Separation Corona Unit - Ricoh B286 Service Manual

Separation Corona Unit

Applies approx. ac 280 μA and dc –25 μA to pull the paper off the drum.
Separation method: Wide angle AC Scorotron charger
Backup separation: Pick-off pawl, pick-off pawl solenoid
6.8.2 PICK-OFF PAWL OPERATION
The pick-off pawls separate paper from the drum if the separation corona does not
separate the paper fully.
The pick-off pawl solenoid [A] moves the pick-off pawls [B] until they touch the drum.
When the leading edge of the paper on the drum goes into the separation corona unit, the
solenoid switches on. About 198 mm (7.8") of the paper touches the drum. The pick-off
pawl shaft starts to turn, and the pawls on the shaft are held against the drum by a spring.
SM
Image Transfer and Separation
6-65 B286/B289