Patents by Inventor Hongjie Tan

Hongjie Tan 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).

  • Patent number: 9223288
    Abstract: Disclosed is a waste toner collecting container used in an image forming device for collecting waste toner and a process unit having the waste toner collecting container. An assembly of a development unit and the photoreceptor unit is fixedly connected to the waste toner collecting container. The development unit is configured to supply toner to a photoreceptor in the photoreceptor unit. The photoreceptor unit is configured to form a toner image on an outer surface of the photoreceptor, and to have a cleaning component used for removing the waste toner remaining on the outer surface of the photoreceptor after the toner image is transferred to a recording medium. A waste toner discharging outlet is disposed on a top wall of the waste toner collecting container, far away from the photoreceptor, and is disposed at an end of the top wall along an axial direction of the photoreceptor.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: December 29, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Chuanyi Yang, Hongjie Tan, Junlin Cai, Fei Zhang, Fawei Chen
  • Publication number: 20130051882
    Abstract: Disclosed is a waste toner collecting container used in an image forming device for collecting waste toner and a process unit having the waste toner collecting container. An assembly of a development unit and the photoreceptor unit is fixedly connected to the waste toner collecting container. The development unit is configured to supply toner to a photoreceptor in the photoreceptor unit. The photoreceptor unit is configured to form a toner image on an outer surface of the photoreceptor, and to have a cleaning component used for removing the waste toner remaining on the outer surface of the photoreceptor after the toner image is transferred to a recording medium. A waste toner discharging outlet is disposed on a top wall of the waste toner collecting container, far away from the photoreceptor, and is disposed at an end of the top wall along an axial direction of the photoreceptor.
    Type: Application
    Filed: August 21, 2012
    Publication date: February 28, 2013
    Inventors: Chuanyi Yang, Hongjie Tan, Junlin Cai, Fei Zhang, Fawei Chen
  • Patent number: 7965952
    Abstract: A disclosed remaining amount of developer detection device includes a remaining amount of developer detection section detecting a remaining amount of developer in a development device, an operation amount computation section computing an operation amount of the development device corresponding to a developer consumption amount, and a remaining amount detection control section accumulating the operation amount and detecting the remaining amount of developer based on the accumulated operation amount. In this device, when the remaining amount of developer detection section has detected the remaining amount of developer that has been reduced to a first threshold, the remaining amount detection control section initializes the accumulated operation amount and starts accumulating a new operation amount of the development device corresponding to a developer consumption amount, and determines whether the remaining amount of developer in the development device is in a toner-end status based on the new operation amount.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: June 21, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Hongjie Tan, Junlin Cai, Chuanyi Yang, Yoshitake Shimizu
  • Publication number: 20100232816
    Abstract: A disclosed remaining amount of developer detection device includes a remaining amount of developer detection section detecting a remaining amount of developer in a development device, an operation amount computation section computing an operation amount of the development device corresponding to a developer consumption amount, and a remaining amount detection control section accumulating the operation amount and detecting the remaining amount of developer based on the accumulated operation amount. In this device, when the remaining amount of developer detection section has detected the remaining amount of developer that has been reduced to a first threshold, the remaining amount detection control section initializes the accumulated operation amount and starts accumulating a new operation amount of the development device corresponding to a developer consumption amount, and determines whether the remaining amount of developer in the development device is in a toner-end status based on the new operation amount.
    Type: Application
    Filed: February 25, 2010
    Publication date: September 16, 2010
    Inventors: Hongjie TAN, Junlin CAI, Chuanyi YANG, Yoshitake SHIMIZU
  • Patent number: D703738
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: April 29, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Takuya Etoh, Hongjie Tan, Fei Zhang, Junquan Huang, Chuanyi Yang