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    ELECTROPHOTOGRAPHIC IMAGE FORMING SYSTEM
    1.
    发明公开
    ELECTROPHOTOGRAPHIC IMAGE FORMING SYSTEM 审中-公开

    公开(公告)号：US20230185227A1

    公开(公告)日：2023-06-15

    申请号：US18064490

    申请日：2022-12-12

    申请人： KONICA MINOLTA, INC.

    发明人： Taiki AMEMIYA ,  Kazutoshi KOBAYASHI ,  Yukio HOSOYA ,  Seijiro TAKAHASHI ,  Tomoko SAKIMURA ,  Kazukuni NISHIMURA

    IPC分类号： G03G15/00 ,  G03G21/00 ,  G03G8/00

    CPC分类号： G03G15/6597 ,  G03G21/0011 ,  G03G8/00 ,  G03G2215/00518

    摘要： An electrophotographic image forming system forms an electrostatic latent image on at least a photoreceptor, develops an image using an electrostatic charge image developing toner, and removes the toner using a cleaning blade. A tip ridge of the cleaning blade is pressed against a surface of the photoreceptor. The system includes a photosensitive layer of the photoreceptor and a surface protecting layer that is provided on a surface of the photosensitive layer. The surface protecting layer includes a polymerizable monomer having at least two polymerizable groups in a molecule and a polymer of a hole transporting compound having a polymerizable group represented by General formula (1). The tip ridge of the cleaning blade has an edge angle that is obtuse and less than 120° and is pressed against the surface of the photoreceptor at an effective contact angle that is in a range of 8 to 20°.

    ELECTROPHOTOGRAPHIC IMAGE SUPPORT
    3.
    发明申请
    ELECTROPHOTOGRAPHIC IMAGE SUPPORT 审中-公开

    公开(公告)号：US20170219943A1

    公开(公告)日：2017-08-03

    申请号：US15414867

    申请日：2017-01-25

    申请人： Konica Minolta, Inc.

    发明人： Toyoko SHIBATA ,  Tomoko SAKIMURA ,  Masanori YUMITA

    IPC分类号： G03G15/00

    CPC分类号： G03G5/043 ,  G03G5/0592 ,  G03G5/14704 ,  G03G5/14726 ,  G03G5/14734 ,  G03G5/1476 ,  G03G5/14786 ,  G03G5/14791 ,  G03G5/14795

    摘要： An electrophotographic image support includes: a conductive support; a photosensitive layer disposed on the conductive support; and a protective layer disposed on the photosensitive layer, the protective layer being formed of a polymerized cured product of a radically polymerizable composition containing a radically polymerizable monomer and a perfluoropolyether compound having a radically polymerizable functional group, the perfluoropolyether compound having the radically polymerizable functional group being represented by the following formula (1): [Chemical Formula 1] (B)l-A-CF2O(CF2CF2O)m(CF2O)nCF2-A-(B)l  (1) wherein A represents a linking group having a molecular weight of 100 or more and 400 or less, B represents a radically polymerizable functional group, l represents an integer of 2 or more, and m and n each represent an integer of 0 or more, wherein m+n≧1.

    ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS USING THE SAME
    7.
    发明申请
    ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS USING THE SAME 审中-公开

    公开(公告)号：US20200081360A1

    公开(公告)日：2020-03-12

    申请号：US16518251

    申请日：2019-07-22

    申请人： Konica Minolta, Inc.

    发明人： Tomoko SAKIMURA ,  Hiroki TAKAO ,  Mayuko MATSUSAKI ,  Kengo IKEDA

    IPC分类号： G03G5/147 ,  G03G15/00

    摘要： An electrophotographic photoreceptor includes an outermost layer formed of a polymerized cured product of a composition containing a polymerizable monomer and metal oxide particles surface-treated with a surface treatment agent having a silicone chain, wherein a ratio (r/r′) between a number average primary particle diameter (r) of metal oxide particles which are untreated base particles of the metal oxide particles surface-treated with the surface treatment agent having a silicone chain and a sphere equivalent particle diameter (r′) of the untreated base particles calculated from a specific surface area measured by a nitrogen adsorption method is 1.5 or more and 6.0 or less, and a surface treatment amount with the surface treatment agent having a silicone chain per surface area of the untreated base particles is 0.0005 g/m2 or more and 0.0015 g/m2 or less.