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Leopard Technical Q&As: Printing
Based on the Common UNIX Printing System (CUPS), the Mac OS X printing system supports a wide variety of PostScript and raster printers and offers many advanced features. It also allows printer drivers and applications to present modular and extensible user interfaces, so that developers can take advantage of and extend Apple's interface.

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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
Checking for the Printer Driver (HTML)
Deprecated - DV42: Describes a legacy Mac OS technique avoiding system hangs when using serial drivers on USB systems.
2000-06-19
Generating a Non-Maskable Interrupt (NMI) (HTML) (日本語 HTML)
QA1264: Explains how to generate a non-maskable interrupt (NMI) on modern Macintosh systems.
2008-10-13
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) (日本語 HTML)
QA1195: Distinguishes between the retain counts of an I/O Kit kernel object and its io_object_t user space proxy.
2008-09-24
Tioga PostScript Printing Plugins in Mac OS X 10.2 (HTML) (日本語 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) (日本語 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) (日本語 HTML)
QA1185: Explains why some PDE localizations might not appear in all applications.
2002-10-16