From Fedora Project Wiki

Revision as of 16:04, 19 March 2010 by Twaugh (talk | contribs) (→‎Drivers/filters: Backends)

Foreword

Here is some information about how printing works in Fedora, how to diagnose problems with it, and related topics.

Debugging problems

See the How to debug printing problems page for some information about how to diagnose printing problems and what information is needed when filing bug reports.

CUPS

The print spooler used in Fedora is CUPS, the Common Unix Printing System. It is an implementation of IPP, the Internet Printing Protocol.

Drivers/filters

CUPS comes with several drivers itself, but many are provided by other packages including:

  • ghostscript-cups, for input filters converting PostScript into CUPS raster format
  • the hpijs package (from the hplip source RPM) provides both hpijs, the inkjet server (IJS) driver used for "Foomatic/hpijs" drivers; and hpcups, the newer-style raster driver
  • gutenprint-cups provides a raster driver
  • foomatic provides a CUPS filter for using various older-style ghostscript built-in drivers

Backends

Once the job file has been converted to the printer's native format, CUPS backends transfer the job to the printer. CUPS provides several methods for doing this, but some are provided by other packages including:

  • smb from the samba-client package
  • hp from the hplip package
  • bjnp from the cups-bjnp package

Configuration tool

Printer queues are configured using system-config-printer. This package also provides the printer status icon in the notification area, and creates queues automatically when USB printers are connected.