The shutdown functions and their uses are as follows.
Shutdown mode  | Use  | Operation  | 
Normal Shutdown  | Same as shutdown by users.  | Turn the main power switch off.  | 
Forced shutdown  | When normal shutdown does not complete even though you waited a long time.  | Hold the main power switch 6 seconds or longer.  | 
Shutdown for parts replacement  | 
  | Turn the main power switch off while holding down [Stop].  | 
Shutdown for software update  | When you are going to turn on the MFP within 5 minutes for updating the MFP firmware or package. (Use shutdown for parts replacement if you are updating the control panel firmware.)  | Turn the main power switch off while holding down the [EX1] key.  |