I have a very strange problem. A customer called me last week, the machine has an SC 870 (Adress book Error), no other problem. I asked for the counter and he said "zero"....., first i thought he was kidding, he prints out the counter and send it via fax.....the counter was really "Zero", no serial number, no support phone number, nothing!!!....The machine works fine, till this morning...the customer calls me and the counter is again "zero"!!!.