JP2000056489A - Electrophotographic photoreceptor, process cartridge having that electrophotographic photoreceptor, and electrophotographic device - Google Patents
Electrophotographic photoreceptor, process cartridge having that electrophotographic photoreceptor, and electrophotographic deviceInfo
- Publication number
- JP2000056489A JP2000056489A JP10233500A JP23350098A JP2000056489A JP 2000056489 A JP2000056489 A JP 2000056489A JP 10233500 A JP10233500 A JP 10233500A JP 23350098 A JP23350098 A JP 23350098A JP 2000056489 A JP2000056489 A JP 2000056489A
- Authority
- JP
- Japan
- Prior art keywords
- electrophotographic
- group
- electrophotographic photoreceptor
- photoreceptor
- charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は電子写真感光体並び
に該電子写真感光体を備えたプロセスカ−トリッジ及び
電子写真装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic photosensitive member, a process cartridge having the electrophotographic photosensitive member, and an electrophotographic apparatus.
【０００２】[0002]
【従来の技術】従来、電子写真感光体としては、セレ
ン、硫化カドミウム、酸化亜鉛等を主成分とする感光層
を有するの無機感光体が広く用いられてきた。これは、
ある程度の基礎特性は備えているが成膜が困難である、
可塑性が悪い、製造コストが高い等の問題がある。更に
無機光導電性材料は一般的に毒性が強く、製造上並びに
取り扱い上にも大きな制約があった。2. Description of the Related Art Conventionally, as an electrophotographic photosensitive member, an inorganic photosensitive member having a photosensitive layer containing selenium, cadmium sulfide, zinc oxide or the like as a main component has been widely used. this is,
Although it has some basic properties, it is difficult to form a film.
There are problems such as poor plasticity and high production cost. Furthermore, inorganic photoconductive materials are generally highly toxic, and have great restrictions on production and handling.
【０００３】一方、有機光導電性化合物を主成分とする
有機感光体は、無機感光体の上記欠点を補う多くの利点
を有し、これまで数多くの提案がされ、実用化されてき
ている。用いた電子写真感光体は、有機光導電性物質の
成膜性が良く、塗工によって生産できるため、極めて生
産性が高く、安価な電子写真感光体を提供できる利点を
有している。このような有機感光体としては、ポリ−Ｎ
−ビニルカルバゾ−ルに代表される光導電性ポリマ−等
と、２，４，７−トリニトロ−９−フルオレノン等のル
イス酸とから形成される電荷移動錯体を主体とする電子
写真感光体が提案されている。これらの有機光導電性ポ
リマ−は、無機光導電性ポリマ−に比べ軽量性、成膜性
等の点では優れているが、感度、耐久性、環境変化によ
る安定性等の面で無機光導電性材料に比べて劣ってお
り、必ずしも満足できるものではない。On the other hand, an organic photoreceptor containing an organic photoconductive compound as a main component has many advantages to compensate for the above-mentioned disadvantages of the inorganic photoreceptor, and many proposals have been made and put to practical use. The used electrophotographic photoreceptor has an advantage that it can provide an inexpensive electrophotographic photoreceptor with extremely high productivity because it has good film-forming properties of an organic photoconductive substance and can be produced by coating. As such an organic photoreceptor, poly-N
An electrophotographic photoreceptor mainly comprising a charge transfer complex formed from a photoconductive polymer represented by vinylcarbazole and a Lewis acid such as 2,4,7-trinitro-9-fluorenone has been proposed. ing. These organic photoconductive polymers are superior to inorganic photoconductive polymers in terms of lightness, film formability, etc., but are inferior in terms of sensitivity, durability, stability due to environmental changes, etc. It is inferior to the conductive material and is not always satisfactory.
【０００４】一方、電荷発生機能と電荷輸送機能とをそ
れぞれ別々の物質に分担させた機能分離型電子写真感光
体が、従来の有機感光体の欠点とされていた感度や耐久
性に著しい改善をもたらした。このような機能分離型感
光体は、電荷発生物質と電荷輸送物質の各々の材料選択
範囲が広く、任意の特性を有する電子写真感光体を比較
的容易に作成できるという利点を有している。On the other hand, a function-separated type electrophotographic photoreceptor in which a charge generation function and a charge transport function are shared by different substances, respectively, has remarkably improved sensitivity and durability, which have been disadvantages of conventional organic photoreceptors. Brought. Such a function-separated type photoreceptor has an advantage that a material selection range of a charge generation material and a charge transport material is wide, and an electrophotographic photoreceptor having arbitrary characteristics can be relatively easily prepared.
