Imaging Technology for lmage Display Device Employing Magnetic Conductive Toner

Abstract

An image display system using toner image was developed. In such system, it is difficult to use photoconductive recording material because of light fatigue. Thus a magnetic stylus recording system was chosen for this display system.
This paper describes characteristics of the recording system using conductive magnetic toner for image display system. Toner particle size and thickness of recording layer influence gamma characteristics strongly. An imaging system which gives sufficient optical density with recording voltage of 30 V was accomplished. Cleaning and toner reusing system are also important for successive image formation. Bias voltage is applied on the cleaner brush to prevent the formation of residual image and background caused by triboelectric charging of imaging sheet.