Printronix P600 Manuals

Manuals and User Guides for Printronix P600. We have 2 Printronix P600 manuals available for free PDF download: Maintenance Manual, User's Reference Manual

Printronix P600 Maintenance Manual

Printronix P600 Maintenance Manual (324 pages)

Line printer

Brand: Printronix | Category: Printer | Size: 4.44 MB

Table of Contents

Maintenance Manual
1
About this Manual
5
Table of Contents
7
Chapter 1. Maintenance Overview

15
Chapter 2. Principles of Operation

23
- Scope
  23
- Basic Functions and Circuit Locations
  23
- Principle States of Operation
  23
- Buffer Load State
  23
- Printer System Block Diagram
  24
- Power Supply Assembly
  24
- Location of Functional Elements on Pcbas
  25
- Buffer Load State Block Diagram
  28
- Interface Block Diagram
  29
- Interface Timing
  30
- Interface Signals
  31
- Print State
  32
- Dot Selection Block Diagram
  33
- Defining the Dot Matrix
  35
- Typical Characters (Data Processing Mode)
  35
- Dot Column and Character Column Timing for One Shuttle Cycle
  38
- Dot Column and Character Column Counter Block Diagram
  39
- Plotting the Six Bit Code
  41
- Hammer Driver Block Diagram
  44
- Hammer Driver Circuit Timing
  45
- Safety Circuits
  46
- Hammer Reset Timer
  47
- Dot Row Timing Vs Timing Disk and Cam Position
  49
- Operation of MPU Circuit
  50
- Hammer and Shuttle Arrangement
  51
- Print Hammer Action
  52
- Standard Character Formation
  53
- P600 Phase Fire Operation
  55
- Hammer Bank Shuttle Components
  56
  - Paper Feed State
    57
- Paper Feed Logic Block Diagram
  59
  - Line Feed Operation Velocity Profile
    61
- Timing Sequence for Printing One Character Line
  62
- Top-Of-Form Counter Block Diagram
  64
- Top-Of-Form Slewing Velocity Profile
  65
- Paper Feed to Top-Of-Form Timing
  66
- EVFU Loading Block Diagram
  68
- EVFU Loading Sequence Timing Diagram
  68
- EVFU Channel Seek Block Diagram
  70
- EVFU Channel Seek Velocity Profile
  71
- EVFU in Binary Count Mode
  72
- Paper Transport Components
  74
- Paper Motion Detector Diagram
  76
- Paper Feed Control Circuits Block Diagram
  77
- Ribbon Transport
  78
- Ribbon Drive Block Diagram
  78
- Ribbon Control PCBA Simplified Schematic
  79
- Power Supply
  83
  - V and +70 V Supplies
    85
- Reference Voltage Circuit
  86
  - V and MOS Supplies
    87
- Relay Switching Details
  89
- Motor Relay Trigger Circuit
  90
Chapter 3. Preventive Maintenance

91
Chapter 4. Troubleshooting

107
- General
  107
- Common Causes of Malfunctions
  107
- Testing
  107
- Fault Isolation
  107
  - Performance Tests
    107
- POWER Indicator Not Illuminated
  108
- ON LINE Indicator Not Illuminated
  108
- Not Printing
  108
- Light And/Or Smeared Characters
  108
- Horizontal Misalignment
  108
- Vertical Misalignment
  108
- Malfunction Symptom Index
  108
- Confidence Check
  109
- New Printer Does Not Operate
  113
- CHECK Indicator Stays on
  116
- Shuttle Does Not Accelerate to Speed When on LINE Switch Is Pressed
  120
- Ribbon Does Not Advance
  121
- Ribbon Folds over
  123
- Ribbon Not Feeding Smoothly
  124
- End of Ribbon Not Detected
  126
- Missing Characters
  130
- Missing Characters, Example of
  134
- Missing Dots
  135
- Missing Dots
  141
  - Light And/Or Smeared Characters, Example of
    144
- Misplaced Dots
  145
- Print too Light or Dark
  149
- Print too Light or Dark
  151
- Garbled Letters And/Or Wrong Font
  161
- No Paper Feed
  163
- Paper Feeds Erratically
  167
- Paper Drags
  172
- Top-Of-Form Does Not Operate
  175
- Shift Recycle Test - Sliding Pattern
  177
- Plot Pattern Test
  178
- MPU Phasing Test - All Hs
  179
- Row Increment Test - Uppercase Characters
  180
- Underline/Vertical Hammer Alignment Test
  181
Chapter 5 . Corrective Maintenance

183
Section I. GENERAL

183
- Introduction
  183
- Tools, Test Equipment, and Supplies
  183
- Tools, Test Equipment, and Supplies
  184
Section II. ALIGNMENTS and ADJUSTMENTS

