Common UNIX Printing System CUPS provides a portable printing layer for Unix(r)-based operating systems.
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Common UNIX Printing System Description

CUPS provides a portable printing layer for Unix(r)-based operating systems. CUPS provides a portable printing layer for Unix(r)-based operating systems. Common UNIX Printing System has been developed to promote a standard printing solution for all Unix vendors and users.CUPS provides the System V and Berkeley command line interfaces, and uses the Internet Printing Protocol ("IPP") as the basis for managing print jobs and queues. The Line Printer Daemon (LPD) Server Message Block (SMB), and AppSocket (a.k.a. JetDirect) protocols are also supported with reduced functionality.CUPS adds network printer browsing and PostScript Printer Description ("PPD") based printing options to support real world printing under UNIX. It includes an image file RIP that supports printing of image files to non-PostScript printers.A customized version of GNU Ghostscript 7.05 for CUPS called ESP Ghostscript is available separately to support printing of PostScript files within the CUPS driver framework. Sample drivers for Dymo, EPSON, HP, and OKIDATA printers are included that use these filters. Requirements: · ESP Ghostscript · libjpeg · libpng · zlib · HTMLDOC What's New in This Release: · Localization updates (STR #3223, STR #3246, STR #3248, STR #3250) · Documentation updates (STR #3225, STR #3230, STR #3242, STR #3260) · The --with-pdftops configure option did not accept a full path to the filter (STR #3278) · The banner filter did not position the back side image correctly (STR #3277) · The dnssd backend could crash (STR #3272) · The 1284 device ID sometimes contained trailing garbage (STR #3266) · The USB backend returned different URIs for some printers than in CUPS 1.3 (STR #3259) · The scheduler did not do local job-hold-until processing for remote queues (STR #3258) · The scheduler did not try all possible SSL certificates on Mac OS X. · The scheduler did not always remove a file descriptor when using the kqueue interface (STR #3256) · The scheduler did not protect against bad job control files in all cases (STR #3253) · The scheduler did not encode "+" in model names (STR #3254) · The web interface didn't show the default options (STR #3244) · The IPP and LPD backends needed print data before they would do an SNMP query. · Fixed a GNU TLS compatibility issue (STR #3231) · Fixed a HTML error in the add and modify printer web interface templates (STR #3229) · The scheduler did not minimize the number of printer state events that were generated by filter STATE: messages, which could lead to poor performance. · The USB backend on Mac OS X did not cleanly cancel a job. · The network backends now set the connecting-to-device printer-state- reasons value when looking up the address and copying the print data for consistency. · The scheduler now supports the com.apple.print.recoverable-warning reason on all platforms.

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