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Epson LQ-870 LQ-1170 Service Manual – PDF DOWNLOAD

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Epson LQ-870 LQ-1170 Service Manual – PDF DOWNLOAD

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Description

Epson LQ-870 LQ-1170 Service Manual – PDF DOWNLOAD

FILE DETAILS:

Epson LQ-870 LQ-1170 Service Manual – PDF DOWNLOAD

Language :English
Pages :143
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

Epson LQ-870 LQ-1170 Service Manual – PDF DOWNLOAD

PREFACE
This manual describes functions, theory of electrical and mechanical
operations, maintenance, and repair of the LQ-870/l 170.
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 – Provides a general product overview, lists specifications,
and illustrates the main components of the printer.
Chapter 2 – Describes the theory of printer operation.
Chapter 3 – Includes a step-by-step guide for product disassembly and
assembly.
Chapter 4 – Includes a step-by-step guide for adjustment.
Chapter 5 – Provides Epson-approved techniques for troubleshooting.
Chapter 6 – Describes preventive maintenance techniques and lists
lubricants and adhesives required to service the equipment.

TABLE OF CONTENTS:

Epson LQ-870 LQ-1170 Service Manual – PDF DOWNLOAD

CHAPTER 1
GENERAL DESCRIPTION
FEATURES …………………………………………………………………………[email protected]…m..mmo .1o-m1.
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- .3 . .
1.2.1 Hardware Specif ications…………………………………….”””….”.. …s… 1-3
1.2.2 Firmware Specifications ……………………………………..S…………..” 1-9
PARALLEL INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- .1 . 4
CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- . 1. .6
1.4.1 Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- .1 . .6
1.4.2 Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- .1 . 7
DIP SWITCHES AND JUMPERs………………………………..S”…”.”.””.S”…”.”..” 1-18
1.5.1 DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. . -. .1 . 8
1.5.2 Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- . 1. .9
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. . -. .20
Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- . 2. .0
Hexadecimal Dump Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Paper-out Detection and Form Override Function ………..1 -21
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- .2 . 1
Buzzer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- . 2. 1
Printer Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. . -. 2. 1
Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- .2 . 2
Paper Loading and Ejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 -22
Tear-off Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- . 2. 3
Paper-Thickness Lever Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. .-24
Printer Protection for Heavy Duty Printing . . . . . . . . . . . . . . . . . . . . . . . 1. -25
MAIN COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. . -. .2 . 6
1.7.1 C060 MAIN Board (Main Control Circuit Board) ………….1 -26
1.7.2 C060 PNL Board (Control Panel Circuit Board) ……………1 -27
1.7.3 C060 PSB/PSE Board (Power Supply Circuit Board) ……1 -27
1.7.4 C060 DRV Board (Head Control Circuit Board) ……………..l -28
1.7.5 M-5D1 O/5D60 Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 .- 2. 8.
1.7.6 Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 . .- . 2. .9

S.M 1/3/2025

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