Canon SADDLE FINISHER K3 Service Manual page 389

CHAPTER 5 TROUBLESHOOTING
3.1.12 E537 (front aligning plate motor M4)
-
1) Does the front aligning plate operate in keeping with alignment op-
NO:
YES: Go to step 4.
Finisher controller PCB, Power supply
3) Is the voltage at J104A-1 (+) of the finisher controller PCB 24 V?
NO:
Wiring
3) Is the wiring from J104A-1 to -5 of the finisher controller PCB and
NO:
YES: Replace the front aligning plate motor.
Front aligning plate home position sensor (PI7), Finisher controller PCB
4) Is the voltage between J104B-3 (+) and J104B-2 (-) on the finisher
YES: Replace the sensor.
NO:
3.1.13 E540 (tray A lifter motor M13)
36 VDC
1) Is 36 VDC present at J113-8, -9, -10 of the finisher controller PCB?
NO:
Tray lifter mechanism
2) Is there a fault or an obstacle to the tray lifter mechanism?
YES: Remove the fault or the obstacle.
Tray A lifter motor (M13)
3) Does the tray lifter motor rotate at the correct timing?
NO:
Tray A lock sensor (PI19)
4) Is the tray A lock sensor normal?
NO:
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COPYRIGHT© 2001 CANON INC.
eration?
Go to step 2.
Check the supply of 24 VU to the finisher controller PCB. If good,
replace the finisher controller PCB. If not, correct the power supply
system.
to the rear aligning plate motor normal?
Correct the wiring.
controller PCB 5 V?
Replace the finisher controller PCB.
Check the supply route of 36 VDC; correct any fault, if found.
Check the tray safety switch (front, rear; MSW6, 7) and the tray
approach switch (MSW5).
Replace the motor and the tray lifter motor drive PCB.
Replace the sensor.
2000 2000 2000 2000 CANON SADDLE FINISHER K3/K4 REV.0 MAR. 2001