# FAX related

This section describes the information related to “Reports/Logs”, “Error Codes”, “Service Parameters”, “Basic information”, and “Troubleshooting” based on these information that can be used to solve the problems related to FAX.

Troubleshooting basic steps

Device information required when reporting trouble

• Fax log
• Protocol log
• Fax Function Check Report

Troubleshooting by Fax Function Diagnosis

Troubleshooting from error codes

• G3 fax error code list
  • Remedy for phase A
  • Remedy for phase B ~D
• IP Fax Error Code List

Phone line confirmation mode

• Starting Line Measurement Mode
• Checking Line Measurement Mode each step.

Service parameter_1

• Starting Authentication Mode
• Changing service parameter
• Service parameter list Option channel 1 (CH1)
• Service parameter list Optional channels 2, 3 (CH2, 3)

Temporary save received fax documents

• User Special Mode starting method
• Emergency retrieval of received fax documents (FAX to PC)
• Emergency Retrieval of Fax Received Originals (FAX to Memory)