Canon imageRUNNER ADVANCE 8105 Series Service Manual page 509

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Parts Replacement and Clearning > Pickup/Feed System > Cleaning the Pickup and Fixing Feed Assembly
19) Open the Duplex Path.
20) Clean paper dust on the feed area [A] of the Duplex Path (Upper/Lower) with lint-free
paper.
21) Clean a whole circumference of 10 Rollers by manually rotating them with lint-free paper
moistened with alcohol.
Note:
When rotating the Roller by hand, do not touch the surface of the Roller. Be sure to hold
the side of the Roller to rotate manually.
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Parts Replacement and Clearning > Pickup/Feed System > Cleaning the Pickup and Fixing Feed Assembly
22) Clean paper dust on the Duplex Outlet Sensor (PS64), Duplex Merge Sensor (PS67), and
Duplex Left Sensor (PS66) with a blower.
23) Clean a whole circumference of 5 Rollers by manually rotating them with lint-free paper
F-4-419
moistened with alcohol.
F-4-420
PS66 PS67 PS64
4-213
F-4-421
F-4-422
4-213