AGFA Drystar AXYS User Manual page 112

112 | Drystar AXYS | Advanced Operation (key-operator mode)
The printer will automatically print the QC test image.
6. After the image is printed, the system will display the optical density
values:
The displayed values represent the following steps on the test film:
Operating Level
Base + Fog
Low density the density value of the low
Mid density
High density the density value of the high
7. Record the low, mid and high density levels on Chart 1 ('Determination of
Operating Levels').
8. Press the Confirm key to return to the main menu.
9. Repeat step 1 through 8 once a day for five consecutive days, as indicated
on Chart 1.
10. Calculate the average value of the densities from the five images. These
values represent operating levels, or aim values, for each density.
11. Record the respective aim (average) values as the 'Operating levels' on
Charts 2A and 2B ('Daily Density Control Chart').
The calculated 'Operating levels' should be as following:
Operating Level
Base + Fog
Low density
2852E EN 20210601 1655
the density value of the Base +
Fog step
density step
the density value of the mid
density step
density step
WARNING:
If one of the density values does not meet or exceeds the
recommended values, the cause must be found and the
problem solved before any further clinical films can be
printed.
Value
(according to IEC 1223-2-4 or better)
0.22 ± 0.03
0.52 ± 0.07
Value (Macbeth units)
(according to NEMA
standards XR
23-2006)
0.22 ± 0.03
0.52 ± 0.07
1.35 ± 0.15
2.35 ± 0.15