Service manual

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4. FAQ (Specific Problems and Solutions)
No. Occurrence
level*
Function Symptom Condition Cause Solution Possible call or complaint
1 B Print
results
Depending on print
density, black streaks
with 4 mm pitch or
faint white streaks
with 1-2 mm pitch
may appear in
gray-scale printing.
- Printing with gray-scale. Due to changes in the gray-scale
process specifications, streaks
appear if the ink amount ejected
from the print head is small.
1. Change the original images
into gray mode with application
(ZoomBrowser or Photoshop).
Print not selecting gray scale
printing. However color is
tinged with red or blue a little.
2. ROMVerUp (->1.03 or more)
- Streaks appear.
2 B Print
results
Green ink is not
ejected.
- After the printer has not
been used for more than
one week.
- Under high temperature
and low humidity
circumstances.
Green ink is clogged, as it has not
been used for a long time.
- Perform print head deep
cleaning.
- Leave the print head untouched
with the print head capped
overnight.
- Color appears abnormal.
(The same phenomenon as
non-ejection of ink, in
general)
3 B Print
results
The back side of
paper is smeared in
borderless printing.
- When print patterns with
high duty are often printed.
Ink mist generated during printing
or cleaning adheres on the rib of the
platen.
Clean the inside of the printer.
(Wipe the platen ribs with wet
cloth.)
The back side of paper is
smeared.
* Occurrence level:
A: The symptom is likely to occur frequently. (Caution required)
B: The symptom may occur under certain conditions, but likeliness is assumed very low in practical usage.
C: The symptom is unlikely to be recognized by the user, and no practical issues are assumed.