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 Expert  725172

Expert in Laser Printer Engine Development and Reliability Testing (Design Normal and Accelerated Life Test)


Available for your Consulting and Expert Witness Needs

California (CA)
USA
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

He has experience of designing quantitative accelerated life test plan, conducting accelerated life test at higher than normal stress levels and using software test programs to extrapolate the test data from higher stress levels to normal stress levels to predict reliability and life of components, subsystems such as fuser, toner cartridge, charge roller, etc. From this accelerated life testing, the reliability and life data of the components/subsystems can be obtained quickly. Based on the reliability data of the subsystems, the reliability and life of the system can be predicted using Reliability Block Diagram test tool. From this " Design Approach", all the components and subsystems have to meet the design target before the system is built. This approach is effective when used in the short development cycle and can save time and money. The final Quality Assurance test is only used to verify the system reliability, but not to uncover failures.He has experience in laser printers (mono and color) toner cartridges re-manufacturing.
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accelerated testing

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highly-accelerated life testing

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reliability

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reliability test

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reliability testing

The stress parameters include temperature, humidity, voltage, vibration, thermal cycling, etc.
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accelerated thermal life testing

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hermeticity testing

By using the program test tools, the reliability, failure rate, failure distribution, mean life, BX life, acceleration factor and warranty can be obtained.
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failure distribution

He also designs the test plan ( reliability test plan) based on the target specification for life test of the system using Weibull analysis.
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life testing

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product reliability plan

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quality reliability plan

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reliability plan

Mean print between failure (MPBF) can be determined from the life test data.
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mean time between failure

During or after completing accelerated life test or normal life test, reliability analysis can be performed.
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reliability analysis

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quality reliability

When performing accelerated life test, if the acceptable quality level ( Reliability target or specification)of the components or subsystem is not met, the component or the subsystem has to be re-designed and re-tested until the acceptable quality level is met.
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acceptable quality level


Show Secondary and Basic Areas of Expertise
Localities:
Expert may consult nationally and internationally, and is also local to the following cities: Phoenix, Arizona;  Tucson, Arizona;  Mesa, Arizona;  Glendale, Arizona;  Scottsdale, Arizona;  Chandler, Arizona;  Tempe, Arizona;  Gilbert, Arizona;  and Peoria, Arizona.

Education:
Year   Degree   Subject   Institution  
1971   MS   Chemistry   University of Massachusetts at Amherst  

Work History:
Years   Employer   Department   Title   Responsibilities

2007 to

 

(Undisclosed Consulting Company)

 


 

Consultant

 

He set up an independent consulting services in 2007 which provides services in the areas of laser printer engine development and reliability tests

2006 to 2007

 

Samsung

 

Printing Division

 

Principal Engineer

 

He was responsible for designing/conducting preliminary engine test on prototype engines , quantitative accelerated life test for engine components/subsystems and system life and reliability.

1985 to 2005

 

Xerox Corporation

 

Print Engine Development

 

Consulting Engineer

 

He worked in research & development and reliability test in the areas of laser printer (Color and Mono), acoustic ink printer and thermal ink jet printer.


Career Accomplishments:
Associations/Societies

Member of IS&T (Image Society and Technology)


Publications:
Publications and Patents Summary

He has 20 US patents

Selected Publications and Publishers  
 - International Conference on. Imaging Science and Hardcopy / IS&T  

Consulting Services:
Selected Consulting Examples:
  • Analysis of cleaner-less toner cartridge
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 color printer cartridge expert for Brother printer class action suit.
  • Laser printer expert for consulting on laser printing process.
  • Expert in expert witness in a patent litigation involving toner cartridges.
  • Inkjet printer expert for consulting on inkjet printer ink consumption.
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.

International Experience:
Years   Country / Region   Summary
2006 to 2007   South Korea   He was responsible for designing/conducting preliminary engine test on prototype engines , quantitative accelerated life test for engine components/subsystems and system life and reliability.

Language Skills:
Foreign Language   Description
Chinese   He is proficient in Chinese

Additional Skills and Services:
Training/Seminars

Seminar " Overview of Laser Printing Technology"

Other Skills and Services

Using software tools (programs) to determine life and reliability of components/subsytems and predict life and reliability of the system


 

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