Epson FX-1170, FX-870 Service Manual

EPSON

EPSON TERMINAL PRINTER

FX-870/1170

SERVICE MANUAL

4001461

REV.-A

.-.

. .

{’”’

-.. ,

NOTICE

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

WARNING Signals a precaution which, if ignored, could result in damage to equipment.

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

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.

DANGER

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

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. 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

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

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. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE

3. POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.

/.LP

IN ORDER TO PROTECT SENSITIVE

4. DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

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.

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

FX-870/l

170.

REV.-A

Chapter 1 -

Chapter 2 -

Chapter 3 -

Chapter 4 -

Chapter 5 -

Chapter 6 -

● 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.

Describes preventive maintenance techniques.

iv -

REVISION SHEET

.7,,

,. :;::

. .

REVISON

DATE ISSUED

June 15, 1992

CHANGE DOCUMENT

1st issue

-v–

(“

‘?:

REV.-A

CHAPTER 1.

CHAPTER 2. CHAPTER 3. DISASSEMBLY AND ASSEMBLY CHAPTER 4. ADJUSTMENTS CHAPTER 5. CHAPTER

APPENDIX

GENERAL DESCRIPTION OPERATING PRINCIPLES

TROUBLESHOOTING

MAINTENANCE

–

vi -

CHAPTER 1

GENERAL DESCRIPTION

REV.-A

1.1

Scope

1.2 Specifications

1.3 Interface

1.4 Control Panel

1.5 Functions

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

1.1.1 Features

1.1.2 Options

1.2.1 Hardware Specifications

1.2.1.1 Printing Method

1.2.1.2 Paper Handling

1.2.1.3 Paper Specifications

1.2.1.4 Printable Area

1.2.1.5 Ribbon

1.2.1.6 Electrical Specifications

1.2.1.7 Environmental Conditions

1.2.1.8 Reliability

1.2.1.9 Safety Approvals

1.2.2 Firmware Specifications

1.2.2.1 Print Control

1.2.2.2 Input Data Buffer

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

1.3.1 Parallel Interface

1.3.2 Optional Interface

1.4.1 Components

1.4.2 Buttons

1.4.3 Indicators

1.5.1 Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5.2 Power On Default Settings

1.5.3 Buffer-full Printing

1.5.4 Hexadecimal Dump

1.5.5 Self Test

1.5.6 Paper-out Detection

1.5.7 Auto Tear-off

1.5.8 Thermal Protection

1.5.9 High Duty Printing

1.5.10 Sheet Loading and Sheet Ejection

1.5.11 Adjust Lever Operation

1.5.12 Printer Initialization

1.5.13 Buzzer ................. o.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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1-1 1-1

1-3

1-4

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Cattridge

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1-4 1-4 1-4 1-6

1-9 1-11 1-12 1-12 1-13 1-13 1-13

1-13 1-14 1-15 1-15 1-17

1-17 1-17 1-18 1-19

1-20

. 1-20

1-23 1-23 1-23 1-24 1-24 1-24

1-24 1-24 1-25 1-25 1-26

. 1-27

l-i

REV.-A

1.6 Main Components

1.6.1 BOARDASSEMBLY,C094MAlN(Main ControlCircuitBoard) ............1-29

1.6.2

BOARDASSEMBLY,C094PNL(Control Pand~HtiWd) .....-.l-3O

1.6.3 BOARD ASSEMBLY,

1.6.4 Printer Mechanism

1.6.5 Housing Assembly

~~ti...m-.--.--...--.-.m.m..-.mm.

