Invention Application
- Patent Title: FIXING ROTATING MEMBER, FIXING APPARATUS, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND METHOD FOR PRODUCING FIXING ROTATING MEMBER
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Application No.: US17554231Application Date: 2021-12-17
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Publication No.: US20220206421A1Publication Date: 2022-06-30
- Inventor: Yohei Miyauchi , Yasuharu Notoya , Naoko Kasai , Yusuke Baba , Masaaki Takahashi , Hiroki Muramatsu , Ryo Ishifuji
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Priority: JP2020-217946 20201225,JP2021-194224 20211130
- Main IPC: G03G15/20
- IPC: G03G15/20

Abstract:
A fixing rotating member comprising a base layer, an elastic layer and a surface layer, in this order, the surface layer containing PFA and PFPE, and having pores with openings at a first surface; at least part of the pores containing the PFPE, wherein when after removing the PFPE in the pores, placing a first observation region on the first surface, defining a ratio of a sum of areas of the openings in the first observation region relative to an area of the first observation region as P1; and placing a second observation region in a cross section of the surface layer, and defining a ratio of a sum of areas of the pores in the second observation region relative to an area of the second observation region as P2, P2/P1 is 1.3 or higher.
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