They are a bit fussy at times.
I have a friend that has a large format (36 inch wide) that he uses to print posters. One day the "factory rep" showed up to do some P.M. and in the process ripped the transfer belt. This was a brand new printer and one of the only ones in the Southern California (L.A.) area. My friend decide that this droid would NEVER come within sight of the printer. It was the printer that was driving his business, and having out of commission for any amount of time meant a loss of BIG BUX! He wasn't very happy.
Unfortunately the printer was on the ground floor, so ladder trick probably wouldn't have worked.