QMS 4032 Specifications download pdf (Page 146)

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You can change screen frequency by selecting the halftone type in the QMS 3260/

4032 configuration menu, through your application, or by using the PostScript set-

screen operator.

The extra gray levels available through higher resolution provide a smoother shift from

the darkest black to very light grays.

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A screen angle is the angle at which a halftone screen prints. The default screen

angle for your QMS 3260/4032 Print System is 45° at 300x300, and 600x600. This is

the normal angle for black and white printers. Selecting advanced halftone types

menu option will vary the screen angle. You can also change the screen angle through

the PostScript setscreen operator.

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Your printer provides three different options for halftones—basic, standard, and

advanced. The number of gray levels increases by increasing the halftone type setting

and the printer resolution.

»Note:

The default for this menu is Standard. The standard settings are optimized

for performance. The advanced settings are optimized for quality.

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When sending print jobs through the serial and parallel protocols, some applications

and their printer drivers append an end-of-document command (EOD) to each print

job to ensure that each file prints correctly. The reason for this is that some protocols

and print queuing systems send print jobs to the printer as one continuous data

stream (one print job immediately following another).

But the problem with this system is that some applications are limited by the printer

language and are unable to produce an EOD command. This becomes even more

problematic when you’re printing to a QMS 3260/4032 Print System, where print jobs

of all supported emulations can be received simultaneously. ESP technology

examines the first part of each print job to determine its emulation. Once the emulation

is identified, the print job processes without further checking. This minimizes any

slowdown resulting from the sensing process. To help ESP technology determine the

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QMS 4032 Specifications Page 146