PUNIT
This error code indicates a problem with the printing unit.
Contact your service person.
R_JAM
A paper jam occurred in your machine while it was receiving a fax, and it was unable to receive the entire message in memory.
S_JAM
A document jam occurred in the sending fax machine.
STOP
The Stop key was pressed, ending the communication session.
Communication Codes
Communication codes indicate the communication mode used for a communication.
B.C.
TX
A communication initiated by your machine.
RX
A communication initiated by a remote fax machine.