Ricoh A-P4 - Charge Roller Voltage Correction

Drum Charge
Overview of Drum Charge
This machine uses a drum charge roller to charge the drum.
The drum charge roller [A] contacts the surface of the drum [B] to give it a negative charge. The high voltage
supply board [C] supplies a negative dc voltage to the drum charge roller through the charge roller terminal
[D], bias plate [E], and the rear roller bushing [F] to give the drum surface a negative charge of –800 V.
Drum Charge
319
6