Fuji Xerox Co., Ltd.

Fujifilm Business Innovation Corp.

Tatsuki Sano

Takeshi Iwanaga

Masaki Hirakata

Hideya Katsuhara

Takashi Imai

Kenji Kajiwara

Yuko Iwadate

Katsumi Nukada

Hidekazu Hirose

Tomoya Sasaki

Shunsuke Nozaki

Fumiaki Mera

Nobuyuki Torigoe

Satomi Kashiwagi

Soichiro Kitagawa

Yoichi Kigoshi

A resin molded product contains a resin and hollow particles each having a shell layer containing a silsesquioxane represented by the following formula (RSiO)wherein R represents an alkyl group having 1 or more and 3 or less carbon atoms, a phenyl group, or a vinyl group, and n is an integer of 7 or more and 150 or less.

Resin molded product and resin composition

An electrophotographic photoreceptor includes an electroconductive substrate, an organic photosensitive layer on the electroconductive substrate and an inorganic protective layer on the organic photosensitive layer, wherein a layer that forms a surface of the organic photosensitive layer contains a charge transporting material, a binder resin, and a silica particle; the inorganic protective layer contains a group 13 element, an oxygen atom, and a hydrogen atom; a sum of element constitution ratios of the group 13 element, the oxygen atom, and the hydrogen atom to all elements constituting the inorganic protective layer is equal to or more than 90 atomic %; and an element composition ratio (oxygen atom/group 13 element) of the oxygen atom and the group 13 element is 1.0 or more and less than 1.5.

Electrophotographic photoreceptor, process cartridge, and image forming apparatus

An electrophotographic photoreceptor includes a conductive substrate, an organic photosensitive layer on the conductive substrate, and an inorganic protective layer on the organic photosensitive layer. A layer that constitutes a surface of the organic photosensitive layer contains a charge transport material, a binder resin, silica particles, and a silicone compound.

An electrophotographic photoreceptor includes an electroconductive substrate, a photosensitive layer provided on the electroconductive substrate, and an inorganic surface layer provided on the photosensitive layer, wherein a layer constituting an outermost surface of the photosensitive layer contains from 30% by weight to 70% by weight of silica particles and contains a biphenyl copolymerization type polycarbonate resin including a structural unit represented by the formula (PCA) and a structural unit represented by the formula (PCB) at a copolymerization ratio (PCA:PCB (molar ratio)) of 10:90 to 50:50: 

An image forming method satisfies the following Expressions:0.01&#x3c;&#x3c;0.20&#x2003;&#x2003;Expression (A1):0.005&#x3c;&#x3c;5.000&#x2003;&#x2003;Expression (B1):0.002&#x3c;&#x3c;1.000&#x2003;&#x2003;Expression (B2):1.0&#x3c;max/min&#x3c;2.5&#x2003;&#x2003;Expression (C1):1.0&#x3c;max/min&#x3c;2.5&#x2003;&#x2003;Expression (C2):wherein, when a content of the fatty acid metal salt particles with respect to the entire weight of the toner is set as Rmf, an average abrasion rate of the electrophotographic photoreceptor is set as Wh, a maximum abrasion rate of the electrophotographic photoreceptor is set as Whmax, and a minimum abrasion rate of the electrophotographic photoreceptor is set as Whmin, and an average abrasion rate of the electrophotographic photoreceptor is set as Wl, a maximum abrasion rate of the electrophotographic photoreceptor is set as Wlmax, and a minimum abrasion rate of the electrophotographic photoreceptor is set as Wlmin.

Image forming method, image forming apparatus, and process cartridge

Growing community of inventors

Kanagawa, Japan

Tatsuki Sano