Canon G3 Error Code List page 116

Chapter 2: Service Error Codes
##306 [ TX ] System error has occurred between the
Cause
• An internal unit is faulty (i.e., CS of the
high-speed modem does not go OFF).
##307 [ TX/RX ] The communication mode is faulty
Cause
• Noise caused the CPU to malfunction.
modem and the main CPU
Remedy
• Correct it by referring to the Service
Manual of the model in question.
Remedy
• Turn off and then on the power.
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