Method for reducing high quality electrophotographic images

摘要

It has been determined that the two systems that contribute to edge raggedness in producing electrophotographic images are the development and transfer systems. Conventional development systems cause wrong sign toner to be attracted to the edges of the formed characters. Conventional transfer systems utilize electrostatic transfer whereby large electric fields are applied across a small air gap. In order to reduce edge raggedness, wrong sign toner is eliminated during the development step by using tribolelectrically charged toner and electrostatic transfer is replaced with non-electrostatic transfer techniques, either thermal or pressure, or combinations thereof. In either event, the resistivity of the intermediate surface is preferably 1010 ohm-cm or lower. Significantly improved electrophotographic images result.