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Article View: adobe.postscript.programming
Article #15

Re: How to set linescreen on halftones?

#15
From: Hollister_David
Date: Sun, 18 Jan 2009 00:17
178 lines
8769 bytes
I probably should add I use Mac OS X 10.5.6

I managed to open the Xerox PPD with Textedit. Changed halftone screen frequency from 141 to 65, but my halftones still remain too fine to reproduce well. The words "halftone" and "screens" occur a number of places in the PPD but I don't understand what's going on.

Here's the text of the Xerox Phaser PPD:

* PPD-Adobe: "4.3"
* % Adobe Systems PostScript(R) Printer Description File
* % Copyright 1987-1996 Adobe Systems Incorporated.
* % All Rights Reserved.
* % Permission is granted for redistribution of this file as
* % long as this copyright notice is intact and the contents
* % of the file is not altered in any way from its original form.
* % End of Copyright statement
* FileVersion: "1.0"
* FormatVersion: "4.3"
* LanguageEncoding: UTF-8
* LanguageVersion: English
* Manufacturer: "Xerox"
* PCFileName: "XRX6130N.PPD"
* Product: "(Phaser 6130N)"
* PSVersion: "(3015.103) 1"
* ShortNickName: "Xerox Phaser 6130N"
* ModelName: "Xerox Phaser 6130N"
* NickName: "Xerox Phaser 6130N"
* cupsVersion: 1.1
* cupsManualCopies: False
* APPrinterIconPath: "/Library/Printers/Xerox/Icons/Xerox Phaser 6130N.icns"
* cupsFilter: "application/vnd.cups-postscript 0 /Library/Printers/Xerox/filter/XeroxSecureFilter"
* APDialogExtension: "/Library/Printers/Xerox/PDEs/XeroxSecurePrint.plugin"
* APDialogExtension: "/Library/Printers/Xerox/PDEs/XeroxJobAccount.plugin"
* XRPrinterLanguageEncoding: "UTF-8"
* XRPTUserIDScope: "32, 126"
* XRPTUserIDScope: "160, 255"
* XRPTUserIDLimit: "Char, 1, 8"
* XRPTPasswdScope: "48, 57"
* XRPTPasswdLimit: "Char, 1, 12"
* XRPTDocNameScope: "32, 126"
* XRPTDocNameScope: "160, 255"
* XRPTDocNameLimit: "Char, 0, 12"
* XRJALoginIDScope: "32, 126"
* XRJALoginIDLimit: "Char, 1, 32"
* XRJAUserIDScope: "32, 126"
* XRJAUserIDLimit: "Char, 1, 32"
* XRJAPasswdScope: "32, 126"
* XRJAPasswdLimit: "Char, 4, 12"
* XRJADocNameLimit: "Char, 0, 32"
* XRJAHostNameLimit: "Char, 0, 32"
* XRJADateStringLimit: "Char, 0, 32"
* XRJATimeStringLimit: "Char, 0, 32"
* XRJAUsePassword:

* % === Options and Constraints =========
* OpenGroup: InstallableOptions/Options Installed
* OpenUI *InstalledMemory/Memory: PickOne
* DefaultInstalledMemory: 128Meg
* InstalledMemory 128Meg/Standard 128MB: ""
* InstalledMemory 384Meg/384MB: ""
* InstalledMemory 640Meg/640MB: ""
* InstalledMemory 1152Meg/1152MB: ""
* ?InstalledMemory: " save
    (Unknown) currentsystemparams /RamSize get
    dup 134217728 eq{exch pop (128Meg) exch}if
    dup 402653184 eq{exch pop (384Meg) exch}if
    dup 671088640 eq{exch pop (640Meg) exch}if
    dup 1207959552 eq{exch pop (1152Meg) exch}if
    pop = flush
    restore
"
* End
* CloseUI: *InstalledMemory

* OpenUI *Option2/RAM Disk: Boolean
* DefaultOption2: False
* Option2 False/Not Available: ""
* Option2 True/Available: ""
* ?Option2: " save
  /FXProcs /ProcSet resourcestatus {
    pop pop /FXProcs /ProcSet findresource /currentstorage get exec
    {(True)}{(False)} ifelse
  } {(Unknown)} ifelse = flush
  restore
"
* End
* CloseUI: *Option2

* CloseGroup: InstallableOptions

* % ==== UIConstraints ===============

* % ==== StorageDevice vs Collate ====
* UIConstraints: *Option2 False *Collate True
* UIConstraints: *Collate True *Option2 False

