User Manual Part 2

93
2852 A EN 20070205
DRYSTAR AXYS
6 After the image is printed, the system will display all measured optical density
values:
The displayed values (that have to be monitored) represent the following steps on the
test film:
7 Record the low, mid and high density levels on Chart 1 (‘DrystarAXYS Determi-
nation of Operating Levels’). Refer to “Quality Control Charts” on page 149.
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 the
Drystar AXYS Chart 1.
Operating Level
Value (Macbeth units)
(according to
IEC 1223-2-4 or
better)
Low density
the density value of the low
density step
0,4 ± 0,05
Mid density
the density value of the mid
density step
1,2 ± 0,15
High density
the density value of the high
density step
2,0 ± 0,2
Base + Fog,
Density difference
(DD),
Maximum density
(Max D)
These values are displayed but not important for the QC
procedure for general radiography applications.
WARNING: If the mid density value does not meet or exceeds the
recommended values, the reason must be found and the problem
solved before any further clinical films can be printed.
WARNING: Refer to “Preventive maintenance schedule” on
page 121 and “Maintaining image quality and resolving image
quality problems” on page 258 (Reference manual), or call your
local Agfa service organization.
DD: 1.56
(Densitometer=MB924)
The density levels are displayed, e.g:
Max D: 3.2 Hi D: 1.91
Mid D: 1.13 Lo D: 0.35
Base+Fog: 0.19
DD: 1.56