BOARD STRUCTURE
A265/A267 1-18 SM
1.8.2 DESCRIPTION
1. BICU (Base Engine and Image Control Unit)
The main board controls the following functions:
•
Engine sequence
•
Scanner, laser printer engine
•
Timing control for peripherals
•
Image processing, video control
•
Operation control
•
Various application boards (fax, printer, scanner)
•
Machine control, system control
2. IOB (I/O Board)
The IOB handles the following functions:
•
Drive control for the sensors, motors, and solenoids of the printer and
scanner
•
High voltage control board control
•
Serial interfaces with peripherals
•
Fusing control
3. SBU (Sensor Board Unit)
The SBU deals with the analog signals from the CCD and converts them into digital
signals.
4. Mother Board (Option)
This board interfaces the BICU with the printer controller and/or the scanner
controller. The mother board is part of the expansion box option.
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