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| == Printing ==
| | {{header|docs}}{{Docs_beat_closed}} |
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| This wiki contains information related to the Cups and System-config-printing provided with Fedora.
| | [[Category:Docs Project]] |
| | | [[Category:Draft documentation]] |
| ===CUPS===
| | [[Category:Documentation beats]] |
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| The version of cups provided with Fedora is cups-1.4 and following are the features in general, Though there are about number of changes <br>
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| {{admon/note|note|Below document provides most used , and most noticeable changes}}
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| ====Web-Interface====
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| *The web-interface has been given a new look , using php-cgi and not php.
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| * THESE ARE TWO SEPARATE THINGS: THE PHP-CGI SWITCH IS JUST A SMALL BUG FIX - Tim
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| *The new interface provides more improvements to add and modify printer configuration
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| *The Administration page provides more advanced operations like share, unshare, provides list of backends to choose from
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| * THE ADVANCED OPTIONS ARE CHOICE OF PROTOCOLS FOR SHARING, MAX CLIENTS, JOB HISTORY ETC - Tim
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| ====IPP Support====
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| *CUPS now conforms to the draft IPP/2.0 and IPP/2.1 specifications
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| *CUPS supports the operation of downloading of files from print job using the "CUPS-Get-Document Operation"
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| *The scheduler and backend discovery interface support a device-location attribute where we can specify the location of the printer
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| *Support of hold jobs and releasing of jobs on hold
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| * THIS IS NOT NEW
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| ====Networking====
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| * CUPS now uses "Bonjour (DNS-SD)" providing mDNS(multicast DNS) which supports Bonjour-based printer discovery
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| ====Scheduler====
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| *Scheduler now supports "authenticated" So that certain actions can be authenticated. Example: The print queues created can set "authenticated"<br>
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| policy using "OpPolicy" parameter in printers.conf, so that jobs can be submitted only after successful authentication.
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| *the default LogLevel is now "warn" instead of "info"
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| *The scheduler now supports a DefaultPaperSize directive to override the default paper size defined by the locale or libpaper configuration
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| *New ErrorPolicy "retry-current-job" is added, that retries the current job immediately
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| *Scheduler supports SSLOptions Directive in cupsd.conf which specifies the network address and port to Listen for secure connections,
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| Loads Server CA certificates
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| *Scheduler now supports new "FatalErrors" Directive to determine which kind of errors are fatal, The following kind of errors are currently recognized
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| none - No errors are fatal
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| all - All of the errors below are fatal
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| browse - Browsing initialization errors are fatal, for example failed binding to the CUPS browse port or failed connections to LDAP servers
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| config - Configuration file syntax errors are fatal
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| listen - Listen or Port errors are fatal, except for IPv6 failures on the loopback or "any" addresses
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| log - Log file creation or write errors are fatal
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| permissions - Bad startup file permissions are fatal, for example shared SSL certificate and key files with world- read permissions
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| Multiple errors can be listed, and the form "-kind" can be used with all to remove specific kinds of errors. The default setting is config.
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| *Scheduler now passes hostname from the job was submitted as "job-originating-host-name" to filters and backends
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| Ex: /var/log/cups/error_log:
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| [Job 3] argv[5]="job-uuid=urn:uuid:b9dd0f4f-5cec-3e25-49b2-09105a802370 job-originating-host-name=dhcp7-229.test.example.com"
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| Scheduler now includes CUPS_FILETYPE, PRINTER_INFO, and PRINTER_LOCATION environment variables that is passed to filter or backend
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| CUPS_FILETYPE which tells the type of the file being printed: "job-sheet" for banner page and "document" for regular print
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| PRINTER_INFO which specifies the description of the printer
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| PRINTER_LOCATION specifies the Location of the printer
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| ====Printer Drivers====
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| *USB printer support; the usb backend now uses libusb when available to allow it to better work with third-party scanning and printing solutions.
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| * NO, WE HAVEN'T ENABLED THAT IN FEDORA - Tim
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| *the cupsPJLDisplay PPD attribute controls the PJL commands used to display the current user and job on the printer.
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| *new generic PostScript and PCL drivers provide improved support for laser printers, the CUPS DDK drivers offer support for many HP DesignJet printers<br>
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| and new label drivers offer support for Seiko and Tharo label printers.
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| * A new CUPS command file filter for PostScript printers provides auto-configuration, self-test page, and status and supply level reporting functions.
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| *The CUPS DDK is now a standard part of CUPS.
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| ====Filters====
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| *the standard image filters now support image files larger than 2GB.
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| *the bundled banner ("job-sheets") pages are now generated using a new banner filter provides easier customization and better support for UTF-8 text.
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| *the pdftops filter has been replaced with a wrapper program that runs the Xpdf, poppler, or Ghostscript PDF to PostScript utilities.
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| * IN FEDORA IT IS CONFIGURED TO USE POPPLER - Tim
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| ===system-config-printer===
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| In this release, system-config-printer uses PolicyKit to control access to restricted CUPS functionality.
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| The following functions are controlled via PolicyKit policies currently:
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| * add/remove/edit local printers
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| * add/remove/edit remote printers
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| * add/remove/edit classes
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| * enable/disable printer
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| * set printer as default printer
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| * get/set server settings
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| * restart/cancel/edit a job owned by another user
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| * restart/cancel/edit a job
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