Randy S Johnston

Title: Innovations of Randy S Johnston

Introduction

Randy S Johnston is an accomplished inventor based in Burnsville, MN (US). He has made significant contributions to the field of thermal printing technology. His innovative approach has led to the development of a unique method for calibrating thermal print head printers.

Latest Patents

Randy holds a patent for a "Thermal print head calibration and operation method for fixed imaging." This method calibrates a thermal print head printer with fixed imaging elements to achieve consistent high-resolution output. It includes a means for measuring a common characteristic of each fixed imaging element and storing the values for print head compensation during the printing process, one scan line at a time. The method employs error diffusion to ensure appropriate drive levels are supplied to each fixed imaging element, regardless of inherent differences, thus achieving consistent tonal image quality. In a preferred embodiment, the fixed imaging elements are thin film electrical resistive elements, with the common characteristic being the electrical resistance of these elements.

Career Highlights

Randy has dedicated his career to advancing printing technology. His work at Lasermaster Corporation has been pivotal in enhancing the performance and quality of thermal printing systems. His innovative methods have set new standards in the industry.

Collaborations

Randy has collaborated with notable colleagues, including J Mark Gilbert and Danny James Vatland. Their combined expertise has contributed to the success of various projects within the company.

Conclusion

Randy S Johnston's contributions to thermal printing technology exemplify the spirit of innovation. His patented methods have significantly improved the quality and consistency of printed outputs. His work continues to influence the industry and inspire future advancements.