1 May 1992 Development of trilevel xerographic images
Author Affiliations +
Abstract
One exposure, trilevel xerography provides a novel means to produce, single pass, highlight color prints. In this scheme, a ROS creates an imagewise three level, unipolar latent image in which the color information is encoded in the discharge level. The highest charge regions represent one color, and the lowest charge regions a second color. An intermediate charge level, approximately midway between the high and low charge, serves as the background reference and is not printed. The components of the composite two color latent image are developed sequentially using charged area and discharged area development and bipolar developers. Electrostatic transfer is enabled by converting the developed bipolar image to a unipolar image using a pretransfer charging step. Because of the nature of the latent image, a trilevel development system must satisfy demands substantially beyond those required in conventional xerography. This paper will discuss these requirements.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. G. Parker, "Development of trilevel xerographic images", Proc. SPIE 1670, Color Hard Copy and Graphic Arts, (1 May 1992); doi: 10.1117/12.2322268; https://doi.org/10.1117/12.2322268
PROCEEDINGS
PAGES


SHARE
RELATED CONTENT

Single-pass highlight color electrophotography
Proceedings of SPIE (May 01 1992)
Materials for laser printing
Proceedings of SPIE (December 29 1993)
Laser Scanning And Recording For The Graphic Arts
Proceedings of SPIE (October 26 1983)
Printing: here and now electronic full color
Proceedings of SPIE (March 29 1996)
Trends In Design Concepts For Direct Exposure Platemaking
Proceedings of SPIE (April 23 1979)

Back to Top