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Tests
3. Determine the new calibration factor of a color according to the following formula:
corr_new =
with:
corr_new:
D_nom:
D_act:
corr_actual:
4. Repeat the steps 1. through 3. until the grayscale comes out neutral.
Note
A PBL without laser point (function with laser point is inactive) has no influence on
the paper fog and no influence on the maximum densities. Only densities between
these two extreme values will be calibrated.
The calibration factors have no influence on the Dmax values.
5.4
Printing an MBL Test
MBL Test
Note
The input in the menu Settings > Machine settings > Max. calibr. Cycles
(Maximum number of calibration cycles) defines how often a PBL should be repeated
automatically if the values are not in tolerance after the first or further attempts (we
recommend to keep the default value).
Note
If the master paper is not inserted when an MBL is started, the operator is prompted to
insert the master paper.
An info screen pops up during the test.
Note
If the Auto-MBL function is active an automatic MBL is executed after the machine
switched on and if the previous MBL was made on the previous day or even before (see
Printer Settings
in Chapter 4). Which means that switching off after midnight and
switching on the same day immediately initiates an Auto MBL if an MBL was made
before midnight.
5-20
2005-05-01 / PN 04092_01
corr_actual x D_nom / D_act
new calibration factor
(to obtain a neutral
grayscale)
desired density of the color
measured density of the color
current calibration factor.
d-lab.2, d-lab.2plus, netlab.2plus: Operation
Press in this order:
Test
Start MBL
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