Defective+Roll+Unit

=The roll unit makes a noise and I get the message "Check Roll Paper unit!" and "Power up again.".=


 * Problem:** When I turn the machine on, it goes through the initilization process, then the roll unit makes a bit of noise and I get the messgage "Check Roll Paper unit!" and "Power up again.".


 * Resolution:** The Canon support tech came on-site. It turns out that there is a loose gear in the roll holder unit. It was held on by a spring, which the technician removed, as it doesn't seem to fulfill any particular purpose. He re-ordered the faulty part, but so far the roll unit works.

=I get "Paper Jam" or "Can't Detect Paper" error every time I try to load paper from the top Tray while Roll Feed Unit is attached.=


 * Solution:** You probably have a defective roll feed unit. This is a common problem for the iPF5000 (has not been reported for iPF5100) described in Known Bugs.