Epson LQ-860 - Impact Printer Manuel utilisateur

EPSON TERMINAL PRINTER

LQ-860/1060

TECHNICAL MANUAL

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

The precautionary measures itemized below should always be observed when performing repair/main-

tenance procedures.

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

THE

SE:RIAL

NUMBER/RATING PLATE. IF THE EPSON PROD-

UCT 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

POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS

AND/OR INDIVIDUAL CHIPS.

IN ORDER TO PROTECT SENSITIVE pP CHIPS AND CIRCUITRY, USE STATIC

DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESS-

ING 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

EPSC)N

WARRANTY.

- ii -

REV.-A

PREFACE

This manual describes functions, theory of electrical and mechanical

operations, maintenance, and repair of

the

LQ-860/l

060.

The instructions and procedures included herein are intended for the

experienced repair technician, and attention should be given to the

precautions on the preceding page. The chapters are organized as follows:

Chapter 1 -

Chapter 2 -

Chapter 3 -

Chapter 4 -

Chapter 5 -

Chapter 6 -

‘ The contents

Provides a general product overview, lists specifications,

and illustrates the main components of the printer.

Describes the theory of printer operation.

Discusses the options

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

assembly, and adjustment.

Provides Epson-approved techniques for troubleshooting.

Describes preventive maintenance techniques and lists

lubricants and adhesives required to service the equipment.

of this manual are subject to change without notice.

iv -

REVISION TABLE

REVISION DATE ISSUED

CHANGE DOCUMENT

1st issue

=)=

-v-

REV.-A TABLE OF CONTENTS

CHAPTER 1.GENERAL DESCRIPTION

CHAPTER 2.OPERATING PRINCIPLES

CHAPTER 3.OPTIONAL EQUIPMENTS

CHAPTER 4.DISASSEMBLY, ASSEMBLY, AND ADJUSTMENT

CHAPTER 5. TROUBLESHOOTING

CHAPTER 6. MAINTENANCE

APPENDIX

vi –

REV.-A

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

CHAPTER 1

GENERAL DESCRIPTION

FEATURES-=M~.”H..H..-M..M

.-.~..H.H”.UM.-.-.~.M.-.-Ho

...-.---.-.Hu.-.M1..1-1

SPECIFICATIONS

.fl.-..-~..-.~.~.-..-..-tiuu.

‘iHu.o.u..-ttio.-.--.-.-tio.-

.~.-l-3

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

..........................1-3

1.2.2 Firmware Specifications

-.-.-ti.m.-.o.tito.-.tim.-.ti

.-.~--.~.~-.~’~-..l-9

INTERFACE OVERVIEW -----

C.~..~-..-..M~MU.6fiM-H..fi.-

.m-.fi.-fifHM-.HM-.ml-13

1.3.1 8-Bit Parallel interface Specifications ---------------------------

-..-1-13

1.3.2 RS-232C Serial interface Specifications

-.-.H.,,-.-.-.MHHM.HH.M.-H.

M-1-16

DIP SWITCH

ANDJUMPERSETTINGS

...-.’fi..-.=.HH.H...-M-.H.H-.

-.~.~~-.-19l9

1.4.1 DIP Switch Settings

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

1-19

1.4.2 Jumper Settings

-..”~..-.m.M..-.-.-.H.H.fiH..-

.~.~-.~.=.~~~..~~~..~.l-21

SELF-TEST OPERATION

~--.H.-.-.H...-M-..-.fi.mo.H

.~.~.~.~.~-.~.~-.~-l.2222

HEXADECIMAL DUMP FUNCTION

...H.-..Hu..-.H.--.-..~.-M----

M-.H.u.-M.1.2323

PRINTER INITIALIZATION

..H.=..MM-~.-.H.-.M.-.-.~.-.

-.-uu..-H-.H.H.~--.ul-24

1.7.1 Hardware Initialization

~.-.-..~.-.H.H.-.-..-H.M----

H.”~-.-.~.HH.H-.-l-24

1.7.2 Software Initialization

.~~.~..~.~..--..H.u.uH.-.H.

