i have a problem on my HP deskjet 810c printer on my windows xp system, when i try to print a document, it feeds the paper normally and after that it pauses for a while then it starts flashing orange light and then when you press the flashing button it prints symbols like "@@@pp00" etc. then ejects the paper. I check already all necessary relations to fix this problem, like * checking LPT1 ports (printer ports) * check normal configuration on the bios (parallel config) * check the driver and reinstall it * check the printer cables * check the printer spooler in control panel * check also cartridges and inks but seems all those things never worked. And what is weired of this is that when i plug in the printer on another computer it prints normally. can someone help me with this problem? thanks in advance.