Ricoh BR-C1a Basic Service Training page 164

 IOB (Input/Output Board). Contains the I/O ASIC and
controls all the mechatronics in the machine.
 BCU (Base Control Unit). Holds the engine CPU and
firmware, controls the machine engine.
 IPU (Imaging Processing Unit). Contains large-scale
integrated circuits that process the image data.
 Controller Board. GW+ controller.
 TDRB (Transfer Drive Board). Controls ITB unit motors and
circuits.
 RYB (Relay Board). Controls power relay to DC electrical
components and controls motors and circuits of the paper
bank.
 FU2: Fusing Unit. SC590-04
 FU3: Main machine paper feed, drawer unit DDRB. SC
 FU4: Image transfer unit, exit unit. SC590-02
Slide 164
No additional notes
Summary of Board Functions - 1
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BR-C1 Training