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OKIDATA OL400 Service Manual
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OKIDATA OL400 Service Manual
Table of content
Contents
Table Of Contents
Table Of Contents
Table Of Contents
Part Number
Product Specifications 1.1 Overview
Physical Specifications
Print Specifications
Paper Specifications
Power Requirements
Options
Consumables
Reliability Data
Main Control Function
Centronics Parallel Interface
RS-232C Serial Interface
Optional Font Card
Optional RAM Board / IC Set
Printer Control Function
Operation Panel
Engine Board
Power Supply Unit
Fuser Unit
Main Motor (Drum Motor)
LED Head
Resist Motor
DC Fan
Mechanical Operation Description
OL400 Printing Process
Process Descriptions
Sensors And Switches
Sensor Functions
Maintenance & Disassembly 3.1 Maintenance
Maintenance Tools
Maintenance Precautions
Disassembly/Assembly Procedures
Upper Cover
Interface Board
RAM Board (Option)
Main Controller Board
Engine Controller Circuit Board (LLAB)
Main Motor
DC Fan Assembly
Idle Gears "A" and "B", and the Reduction Gear
Upper Unit
Fusing Unit
Backup Roller
Transfer Charger Assembly
Resist Roller Assembly
Idle Gear C
Paper Supply Unit
Engine Connection Board
Hopping Roller
Separator
Ozone Filter
Adjustments And Service Checks
Actual Page Count
Modified Page Count
Vertical Print Start Position Adjustment
Setting the LED Head Drive Time
Voltage Adjustment (+5 vdc)
Darkness Control
Cleaning
Troubleshooting Updates
Reporting Problems
Troubleshooting Tips
Fault Alarms
Error Messages Table
Repair Analysis Procedures
RAP Index
RAP 01 Printer Does Not Initialize
RAP 02: Paper Feed Jam Alarm
RAP 03: Paper Jam Alarm
RAP 04: Size Tray Error Alarm
RAP 05: Engine Error - Fusing Problem Alarm
RAP 06: Engine Error Alarm
RAP 07: Light or Blurred Images
RAP 09: Blank Output
RAP 10: Vertical Black Stripes
RAP 11: Repeating Marks
RAP 12: Blank Spots
RAP 13: Vertical White Stripes
RAP 14: Black
RAP 15: Poor Fusing
Self-Tests
A.2 Charts
A.2.01 Main Controller Board (LBPE / LBPF)
A.2.02 Engine Controller Board (LLAB)
A.2.03 Operator Panel PCB (LLDC)
A.2.04 Engine Connection PCB (LLCC)
A.2.05 Centronics Parallel Interface PCB (LLCP / LLCQ)
A.2.06 RS-232C Interface PCB (LLRS)
A.2.07 Expansion RAM Board (optional) (RAMK / RAMH)
A.2.08 Power Interconnect Board (LLIE)
A.2.09 Power Supply Unit
B Illustrated Parts Listing B.1 Illustrated Parts Listing
B.1.02 Definitions of Terms
B.1.03 Parts Ordering Information
B.2 Charts
B.2.01 Items 1 - 7
Page: 31
Service Guide OL400
Chapter 2 Principles of Operation
2.5.01
Sensors and Switches
Inlet Sensor (Photosensor)
Outlet Sensor (Photosensor)
Paper Tray Identification Switches
Paper End Sensor (Photosensor)
Cover Open Switch
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This manual is suitable for:
OL400
OL800
OL820
OL830
OL840
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