
50
2801E EN 20050215
Advanced operation (key-operator mode)
D
RYSTAR
4500 U
SER
MANUAL
Establishing the reference values and verifying image quality
After installation of a new Drystar 4500 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
on page
•
Drystar 4500 image geometry. Refer to
‘Establishing the image geometry
on page
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
Spatial Resolution, Artifact Levels and Low Contrast Visibility’
on page
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
on page
On these charts, the following test conditions are also recorded:
•
The type and serial number of the Drystar 4500.
•
The type and emulsion number of the film used to determine the reference
values.
•
The type of densitometer used.
•
The time (day, month, year) that the values were established.
Before you can establish the daily operating levels, the Drystar 4500 must
be switched on for at least 15 minutes and it must be calibrated as well.
‘Switching on the Drystar 4500’
on page
and
on page
of the Drystar 4500 Reference manual.
2801 E EN UM Drystar 4500.fm Page 50 Monday, February 21, 2005 2:32 PM
Содержание Drystar 4500
Страница 1: ...Drystar 4500 User manual 2801 E EN UM Drystar 4500 fm Page 1 Monday February 21 2005 2 32 PM ...
Страница 69: ...Equipment information sheet Appendix A 2801 E EN UM Drystar 4500 fm Page 69 Monday February 21 2005 2 32 PM ...
Страница 77: ...Quality Control Charts Appendix B 2801 E EN UM Drystar 4500 fm Page 77 Monday February 21 2005 2 32 PM ...