Kyocera TASKalfa 420i, Operation Manual, Page: 327 / 428

Troubleshooting
OPERATION GUIDE 10-3
10
Printouts are too dark. Is the machine in Auto
Density mode? Set the correct density level for
auto density. —
Is the machine in Manual
Density mode? Use [Image Quality] to set the
correct density level. 3-8
When changing the default density
level, adjust the density manually
and choose the desired level. —
Copies have a moire
pattern (dots grouped
together in patterns
and not aligned
uniformly). Is the original a printed
photograph? Set the image quality to [Print
Photo]. 3-8
Printouts are not
clear. Did you choose appropriate
image quality for the original? Select appropriate image quality. 9-2
Printouts are dirty. Is the platen or the document
processor dirty? Clean the platen or the document
processor. 9-2
Is the transfer roller dirty? Brush the transfer roller clean. 9-6
Is the drum dirty? Carry out Drum Refresh. 8-43
Carry out Developer Refresh. 8-47
Is the scanner dirty? Carry out Laser Scanner Cleaning. 8-47
Is the Printed Document
Guard Kit enabled? Disable the Printed Document
Guard Kit. Appendix-
9
Printouts are fuzzy. Is the machine being used in
very humid conditions? Carry out Drum Refresh. 8-43
Images are skewed. Are the originals placed
correctly? When placing originals on the
platen, align them with the original
size indicator plates. 2-32
When placing originals in the
optional document processor, align
the original width guides securely
before placing the originals. 2-32
Is the paper loaded
correctly? Check the position of the paper
width guides. 2-33
Symptom Checkpoints Corrective Actions
Reference
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