In order to print accurate colors, it is necessary to convert the color values in your îžles to the color values that
will produce the correct colors from your printer, your inks, and your substrate. An ICC color proîžle is a
description of a printer, ink, and substrate combination that contains all the information needed for these
color conversions.
These color conversions are performed by your Raster Image Processor (RIP), not by the printer. For further
information on the use of ICC proîžles, see the documentation for your application software and for your RIP.
Substrate-advance compensation
Accurate substrate advance is important to print quality because it is part of controlling the proper placement
of dots on the substrate. If the substrate does not advance the proper distance between printhead passes,
light or dark bands appear on the print, and there may be an increase in graininess.
The printer has a substrate-advance sensor and is calibrated to advance correctly with most of the substrates
that appear in the Internal Print Server. When the substrate is loaded, the substrate-advance sensor checks
the substrate and decides whether it can be adjusted automatically or not. If not, the automatic adjustment is
disabled.
If the substrate cannot be adjusted automatically by the substrate-advance sensor and the substrate advance
is not correct, you may wish to change the substrate-advance compensation manually. See Troubleshoot
print-quality issues on page 314 for steps to determine whether substrate-advance compensation will help
you. In general, substrate-advance calibration is recommended when you see print-quality problems related
to substrate advance, or when you deîžne a new substrate.
NOTE: Manual substrate-advance compensation is available only when the substrate-advance sensor is
disabled—automatically, or manually through the Printing adjustments button in the Internal Print Server
main window.
The substrate-advance sensor may not work correctly if it is dirty. See Clean the substrate-advance sensor
on page 231.
If the sensor was dirty, after cleaning it the advance compensation already calculated may not be valid, so
you are recommended to set the advance compensation for this substrate to zero and check that the advance
is correct. If the advance is still not accurate, follow the advance compensation process, bearing in mind that
the sensor is not dirty and probably your substrate type is not compatible with it.
Manual substrate-advance compensation
While printing, you can view and change the substrate-advance compensation of the currently loaded
substrate at any time from the Internal Print Server by selecting the print job and then the Printing Adj.
button, or by selecting Printer > Printing adjustments.
Alternatively, you can use the Print adjustment button in the Internal Print Server main window. This opens a
dialog box with an advance compensation section, in which there are three main areas:
146 Chapter 6 Printer calibration ENWW
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