Hi Lubs1984.
I will be able to assist you.
It is recommended that you download and install the firmware update for the printer. Please click the link that matches your imageCLASS MF620 Series below:
NOTE: The exact model number of your printer will be located on the control panel.
imageCLASS MF624Cw - Drivers & Downloads
imageCLASS MF628Cw - Drivers & Downloads
If you still experience an issue after updating the firmware, please call us at 1-800-OK-CANON (1-800-652-2666) for further assistance.