Comment 2 for bug 2014976

Revision history for this message
Till Kamppeter (till-kamppeter) wrote :

I was able to reproduce the bug with the IPP printer emulation utility ippeveprinter (package cups-ipp-utils).

It is actually 2 bugs: One is that cups-browsed (which automatically creates a CUPS queue for your printer) sends PDF and not Apple Raster to your printer, and your printer is slow on processing the complex PDF format. I have done a fix on the upstream code now that if the destination printer supports both Apple Raster and PDF, the former gets preferred. This way the computer and not the printer renders and rasterizes the PDF input, and the computer has usually a much higher performance for doing this work.

Upstream fix in cups-browsed:

https://github.com/OpenPrinting/cups-browsed/commit/3eb66da

The monochrome output is due to a bug in the PPD file generator for driverless IPP printers. If the printer reports "auto" as default for the color output mode, it selects gray instead of RGB as default. This I have fixed in libppd now:

https://github.com/OpenPrinting/libppd/commit/1934a6c341

These fixes will be included in the next uploads of libppd and cups-browsed.