I bought this printer and I have been using it on my Windows Vista Desktop computer for quite some time without any problems at all. Then out of the clear blue sky, it just stopped printing, I tried to plug out the usb connection and plug it back in and that would seem to fix it, but even that option only lasted for so long until it stopped printing again. Sometimes I would have to go to the extreme of restarting the computer to get it to recognize that the printer is attached, and as usual, that fix only lasted a very short period of time. I am completely at my wits end with this printer and I am serious planning on throwing it away and buy a new one. But my concern is, is it the printer that is giving the problem of is it the Windows Vista Operating System that is totally messing things up with the printer itself. For the time being, I am stuck playing technician whever it decides to stop working in the middle of the print process, all I can do now it be patient.