Screening

Halftoning - screening frequency

This option specifies the frequency and spot function of the halftoning screens of PostScript and PDF jobs.

Syntax

XPath: /JDF[contains(@Types="Screening")]/ResourcePool/ScreeningParams/ScreenSelector[@ScreeningType="AM"]/@Frequency

Type

Double

Syntax

XPath: /JDF[contains(@Types="Screening")]/ResourcePool/ScreeningParams/ScreenSelector[@ScreeningType="AM"]/@SpotFunction

Type

NMTOKEN

Supported values

If a specified screening frequency is not supported for the resolution of the job, the default screening frequency is ignored.

Example - 125 lpi halftoned job

<JDF Types="... Screening ..." ...>

<ResourcePool>

<ScreeningParams Class="Parameter" ID="ScreenID" Status="Incomplete">

<ScreenSelector Frequency="125" ScreeningType="AM"/>

</ScreeningParams>...

</ResourcePool>

<ResourceLinkPool>

<ScreeningParamsLink rRef="ScreenID" Usage="Usage" CombinedProcessIndex="index into Types for Screening">

</ResourceLinkPool>

</JDF>