User's Manual Part 2

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2831A EN 20041201Advanced operation (key-operator mode)
DRYSTAR 5302 USER MANUAL
Establishing the reference values and verifying image quality
After installation of a new Drystar 5302 and before initial use you must
establish Quality Control aim values. These values will be used as the base
line for comparison when daily Quality Control is done. These values should
be determined again after major service, repair or software update.
The following Quality Control aim values must be determined:
• The daily operating density levels. Refer to ‘Establishing the daily operating
reference density levels’ on page 49.
• Drystar 5302 image geometry. Refer to ‘Establishing the image geometry
reference values’ on page 52.
Once Quality Control aim values are established you must evaluate the
Spatial Resolution, the Artifact Levels and the Low Contrast Visibility to
determine if the image quality is acceptable. Refer to ‘Verifying Acceptable
Spatial Resolution, Artifact Levels and Low Contrast Visibility’ on page 54.
The Quality Control aim values, the Spatial Resolution and Artifact Levels and
the Image Geometry values are all recorded on the Quality Control charts.
Refer to ‘Quality Control Charts’ on page 75.
On these charts, the following test conditions are also recorded:
• The type and serial number of the Drystar 5302.
• The type and emulsion number of the film used to determine the reference
values.
• The time (day, month, year) that the values were established.
Before you can establish the daily operating levels, the Drystar 5302 must
be switched on for at least 15 minutes and it must be calibrated as well.
Refer to ‘Switching on the Drystar 5302’ on page 30 and ‘Performing the
calibration procedures’ on page 97 of the Drystar 5302 Reference manual.