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Maintaining optimal Image Quality
Calibration is necessary to maintain optimal Image Quality. This is required in
the following situations:
• Before initial use of a film,
• When a media with different batch number is loaded,
• After a certain number of copies have been printed,
• After the replacement of the thermal head.
Topics:
•
Overview of calibration functions
•
Understanding the calibration policy
Overview of calibration functions
Two calibration functions are provided for the printer.
Calibration
'Film calibra-
tion'
'Cleaning the
print head'
Understanding the calibration policy
You should regularly perform a film calibration to assure that the image
quality remains optimal.
Film calibration can be initiated in 2 ways:
• Automatically, i.e. after loading every 'x' new film packs (automatic
initiation),
• Manually, i.e. you decide for yourself when to perform a film calibration,
e.g. daily, once a week, or only when the image quality tends to degrade.
For setting automatic or manual film calibration initiation, refer to 'Changing
general image quality settings - Film calibration'.
This checklist will assist you in determining the correct operation in order to
maintain the optimal image quality from your printer:
1. Check if persistent white dots or white stripes in transport direction are
visible on the film.
Purpose
• To measure and set the
system density of the
printer.
• To measure and set the
film sensitometry val-
ues.
To reduce irregularities on
the film.
Crystal Imager | Problem solving | 127
When?
• Automatically after printing
"x" film packs or when a
media with different batch
number is loaded.
• After an explicit action of
the operator.
When image quality problems
occur.
3830B EN 20210520 0952
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