Canon iR2000 Series, Service Manual

Page: 196 / 738

COPYRIGHT© 2002 CANON INC. 2000 CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002
6-14
CHAPTER 6 PICKUP/FEDING SYSTEM
4.2 Sequence of Jam Detection
4.2.1 Delay Jam
a. Cassette Pickup Assembly
The machine will identify the following condition as a cassette pickup assembly delay
jam: after the cassette pickup solenoid goes ON, the leading edge of paper does not reach
the retry sensor within a specific period of time.
Pickup assembly Motor Sensor
Cassette Cassette pickup solenoid (SL151) Retry sensor (PS152)
T05-402-01
b. Other Delay Jams
A check is made for jams other than a cassette pickup assembly delay jam as follows:
The machine will identify the following condition as a delay jam: the time it takes for
paper to move from the sensor N-1 to the delay jam sensor N in question is controlled in
relation to the number of clock pulses from the main motor; the delay jam sensor N in
question does not go ON within a specific period of time after the sensor N-1 goes ON.
F06-402-01
Start key ON or
PRINT setting accepted
INTR / PRINT
Sensor N-1
Jam check
Sensor N
Normal
Error
T T
( T =
feed period
)