1-6 Firmware
1-6-1 Updating the firmware on the main PWB................................................................................................1-6-1
2-1 Mechanical construction
2-1-1 Paper feeding/conveying section............................................................................................................2-1-1
(1) Paper feed section ............................................................................................................................2-1-1
2-1-2 Drum section...........................................................................................................................................2-1-3
(1) Drum unit...........................................................................................................................................2-1-3
(2) Main charger unit...............................................................................................................................2-1-4
2-1-3 Expose section........................................................................................................................................2-1-5
(1) Laser scanner unit.............................................................................................................................2-1-5
2-1-4 Developing section..................................................................................................................................2-1-7
(1) Developer unit...................................................................................................................................2-1-7
2-1-5 Transfer section ......................................................................................................................................2-1-9
2-1-6 Cleaning section ...................................................................................................................................2-1-10
2-1-7 Fuser section ........................................................................................................................................2-1-11
(1) Fuser unit ........................................................................................................................................2-1-11
2-1-8 Paper exit section .................................................................................................................................2-1-13
(1) Paper exit section............................................................................................................................2-1-13
2-1-9 Scanner section ....................................................................................................................................2-1-15
(1) Scanner unit....................................................................................................................................2-1-15
(2) Optical module unit..........................................................................................................................2-1-16
2-1-10 Document processor (DP) section........................................................................................................2-1-17
(1) Document processor (DP)...............................................................................................................2-1-17
2-2 Electrical Parts Layout
2-2-1 Electrical parts layout..............................................................................................................................2-2-1
(1) Electrical parts layout........................................................................................................................2-2-1
2-3 Operation of the PWBs
2-3-1 Power source PWB.................................................................................................................................2-3-1
2-3-2 Engine/high voltage PWB .......................................................................................................................2-3-3
2-3-3 Main PWB...............................................................................................................................................2-3-7
2-4 Appendixes
(1) Wiring diagram..................................................................................................................................2-4-1
(2) Repetitive defects gauge...................................................................................................................2-4-2
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