When you encounter the"Fax Partially Sent" error, it indicates that certain pages of your documents haven't been successfully transmitted. This issue is often tied to communication lines, where disruptions or anomalies along the connection path to your recipient lead to such errors. This might be caused by factors like interference, disturbances, or problems with the recipient's local telecommunication lines or their fax machine.
To prevent "partially sent" errors in your transmission and increase the likelihood of success, you can break down your document into fewer pages (5 to a maximum of 10 pages per file) and fax each file separately.