Patents Examined by Greg Moldatsky
  • Developing device
    Patent number: 6104903
    Abstract: A developing device has a developing container containing a toner therein, and a toner carrying member provided in the opening portion of the developing container and rotatable with the toner carried thereon. The difference between the work function of the surface of the toner carrying member and the work function of the toner is greater than 0.1 and smaller than 1.0.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: August 15, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuaki Hara, Takao Honda, Yoshito Mizoguchi, Kazuo Suzuki