We've got the following printer setup:
Driver: Brother MFC-L9550CDW-AirPrint (color, 2-sided printing) Connection: dnssd://PRINTER._ipp._tcp.local./?uuid=e3248000-80ce-11db-8000-30055c4b125b Defaults: job-sheets=none, none media=iso_a4_210x297mm sides=one-sided
This information comes straight from CUPS. In there I tried to "Set Default Options" for that printer. What does work out but, I changed the "Color Mode" to "Grayscale". Unfortunately the default preset remains like it was (the Black & White checkbox doesn't get checked).
What am I doing wrong? How can I change the default printer preset or default printer settings to be Black & White?
So yea... this doesn't work.