185
- Ribbon Hub Height Adjustment
  185
- Ribbon Hub Height Adjustment
  186
- Ribbon Tracking Check and Adjustment
  187
- Shuttle Spring Force Adjustment
  190
- Hammer Spring Retensioning
  194
  - Hammer Tip Alignment
    196
- Setting Shuttle and Counterweight Preload
  194
- Hammer Tip Alignment
  197
- Hammer Tip Height (Protrusion) Adjustment
  198
- Hammer Tip Height Adjustment
  199
- Platen Gap
  200
  - Magnetic Pickup Gap
    202
- Magnetic Pickup Phasing Adjustment
  204
- Adapting Shuttle Motor to Line Frequency
  205
- Shuttle Belt
  206
  - Paper Feed Belt
    208
- Paper Feed Belt Tension Check and Adjustment
  209
  - Paper Motion Sensor
    210
  - Paper out Detectors
    212
Section III. REPLACEMENT

214
- Printer Cover
  214
- Cover Removal/Installation, Pedestal Models
  216
- Cover Removal/Installation, Floor Cabinet (XQ) Models
  217
- Control Panel
  218
- Control Panel Removal/Installation
  219
- Ribbon Drive
  220
- Ribbon Drive Removal/Installation, Pedestal Models
  222
- Ribbon Drive Removal/Installation, Floor Cabinet (XQ) Models
  223
  - Ribbon Control PCBA
    224
- Ribbon Control PCBA Removal/Installation, Pedestal Models
  225
  - Ribbon Drive Motor
    226
- Ribbon Drive Motor Removal/Installation
  227
  - Ribbon Drive Blower
    228
- Ribbon Drive Blower Removal/Installation, Pedestal Models
  230
- Shuttle Assembly
  232
- Hammer Spring
  238
- Hammer Spring Removal/Installation
  239
- Hammer Coil
  241
- Counterweight Assembly
  244
- Flywheel Assembly
  247
- Flywheel Assembly Removal/Installation
  248
- Cam Wick
  249
- Magnetic Pickup
  249
- Cam Wick Removal/Installation
  250
- Magnetic Pickup Removal/Installation
  251
- Shuttle Motor Removal/Installation
  253
- Shuttle Belt
  254
- Shuttle Motor
  254
- Shuttle Belt Removal/Installation
  255
- Paper Ironer
  256
- Paper Ironer Removal/Installation
  257
- Paper Feed Belt
  258
- Paper Feed Motor
  260
- Paper Feed Motor Removal/Installation
  261
- Tractor Removal/Installation
  263
- Tractor
  264
- Paper Motion Sensor Removal/Installation
  265
- Paper Motion Sensor
  266
- Paper out Mechanical Switch Removal/Installation
  267
- Paper out Optical Sensor
  268
- Paper out Optical Sensor Removal/Installation
  269
- DC Power Supply Fuse
  270
- DC Power Supply Fuses Removal/Installation
  271
- Power Supply PCBA
  272
- Power Supply PCBA Removal/Installation
  273
- Power Supply
  274
- Power Supply Removal/Installation
  275
- Rear Fan
  276
- Rear Fan Removal/Installation, Pedestal Models
  277
- Rear Fan Removal/Installation, Floor Cabinet (XQ) Models
  278
- Logic PCBA
  280
- Logic PCBA Removal/Installation
  281
- Hammer Driver PCBA
  282
- Hammer Driver PCBA Removal/Installation
  283
- Hammer Bank Cable Harness Removal/Installation
  285
- Hammer Bank Cable Harness
  287
- Parts List
  293
- Ribbon Tracking Check and Adjustment
  294
- Setting Shuttle and Counterweight Preload
  295
- Shuttle Spring Force Adjustment
  295
- Hammer Spring Retensioning
  296
- Magnetic Pickup Gap and Phasing Adjustment
  296
- Platen Gap Adjustment
  296
- Paper Motion Sensor Check and Adjustment
  297
- Paper out Detector Adjustment
  297
- Shuttle Belt Tension Check and Adjustment
  297
- Shuttle Assembly Removal/Installation
  301
  - Screw
    301
  - Washer
    301
  - Card Cage
    301
- Hammer Coil Removal/Installation
  302
  - Washer (2)
    302
- Counterweight Assembly Removal/Installation
  303
  - Screw (4)
    304
  - Nut (4)
    305
- Paper Feed Belt Removal/Installation
  306
  - Power Supply Assembly
    309
  - Power Supply Pcba
    309

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Printronix P600 User's Reference Manual

Printronix P600 User's Reference Manual (152 pages)

P-Series

Brand: Printronix | Category: Printer | Size: 5.69 MB

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