Detecting Jams; Delay Jams; Delay Jam Outside The Cassette Pickup Assembly; Delay Jam In The Cassette Pickup Assembly - Canon iR3570 Service Manual

1. Increase in Speed for Pickup
The speed is 1.5 times as high as the process speed (in the cassette of manual feed, decelerates to about 0.6).
2. Increase in Speed for Reversal
The speed is 2 times as high as the process speed.

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.
Pickup motor
Jam check
Sensor N

8.3.2 Stationary Jams

8.3.2.1 Common Stationary Jam

iR2270 / iR2870 / iR3570 / iR4570 / / / / / iR2230 / / iR3530 /
The sensor N does not go off within a specific length of time after the sensor has gone on.
Start key ON
or PRINT set
[1]
Start key ON
or PRINT set
[1]
Source of paper
Cassette 1 cassette 1 pickup motor
Cassette 2 cassette 2 pickup motor
INTR / PRINT
[1]
Normal
[1]:specific length of feed in time
F-8-26
T-8-3
INTR / PRINT
[1]
Normal
[1]:specific length of feed in time
F-8-27
T-8-4
Motor
cassette 1 retry sensor (PS10)
cassette 2 retry sensor (PS11)
Error
Error
Sensor
Chapter 8
0007-2663
0007-2664
0007-2665
8-19