【０００５】電荷発生物質としては、アゾ顔料、多環キ
ノン顔料、シアニン色素、スクエアリク酸染料、ピリリ
ウム塩系色素等が知られている。その中でもアゾ顔料は
耐光性が強い、電荷発生能力が大きい、材料合成が容易
等の点から多くの構造が提唱されている。As the charge generating substance, azo pigments, polycyclic quinone pigments, cyanine dyes, squaric acid dyes, pyrylium salt dyes and the like are known. Among them, many structures of azo pigments have been proposed from the viewpoints of high light resistance, high charge generation ability, easy material synthesis, and the like.
【０００６】一方、電荷輸送物質としては、例えば特公
昭５２−４１８８号公報記載のピラゾリン化合物、特公
昭５５−４２８８０号公報及び特開昭５５−５２０６３
号公報記載のヒドラゾン化合物、特開平３−２６１９８
５号公報、特開昭６１−１３２９５５号公報及び特開平
２−１９０８６２公報、特開平２−２９７５５９号公報
及び特開平５−８８３８９号公報記載のトリフェニルア
ミン化合物、特開昭５４−１５１９５５号公報及び特開
昭５８−１９８０４３号公報記載のスチルベン化合物等
が知られている。On the other hand, examples of charge transport materials include pyrazoline compounds described in JP-B-52-4188, JP-B-55-42880 and JP-A-55-52063.
Hydrazone compound described in JP-A-3-26198
5, JP-A-61-132555 and JP-A-2-190862, JP-A-2-297559 and JP-A-5-88389, and JP-A-54-151955. And stilbene compounds described in JP-A-58-198043 are known.
【０００７】これらの電荷輸送物質に要求されること
は、（１）光及び熱に対して安定であること、（２）コ
ロナ放電による発生するオゾン、ＮＯX 、硝酸等に対し
て安定であること、（３）高い電荷輸送能を有するこ
と、（４）有機溶剤、結着剤との相溶性が高いこと、
（５）製造が容易で安価であること等が挙げられる。ま
た近年の更なる高耐久化に伴い、耐久性向上のために感
光層上に保護層を設けたり、複写機やレ−ザ−ビ−ムプ
リンタ−等で感光体を長期保存すること等により、電荷
輸送層にクラックが生じたり、電荷輸送物質が結晶化、
相分離するという現象が生じ画像欠陥になることがあ
る。また、近年のデジタル化に対応した反転現像系で
は、一次帯電と転写帯電が逆極性のため、転写の有無に
より帯電性が異なるいわゆる転写メモリ−が生じ、画像
上濃度むらとして非常に現れやすくなっている。These charge transport materials are required to (1) be stable against light and heat, and (2) be stable against ozone, NO x , nitric acid and the like generated by corona discharge. (3) high charge transport ability, (4) high compatibility with organic solvents and binders,
(5) It is easy to manufacture and inexpensive. In addition, with the recent increase in durability, a protective layer is provided on the photosensitive layer to improve durability, or the photoconductor is stored for a long time by a copying machine, a laser beam printer, or the like. , The charge transport layer cracks or the charge transport material crystallizes,
The phenomenon of phase separation may occur, resulting in image defects. In addition, in a reversal developing system corresponding to recent digitization, since primary charging and transfer charging have opposite polarities, a so-called transfer memory having a different charging property depending on the presence or absence of transfer occurs, which is very likely to appear as density unevenness on an image. ing.
【０００８】[0008]
【発明が解決しようとする課題】本発明の目的は、大き
な感度を有し、しかも繰り返し使用時の電位の安定の維
持ができる、感光層上に保護層を設けたり、複写機やレ
−ザ−ビ−ムプリンタ−等で感光体を長期保存しても電
荷輸送層にクラックが生じたり、電荷輸送物質の結晶化
等が生じない、反転現像系でも転写メモリ−が生じにく
い電子写真感光体を提供すること、製造が容易で、か
つ、安価に提供できる新規な有機光導電性化合物を提供
すること、また該電子写真感光体を用いたプロセスカ−
トリッジ並びに電子写真装置を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a protective layer on a photosensitive layer, a copier or a laser, which has high sensitivity and can maintain a stable electric potential during repeated use. -Electrophotographic photoreceptor that does not cause cracks in the charge transport layer or crystallization of the charge transport material even when the photoreceptor is stored for a long period of time with a beam printer or the like, and hardly causes transfer memory even in a reversal development system. To provide a novel organic photoconductive compound which is easy to manufacture and can be provided at a low cost, and a process card using the electrophotographic photoreceptor.
An object of the present invention is to provide a cartridge and an electrophotographic apparatus.