C076PSBFSE

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

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

(Power

SuPPIY

circuit Board) ......1 -30

1-31 1-32

LIST OF FIGURES

Figure 1-1. External View of Figure 1-2. Pin Configuration Figure 1-3. Printable Area for Cut Sheets Figure 1-4. Printable Area for Continuous Paper Figure 1-5. Printable Area for Roll Paper Figure 1-6. Data Transmission Timing figure 1-7. Control Panel Figure 1-8. Hexadecimal Dump Printout Figure 1-9. Self Test Printout Figure 1-10. Lever Positions Figure 1-11. Main Components Figure 1-12. BOARD ASSEMBLY,

Figure 1-13. BOARD ASSEMBLY, C094 PNL (Control Panel Figure 1-14. BOARD Figure 1-15. Printer Mechanism

Figure 1-16. Housing Assembly

ASSEMBLY, C076

FX-870/1170

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

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C094MAIN

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

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(Main Control

PSB/PSE

(Power Supply Circuit Board) .....1 -30

circuit

Board) ...........1 -29

Cimuit

Board) .............1 -30

1-2 1-4

1-9 1-1o 1-11 1-15 1-17 1-23 1-24 1-26 1-28

1-31 1-32

Iii

. . .

LIST OF TABLES

REV.-A

Table 1-1. Line Feed Speed (1 line= 1/6”) Table 1-2. Specifications for Cut Table 1-3. Specifications for Table 1-4. Specifications for Continuous Paper Table 1-5. Specifications for Envelopes Table 1-6. Specifications for Labels Table 1-7. Specifications for Roll Paper Table 1-8. Electrical Specifications for 120V Model Table 1-9. Electrical Specifications for Table 1-10. Environmental Conditions

Table 1-11. Character Size and Pitch Table 1-12. Printable Columns Table 1-13. Print Speed

Table 1-14. Connector Pin Assignments and Signal Functions . . . . . . . . . . . . . . . . . . . . . 1-15

Table 1-15. Optional Interface Table 1-16. Group 1 Features

Table 1-17. Group 2 Features Table 1-18. Group 2 Features (IBM Mode) Table 1-19. Group 3 Features (Power-on Settings) Table 1-20. Lever Positions

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Sheets (plain paPer)

Cut She*s

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

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(ESC/P

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

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

(carbonless Dwli-tim

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

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220/240V Model

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Mode)

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

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paPer) ...”.s 1-7

1-5 1-6

1-7 1-7 1-8

1-8 1-12 1-12 1-12 1-14

1-14 1-14

1-17 1-21 1-22

1-22 1-23

1-25

l-iii

1.1

Scope

REV.-A

These specifications apply to the

EPSON

FX-87WI 170 dot matrix Printer.

1.1.1 Features

● Upward compatibility with the FX-850(+)/1050(+), FX-800/1000, FX-86e/286e

● 380

cps

(high-speed draft for both 80 and 136-column models)

● 285

cps

(draft pica), 342

● Advanced paper handling

CPS

(draft elite)

Continuous paper

-3 paths for insertion (front/bottom/rear)

- Dual paper park and auto load (front/rear)

- The standard tractor unit can be set to 3 positions (2 push and 1 pull)

- Continuous paper can be used without removing the cut-sheet feeder

(CSF)

Cut sheets

-2 paths for insertion (top/optional front)

- Auto loading

● 24K byte input buffer

● 16 character tables are supported for European model.

(Italic, pC437,

● 6 character tables are supported for Non-European model.

(Italic, pC437,

● Default setting mode replaces DIP switches.

● Type B optional l/F boards can be installed.

850,860,863,865, 437 Greek, 851,869,852,853,857, 855,866, GOST, 861)

850,860,863, 865)

Figure 1-1 shows an exterior view of the

FX-870/l 170.

1-1

REV.-A

r~..

. . .

“

80-column model

136-column model

Figure 1-1. External View of the FX-870/1170

1-2

. ,.

1.1.2 Options

REV.-A

C806371 C806372 C806391 C806392

C806381 C806382 C806401

C806402

C800201

C800202

C800211 (U.S. version) C800212 (other)

C814001

C814011

C82305 C82306 C82307 C82308 C8231O

C82311 (mm screw)

C82313

(U.S. version)

(other)

(U.S. version)

(other)

(U.S. version) (other) (U.S. version)

(other)

(U.S. version)

(other)

(inch screw) (mm screw) (inch screw) (mm screw) (inch screw)

Plain cut sheet feeder ( 80-column) Plain cut sheet feeder ( 80-column) Plain cut sheet feeder (136-column) Plain cut sheet feeder (136-column)

