Oki OKIFAX 5950 Series Maintenance Manual page 501

Note: The toner supply roller and the developing roller are supplied with bias voltages
required during the developing process as shown below. -500 VDC is supplied to
the toner supply roller, -265 VDC to the developing roller.
OF5750/5950 Series January 2001
Developing roller
Base
EP drum
B - 9
DESCRIPTION OF
PRINT OPERATIONS
Connected and bias voltage
supplied when the cover is
closed.
Toner supply roller