d-lab.2, d-lab.2plus, netlab.2plus - D-Lab 1

d-lab.2, d-lab.2plus, netlab.2plus: OperationTests5.3.2 PBL Test with Laser PointThe PBL test with laser point adjusts the maximum laser intensities for the three colorchannels (red, green, blue). The adjustment is made by providing the maximum densities(Dmax) (see Changing the Maximum Densities of a Paper in this chapter).The test routine adjusts the intensities by exposing the preset maximum densities onpaper without blooming effects.If the option with laser point is selected the PBL is made in two steps:1. Adjustment of the maximum laser intensity (maximum densities) by means of the testprints graded densities and halo print.2. Adjustment of the Printer to print a neutral grayscale. For this purpose the PBL testprint is printed several times (identical with PBL without the option with laser point).PBL test with laser point:– is printed automatically during first calibration of a paper, i.e. if the magazine codeindicates that a paper is used for the first time;– must be printed when changing the paper type (the function with laser point must beactivated; see Printing a PBL Test in this chapter).5NoteOn principle all PBLs (on master paper or non-master paper) can be printed with theoption with laser point without any negative effects for the print quality. Actually thisoption can be used in regular intervals to compensate for slight system fluctuationswhich may occur over a longer period of time. This may help to provide for a moreconsistent print quality. The calibration process itself, however, takes a little longer.AgfaPhoto 2005-05-01 / PN 04092_01 5-11