Fixed: Canon Error Code 801 Scan To Email If the Canon Error Code 801 Scan To Email occurs when you try to perform the Scan to Email function on your Canon printer, it might be due to the following reasons. ● A timeout error could have occurred while the printer was communicating with the SMTP server. ● Due to an incorrect destination. ● An error on the server side during transmission to the file server. ● Sending the file to destination for which you do not have write permission. ● Specifying an incorrect folder name or password.