HP PCL 5 Manuel d'utilisateur Page 195

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EN Color Printing Overview (Color LaserJet, 5, 5M, DeskJet) A-9
Cluster Ordered Dither (
?*t7J, ?*t8J)
Ordered Dither (
?*t11J, ?*t12J)
Color processing reverts to device-dependent processing if the
render algorithm is changed from one of the above. This is because
extensive device characterization is necessary to achieve
device-independence—calibration must be based on known
parameters that affect the device's color gamut. Render algorithms
such as Snap to Primaries (
?*t1J), Snap Black to White and Colors
to Black (
?*t2J), or User-Defined Halftone (?*t9J) either limit the
number of colors available, or are undefined to the extent that their
performance is not as precise. These algorithms, therefore, produce
device-dependent results. Device-independent color is again
generated if the render algorithm changes to one of the 5 listed above
and the color space has not changed.
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