Service manual

FrameMaker Ver.5.5(PC) EP1054/EP1085/EP2030 TROUBLESHOOTING
98.05.15
T- 6 6
(1) Blank copy
Cause
Step Check Item Result Action
Charging failure
1
Is the PC Drum Charge
Corona installed correctly?
NO
Install correctly.
2
Are the PC Drum Charge
Corona wire and grid mesh
normal?
NO
Check and replace if neces-
sary.
3
Is the wiring between High
Voltage Unit HV1 and corona
wire normal?
YES Replace HV1.
NO
Correct the wiring.
Developing Unit
out of position
4
Is the PC Unit inserted all
the way into position?
NO
Fully tighten the knob.
5
Are the Ds Rolls in contact
with the PC Drum?
NO
Reinstall the Developing
Unit.
6
Is the Developing Unit con-
nector plugged in?
NO
Plug it in.
7
Is the drive transmission to
the Developing Unit normal?
NO
Check and replace parts if
necessary.
Image transfer
failure
8
Is the Image Transfer
Corona wire normal?
NO
Check and replace if neces-
sary.
9
Is the wiring between High
Voltage Unit HV1 and
corona wire normal?
YES Replace HV1.
NO
Correct wiring.
Paper guide
shorting 10
Is the paper guide shorted
to the frame? YES
Connect the paper guide
through the resistor to the
frame.
(2) Black copy
Cause
Step Check Item Result Action
PC Drum ground-
ing failure
1
Is the PC Drum properly
grounded?
NO
Clean or replace the PC
Drum Ground Plate.
Developing bias
failure
2
Is the developing bias con-
tact normal?
NO
Clean or replace the devel-
oping bias contact.
3
Is the developing bias har-
ness normal?
YES
Replace the High Voltage Unit.
NO Replace the harness.
Light path failure
4
Has condensation formed
on the mirrors, lens, or PC
Drum?
YES
Clean the mirrors and
lenses, and run the Drum
Dehum operation.
5
Are the mirrors installed
properly?
NO
Reinstall the mirrors.
Exposure Lamp's
failure to turn ON
6
Does the Exposure Lamp
light up?
NO
Take the action for malfunc-
tion code C0400.