Option print-color-mode keeps coming back to monochrome

[fujisan43]

We have a Ricoh MP C2504ex color printer and it used to print in color from any of our Fedora desktop.
But now, I have to set option print-color-mode to color as root to be able to print in color.
I'm using command lpadmin -p ricoh -o print-color-mode-default=color to set that option and command lpoptions show then the correct value of print-color-mode.
And as soon as the print is done, that option is automatically reset to monochrome. I have to run the above command every time some want to print in color.
Is this related to issue 451?

[zdohnal]

Hi @fujisan43 ,

thank you for reporting the issue!

None of the PRs related to color regressions haven't been backported to Fedora yet, so the PR #451 isn't causing this behavior, however it can be other use case (similar as #421 ) which is broken - it depends on your setup.

I've checked that your device supports AirPrint - it would be great if you shared output of:

$ lpstat -a
$ lpstat -e
$ lpstat -v

, took your ppd file if any from /etc/cups/ppd, added .txt suffix to it and attached it here.

[fujisan43]

Here are the output of the commands you asked:
ricoh.ppd.txt

$ lpstat -a
ricoh accepting requests since Mon 03 Oct 2022 07:31:24 PM CEST
 $ lpstat -e
ricoh
$ lpstat -v
device for ricoh: ipp://10.0.21.241:631/ipp

[zdohnal]

@fujisan43 thank you for the data!

I was expecting you have your printer as a temporary or cups-browsed created, so it could explain the disappearance, but it is not the case.

I can reproduce this on my local Fedora 36 - and it is the same issue as #421 - we don't check for CMYK in load_ppd() at scheduler/printers.c when we set print-color-mode from PPD.

[zdohnal]

Closing as duplicate of #421 .