Arduino Board as HP-IL device?

[HP-Collection]

Yes, a real missunderstanding.... I wantet to use the case of the HP82163B video interface.....
I'm using the newest sketch, version 14-11-09. Here the displa library was removed by Tobie (Just wondered, what sort of infos was on the output: maybe the actual LIF file with it's content.)
First I wanted to add battery supply by 18650 too, but then I found the solution with the external battery tanks you find everywhere.. They give you 5V and are cheaper