.~~.H.--M.H.-H.~.M.l-24

1.7.3 Default Values-

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

-..-.---..--.-.--.--.-..1-24

BUZZER OPERATION AND ERROR CONDITIONS

,MH...H..-.-...H.M

-----------

.1-25

1.8.1 Buzzer Operation

~-..-.-.~H.-...o..M.H.M

-----

H.H.H-.-.-H.-..-..HH.M.1-25

1.8.2 Error Conditions

...~.-...H---.-.H.-.-.-..-H.-

.-.-u.H..~H-.-H.u.-25.l-25

MAIN COMPONENTS

-.~..-.~.M..M-..-..-M.-..M.-

H.M..~.MH-.-.-H.Hl-.oH-.Hl

-26

1.9.1 Printer Mechanism

..~~..~-.~..~.H.M.-.~.-.H.M.-

..--M..-~.~.~~.l~.-l-27

1.9.1.1 Printer Mechanism Features ---------------------------

-.-.1-27

1.9.1.2 Paper Feed Operations

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

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

1.9.2 JUNMMBoard (Main Board)

.-M-.H.~.M.H.u.H.H.M.-H.H..

M--..H.-29.-1-29

1.9.3 MONPS/MONPSE Board (Power Supply Circuit Board)

.-.-.~-.~..~1.-~l-3o

1.9.4 Control Panel

...=..~.-.~.~..f~.-~...~-.~..-

.~~.~.-..-~-.-.-~”~.-.=.-.l

-31

l-i

REV.-A

LIST OF FIGURES

Figure 1-1.

LQ-860/1060

Exterior Views

““”””””””””””””””””””””””””””””””””””””

““”””””””””””””””””””l-1

Figure 1-2.

Printheacf

Pin Configuration

-.--”-””””””””””””””””””””””””””””””””

““”””””””””””””””””””””l-3

Figure 1-3. Cut Sheet Paper Printable Area

““”””-””””””””””””””””””””””””””””””””

““”””””””””””””””l-5

Figure 1-4. Fanfold Paper Printable Area

.“”.””H””””.”-.”.””””””.”””””o”””””.”.

s“”..””.”””.””4”””””1-6

Figure 1-5. Head Adjustment Lever Positioning

““”””””””””””””””””””””””””””””””””””””

““””””””””””l-7

Figure 1-6. Character Matrix

‘s..”....””””.”””””””””””””””””””””””””

““””””””””””””””””””””””””””””””””””l-1

Figure 1-7. 8-Bit Parallel interface Data Transmission Timing

.....”.”””””””””””””””””””””1-13

Figure 1-8. 36 Pin Printer Side tinnector”-””.”-”..””””.

c.”.”””.”.”””.””””.”.””.”””””.”.””0”.

.“”1-13

Figure 1-9.

RS-232Clnterface

Handshaking,”-””.-”.”””...””..”

.“”.”””””.....-”””””””””.”””.”.””.1-1

Figure 1-10. Serial Data Transmission Timing

““””””.””””””””””””””””””””””””””””””””

““”””””””””””1-17

Figure 1-11. Serial Interface Connector

‘.””””.”””””””.”””””””””””””””’””””””””

““”””””””””””””””””””1-17

Figure 1-12. Self-Test Printing

.......””””””””””””””””””””””””””””””””

““”””””””””””””””””””””””””””’”””””l-22

Figure 1-13. Hexadecimal Dump

List”.””.”-””””.””-”....”..”.”.”””.””

““”””””””.”.”.””-””””””””s””.”1-23

Figure 1-14.

LQ-860/1060

Component Locations

“-00”.””..00”.””.o.o””-””.”””-””cc”””.”

.“s””..””1-26

Figure 1-15. Model-5810/5860 Printer Mechanism

OOC..””.....””””””..O”.....””””..””U”.

“..-..1-27

Figure 1-16. JUNMM Board Do.....”..-”.”-.-...”..”....”....”....”

.......................””....”.........l-29

Figure 1-17. MONPS Board

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

.......................................l-30

Figure 1-18. Control Panel

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

.-’.,

.~:.

.,.

,:.:

l-ii

REV.-A

LIST OF TABLES

Table 1-1.

Table 1-2.

Table 1-3.

Table 1-4.

Table 1-5.

Table 1-6.

Table 1-7.

Table 1-8.

Table 1-9.

Optional Units

........ ’......., . . . . . . .

..........

..... ”... ””..’”

