Media Is Not Fed; Suction Fan Does Not Rotate - Canon BJ-W3000 Service Manual

CHAPTER 5. TROUBLESHOOTING

28. Media is not fed

Problem/Unit
Loose set screw
Paper feed motor (M1)
Engine controller

29. Suction fan does not rotate

Problem/Unit
PE sensor (PS6)
Suction fan (FM1)
Engine controller
5–42
Step Check item
1 Are the set screws fixing the paper
feed roller tightened firmly?
2 Turn OFF the power switch and
unplug the power cord. Remove
connector J203 on the engine
controller. Set the tester range to
x10.
Are the resistance values normal
when the tester leads are connected
to the harness terminals on the motor
side as shown in the table below?
+ -
J203-3 J203-4
J203-5 J203-6
J203-1 J203-3
J203-1 J203-4
J203-2 J203-5
J203-2 J203-6
Step Check item
1 Does the cooling fan (FM2) rotate
when media is loaded?
2 Is the trouble corrected by replac-
ing the PE sensor (PS6)?
Is the trouble corrected by replac-
3
ing the suction fan?
Result
NO
NO
YES
Resistance value
Approx. 6.8Ω
Approx. 6.8Ω
Approx. 3.4Ω
Approx. 3.4Ω
Approx. 3.4Ω
Approx. 3.4Ω
Result
YES
YES
YES
NO
Remedy
Tighten the paper feed roller with
set screws.
Replace the paper feed motor.
Check the wiring from the motor to
the engine controller. If normal,
replace the engine controller.
Remedy
Go to step 3.
Completed.
Completed.
Check the wiring from the fan to
the engine controller. If correct,
replace the engine controller.