Digital Equipment LA400 Manuale utente
Service Manual
Order Number:ER-LA400-SV
1
Maintenance Manual Revision Record
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REVISION RECORD
Edition Date published Page Revised contents
001 June 1996 All First issue
Specification No. ER-LA400-SV
The contents of this manual may be revised without prior notice.
All Rights Reserved, Copyright 1996 Digital Equipment Corporation. Printed in Ireland.
No part of this manual may be reproduced in any form without permission.
Address your comments and inquiries on this manual to:
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LA400 Multiprinter r. 1 ER-LA400-SV
Maintenance Manual Contents
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Table of Contents
CHAPTER 1 GENERAL OVERVIEW
1.1 Introduction 1.2
1.1.1 Scope of the Products 1.2
1.1.2 Printers Features Summary 1.2
1.2 General Description 1.3
1.2.1 Physical Overview 1.3
1.2.2 Physical Dimension 1.5
1.2.3 Printer Structure 1.5
1.2.3.1 Mechanical Assy 1.6
1.2.3.1.1 Tractor Unit Assy 1.6
1.2.3.2 Print Head 1.6
1.2.3.3 Cabinet 1.6
1.2.3.4 Electronic Hardware 1.7
1.2.3.5 Inked Ribbon Cartridge 1.7
1.2.3.6 Mechanical Options 1.7
1.3 Printer Technical Specifications 1.8
CHAPTER 2 PAPER HANDLING OVERVIEW
2.1 Introduction 2.2
2.1.1 Paper Handling Architecture 2.2
2.1.2 Paper Path Configurations 2.5
2.1.2.1 Basic Configuration 2.5
2.1.2.2 Dual Fanfold Configurations 2.8
2.1.2.3 ASF Configuration 2.9
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LA400 Multiprinter i. 1 ER-LA400-SV
Maintenance Manual Contents
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Table of Contents cont'd
CHAPTER 3 ELECTRONIC HARDWARE OVERVIEW
3.1 Hardware General Overview 3.2
3.1.1 Electronic Architecture 3.3
3.1.2 Controller Overview 3.4
3.1.2.1 V55PI µProcessor 3.4
3.1.2.1.1 V55PI Internal Block Architecture 3.5
3.1.2.1.2 V55PI Block Features 3.6
3.1.2.2 ASIC 3.8
3.1.2.3 Memories 3.9
3.1.2.4 Operator Panel 3.9
3.1.2.5 Serial Interface Board 3.9
3.1.2.6 Expansion Bus 3.10
3.1.3 Mechanical Drivers 3.10
3.1.3.1 DOE Block Features 3.11
3.1.4 Power Supply Board 3.18
3.1.5 Controller SW Overview 3.20
CHAPTER 4 REMOVAL AND REPLACEMENT
4.1 Overview 4.2
4.2 Recommended Hand Tools and Equipment 4.2
4.3 ORU Order of Access 4.3
4.3.1 Front Push-Pull Tractor Group 4.4
4.3.2 Operator Panel Boards 4.5
4.3.3 Print Head 4.6
4.3.4 Front Cover Parts 4.7
4.3.5 Rear Cover Parts 4.8
4.3.6 Serial I/F Board 4.9
4.3.7 Main Board 4.10
4.3.8 Power Supply Board 4.11
4.3.9 Ribbon Motor 4.12
4.3.10 AGA Motor 4.13
4.3.11 AGA Support and T/F Lever 4.14
4.3.12 Carriage Motor 4.15
4.3.13 Bail Assy 4.16
4.3.14 Cut Sheet Assy 4.17
4.3.15 Upper Feeder Assy 4.18
4.3.16 Platen Assy 4.19
4.3.17 Lower Feeder Assy 4.20
4.3.18 Carriage Assy 4.22
4.3.19 Sensor Assy 4.23
4.3.20 Mechanical Assy 4.24
4.3.21 Paper Motor 4.25
4.3.22 Friction Bar Assy 4.26
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LA400 Multiprinter i. 2 ER-LA400-SV
Maintenance Manual Contents
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Table of Contents cont'd
CHAPTER 5 ADJUSTMENTS
5.1 Overview 5.2
5.1.1 Carriage Belt 5.2
5.1.2 Paper Belt 5.3
5.1.3 Print Head Gap 5.4
CHAPTER 6 SERVICE MAINTENANCE
6.1 Overview 6.2
6.2 Initial Ispection 6.2
6.2.1 Set-Up 6.2
6.2.2 Cleaning 6.3
6.2.3 Paper Specifications 6.3
6.2.4 Consumables 6.3
6.3 Troubleshooting Guide 6.4
6.3.1 Initializing Phase 6.4
