Company Filing History:

9 out of 3,024

Lexmark International, Inc.

patents

1 out of 832,680

Other

patents

Years Active: 2008-2021

where 'Filed Patents' based on already Granted Patents

10 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 10955776 - Power control for a fuser of an imaging device (2021-03-23),

2. 10429775 - Thermal control of fuser assembly in an imaging device (2019-10-01),

3. 10095175 - Removing residual toner from end seal regions of a developer roll of an imaging device (2018-10-09),

4. 9800756 - Image forming device with laser scanner unit and memory therefor (2017-10-24),

5. 9699352 - Laser scanning unit adjusting output power of modulated beam using shading information to reduce scan line energy variation (2017-07-04),

6. 8963976 - Method and system for correcting the linearity error in electrophotographic devices (2015-02-24),

7. 8817058 - System and method for reducing scan line jitter in a laser scan unit for an imaging device (2014-08-26),

8. 8111272 - Method for compensating misalignment errors in electrophotographic device (2012-02-07),

9. 8018479 - Method and system for correcting the linearity error in electrophotographic devices (2011-09-13),

10. 7324771 - Method for minimizing temperature droop in a fuser (2008-01-29),

Title: Innovations of John Lemaster

Introduction

John Lemaster is a notable inventor based in Lexington, KY (US). He has made significant contributions to the field of imaging devices, holding a total of 10 patents. His work focuses on enhancing the efficiency and functionality of imaging technology.

Latest Patents

Among his latest patents is a system for power control for a fuser of an imaging device. This invention includes a fuser with a heater connected to a power source via a switch. The controller generates a heater control signal that drives the heater without synchronizing with the zero crossings of the AC voltage. The heater control signal alternates between states to indicate whether the heater should be turned on or off. Additionally, he has developed a thermal control system for a fuser assembly in an imaging device. This system features a heat transfer member with a resistive trace and a controller that selectively applies AC power to achieve precise temperature control.

Career Highlights

John Lemaster has worked with Lexmark International, Inc., where he contributed to various innovative projects. His experience in the industry has allowed him to refine his skills and develop groundbreaking technologies in imaging devices.

Collaborations

Throughout his career, John has collaborated with talented individuals such as Christopher Dane Jones and Fei Chen. These partnerships have fostered a creative environment that has led to the development of advanced technologies.

Conclusion

John Lemaster's contributions to imaging technology through his patents and collaborations highlight his innovative spirit and dedication to advancing the field. His work continues to influence the industry and inspire future inventors.

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