Konica Minolta bizhub 211, Руководство по обслуживанию

Страница: 149 / 182

2. Paper Feed Unit (PF-502) Theory of Operation Ver. 1.0 Apr. 2007
8
PF-502
Composition/Operation
2.3.6 Paper Separating Mechanism
• A loop is formed in the paper between the Separator Fingers and the Feed Roller. The
turning force of the Feed Roller overcomes the block of the Separator Fingers, causing
the top sheet of paper to ride over the fingers and be fed out of the tray into the copier.
• When there are only two sheets of left in the tray and if the friction force of the Paper Lift-
ing Plate is low, the bottom sheet of paper is taken up and fed into the copier with the top
sheet of paper. To prevent this situation from occurring, there is a Friction Plate provided
on top of the Paper Lifting Plate.
• Before the Feed Roller contacts the paper, the Feed Roller holds the paper down so that
the paper remains stationary before its being taken up by the Feed Roller.
2.3.7 Paper Feed Control
• The operation of the Paper feed solenoid is controlled by the signal output from PJ3A-1
and 2 of the Control Board.
<For the 2nd Tray>
4686C509AA
Feed Roller
Paper
Separator Finger
Paper Lifting Plate
Friction Plate
Roll