Panasonic UF-490 Service Manual page 80

4.3.12. Information Codes: 403, 411, 414, 415 (Polling Operator Trouble)
415
START
Inform the remote side
(receiving side) that their
machine does not have
polling transmission
capability.
END
Polling communication with 4-digit password is not an ITU-T Standard feature.
If the transmitter and receiver are of different manufacturers, polling communication
with password may not be possible.
403, 411, 414
START
Review the polling operation
referring to the Operating
Instructions.
Does the remote side have
polling transmission
capability?
Yes
Is the remote side set to
polling transmission
(Polled) Mode?
Yes
Check the password
between the two units to
ensure it matches.
END
80
No
END
No
Ask the remote side to set
their unit for polling operation.