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9-8 OPERATION GUIDE
U01600 A communication error occurred during high-speed reception.
Ask the sender to use a slower transmission speed, then try
receiving the fax again.
U01700
U01720
A communication error occurred during high-speed
transmission. Try sending again.
U01721 A communication error occurred during high-speed
transmission. The recipient’s fax may not support high-speed
reception. If you dialed the number using the address book or
a one-touch key, reduce the transmission speed and try
sending again.
U01800 –
U01820
A communication error occurred during high-speed reception.
Ask the sender to use a slower transmission speed, then try
receiving the fax again.
U01821 A communication error occurred during high-speed reception.
The FAX System may not support this type of high-speed
reception. Ask the sender to use a slower transmission
speed, then try receiving the fax again.
U03000 Polling reception failed because no documents were loaded
in the sender’s FAX System. Contact the sender.
U03300 The other party’s FAX System is compatible with the FAX
System, but polling reception to receive their document failed
because the required passwords failed to match during
password-based communication, when password-based
communication was enabled on their FAX System.
U03400 Polling reception failed because the sender’s password and
recipient’s station ID failed to match. Contact the other party.
U04000 The recipient’s FAX System is compatible with the FAX
System, but subaddress-based confidential transmission to
send documents to their subaddress box failed because the
subaddress box number you entered is not set in their FAX
System.
U04100 Transmission to a subaddress box or other box failed
because the other FAX System does not support subaddress-
based confidential reception.
U04200 Encrypted transmission failed because the other party has
not set up an encryption box.
U04300 Encrypted transmission failed because the other party’s FAX
System does not support encrypted communication.
U04400 Encrypted transmission failed because the encryption keys
did not match.
Error Code Problem and Corrective Action