So that the Community can help you better, we need to know exactly which Canon printer model you're using. To date, we haven't made a model with the name you described. We have, however, made a model called the imageCLASS MF642Cdw and that the 6 may have been misread as a lowercase B. Is this your printer?
That, and any other details you'd like to give will help the Community better understand your issue. If this is a time-sensitive matter, click HERE search our knowledge base or find additional support options HERE.
Thanks and have a great day!