Performing A Density Reproduction Check - AGFA DRYSTAR AXYS Service Manual

DD+DIS033.07E
2.5.5

Performing a Density Reproduction Check

NOTE:
Performing this step is a verification method for step "Performing a Density
Reproduction Check". If the Density Reproduction Check is successful, the internal
densitometer calibration is OK.
(1) In the browser pages select menu "Service Engineer Tools - Enter Service
Command Session - 3 Print Image - 1 Test Image".
(2) Select the tray with DT2M films.
(3) Print out LinCheck.zip and measure the density of the eleven 100 % – 0% fields
with a calibrated MacBeth TR-924, X-Rite 331, 341, X-Rite 301, X-Rite 310 or
Gretag D200-2 densitometer.
(4) To check linearity fill in measured values in the density reproduction check Excel
file. See Figure 16.
Select densitometer:
Square Measured density Target density Density diff. Check
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
When entering the measured density values the decimal point appears in a different spot, e.g. measured value = 0.23, value to enter = 23.0
Density
0
30
45
60
75
90
105
120
135
150
165
180
195
210
225
240
255
270
285
300
315
(5) After the measured values are filled in, the density reproduction is calculated
automatically.
(6) At the right hand side of the table is shown, whether the Density Reproduction is
ok or not. In case it is not ok you are requested to carry out a CDM calibration.
The controlled version of this document resides on MedNet. Any printed copy of this document is uncontrolled.
Edition 1, Revision 1
06-2008
X-rite 341
4
21 21
56 55,4
91 89,8
127 124,2
161 158,6
195 193
229 227,4
263 261,8
298 296,2
333 330,6
368 365
Lower limit Upper limit
0 0
-5 5
-7 7
-8 8
-9 9
-10 10
-11 11
-12 12
-12 12
-13 13
-13 13
-14 14
-14 14
-14 14
-15 15
-15 15
-15 15
-16 16
-16 16
-16 16
-16 16
DOCUMENT CONTROL NOTE:
DRYSTAR AXYS
Adjustments and Calibrations
Dmax = 365
0 0
0,6 0
1,2 0
Density Reproduction =
2,8 0
No CDM calibration needed for Mammo film
2,4 0
2 0
1,6 0
1,2 0
1,8 0
2,4 0
3 0
Density difference LinCheck image DT2Mammo in DSAXYS
20
15
X-rite 310
X-rite 331
10
X-rite 341
X-rite 301
5
Mac Beth TR924
0
Gretag D200-2
-5
-10
-15
-20
0 100
Target Density
Figure 16
Type 5367/100
Repair and Service
OK
200 300 400
Chapter 3.6 / 27
Agfa Company Confidential
Lower limit
Upper limit
Density difference