The beeper sounds and an error message is displayed when you leave your originals on the exposure glass after scanning.
The machine repeats 5 long beeps four times.
You can change the beeper setting in the User Tools menu.
When using the standard operation panel
You can change the setting under [Alert Sound: Original left on Exposure Glass] in [General Features]. For details, see "General Features", Copy/ Document Server.
When using the Smart Operation Panel
You can change the setting under [Sound of Less Urgent Level] in the Screen Features menu. For details, see "Screen Features", Connecting the Machine/System Settings.