Colour Adjustments - Oki OKIPAGE 8c Colour Manual

Colour adjustments

Certain images such as bitmaps, sometimes print with a
strong hint of a particular colour. Images that appear fine
when viewed on a monitor may not necessarily print that way
due to the reasons described previously. The colour that
appears to dominate the picture will vary depending on
factors such as the scanner (or other input device) having a
bias towards a particular colour, or the monitor's ability to
represent certain colours on-screen. To compensate for this,
the OKIPAGE 8c has a colour adjustment system that can
reduce the amount of any of the process colours put on the
page in relation to the others. If you run Windows on your
computer, the printer drivers supplied with your printer
provide these adjustments. These are outlined in this manual
and explained in more detail in the driver's on-line help. (Click
the Help button in any driver dialogue box.). For other
operating systems or drivers, the printer's Operator Panel
menus provide similar adjustments, detailed in the
OKIPAGE 8c User's Guide.
Colour Guide
This is useful if, for example, you find that all of your
graphics have a tendency to contain too much blue. To
compensate for this, you could reduce the amount of cyan or
magenta as it is these two colours that combine to produce
blue. Bear in mind that other colours containing cyan or
magenta will also be affected. An alternative would be to
increase the amount of yellow. This has the advantage of
increasing colour saturation while balancing the image.
Another method of decreasing strong colours is to increase
the lightness setting in the printer driver. To compensate for
this, the saturation setting must be stepped down accordingly.
As a rule, the saturation should be set down an equal number
of steps to the level that the lightness has been stepped up.
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