ok please get to your control panel in your xp system.. look for System" now. click it and once you have it up select "devices or device manger" now
when it opens look closely at your list .. any yellow marks? indicating descrepencies... ? also i would like for you to check your cables... also if your printer is listed inside your device manger ... remove it.. thats right uninstall it rigtht ther.. now. reboot and make sure printer is on and plugged into your tower there... see if your system re detects the printer.. it should after uninstalling it.. what will this do? well operating systems are kinda wierd.. but try this first good luck
I have two HP 3820 printers, one of which has quit working. The yellow and green lights are blinking, but there is no paper jam. I can run paper through with no problem. I have cleaned the cartridge docking area which was pretty messy and have cleaned all accessible metal parts with alcohol. When I lift the lid the cartridges stay on the right side and only brute force will move the cradle, but when I turn the machine on the cartridge cradle moves normally and sits in the proper right side position. I have also reloaded the drivers and have searched with no luck for signs of a broken part. Before I scrap it are there any other things I can try?

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