Digital Equipment LJ520 Manuals

Manuals and User Guides for Digital Equipment LJ520. We have 1 Digital Equipment LJ520 manual available for free PDF download: Service Manual

Digital Equipment LJ520 Service Manual

Digital Equipment LJ520 Service Manual (100 pages)

Brand: Digital Equipment | Category: Printer | Size: 0.83 MB

Table of Contents

Summary
3
Associated Documentation
3
Federal Communications Commission Radio Frequency Interference Statement
4
Table of Contents
5
General

9
- Introduction
  9
- Technical Characteristics
  10
- Firmware and Character Generators
  13
- Basic Emulations
  13
  - Optional Emulations
    13
  - Character Generator
    13
  - Character Set
    14
  - Basic Emulation Optional Fonts
    16
    
    Prestige Elite" Card (256 Kbytes)
    16
    
    Times Nordic" Card (256 Kbytes)
    17
    
    Nordic" Card (256 Kbytes)
    17
- Product OPTIONS
  17
Functional Description

19
- General Block Diagram
  19
- Printer Components and Internals
  20
- Black Ink-Jet Head Functioning
  23
  - Ink Jet Head Description
    23
  - How an Ink-Jet Works
    24
  - The Nozzles
    26
- Color Ink-Jet Head Functioning
  28
- Operating Controls
  32
  - Operator Panel
    32
  - Key Functions
    33
- Color Selection Lever
  36
Installation

37
- General Instructions
  37
  - Mains Power Supply
    37
  - Environmental Conditions
    37
  - Product Positioning
    37
- Unpacking
  38
  - Packing Check
    38
- Connection to the Mains
  39
- Installing the Print Head
  39
- Inserting an Optional Memory/Font Card
  41
- Paper Feed
  42
  - ASF Sheet Feed
    42
  - Manual Insertion
    44
- Sprocket Installation
  46
  - Paper Loading by Sprocket
    46
- 2Nd PAPER TRAY (ASF2) INSTALLATION
  47
  - Paper Insertion from Second ASF Drawer
    47
- Serial Interface Installation
  48
- Print Test
  49
- System Connection
  49
  - Centronics Parallel Interface
    49
- Switching off the Printer
  51
- Installation Set up
  51
  - DEFAULT Parameters
    52
  - Programmable Parameters
    53
  - System Parameter Set-Up
    58
User Maintenance

59
- Nozzle Cleaning and Ink Reset ("Prime")
  59
Diagnostics and Tests

63
Fault Conditions and Meaning

71
- Operational Status
  71
  - Fault Conditions and Indications
    72
  - Normal Conditions and Indications
    73
Mechanical Adjustments

75
Electrical Interconnections

79
- Main Board Main Components
  79
- Power Supply Board
  80
- Power Supply Circuit on Main Board
  81
- Connector Signals
  82
Parts Replacement

85

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