87
PE-MF3/PE-P2 Training
Slide 87
Document Feeder
The scanner motor controls the rollers in the document
feeder.
If the feed sensor does not detect paper soon after the start
of document feed, a jam is detected.
Separation Roller
Pick-up Roller
Exit Roller
Feed Sensor
Feed Roller
Original Set Sensor
DF Exposure Glass
The original feed path is shown in red.
The separation roller and pick-up roller are included in an assembly that is called
the ADF Feed Unit.
After the original set sensor has detected an original and the machine has got a
copying or scanning job, the ADF motor rotates to pick up and feed a sheet of
the original to the feed sensor. If the feed sensor does not detect paper after this
sequence, the machine determines an original jam has occurred.
The ADF motor stops when the feed sensor detects paper, and then starts to
rotate again. After scanning, the ADF motor stops again, and then starts to rotate
to feed out the paper.