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Croma24 Service Manual
List of Illustrations
Figure Page
Chapter 1 General Description
Chapter 2 Theory of Operation
2-1. General Block Diagram ...................................................................................26
2-2. Paper (Media) Axis Drive.................................................................................27
2-3. Carrier Axis Drive ............................................................................................28
2-4. Main Printed Circuit Board ............................................................................... 29
2-5. Gate Array .......................................................................................................30
2-6. Stepper Motor Controller .................................................................................33
2-7. Servo Motor Controller ....................................................................................34
2-8. Quadrature Signal Generation .........................................................................35
2-9. Interface Circuits .............................................................................................36
2-10. Carrier Assembly Circuits ................................................................................37
2-11. Croma24 System Ground Network (Left Side) ................................................39
2-12. Croma24 System Ground Network (Right Side) ..............................................40
2-13. Front Key Controls...........................................................................................40
Chapter 3 Maintenance
3-1. Encoder Strip Cleaning....................................................................................46
3-2. Cartridge Dimple Region .................................................................................47
3-3. Flex Cable Contacts ........................................................................................48
3-4. MPCB Connection Locations...........................................................................50
3-5. Carrier PCB Connection Locations ..................................................................51
3-6. Ribbon Connector Locking Mechanism ...........................................................51
3-7. Servo Motor .....................................................................................................52
3-8. Stepper Motor..................................................................................................53
3-9. Examples of Banding ......................................................................................54
3-10. Color Calibration ..............................................................................................55
3-11. Deadband Fast/Slow .......................................................................................56
3-12. Upper Roller Support Description ....................................................................57
3-13. Upper Roller Mounting..................................................................................... 59
3-14. Gap of Pinch Roller .........................................................................................59
3-15. Upper Roller Adjustment .................................................................................60
3-16. Carrier Head Height Tolerance ........................................................................ 61