Xerox DocuColor 2240 Service Manual page 530

83-728 Phase C EOL Time-out
EOL cannot be received within 10 sec.;
Normal line cannot be detected in 1min from the start of receiving image information in G3;
EOL cannot be detected for 13 sec. (Default) while image information is being received in G3.
Procedure
Switch power off then on. Re-try the Fax job
Sender side failure; line quality no good; SC board (modem) failure; NCU board failure.
Initial issue
DC 3535/2240/1632, WC M24
83-729 Carrier Down Detected
Carrier is down. T2 Time-out after carrier down while receiving image data.
Procedure
Re-try the Fax job
09/03
2-497
Status Indicator RAPs
83-728, 83-729