Ricoh Company, Ltd.

Takuji Katoh

Toshiyuki Kabata

Yoshio Watanabe

Junichi Yamazaki

Toshio Fukagai

Noriyuki Iwata

Katsuhiko Tani

Yuka Miyamoto

Daisuke Goto

Satoshi Yamamoto

Masataka Mohri

Satoshi Miyagawa

Hajime Nakanotani

An arylamine compound including: a partial structure shown in formula (1-1) or (1-2), wherein either X or Y is one of leaving substituents and the other is a hydrogen atom; either (X, X) or (Y, Y) is one of the leaving substituents respectively and the other is the hydrogen atom respectively; each of Q, Q, Q, Q, Q, and Qis selected from the hydrogen atom, a halogen atom, organic substituents other than the leaving substituents, and an atomic bonding to link with an adjacent arylamine group respectively; and adjacent two substituents selected from Q, Q, Q, Q, Q, and Qmay be linked together to form the ring which may be a part of an arylamine group. 

Arylamine compound

A photoreceptor including a support and a photosensitive layer formed thereon, optionally an undercoat layer between the support and the photosensitive layer, wherein when a group of data consisting of N samples of the height x(t) (&mgr;m) of a profile at the interface of the support on the side of the photosensitive layer, the interface of the photosensitive layer on the side of the support, and/or the interface of the undercoat layer on the side of the photosensitive layer, measured perpendicular to a horizontal direction of the support, taken at &Dgr;t (&mgr;m) intervals in the horizontal direction, is subjected to Fourier transformation in accordance with a formula as specified in the specification, in a power spectrum obtained by the Fourier transformation, I(S) represented by a formula specified in the specification has a particular value, a method of evaluating the above photoreceptor, a method of producing the photoreceptor, and an image formation apparatus in which the photoreceptor is incorporated are disclosed.

Photoreceptor, method of evaluating a photoreceptor, and method of producing the photoreceptor

A photoreceptor including a support and a photosensitive layer formed thereon, optionally an undercoat layer between the support and the photosensitive layer, wherein when a group of data consisting of N samples of the height x(t)(&mgr;m) of a profile at the interface of the support on the side of the photosensitive layer, the interface of the photosensitive layer on the side of the support, and/or the interface of the undercoat layer on the side of the photosensitive layer, measured perpendicular to a horizontal direction of the support, taken at &Dgr;t(&mgr;m) intervals in the horizontal direction, is subjected to Fourier transformation in accordance with a formula as specified in the specification, in a power spectrum obtained by the Fourier transformation, I(S) represented by a formula specified in the specification has a particular value, a method of evaluating the above photoreceptor, a method of producing the photoreceptor, and an image formation apparatus in which the photoreceptor is incorporated are disclosed.

Photoreceptor, method of evaluating the photoreceptor, method of producing the photoreceptor, and image formation apparatus using the photoreceptor

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Kanagawa, Japan

Takuji Katoh