LA50 Printer Technical Manual

Company:Digital Equipment Corporation
Part:EK-0LA50-TM-001
Date:1983-03
Keywords:

Table of Contents

  • Chapter 1 General Description
    • 1.1 General
    • 1.2 Physical Description
    • 1.3 Functional Description
    • 1.4 Related Documents
  • Chapter 2 Installation
    • 2.1 General
    • 2.2 Site Considerations
    • 2.3 Unpacking and Inspection
    • 2.4 Repacking Procedures
    • 2.5 Installation Procedures
      • 2.5.1 Ribbon Installation
      • 2.5.2 Paper Installation
      • 2.5.3 Power Up and Checkout
      • 2.5.4 Interface Cable
    • 2.6 Configuration Switches
  • Chapter 3 Operator Information
    • 3.1 General
    • 3.2 Operator Tests
      • 3.2.1 Internal Self-Test
      • 3.2.2 Carriage Motion Self-Test
      • 3.2.3 Print Self-Test
      • 3.2.4 Loopback Self-Test
    • 3.3 Operator Troubleshooting
  • Chapter 4 Theory
    • 4.1 General
    • 4.2 Introduction
    • 4.3 Functional Overview
    • 4.4 Description of Functional Areas
      • 4.4.1 Microprocessor/Control System
      • 4.4.2 Communications and I/O Data Processing
        • 4.4.2.1 Data Format
        • 4.4.2.2 Data Handling
        • 4.4.2.3 Baud Rate Clocks
        • 4.4.2.4 Interface Signals
      • 4.4.3 Printhead Positioning and Printing Process
      • 4.4.4 Paper Advancing
      • 4.4.5 Power Supply
        • 4.4.5.1 Input Requirements
        • 4.4.5.2 Outputs
        • 4.4.5.3 Functional Description
  • Chapter 5 Troubleshooting
    • 5.1 General
    • 5.2 Troubleshooting
      • 5.2.1 Self-Tests
      • 5.2.2 Troubleshooting Tables
  • Chapter 6 Servicing
    • 6.1 General
    • 6.2 Removal and Replacement Procedures
      • 6.2.1 Printer Housing
      • 6.2.2 Operating Voltage Setup
      • 6.2.3 Fuse Replacement
      • 6.2.4 Printhead
      • 6.2.5 Printhead Cable
      • 6.2.6 PCB Assembly
      • 6.2.7 Paper Bail
      • 6.2.8 Platen
      • 6.2.9 Change-Gear Arm
      • 6.2.10 Ribbon Wire
      • 6.2.11 Front Panel and Carriage Stop Switch Assembly-RA, RD/Front Panel, Carriage Stop Switch and Access Cover Interlock Switch Assembly-RB, RC
      • 6.2.12 Paper-Out, Access Cover Interlock and Carriage Sensor Switch Assembly-RA, RD/Paper-Out and Carriage Sensor Switch Assembly-RB, RC
      • 6.2.13 Tractor Assembly
      • 6.2.14 Carriage Wire
      • 6.2.15 Carriage Motor
      • 6.2.16 Line Feed Motor
      • 6.2.17 Power Transformer, Power Switch, and Noise Filter
      • 6.2.18 5 V Transistor or Carriage Transistor Assembly
    • 6.3 Lubrication
  • Appendix A Parts List
  • Appendix B Escape Sequence and Switch Summary
  • Appendix C Glossary
  • Appendix D Specifications

Copies

Address: http://dundas-mac.caltech.edu/%7Edundas/retro/Printers/ek-ola50-tm-001.pdf
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