R Lorenzo said:

Yes, you would use an ethernet cable and the ports for each and disconnect the USB connections when you want it to work. What I am doing is temporarily disconnecting the ethernet cable connect (and going offline) and connecting the ethernet cable to the HP m1522nf and doing some scanning. When I’m done, I disconnect the cable and go back online. It seems to be working and I haven’t gotten the error reports after scanning like I did in the beginning . Its seems that this will allow you to get that function from your HP until they develop a better driver that works with Lion. Hope this helps all those affected.

This is if you want to use the scanning and printing function. If you just want to print it is currently working.

via HP LaserJet M1522 Scanning in Lion?: Apple Support Communities.