Patents Assigned to Lexmark International, Inc.
  • Patent number: 11692754
    Abstract: An ice maker includes an ice mold having an inner surface and an outer surface. The inner surface of the ice mold is configured to retain water for forming ice cubes in the ice mold. The ice mold includes a plurality of ice lobes each shaped to form a respective ice cube in the ice mold. A heater assembly is positioned on the outer surface of the ice mold. In some embodiments, each of a plurality of heating elements of the heater assembly is aligned with a corresponding lobe of the plurality of lobes for supplying heat to ice cubes formed in the lobes for releasing the ice cubes from the ice mold. In some embodiments, the heater assembly includes a heater having a ceramic substrate and one or more electrically resistive traces and electrically conductive traces thick film printed on the ceramic substrate.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: July 4, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Jerry Wayne Smith, Russell Edward Lucas, Calvin Dale Murphy, Peter Alden Bayerle
  • Patent number: 11686754
    Abstract: Described is an invention that adds capacitive sensing ability with a single magnetic field sensor location or distributed within an array of surfaces of the sensor. The capacitive sensing can be achieved by modifying a classic Hall effect sensor or putting separate capacitive sensor plates in close proximity to the hall effect sensor.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: June 27, 2023
    Assignee: Lexmark International, Inc.
    Inventors: James Howard Ellis, Jr., Keith Bryan Hardin
  • Patent number: 11681243
    Abstract: A sealing assembly according to one example embodiment includes a housing and an imaging component positioned on the housing. A seal has opposed first and second edges extending along a longitudinal dimension of the seal. A lateral dimension of the seal is perpendicular to the longitudinal dimension and extends in a direction from the first edge to the second edge. The seal is attached to the housing along the first edge and contacts the imaging component along the second edge. Upon attachment to the housing, the seal is elastically deformed from an unassembled state in which the second edge has a first profile that varies in the lateral dimension along the longitudinal dimension to an assembled state in which the second edge is deformed relative to the first profile to a second profile having less variation in the lateral dimension along the longitudinal dimension than the first profile.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: June 20, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Mark William Amann, Richard Louis Goin, Randal Scott Williamson
  • Patent number: 11675290
    Abstract: A reusable media shell has a frame to hold sheets of media in an interior. A removable cap connects to the frame and its manipulation unveils the media for picking by an imaging device. The cap resides on a terminal end of the frame so the frame covers a majority of the media. A lift plate in the interior forces upward the sheets for picking. Two magnets on the frame magnetically secure the frame to magnets in a base of the imaging device and position the sheets in the base. Upstanding walls, a lid and bottom define the interior of the frame. Inserts attached to the walls allow adjustment to accommodate various sizes of the media.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: June 13, 2023
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Edward Lynn Triplett, Kevin Dean Schoedinger, Todd Allison Quinn
  • Patent number: 11676746
    Abstract: A method of making a heater includes an aluminum nitride base having equal to or less than 1% impurities, particularly one embodiment having none of polybrominated biphenyl, polybrominated diphenyl ether, hexabromocyclododecane, polyvinyl chloride, chlorinated paraffin, phthalate, cadmium, hexavalent chromium, lead, and mercury. The base is fired in a heating unit before any layering. Thereafter, on a topside and backside of the base a conductor layer is layered and allowed to settle and dry before firing. Next, a resistive layer is layered on the base from a resistor paste such that the resistive layer connects to the conductor layer on the topside. The resistor paste is allowed to settle and dry and then the base with the conductor and resistor layers is fired. At least four layers of glass are layered next over the resistive layer, each instance thereof including layering a glass, drying the glass and firing.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: June 13, 2023
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Makoto Aoki, Jerry Wayne Smith
  • Patent number: 11666170
    Abstract: A cooking vessel according to one example embodiment includes a food receptacle for holding food during cooking. The cooking vessel includes an inner shell and an outer shell. An outside surface of the inner shell forms the food receptacle. A portion of an inside surface of the inner shell is spaced from a portion of an inside surface of the outer shell forming a sealed volume between the inner shell and the outer shell. A heat pipe is positioned within the sealed volume between the inner shell and the outer shell for distributing heat through the sealed volume between the inner shell and the outer shell. Embodiments include those wherein each of the inner shell and the outer shell includes a respective bottom wall and a respective side wall.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: June 6, 2023
    Assignee: Lexmark International, Inc.
