Ding Ya-Jun

Title: Innovations of Ding Ya-Jun

Introduction

Ding Ya-Jun is a notable inventor based in Shanghai, China. He has made significant contributions to the field of electrostatographic printing technology. With a total of two patents to his name, his work focuses on enhancing the efficiency and quality of printing processes.

Latest Patents

Ding Ya-Jun's latest patents include a "Dynamic developer bias control for use in an electrostatographic" and a "Non-linear selectively variable copy contrast adjustment device." The first patent describes a method and apparatus for providing a novel dynamic developer bias control system. This system is designed to determine an optimal developer bias during the processing of the lead edge of an input document. It minimizes the loss of image density for images on the lead edge by varying the developer bias relative to variations in an optical sensor voltage signal. Additionally, it prevents background development in the body of the copy sheet by maintaining a developer bias at an elevated level when certain conditions are met. The second patent outlines an electrostatographic printing apparatus that provides selectively variable copy contrast. This device includes a movable control member and a system for non-linearly variable contrast control, ensuring that the variable copy contrast does not have a linear relation to the control member's displacement.

Career Highlights

Ding Ya-Jun is currently employed at Xerox Corporation, a leading company in the field of printing and imaging solutions. His work at Xerox has allowed him to develop innovative technologies that enhance the performance of electrostatographic printing systems.

Collaborations

Ding has collaborated with notable coworkers such as Xu H Feng and Thomas F Szlucha. Their combined expertise contributes to the advancement of technologies in the printing industry.

Conclusion

Ding Ya-Jun's contributions to electrostatographic printing technology through his patents demonstrate his innovative spirit and commitment to improving printing processes. His work continues to influence the industry and pave the way for future advancements.