AGFA d-lab.3 Digital Compact Lab

Repair
Printer
Setting the Pixel Coverage
The three lasers Red, Green, Blue produce three
pixels of the colours Cyan, Magenta, Yellow on
the paper.
Requirement:
The three pixels are centred on top of each other:
tolerance: 1 / 8 pixel width offset with respect to
each other.
Experience has shown that exceeded tolerances
are judged very differently. In general, deviations
of more than one pixel width are regarded as
quality deterioration on prints from digital sources
(graphics, letters, fine lines). On prints from films,
deviations of about one pixel width are not visible
so often.
Adjustable:
The service technician can adjust the pixel
position in scanning direction, i.e. each colour can
be shifted at a right angle to the paper transport
direction.
Not adjustable:
The pixel position parallel to the paper transport
direction cannot be adjusted in the field; this
adjustment is only possible in the factory.
If deviations occur in this direction, the colour
laser scanner has to be replaced!
Warning!
Never open colour laser scanners!
Risk of injuries caused by laser beams!
Adjusting the Pixel Coverage
Prerequisites:
− Printer started
− At least one paper magazine in the Printer
− Paper data loaded for the inserted paper
− PPL in tolerance
Magnifying glass with a 10-fold magnification
Keyboard
Mouse
AGFA d-lab.3 2001-01-02 /PN 9009 6.3.61