    Inventor: Jerry Wayne Smith
  • Patent number: 11669040
    Abstract: A replaceable unit for an electrophotographic image forming device according to one example embodiment includes an electrical contact positioned on a first side of a housing of the replaceable unit for contacting an electrical contact in the image forming device. A guide on the first side of the housing is positioned closer to a front of the housing than the electrical contact and leads rearward toward the electrical contact. The guide includes an inside surface that faces inward sideways toward a second side of the housing. At least a portion of the inside surface is angled inward sideways from front to rear permitting contact between the inside surface and an electrical connector in the image forming device to draw the electrical connector in the image forming device inward sideways relative to the replaceable unit during insertion of the replaceable unit into the image forming device.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: June 6, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Jeremy Keith Payne, Edward Lynn Triplett
  • Patent number: 11665298
    Abstract: A method of maintaining a time measurement stored on an imaging device. The method comprises: receiving, by the imaging device, a supply item manufacturing time stamp from a supply item connected to the imaging device, comparing the supply item manufacturing time stamp with the time measurement of the imaging device, and updating, by the imaging device, the time measurement of the imaging device, based on the supply item manufacturing time stamp. An imaging device comprising a memory, the memory storing a time measurement, wherein the imaging device is configured to maintain the time measurement by: receiving a supply item manufacturing time stamp from a supply item connected to the imaging device, and updating the time measurement of the imaging device, based on the supply item manufacturing time stamp.
    Type: Grant
    Filed: April 23, 2022
    Date of Patent: May 30, 2023
    Assignee: Lexmark International Inc.
    Inventor: Jennifer Topmiller Williams
  • Patent number: 11656561
    Abstract: A toner container includes a housing having a toner reservoir. An input gear is positioned on the housing for mating with a corresponding output gear in an image forming device when the toner container is installed in the image forming device. A toner agitator is movably positioned in the reservoir. The toner agitator is operatively connected to the input gear such that rotation of the input gear in a first rotational direction causes movement of the toner agitator for agitating toner in the reservoir. An encoded member is encoded with authentication information of the toner container and is operatively connected to the input gear such that rotation of the input gear in a second rotational direction causes movement of the encoded member for communicating the authentication information of the toner container to a controller of the image forming device when the toner container is installed in the image forming device.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: May 23, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Randal Scott Williamson, Virgil Johnson, Jr.
  • Patent number: 11645484
    Abstract: Unique physical unclonable function objects are created by molding pre-magnetized or post-magnetized particles into a resin. The particles form a unique physical “fingerprint” based on the random particle size, position, polar rotation, magnetization level, particle density, etc. This invention addresses devices for accurately measuring the physical fingerprint of a PUF, specifically including the X, Y, & Z components of the magnetic field at enough discrete points on the PUF to allow a confident recognition of the identification. A handheld wand is described for measuring the magnetic field along an arbitrary path.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: May 9, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Scott Richard Castle, Robert Henry Muyskens, Brant Dennis Nystrom
  • Patent number: 11635706
    Abstract: A toner cartridge according to one example embodiment includes a reservoir for holding toner. An outlet is positioned on a front of the toner cartridge for exiting toner from the toner cartridge. First, second and third electrical contacts are positioned on a first side of the toner cartridge for contacting corresponding first, second and third electrical contacts in an image forming device. Each of the first, second and third electrical contacts of the toner cartridge is electrically connected to a respective imaging component positioned on the toner cartridge. The first, second and third electrical contacts of the toner cartridge are positioned such that an imaginary line that angles downward in a direction from a rear of the toner cartridge toward the front of the toner cartridge passes through the first, second and third electrical contacts of the toner cartridge.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: April 25, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Brian Scott Carpenter, Gregory Alan Cavill, Jeffrey Lawrence Tonges
  • Patent number: 11632256
    Abstract: The use of a magnetic particle based “PUF” (Physically Unclonable Function) disk, when read by magnetic sensor(s), as a positional encoder is described. It is often necessary to include a linear or rotary encoder within a device for tracking motor movements, or to enable a closed-loop control algorithm on the motor system. These randomly dispersed magnetic particle disks can be used as a positional encoder, where the speed of movement and the direction of movement may be monitored.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: April 18, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Scott Richard Castle, Gary Allen Denton, Robert Henry Muyskens, Samuel Leo Rhodus
  • Patent number: 11609726
    Abstract: A system includes a spool directory accessible by a mobile computing device and an imaging device. A user selects for imaging on the imaging device a file accessible by the mobile computing device. The mobile computing device saves the file on the spool directory with a unique name Upon the user accessing the imaging device for imaging, the imaging device generates a unique quick response code. The user captures the code with a camera of the mobile computing device and the code is used by the mobile computing device to rename the file on the spool directory. That the imaging device knows the quick response code, the imaging device accesses and prints the file on media for the user.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: March 21, 2023
