Abstract
The intermediate transfer belt plays very important roles in the electrophotographic color printer. But, the characteristics of the transfer belt have not been investigated sufficiently. Generally speaking, the transfer belt is treated as the resistance and the capacitance, assuming ohmic conduction model.
In this study, we examine the characteristics of the transfer belt, and the independent roles played by additional transport parameters, including a dielectric constant, carrier density, field dependent mobility, are elucidated.
The dielectric constant is obtained by frequency characteristics in high electric field. The electric circuit that we measured is that a series resistance is connected to the transfer belt. The frequency characteristics of the dielectric constant is decreasing slightly together with the frequency, but is independent on the applied voltages.
Carrier mobility is calculated by the dielectric constant and J-V characteristics, and we have clarified that three carrier transport states exist in the transfer belt. The first state is the ohmic conduction state, the second state is a space charge limited current state where carrier mobility is independent on the field, and the third state is a space charge limited current state where carrier mobility is dependent on the field.
