Panasonic KX-FLM652CX Service Manual page 94

KX-FLM652CX
6.6.6.3. CALL SERVICE 3
"CALL SERVICE 3" means that the temperature of the fuser does not rise up to or exceed a constant temperature.
The temperature is monitored with the thermistor inside the fuser and detected with the voltage input into IC 604-21pin.
*When Call Service 3 is occurred, the cause can be distinguished.
Refer to P.83 for details.
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