Mechanism - Ricoh MP 305 Plus Field Service Manual

7. Detailed Descriptions

Mechanism

Drum Drive Mechanism
The main motor [C] drives the drum through gear [B] and the drum drive shaft [A]. If the motor speed
exceeds the regulation speed, the motor stops for safety.
Drum Charge
Charging the drum is performed by the charge roller [A].
The HVPS applies the bias to the charge roller via a receptacle and electrode terminal. The charge roller
is always in contact with the surface of the drum with the pressure spring and applies a charge bias.
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