Cut sheet feeder ( 80-column) Cut sheet feeder ( 80-column) Cut sheet feeder (136-column) Cut sheet feeder (136-column)

Tractor unit ( 80-column) Tractor unit ( 80-column) Tractor unit (136-column) Tractor unit (136-column)

Front sheet guide ( 80-column)

Front sheet guide (136-column)

Serial l/F card Serial l/F card

32KB

intelligent serial l/F card

32KB

intelligent serial l/F card

32KB

intelligent parallel l/F card

32KB

intelligent parallel l/F card

32KB

IEEE-488 l/F card

#8750 #8755(M) #8758

#8310

Fabric ribbon cartridge ( 80-column) Fabric ribbon cartridge (136-column) Fabric ribbon sub cartridge

Roll paper holder (only for 80-column model)

1-3

REV.-A

1.2 Specifications

1.2.1 Hardware Specifications

1.2.1.1 Printing Method

Printing method:

Pin configuration: 9 wires

Impact dot matrix

(diameter 0.29 mm)

wire

2+---

3 ‘ -------

0.35mm (lf12”)

Dot matrix:

1.2.1.2 Paper Handling

Feeding method:

Fanfold: Cut sheet: Envelope: Label: Roll:

Line spacing:

9 x 7 matrix (high-speed draft) 9 x 9 matrix (draft)

18x 23 matrix

Friction feed (front/top) Push tractor feed

Pull tractor feed (front./rear/bottom) Push-pull tractor feed (front/rear)

Tractor feed

Friction feed Friction feed

Tractor feed

Friction feed

1/6”, 1/8”, or programmable (min.1/216”)

Figure 1-2. Pin Configuration

(NLQ)

(frontfrear)

.=.

!..,

{....;’

1-4

REV.-A

* Thin:

Thick:

Table 1-1. Line Feed Speed (1

Intermittent feed

Type of paper

Fanfold paper

Cut sheet (manual)

Cut sheet

(CSF)

Thin

Thick

Thickness is less than or equal to 0.18 mm. Thickness is more than 0.18 mm.

iine

1/6”)

Continuous feed

Thin

(ips)

Thick

55 (3.0) 66 (2.5)

45 (3.7) 55 (3.0)

48 (3.5) 55 (3.0)

(ips)

***** precautions for Handling Paper *****

1 ) Friction feed

● Set the release lever to the FRICTION position.

● Load the paper from the front or top entrance.

● Do not use continuous paper.

● Do not perform any reverse paper feeds within the top 8.5 m m area and bottom 22 mm area.

● Do not perform reverse feeds greater than 1/6” after the paper end has been detected.

● Use the paper-tension unit.

● Insert the multi-part cut sheet forms only from the front.

2) Push tractor feed

● Set the release lever to the REAR PUSH/FRONT PUSH position.

● Load the paper from the rear or front entrance.

● Release the friction feed mechanism.

●

M u Iti-part paper must be carbonless.

● Use the paper-tension unit.

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

● Do not perform reverse feeding after the paper end has been detected, because accuracy of paper feed

cannot be assured.

1-5

REV.-A

“-

3) Pull tractor feed

● Set the release lever to the PULL position.

● Load the paper from the front, rear, or bottom entrance.

(The front or bottom entrance is recommended for thick paper or

● Release the friction feed mechanism.

● Remove the paper-tension unit and attach the pull tractor unit.

● Insert the paper from either front or bottom.

● Multi-part paper must be carbonless.

● Do not perform reverse feeds.

labels.)

4) Push-pull tractor feed

● Set the release lever to the REAR PUSH/FRONT PUSH position.

● Load the paper from the front or rear entrance.

● Release the friction feed mechanism.

● Remove the paper-tension unit and attach the pull tractor unit.

Remove any slack in the paper between the platen and the pull tractor.

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

● Multi-part paper must be carbonless.

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

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

1.2.1.3 Paper Specifications

See Tables 1-2, 1-3, 1-4, 1-5, 1-6, and 1-7. Recycled paper, envelopes, and labels require the following environmental conditions.

Normal environment

Temperature: 15-25 deg. C (59-68 deg. F)

?!.

