DS80 printer, printing B&W rather than colour

[anfractuosity]

Describe the bug

The DNP DS80 printer always appears to print B&W photographs, rather than colour.

It cuts the paper from the roll fine though, so I'm wondering if some of the default options for the cups driver may be incorrect.

I tried altering the colour model to both RGB and CMY, to no avail.

I also tried both Normal and Best colour precision.

I also tried 'Use legacy dyesub gamma curve'.

(I confirmed the printer does print colour photographs in a Windows virtualbox)

To Reproduce Install printer via CUPS, which is a DS80 dye sublimation printer. Printing via either Darktable or GIMP produce a B&W image, rather than colour.

Expected behavior Printing in colour, when a colour image is printed

System Information:

• Arch Linux

• Darktable

  • CUPS version 2.4.10

  Any pointers, would be most appreciated!

[anfractuosity]

Just attaching a few screenshots too of potentially relevant sections

[anfractuosity]

Just came across - https://github.com/OpenPrinting/cups/issues/421

Using: lpadmin -p Dai_Nippon_Printing_DS80 -o print-color-mode-default=color got it to work correctly for me :)