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 Expert  108140

Expert in Electrophotography, Xerography

Available for your Consulting and Expert Witness Needs

Colorado (CO)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

Expert has 30 years of experience in research and development of electrophotographic technology. He holds 14 patents, many in this area, and has had a major impact on dry toning development processes used in copiers. He pioneered the development of a color copier for one of the major manufacturers. He is knowledgeable of all electrophotographic processes including charging, exposure, development, transfer, fusing, and cleaning. He has particular interest in image quality of toner images and the ways to improve this quality. Expert developed a method to reduce graininess in copies by understanding the physics of development and applied this knowledge to a new photoconductor which is now being used in all of Kodak's high speed copiers. He has consulted with numerous clients on electrophotographic problems and has contacts at major universities and with industrial suppliers.

DIGITAL SHORT-RUN COLOR PRINTER. Expert has been studying the new technologies for digital color prints from Indigo, the Xeikon, and the QuichMaster DI. He can advise clients on the best device for their application. Most recently, Expert has been working with the Xeikon DCP-1, which can print in four colors, both sides at 35 pages/minute, and is trained on both operation and service.


color printing


electrophotographic photocopier

Expert has experience with printers that use both lasers and LEDs to write an image on the photoconductive surface in a CAD (charge area development) or DAD (discharge area development). He has extensive experience with both PC drum and film belt machine designs as well as single and dual component development systems.

electrophotographic printer

A significant portion of Expert's career has been devoted to understanding the complex interactions and solving problems involved with electrophotographic systems. Some of the areas he has been involved with include uniformity problems in charging and exposing, improved development in the areas of background, satellites, and carry-out and transfer optimization. He has developed methods to increase gloss in fusing systems and studied methods to improve cleaning of photoconductors. Expert theorized, analyzed, and implemented a very high quality development process that delivers toner more uniformly and at a higher process rate. This development system is used in Kodak's newest copiers and won the first Team Award. By using designed experiments and his extensive knowledge in this area, he has helped resolve many set-point problems.

electrophotographic system

Expert has been involved with electrophotography from the first copier, the Xerox 914, to the present high speed duplicators and laser printers. He has a complete understanding of the technology, its opportunities and limitations. He has developed new technology to improve the quality and reliability of this equipment. He has been directly involved with many projects from early research to market introduction.



electrostatic printing

The recent change from optical to digital printing systems has changed electrophotographic technology. Expert has been involved with this change from "white writers" to "black writers" and can direct efforts to deal with this new direction in the technology.

laser printer

Color copying and printing are emerging areas of hard copy output being driven by the computer revolution. Expert has been involved with color electrophotographic systems from both the process and color theory areas. He was a leading force in the development of a color copier for a major US manufacturer.

color reproduction system


color reproduction

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Denver, Colorado;  Colorado Springs, Colorado;  Aurora, Colorado;  Fort Collins, Colorado;  Arvada, Colorado;  Westminster, Colorado;  Boulder, Colorado;  Greeley, Colorado;  Longmont, Colorado;  and Cheyenne, Wyoming.

Year   Subject   Institution  
1968   Electrical Engineering   Rochester Institute of Technology  
1960   Physics   Brigham Young University  

Work History:
Years   Employer   Department   Title  

1996 to








1996 to 1996




Printing System Division




1995 to 1996


Merlin International



Director of Technology


1993 to 1995


RIT Research Corporation





1993 to 1993


International Imaging Materials Eastman Kodak Company



Senior Product Development Engineer


1989 to 1992


Eastman Kodak Company



Senior Research Scientist (Project Leader)


1985 to 1989


Eastman Kodak Company



Senior Research Scientist (Group Leader)


1981 to 1985


Eastman Kodak Company



Research Associate


Career Accomplishments:

Expert is a member of the Society for Imaging Science and Technology.

Publications and Patents Summary

He holds 14 US patents.

Consulting Services:
Recent Client Requests:
  • Reprographics expert for consulting on toner manufacturing.
  • Web drying expert for consulting on continuous web drying of emulsion adhesives.
  • Aerodynamics expert for consulting on inserter binding application for magazine production.
  • Expert in laser printers for consulting on eliminating toner streaks on paper.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Laser printer expert for consulting on laser printing process.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.


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