Humidity: 30-60

Table 1-2. Specifications for Cut Sheets (Plain Paper)

Width

top insertion

148-257 mm (5.8-10.1”) 148-420 mm (5.8-16.5”)

front insertion 182-257 mm (7.2-10.1”)

182-364 mm (7.2-14.3”)

364

Length Thickness Weight Quality

Up to

0.065-0.14 mm 14-24 lb (45-78 Kg) (52.3-90

Plain paper

mm (14.3”)

(0.0025-0.0055”)

g/m2)

80-column

136-column

80-column

136-column

Recycled paper (in normal environment)

●

... -

1-6

- . .

- . - .,. . .

1 ame 1-s. specmcawons lor uu~ mee~s [eamomess uupncamng raper]

-A

-,- - —A— ,-—

..L . -.

m .

——

R-

--–

-—

A,.-

— m- —--i

Width

front insertion

Length

Quality Thickness Weight

Copies

182-257 mm (7.2-10.1”) 182-364 mm

(7.2-14.3”)

Up to 297 mm (1 1.7”) Up to 364 mm (14.3”) Carbonless duplicating paper

0.12-0.22 mm (0.0047-0.0086”) 12-15 lb (34-50 kg) (40-58

g/m2)

4 sheets (1 original + 3 copies) maximum

80-column

136-column

80-column

136-column

- each

Table 1-4. Specifications for Continuous Paper

REV.-A

Width

101-254 mm (4-10”) 101-406 mm (4-16”)

Thickness Weight

Quality

0.065-0.32 mm (0.0025-0.012”)

14-22 lb (45-70 kg) (52.3-82 12-15 lb (34-50 kg) (40-58.2

g/m2)

Plain or carbonless duplicating paper Recycled paper (in normal environment) (with push tractor and optional pull tractor)

Copies

4 sheets (1 original + 3 copies) maximum

Table 1-5. Specifications for Envelopes

Size

No.

166 mm x 92 mm

No. 10 240 mm x 104 mm

Thickness

0.16-0.52 mm (0.0063-0.0197”) * Differences in thickness within the printing area

must be less than 0.25 mm (0.0098”).

Weight 12-24 lb (39-78 kg) (45-91

g/m2)

Quality Bond paper, plain paper, airmail

80-column

136-column

- single sheet

- each

Notes: 1) Envelopes must be inserted from the top.

2) Keep the longer side of the envelope horizontal during insertion.

3) Set the left edge of a No. 6 envelope at the sheet guide setting mark.

4) Do not feed envelopes with the cut sheet feeder.

1-7

REV.-A

Table 1-6. Specifications for Labels

“:%

Size

Thickness

Quality

Notes: 1) Labels must be fanfold.

2) Example of labels

3) Labels should be used with the pull tractor (front, bottom), or with the front push tractor.

4) Do not perform reverse feed at any time. (including by

5) Remove labels from the paper path when not in use.

Size Thickness Weight

Quality

2 1/2” X 15/16”

15/16”

4“ 4“ X 17/16”

0.07-0.09 mm (0.0028-0.0031”) - base paper

0.16-0.19 mm Plain paper

AVERY CONTINUOUS FORM AVERY MINI-LINE LABELS

Table 1-7. Specifications for Roll Paper

216

+/-

3 mm (8.5

0.07-0.09 mm

14-22

Plain paper

(0.0063-0.0075”) -

IABELS

+/-

0.12”)

(0.0028-0.0035”)

lb (45-70 Kg) (52.3-82

total

hand).

g/m2)

z i

.3.,

Note: Roll paper isavailable only forthe 80-column model optionally, and itsdiameter must notexceed 127

mm (5”).

.%,

,.,

[“

,: ,.,

1-8

. . ,.

1.2.1.4 Printable Area

Cut sheets

top insertion

front insertion

148-257 mm (5.8-10.1”): 148-420 mm (5.8-16.5”) : 136 columns 182-257 mm (7.2-10.1”):

182-364 mm (7.2-14.3”):

columns

136

columns

REV.-A

●

~ ABCD

Printable Area

T“

WXYZ

I ABCD

Figure 1-3. Printable Area for Cut Sheets

* 1 3.0 mm (0.1 2“) or more when the paper width is less than 364 mm (14.3”). 25 mm

the paper width is 420 mm (16.5”).

