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Technical Q&As: Printing
The printing system in Mac OS X is based on the Common UNIX Printing System (CUPS). Mac OS X printing supports a wide variety of PostScript and raster printers and offers advanced features such as network job spooling via the Internet Printing Protocol (IPP), PDF and QuickDraw imaging, and high-quality color rendering. The printing system and the device driver subsystem also allow printer drivers and applications to present modular and extensible user interfaces. As a result, developers can take advantage of and extend Apple's interface rather than write extra code to override it.

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Are the Name Registry device tree nodes unique? (HTML)
Deprecated - HW64: Discusses whether Name Registry nodes copied from the Open Firmware device tree are unique.
1999-10-11
Expansion ROM device properties (HTML) ()
HW50: Describes the Open Firmware properties that should be included in a boot device's expansion ROM.
1999-03-29
Generating an NMI Without a Programmer's Switch (HTML) ()
QA1264: Explains how to generate a non-maskable interrupt (NMI) on CPUs without programmer's switches.
2004-04-26
Is the Open Firmware device tree object oriented? (HTML)
HW80: Discusses the object-oriented attributes of the Open Firmware device tree.
1999-11-15
New PPD keywords available in Mac OS X version 10.3 (HTML)
QA1352: Describes the new PPD keywords available for CUPS filters in Mac OS X 10.3.
2004-05-26
Retain Counts of io_object_t Objects in IOKit.framework (HTML) ()
QA1195: Distinguishes between the retain counts of an I/O Kit kernel object and its io_object_t user space proxy.
2002-09-04
SCSIAction and IOSCSIUserClient on Mac OS X 10.2 (HTML) ()
QA1201: Describes migrating to a new API for SCSI Parallel devices starting with Mac OS X 10.2.
2002-09-13
Tioga PostScript Printing Plugins in Mac OS X 10.2 (HTML) ()
QA1085: Why Tioga printing plugins for PostScript printing aren't called on Mac OS X 10.2 and later.
2003-07-14
Why does logging keep my Printer Module from working? (HTML) ()
Deprecated - QA1182: Describes some problems with standard printf logging in a Printer Module on Jaguar.
2002-11-06
Why don't all of my PDE localizations show up in all applications? (HTML) ()
QA1185: Explains why some PDE localizations might not appear in all applications.
2002-10-16