* % ==== PageSize vs MediaType ====
* UIConstraints: *PageSize Env10 *MediaType Stationary
* UIConstraints: *PageSize Env10 *MediaType ColoredPaper
* UIConstraints: *PageSize Env10 *MediaType Prepunched
* UIConstraints: *PageSize Env10 *MediaType Letterhead
* UIConstraints: *PageSize Env10 *MediaType LabelPaper
* UIConstraints: *PageSize EnvMonarch *MediaType Stationary
* UIConstraints: *PageSize EnvMonarch *MediaType ColoredPaper
* UIConstraints: *PageSize EnvMonarch *MediaType Prepunched
* UIConstraints: *PageSize EnvMonarch *MediaType Letterhead
* UIConstraints: *PageSize EnvMonarch *MediaType LabelPaper
* UIConstraints: *PageSize EnvC5 *MediaType Stationary
* UIConstraints: *PageSize EnvC5 *MediaType ColoredPaper
* UIConstraints: *PageSize EnvC5 *MediaType Prepunched
* UIConstraints: *PageSize EnvC5 *MediaType Letterhead
* UIConstraints: *PageSize EnvC5 *MediaType LabelPaper
* UIConstraints: *PageSize EnvDL *MediaType Stationary
* UIConstraints: *PageSize EnvDL *MediaType ColoredPaper
* UIConstraints: *PageSize EnvDL *MediaType Prepunched
* UIConstraints: *PageSize EnvDL *MediaType Letterhead
* UIConstraints: *PageSize EnvDL *MediaType LabelPaper
* UIConstraints: *PageRegion Env10 *MediaType Stationary
* UIConstraints: *PageRegion Env10 *MediaType ColoredPaper
* UIConstraints: *PageRegion Env10 *MediaType Prepunched
* UIConstraints: *PageRegion Env10 *MediaType Letterhead
* UIConstraints: *PageRegion Env10 *MediaType LabelPaper
* UIConstraints: *PageRegion EnvMonarch *MediaType Stationary
* UIConstraints: *PageRegion EnvMonarch *MediaType ColoredPaper
* UIConstraints: *PageRegion EnvMonarch *MediaType Prepunched
* UIConstraints: *PageRegion EnvMonarch *MediaType Letterhead
* UIConstraints: *PageRegion EnvMonarch *MediaType LabelPaper
* UIConstraints: *PageRegion EnvC5 *MediaType Stationary
* UIConstraints: *PageRegion EnvC5 *MediaType ColoredPaper
* UIConstraints: *PageRegion EnvC5 *MediaType Prepunched
* UIConstraints: *PageRegion EnvC5 *MediaType Letterhead
* UIConstraints: *PageRegion EnvC5 *MediaType LabelPaper
* UIConstraints: *PageRegion EnvDL *MediaType Stationary
* UIConstraints: *PageRegion EnvDL *MediaType ColoredPaper
* UIConstraints: *PageRegion EnvDL *MediaType Prepunched
* UIConstraints: *PageRegion EnvDL *MediaType Letterhead
* UIConstraints: *PageRegion EnvDL *MediaType LabelPaper
* UIConstraints: *MediaType Stationary *PageSize Env10
* UIConstraints: *MediaType ColoredPaper *PageSize Env10
* UIConstraints: *MediaType Prepunched *PageSize Env10
* UIConstraints: *MediaType Letterhead *PageSize Env10
* UIConstraints: *MediaType LabelPaper *PageSize Env10
* UIConstraints: *MediaType Stationary *PageSize EnvMonarch
* UIConstraints: *MediaType ColoredPaper *PageSize EnvMonarch
* UIConstraints: *MediaType Prepunched *PageSize EnvMonarch
* UIConstraints: *MediaType Letterhead *PageSize EnvMonarch
* UIConstraints: *MediaType LabelPaper *PageSize EnvMonarch
* UIConstraints: *MediaType Stationary *PageSize EnvC5
* UIConstraints: *MediaType ColoredPaper *PageSize EnvC5
* UIConstraints: *MediaType Prepunched *PageSize EnvC5
* UIConstraints: *MediaType Letterhead *PageSize EnvC5
* UIConstraints: *MediaType LabelPaper *PageSize EnvC5
* UIConstraints: *MediaType Stationary *PageSize EnvDL
* UIConstraints: *MediaType ColoredPaper *PageSize EnvDL
* UIConstraints: *MediaType Prepunched *PageSize EnvDL
* UIConstraints: *MediaType Letterhead *PageSize EnvDL
* UIConstraints: *MediaType LabelPaper *PageSize EnvDL
* UIConstraints: *MediaType Stationary *PageRegion Env10
* UIConstraints: *MediaType ColoredPaper *PageRegion Env10
* UIConstraints: *MediaType Prepunched *PageRegion Env10
* UIConstraints: *MediaType Letterhead *PageRegion Env10
* UIConstraints: *MediaType LabelPaper *PageRegion Env10
* UIConstraints: *MediaType Stationary *PageRegion EnvMonarch
* UIConstraints: *MediaType ColoredPaper *PageRegion EnvMonarch
* UIConstraints: *MediaType Prepunched *PageRegion EnvMonarch
* UIConstraints: *MediaType Letterhead *PageRegion EnvMonarch
* UIConstraints: *MediaType LabelPaper *PageRegion EnvMonarch
* UIConstraints: *MediaType Stationary *PageRegion EnvC5
* UIConstraints: *MediaType ColoredPaper *PageRegion EnvC5
* UIConstraints: *MediaType Prepunched *PageRegion EnvC5
* UIConstraints: *MediaType Letterhead *PageRegion EnvC5
* UIConstraints: *MediaType LabelPaper *PageRegion EnvC5
* UIConstraints: *MediaType Stationary *PageRegion EnvDL
* UIConstraints: *MediaType ColoredPaper *PageRegion EnvDL
* UIConstraints: *MediaType Prepunched *PageRegion EnvDL
* UIConstraints: *MediaType Letterhead *PageRegion EnvDL
* UIConstraints: *MediaType LabelPaper *PageRegion EnvDL

* % ==== LeadingEdge vs PageSize ====
* UIConstraints: *XRMSILeadingEdge
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Path: arc1-ca.pugleaf.net!g2news2.google.com!news2.google.com!news.glorb.com!news2.glorb.com!newshub.sdsu.edu!webcrossing
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From: Hollister_David@adobeforums.com
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Newsgroups: adobe.postscript.programming
Subject: Re: How to set linescreen on halftones?
Message-ID: <59b78950.0@webcrossing.la2eafNXanI>
Date: Sat, 17 Jan 2009 16:17:33 -0800
References: <59b78950.-1@webcrossing.la2eafNXanI>
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