Patents Assigned to Lexmark International, Inc.
  • Patent number: 11962724
    Abstract: A business method includes imaging documents with an imaging device placed at a location. Media usage is monitored over a cellular network. Upon the media reaching a predetermined level, workers provide additional media. Workers exist in the “gig” economy and have preplaced media. No longer do users change or swap media in media trays. Packaging materials bundle the media. For use, only a portion of the packaging materials is opened thereby revealing an end of the media. Both the packaging materials and the exposed media are inserted into a reusable media shell in a manner making the media available for picking by the imaging device. Other embodiments are envisioned.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: April 16, 2024
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Kevin Dean Schoedinger, Edward Lynn Triplett, Scott Allan Kendall
  • Patent number: 11951759
    Abstract: The invention adds a Physical Information Layer (“PIL”) to the magnetic particles within a matrix that creates an unclonable physical unclonable function “object.” The PIL assists in searching to find the combination that matches a pre-determined enrolled combination with additional information that includes a search index, which limits the range of data required to search in order to find a match in the enrolled database. The index could be a predetermined value that associates the random magnetic profile values to a list of enrolled values in a database. The additional information may include product or general information that needs to be easily communicated to a user of the PUF.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: April 9, 2024
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventor: Keith Bryan Hardin
  • Patent number: 11947279
    Abstract: A system for sensing material within a container includes a container having a reservoir for storing material and an impact member configured to selectively impart an impulse force on the container to cause vibration of the container. A sensor is configured to sense the vibration of the container upon the impact member imparting the impulse force on the container. Processing circuitry in communication with the sensor is configured to determine an estimate of an amount of the material in the container based on the sensed vibration of the container.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: April 2, 2024
    Assignee: Lexmark International, Inc.
    Inventors: Alexander Lloyd Chapman, Clare Cabahug Maxino, Neilson Gutay Navarrete, Michael Todd Phillips, Scott Daniel Reeves, Daniel Lee Thomas
  • Patent number: 11947282
    Abstract: A system for an electrophotographic image forming device includes a toner container having a reservoir for storing toner and an impact member configured to selectively impart an impulse force on the toner container to cause vibration of the toner container. A sensor is configured to sense the vibration of the toner container upon the impact member imparting the impulse force on the toner container. Processing circuitry in communication with the sensor is configured to determine an estimate of an amount of toner in the reservoir based on the sensed vibration of the toner container.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: April 2, 2024
    Assignee: Lexmark International, Inc.
    Inventors: Alexander Lloyd Chapman, Clare Cabahug Maxino, Neilson Gutay Navarrete, Michael Todd Phillips, Scott Daniel Reeves, Daniel Lee Thomas
  • Patent number: 11947303
    Abstract: A cleaner assembly includes a cleaner blade having a cleaning edge in contact with a photoconductive drum for removing toner therefrom. An elongated seal extends along a length of the cleaner blade such that an opening for capturing toner removed from the photoconductive drum is formed between the cleaning edge and the elongated seal. The elongated seal includes a tab projecting across a longitudinal end section of the cleaner blade such that the tab is positioned between the cleaning edge and the photoconductive drum preventing contact between the cleaning edge and the photoconductive drum. A fabric seal is positioned in a portion of the opening formed between the cleaning edge and the elongated seal at the longitudinal end section of the cleaner blade. At least a portion of the fabric seal is positioned inboard of the tab of the elongated seal along the length of the cleaner blade.
    Type: Grant
    Filed: January 11, 2023
    Date of Patent: April 2, 2024
    Assignee: Lexmark International, Inc.
    Inventor: Richard Louis Goin
  • Patent number: 11927911
    Abstract: A replaceable unit for an electrophotographic image forming device includes a housing having a reservoir for holding toner. An electrical connector is positioned on a first side of the housing. The electrical connector includes an electrical contact for contacting a corresponding electrical contact in the image forming device. The electrical contact of the replaceable unit is electrically connected to processing circuitry mounted on the housing. The electrical connector is movable between a first position and a second position. The electrical contact of the replaceable unit moves outward from the first side of the housing along a side-to-side dimension of the housing when the electrical connector moves from the first position to the second position. The electrical contact of the replaceable unit faces downward when the electrical connector is in the second position permitting the corresponding electrical contact to contact the electrical contact of the replaceable unit from below.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: March 12, 2024
    Assignee: Lexmark International, Inc.
