Jianming Tsai

Title: Innovations by Inventor Jianming Tsai in Ink Jet Printing Technology

Introduction

Jianming Tsai, an inventive mind based in Schaumburg, IL, is recognized for his contributions to ink jet printing technology. With a total of two patents to his name, he has developed innovative systems designed to enhance the efficiency and performance of ink jet printers.

Latest Patents

Tsai's latest patents reflect his dedication to solving common issues in ink jet printing. His first patent introduces a **cross flow nozzle system for an ink jet printer**, aimed at preventing clogging in continuous jet ink systems. This invention enables a constant flow of ink behind the nozzle orifice during printing, monitored by a pressure sensor that alerts an automatic unclogging system when necessary. The unclogging system utilizes a control circuit to initiate operational cycles, employing one of two modes to adjust pressure in the ink return line as needed.

The second patent, titled **method and apparatus for continuous ink jet printing**, focuses on producing a stream of ink drops with a controlled number of fast satellite drops. This technology allows for the liquid-phase hot-melt ink to be pressurized for a consistent flow to the nozzle. A vibrating nozzle, energized by a rectangular or triangular waveform at a fixed frequency, perturbs the ink flow to create primary drops alongside the satellite drops. Tsai's innovation emphasizes adjusting the harmonic content of the waveform to optimize the formation of a maximum of three fast satellite drops, ensuring high-quality image formation.

Career Highlights

Tsai is currently associated with **Videojet Systems International, Inc.**, a prominent company in the printing and coding industry. His work has significantly contributed to advancements in print technology, underscoring his role as a pivotal figure in ink jet system innovation.

Collaborations

Collaborating with industry professionals like Pietro C. Lostumbo and James E. Clark has allowed Tsai to enhance his designs further. These partnerships exemplify the collaborative spirit often found in technological advancements within the printing sector.

Conclusion

Jianming Tsai's inventive spirit continues to propel the field of ink jet printing technology forward. With his innovative patents, he demonstrates the capabilities of technology to overcome existing challenges in the printing domain. As he continues his work with Videojet Systems International, Inc., his contributions will undoubtedly influence the future landscape of printing technology.