

,-.’ ,

11 12

BUSY

SLCT

OUT OUT

OUT

HIGH indicates the printer cannot accept more data. HIGH indicates paper out. This signal is effective only

when the ERROR signal is LOW, Always HIGH output (Pulled up to

ohm resistor.)

1-14

+5V

through a 3.3K

Table 1-11. Connector Pin Assignments and Signal Functions (Cont.)

Pin No.

15 16

17 18

19 to 30

32 33 34 35

Signal Name

AUTOFEED-XT

GND

Chassis

GND

I NIT

ERROR

GND

SLCT-IN

Return Dir.

Pin No.

. .

OUT

. .

OUT

IN If LOW when the printer is initialized, DC

Functional Description

If LOW when the printer is initialized, the printer

automatically performs a CR code (Auto LF).

Not used.

line feed upon input of the

Ground for twisted-pair grounding. Chassis ground level of printer. Not used. Ground for twisted-pair grounding. Pulse (width:

initialization.

50ws,

min., active LOW) input for printer

LOW indicates an error has occurred in the printer.

Ground for twisted-pair grounding. Not used.

+5V

Always HIGH. (Pulled up to

resistor.)

through 3.3K ohm

l/DC3

control is disabled.

NOTES: 1. “Dir.” indicates the direction of the signal flow as viewed from the printer.

“Return Pin No.” denotes a twisted-pair return line.

3. The cable used must be shielded to prevent noise.

4. All interface conditions are based on TTL levels. Both the rise and fall times of all signals must be less than

5. The AUTOFEED-XT signal can be set to LOW by DIP switch 2-4.

6. The SELECT-IN signal can be set to LOW by jumper 1.

7. Printing tests, including those of the interface circuits, can be performed without using

external equipment by setting DATA 1 -DATA 8 pins to the STROBE signal.

0.2Ks.

1-15

REV.-A

1.4

CONTROL PANEL

On the control

panel are: 10 non-lock type buttons, and 24 indicators.

——

Lom

-!.

I 0

111—

Figure 1-10. Control Panel

BUTTONS

(1) PAUSE Button This button controls printer action. Pressing the button toggles the printer between PAUSE condition (no printing, no paper feeding, or no data

(2) FORM FEED Button Advances the paper to the next top of from position. This switch is also used for the micro feed function.

(3) LINE FEED Button Advances the paper by one line ( 1/6 fed continuously until releasing this switch. This switch is also used for the micro feed function.

acception) and RUNNING.

inch)By pressing this switch more than 0.5 second, the paper is

(4) LOAD/EJECT Button Pushing this switch loads the paper when paper-out condition is detectedAnd ejects the paper when

out of paper condition is not detected as in the Forms Override function.

(5) TEAR-OFF/BIN l/BIN 2 Button

tractor-feed mode, pressing this button advances continuous paper to the tear-off position, and the TEAR-OFF indicator is and the selected BIN indicator is lit.

(6) MICRO FEED Button

Selects or cancels the micro feed function. When this function is enabled, the MICRO FEED indicator is lit. In the micro feed mode, the LINE FEED button is used to feed the paper forward, and the FORM FEED button is used to feed the paper backward.

Paper feed performed by this micro feed function does not affect the page position control. And this

func!ion is also used to adjust the paper loading position and to adjust the continuous paper to meet

the tear off edge.

(7) FONT Button

Pressing this button selects a font, and pressing it continuously selects the following ones in sequence. The

‘ONT

LED indicates the currently selected font.

Iitln friction-feed mode, pressing this button toggles between bin 1 and bin 2,

.’)

c“

1-16

REV.-A

(8) PITCH Button

Pushing this switch once selects the character pitch. And holding this button down selects the following

ones in sequence. PITCH indicators indicate the currently selected character pitch.

(9) RESET Button

Holding this button down more than 0.45 second, the input data buffer is cleared and the printer initialized by software as ESC

(10) CLEANING Button Holding this button down more than 0.5 second, the print head cleaning is performed. This button is

only effective in the PAUSE condition. The CLEANING button is located inside the DIP switch cover.

Cl?.

INDICATORS

(1) POWER (green)

when the printer’s power switch is on, and AC power is supplied.

Lit

(2) PAUSE (orange)

Lit when the printer is in PAUSE mode (no printing, no paper feed, or no data accepting).

(3) DATA (orange) Lit when the printer has received data from the host machine.

