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Manuals
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MICROLINE Turbo ML390
Service manual
Oki ML390 Service Manual
Dot matrix printers
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Also See for ML390
:
Safety and regulatory information manual
(28 pages)
,
Specifications
(2 pages)
,
User manual
(226 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
About this Manual
1 Product Specifications
Compatibility - Microline 390/391 Vs. Microline
Product Specifications
Paper Specifications
Physical Specifications
Power Requirements
Environmental Requirements
Agency Approvals
Options
Consumables
Memory Specifications
Reliability Specifications
2 Principles of Operation
Compatibility - Microline 390/391 Vs. Microline
Circuit Board Description
Block Diagram (Microline 390/391)
Block Diagram (Microline 390/391-Plus)
Electrical Operation - Initialization
Interface Control
Print Head Drive Circuit
Spacing Operation
Line Feed
Alarm Circuits
Space Mechanism / Operation
Head Gap Adjusting Mechanism
Ribbon Drive Mechanism / Operation
Paper Feed Mechanism
Paper-End Detection Mechanism
Semi-Automatic Sheet Feeder (SASF) Operation
Release Lever Operation
3 Maintenance & Disassembly
Maintenance - General Information
Maintenance Tools
Maintenance Precautions
Disassembly/Assembly Procedures
Operator Panel Assembly
Preliminary Items
Separator Assembly
Printhead Assembly
Upper Cover Assembly
Control Board - Rev C
IC Card (B) Panel
Transformer Revs a and B
Filter Assembly
Power Supply Board Revs a and B
Power Interconnect Module / Cable Guide - Revs a
Power Interconnect Module / Cable Guide - Rev C
Indicator Assembly (Bail Bar Assembly)
Head Cable Access Cover and Connection Board
Ribbon Feed Gear Assembly
Space Motor Assembly
Carriage Frame Assembly
Space Rack
Guide Rail
Platen Assembly
Line Feed Motor and Gear Line Feed Motor
Line Feed Motor Interconnect Module
Reset Spring, Change Gear, and Idler Gear
Release Lever
Paper Pressure Guide
Pressure Roller Assembly
Tractor Assembly
Sensor Lever
Paper End (B) Lever
Main Chassis Assembly
ADJUSTMENTS General Information
Printhead Gap Adjustment
Cleaning
Lubrication
4 Failure & Repair Analysis
Overview - Introduction
Compatibility - Microline 390/391 Vs. Microline
Troubleshooting Updates
Reporting Problems
Troubleshooting Tips
Fault Alarms
Repair Analysis Procedures - Using the RAPS
RAP Index
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
Hexadecimal Dump
Resistance / Service Checks - Index to Charts
Printhead
Space Motor
Line Feed Motor
Operator Panel Board
Control Board
Printer Tests - General Information
Rolling ASCII Print Test
Font Sample Test
Serial Interface Loopback Test
Menu Operation
Top of Form
Paper Park
Forms Tear off
Board Reference Charts - General Information
A.1.02 Compatibility - Microline 390/391 Vs. Microline
Index to Charts - Microline 390/391: Rev a and B
Control Board (SKRB) - Rev a and B
Control Board (SKRA) - Rev C and "Plus" Printers
Power Supply (PAII) - Rev a and B
Power Supply (SUII) - Rev C and "Plus" Printers
A.2.05 Filter Assembly
Operator Panel (LXSP) - Microline
Operator Panel (LXSP-5) - Microline 390/391-Plus
A.2.08 Interconnect Board (SRBS)
RS232-C Serial Interface (LXHI)
B Illustrated Parts Listing
Illustrated Parts Listing - General Information
Definitions of Terms
B.1.02 Definitions of Terms
B.1.03 Compatibility - Microline 390/391 Vs. Microline
390/391-Plus
Parts Ordering Information
Covers
Electrical Components - Rev a and B
Electrical Components - Rev C
Printer Mechanism - Rev a and B (1 of 2)
Printer Mechanism - Rev a and B (2 of 2)
Printer Mechanism - Rev C (1 of 2)
Printer Mechanism - Rev C (2 of 2)
B.2.01 Covers
B.2.02 Electrical Components - Rev a and B
B.2.03 Electrical Components - Rev C
B.2.04 Printer Mechanism - Rev a and B (1 of 2)
B.2.05 Printer Mechanism - Rev a and B (2 of 2)
B.2.06 Printer Mechanism - Rev C (1 of 2)
B.2.07 Printer Mechanism - Rev C (2 of 2)
B.2.08 Operator Panel
B.2.09 Carriage Assembly
Operator Panel
B.2.10 Tractor Assembly
Options
B.2.11 Options
Consumables
B.2.12 Consumables
Packaging
B.2.13 Packaging
Documentation
B.2.14 Documentation
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User Manual
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Table of Contents
Troubleshooting
Troubleshooting Updates
157
Troubleshooting Tips
160
Troubleshooting Cautions
171
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This manual is also suitable for:
Ml391
Ml391
Microline 390
Microline 391
Microline 390-plus
Microline 391-plus
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