Thanks to Burgi, mfp (10 Q's) now has a definition (and some more questions). Unfortunately, whoever originally created the tag opted for cryptic. Suggest making it a synonym of a new tag: multi-function-printer for those who might get brain freeze while looking for the right tag. I'm suggesting using the spelled-out tag as the primary.
Also, we have another existing tag: printer-scanner (22 Q's) which refers to the same thing. So that would also get synonomized with multi-function-printer.