Non-Continuous Tone Algorithms

HP Color LaserJet 5 and 5M printers remap non-continuous tone render algorithms into continuous tone algorithms. The following remapping takes place:

Snap to primaries

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Snap to primaries

Snap black to white, color to black

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Snap black to white, color to black

Device best dither

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Continuous tone smooth 150 lpi

Error diffusion

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Continuous tone smooth 150 lpi

Monochrome device best dither

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Monochrome continuous tone smooth

 

 

150 lpi

Monochrome error diffusion

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Monochrome continuous tone smooth

 

 

150 lpi

Cluster ordered dither

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Continuous tone smooth 150 lpi

Monochrome cluster ordered dither =

Monochrome continuous tone smooth

 

 

150 lpi

User-defined dither

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Continuous tone smooth 150 lpi

Monochrome user-defined dither

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Monochrome continuous tone smooth

 

 

150 lpi

Ordered dither

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Continuous tone smooth 150 lpi

Monochrome ordered dither

=

Monochrome continuous tone smooth

 

 

150 lpi

Noise ordered dither

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Continuous tone smooth 150 lpi

Monochrome noise ordered dither

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Monochrome continuous tone smooth

 

 

150 lpi

User-Defined Dithers

The Download Dither Matrix command (?*m#W) can create a dither matrix for one or all three primary colors, in effect providing halftone screens. User-defined dither matrices can be used for optimizing the printer's output capabilities when using device-dependent color spaces. They are ignored for device-independent color spaces, since the printer cannot be calibrated as is necessary for device-independent color. User-defined halftones can be downloaded for each component of the color space.

D-6 Modifying Output Color (Color LaserJet, 5, 5M, DeskJet)

EN

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HP L 5 manual User-Defined Dithers, Non-Continuous Tone Algorithms