Detecting Jams - Canon iR4570 Series Service Manual

Chapter 8

8.3 Detecting Jams

8.3.1 Delay Jams
8.3.1.1 Delay Jam Outside the Cassette Pickup Assembly
iR2270 / iR2870 / iR3570 / iR4570
A delay jam outside the cassette pickup assembly is identified as follows:
The length of time it takes for paper to move from the sensor N-1 to the delay jam sensor N is kept under control; a
delay jam is identified if the delay jam sensor does not go on within a specific length of time after the sensor N has
gone on.
Sensor N-1
Jam check
Sensor N
Sensor
Registration sensor (PS9)
Fixing delivery sensor (PS13)
No. 1 delivery sensor (PS14)
Duplex feed sensor (PS17)
8.3.1.2 Delay Jam in the Cassette Pickup Assembly
iR2270 / iR2870 / iR3570 / iR4570
The leading edge of paper does not reach the sensor after the cassette 1/2 pickup motor has started to rotate.
8-30
Start key ON
or PRINT set
[1]
INTR / PRINT
[1]
Normal
[1]:specific length of feed in time
F-8-26
T-8-3
Error
0007-2663
0007-2664