Panasonic KX-FP81BX Service Manual page 154

KX-FP81BX / KX-FP81CX / KX-FP82CX
5. [Paper top Sensor (PS501)]
When the recording paper is loaded on the print head, the shelter plate shuts the sensor light, and the photo transistor becomes
OFF. The input signal of IC501-44 pin becomes a high level. Usually, the shelter plate is lifted, the photo transistor becomes
ON, and the input signal of IC501-44 pin becomes a low level.
6. [Motor Position Sensor (SW102)]
This sensor is a detection switch for recording the position of the CAM.
Set recording paper
No recording paper
Home position
Other
Photo transistor Signal (IC501-44 pin)
OFF High level
ON Low level
Signal (IC501-21 pin)
Low level
High level
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