Abstract
In the Toner Projection Development(TPD), images are formed, in a non-contacting manner, by mono-component magnetic toner particles which are electrically charged and are transferred to latent images by the effect of alternating electric field.
The TPD has been one of the key technologies in our black and white electrophotographic products, such as process cartridges,
because of its simple configuration and its stability.
Recently electrophotography has been required to be applicable to color and high speed POD products.
In this paper, our recent activities on the improvement of the TPD will be explained, firstly from the viewpoint of both materials and hardware,
with the results of visualization and simulation.
Finally our recent activities on color and POD products will be explained.
The TPD is expected to progress as our key technology because of its simple configuration.
