Lingappa K. Mestha

Toward a control oriented model of xerographic marking engines

This paper presents some preliminary results from a research collaboration concerning the modeling and control of color xerography. In this first communication of our work, we describe our efforts to develop a model for a monochrome marking engine. We adopt the technique of principal component analysis for choice of output coordinates and demonstrate preliminary experimental evidence suggesting that this procedure yields accuracy in data reconstruction superior to present industry practice. Preliminary analysis of the experimental evidence suggests that the process has a nonlinear component that we seek to model using a mixture of physical and empirical insight.

Control elements in production printing and publishing systems: DocuColor iGen3

The integration of computing, imaging, marking and controls technology has created digital color printing and publishing systems: office and production, capable of printing documents consistently anywhere anytime. New functionalities in printing and publishing systems are leading to improved services and productivity. Control systems play critical roles. This paper is an introduction to key elements of the end-to-end publishing system and to new breakthroughs in printing due to the application of modern controls principles and methods.