Engine H/W Specifications; Ml-4550 (Pcl) Main Board - Samsung ML-4550 Service Manual

Summary of Product

3.3 Engine H/W Specifications

3.3.1 ML-4550 (PCL) Main Board

The Engine Board and the Controller Board are in one united board, and it is consisted of CPU part and print part in func-
tional aspect. The CPU is functioned as the bus control, O/O handling, drivers, and PC interface. The main board sends
the Current Image by Video data to the LSU and manages the conduct of Electrophotography for printing. It is consisted
of the circuits of the motor (paper feed, pass) driving, clutch driving, 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.
Service Manual
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