I'm working on a piece with an arduino.  On a switch press, I want a usb printer to print a single dot on a page (I'll have the images I want preprinted on the paper - all I really want to do is have the printer feed the page, but it has no feed button and printing a dot seemed to be the easiest solution).  I'm a total noob here, and have been searching for days now without joy. All the code I've found seems to relate to serial or thermal printers.  Can someone clarify if it's even possible to control a USB inkjet printer?  I have a Win XP SP2 machine for the project (has to be an older one as it's gonna stay in the gallery with the piece), and I'm working with an Arduino Uno, if that makes any difference.

Any help at all on where to start even would be hugely appreciated.