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CONTENTS
1. OVERVIEW...........................................................................................................III-1
2. MECHANISMS......................................................................................................III-2
2.1 Scanner Mechanism.....................................................................................III-3
2.1.1 Document feeding and ejecting mechanism..........................................III-3
2.1.2 Scanner................................................................................................III-3
2.2 Laser Printing Mechanism.............................................................................III-4
2.2.1 Paper pulling-in, registration, feeding, and ejecting mechanism.............III-4
2.2.2 Print process mechanism......................................................................III-6
(1)Charging process..........................................................................III-7
(2)Exposing process.........................................................................III-7
(3)Developing process......................................................................III-8
(4)Transferring process.....................................................................III-8
(5)Erasing process............................................................................III-8
2.2.3 Heat-fixing mechanism...........................................................................III-9
2.3 Sensors and Actuators..................................................................................III-10
3. CONTROL ELECTRONICS..................................................................................
III-12
3.1 Configuration................................................................................................III-12
3.2 Main PCB.....................................................................................................III-13
3.3 NCU PCB.....................................................................................................III-15
3.4 Control Panel PCB........................................................................................III-16
3.5 Power Supply PCB.......................................................................................III-17
[ 1 ] Low-voltage power supply PCB....................................................III-17
[ 2 ] High-voltage power supply PCB...................................................III-18