Canon iR3570 Series, Service Manual

Page: 305 / 722

Chapter 8
8-19
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
0007-2663
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.
F-8-26
T-8-3
8.3.1.2 Delay Jam in the Cassette Pickup Assembly
0007-2664
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.
F-8-27
T-8-4
8.3.2 Stationary Jams
8.3.2.1 Common Stationary Jam
0007-2665
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.
Sensor
Registration sensor (PS9)
Fixing delivery sensor (PS13)
No. 1 delivery sensor (PS14)
Duplex feed sensor (PS17)
Source of paper Motor Sensor
Cassette 1 cassette 1 pickup motor cassette 1 retry sensor (PS10)
Cassette 2 cassette 2 pickup motor cassette 2 retry sensor (PS11)
Jam check
Sensor N
Sensor N-1
Normal
[1]:specific length of feed in time
Error
Start key ON
or PRINT set
[1] [1]
INTR / PRINT
Jam check
Sensor N
Pickup motor
Normal
[1]:specific length of feed in time
Error
Start key ON
or PRINT set
[1] [1]
INTR / PRINT