±
2. STRUCTURE OF THE CONTROL SYSTEM
..............................................
IV-27
2.1 Basic Structure
.................................................................................................................
IV-27
2.2 Control System
................................................................................................................
IV-34
2.3 Main PCB (Video Controller PCB)
...................................................................................
IV-42
2.4 Power Supply Unit
...........................................................................................................
IV-56
2.5 High Voltage Power Supply Unit
......................................................................................
IV-60
2.6 Wiring Diagram
................................................................................................................
IV-63
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1. PANEL LAYOUT
............................................................................................
V-1
2. VIDEO CONTROLLER MODE
.......................................................................
V-2
2.1 Configuration of Operational Mode
.....................................................................................
V-2
2.2 Line Test Mode
...................................................................................................................
V-3
2.3 DRAM Test Mode
...............................................................................................................
V-7
2.4 Test Print Mode
...................................................................................................................
V-8
2.5 NVRAM Reset Mode
...........................................................................................................
V-8
3. ENGINE CONTROLLER MODE
....................................................................
V-9
3.1 Configuration of Operational Mode
.....................................................................................
V-9
3.2 Operation of Normal Mode
................................................................................................
V-11
3.3 Service Mode
....................................................................................................................
V-18
3.4 Adjustment Work Procedures
...........................................................................................
V-41
CHAPTER VI PERIODIC MAINTENANCE
.....................................
VI-1
1. GENERAL
.....................................................................................................
VI-1
1.1 Handling Precautions
.........................................................................................................
VI-1
1.2 Periodic Maintenance Cleaning
.........................................................................................
VI-4
1.3 Periodic Maintenance Parts and Maintenance Cycle
......................................................
VI-17
2. PERIODIC MAINTENANCE PROCEDURES
..............................................
VI-20
2.1 OPC Belt Cartridge Replacement
....................................................................................
VI-20
2.2 Fusing Unit Replacement
.................................................................................................
VI-23
2.3 Transfer Roller 2 Replacement
........................................................................................
VI-27
2.4 Paper Discharger Unit Replacement
...............................................................................
VI-30
2.5 Drum Cleaner 2 Replacement
.........................................................................................
VI-32
2.6 Ozone Filter Replacement
...............................................................................................
VI-35
2.7 Paper Pick-up Roller and Separator Pad 2 Replacement
................................................
VI-36
2.8 Transfer Drum 2 Replacement
.........................................................................................
VI-37