3.0 mm (0.12”) or more.

Note:

Paper feed accuracy cannot be assured within 24 mm (0.94”) from the bottom edge of the paper.

Paper feed accuracy cannot be assured within 48.5 mm paper.

1-9

(1.9”)

WXYZ

-1-

from the bottom edge of the

(0.9”)

or more when

(136-column)

( 80-column)

(top insertion)

(front insertion)

REV.-A

2) Continuous paper

ABCD

Printable Area

WXYZ

ABCD

4--

Figure 1-4. Printable Area for Continuous Paper

*1 13 mm (0.51”) or more when the paper width is 101 mm to 241 mm (4” to 9.5”). 25 mm (1.0”) or more

when the paper width is 254 mm (10”).

13 mm (0.51”) or more when the paper width is 101 mm to 377.8 mm (4” to 14.87”). 25 mm or more

when the paper width is 381 mm to 406 mm (15” to 16”).

WXYZ

( 80 columns) . .

(136 columns)

~~. 1

1-1o

3) Roll paper (80-column model only)

top insertion

216 +/- 3 mm (8.5

●

ABCD

. .

+/-

0.12”)

101-254 mm (4-10”): 80 columns 101-406

(4-16”): 136 columns

Printable Area

WXYZ

o 0

.--0.

0 0 0 0 0 0

0 0

o 0

0 0

REV.-A

*1 3.0

Note:

1.2.1.5

Ribbon

Color

Life of ribbon

mm (0.1 2“) or more

Paper feed accuracy cannot be assured within 24 mm (0.94”) from the bottom edge of the paper.

Ribbon Cartridge

Figure 1-5. Printable Area for Roll Paper

Cartridge type (same as FX series)

# 8750 # 8755(M) # 8758- Subcartridge

Black

3 x 106 characters (at

14 dots/character)

(top insertion only)

- 80-column model

- 136-column model

1-11

REV.-A

1.2.1.6 Electrical Specifications

See Table 1-8 and 1-9.

Table 1-8. Electrical Specifications for 120V Model

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

Dielectric strength

Table 1-9. Electrical Specifications for

120

VAC

103.5-132 V AC 50-60 Hz

49.5-60.5 Hz

1.8 A

Approx. Approx. 45 W (136 columns)

(Self test in draft mode, 10

1.0 (Between AC line and chassis)

45 W ( 80 columns)

kVAC, 1

second

220/240V

cpi)

Model

. .

. . . . .

Rated voltage Input voltage range Rated frequency range

Input frequency range Rated current Power consumption

Dielectric strength

1.2.1.7 Environmental Conditions

Table 1-10. Environmental Conditions

Temperature

Humidity 10 to 80

5 to 35

-30 to 60

5 to 85

deg.C

220-240

198-264 VAC

50-60 Hz

49.5-60.5 Hz

0.9 A

Approx. 45 W ( 80 columns) Approx. 45 W (136 columns)

(Self test in draft mode, 10

1.5

(Between AC line and chassis)

(41 to 95 deg. F) — operating

deg.C

(-22 to 140 deg. F) — in shipment container

‘Y. RH — operating

RH — non-operating

kVAC,

VAC

1 second

cpi)

f“-

Resistance to shock

Resistance to vibration

IG, within 1 ms — operating

2G, within 1 ms — non-operating

0.25G, 55 Hz max. — operating

0.50G,

55 Hz max. — non-operating

1-12

1.2.1.8 Reliability

REV.-A

MCBF

MTBF

(expected value)

5 million lines (excluding a printhead)

(MCBF:

Mean Cycles Between Failures)

4000 power on hours (duty cycle

6000 power on hours (duty cycle

Printhead

(MTBF

Life

: Mean Time Between Failures)

100 million characters (14 dots/character)

1.2.1.9 Safety Approvals

Safety standards

UL1950 CSA22.2#220

EN 60950

R.F.I

FCC class B

VDE0871

1.2.2 Firmware Specifications

with D3

(TUV)

(Self certification)

25Yo)

— 80-column model

25Yo)

—136-column model

(U.S.A model)

(EUR

model)

(U.S.A model)

(EUR

model)

1.2.2.1 Print Control

Printing direction

Text mode Bidirectional printing with logic seeking.

