发明授权
- 专利标题: Image forming apparatus and image forming method
- 专利标题(中): 图像形成装置及图像形成方法
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申请号: US13168462申请日: 2011-06-24
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公开(公告)号: US08750760B2公开(公告)日: 2014-06-10
- 发明人: Hyo Shu
- 申请人: Hyo Shu
- 申请人地址: JP Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2010-162044 20100716
- 主分类号: G03G15/00
- IPC分类号: G03G15/00 ; G03G9/08
摘要:
An image forming apparatus including a latent electrostatic image bearing member, a latent electrostatic image forming unit, a developing unit, a transfer unit and a fixing unit, wherein the fixing unit includes rotatable heating member heating the recording medium having the unfixed visible image, rotatable pressing member coming into contact with the rotatable heating member to form a nip portion, and an air separation member separating the recording medium from the rotatable heating member by air, the toner including toner base particles each including binder resin and releasing agent, the binder resin including crystalline polyester resin and non-crystalline resin, and ratio of W/R being 0.045 to 0.85, where W denotes peak height in spectrum of the crystalline polyester resin, R denotes peak height in spectrum of the non-crystalline resin, and each of the spectra is measured by total transmission method (KBr method) using Fourier transform infrared (FT-IR) spectrometer.
公开/授权文献
- US20120014714A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 公开/授权日:2012-01-19
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