Panasonic KX-FL612CX Service Manual page 100

KX-FL612CX / KX-FL612CX-S
3:The paper eject sensor is not turned ON although the
fixed time had passed since the paper top sensor was
turned ON.
4:The paper eject sensor is not turned OFF although the
fixed time had passed since it was turned ON.
5:The register sensor (paper top sensor) or paper exit
sensor was turned ON before the motor started to rotate.
6:The register sensor (paper top sensor) chattered.
7:The paper exit sensor chattered.
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