7 Transmission Applications7-44 im7520/im6020Transmission Applications Chapter 77.16 ECM OFFECM OFFTransmission can be made with ECM disabled. Error Correction Mode (ECM)is a mode of transmission with error correction established by ITU-T(International Telecommunications Union). FAX machines equipped with theECM feature can communicate with each other and can confirm that the datasent is free of errors. Thus, communication can be made free fromdisturbances due to line noises, etc. The FK-502 employs ECM fortransmission unless you disable it.0SpecificationsIf there are many line disturbances, the communication time may be alittle bit longer with ECM enabled than with ECM disabled.0Functions incompatiblePolling RX (Normal), Polling TX (Normal), V.34 OFF, Polling RX (Bulletin),Polling TX (Bulletin), Bulletin Board Registration1 Press [Fax] on the control panel to view the FAX screen, if it is notalready displayed.2 Press [Comm. Setting].3 Press [Line Setting].4 Press [ECM OFF].
