My trusty D480 has suddenly started misbehaving. It is directly connected via USB to my Mac mini. The behavior is that it will print a one page document but anything longer than that causes it to pause for 20 seconds then gives 3 beeps and displays a message, "data error". I've tried all the usual checks to no avail. Unplug power, unplug USB from both ends. Totally repeatable. About 2 weeks ago I had a marathon session with a very savvy tech at Apple trying to be able to print from a MacBook via our local network. We reloaded the printer driver with no success. The other strange behavior is when I unplug from wall outlet and replug, it will print a one page document one time. If I try to subsequently print the same one page, it just sits there with no response. Then if I try printing a multi page document, the same 20 second wait followed by 3 beeps.
