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KX-MB2061CXB/KX-MB2061CX2/KX-MB2062CXB
6.14.8. Document Sensor
This sensor detects whether a document is set in ADF or not.
When a document is set in ADF, the shelter plate closes the sensor light.
So the photo-transistor turns off, and input signal of IC300-AF23pin becomes high level.
When a document is not set in ADF, the shelter plate lets the sensor light pass.
So the photo-transistor turns on, and input signal of IC300-AF23pin becomes low level.
6.14.9. Top Cover Sensor
The Switches detect whether the top cover is open or closed.
When the top cover is closed, the switches turn ON, and the input signal of IC300-W25pin becomes a low level.
When the top cover is open, the switches turns OFF, and the input signal of IC300-W25pin becomes a high level.
Photo-transistor
document exists
OFF
No document
ON
Switch
Open
OFF
Close
ON
Signal (IC300-AF23)
High level
Low level
Signal (IC300-W25pin)
High level
Low level
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Troubleshooting
