HP QMS 1660 manual 59

Emulations

Setting PostScript Parameters

Emulation Level

This menu allows you to select a PostScript emulation level.

Menu	Administration/Emulations/PostScript/Emulation Level
Choices	Level 2—For PostScript Level 2 files and most Level 1 files.
	Level 1 B/W—For files that contain only black-and-white
	PostScript Level 1 operators. This mode does not support
	the PostScript color operators; the use of color operators
	could cause the print job to fail.
	Level 1 Color—For files that contain color PostScript Level 1
	operators. This mode accepts color PostScript Level 1
	operators and translates these commands to the
	appropriate grayscale. This is the recommended setting for
	Level 1 compatibility since it contains all of the commands
	in Level 1 B/W and the color commands.
Default	Level 2
Notes	In general, we recommend that you use the Level 2 option.
	Use the Level 1 B/W and Level 1 Color options only if you have
	files prepared in an application which is not fully compatible
	with Adobe’s PostScript Level 2 page description language.

Gamma Correction

This option enables or disables gamma correction for PostScript files. For more information, see chapter 5, “Additional Technical Informa- tion,” in the Reference.

Menu Administration/Emulations/PostScript/Gamma Correction

Choices No—Disables gamma correction

Yes—Enables gamma correction, which adjusts the range of gray levels to give you the best possible image. Gamma correction sharpens overall mid-range contrast while blacks (shadows) and white (highlights) keep their original values. You can use this option to correct gray-scale problems or to accenturate detail for scanned images.

Printer Configuration 4-27