My SS4000 is constantly going through a scan cycle, even without a holder in. I've tried putting holders through a number of times with the machine off, as suggested in the support website. I also ordered the free sensor cleaning brush that David Hemingway sent a message about the other day, but the rep said that I would probably get in in 10 to 14 days, though she would try to expedite without guarantees. Is there anything I might try to solve the problem more quickly? (Might there even be a kind soul in New York who has this item who might lend it to me?) Thanks for any suggestions. John M.
