Paper And Chemical Calibration Pbl And Mbl; Mbl And Pbl: Prerequisites - AGFA d-lab.3 Technical Documentation Manual

Tests

Paper and Chemical Calibration PBL and MBL

The calibration only applies to the paper on which
the PBL was printed. All other papers are not
affected. Every paper configuration, i.e. every
individual cassette code, used for production must
be calibrated.
The PBL consists of two steps:
1. First the light intensity of the laser is
determined. The light intensity is adjusted in
such a way that the preset maximum densities
are reached without blooming effect on the
paper. Usually this step is required only once
for first calibration of the PBL. Thereby the test
prints graded densities and halo print are
printed.
2. In the next step the PBL test print is used to
adjust a neutral grayscale. This needs usually
several cycles.
The MBL is printed on the so-called master paper.
This is the paper that is used most frequently in
the lab.
The MBL then calibrates the master paper directly.
Based on the changes determined on the master
paper between the last and the current MBL, all
other papers are adapted. So, any change in the
MBL influences all paper configurations.

MBL and PBL: Prerequisites

− The last order must have been terminated.
− No paper must be in the paper transport of the
Printer and the Paper Processor for the MBL
and the PBL.
− There must be enough paper in the magazine
for the two tests (approx. 3 m).
− The chemical solutions must be on nominal
temperature.
5.2
2003-06-01 /PN 9008
Operation
AGFA d-lab.3