6.3.2 Printer Errors 6.4
6.3.2.1 Status Errors 6.5
6.3.2.2 Recoverable Errors 6.5
6.3.2.3 Not Recoverable Errors 6.6
6.3.3 Power Malfunctions 6.8
6.3.3.1 P.S. Troubleshooting Guide 6.8
6.3.4 Self-Test 6.10
6.3.5 Hex-Dump 6.11
6.3.6 Faulty Probability Guide 6.12
6.4 Service Tests and Adjustments 6.16
6.4.1 Introduction 6.16
6.4.2 Loop-back Coonectors 6.16
6.4.3 Execution of the Service Adjustments 6.17
6.4.4 Execution of the Service Tests 6.19
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LA400 Multiprinter i. 3 ER-LA400-SV
Maintenance Manual Contents
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Table of Contents cont'd
CHAPTER 7 ELECTROMECHANICAL DEVICES
7.1 Overview 7.2
7.1.1 Print Head 7.2
7.1.2 Motors 7.4
7.1.2.1 Carriage Motor 7.4
7.1.2.2 Paper Motor 7.5
7.1.2.3 AGA Motor 7.6
7.1.2.4 Ribbon Motor 7.7
7.1.2.5 Alternance Motor 7.8
7.1.2.6 ASF Motor 7.9
7.1.2.7 Color Motor 7.9
7.1.2.8 Stacker Motor 7.11
7.1.3 Cables 7.12
7.1.3.1 Sensors Cable 7.12
7.1.3.2 Alternance Cable 7.13
7.1.3.3 Paper Stacker Cable 7.13
7.1.3.4 Operator Panel Cable 7.14
CHAPTER 8 OPTIONS
8.1 Overview 8.2
8.1.1 Automatic Sheet Feeder 8.2
8.1.2 Color Motor 8.6
CHAPTER 9 HW SETTING & FW INSTALLATION
9.1 Overview 9.2
9.1.1 Hardware Setting 9.2
9.1.2 Firmware Installation 9.2
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LA400 Multiprinter i. 4 ER-LA400-SV
Maintenance Manual Contents
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Figures
1.1 Basic Printer Parts Location (front view) 1.3
1.2 Basic Printer Parts Location (rear view) 1.4
1.3 Printer Internal Architecture 1.5
2.1 Paper Handling Architecture 2.4
2.2 Front Load Push-Mode 2.6
2.3 Rear Load Push-Mode 2.6
2.4 Rear (bottom) Load Pull-Mode 2.7
2.5 Front Load Push-mode and Rear Front Push-mode
with two tractors 2.7
2.6 Front Load Push-Pull with two tractors 2.8
2.7 Automatic Sheet Feeder 2.9
3.1 Electronics Structure 3.2
3.2 Electronics Architecture 3.3
3.3 Microprocessor Internal Block Diagram 3.5
3.4 DOE Blocks Diagram 3.10
3.5 Reset and Prefault Circuit 3.11
3.6 Reset and Prefault Waveforms 3.12
3.7 Color & Paper Stacker Motors Driving Circuit 3.12
3.8 Carriage and Paper Motors Driving Circuits 3.13
3.9 Ribbon and AGA Motors Driving Circuits 3.14
3.10 Color and Alternance Motors Driving Circuits 3.14
3.11 ASF Motor Driving Circuit 3.15
3.12 Sensors Driving Circuits 3.15
3.13a/b Print Head Behaviour 3.16
3.14 Print Head Needle Drivig Circuit 3.16
3.15 Print Head Needle Current Waveforms 3.17
3.16 Power Supply Major Block Diagram 3.19
3.17 Software Architecture 3.21
4.1 Front Push Tractor Group 4.4
4.2 Operator Panel Boards 4.5
4.3 Print Head 4.6
4.4 Front Cover Parts 4.7
4.5 Rear Cover Parts 4.8
4.6 Serial Interface Board 4.9
4.7 Main Board 4.10
4.8 Power Supply Board 4.11
4.9 Ribbon Motor 4.12
4.10 AGA Motor 4.13
4.11 AGA Support and T/F Lever 4.14
4.12 Carriage Motor 4.15
4.13 Bail Assy 4.16
4.14 Cut Sheet Assy 4.17
4.15 Upper Feeder Assy 4.18
4.16 Platen Assy 4.19
4.17 Lower Feeder Assy 4.21
4.18 Carriage Assy 4.22
4.19 Sensor Assy 4.23
4.20 Mechanical Assy 4.24
4.21 Paper Motor 4.25
4.22 Friction Bar Assy 4.26
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LA400 Multiprinter i. 5 ER-LA400-SV
Maintenance Manual Contents
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Figures cont'd
5.1 Carriage Assy Belt Adjustment 5.2
5.2 Paper Belt Adjustment 5.3
