topic imageCLASS MF656Cdw Registration won't accept serial number in Office Printers https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF656Cdw-Registration-won-t-accept-serial-number/m-p/574878#M30086 <P>I purchased a MF656Cdw color laser printer from Best Buy. When I tried to register it, I got an Invalid Serial Number error. It said that the serial number was not allowed to be sold and registered in the U.S. What should I do?</P> Tue, 18 Nov 2025 17:39:01 GMT VegasBlue 2025-11-18T17:39:01Z imageCLASS MF656Cdw Registration won't accept serial number https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF656Cdw-Registration-won-t-accept-serial-number/m-p/574878#M30086 <P>I purchased a MF656Cdw color laser printer from Best Buy. When I tried to register it, I got an Invalid Serial Number error. It said that the serial number was not allowed to be sold and registered in the U.S. What should I do?</P> Tue, 18 Nov 2025 17:39:01 GMT https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF656Cdw-Registration-won-t-accept-serial-number/m-p/574878#M30086 VegasBlue 2025-11-18T17:39:01Z