To my surprise, the printer actually responded to the command from my Windows 10 64 bit system in that it queued up and actually pulled paper through the machine. When the printer finished installing itself, I clicked 'print a test page'. I started out by installing the printer to my system using the HP ColorLaserJet 1600 driver. This is just a general post for anyone who happens to be in the same situation, and is willing to do further experimenting on their end to see if they are able to get it working, but I will jump into what I was able to find. I am on Windows 10 64 bit as well, and have been doing some experimenting and have found a few things that could possibly get this working correctly in more advanced operating systems. I am very surprised that you were able to get this working in an 64 bit version of Windows 7 even. Hello, I wish I had some assistance to offer you.