10 February 2005
BOARD STRUCTURE
6-11
D
etailed
D
escr
iptions
1. Controller (Main Board)
Controls the memory and the fax/scanner/printer options.
2. BICU (Base Engine and Image Control Unit)
This is the scanner and engine control board. It controls the following functions:
•
Engine sequence
•
Timing control for peripherals
•
Image processing control and video control
•
Operation control
•
Drive control for the sensors, motors, and solenoids of the printer and
scanner
•
High voltage supply board control
•
Fusing control
3. IOB (Input/Output Board)
Controls the sensors, motors, clutches, and solenoids of the main unit.
4. Scanner IOB (Scanner Input/Output Board)
Handles the following functions.
•
Serial interfaces with ARDF and operation panel
•
Scanner motor control
5. SBU (Sensor Board Unit)
The SBU converts the analog signals from the CCD into digital signals.