(Unidirectional printing can be specified by software.)

Bit image mode Unidirectional printing

Character sets

—

ESC/P

mode —

ASCII characters

International characters (13 countries) and their italics PC 437,850,860,863,865, 437 Greek, 851,869,852,853,857, 855,866, GOST, 861 (European

model) PC 437,850,860,863,865 (Non-European model)

— IBM mode —

PC 473,865 (PC = Personal Computer character table ) Fonts: Draft,

NLQ

Roman,

NLQ

Saris serif

1-13

REV.-A

Table 1-11. Character Size and Pitch

Type of letters I Width I Height I Character pitch

[mm] Pica Condensed Elite

Condensed elite \ 0.85

Table 1-12. Printable Columns

2.1

1.05

1.7 3.1

[mm]

3.1

[mm]

2.54 (10

1.48 (17

2.11 (12

1.27 (20

cpi) cpi) cpi) cpi)

f’

.,.-

.,’;:

Notes: 1)

Type of letters Printable columns

80-column model 136-column model

The printing speed for high speed draft is reduced to the value in “( )“ with thick paper (over 0.18 mm).

The printing speed for high speed draft is reduced to the value of “draft pica” when any graphic character is in the line.

The printing speed for draft is reduced to the value in “[ ]“ when any italic character is in the line.

The speed for high duty printing is reduced to approximately half of each speed, except for the

printing speed in “[ l“.

Pica

Condensed

Elite 96 163

Condensed elite

Table 1-13. Print Speed

Type of letters High-speed draft Draft pica Draft elite Condensed draft pica Emphasized draft pica

NLQ

normal pica

I I

137

160

380 285 342 243 142

speed

(320) [1421 [142] [170] [122]

[ 711

[cm]

[cpl]

136

233

272

I I

1.2.2.2 Input Data Buffer

24K

or OK bytes (selectable with power on default settings; see Section 1.5.2. )

1-14

, 1.3 Interface

This printer has a built-in, 8-bit centronics parallel interface.

1.3.1 Parallel Interface

REV.-A

Data transmission mode Synchronization Handshaking Logic level Connector plug

It is recommended that the interface cable be as

DATA

STROBE

: 0.5 us (min.) t2: 7 us t3: 5 us

8-bit parallel

Controlled by external STROBE pulse. Controlled by ACKNLG and BUSY signals.

ITL-

compatible

57-30360 (Amphenol) or equivalent

tl tl tl

(approx.) (approx.)

short

as possible

:...

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

(10

feet maximum).

Signal

Pin No. Pin No.

Return

4 5 6 7 8 26

20 DATA 1 21 22 23 24 25

Figure 1-6. Data Transmission Timing

Table 1-14. Connector Pin Assignments and Signal Functions

Signal Name

STROBE

DATA 2

DATA 3

DATA 4

DATA 5

DATA 6

DATA 7

Dir.

In In In In In In In

STROBE pulse to read data in. Pulse width must be more than

0.5 Bs at receiving terminal. These signals represent the 1st to 8th bits of parallel data, respectively. Each signal is HIGH when data is a logical 1 and LOW when a logical O.

Description

1-15

REV.-A

Signal

Pin No.

12 13 14

15 16 17

9 to 30 —

33 34 35 36 —

Return

Pin No.

30 — —

— — —

—

— — —

Signal Name

ACKNLG

BUSY

—

AUTO FEED

NC Ov CHASSIS

GND

INIT

ERROR

GND

— —

SLCT IN

Dir.

out

—

— —

—

— —

out

— —

(Continued)

Description

Approx.12 received and that the printer is ready to accept more data. A HIGH signal indicates that the printer cannot receive more data. The signal becomes HIGH in the following cases:

1. During data entry

2. During input buffer full

3. During printer error status A HIGH signal indicates that the printer is out of paper. Pulled up to +5V through a 3.3 K-ohm resistor. When this signal is LOW, paper is automatically fed one line

upon receipt of a CR code.

