This document describes the features and characteristics of the EFS series Surface Potential Sensors. This voltage sensor is a feedback type sensor that supports improved image quality in next-generation color printers. It is constructed using TDK's unique, high-precision, and highly stable detection circuit, which feeds the measured photosensitive drum surface potential back to the electrical field density control chopper and probe shield cover. The output of this sensor is highly precise and stable, and is almost unaffected by temperature fluctuations or probe spacing. It greatly reduces the adverse effects of electrical disturbances between the photosensitive drum and the sensor electrode.
The TDK EFS series consists of feedback-type surface potential sensors designed to support improved image quality in next-generation color printers. These sensors utilize a unique detection circuit that feeds the measured photosensitive drum surface potential back to the electrical field density control chopper, ensuring highly precise and stable output unaffected by temperature fluctuations or probe spacing.
| Response time (typical) | 11ms |
|---|---|
| Output variation | ±0.05V |
| Operating temperature range | 0 to +50°C |
The typical response time is 11ms.
It uses a unique feedback circuit to limit detector output fluctuations to less than ±0.05V.
They are used for surface electrical potential measurements in equipment like copiers and laser printers.