COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
CHAPTER 6 TROUBLESHOOTING
6-136
4.1.82 The lifter fails to move up (pickup from cassette)
Cassette size detecting switch
1) Is the size of the cassette indicated on the message display?
NO: Check the cassette size detecting switch.
Latch assembly (cassette)
2) Is the operation for the open button assembly of the cassette nor-
mal?
NO: Mount the button assembly properly.
Spring lever
3) Push up the pickup roller releasing lever with your finger. Does the
pickup roller move down?
NO: Remove the pickup assembly, and check the spring and the lever.
Cassette open/closed sensor
4) When the cassette is inserted, is the voltage at the following connec-
tors on the DC controller PCB about 5 V?
Cassette 3 (PS40): J515-B5
Cassette 4 (PS45): J517-B5
NO: Check the sensor flag and the wiring; if normal, replace the sensor.
Lifter motor, DC controller PCB
5) Turn on the main power switch and the control panel power switch.
Set the meter range to 30 VDC. Connect the
−−
−−
− meter probe to GND,
and connect the + meter probe to the following jacks. When the cas-
sette is inserted, does the voltage change from about 0 to 24 V?
Cassette 3 (M16): J516-A4
Cassette 4 (M17): J516-B1
YES: Remove the lifter motor assembly, and check the gar; if normal,
replace the motor.
NO: Replace the DC controller PCB.
To Next Page
Loading...
Need help?
General
