The intermediate transfer belt for electrophotography is an important component which affects the image quality. To express the transfer function of the belt, it is required to stably control its electrical characteristics. Conventionally, it has been difficult to observe the state
of the Carbon Black (CB) dispersed all over the cross-section of the intermediate transfer belt with a wide field of view using an electron microscope while keeping high resolution. This time, therefore, as a new technology for observation, we have introduced confocal fluorescence microscope
which is used for biological sample observation and succeeded in observing the CB dispersion state in Poly Vinylidene di Fluoride (PVDF) as a scattered image. Based on this image we quantified the CB dispersion state using the quadrat method and as a result, we confirmed a good correlation
in the electric characteristics of the belt. In this report, we will confirm the effectiveness of the new technology for observation and quantitation to visualize the CB dispersion state in the composition where electro conductive CB has been dispersed in PVDF. Furthermore, we will discuss
the relation between the quantified CB dispersion state and the electric characteristics of the belt.