Kyocera KM-C850 Operation Manual page 287

Trouble
A moiré pattern (the
phenomenon where the dots
do not appear to be lined up
properly but seem to be
grouped together in
patterns) appears on the
copies.
The color of the originals and
the copies seem different.
The copies are not clear.
The copies are dirty.
The copies are blurred or
faded.
The copy image is skewed.
Paper jams occur often.
Black lines appear on copies
when copying from the
optional Document
Processor.
Checkpoint
Is the original that you are copying a
printed photograph?
Are the color adjustment settings correct?
Did you select an image quality mode that
was appropriate to the original being
copied?
Is the platen or the original cover dirty?
Is the copier being used in an environment
of high humidity?
Were the originals set correctly?
Was the paper set correctly?
Is the copy paper loaded properly in the
drawer[cassette]?
Is the copy paper curled, folded over or
wrinkled?
Is there any jammed paper or loose scraps of
paper remaining inside the copier?
Does the size of the paper actually set in the
multi-bypass match the size you selected in
the touch panel?
Is the slit glass dirty?
Section 9 TROUBLESHOOTING
Procedure
Set the image quality to the printed photo
mode.
Perform the "Adjusting the color balance"
color copy setting.
Perform the auto color adjustment
procedure.
Select an appropriate image quality mode.
Clean the platen and/or the original cover.
Perform the drum refresh procedure.
When setting originals on the platen, align
them securely with the original size
indicator plate.
When setting originals in the optional
Document Processor, align the original
insert guides securely before setting the
originals.
Set paper securely against the guide plates.
Load the paper properly.
Depending upon the type and condition of
the copy paper, finished copies can curl and
may be the cause of paper jams. Remove the
paper from the drawer[cassette], turn it
over, and set it in the drawer[cassette]
again.
Replace the copy paper with new paper.
Carry out the appropriate procedure to
remove the paper.
Make sure the size of the paper set in the
multi-bypass matches the size you select in
the touch panel.
Clean the slit glass.
Reference
page
4-4
5-1
7-101
4-4
10-1
7-103
4-1
8-2
3-1
3-1
3-1
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9-5
7-96
10-1
9-19