You can set the default screen displayed at startup.
If the Main Menu is set as the Default Screen at Startup
If [Copy] is set for Default Screen at Startup
1.
Press 
→ [Preferences] → [Display Settings] → [Default Screen at Startup].
→ [Preferences] → [Display Settings] → [Default Screen at Startup].2.
Specify the setting → press [OK].
If [Open Status Monitor/Cancel] is set to 'On', a key to display the Status Monitor/Cancel screen is displayed on the screen after startup.