http://www.flyertalk.com/forum/showthread.php?t=549679
I would suggest to revise your thread title if your question is more about ink spillage than portability. Portability was addressed in the earlier and still active thread.

I don't carry a printer on the road. At least not yet. So I don't have 1st-hand info to share. However, I would really like to learn from our seasoned FTers who travell with printers as to how they take care the ink spillage problem, if that's ever an issue, just for future reference.