Overheat Protection Patents (Class 400/124.13)
  • Patent number: 8011840
    Abstract: In a case where temperature of a print head mounted on a head carrier becomes a specified temperature or higher during use, a head carrier is retracted to a retracting section in a housing of a printer, so that it is hardly touched by a user's hand. The retracting to the retracting section can also be linked to opening of a printer cover.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: September 6, 2011
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Shigetoshi Asahina
  • Patent number: 7980774
    Abstract: A recording control device includes a head driving circuit, a temperature detector, and a controller. The head driving circuit includes a power supply that supplies a driving current to a plurality of driving coils used for driving a plurality of recording wires provided in a recording head. An induced current flows through a circuit which is connected to the plurality of driving coils when the driving current to the driving coils stops. The temperature detector detects a temperature of heat generated in the circuit due to the induced current, and the controller controls an operation of the recording head based on the temperature detected by the temperature detector.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: July 19, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Motohiro Nakamaki, Mamoru Wada
  • Publication number: 20100061788
    Abstract: A printer is provided with lugs protruding individually from opposite end portions of a heat sink on the upper end side thereof and collar portions disposed individually on axially opposite end portions of a platen roller and configured to contact the lugs of the heat sink, thereby moving the heat sink away from the platen roller against an urging force of a spring, while a pivotable cover is being pivoted to be opened or closed.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 11, 2010
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Kiyotaka Nihashi
  • Patent number: 7665919
    Abstract: A recording control device includes a head driving circuit, a temperature detector, and a controller. The head driving circuit includes a power supply that supplies a driving current to a plurality of driving coils used for driving a plurality of recording wires provided in a recording head. An induced current flows through a circuit which is connected to the plurality of driving coils when the driving current to the driving coils stops. The temperature detector detects a temperature of heat generated in the circuit due to the induced current, and the controller controls an operation of the recording head based on the temperature detected by the temperature detector.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: February 23, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Motohiro Nakamaki, Mamoru Wada