Scanner Unit (Only MF Models) 
 
SM  4-23  M0C3/M0C4/M0C5/M0C6/M0C7
 
and 
5.  Remove the spring [A] and the guide plate [B], and then lift the scanner unit while in the 
wide-open state. 
 
6.  Remove the ADF unit [B] (ADF/ARDF Unit (Only MF Models)) and the operation panel unit 
[C] (Operation Panel Unit) from the scanner unit [A].