Main Circuit Boards - Ricoh M109 Service Training

EGB (Engine Board): Controls the engine, the controller
interface, image processing, color registration adjustment
(MUSIC), input/output, interfaces with the optional units,
and the operation panel.
CTL (GW+ Controller): Controls the interface between the
operation panel and EGB, and applications. The controller
connects to the EGB through the PCI Bus
PSU: This unit supplies DC voltage.
HVP (High Voltage Power supply): This unit supplies high
voltages.
Slide 43
No additional notes

Main Circuit Boards

There are two boards. A small separate board provides
power to the discharge plate, which separates paper from
the transfer belt and paper transfer roller.
43
Ti-P1 Training