Xerox WORKCENTRE 3210

WorkCentre 3210/3220 Multifunction Printer Service Manual 2-19
Theory of Operation
Main Controller Board
The Main Controller Board consists of the CPU and printer control functions.
The CPU functions as the bus control, I/O handling, drivers, and PC interface.
The Main Controller Board sends the current image video data to the Laser
Unit and manages the electrophotographic printing process. Circuits on the
Main Controller Board drive the Main Motor (paper feed), Clutch, Pre-Transfer
Lamp, Heat Lamp, and Fan.
The signals from the Paper Feed Sensor and Paper Empty Sensor are input
to the Main Controller Board.
Outbin Tray Full Sensor
Paper Width Sensor
Power Supply
(SMPS)
Main Fan
Developer
Unit CRUM
Paper Empty
Sensor/Duplex
Registration
Sensor/Paper
Feed Sensor
HVPS
DC Unit Fan/Interlock Switch
Modem
Fuser
Laser Unit CISMDi
rect USB Interface
Main Motor/Registration Clutch/Pick-Up Solenoid
Power Supply Fan
Control Panel
Scanner Motor
ADF Control Board
USB Device
Interface
Network IC
Optional Tray
Serial Flash
EEPROM
DDR2 SODIMM
CHORUS3
NOR Flash
USB 2.0 IC
DDR2 SDRAM
Ethernet
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