hp 1020 printer stopped working

[miss031]

I have an hp system running Vista 32 on 2G of Ram. I have an hp laserjet 1020 that I use only for my computer, and in the middle of the day a few weeks ago I lost connectivity with all of my printers (network and local).

I slowly gained communication with all of them except my hp 1020. I print to it, and the print manager says printing, but nothing happens. I have tried downloading every driver other I can find, but I don't know if its doing any good, because I don't know how to completely uninstall the printer and old driver before proceeding.

It was originally installed with the driver that came with it, but I can't find the disk now. I found the XP driver, because I heard that might help, and actually it did, because before I downloaded and installed that, when I printed, the print manager would say "Error-Printing", but now it just says "Printing" for eternity.

I don't know what happened to just lose all of my printers at once, like maybe I received an update, but now I cannot get this printer to work!
The printer doesn't have a self-test button on it, and I can't test it on another computer, because i apparently don't have the right driver for Vista, or something.

[miss031]

More Info...

I have Windows Firewall shut off, I have since I got the computer, and I am running Zone Alarm, which I haven't updated for a month or two.

I did not install anything new within a few weeks prior. I did change the printer cartridge earlier that day, and I read somewhere that ia defective cartridge might cause such a problem, but I tried another one, and that's not it.

The printer is attached directly to a USB in the computer, no hub, and I tried another cable and another location.