Paper Separating Mechanism; Feed/Separator Roll Release Mechanism - Minolta CF910 Service Manual

1154SBM130501A

(1) Paper Separating Mechanism

• A torque limiter is used for paper separation.
• Using the friction coefficient between the Feed Roll and Separator Roll, the Separator
Roll is stopped so that only the 1st sheet of paper is taken up and fed into the copier.
<Normal Feeding>
Driven by Feed Roll
<At the Time of Double Feed>
Stationary
1154SBM130502A

(2) Feed/Separator Roll Release Mechanism

• A mechanism is provided to release the pressure between the Feed Roll and Separator
Roll so that any sheets of paper will not remain caught inside the copier when the drawer
is slid out of the copier.
• The mechanism consists of the Pressure Release Spacer fitted to the Separator Roll
Assy and the Pressure Release Rail of the drawer. When the drawer is slid out, the
Pressure Release Rail pushes down the Pressure Release Spacer. This results in the
Separator Roll being released from the Feed Roll.
Separator
Roll Assy
Pressure
Spring
= When Drawer is in Position =
Feed Roll
Paper
Separator Roll
1076M085
Feed Roll
1st Sheet of Paper
2nd Sheet of Paper
Separator Roll
1076M086
Feed Roll
Pressure
Release Rail
Pressure Release
Spacer
M-75
• Since the friction coefficient on the
top side of the paper is equal to that
on the underside of the paper, the
Separator Roll is turned by the
Feed Roll. This feeds the paper
into the Vertical Transport Section.
• The friction coefficient between the
sheets of paper is smaller than the
torque limiter value of the Separator
Roll. This stops the Separator Roll,
blocking the second and subse-
quent sheets of paper at the area of
contact between the Feed and Sep-
arator Rolls.
= When Drawer is Slid out =
Clearance:
Approx. 2 mm
1154M038AA