HP PCL/PJL reference (PCL 5 Color) - Technical Reference Manual

EN Modifying Output Color (Color LaserJet, 5, 5M, DeskJet) D-3
Halftone Render Algorithms
The HP color printers have the capability of applying different halftone
render algorithms to achieve the desired output on the printed image.
Render algorithms allow you to change the characteristics of the
image by changing the way pixels are rendered. Each halftone render
algorithm produces a different affect on the output, varying the texture
and color appearance of the printed image.
To choose the type of rendering to be used, use the Render Algorithm
command, described below. This command allows you to choose one
of the existing rendering algorithms or to choose a user-defined
pattern created with the Download Dither Matrix command.
Render Algorithm Command
The Render Algorithm command selects the algorithm to be used for
rendering page marking entities on a given page.
?*t#J
# = 0 - Continuous tone (device best dither)
1 - Snap to primaries
2 - Snap black to white, color to black
3 - Device best dither
4 - Error diffusion
5 - Monochrome device best dither
6 - Monochrome error diffusion
7 - Cluster ordered dither
8 - Monochrome cluster ordered dither
9 - User-defined dither
10 - Monochrome user-defined dither
11 - Ordered dither
12 - Monochrome ordered dither
13 - Noise ordered dither
14 - Monochrome noise ordered dither
15 - Continuous tone smooth 150 lpi