2.2.4 Engine H/W Specications
2.2.4.1 Main PBA
The Engine and the Printer Controller function are housed into one Main Board called Main PBA. The CPU
is functioned as the bus control, I/O handling, drivers, and PC interface. The main board sends the Current
Image of Video data to the LSU and manages the conduct of manages the electrophotography for printing.
The CPU on Main PBA manages the circuits for the motors: paper feed, paper path, clutches, pre- transfer
lamp, current control to driver components, and fan driving.
The signals from the paper feed jam sensor and paper empty sensor are directly inputted to the main board.
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