08-30-2016 08:52 PM
Welcome to the Canon Forums and thanks for your post!
To have a better understanding of your issue, please let everyone know what operating system (Windows Vista/7/8 or Mac OS 10.X) you are using and the software you are using to scan.
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08-30-2016 09:21 PM
Windows 7 The printer is a multi function printer/scanner/fax/copier. When I make copies there is no black vertical line that runs through my copies. However, when I use the ADF the black vertical line runs through the scanned documents.
09-02-2016 01:29 PM
The lines that you are experiencing may be a result of the scan glass being dirty or scratched. The scan glass that the printer uses when scanning from the ADF is located to the left of the larger glass area (platen) when you open the cover. It is the smaller glass strip on the left hand side of the unit.
Spray some glass cleaner on a paper towel and then clean the smaller glass area. Once cleaned, try scanning from the ADF again.
If the issue persists, find more help at Contact Us.