I probably shouldn't have done this, but back in May I taped the print head on my 3800 in place, put it in the backseat of my car, drove from New York to Halifax, printed there for two months, then taped the head again and put it back in the car, drove to Newfoundland, printed an entire 24-image exhibition, then taped the head once again and drove all the way back to New York, all without any hint of trouble--not even a clog. I'm not a big fellow, and was able to carry the printer 50 yards or so with reasonable confidence. I'm not encouraging you to do the same, but this was my experience, for what it's worth.