Canon imageRUNNER ADVANCE C350 series Service Manual page 65

2
Technical Explanation > Original Exposure and Feed System > Control of ADF > Feed Control
● At 2-sided stream reading
The drive (clockwise rotation) of the ADF Motor (M02) rotates the Feed Roller, and feeds
an original. When the Document End Sensor (PS02) is turned ON, the ADF Motor (M02) is
stopped to stop the original.
After a specified period of time, the drive (reverse rotation) of the ADF Motor (M02) rotates
the Feed Roller, and feeds the original to the reading position. At this time, the Pickup Roller
is lifted up.
Clockwise Rotation
Document End Sensor
(PS02)
Counterclockwise Rotation
Feed Roller
Reading standby position
NOTE:
Preparation of the Main Controller may not be completed (the memory may not have
been secured) when an original passes the Document End Sensor (PS02). When it is
not completed, the original is stopped before the reading position. When the preparation
of both the memory allocation and ascend of the Pickup Roller is completed, the original
is fed to the reading position.
2 Technical Explanation > Original Exposure and Feed System > Control of ADF > Feed Control
M02
M02
Pickup Roller Unit
F-2-29
Feed Roller
Original End Sensor
(PS02)
Position where
the original
is detected
Decelerated
Stopped Accelerated
Constant Speed
Decelerated
Waiting for stability
Reading position
2-22
F-2-30
2-22