Scanner Calibration Pico - AGFA d-lab.3 Technical Documentation Manual

Tests

Scanner Calibration PiCo

− Film carrier must be inserted and empty.
− Call up:
Test
Start PiCo
− PiCo is performed automatically. It only has to
be started manually if it was not terminated
correctly.
The pixel correction calibrates the light path of the
lamp all the way to the CCD. It is required for the
following jobs:
− Balancing the pixel sensitivity of the CCD (for
each single pixel).
− Defining the illumination intensity (influenced by
lamp, filter, mirror box, film carrier), e.g. in case
of lamp replacement.
− Defining the window of the inserted film carrier
(illumination on the CCD chip).
The pixel sensitivity varies, among others, with the
temperature of the CCD chip and with brightness.
For this reason, PiCo is performed automatically in
the following cases:
− Machine startup
Whereby any film carrier may be inserted when
the machine is started.
− Film carrier changing
− Major light and temperature fluctuations (light
path / CCD)
Do not change the film carrier during PiCo!
The PiCo is interrupted when the film carrier is
changed and the exposure window is not defined
correctly. This results in wrongly exposed prints
(brightness, colors) and possibly prints with white
borders.
After a successful PiCo, the status line shows the
message Terminate Scanner calibration. If the
PiCo is not terminated correctly, it must be started
manually as otherwise the prints may get white
borders: Touch Start PiCo.
If the automatic PiCo is triggered during the
production, the scanner lamp should be checked.
5.16
2003-06-01 /PN 9008
Operation
m3
AGFA d-lab.3