COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON SmartBase PC1200s/iR1200s REV. 0 DEC. 2001
7-45
CHAPTER 7 TROUBLESHOOTING
4.2.9 The message “REC. PAPER JAM” fails to go OFF.
General conditions
1) Check to find out which of the following sensors is faulty. (See 6.1
of Chapter 7.)
•
cassette paper sensor (PS103)
•
manual feed tray paper sensor (PS4)
•
delivery sensor (PS3)
•
paper leading edge sensor (PS102)
Sensor flag
2) Is the flag of the sensor identified in step 1) damaged or displaced?
YES: Correct it. If damaged, replace it.
Connector
3) Is the connection between the connector for the sensor identified in
step 1) and the image processor PCB, DC controller PCB, and
power supply PCB normal?
•
In the case of the manual feed tray paper sensor (PS4), J303 and
J308 of the image processor PCB and J204 of the DC controller
PCB.
•
In the case of the delivery sensor (PS3), J106 and J109 of the power
supply PCB and J202 of the DC controller PCB.
NO:
Correct the connection.
Sensor
4) If the faulty sensor is any of the following, try replacing it. Is the
problem corrected?
•
manual feed tray paper sensor (PS4)
•
delivery sensor (PS3)
YES: End.
DC controller PCB, Image processor PCB, Power supply PCB
5) 1. If the cassette paper sensor (PS103) or the paper leading edge
sensor (PS102) is faulty, try replacing the DC controller PCB. Is
the problem corrected?
2. If the manual feed tray paper sensor (PS4) is faulty, try replacing
the image processor PCB. Is the problem corrected?
3. If the delivery sensor (PS3) is faulty, try replacing the power sup-
ply PCB. Is the problem corrected?
YES: End.
NO:
If the manual feed tray paper sensor (PS4) or the delivery sensor
(PS3) is faulty, replace the DC controller PCB.
