HP Color LaserJet 4600 Printer series - Manual (Page 128)

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Halftone options
Halftone options affect the resolution and clarity of your color output.
You can select halftone settings for text, graphics, and photographs
independently. The two halftone options are Smooth and Detail.
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The Smooth option provides better results for large, solid-filled
print areas. It also enhances photographs by smoothing out fine
color gradations. Choose this option when uniform and smooth
area fills are top priority.
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The Detail option is useful for text and graphics that require sharp
distinctions among lines or colors, or images that contain a
pattern or a high level of detail. Choose this option when sharp
edges and details are top priority.
Note Some applications convert text or graphics to raster images. In these
cases, the Photographs settings will also control text and graphics.
Neutral Grays
The Neutral Grays setting determines the method used for creating
gray colors used in text, graphics, and photographs.
Two values are available for the Neutral Grays setting:
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Black Only generates neutral colors (grays and black) using only
black toner. This guarantees neutrals colors without a color cast.
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4-Color generates neutral colors (grays and black) by combining
all four toner colors. This method produces smoother gradients
and transitions to non-neutral colors, and it produces the darkest
black.
Note Some applications convert text or graphics to raster images. In these
cases, the Photographs settings will also control text and graphics.
Edge Control
The Edge Control setting determines how edges are rendered. Edge
control has two components: adaptive halftoning and trapping.
Adaptive halftoning increases edge sharpness. Trapping reduces the
effect of color plane misregistration by overlapping the edges of
adjacent objects slightly.