LaserJet Printing

Hello HP Support! I recently moved, and, where I was living before, I had 5 other roommates. So, naturally, since we all shared an internet connection, I configured my printer in such a way that it only permitted print jobs from my IP address on that network, and I password protected the configuration page of the printer so that nobody could tamper with it, just to be sure. I however moved, and did not have the foresight to undo this configuration beforehand (which I doubt I would have been able to anyway, considering what I'm about to say). Needless to say, my printer will not connect to the wireless network here due to the current configuration it has. No big deal, just go to change its configuration, right? Wrong. I re-discovered the fact that I had put an administrator log in to configure practically everything on this printer, and I seem to have completely forgotten my log in credintials. I really need some kind of way to reset the device completely to remove the administrator log in. I was browsing the forums before, and saw such a thing called a semi-reset? I'm not certain, but I believe that is what I need to use my printer again. Please help!