AGFA 5367/300, User Manual

Page: 112 / 168

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 Value (Macbeth units)
(according to NEMA
standards XR
23-2006)
Base + Fog the density value of the Base +
Fog step
0.22 ± 0.03
Low density the density value of the low
density step
0.52 ± 0.07
Mid density the density value of the mid
density step
1.35 ± 0.15
High density the density value of the high
density step
2.35 ± 0.15
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.
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 Value
(according to IEC 1223-2-4 or better)
Base + Fog 0.22 ± 0.03
Low density 0.52 ± 0.07
112 | Crystal-M Imager | Advanced Operation (key-operator mode)
3852B EN 20210601 1655