Void Image - Minolta CF910 Service Manual

(9) Void Image

<Troubleshooting Procedure>
Cause Step
1
Defective 2
Developing
Unit
Defective 3
Transfer Film
4
Defective 5
Image Trans-
fer Corona
Defective 6
Transfer Film
7
Defective 8
Image Trans-
fer Corona
9
Check Item
Does the image problem occur
on the leading edge of the
copy?
Is the developing bias being
output properly?
Is the Transfer Film affixed
properly?
Is the Transfer Film dented or
scratched?
Is HV3 correctly output?
Is the Transfer Film affixed
properly?
Is the film dented or
scratched?
Is HV3 correctly output?
Is the backup adjustment value
correct?
T-68
1144T016AA
Result
YES Go to Step 6.
NO Check the wiring between
PWB-I and HV4 and, if it is
intact, change HV4.
NO Referring to
DIS/REASSEMBLY,
ADJUSTMENT, reaffix the
film.
YES Change the film.
("Jam Sensor," "PRT Area,"
and "Gradation Adjust")
NO Check the wiring between
PWB-I and HV3. If it is
intact, replace HV3.
NO Referring to
DIS/REASSEMBLY,
ADJUSTMENT, reaffix the
film.
YES Change the film.
("Jam Sensor," "PRT Area,"
and "Gradation Adjust")
NO Check the wiring between
PWB-I and HV3. If it is
intact, replace HV3.
NO Readjust by referring to
DIS/REASSEMBLY and
ADJUSTMENT.
Action