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Is the white background element of the loading mechanism
clean? If not, the grays will show a color cast in the copy and the system will
behave erratically (some copies will be acceptable whilst some others won't).
Has the scanner been on for more than 1 hour? If not the colors may
vary along the scanning.
Does the scanner need to run the scanner maintenance process?
If so, follow the scanner maintenance manual. If unsure, see section 3.1.2.2 of
the Annex. Typically, the scanner maintenance process should be run every
100 scans or once a month, but it depends widely on the type of originals you
are scanning. If you suspect that the scanner may have a problem (colors very
different from the original, grays not neutrals, broken leaned lines), then run
the scanner maintenance process.
Has the original dried-up? If the ink is still fresh, the original may be
damaged and the glass plate of the scanner may be dirtied.
Is the height setting in the loading mechanism adapted to the
thickness of the original? If the original is thicker than 2 mm., please
follow the guidelines in section 3.6 of the Annex and always remember to
handle the original with care.
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Is the media properly loaded and with the correct name
appearing in the front panel? If not, change the media name or reload a
new media, or otherwise you risk having a deteriorated Image Quality.
Did you run the Pen Alignment and Color Calibration for the
media loaded and the current set of pens? If not, execute a Pen
Alignment and a Color Calibration as described in section 3.1.4 of the Annex.
Is Color Calibration On? Follow the steps in section 3.1.4 of the Annex.
Has the printer been inactive for more than 6 hours? If so take into
account that the first swaths (ink dropping passes) may show a duller color
(less ink delivered) than the rest. To avoid this, run a small print test from the
printer front panel.
Is there enough ink for the job? You may look at the ink level indication
on the printer front panel. If necessary, replace any empty cartridges; there is
no need to do a Closed Loop Color or Printhead Alignment afterwards.
Color Reproduction for the HP Large Format Color Copiers family: cc800ps, 815mfp, 5500mfp and 4200 scanner
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