In the E-mail Settings, uncheck the option 'Scan edge to edge'. Perform another Scan to E-mail task and see whether the line disappears. Proceed with the next step if the line remains.
Adjust Background Removal setting.
- A positive (+) adjustment removes more background while a negative (-) adjustment removes less background.
- The more background removed, the more the copy of the original document becomes lighter. Start with +1 and add up as needed until the line(s) disappears while maintaining an acceptable scan quality.
Use a different output format (i.e., PDF, JPEG, TIFF, XPS).
- Should you need to use PDF format, try switching to a different PDF version of the output.
- If issue is only observed when output is JPEG, change JPEG Quality.
Switch to a different Content Type (i.e., Text, Text/Photo, Photo & Graphics).
If your MFP allows it, switch to a different Content Source (i.e., Color Laser, Inkjet, Photo/Film, Magazine, Newspaper, Press, Other).
Retest and if issue persists, then go to step 6.
If the current Resolution setting is 300 dpi, lower it down to 200, 150, or 75 until the line disappears while maintaining an acceptable scan quality.