OpenPrinting

We have resources to help with printing under free operating systems like GNU/Linux and the BSDs or under commercial UNIX-like systems such as Solaris and Mac OS X. Looking for configuration or driver help? Try our CUPS Quick Start or look for your printer in the OpenPrinting Database. For more detail, try Till's Tutorial. If all else fails, ask a human in the forums. Researching a printer purchase? Simply browse our database. Looking for software? We host Foomatic, cups-filtersprinter driver packages, and some other programs. Want to help? Here's how.

OpenPrinting is participating in Google Summer of Code 2014

This year we have again many interesting student projects to choose from, especially to implement support for the new IPP Everywhere printer standard which will eliminate the need of printer-model-specific drivers, making printers just work with any operating system. Here is an overview of all our suggested projects on our project ideas list:

  • IPP Everywhere for USB printers: Add IPP-over-USB support to CUPS/Linux
  • Complete IPP Everwhere support of CUPS: rastertopdf filter to accept PWG Raster as input format
  • GTK (GNOME) Print Dialog: Support for driver-less printing on network printers, especially also IPP Everywhere printers
  • PPD Generator for driver-less printing: Poll capabilities from printer via IPP and generate an appropriate PPD file
  • Add MuPDF support to cups-filters for a lightweight mobile printing stack
  • Add printer output backends to MuPDF
  • Improve the pdftopvp filter to not need copying Poppler source code or unstable APIs
  • PWG Job-Ticket backend for libJTAPI (Job Ticket API)
  • Foomatic: Improving the PPD generation capabilities: Option conflicts and printer compatibility classes
  • Modularization of built-in GhostScript drivers into an OPVP driver
  • Vendor WIN32 driver made available to Linux applications
  • Get the cairo color management code upstream

All students who want to do a project with us are asked to apply as described here until March 21, 2014. And as always, we are not limited to the posted ideas, we also accept the student's own ideas. For questions please see the contact info on the ideas list

OpenPrinting Summit 2014 together with PWG Meeting in Toronto, Canada on August 12-15

Our annual meeting, the OpenPrinting Summit is approaching! This time it is held together with the PWG (Printing Working Group) Meeting in Toronto, Canada. We invite again printer manufacturers, developers of Linux printing components as CUPS, Ghostscript, Color Management, desktops, applications, of Linux distributions, ... to plan and discuss on making printing under Linux "just work". This time the sessions are again integrated with the sessions of the PWG, an OS-independent standardization organization for digital printing.

PDF is the standard print job format from CUPS 1.6.x on

All important desktop applications (GTK/GNOME, Qt/KDE, LibreOffice/OpenOffice.org, Firefox, Thunderbird, ...) send print jobs in PDF and not in PostScript any more by default. In addition, a complete CUPS filter chain to process print jobs in PDF is available and used.

CUPS author Mike Sweet/Apple have decided to not include the Linux-specific CUPS filters in the upstream CUPS source any more and we have agreed to maintain them at OpenPrinting. Here we have done some clean-up and have discontinued the filters for the PostScript-centric workflow in favor of the PDF workflow, meaning that the upstream standard for CUPS under Linux (using CUPS plus our cups-filters package) is the PDF-based job processing, letting every non-PDF input be converted to PDF first, page management options being applied by a pdftopdf filter and Ghostscript being called with PDF as input.

Only exception is if the input data is PostScript and the printer is a PostScript printer or the printer driver requires PostScript as input. The we do not turn PostScript into PDF and back into PostScript but pass the PostScript through the pstops filter as before.

Having this workflow we ask all driver developers kindly to not create any PPDs/drivers for non-Postscript printers which require exclusively PostScript. PPD files should at least accept PDF or CUPS Raster now. See also our driver design/packaging page.

More info on our page about the PDF printing workflow and on the cups-filters page.

Making Printing "Just Work" - Volunteers and/or Sponsors needed!

For getting a great user experience with printing there is still a lot of coding needed. Your contribution, either work or funding, is highly appreciated. As we want our work to get a standard, we will let every completed project get into the major Linux distributions, so your work will help a lot of Linux users and will make Linux a better OS.

Enter the amazing world of free software and help fixing bug #1 of Linux.

Currently, we appreciate volunteers/sponsors for these projects:

Vendor WIN32/Mac OS X drivers made available to Linux applications:

Make many more printers working under Linux by creating a wrapper framework for the manufacturer's Windows/Mac OS X drivers, like the ndiswrapper for WLAN cards.

JTAPI implementation: The OpenPrinting workgroup has designed a Job Ticket API (JTAPI) already. You can help us by writing an implementation of this API (libjtapi). We especially also need an implementation of the Printer Working Group: Print Job Ticket (PWG:PJT).

Find more information and contact info on our project implementation page.

We appreciate your participation on these projects.

For Developers

The goal of the OpenPrinting workgroup is to develop and promote a set of standards that will address the complete printing needs of embedded, mobile, desktop, enterprise, and production environments, including management, reliability, security, scalability, printer feature access and network accessibility. This is achieved by

OpenPrinting has merged with the former linuxprinting.org and provides now a one-stop location for printing with Posix-style operating systems. OpenPrinting organizes several meetings throughout the year to bring the important people on the area of printing together. Meetings recently held are:

More for Developers »

Announcements/News

 

database/aboutfoomatic


openprinting.org: Foomatic History

database/basicprintingfaq

 

database/backenderrorhandler


beh - The Backend Error Handler

Very annoying with CUPS is that when an error on the communication between the CUPS backend and the printer occurs, CUPS disables the print queue and to be able to continue printing an administrator (root access required) has to re-enable the queue. It is not enough to simply fix the printer's communication problem (like turning it on, fixing the network connection, ...).

steeringcommittee

database/errorlogfaq

OpenPrinting CUPS Quick Start

For more detail, see the tutorial (beware, it is not yet updated for Foomatic 4.0).

If you have trouble, see the troubleshooting guide.

Implementation - Volunteers and/or Sponsors Needed!

For getting a great user experience with printing there is still a lot of coding needed. See our projects described below. Your contribution is highly appreciated. As we want our work to get a standard, we will let every completed project get into the major Linux distributions, so your work will help a lot of Linux users and will make Linux a better OS.

Enter the amazing world of free software and help fixing bug #1 of Linux.

OpenPrinting

We have resources to help with printing under free operating systems like GNU/Linux and the BSDs or under commercial UNIX-like systems such as Solaris and Mac OS X. Looking for configuration or driver help?

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