According to HP, the printer is not yet supported on Windows 7, so this could well be the answer. The printer is supported by Microsoft's drivers, but as far as I can tell, this is just a basic driver with no frills.
I need to clean and align my ink cartridges because the quality right now is terrible. I've tried installing the Vista x64 drivers, but the setup detects that I'm not running Vista and does not allow me to continue.
I was hoping there is a hack for this, or something similar. If not, I'll just plug it into my Vista laptop.