Lexmark International, Inc.

Michael Charles Day

William Paul Cook

Jeremy Keith Payne

Richard Louis Goin

Daniel Lee Thomas

Marc Cousoulis

Darren Adam Keese

Matthew Russell Smither

Wesley David McIntire

David William Shuman

Brittany Nicole Sexton

Bradley Austin Hurst

Michael Richard Turpyn

Casey Matthew Wesley

Kweku Korsah

Jared Kouhui Lin

Charles Russell Schaefer

A toner container for use in an image forming device includes a housing having a reservoir for storing toner, a paddle positioned within the reservoir, and a rotatable drive member positioned to push the paddle in a first rotational direction. The paddle is free to rotate ahead of the drive member in the first rotational direction. A magnet is rotatably coupled to one of the paddle and the drive member. A shield is rotatably coupled to the other of the paddle and the drive member such that the shield is movable between a blocking position for attenuating a magnetic field of the magnet to block detection of the magnetic field by a magnetic sensor and an unblocking position for unblocking the magnetic field of the magnet to permit detection of the magnetic field by the magnetic sensor based on a rotational position of the paddle relative to the drive member.

Toner container having a magnet for toner level sensing

An imaging device has a developer roll to provide toner to a photoconductive drum to develop a latent image on the drum for direct transfer to media or an intermediate transfer member. A power supply in communication with a controller sets relative voltages on the developer roll and drum. During transfer of the toner, the imaging device determines a current between the developer roll and drum. In turn, the controller determines a charge and mass of the toner for setting with the power supply an operating voltage on the drum or developer roll. Preventing and reporting toners with insufficient charge are other embodiments.

Electrophotographic control in imaging devices, including sensing current between a developer roll and drum pertaining to current of a latent image and a paschen breakdown

A sorter processes trading cards in an affordable, accurate, and easy-to-use manner. The sorter includes an input and output bin. A transport path moves cards between the bins and has two scan bars, one above and one below the path. The scan bars capture an image of a top and bottom surface of ones of the cards. A controller coordinates movement of the cards along the path and receives the image for processing. Users interact with the controller by way of an interface to influence the processing. The sorter also includes a coil to detect metal foil on the cards. Other embodiments are envisioned.

Trading card sorter and methods

A system for delivering desired magnitudes of AC power to a load. A three-cycle power mode includes a 1and 3cycle in which either no AC power, or full power, is delivered to the load, and a 2cycle in which an AC switch is triggered at a desired phase angle to deliver the desired increments of AC power during the 2cycle. AC power is delivered in each cycle in a manner to provide a net zero DC offset in the AC current delivered to the load. A two-cycle mode can be achieved by using the 1and 2cycle, or by using the 2and 3cycles to optimize power delivery performance. A multi-cycle power delivery system can employ both the three-cycle and the two-cycle modes together to minimize the harmonic content during delivery of various power levels.

Power control for a printer fuser

The embodiments disclosed herein are directed to methods and devices for a control system to regulate the output voltage of a high voltage power supply (HVPS) in an image forming device. In one embodiment, the HVPS comprises at least two voltage sources connected in series. A print engine controller is configured to disable at least one of the voltage sources when a voltage draw of a load exceeds a maximum differential voltage of the at least two voltage sources.

Dual-range power supply for an image forming device

Growing community of inventors

Lexington, KY, United States of America

Michael Charles Day