Canon G3 Error Code List page 149

##621 [ TX/RX ] In a facsimile machine supporting the
Cause
• The line condition is poor, and an error oc-
curred by accident.
• If the error occurs often, the terminal or
the line is faulty.
• If the error occurs at all times, the server is
faulty.
Internet through a provider, a fatal error
(e.g., command error, version error)
occurred during negotiation with the server
Remedy
• Start a communication once again.
• Check the DTMF exchange sound; if trans-
mission/reception is not correct, replace the
system control board.
• Record the protocol on a DAT or MD, and
have it analyzed by the local Canon office
and/or Technical Center.
1. Increase the DTMF transmission level
2. Adjust the DTMF transmission time so
• Contact the provider.
2-89
Chapter 2: Service Error Codes
so that the sever may receive the DTMF
signal correctly.
that the sever may receive the DTMF
signal correctly.