Minolta EP3010 Manual page 329

8. Void Areas
Cause Step
Image transfer fail-
ure
Damp copy paper
Small amount of
toner supplied
PC Drum conden-
sation
Paper guide short-
ing
Fusing failure
9. Smear on Back
Cause Step
Dirty Developing
Unit
Dirty Image Trans-
fer Corona
Dirty Suction Unit
Dirty Fusing Unit
Check Item
Is the Image Transfer Corona
1
installed correctly?
Is the Image Transfer Corona
2
wire dirty?
Is the image improved by load-
ing new paper?
3
Is toner uniformly attracted
4 onto the Sleeve Roller?
Is the image improved by run-
5 ning Drum Dehum.?
Is the paper guide shorted to
6 the frame?
Is the Lower Fusing Roller
7
scratched or deformed?
Check Item
Is the bottom part of the Devel-
1 oping Unit dirty?
Is the Image Transfer Corona
2
dirty?
Is the Pre-Image Transfer
3
Guide Plate dirty?
Are the Suction Belts dirty?
4
Is the Fusing Unit Entrance
5
Guide Plate dirty?
Are the Upper and Lower Fus-
ing Rollers dirty?
6
T-92
Result Action
Reinstall.
NO
Clean or replace the Image
YES
Transfer Corona wire.
Change the copy paper and
instruct the user in how to
YES store paper and to keep the
copier plugged in during the
night.
Check the Db value and devel-
NO oper amount, and check the
operation of the Bucket Roller.
Run Drum Dehum. and
YES instruct the user to take further
action.
Connect the paper guide
YES through the resistor to the
frame.
Replace the Lower Fusing
YES
Roller.
Result Action
Clean and check the Devel-
YES oper Scattering Prevention
Seal.
Clean the corona and check
YES
the Developing Unit.
Clean the guide plate and
YES
check the Developing Unit.
Clean the Suction Belts and
YES
check the Developing Unit.
Clean the guide plate and
YES
check the Developing Unit.
Clean or replace the Upper
and Lower Fusing Rollers and
YES
check the Fusing Roller clean-
ing mechanism.