Tech Note

TDK Product Features

Surface Potential Sensors are compact, lightweight, and allow stable operations due to their tuning fork structuring that has been optimized for sensing the surface potential of charged drums.
Dependence on detection distance and ambient environments are eliminated and high-accuracy potential detections are made possible with TDK’s unique feedback circuit that gives the probe parts the same potential as that measured by the sensor.
Compact probes that can be mounted around photosensitive drums.
They are used for MFPs (Multi Functional Printers), the sensing of the surface potential of photosensitive drums for printers, and various other devices.


Nov. 29, 2018
"Products Conforming to European Union RoHS Directive / Product Information Concerning Revised China RoHS" has been updated.
Mar. 19, 2018
FAQ | Added "Sensors and Sensor Systems"
Apr. 12, 2017
“Classifications of Medical Devices” and TDK Products’ Coverage of Those Classes has been released.
Mar. 12, 2017
Release of "myTDK", our membership-based service
Nov. 2, 2016
Product over view: Sensors (Humidity, Surface Potential, Magnetic Toner Density / Quantity, Powder Level / Piezoelectric Toner) are released.
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