(4) PAPER-OUT (red)

Lit when the paper-out detector detects no paper. Refer to Section 1.6.3, Paper-out Detection and Forms Override Function.

(5) INK END (red)

Lit when the printer detects the ink empty condition.

(6) MICRO FEED (orange) Lit when the micro feed function is enabled.

(7) TEAR-OFF (orange) Lit when the sheet is advanced to the tear-off position.

(8) BIN 1 (green) Lit when bin 1 is selected.

(9) BIN 2 (green) Lit when bin 2 is selected.

(1 O) FONT (green) --Draft, Courier, Roman, Saris Serif, Prestige, Script, Script C, Orator, Orator-S

These indicators show the currently selected font.

(1 1) PITCH (green) --10

These indicators show the currently selected pitch.

CPI, 12 CPI, 15 CPI, 17 CPI, 20 CPI, PS

1-17

REV.-A

1.5 DIP SWITCHES AND JUMPER SETTING

This section describes the DIP switch selections and jumper setting for the

1.5.1 DIP Switch Settings

The two DIP switch banks for the printer, located on the control panel, are conditions as shown in tables 1-12 through 1-15. (Note that the status of the at power on or upon receipt of the INIT signal.)

Table 1.12. Settings for DIP Switch 1 (SW1)

No.

International

character set

3 4

5 6 7 OFF 8

selection

Character table selection Graphic print direction Not Used

Description ON

See

and

Table 1-14

Graphic Italic

Unidir.

OFF

Bidir.

SQ-870/l

used to set various print

DIP switches is read only

170 printer.

Factory

Setting

ON ON ON

OFF OFF OFF

OFF

Table 1-13. Settings for DIP Switch 2 (SW2)

No.

Page length of continuous paper

inch skip for continuous paper

Auto LF

Description

See Table 1-15

ON OFF

OFF

I ,

Factory Setting

[

OFF

OFF OFF OFF

I I

1-18

1-1

1-2

Table 1-14. international Character Set Selection

1-3

Country

REV.-A

ON ON ON ON ON

ON OFF OFF U.K. OFF ON ON OFF ON OFF OFF OFF

OFF

OFF OFF

OFF

Us. France Germany

Denmark 1 Sweden Italy

Spain 1

437 850 860 863

865 (437) (437)

(437)

Table 1-15. Page Length

2-1

OFF OFF

OFF

2-2

OFF

ON ON

Page Length

11 inches

12 inches

8.5 inches 70/6 inches

When SW 1-4 is ON,

If italic table was selected by

ESC

t O, country setting becomes U.S.

When SW 1-4 is OFF, if graphic table was selected by

ESC

t 1, PC becomes 437.

1.5.2 Jumper Setting

If Jumper 1 is connected to GND, the SLCT-IN signal is fixed to LOW and DC

l/DC3

control is ignored.

1-19

REV.-A

1.6 OPERATING INSTRUCTIONS

This section describes the self-test and hexadecimal dump functions as well as the error states, printer initialization, and buzzer operation.

1.6.1 Self-Test

To run the self-test using draft mode, turn the printer on while pressing the LINE FEED button. To run the self-test using the letter quality (LO) mode, turn the printer on while pressing the FORM FEED button. You can stop or start self-test printing by pressing the PAUSE button. When you are satisfied with the self-test, stop the printing by pressing the PAUSE button and turn the printer off.

The firmware revision number is printed on the first line of the self-test, followed by the current DIP

switch settings.

1.6.2 Hexadecimal Dump Function

To put the printer in hexdump mode, power it on while pressing both the LINE FEED and FORM FEED buttons. In

hexdump

the corresponding ASCII characters. This function is useful for checking the data the printer has received from the host. If input data is a control code rather than a character code, a period (.) is printed in the ASCII column.

mode, the printer prints out the hexadecimal representation of the input data, along with

“i” ,,

1.6.3 Paper-out Detection and Forms Override Function

When the paper-out detector detects a paper-out condition, the printer enters the PAUSE mode with

the following status.

PAPER OUT indicator lit BUSY signal becomes HIGH ERROR signal becomes LOW PE signal becomes HIGH

In the PAUSE mode, you can perform the “Forms Override” function by pressing the PAUSE button, or continue the printing operation by pressing the PAUSE button after loading new paper. In the forms override function, the printer ignores the paper-out condition temporarily and prints additional lines beyond the bottom line specified for the page. Once the “Forms Override” function is performed, the paper-out detection will not be enabled until paper is loaded.

