Cups is a printing system supported in Fedora Core3 that uses IPP (Internet Printing Kyoto) to manage print work and queues, but also supports "LPD" (line Printer Daemon) and "SMB" ( Server message Block and communication protocols such as Appsocket.
The advantages of using cups are many:
1. Using IPP to enhance http://www.aliyun.com/zixun/aggregation/32372.html "> network printing function;
2. can automatically detect network printers;
3.Web Interface Setup tool;
4. Support for PPD (PostScript Printer Description) printer files;
5. Support for most printers.
If you want to manage your lprng print system, you can use the graphical interface tool "prinrconf" to maintain the configuration file (/etc/printcap)
In addition, cups-driven development under Linux is governed by the GPL protocol, which means it must be open source. That's not something developers want to do with business development software.
So the printer business driver developed under Linux must be the first to develop a lprng print system driver, and then in the development of the Cups boot program, the cups printing system with its own LPRNG drive. Of course, this boot program is also open source.
CUPS 1.5RC1 Release Notes:
Compile fixes (str #3849, str #3850) The scheduler didn't ' t check for empty values for several revisit (str #3861 Ipptool didn't ' t generate valid XML when a test was skipped. Added additional error checking to the 1284 device ID code (STR #3858) Fixed some compatibility issues USBLP backend to the Libusb backend (STR #3860) Fixed the Wake-from-sleep printing on Mac OS x. The scheduler incorrectly even jobs to is held from a terminating state. The Cups-driverd program could crash when a PPD is renamed. The DNSSD backend took too long to discover printers on SCM or busy NX with the new default timeout used by Lpinfo and the W EB interface. This is resulted in "lost" printers.
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