E064 (The High-Voltage Output Is Faulty.) - Canon GP215 Service Handbook

11

E064 (The high-voltage output is faulty.)

Cause Step
Wire (biting) 1
Composite 2
power supply
PCB
Transfer charg- 3
ing
assembly/trans-
fer charging
roller
Primary charg- 4
ing roller
Developing 5
assembly
High-voltage 6
cable
Checks
Turn OFF/ON the power switch,
and set the copy count to '1'. Is
'E064' indicated after
copying?
Set the count to '1' once again,
and make a copy. Is 'E064'
indicated after copying?
Is the contact of the transfer
charging assembly/transfer
charging roller faulty?
Remove the drum unit, and
check the primary charging
roller. Is the primary charging
roller or the contact faulty?
Remove the developing assem-
bly, and check the developing
cylinder and the contact. Is the
developing cylinder or the con-
tact faulty?
Are there scratches or tears in
the high-voltage cable (primary
charging, transfer charging,
and developing)?
TROUBLESHOOTING MALFUNCTIONS
Yes/No
YES Check the harness of the DC
controller PCB and the com-
posite power supply PCB.
YES Perform steps 3 through 6;
then, replace the composite
power supply PCB.
YES Replace the transfer charging
assembly/transfer charging
roller.
YES Replace the drum unit.
YES Replace the developing cylin-
der or the developing assem-
bly.
YES Replace the high-voltage
cable.
Action
4–7