1.6.4 Error Conditions

If the following conditions are detected, the printer recognizes them as errors and enters the error mode.

● Paper-out

Paper-out is detected after performing paper loading operation.

. . .

.“..

‘) :

. Ink end

Ink end condition is detected. Perform 200 lines of printing or remove the ink cartridge.

1-20

REV.-A

● Cover open

The printer lid is opened.

● Fatal errors

In the following cases, the printer recognizes them as fatal errors and enters the fatal error mode. The

fatal error condition cannot be recovered until turning the power off.

● Carriage does not move correctly

● Control circuit cannot work correctly

When the error condition is detected, the printer automatically enters ‘PAUSE’ mode and outputs appropriate interface signal. When parallel interface is selected, the following interface signals are outputted to indicate the error and to stop data transmission.

● BUSY signal becomes HIGH

● ERROR signal becomes LOW

● Output no ACKNLG pulse

● PE signal becomes HIGH (only paper out error)

1.6.5 Buzzer Operation

The buzzer sounds under the following conditions:

● A paper-out error is detected (beeps 3 times for 0.1 second respectively, with 0.1 second intervals).

● Ink end error is detected (beeps 5 times for 0.1 second respectively, with 0.1 second intervals).

● Cover open error is detected (beeps 5 times for 0.1 second respectively, with 0.1 second intervals).

● Fatal error is detected (beeps 5 times for 0.5 second respectively, with 0.5 second intervals).

● When panel setting is accepted (beeps 1 time for 0.1 second).

1.6.6 Printer Initialization

There are three initialization methods: hardware initialization, software initialization, and panel initialization.

(1) Hardware initialization

This type of initialization takes place when the printer power button is turned on with the AC power cord plugged in or when the INIT signal is received.

When the printer is initialized, it performs the following actions:

(a) Initialize printer mechanism. (b) Clears input data buffer. (c) Clears downloaded character set. (d) Clears print buffer.

(e) Returns printer settings to their default values.

1-21

REV.-A

(2) Software initialization

Input of the

perform functions (d) or(e) above. The settings changed by the last

ESC C2 command also initialize the printer. Printer initialization by

SelecType operation are maintained.

ESC C?

code does not

(3) Panel initialization

This printer can be initialized by pressing the RESET button on the front panel. When the printer is initialized in this method, the functions (b), (d) and (e) above are not performed. The settings changed by the last

SelecType

operation are maintained.

1.6.7 Default Values

When the printer is initialized, the following default values are set:

Page position Left and right margins

Line spacing Vertical tabs Horizontal tabs Family number of type style Download characters

Character spacing Printing effects Printer condition

The current paper position becomes the top-of-form position

Released

1/6 inch Cleared Every 8 characters (relative) Last font selected from the panel Kept - software initialization

Cleared - hardware initialization

Last pitch selected from the panel Cleared Not PAUSE

. ,.

1.6.8 Sheet Loading and Sheet Ejection

The release lever has a disengage capability of tractor unit drive mechanism. Therefore, this printer provides some improved paper handling in combination with the release

(a) Automatic cut sheet loading without cut sheet feeder Change the release lever to friction feed position and

put’a

cut sheet with the paper guide (rear or front

insertion).

A few seconds laster, the cut sheet is automatically loaded to the top-of-form position.

(b) Automatic cut sheet loading & ejection with cut sheet feeder Change the release lever to the friction feed position and the put sheet feeder. Pushing LOAD/EJECT button loads a sheet to the top-of-form printing starts, a sheet is automatically loaded to the top-of-form position.

into the tractor unit. Pushing LOAD/EJECT button loads the paper automatically to the top-of-form

position. If paper out is detected before printing

top-of-form position.

if LOAD/EJECT button is pushed when continuous paper is loaded, the paper is ejected backward to

the push tractor unit.

or front push position, and set the continuous paper

statis, the paper is automatically loaded to the

1-22

cut sheets into the hopper of the cut

positionlf paper out is detected before

lever.

. .

,-~.

‘“’

F.<

““

+ 146 hidden pages

Epson SQ - 1170, SQ - 870 Service Manual

PRECAUTIONS

REVISION SHEET

TABLE OF CONTENTS

GENERAL DESCRIPTION

1.2 SPECIFICATIONS