Canon CP660 Service Manual page 332

CHAPTER 10 TROUBLESHOOTING
5 The transparency sensor 1/2 is faulty.
Cause Step
Transparency 1
sensor 1/2
(PS1801/PS18
02)
+5 V supply 2
line
Transparency 3
sensor 1/2
(PS1801/PS18
02)
6 The face-down tray full sensor is faulty.
Cause Step
Lever (face- 1
down tray full
sensor PS10)
Face-down tray 2
full sensor
(PS10)
10-50
COPYRIGHT © 1999 CANON INC.
Download free service manual at http://printer1.blogspot.com
Checks
Is the detecting window of the trans-
parency sensor 1/2
(PS1801/PS1802) soiled?
Are the connectors J1801 and
J1802 of the transparency sensor
1/2, connector J214 on the DC con-
troller PCB, and relay connector J17
connected securely?
Replace the transparency sensor
1/2 (PS1801/PS1802). Is the prob-
lem corrected?
Checks
Is the lever of the face-down tray full
sensor (PS10) damaged/deformed?
Is the lever displaced?
Replace the face-down tray full sen-
sor (PS10). Is the problem
corrected?
Yes/No
YES
NO
YES
NO
Yes/No
YES
YES
NO
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Clean the detecting
window.
Connect the connec-
tors securely.
End.
Replace the DC con-
troller PCB.
Action
Replace or reposition
the lever.
End.
Replace the DC con-
troller PCB.