Dennis D Whitehead

Title: Innovations of Dennis D. Whitehead

Introduction

Dennis D. Whitehead is a notable inventor based in Boise, ID (US). He has made significant contributions to the field of toner technology, holding 2 patents that showcase his innovative approach to solving common issues in the industry.

Latest Patents

One of his latest patents is titled "System for and method of preventing toner leakage past developer seals using static charge." This invention includes a method of sealing a toner supply to a developer sleeve. It involves introducing a static-electric charge on toner particles to create charged toner particles. The invention also induces an attractive charge onto each end of the developer sleeve. The combination of these charges results in toner particles being attracted to the ends of the developer sleeve, creating a barrier of charged toner particles that prevents leakage.

Another significant patent by Whitehead is "Magnetic toner use in a non-contact cleanerless system." This patent describes a non-contact cleanerless system toner cartridge that utilizes an injection charging roller and toner with conductive particles. The invention remanufactures this system into a conventional toner cartridge by removing the injection charging roller and replacing it with a primary charge roller. Additionally, a cleaning blade is added to remove residual toner from the organic photoconductive drum, along with a seal to form a toner waste hopper area. The toner with conductive particles is then replaced with toner containing magnetic particles.

Career Highlights

Dennis D. Whitehead is currently employed at Hewlett-Packard Development Company, L.P. His work has significantly impacted the development of toner technologies, enhancing the efficiency and effectiveness of printing systems.

Collaborations

Throughout his career, Whitehead has collaborated with notable colleagues, including Brenton L. Meyer and Patrick S. Dougherty. These collaborations have contributed to the advancement of innovative solutions in the field.

Conclusion

Dennis D. Whitehead's contributions to toner technology through his patents reflect his commitment to innovation and problem-solving in the industry. His work continues to influence the development of more efficient printing systems.