Panasonic KX-FT21RS - Manual (Page 119)

6.5. SENSORS AND SWITCHES
All of the sensor and switches are shown below.
Sensor Circuit
Location
Sensor Sensor or Switch Name Message Error
Digital SW3 Motor Position ————
Analog SW1 Cover Open and Paper set [CHECK COVER] and [OUT OF PAPER]
SW2 Hook SW ————
Operation Panel PS2 Document Read Position [REMOVE DOCUMENT]
PS1 Document [CHECK DOCUMENT]
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KX-FT21RS