Sanwal P Sarraf

Title: Innovations by Sanwal P Sarraf in the Field of Printing Technology

Introduction

Sanwal P Sarraf, a prolific inventor based in Webster, NY, holds an impressive portfolio of 30 patents. His contributions to the field of printing technology have not only advanced the capabilities of ink-jet printers but have also enhanced the efficiency of laser thermal systems.

Latest Patents

Among his latest innovations is a printer capable of producing continuous tone prints from multi-bit data. This ink-jet printer utilizes multiple nozzles for each color, with each nozzle corresponding to specific bits of the pixel's image data word. The carefully engineered nozzles deliver varying amounts of ink, allowing for a high number of gray levels in prints. For example, the first nozzle can produce 1/256 of the maximum desired density, with subsequent nozzles delivering progressively larger ink volumes. This sophisticated control mechanism enables precise pixel printing as the printhead scans across the media.

Another noteworthy patent involves a combined pulse-width and amplitude modulation of exposing laser beams. This laser thermal system employs a dye donor to create a desired density relationship by modifying the input current waveform supplied to the exposure source. By adjusting the current waveform in an imagewise manner, the system boosts both the efficiency and the speed of image formation, bringing the dye donor temperature near the threshold of dye transfer.

Career Highlights

Sanwal P Sarraf has made significant strides in his career while working at the esteemed Eastman Kodak Company. His dedication to innovation within the printing sector has led to his recognition as a key figure in advancing printing technologies and techniques.

Collaborations

Throughout his career, Sanwal has collaborated with notable colleagues such as Chih-Li Chuang and Andrew Frederick Kurtz. These partnerships have facilitated the development of groundbreaking technologies and patents that contribute to the growth of the printing industry.

Conclusion

Sanwal P Sarraf’s innovative approach and relentless pursuit of excellence in printing technology have positioned him as a leader in his field. With 30 patents to his name, his work not only showcases his expertise but also underscores the importance of innovation in enhancing traditional printing processes.