5-57
Troubleshooting
(1) Corona charger is dirty.
(2) Corona charger spring is defective.
(3) Screw(s) on the ground terminal of HVPS
or HVPS bracket is loose.
(4) HVPS connector is shorted or broken.
(5) HVPS is defective.
(6) LVPS connector is shorted or broken.
(7) LVPS is defective.
(8) (FP-D250/D350)
CPU PCB connector (
CN10
) is shorted or
broken.
(FP-D450/D600)
CPU PCB connector (
CN10
) is shorted or
broken.
(9) CPU is defective.
(1) Main motor connector is shorted or broken.
(2) Main motor is defective.
(3) LVPS connector is shorted or broken.
(4) LVPS is defective.
(5) (FP-D250/D350)
CPU PCB connector (
CN5
) is shorted or
broken.
(FP-D450/D600)
CPU PCB connector (
CN5
) is shorted or
broken.
(6) CPU is defective.
(7) Drive mechanism is defective.
(1) Fan motor connector is shorted or broken.
(2) Fan motor is defective.
(3) LVPS connector is shorted or broken.
(4) LVPS is defective.
(5) (FP-D250/D350)
CPU PCB connector (
CN6
) is shorted or
broken.
(FP-D450/D600)
CPU PCB connector (
CN6
) is shorted or
broken.
(6) CPU is defective.
(1) Fan motor connector is shorted or broken.
(2) Fan motor is defective.
(3) LVPS connector si shorted or broken.
(4) LVPS is defective.
(5) (FP-D250/D350)
CPU PCB connector (
CN6
) is shorted or
broken.
(FP-D450/D600)
CPU PCB connector (
CN6
) is shorted or
broken.
(6) CPU is defective.
High voltage power supply leak
(1)
High voltage power supply leak
(2)
High voltage power supply leak
(3)
Main motor rotation
Dust collection fan motor rotation
Developer fan motor rotation
Code No.
Function
Check points
E3-10
E3-11
E3-12
E3-20
E3-21
E3-22
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