(The signal level can be set LOW by default.)

Not used. Logic GND level. Printer chassis GND.

In the printer, the chassis

circuited.

Not used. TWISTED-PAIR RETURN signal When the level of this signal becomes LOW, the printer

controller is reset to its initial state and the print buffer is

cleared. This signal is normally atthe HIGH level, and its pulse width must be more than 50 ps at the receiving terminal. The level of this signal becomes LOW when the printer is in —

1. Paper-out status

2. Error status TWISTED-PAIR RETURN signal GND level.

Not used.

Pulled up to The data between

is HIGH.

(The level of this signal is factory set to LOW.)

pulse. LOW indicates that data has been

GND and the logic GND are

GND level.

+5V

through a 3.3 K-ohm resistor.

DC3

and DCI is invalid when this signal

short-

.- ...,

. . .

‘

Notes: 1 ) Direction of signal flow is as viewed from the printer.

2) Return means TWISTED PAIR RETURN and is to be connected at signal ground level.

3) Be sure to use a twisted-pair cable for each signal and always complete connection on the return side. To prevent noise effectively, these cables should be shielded and connected to the chassis

of the host computer and the printer, respectively.

4) All interface conditions are based on

less than 0.2

5) Data transfer must not be carried out by ignoring the

(Data transfer to this printer can be carried out only after confirming the

the level of the BUSY signal is LOW.)

VS.

ITL

level. Both the rise and

1-16

ACKNLG

fall

times of each signal must be

or BUSY signal.

ACKNLG

signal or when .

.,.

, 1.3.2 Optional Interface

The following interface cards can be used for this printer.

Table 1-15. Optional Interface

Catalog #

C82305* (inch screw) C82306* (inch screw)

C82307* (inch screw)

C82308* (inch screw) C8231O* (inch screw) C82312* (inch screw) C82313* (inch screw) C82314* (inch screw) C82315* (inch screw) Twinax l/F card

Note: The last digit of catalog # “*” varies depending on the country.

Serial I/F card

Serial l/F card

32KB

intelligent serial l/F card

32KB

intelligent serial l/F card

32KB

intelligent parallel l/F card

32KB

intelligent parallel l/F card

Local Talk l/F card card

Coax l/F card

Type

REV.-A

1.4 Control Panel

1.4.1 Components

Buttons

OPERATE

PAUSE/TEAR OFF PAPER FEED FONT

l--

Figure 1-7. Control Panel

lock type button

(non-lock Push type buttons)

Indicators

READY — (green) FONT (Draft, Roman, Saris CONDENSED — (green)

3 LEDs

serif) — (green)

1-17

REV.-A

1.4.2 Buttons

[PAUSEI

Selects printing or pause alternately when there is some data to print in the input buffer.

Advances continuous paper to tear-off position when the printer has printed all received data and is ready to receive more print data.

,:.,

[PAPER

Advances the paper line by line using the current line spacing setting while the printer is ready to print or

paused by PAUSE button. Holding down the button for about 1 second, it advances the paper to the next top-of-form

Loads continuous paper inserted in the push tractor or cut sheets in the CSF when the printer has detected a paper out.

[FONT]

Selects (Draft (The factory setting k the Draft, uncondensed font)

The selection is executed when the button is released. The selection is stored in non-volatile memory.

Enables the micro feed function when pressed along the PAUSE or PAPER FEED button. The micro feed function is described below.

FEEDI

NLQ

Roman,

~Draft cond.~

NLQ

Saris serif, Draft, and condensed of those 3 fonts in rotation:

Roman~

Roman

cond.~

Sans.~

Saris.

cond.~

Draft

~Draft cond.

(TOF)

position.

....)

‘“’

FONTI+[PAUSEI

Activates the function. as described below:

[FONT]+ [PAUSE]

IFONTI+[PAPER FEEDI

The PAUSE and PAPER FEED buttons micro-adjust the paper position up or down,

1-18

: . .

