These products are guaranteed to work with your Canon FAX B 840 printer.
The Canon FAX B 840 is a high quality fax machine that supports a very high resolution in faxing the documents from one station to another station in a very less time. The Canon FAX B 840 is a very affordable fax machine that you can purchase easily and also it is very easy to operate and handle. It supports the media storage of plain paper and can store a good number of sheets in the input tray. It ensures that high quality photos and rich text is sent to the destination.