发明授权
US06519426B2 Image heating apparatus and image forming apparatus having the image heating apparatus 失效
具有图像加热装置的图像加热装置和图像形成装置

  • 专利标题: Image heating apparatus and image forming apparatus having the image heating apparatus
  • 专利标题(中): 具有图像加热装置的图像加热装置和图像形成装置
  • 申请号: US09854575
    申请日: 2001-05-15
  • 公开(公告)号: US06519426B2
    公开(公告)日: 2003-02-11
  • 发明人: Masahiro GotoSatoru Izawa
  • 申请人: Masahiro GotoSatoru Izawa
  • 优先权: JP2000-144903 20000517
  • 主分类号: G03G1520
  • IPC分类号: G03G1520
Image heating apparatus and image forming apparatus having the image heating apparatus
摘要:
An image heating apparatus used in an image forming apparatus includes a heating member fixedly disposed, a heat rotary member that slides while an inner surface of the heating member is in contact with the heating member, and a pressure rotary member that forms a heating member and a nip portion through the heating rotary member, in which a recording material that bears an image is nipped between the heating rotary member and the pressure rotary member at the nip portion and conveyed, and the image on the recording material is heated by heat from the heating member through the heating rotary member. In order to obtain a stable heating property (fixing property) not depending on the kind of paper of a recording material (a smooth paper, a rough paper), the temperature of the heating member or the heating rotary member is detected, and the current to the heating member is controlled so that the detected temperature becomes a target temperature. In this situation, the supply power amount to the heating member is monitored, and the target temperature is corrected on the basis of the monitor result. Also, when the temperature detected by the temperature detecting device is within a given range, the current to the heating member is controlled so that a given power is supplied to the heating member.
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