发明授权
US08977175B2 Fixing apparatus having an oil roller and image forming apparatus including the same
有权
具有油辊的固定装置和包括该油辊的图像形成装置
- 专利标题： Fixing apparatus having an oil roller and image forming apparatus including the same
- 专利标题（中）： 具有油辊的固定装置和包括该油辊的图像形成装置
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申请号： US14002068申请日： 2012-02-16
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公开(公告)号： US08977175B2公开(公告)日： 2015-03-10
- 发明人: Masaya Asakawa , Hirokazu Nakamura , Takashi Yamanaka
- 申请人： Masaya Asakawa , Hirokazu Nakamura , Takashi Yamanaka
- 申请人地址： JP Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JP Osaka
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2011-045804 20110303
- 国际申请： PCT/JP2012/053604 WO 20120216
- 国际公布： WO2012/117859 WO 20120907
- 主分类号： G03G15/16
- IPC分类号： G03G15/16 ; G03G15/20
摘要：
A fixing apparatus of the invention includes a pressure roller 6 and a fixing roller 7 that make press-contact with each other and an oil roller 8 that makes press-contact with either the pressure roller 6 or the fixing roller 7, and passes a recording sheet through a nip area between the pressure roller 6 and the fixing roller 7 to fix toner on the recording sheet. The fixing apparatus also includes: a pressure roller gear 21 and an oil roller gear 22 that transmit a rotation of a shaft of the pressure roller 6 that makes press-contact with the oil roller 8 to a shaft of the oil roller 8; and a one-way clutch 23 that causes the oil roller 8 to idly rotate in a direction of a driven rotation when the oil roller 8 is driven to rotate by pressing against the pressure roller 6.