LN03 Pocket Service Guide

Company:Digital Equipment Corporation
Part:EK-0LN03-PS-004
Date:1987-03
Keywords:

Table of Contents

  • 1 Testing and Troubleshooting
    • 1.1 General
    • 1.2 Testing
      • 1.2.1 Summary Sheet Test
      • 1.2.2 Loopback Test
      • 1.2.3 Engine Drive Board Test
    • 1.3 Troubleshooting
      • 1.3.1 Common Operating Problems
      • 1.3.2 Print Engine Errors
      • 1.3.3 Controller Errors
      • 1.3.4 Interlock and Cover Open Switches
  • 2 Removal and Replacement
    • 2.1 General
    • 2.2 Paper Out Sensor
    • 2.3 Zener Diode Assembly
    • 2.4 Prefeed, Feed, and Separation Roller Assembly
    • 2.5 Front Cover
    • 2.6 Indicator Panel
    • 2.7 Paper Height Sensor
    • 2.8 Font Cartridge Case
    • 2.9 Top Cover
    • 2.10 Optical Housing Unit
    • 2.11 Main Motor Drive Board
    • 2.12 Scanner Motor Drive Board
    • 2.13 Drive Board Assembly
    • 2.14 Ozone Filter Fan
    • 2.15 Total Counter
    • 2.16 High Voltage Power Supply
    • 2.17 Inner Side Cover
    • 2.18 OPC Counter
    • 2.19 Toner Overflow Sensor
    • 2.20 OPC Sensor
    • 2.21 Registration Sensor
    • 2.22 Paper Tray Motor
    • 2.23 Cleaning Unit
    • 2.24 Main Motor
    • 2.25 Main Motor Drive Belts
    • 2.26 AC Bracket Assembly
    • 2.27 Feed and Transport Magnetic Clutches
    • 2.28 Upper and Lower Transport Rollers
    • 2.29 Fusing Unit Heater
    • 2.30 Fusing Unit
    • 2.31 Paper Exit Sensor
    • 2.32 Rear Cover
    • 2.33 Power Supply
    • 2.34 Engine Drive Board
    • 2.35 Controller Board
    • 2.36 Exhaust Fan
  • 3 Adjustments
    • 3.1 General
    • 3.2 Left Margin Adjustment
    • 3.3 Leading Edge Adjustment
    • 3.4 Drive Belt Adjustments
  • 4 LN03S Bitmap Option
    • 4.1 General
    • 4.2 LN03S Bitmap Option Board
      • 4.2.1 LN03S Troubleshooting
        • 4.2.1.1 Error Codes
        • 4.2.1.2 Summary Sheet Test
        • 4.2.1.3 Loopback Test
        • 4.2.1.4 Engine Drive Board Test
      • 4.2.2 Removal and Replacement
      • 4.2.3 Printer Checkout
  • 5 LN03R PostScript Option
    • 5.1 General
    • 5.2 PostScript Controller Board
    • 5.3 ScriptPrinter Configuration Switches
    • 5.4 Switchpack 1
      • 5.4.1 Baud Rate
      • 5.4.2 7- or 8-Bit Data Format
      • 5.4.3 Parity Enable
    • 5.5 Switchpack 2
      • 5.5.1 Parity Bit
      • 5.5.2 Restraint Flow Control
      • 5.5.3 XON/XOFF, Restraint Protocol
      • 5.5.4 Restraint Polarity
    • 5.6 LN03R ScriptPrinter Troubleshooting
      • 5.6.1 Controller Errors
      • 5.6.2 Print Engine Errors
      • 5.6.3 LN03R Summary Sheet Test
      • 5.6.4 Loopback Test
      • 5.6.5 Engine Drive Board Test
    • 5.7 Removal and Replacement
    • 5.8 Printer Checkout
  • A Recommended Spares List
  • B Configuration Switchpacks
    • B.1 Printer Configuration Switches
    • B.2 Switchpack 1
      • B.2.1 Interface Type
      • B.2.2 Baud Rate
      • B.2.3 7- or 8-Bit Data Format
      • B.2.4 Parity Enable
    • B.3 Switchpack 2
      • B.3.1 Parity Bit
      • B.3.2 Answerback Mode
      • B.3.3 Autowrap
      • B.3.4 Protocol
      • B.3.5 Restraint Polarity
  • C Physical and Functional Diagrams

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