KX-MB2110RUW, KX-MB2130RUW, KX-MB2170RUW, KX-MB2117RUB, KX-MB2137RUB, KX-MB2177RUB - Panasonic Copying Equipment Service Manual (repair manual). Page 57

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KX-MB2110RUW/ KX-MB2130RUW/ KX-MB2170RUW/ KX-MB2117RUB/ KX-MB2137RUB/ KX-MB2177RUB
6.12.1.
Resist Sensor 
This sensor detects whether a recording paper is at the sensor position. 
When there is a recording paper at the position of the sensor, the input signal of IC300-AF22pin becomes Low level. 
When there is no recording paper at the position of the sensor, the input signal of IC300-AF22pin becomes High level.
6.12.2.
PTOP sensor (Print timing sensor)
This sensor detects whether a recording paper is at the printing position.
When there is a recording paper at the position of the sensor, the input signal of IC300-AA25pin becomes Low level.
When there is no recording paper at the position of the sensor, the input signal of IC300-AA25pin becomes High level.
PI54 : Resist Sensor
Signal (IC300-AF22pin)
A paper exists
Low level
No papers
High level
PI55 : PTOP sensor
Signal (IC300-AA25pin)
A paper exists
Low level
No papers
High level
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