topic imageCLASS MF634Cdw Black vertical line on scans, not on copies or prints in Office Printers https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF634Cdw-Black-vertical-line-on-scans-not-on-copies/m-p/571268#M29926 <P><SPAN>I have an ImageClass mf634Cdw and it suddenly has a black vertical line that is printing when I scan a document. It does not show up when I copy or print a page from the computer. What could be causing this? Thanks!</SPAN></P> Tue, 14 Oct 2025 20:06:50 GMT fpmars 2025-10-14T20:06:50Z imageCLASS MF634Cdw Black vertical line on scans, not on copies or prints https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF634Cdw-Black-vertical-line-on-scans-not-on-copies/m-p/571268#M29926 <P><SPAN>I have an ImageClass mf634Cdw and it suddenly has a black vertical line that is printing when I scan a document. It does not show up when I copy or print a page from the computer. What could be causing this? Thanks!</SPAN></P> Tue, 14 Oct 2025 20:06:50 GMT https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF634Cdw-Black-vertical-line-on-scans-not-on-copies/m-p/571268#M29926 fpmars 2025-10-14T20:06:50Z