Printronix P9012 Manuals

Manuals and User Guides for Printronix P9012. We have 1 Printronix P9012 manual available for free PDF download: Maintenance Manual

Printronix P9012 Maintenance Manual

Printronix P9012 Maintenance Manual (256 pages)

Multifunction Line Printer

Brand: Printronix | Category: All in One Printer | Size: 4.61 MB

Table of Contents

Table of Contents
3
1 Overview

7
- Chapter Contents
  7
- About this Manual
  8
- Description
  10
  - Standard Features
    11
  - Optional Features
    11
- Control Panel Switches and Indicators
  12
- Control Panel Switches and Indicators
  13
- Mechanical Controls
  14
- I/O Panel
  16
- Tools, Test Equipment, and Supplies
  17
2 Principles of Operation

19
- Chapter Contents
  19
- Scope
  20
- Purpose
  20
- Matrix Printing
  21
  - The Dot Matrix
    21
  - The Hammer Bank
    23
  - Character Generation
    25
- Printer Functional Elements
  27
- Control Panel
  30
- Data Control Unit (DCU) PCBA
  32
- Mechanism Control Unit (MCU) PCBA
  36
- Mechanism Driver PCBA
  40
- Mechanism Driver Pcba
  42
- Hammer Driver PCBA
  43
- Hammer Bank and Shuttle Mechanics/Mpu
  46
  - Hammer Bank Assembly/Shuttle
    46
  - Magnetic Pickup Unit (MPU)
    46
- Power Supply
  48
- Ribbon Deck
  50
- Paper Feed Control Circuits
  52
- Platen Open/Paper out Switches
  54
- Safety Circuits
  55
- Normal Operation
  56
  - Character Printing
    56
  - Self-Test
    56
3 Scheduled Maintenance

59
- Chapter Contents
  59
- Preventive Maintenance Checks and Services (PMCS)
  60
- Inspecting the Printer
  61
- Cleaning the Printer
  62
  - Exterior of Cabinet
    62
  - Interior of Cabinet
    62
  - Hammer Bank Assembly
    64
4 Troubleshooting

67
- Chapter Contents
  67
- Introduction
  68
- Fault Messages
  68
  - Operator Correctable Faults
    69
  - Field Service Required
    70
    
    Change Ribbon
    71
    
    Paper Jam
    73
    
    Paper out
    74
- Symptoms Not Indicated by Fault Messages
  77
- Diagnostic Self-Tests
  80
- Running the Self-Tests
  82
- Hex Code Printout
  83
5 Alignments and Adjustments

85
- Chapter Contents
  85
- Ribbon Tracking Check and Adjustment
  86
- Ribbon Hub Height Adjustment
  88
- Setting Shuttle and Counterweight Preload
  90
- Shuttle and Counterweight Spring Adjustment
  94
- Hammer Spring Retensioning
  98
- Hammer Tip Alignment
  100
- Platen Gap
  102
- Magnetic Pickup Gap
  104
- Magnetic Pickup Phasing Adjustment
  106
- Shuttle Belt Tension
  108
- Paper Feed Belt Tension
  110
- Paper Motion Sensor
  112
- Paper out Detector
  116
6 Replacement Procedures

119
- Chapter Contents
  119
- Tools, Test Equipment, and Supplies
  121
- Side Panels
  122
- Control Panel
  124
- Ribbon Deck
  126
- Ribbon Control PCBA
  128
- Ribbon Drive Motor
  132
- Blower and Airflow Assembly
  134
- Shuttle Assembly
  136
- Hammer Spring
  140
- Hammer Coil
  146
- Counterweight Assembly
  150
- Flywheel Assembly
  154
- Cam Wick
  158
- Magnetic Pickup Unit
  160
- Shuttle Motor
  162
- Shuttle Belt
  166
- Paper Ironer
  168
- Paper Feed Belt
  170
- Paper Feed Motor
  174
- Tractors
  176
- Paper Motion Sensor
  180
- Paper out Switch
  184
- Platen Open Switch
  186
- Exhaust Fan
  188
- DCU, MCU, Mechanism Driver Pcbas
  190
  - DCU, MCU, and Mechanism Driver Pcbas
    190
- Hammer Driver and Power Supply Pcbas
  192
- Card Cage
  194
- Card Cage Fan
  204
- AC Power Bus Assembly
  206
- DC Power Bus Assembly
  208
- Hammer Driver Backplane PCBA
  210
- Logic Backplane
  212
  - Introduction
    216
  - Power Paper Stacker PCBA
    218
  - Motor Assembly
    220
  - Stacker Limit Switches
    222
  - Position Control Switch Assembly
    224
  - Emitter Assembly
    226
  - Logic Cable Assembly
    228
  - DC Power Cable Assembly
    230
  - Test the Power Paper Stacker
    232
  - Prepare the Printer for Operation
    234
  - Troubleshooting Guide
    235
Interconnect Diagram

237

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