Kyocera ECOSYS M2530dn Operation Manual page 177

Error Code
U03700 Sub address bulletin board reception was
attempted but the other party's machine either
does not have a sub address bulletin board
communication function or there were no originals
in any of the originals transfer boxes (sub address
boxes).
U04000 Specified sub address box is not registered in our-
brand recipient machine, or the sub address does
not match.
U04100 Recipient machine is not equipped with a sub
address box function, or the sub address does not
match.
U04200 Encrypted transmission was canceled because
the specified box is not registered.
U04300 Encrypted transmission was canceled because
the recipient fax is not equipped with an encrypted
communication function.
U04400 Encrypted transmission was canceled because
the encryption key does not match.
U04401 Encrypted transmission failed during dialing
because the encryption key is not yet registered.
U04500 Encrypted reception was canceled because the
encryption key does not match.
U05100 Transmission was canceled because
communication requirements are not met due to
the transmission restriction set on this machine.
Check with the recipient.
U05200 Reception was canceled because communication
requirements are not met due to the reception
restriction set on this machine.
U05300 Reception was rejected by the recipient because
communication requirements are not met due to
the reception restriction set on the recipient
machine. Check with the recipient.
U14000 Reception to the Sub Address Box was stopped
because there is no more free space in the
memory of this machine. Create free space by
outputting the data stored in the memory, or
cancel the reception to the Sub Address Box.
U14100 Transmission to the Sub Address Box or sub
address box on our-brand recipient machine was
stopped because there is no more free space in
the memory of the recipient machine. Check with
the recipient.
Possible Cause/Action
Appendix-13