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SUMMARY OF PRODUCT
Samsung Electronics
Service Manual
4.3 Main PBA(SPL Model)
The Engine Board and the Controller Board are united on one board, and it is consists of a CPU part and
print part in a functional aspect. The CPU functions as the bus controller, I/O handling, drivers, and PC
inter-face. The main board sends the Current Image dlml Video data to the LSU and manages the
Electrophotography for printing. It consists of the circuits on the drive motor (paper feed, pass) , clutch dri-
ving, pre-transfer lamp driving, current driving, and fan driving.
The signals from the paper feed jam sensor and paper empty sensor are directly inputted to the main
board.
Including scan image processing, CCD drive signal creation, scan motor drive signal creation.
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