Cups+Black&white mode

[Hugo Xdy]

Nobody knows this then i am trying the list.

Open up your 127.0.0.1:631, select your printer, go on "set printer
options", on "Output Mode:" you will see a little list with
Color/grayscale...and so on. But NO BLACK&WHITE MODE ! wtf...i don't
want grayscale, it uses some little percent of the colors also, i
checked it. I want black&white mode, but its not there. It exists,
yes. My slackware comes with a cups that brings this mode by default.
It has the same printer, and maybe the same cups version, the version
wouldnt matter because this problem i have since ever, then each
version that comes out should have fixed but didn't.

I want to know what you done to remove that mode from there, and how I
add this again, I want to use only black&white mode as output, please
do not suggest me grayscale. Thanks.