Radf Jam Sensor (Only For Kx-Mb25** And Dp-Mb***); Mpt Sensor - Panasonic DP-MB310EU Service Manual

KX-MB2230EU/ KX-MB2270EU/ KX-MB2515EU/ KX-MB2545EU/ KX-MB2575EU/ DP-MB310EU

6.12.8. RADF JAM Sensor (Only for KX-MB25** and DP-MB***)

This sensor detects the front edge of the document.
When the front edge of the document is detected, the shelter plate closes the sensor light.
So the photo-transistor turns off and the input signal of IC300-AB25pin becomes high level.
When the front edge of the document is not detected, the shelter plate lets the sensor light pass.
So the photo-transistor turns on and the input signal of IC300-AB25pin becomes low level.
This sensor LED is controlled by IC300-M26pin.

6.12.9. MPT Sensor

This sensor detects whether a recording paper is set in MPT or not.
When there is a recording paper at the position of the sensor, the input signal of IC300-AF24pin becomes low level.
When there is no recording paper at the position of the sensor, the input signal of IC300-AF24pin becomes high level.
A document exists
No document
LED control
Sleep
Standby
A paper exists
No papers
82
Signal (IC300-AB25pin)
High level
Low level
Signal (IC300-M26pin)
50% duty
High
Signal (IC300-AF24pin)
High level
Low level