Clean the Original Scanning Area Screen Prompt

To "Settings/Registration Table."
You can use the Display Original Scanning Cleaning Area mode to prompt you to clean the scanning area when the machine detects streaks or stains. If the feeder is not clean, the machine will scan and print dust and grime on the output. The Clean the Original Scanning Area Prompt appears when originals are placed in the feeder. For instructions on cleaning the feeder's scanning area, see "Routine Maintenance" in Basic Operation Guide.
1.
Press (Settings/Registration).
2.
Press [Preferences] → [Display Settings] → [Display Original Scanning Cleaning Area].
3.
Press [On] → [OK].
If you do not want the Display Original Scanning Cleaning Area prompt to appear, press [Off].