    Inventors: James Richard Leemhuis, Kyle Bradley Martin
  • Patent number: 11914322
    Abstract: An assembly for an electrophotographic image forming device includes a drive coupler movable along an axial direction between a retracted position and an extended position. In the retracted position the drive coupler is disengaged from a drive interface of a first replaceable unit when the first replaceable unit is installed in the image forming device. In the extended position the drive coupler is engaged with the drive interface of the first replaceable unit when the first replaceable unit is installed in the image forming device for providing a rotational force to the drive interface of the first replaceable unit. A lever is operatively connected to the drive coupler such that the lever causes the drive coupler to move from the retracted position to the extended position upon the lever receiving an actuation force from insertion of a second replaceable unit that is toward the drive coupler along the axial direction.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: February 27, 2024
    Assignee: Lexmark International, Inc.
    Inventors: Bartley Charles Gould, II, Michael James Shanor
  • Patent number: 11903472
    Abstract: A hair iron according to one example embodiment includes a first arm and a second arm movable relative to each other between an open position and a closed position. A contact surface is positioned on an exterior of the first arm for contacting hair during use. The hair iron includes a heater having a ceramic substrate and an electrical resistor material thick film printed on a surface of the ceramic substrate. The heater generates heat by applying an electric current to the electrical resistor material. The heater is positioned to supply heat to the contact surface.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: February 20, 2024
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Peter Alden Bayerle, Russell Edward Lucas, Jerry Wayne Smith
  • Patent number: 11862366
    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: January 12, 2023
    Date of Patent: January 2, 2024
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Makoto Aoki, Jerry Wayne Smith
  • Patent number: 11852992
    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: January 30, 2023
    Date of Patent: December 26, 2023
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Edward Lynn Triplett, Kevin Dean Schoedinger, Todd Allison Quinn
  • Patent number: 11829085
    Abstract: A toner container according to one example embodiment includes a plurality of electrical contacts for contacting corresponding electrical contacts in an image forming device when the toner container is installed in the image forming device. The electrical contacts of the toner container are accessible from below at the bottom of the body by the corresponding electrical contacts in the image forming device when the toner container is installed in the image forming device. The electrical contacts of the toner container are spaced from each other along a horizontal dimension that is orthogonal to a vertical dimension of the toner container. A nominal position of the horizontal dimension along which the electrical contacts are spaced from each other is angled relative to a front-to-rear dimension of the toner container and a side-to-side dimension of the toner container.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: November 28, 2023
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Emily Stefano Adams, Brian Lester Boettcher, David Lee Merrifield
  • Patent number: 11828490
    Abstract: An appliance for heating fluid includes a reservoir for holding the fluid during use. One or more ceramic heaters mount with the reservoir to heat the fluid. The heater includes electrically resistive traces thick-film printed on a substrate. The heaters optionally mount with a heat transfer element having a relatively large surface area. The heat transfer element typifies a conductive element, such as an aluminum plate of forged aluminum. The plate has cavities to retain the heaters or sections fitted about heaters. Holes through a thickness of the plate induce turbulent fluid flow as the fluid freely passes there through during use. Heater control and mounting are still other aspects of the technology.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: November 28, 2023
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Jerry Wayne Smith, David Anthony Schneider, Jichang Cao, Virgil Johnson, Jr.
  • Patent number: 11820619
    Abstract: In the invention described, an actuating solenoid on one side of a printer wall connects to a pawl by a lever component. The lever has a pawl-actuating post extending through a wall window so that it may interface with a flared slot on the clutch's pawl. By extending the post through the wall window, space is saved when the printer door is closed because the solenoid does not need to be on the inside of the wall.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: November 21, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Geoffrey Kirk Carlson, Darren Adam Keese
  • Patent number: 11791074
    Abstract: 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. At least one resistive trace of silver and palladium overlies the base as does a conductor of silver and platinum or palladium that electrically connects to the resistive trace to apply an external voltage to the resistive trace for heating thereof. At least four, but optionally five, layers of glass overlie the resistive trace and part of the conductor. A first two consecutive layers of the glass layers define a first glass having a solid content of more than 65% and a viscosity of 100 Pa·s or less. The following two or three consecutive layers of the five layers define a second glass dissimilar to the first.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: October 17, 2023
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Makoto Aoki, Jerry Wayne Smith
  • Patent number: 11762327
