QMS 2425, Reference

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Your printer provides three different options for halftones—basic,
standard, and advanced. This table lists the halftone type options in
the Admin/Emulations/PostScript/Halftone Type menu. Notice that the
number of gray levels increases with a by increasing the halftone type
and the printer resolution.
» Note: The default for this menu is standard. The standard
settings listed are optimized for performance, and the advanced
settings are optimized for quality.
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Your QMS 2425/2425 TURBO Print System offers a Smooth(600dpi)
option in the Admin/Engine/Print Quality menu, (see chapter 4,
“Printer Configuration”). This QMS edge-smoothing technique alters
the size and position of dots on the outer edges of an object by reduc-
ing the width of the laser pulse to a fraction of the full pulse width.
This smooths jagged edges in text, lines, and graphics and generally
improves their print quality.
» Note: Smoothing isn’t recommended when you’re printing halftones,
because it may introduce artifacts in the halftone or scanned image.
For better results, if smoothing is required in text and line art, use the
basic halftone types option.
300 DPI 600 DPI 1200 DPI
Halftone
Type
LPI Angle Level LPI Angle Level LPI Angle Level
Basic 53.03 45.0 33 70.71 45.0 73 84.85 45.0 200
Standard 53.03 45.0 129 106.06 45.0 129 106.06 45.0 256
Advanced 67.08 26.56 81 102.89 59.04 137 126.49 18.43 256