. . . .

. .

REV.-A

Advances the paper forward by

1/108

inch per step.

IFONTl+[pApER FEEDI

Moves the paper backward by 1/108 inch per step.

Pressing FONT along with PAUSE or PAPER FEED lets you micro-adjust the following positions:

● the loading position, immediately after paper is loaded in the printer.

● the tear-off position, when paper has been advanced for tear off.

● the current print position.

The adjusted loading and tear-off positions will be stored in non-volatile memory (except for the loading position of cut sheets by manual insertion).

You can end micro feed (or micro adjust) mode by pressing the FONT button again. The printer exits this mode automatically in several seconds if no operation is performed.

Pressing FONT+ PAUSE or FONT+ PAPER FEED switches bins when a double-bin CSF is installed, there is no paper in the paper path, and friction feed is selected.

IFONTl+[pApER

FEED]

Ejects a cut sheet forward or feeds continuous paper backward to the paper park position.

1.4.3 Indicators

<READY>

Ready to print :

Tear-off :

Pause : Paper error :

Head hot :

<FONT>

Draft :

NLQ

Roman :

NLQ

Saris serif:

Normal pitch : Condensed pitch : ON

Blinking

(ls~o

duty) Blinking (50% duty) Blinking Blinking

(25’Yo (25Y0

duty)

OFF ON

Blinking

OFF

When an error occurs, the READY, FONT, and CONDENSED LEDs will be used in combination to identify the

error.

All indicators blink simultaneously: Fatal error All indicators blink sequentially in the clockwise direction: Voltage error

1-19

REV.-A

1.5 Functions

1.5.1 Default Settings

Users can set certain default parameters, which will be used at printer initialization.

To change the parameters shown in Table 1-16, Group 1 Features, follow the steps below.

Turn on the printer while pressing the FONT button. Then, the current default settings will be printed on

the paper loaded in the paper path.

LEDs

Press the FONT button to select a parameter. The FONT and CONDENSED

2. show the current parameter selected. Press the FONT button as many times as necessary to make the

LEDs

indicate the setting you want. (See Table 1-16.)

Press the PAUSE button to change the setting. The READY LED shows your selection.

turn on, off, or blink to

.!.

,,. ,

Repeat this procedure for any Group 1 feature you want to change. (After you have set the feature at the

bottom of Table 1-16, the printer returns to the first feature in Table 1-16.)

When all the settings are as you want them, turn off the printer. The settings will be stored in non-volatile

memory.

To change the settings shown in Table 1-17, Group 2 Features (IBM mode), follow the steps below.

Turn on the printer while pressing the FONT and PAUSE buttons. Then, the current CG table for either

ESC/P

or IBM mode will be printed on the paper loaded in the paper path.

Press the FONT button to select the character table. The FONT, CONDENSED, and READY

2. off, or blink to show your selection. Press the FONT button as many times as necessary until the FONT,

LEDs

CONDENSED, and READY

Turn off the printer. The settings will be stored in non-volatile memory.

indicate the character set you want.

(ESC/P

mode), or in Table 1-18, Group 2 Features

LEDs

turn on,

1-20

I ault$

I -

Iu. -g uup m rcacul ca

REV.-A

FONT

LED OFF

COND.

LED

Feature

Emulation

Setting

ESC/P

IBM Proprinter

OFF BLINKS

Character pitch

Pica OFF Elite ON

OFF

Page length 11 inch

12 inch ON

8.5 inch

70/6 inch (A4)

BLINKS

Skip over perforation

No skip Skip 1 inch ON

BLINKS OFF

Zero face

BLINKS ON

BLINKS BLINKS

Note: The factory setting is that the READY LED is OFF for all features.

Auto tear-off Valid

Invalid

Auto LF with CR Depends on l/F

Valid

READY

LED

OFF

OFF ON OFF

OFF ON OFF ON OFF ON

1-21

+ 108 hidden pages

Epson FX-1170, FX-870 Service Manual

PRECAUTIONS

PREFACE

REVISION SHEET

TABLE OF CONTENTS

GENERAL DESCRIPTION

1.2 Specifications