JP2013025189A5

JP2013025189A5 -

Info

Publication number: JP2013025189A5
Application number: JP2011161099A
Authority: JP
Filing date: 2011-07-22
Publication date: 2014-05-22
Anticipated expiration: 2031-07-22

Description

（式（２）中、Ａｒ１〜Ａｒ４はそれぞれ独立して置換基を有していてもよいアリーレン基を表し、Ｘは単結合、酸素原子、硫黄原子、又はアルキレン基を表す。sは１以上２以
下の整数を表す。Ｙは、単結合、酸素原子、硫黄原子、又はアルキレン基を表す）。
＜２＞前記式（１）で表される化合物が位置異性体混合物であることを特徴とする＜１＞記載の電子写真感光体。
＜３＞導電性支持体上に少なくとも感光層を有する電子写真感光体において、該感光層中にＣｕＫα特性Ｘ線による粉末Ｘ線回折スペクトルにおいて、ブラッグ角（２θ±０．２゜）が少なくとも２４．１°、２７．２°に回折ピークを示す結晶型のオキシチタニウムフタロシアニンを含有することを特徴とする＜１＞ないし＜２＞記載の電子写真感光体。＜４＞＜１＞〜＜３＞のいずれかに記載の電子写真感光体、ならびに、該電子写真感光体を帯電させる帯電装置、該帯電した電子写真感光体を露光させて静電潜像を形成する露光装置、及び、該電子写真感光体上に形成された静電潜像を現像する現像装置からなる群から選ばれる少なくとも１つ、を備えたことを特徴とする電子写真感光体カートリッジ。＜５＞＜１＞〜＜３＞のいずれかに記載の電子写真感光体、該電子写真感光体を帯電させる帯電装置と、該帯電した電子写真感光体を露光させて静電潜像を形成する露光装置、および、該電子写真感光体上に形成された静電潜像を現像する現像装置、を備えたことを特徴とする画像形成装置。 (In Formula (2), Ar1 to Ar4 each independently represents an arylene group which may have a substituent, X represents a single bond, an oxygen atom, a sulfur atom, or an alkylene group. S is 1 or more. Represents an integer of 2 or less, and Y represents a single bond, an oxygen atom, a sulfur atom, or an alkylene group.
<2> The electrophotographic photosensitive member according to <1>, wherein the compound represented by the formula (1) is a regioisomer mixture.
<3> In an electrophotographic photosensitive member having at least a photosensitive layer on a conductive support, a Bragg angle (2θ ± 0.2 °) is at least 24 in a powder X-ray diffraction spectrum by CuKα characteristic X-ray in the photosensitive layer. The electrophotographic photosensitive member according to <1> or <2>, comprising a crystalline oxytitanium phthalocyanine having diffraction peaks at 1 ° and 27.2 °. <4> The electrophotographic photosensitive member according to any one of <1> to <3>, a charging device for charging the electrophotographic photosensitive member, and exposing the charged electrophotographic photosensitive member to form an electrostatic latent image. An electrophotographic photosensitive member cartridge comprising: an exposure device to be formed; and at least one selected from the group consisting of a developing device for developing an electrostatic latent image formed on the electrophotographic photosensitive member. <5> The electrophotographic photosensitive member according to any one of <1> to <3>, a charging device that charges the electrophotographic photosensitive member, and an electrostatic latent image formed by exposing the charged electrophotographic photosensitive member An image forming apparatus comprising: an exposure device for developing the image; and a developing device for developing the electrostatic latent image formed on the electrophotographic photosensitive member.

Claims

In an electrophotographic photoreceptor having at least a photosensitive layer on a conductive support, a polyester resin having a charge transport material represented by the following formula (1) and a structural unit represented by the following formula (2) in the photosensitive layer An electrophotographic photosensitive member comprising:

(Formula (1) R ^{1 to} R ⁷ each independently represents a hydrogen atom, an alkyl group, an aryl group, or an alkoxy group. N represents an integer of 1 to 5, and k, l, q, and r are each independent. And an integer of 1 to 5 and m, o and p each independently represents an integer of 1 to 4.

(In formula (2), Ar ^{1 to} Ar ⁴ each independently represent an arylene group which may have a substituent, X represents a single bond, an oxygen atom, a sulfur atom, or an alkylene group. And represents an integer of 1 to 2. Y represents a single bond, an oxygen atom, a sulfur atom, or an alkylene group.

2. The electrophotographic photosensitive member according to claim 1, wherein the compound represented by the formula (1) is a mixture of positional isomers.

In an electrophotographic photosensitive member having at least a photosensitive layer on a conductive support, the Bragg angle (2θ ± 0.2 °) is at least 24.1 ° in the powder X-ray diffraction spectrum by CuKα characteristic X-ray in the photosensitive layer. The electrophotographic photosensitive member according to claim 1, comprising a crystalline oxytitanium phthalocyanine having a diffraction peak at 27.2 °.

The electrophotographic photosensitive member according to any one of claims 1 to 3, a charging device that charges the electrophotographic photosensitive member, an exposure device that exposes the charged electrophotographic photosensitive member to form an electrostatic latent image, And an electrophotographic photosensitive member cartridge comprising: at least one selected from the group consisting of developing devices for developing an electrostatic latent image formed on the electrophotographic photosensitive member.

The electrophotographic photosensitive member according to claim 1, a charging device that charges the electrophotographic photosensitive member, an exposure device that exposes the charged electrophotographic photosensitive member to form an electrostatic latent image, and An image forming apparatus comprising: a developing device that develops an electrostatic latent image formed on the electrophotographic photosensitive member.