5.3 Print Head Adjustment 5.5
6.1 Power Supply Test Points 6.9
6.2 Self-Test Printout 6.10
6.3 Hex-Dump Printout 6.11
6.4 Serial Interface Loop-back Diagram 6.16
6.5 Parallel Interface Loop-back Diagram 6.16
6.6 Service Test Fanfold Printout 6.21
7.1 Print Head pinout 7.3
7.2 Carriage motor pin connector assignment 7.4
7.3 Paper Motor pin connector assignment 7.5
7.4 AGA Motor pin connector assignment 7.6
7.5 Ribbon Motor pin connector assignment 7.7
7.6 Color Motor pin connector assignment 7.10
7.7 Stacker Motor pin connector assignment 7.11
7.8 Sensors Cable 7.12
7.9 Alternance Cable 7.13
7.10 Paper Stacker Cable 7.13
7.11 Operator Panel Cable 7.14
8.1 1st ASF Components 8.2
8.2 ASF and Stacker Blocks Diagram 8.3
8.3 ASF Installation (rear view) 8.4
8.4 Second Bin ASF Installation 8.5
8.5 Color Motor Installation 8.6
8.6 Color Ribbon Installation 8.7
Tables
2.1 Printer Path Configurations 2.4
4.1 ORU Order of Access 4.3
6.1 Unrecoverable Error Display Messages 6.7
7.1 Print Head Resistance/Temperature Characteristics 7.2
7.2 Print Head Pin assignment 7.3
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LA400 Multiprinter i. 6 ER-LA400-SV
Maintenance Manual General Overview
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Chapter 1
General Overview
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LA400 Multiprinter 1. 1 ER-LA400-SV
Maintenance Manual General Overview
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1.1 Introduction
This Manual describes the features and the maintenance procedures for the new Digital
LA400 Multiprinter and its options.
1.1.1 Scope of the Products
This printer is an advanced impact printer which give real and efficient solutions to the
actual and future printer needs.
It is designed to be extremely flexible in paper handling and capable to manage different
paper types and formats, able to print on thick and multipart forms, specialized on dual
fanfold management in non-attended mode.
In the same time, these printers are intended to support EDP, Office and "Administrative"
environments applications requiring very high throughput, high level print quality and
graphic capabilities, either in black or in colors, in order to print listing, invoicing & billing,
spread sheets, diagrams, business or technical graphics and machine readable texts.
This printer enters the top segment of the SIDM pinter market and can be a valide and
convenient alternative to the low end line-printers.
1.1.2 Printers Features Summary
•24 wire print head.
•Draft print at 400 cps and LQ print at 133 cps
•High resolution Graphics Printing at 360x360 dpi
•DEC ANSI Conformance Level 2, IBM Proprinter XL24E and Epson
LQ2550/LQ1170 (ESC P2) resident emulations
•Paper path switching selected by operator panel or SW commands.
•Easy print function selection and printer configuration via the operator panel or with
SW commands.
•Centronics Compatible Bidirectional (IEEE-1284) parallel interface
and Moduar 6-pin DECconnect type serial interface.
•Font styles in multiple international character sets.
•Optional second tractor assembly for dual fanfold operation.
•Optional Automatic Sheet Feeder that handles cut sheets, multicopies & envelopes.
•Optional color motor for color feature printing.
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LA400 Multiprinter 1. 2 ER-LA400-SV
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