Oki ML390 Service Manual page 5

Table of Contents
4.1 Overview - Introduction
....4.1.02 Compatibility - Microline 390/391 vs. Microline
390/391-Plus
4.2 Troubleshooting Updates
4.3 Reporting Problems
4.4 Troubleshooting Tips
4.5 Fault Alarms
4.6 Repair Analysis Procedures - Using The RAPS
....4.6.02 RAP Index
....4.6.03 Troubleshooting Cautions
........RAP 01: Operator Panel Lamps Do Not Light
........RAP 02: Abnormal Spacing
........RAP 03: Wrong or Missing Characters / Dots on Output
........RAP 04: Line Feed Problems
........RAP 05: Malfunction of Operator Panel Switch(es)
........RAP 06: Parallel Interface Does Not Receive Data
........RAP 07: Serial Interface Does Not Receive Data
4.7 Hexadecimal Dump
4.8 Resistance / Service Checks - Index To Charts
....4.8.02 Interconnect Diagrams - Microline 390/391 - Rev. A
and B
........Interconnect Diagrams - Microline 390/391 - Rev C
........Interconnect Diagrams - Microline 390/391 - Plus
....4.8.03 Printhead
....4.8.04 Space Motor
....4.8.05 Line Feed Motor
....4.8.06 Operator Panel Board
....4.8.07 Control Board
4.9 Printer Tests - General Information
....4.9.02 Rolling ASCII Print Test
....4.9.03 Font Sample Test
....4.9.04 Serial Interface Loopback Test
4.10 Menu Operation
4.11 Top Of Form
4.12 Paper Park
4.13 Forms Tear Off
A Board Diagrams
A.1 Board Reference Charts - General Information
....A.1.02 Compatibility - Microline 390/391 vs. Microline
390/391-Plus
A.2 Index To Charts - Microline 390/391: Rev A And B
....Index To Charts - Microline 390/391: Rev C
....Index To Charts - Microline 390/391 - Plus
....A.2.01 Control Board (SKRB) - Rev A and B
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