Specify the destination folder for data. Click Browse..., and then select a folder.
The apple steps that you were showing would be to create a shared folder on your computer that other accounts can access. The destination folder settings would be for how to access the drive/folder over the network. In this situation, I would suggest contacting our support team at 1-800-652-2666. Our agents would be happy to assist with the options on forwarding the faxes and can check what network folders you have available that you can save your faxes to.
Oh yes, I posted the wrong link. This was the actual one I was using:
I attempted to get help from Canon support, but the person I was connected with didn't have experience with Macs and was unable to solve my problem.