Xerox DocuColor 2240 Service Manual page 537

83-742 EOR Send or Receive Error
Response sent back with ERR after ECM EOR send; EOR-Q is received at ECM reception.
Procedure
Switch power off then on. Re-try the Fax job. line quality no good.
Status Indicator RAPs
83-742, 83-743
83-743 Destination Receive Error
Receive terminal has no function to receive SUB.
Procedure
Switch power off then on. Re-try the Fax job
09/03
2-504
Initial issue
DC 3535/2240/1632, WC M24