screen-frequency

Use the halftones attribute to specify the screen-frequency attribute values. (See halftone for more information.) The screen-frequency attribute is supported to maintain downward compatibility, but it is not the recommended attribute for specifying the screen frequency to use for printing halftones.

Indicates the screen frequency, in lines per inch, to use for printing halftones.

DSS

PSF

Type

Resettable, single-valued, per-document

Allowed Values

You can enter one of these fixed values:

  • 71
  • 85
  • 106
  • 141

Default Value

85

Usage Guidelines

  • This attribute is valid only for GIF, JPEG, PDF, PostScript, and TIFF documents.
  • This attribute works only with the document attribute document-ps-processor set to CPSI or with the document attribute document-pdf-processor set to APPE or CPSI.
  • Change the screen frequency if you see moire or two-dimensional repeating patterns in halftone images.
  • Set the screen frequency to 106 if you see dark and light bands in printed output, with halftone images possibly showing a herringbone pattern under magnification.
  • InfoPrint validates and schedules jobs using this attribute against the destination attribute screen-frequencies-supported.
Parent topic: Attributes for documents and default documents