The Paper's Abstract of The 3rd
International Conference on Imaging Science and Hardcopy

 

 

A Novel Quality Mapping Technology for Photoreceptors

 
   

May 26-29,1998
Chongqing China

Dr. Ming-Kai Tse and Dr. John C. Briggs

Quality Engineering Associates, Inc.Burlington, MA 01803 USA

 

  Abstract:
    Two critical factors that affect print quality in electrophotography are coating uniformity and the presence of coating defects in the photoreceptor.  Therefore, in the design of photoreceptors, coating materials must be optimized, and methods must be employed to ensure that the photoconductive coating is highly uniform in thickness and electrophotographic properties and is free from defects.  A family of computerized photoconductor test systems providing a novel electrostatic mapping method for uniformity and defects is now commercially available.  The systems combine conventional measurements such as charge acceptance and photosensitivity with the ability to detect and locate coating defects below 100 microns in size.  The key to the success of this mapping method is the use of a mesurement principle that closely resembles the basic electrophotographic process.  Good correlations have been demonstrated between the test results obtained and the image quality of actual prints.  In this paper, the design methodology, operational characteristics, system performance, and practical applications of these systems are discussed.

 


中国复印科学与工程学会
Reprographic Scientists and Engineers Society of China 
7 Chang-Tu Rd.Tianjin300131,China  Tel:(22)26669189 Fax: (22)26669189 
E-mail: rsesc@public.tpt.tj.cn
.