Drum Charge - Ricoh D109 Service Training

S-C4L Training

Drum Charge

Drum charge roller Spring Wire High voltage
supply board
Slide 37
Drum Charge
The OPC drum is charged via a contact charge roller. The drum charge roller
stays in contact with the drum. This gives a charge of –900 V on the drum
surface.
The high voltage supply board gives a negative charge to the charge roller with a
wire and spring.
The default base charge is –1650V. You can adjust this with SP 2001 1.
37