[Bug 1971242] Re: printing PDF appears always grey, no color

[Ian Gordon]

I suspect this problem is caused by this issue
(https://github.com/OpenPrinting/cups/pull/500) that is fixed in cups
where the option print-color-mode is set to monochrome when the printer
PPD file has ColorModel: CMYK and not ColorModel: RGB (Our Ricoh C4500
uses CMYK as its ColorModel: CMYK)

We were trying to use

lpadmin -p <printername> -o print-color-mode-default=colour
lpadmin -p <printername> -o print-color-mode=colour

and this worked the first time we printed to the printer and then it
would reset to "monochrome" which I suspect is caused by this reported
typo: https://github.com/OpenPrinting/cups/pull/687

Cheers,

Ian.

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Title:
  printing PDF appears always grey, no color

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