** Description changed: Printers conforming to the new IPP Everywhere standard (of the Printing - Working Group, PWG, are starting to come onto the market. These printers - are capable to inform the clients computers about all their capabilities - (paper sizes, resolutions, finishers, ...) via IPP and understand known - standard page description languages (always PWG Raster, but can also - understand PostScript, PDF, JPEG, and/or PCL). So no drivers for these - printers are needed. With CUPS, cups-filters, and one of Ghostscript, - Poppler, or MuPDF they are fully supported. + Working Group, PWG, http://www.pwg.org/) are starting to come onto the + market. These printers are capable to inform the clients computers about + all their capabilities (paper sizes, resolutions, finishers, ...) via + IPP and understand known standard page description languages (always PWG + Raster, but can also understand PostScript, PDF, JPEG, and/or PCL). So + no drivers for these printers are needed. With CUPS, cups-filters, and + one of Ghostscript, Poppler, or MuPDF they are fully supported. Yakkety is intended to support them, but getting my hands on an IPP Everywhere printer (which takes PWG Raster as inpout format) I have found some issues: - CUPS selects a filter chain using MuPDF but MuPDF is not installed by default. - In contrary to CUPS Raster, PWG Raster contains a full page bitmap of the page, including the unprintable margins. Margins in the header are set to zero. - Filter chains could send CUPS Raster instead of PWG Raster. - Printed pages are not logged in /var/log/cups/page_log. All these issued are fixed in cups-filters 1.11.5 and in a patch to Ghostscript (already upstream). This bug report is for an SRU for Yakkety to fix the issues also there. + + [Impact] + + With "CreateIPPPrinterQueues Yes" set in /etc/cups/cups-browsed.conf IPP + Everywhere printers are discovered in the network and automatically set + up but they only print if mutool (package mupdf-tools) is installed. + This leaves users with non-working print queues. + + [Testcase] + + Set "CreateIPPPrinterQueues Yes" in /etc/cups/cups-browsed.conf and + restart cups-browsed. If an IPP Everywhere printer is in the network, it + will be detected but you cannot print on the auto-generated queue. After + installing the mupdf-tools package printing works. + + With the fixed cups-filters and Ghostscript installed mupdf-tools is not + needed. Jobs get filtered via Ghostscript and printing on the IPP + Everywhere printer works. + + [Regression Potential] + + Small, as changes in the filter chain only happen if PWG Raster is + involved and this happens only with IPP Everywhere printers. Only the + output of PWG Raster and not of any other format is modified.
** Changed in: cups-filters (Ubuntu) Importance: Undecided => High ** Changed in: cups-filters (Ubuntu Yakkety) Importance: Undecided => High ** Changed in: ghostscript (Ubuntu) Importance: Undecided => High ** Changed in: ghostscript (Ubuntu Yakkety) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1637583 Title: PWG Raster printing on IPP Everywhere printers not working correctly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/1637583/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