    Abstract: An assembly for an image forming device includes an access door movable between an open position permitting replacement of a replaceable unit and a closed position. An electrical connector in the image forming device is movable between a retracted position and an extended position. In the retracted position the electrical connector is disengaged from a corresponding electrical connector of the replaceable unit when the replaceable unit is installed in the image forming device. In the extended position the electrical connector is engaged with the corresponding electrical connector of the replaceable unit. The electrical connector is operatively connected to the access door such that movement of the access door from the closed to the open position moves the electrical connector from the extended to the retracted position and movement of the access door from the open to the closed position moves the electrical connector from the retracted to the extended position.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: September 19, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Virgil Johnson, Jr., Darren Adam Keese, James Richard Leemhuis
  • Patent number: 11754969
    Abstract: A toner cartridge according to one example includes first and second alignment guides that extend outward from a first side and a second side of the toner cartridge, respectively, for positioning the toner cartridge. The first and second alignment guides define a pivot axis about which the toner cartridge is pivotable relative to an imaging unit when the toner cartridge is installed on the imaging unit. An engagement member is positioned on a rear of the toner cartridge for receiving a bias force for biasing the toner cartridge about the pivot axis when the toner cartridge is installed on the imaging unit. The engagement member is positioned next to the bottom of the housing. The engagement member includes an angled contact surface that faces upward and rearward for contacting a corresponding hold-down on the imaging unit when the toner cartridge is installed on the imaging unit.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: September 12, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Brian Scott Carpenter, Gregory Alan Cavill, James Richard Leemhuis, Jeffrey Lawrence Tonges
  • Patent number: 11720048
    Abstract: A first replaceable unit is provided for use with a second replaceable unit in an electrophotographic image forming device. The first replaceable unit includes a latch movable between a latching position for latching the first replaceable unit to the second replaceable unit and an unlatching position for permitting the first replaceable unit to separate from the second replaceable unit. The latch is positioned to contact a latch catch on the second replaceable unit in order to prevent the first replaceable unit from separating from the second replaceable unit when the first replaceable unit is mated with the second replaceable unit and the latch is in the latching position. The latch includes a cam follower surface for contacting a camming surface on the second replaceable unit during mating of the first replaceable unit with the second replaceable unit to cause the latch to move toward the latching or unlatching position.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: August 8, 2023
    Assignee: Lexmark International, Inc.
    Inventor: Randal Scott Williamson
  • Patent number: 11714373
    Abstract: A toner cartridge according to one example embodiment includes a housing having a reservoir for holding toner. A first electrical contact and a second electrical contact are positioned on a first longitudinal end of the housing. The first electrical contact is electrically connected to processing circuitry positioned on the housing. The second electrical contact is electrically connected to an imaging component positioned on the housing. The first electrical contact is positioned higher than the second electrical contact. A first drive coupler and a second drive coupler are positioned on a second longitudinal end of the housing. The first electrical contact and the second electrical contact are positioned higher than a first rotational axis of the first drive coupler. The first electrical contact is positioned higher than a second rotational axis of the second drive coupler and the second electrical contact is positioned lower than the second rotational axis.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: August 1, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Mark William Amann, Brian Lester Boettcher, James Anthany Carter, II, Benjamin Charles Devore, Darin Michael Gettelfinger
  • Patent number: 11714376
    Abstract: An imaging device has a fuser assembly and a removably insertable cartridge with an activation device. The fuser assembly has a fusing nip that heats during use. A shutter moves between a fully opened and fully closed position to allow or block access to the fusing nip. A frame has an opening to allow passage of the activation device of the cartridge. During use, the shutter blocks access to the fusing nip until the activation device of the cartridge passes through the opening of the frame and contacts a corresponding activation surface, whereby the shutter begins opening and travels through a range of movement until reaching the fully opened position when the cartridge is fully inserted into the imaging device. Removal of the cartridge reverses the action of the shutter.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: August 1, 2023
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventor: Virgil Johnson, Jr.
  • Patent number: 11703777
    Abstract: An assembly for use in an electrophotographic image forming device includes a housing having a reservoir for holding toner. The housing includes a wall having an inner surface forming a boundary of the reservoir and an outer surface opposite the inner surface. A toner agitator is positioned in the reservoir and has a rotatable shaft. The shaft includes an end portion that passes through an opening in the wall. A gear is mounted on the end portion of the shaft outside of the reservoir and is rotatably coupled to the shaft. An annular seal encircles and is in contact with an outer circumferential surface of the shaft. The annular seal is positioned between an inner axial face of the gear and the outer surface of the wall. The inner axial face of the gear contacts the annular seal and presses the annular seal against the outer surface of the wall.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: July 18, 2023
    Assignee: Lexmark International, Inc.
    Inventors: Brian Lester Boettcher, Brian Lee Hawes, David Lee Merrifield