Ricoh M281 Series Service Manual page 451

6.2.2 SC100 (ENGINE: OTHERS)
SC No. Type
SC195-00 D
SM
Error Name/Error Condition/Major Cause/Solution
Machine serial number error
Comparison of the product identification code in the machine
serial number (11 digits).
The product identification code in the machine serial number (11
digits) does not match.
Re-enter the machine serial number.
6-13
Service Call 101-195
D255/D256/M281/M282