Croma24 Service Manual
Table of Contents
Chapter 1 General Description | 17 |
Introduction | 17 |
Overview | 18 |
Related Publications | 18 |
Electrostatic Discharge (ESD) Sensitivity | 18 |
Warnings, Cautions, and Notes | 19 |
Printer Specifications | 20 |
Contents of this Service Manual | 21 |
Technical Support | 23 |
Chapter 2 Theory of Operation | 25 |
Introduction | 25 |
Croma24 Printer General Block Diagram | 25 |
Paper (Media) Axis Drive | 27 |
The Carrier Axis Drive | 28 |
Main Printed Circuit Board (MPCB) | 29 |
Microprocessor | 30 |
Gate Array | 30 |
Memory Circuits | 31 |
Stepper Motor Controller | 33 |
Servo Motor Controller | 34 |
Interface Circuits: Serial & Parallel | 36 |
Carrier Assembly Circuits | 37 |
Power Supply | 38 |
System Grounding | 38 |
Front Key Controls | 40 |
Chapter 3 Maintenance | 43 |
Introduction | 43 |
Scheduled Maintenance | 43 |
Cleaning Procedures | 44 |
External Cleaning | 44 |
Slide Shaft Cleaning | 44 |
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