John H Dodge

Title: The Innovative Contributions of John H. Dodge in Electrophotographic Technology

Introduction

John H. Dodge, an accomplished inventor based in Thornton, CO, has made significant strides in the realm of electrophotography through his inventive prowess. With four patents to his name, Dodge's work primarily emphasizes the enhancement of toner operations and control systems in copiers, showcasing his expertise in digital circuitry and microprocessor applications.

Latest Patents

Dodge's latest patent, titled "System for monitoring and controlling electrophotographic toner operation," utilizes digital circuitry and microprocessor techniques to oversee toner quality in copiers. This innovative system employs patch sensing, where reflectivity signals from both a patch and a clean photoconductor are converted from analog to digital. These signals are then stored and averaged across discrete time periods, enabling precise toner replenishment responses and providing machine failure indicators.

Another noteworthy patent, "Bang-bang dual-mode integral controller with proportional control output," describes a control system adept at measuring the overshoot or undershoot time of a controlled variable against a set value. The invention adjusts a proportional count based on fixed time periods, thus controlling system output proportionally. This patent finds particular application in temperature control for fuser hot rolls, integral components in electrophotostatic copiers, ensuring optimal performance and efficiency.

Career Highlights

John H. Dodge's career is notably highlighted by his role at the International Business Machines Corporation (IBM), where he has channeled his technical expertise into developing cutting-edge technologies for the printer and copier industry. His contributions not only embody innovation but also significantly enhance operational efficiencies and performance standards within his field.

Collaborations

In the pursuit of innovation, Dodge has worked closely with esteemed colleagues including Larry Mason Ernst and Thomas F. Eichhorn. Their collaborative efforts have fueled advancements in the technologies surrounding electrophotography and have paved the way for further innovations within the industry.

Conclusion

With a solid foundation of patents and a career spanning crucial advancements in copier technology, John H. Dodge stands out as a notable inventor in the realm of electrophotography. His contributions significantly influence how copiers operate today, ultimately leading to enhanced performance standards and user experiences.