Canon ir2016, ir2020 マニュアル

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Chapter 4  
4-12
Test Menu 1
Test Menu 1 is selected by pressing the 1 key from the Line Detect menu. When CI is detected from the modular jack, the display changes from OFF to
ON and the received frequency is displayed. The on-hook/off-hook state of the handset and the external telephone is also displayed.
Test Menu 2
Test Menu 2 is selected by pressing the 2 key from the Line Detect menu. When CNG is detected from the modular jack, the display changes from OFF
to ON.
Test Menu 3
Test Menu 2 is selected by pressing the 2 key from the Line Detect menu. When CNG is detected from the modular jack, the display changes from OFF
to ON.
4.9 Service Report (REPORT)
4.9.1 System Data List
0011-0452
Use it to check the settings associated with the service soft switch and service parameters.
F-4-5
4.9.2 System Dump List
0011-0453
- System Dump List
Use it to check the history of communications, both successful and error.