User manual

95.08.23.11.30
Color LaserWriter 12/600 PS Basics & Theory 1–107
Discharge
Roller
The discharge roller is normally pushed up by the discharge roller press
cam so that it is separated from the transfer roller. After the paper is
separated from the transfer drum, the discharge roller press solenoid
(SL9) is turned on to release the cam and thus press the discharge roller
against the transfer drum. After the discharge, SL9 is turned off to
actuate the cam to push the discharge roller up, and then separate it
from the transfer drum.
The discharge roller is not driven by any motor, but rotates along with
the transfer drum. The discharge voltage corresponding to one cycle of
the transfer drum is applied to the discharge roller to neutralize the elec-
tric charge remaining on the transfer drum surface.
Discharge Roller Pressed
Discharge Roller Separated
Transfer Drum
Transfer Drum
Discharge Roller
Discharge Roller
Discharge Roller Press Cam
Discharge Roller Press Cam