Horizon Imager User’s Manual 11-1
Calibration
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There are several calibrations that are performed automatically, or
can be performed manually, to optimize the image quality on
printed sheets given variations in media and operating conditions:
•
Film calibration
is performed automatically by the imager
when a
DirectVista
grayscale film cassette is inserted into the
imager for the first time. You can also perform this calibration
manually.
•
Internal densitometer calibration
allows you to recalibrate the
imager’s internal densitometer, which is used to read optical
densities when a
DirectVista
grayscale film calibration is
performed.
•
Thermal print head calibration
creates a characterization of
the thermal print head to compensate for non-uniformities in the
imaging properties of the print head.
•
Print length calibration
can be performed to correct for images
running off or printing short of the bottom of a sheet.
Only the film calibration procedure is covered in this manual. For
more information about the other calibrations, and some of the
other automatic compensations made by the imager, refer to the
Horizon Imager Technical Manual
.
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