Service manual

FrameMaker Ver.5.5(PC) EP1054/EP1085/EP2030 TROUBLESHOOTING
98.05.15
T- 6 7
(3) Low Image Density
Cause
Step Check Item Result Action
PC Drum life
1
Does the PC Drum have
enough service life?
NO
Replace the PC Drum.
2
Do the fan motors turn
properly? (Ozone deteriora-
tion, temperature rise)
NO
Troubleshoot the fan
motors.
PC Drum ground-
ing failure
3
Is the PC Drum properly
grounded?
NO
Clean or replace the PC
Drum Ground Plate.
Drum charge
failure 4
Are the PC Drum Charge
Corona wire and grid mesh
normal?
NO
Check and replace if neces-
sary.
5
Is the wiring between High
Voltage Unit HV1 and
corona wire normal?
YES Replace HV1.
NO
Correct the wiring.
Optical failure
6
Are the mirrors and lenses
dirty or covered with con-
densation?
YES
Clean the mirrors and
lenses.
Image transfer
failure
7
Is the Image Transfer
Corona dirty?
YES
Clean the Image Transfer
Corona or replace the wire.
8
Is the copy paper damp?
YES
Replace copy paper and
instruct the user in how to
store paper and to keep the
copier plugged in during the
night.
Developing failure 9 Is Db adjusted properly? NO Make Db adjustment.
10
Are the Ds Rolls in contact
with the PC Drum?
NO
Reinstall the Developing
Unit.
11
Is the developing bias
contact normal?
NO
Clean or replace the devel-
oping bias contact.