““””””””””””””””””””””””””

““”

””l-2

Optional Interface

Bc~ards

-..-.~..~.~..uH”-..-.uH”-o-

““~-~”~”--”~”~””fll-2

Line Feed Speeds

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

1-4

Cut Sheet Paper Specified Conditions

-.....m.oo”-”m’ti”-”ti-””o-”ti”-

“-”-”1-4

Continuous Paper Specified Conditions

-.-.-.-..--.-.”-.--”-”--”-

“-”-””1-5

Lever Adjustment..””...’”””.”

““””.”””””-------”------s-”-”--”””””-”””

‘--””-””-””-”””””--””””-1-7

Ribbon Cartridge Specification

-..~-...--..-....-tio-o.H.-HM

“-””~~”~-””~1-7

Dimensions and Weight

-....-.~..-.~.M..--.-.o-.uM”

-“”u”-~”u”M-”H.H”M”l-8

Electrical Specifications

.~.-..-..-~..-.Hu..-.~”-H”su.

-“Mu.-”o-u”uc-.1.8-8

Table 1-10. Environmental Conditions

.-.-...--..-.-.-.-.-..--.-””

-.--.-”---”-”-”-1-8

Table l-11. Printing Mode

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

.................”..”””.””””””””””””””””

“l-lo

Table 1-12. Character Matrix and Character Size .~.-.oH-.H..co”u”.”u-H”ti”M” --”-”1-12

Table 1-13. 8-bit Parallel l/F Connector Pin Assignments

......-.....”...””.”””””””””””””””””1-1

Table l-14. Select/Deselect Control

..~~...-.-.~.~.-..ti-.ti.M.ti’o

“-””-~”~”~”-~-”-l-15

Table l-15. Serial Interface Handshaking ...---.-..M.M.-.H”~.M”MCOCO

-oH”-o-”HM”u1-16

Table l-16.

Table l-17.

Table l-18.

Table l-19.

Table l-20.

Table l-21.

Table l-22.

Table l-23.

Table l-24.

RS-232CSerial l/F Connector Pin Assignments

........-””””...”.-””-”””s””””.””1-18

DIP Switch

lSettings

.~.~~..-..~.-.~.~.-..-..-”..-

“-~”~”-”-”~”~”--”~”l-l9

International Character Set Designation

................””..””.””””””””””””””””

““””””1-19

DlPSwitch2

Settings

.-.-.~.~...-~..M.n”MM-.n”M.”

--”-”~-”~””~~”~-”-l-20

Interface Selection

~...-..f~o..~...-~H”..ti.tio.H”

“~”~~””-”---”~”~~”~”1”202o

Baud Rate Selection

..-.-.~...-.ti.ti..-..ti-ti.uo

““~~~””-”--”-”-”-~”-”l-2o

Jumper Setting

~.~.-.-..~~..-..-.~~..~--.oH

-.~.~”-.~”~”-~”~”~”-~”~””l-2

Self-Test Operation

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

1-22

Hexadecimal Dump Operation

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

““”.””.”.”-”.””””””1-23

l-iii

REV.-A

1.1 FEATURES

The

LQ-860/1080

printerS

are

multifunction~ll,

24-pin printhead, impact

dotmatrix

printers. The main

features of the these printers

are:

. Upward compatibility with the LQ-850/1050

maximum

speed

290

cps

super

draft mode at

CPI,

270

Cps

in draft mode at 12

CP1’

and of 90

CPS

in LQ mode at 12

CPI

Direct selection of font and pitch in

SelecT’YPe

feature from the

contrOl

panel

Both 8-bit parallel and

RS-232C

serial interfaces

Color

printing capability

. Push and (optional) pull tractor feeding

Advanced paper handling:

AUtomatiC

paper-loadin9/ejectin9

function

Tear-off

funCtiOn

Printing of fanfold paper without

removal

of the cut sheet feeder (option)

. Low-noise acoustics

Optional interface for the EPSON 8100 series

Optional

low-priced, single-bin and double-bin cut sheet feeders which contains

enveloPe

feedin9

capability

Figure 1-1 shows exterior views of the printers,

Table

1-1

lists

optional units available, and

Table

1-2

lists

the optional interface boards (refer to

Chapt[?r

3 for more detailed information) for the LQ-8W106O.

LQ-860

LQ-106O

Figure 1-1.

LQ-860/1060

Exterior Views

1-1

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