> refused to print my black-and-white document unless I refilled its magenta or whatever Can't have you printing anonymously https://en.m.wikipedia.org/wiki/M

> refused to print my black-and-white document unless I refilled its magenta or whatever Can't have you printing anonymously https://en.m.wikipedia.org/wiki/Machine_Identification_Code https://en.m.wikipedia.org/wiki/Machine_Identification_Code