I have a very lightly used HL-2280DW laser printer (6 years old) that has lately been giving me a "No paper" message no matter what try to do with the machine. I've changed the paper, cleaned the paper pickup roller, even spent some time talking with a Brother tech yesterday. He walked me through all the diagnostic and troubleshooting steps he had, and I still get a "No paper" message whenever I try to use the printer. Anyone have any ideas that might be helpful? Thanks so much.