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Larraine Belleza Caño, Richmond Fajardo Enriquez, Froilan Balaga Guioguio, Jr., Ralph Lester Borces Rabor, Christopher Gerald Gamboa Santos
  • Patent number: 11599056
    Abstract: A photoconductive drum for an electrophotographic image forming device according to one example embodiment includes a cylindrical drum member. A shaft defines a rotational axis of the photoconductive drum. An end cap is positioned at an axial end of the drum member. An electrical contact is positioned against an axially inboard side of the end cap. The electrical contact electrically connects the shaft to the drum member. The electrical contact includes a plurality of projections that contact an inner circumferential surface of the drum member. A plurality of grooves are formed in an outer circumferential surface of the end cap.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: March 7, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Alfred Louis Fahmy, Kyle Benjamin Freels, Jody Evan McCoy
  • Patent number: 11574134
    Abstract: An imaging device and a method of processing a document at the imaging device which includes receiving a message associated with the document and an output language for the message, transmitting the message and the output language to a server communicatively connected to the imaging device, receiving from the server a translation of the message into the output language, and adding the translation to the document. An input language and an output language of the message associated with the document may be predetermined or may be received from a user of the imaging device.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 7, 2023
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventor: Neal Fredrick Vittitoe
  • Patent number: 11567443
    Abstract: An electrical contact according to one example embodiment includes a body composed of an electrically conductive material. The body has an axially inboard side and an axially outboard side. An opening through the body is configured to closely receive a shaft of a rotatable component. A mounting tab extends from the axially outboard side of the body for attaching the body to a rotatable gear to rotatably couple the electrical contact to the gear. A contact arm extends in a cantilevered manner from the axially inboard side of the body for contacting a bushing that rotatably supports the shaft to provide an electrical connection between the bushing and the shaft.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: January 31, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Brian Lester Boettcher, Bartley Charles Gould, II
  • Patent number: 11561489
    Abstract: A toner sealing system is described including a seal having first and second alignment features. The seal is selectably installable on one of a first toner container of a first type and a second toner container of a second type. The first alignment feature is matable with a first corresponding alignment feature on the first toner container when the seal is installed on the first toner container for aligning the seal to the first toner container. The second alignment feature is matable with a second corresponding alignment feature on the second toner container when the seal is installed on the second toner container for aligning the seal to the second toner container. Embodiments include those wherein the first alignment feature does not align the seal to the second toner container, and the second alignment feature does not align the seal to the first toner container.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: January 24, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Brian Lester Boettcher, David Lee Merrifield
  • Patent number: 11550259
    Abstract: A system includes a drive gear and a sensor mounted in an image forming device and a replaceable unit removably installable in the image forming device. The replaceable unit includes a gear for receiving rotational force from the drive gear. The system includes an encoded member encoded with identifying information of the replaceable unit and operatively connected to the gear such that rotation of the gear causes movement of the encoded member for communicating the identifying information of the replaceable unit to the sensor. The encoded member is configured to move toward the sensor upon rotation of the gear of the replaceable unit in a first rotational direction for communicating the identifying information of the replaceable unit to the sensor. The encoded member is configured to move away from the sensor upon rotation of the gear of the replaceable unit in a second rotational direction opposite the first rotational direction.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: January 10, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Virgil Johnson, Jr., Daniel Lee Carter, Daniel George Mlejnek
  • Patent number: 11550258
    Abstract: A replaceable unit includes a rotatable gear positioned on a housing of the replaceable unit and an encoded member encoded with identifying information of the replaceable unit. The encoded member is positioned on an axially outboard face of the gear such that the encoded member is rotatable with the gear for communicating the identifying information of the replaceable unit to a sensor of an image forming device when the replaceable unit is installed in the image forming device. The encoded member is configured to move axially outward relative to a rotational axis of the gear upon rotation of the gear in a first rotational direction for communicating the identifying information of the replaceable unit to the sensor. The encoded member is configured to move axially inward relative to the rotational axis of the gear upon rotation of the gear in a second rotational direction opposite the first rotational direction.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: January 10, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Virgil Johnson, Jr., Daniel Lee Carter, Daniel George Mlejnek
  • Patent number: D990914
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: July 4, 2023
    Assignee: Lexmark International, Inc.
    Inventor: Thomas Eugene Pangburn