Invention Grant
US09411274B2 Image forming apparatus switching between first and second air feeding operations with different opening amounts of an opening through which air fed from a fan passes according to the detected temperature 有权
图像形成设备在第一和第二空气供给操作之间切换,具有不同的开口量,从风扇供给的空气通过该开口根据检测到的温度

  • Patent Title: Image forming apparatus switching between first and second air feeding operations with different opening amounts of an opening through which air fed from a fan passes according to the detected temperature
  • Patent Title (中): 图像形成设备在第一和第二空气供给操作之间切换,具有不同的开口量,从风扇供给的空气通过该开口根据检测到的温度
  • Application No.: US14796555
    Application Date: 2015-07-10
  • Publication No.: US09411274B2
    Publication Date: 2016-08-09
  • Inventor: Hiroyuki KadowakiToshiya Kaino
  • Applicant: CANON KABUSHIKI KAISHA
  • Applicant Address: JP Tokyo
  • Assignee: Canon Kabushiki Kaisha
  • Current Assignee: Canon Kabushiki Kaisha
  • Current Assignee Address: JP Tokyo
  • Agency: Fitzpatrick, Cella, Harper & Scinto
  • Priority: JP2013-093609 20130426; JP2014-060012 20140324
  • Main IPC: G03G15/20
  • IPC: G03G15/20
Image forming apparatus switching between first and second air feeding operations with different opening amounts of an opening through which air fed from a fan passes according to the detected temperature
Abstract:
An image forming apparatus includes a fixing portion, including: a heating member and a back-up member forming a nip; and an air feeding portion for feeding air to a non-sheet-passing area of at least one of the heating member and the back-up member, the air feeding portion including a fan for feeding the air, a duct, including an opening, for guiding the air fed from the fan through the opening to the non-sheet-passing area, and an adjusting member for adjusting an opening amount of the opening. The apparatus executes a first air feeding operation with a first opening amount and a first rotational frequency of the fan and a second air feeding operation with a second opening amount and a second rotational frequency, when the fixing portion fixes the images on sheets having the same widths.
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