At a previous job we had a couple of 980s, we also had about 5 ion
deposition printers in the same room.  The printers we good at spewing toner
which eventually go all over (and into) everything in the room.

Including the filters in the 980s.

The amount of conductive toner in the filters got so bad once that a sort
circuit was created and the tone in the filer ignited with a "whoosh" of
fire shooting out of the system.

The 980 didn't flinch.

 -- Evan