Canon MF419x User Manual page 757

#018
A fax could not be sent since the recipient's machine did not respond because the line was busy or for
other reasons.
● When the recipient's machine is turned OFF or the line is busy, a fax may not be sent. Ask the recipient to
check the machine status. When sending the fax overseas, insert pauses in the fax number.
Sending Faxes (MF419x / MF416dw)(P. 149)
#022
Sending of a fax from a computer is disabled.
● To send a fax from a computer, you need to set <Allow Fax Driver TX> to <On>. For more information,
contact your Administrator.
Prohibiting PC Faxing (MF419x / MF416dw)(P. 559)
A fax could not be forwarded because the specified destination was deleted from the Address Book.
● Register the forwarding destination again. If the documents that failed to be forwarded remain in
memory, you can forward it again.
Registering in the Address Book(P. 78)
Printing/Resending/Deleting Documents that Failed to be Forwarded(P. 195)
#037
Memory is full.
● If a sending or printing job is queued, wait until the job is completed.
● If a received document is stored to memory, print or delete it.
Storing Received Faxes into Memory (Memory Reception)(P. 188)
● If sending a document with many pages, divide it into multiple sections.
● If sending a fax, reduce the resolution to scan the document.
Adjusting Resolution(P. 167)
#099
Printing, sending, or receiving was canceled.
● When you cancel an operation, this error code is displayed, but this is not abnormal. Print, send, or receive
documents again as necessary.
#401
A scanned document could not be stored to a USB memory device due to insufficient memory space.
Troubleshooting
748