Patents by Inventor TOMOYUKI KAWANISHI

TOMOYUKI KAWANISHI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Image forming apparatus
    Patent number: 11054759
    Abstract: An image forming apparatus includes a photoconductor, a charger; a charge voltage applier that applies first and second charge voltages to the charger; an exposure device; a development device; a development voltage applier that applies first and second development voltages to the development device; a transfer device; a fixing device; a motor that drives the photoconductor simultaneously with at least one of the transfer device, the fixing device, and the transporter; and a controller. When the motor is driven for image formation, the first charge voltage and the first development voltage are respectively applied to the charge voltage applier and the development voltage applier. When the motor is driven for an operation other than image formation, the second charge voltage and the second development voltage are respectively applied to the charge voltage applier and the development voltage applier.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: July 6, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Tomoyuki Kawanishi
  • IMAGE FORMING APPARATUS
    Publication number: 20200401072
    Abstract: An image forming apparatus includes a photoconductor, a charger; a charge voltage applier that applies first and second charge voltages to the charger; an exposure device; a development device; a development voltage applier that applies first and second development voltages to the development device; a transfer device; a fixing device; a motor that drives the photoconductor simultaneously with at least one of the transfer device, the fixing device, and the transporter; and a controller. When the motor is driven for image formation, the first charge voltage and the first development voltage are respectively applied to the charge voltage applier and the development voltage applier. When the motor is driven for an operation other than image formation, the second charge voltage and the second development voltage are respectively applied to the charge voltage applier and the development voltage applier.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 24, 2020
    Inventor: TOMOYUKI KAWANISHI