1-4-89
(14) Poor grayscale reproducibility.
Print example
Cause of trouble
1. Drum condensation.
2. Dirty LSU slit glass.
Defective part
Check description
Corrective Action
1
Paper
1. Check that the paper has
moisture absorbed.
2. Check that the paper has
stored in a humid place.
1. If the paper is damp, replace.Choose a dry
place to store paper.
2. If necessary, set a drum heater.
(see page 1-3-48)
2
Drum unit
Check that the surface of the
drum has dew condensation.
Execute Drum refreshing.
System Menu > Adjustment/Maintenance
3
LSU
Check whether the LSU slit
glass is contaminated in its
entirety.
1. If the LSU slit glass is dirty, execute Laser
scanner cleaning.
2. Replace the LSU. (see page 1-5-25)
Print example
Cause of trouble
1. Poor image adjustment.
Defective part
Check description
Corrective Action
1
Image adjustmen
Check if color adjustment is
insufficient.
Service Manual
Y116
540-5
Summary of Contents for d-Copia 4003MF
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Page 484: ...Installation Guide PF 320 Paper Feeder Installation Guide...
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