【０００９】[0009]
【請求項１】 導電性支持体上に感光層を有する電子写
真感光体において、該感光層が下記一般式（１）で示さ
れる化合物を含有することを特徴とする電子写真感光
体。一般式（１）1. An electrophotographic photosensitive member having a photosensitive layer on a conductive support, wherein the photosensitive layer contains a compound represented by the following general formula (1). General formula (1)
【化２】 式中、Ａｒ1 及びＡｒ4 は置換基を有してもよいアリ−
ル基、Ａｒ2 及びＡｒ3 は置換基を有してもよいフルオ
レニル基、Ｒ1 は水素原子、ハロゲン原子、シアノ基、
ニトロ基、アルキル基、アルコキシ基またはアリ−ルオ
キシ基を示す。なお、Ａｒ1 とＡｒ4 及びＡｒ2 とＡｒ
3 は各々同一でも異なってもよい。Embedded image In the formula, Ar 1 and Ar 4 each represent an aryl which may have a substituent.
, Ar 2 and Ar 3 are a fluorenyl group which may have a substituent, R 1 is a hydrogen atom, a halogen atom, a cyano group,
It represents a nitro group, an alkyl group, an alkoxy group or an aryloxy group. Note that Ar 1 and Ar 4 and Ar 2 and Ar 4
3 may be the same or different.
【００１０】また、本発明は、前記本発明の電子写真感
光体、及び帯電手段、現像手段、クリ−ニング手段から
なる群より選ばれる少なくとも一つの手段を一体に支持
し、電子写真装置本体に着脱自在であることを特徴とす
るプロセスカ−トリッジから構成される。According to the present invention, there is provided an electrophotographic photoreceptor of the present invention, and at least one unit selected from the group consisting of a charging unit, a developing unit and a cleaning unit. It is composed of a process cartridge characterized by being detachable.
【００１１】また、本発明は、前記本発明の電子写真感
光体、帯電手段、像露光手段、現像手段及び転写手段を
有することを特徴とする電子写真装置から構成される。Further, the present invention comprises an electrophotographic apparatus comprising the electrophotographic photoreceptor of the present invention, a charging unit, an image exposing unit, a developing unit and a transferring unit.
【００１２】[0012]
【発明の実施の形態】一般式（１）中、Ａｒ1 及びＡｒ
4 のアリ−ル基としては、フェニル、ナフチル、ピレニ
ル、フルオレニル、アセナフチレニル、アセナフテニ
ル、フェナントリル、フルオラン及びナフタセニル等の
基が挙げられる。Ａｒ1 〜Ａｒ4 の有してもよい置換基
としては、メチル、エチル、プロピル、ブチル等のアル
キル基、メトキシ、エトキシ、プロポキシ等のアルコキ
シ基、フェニルオキシ、ナフチルオキシ等のアリ−ルオ
キシ基、フェニル、ナフチル等のアリ−ル基、フッ素原
子、塩素原子、臭素原子、ヨウ素原子等のハロゲン原
子、シアノ基及びニトロ基等が挙げられる。BEST MODE FOR CARRYING OUT THE INVENTION In the general formula (1), Ar 1 and Ar
Examples of the aryl group 4 include groups such as phenyl, naphthyl, pyrenyl, fluorenyl, acenaphthenyl, acenaphthenyl, phenanthryl, fluoran, and naphthacenyl. Examples of the substituent which Ar 1 to Ar 4 may have include alkyl groups such as methyl, ethyl, propyl and butyl, alkoxy groups such as methoxy, ethoxy and propoxy, aryloxy groups such as phenyloxy and naphthyloxy, Aryl groups such as phenyl and naphthyl; halogen atoms such as fluorine, chlorine, bromine and iodine; cyano and nitro;
【００１３】なお、Ａｒ1 とＡｒ4 及びＡｒ2 とＡｒ3
は各々同一でも異なってもよい。It should be noted that Ar 1 and Ar 4 and Ar 2 and Ar 3
May be the same or different.
【００１４】Ｒ1 は、水素原子、フッ素原子、塩素原
子、臭素原子、ヨウ素原子等のハロゲン原子、シアノ
基、ニトロ基、メチル、エチル、プロピル、ブチル等の
アルキル基、メトキシ、エトキシ、プロポキシ等のアル
コキシ基、フェニルオキシ、ナフチルオキシ等のアリ−
ルオキシ基、フェニル、ナフチル等のアリ−ル基を示
す。R 1 is a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, a halogen atom such as an iodine atom, a cyano group, a nitro group, an alkyl group such as methyl, ethyl, propyl, butyl, etc., methoxy, ethoxy, propoxy, etc. Aryl groups such as phenyloxy, naphthyloxy, etc.
And an aryl group such as a ruoxy group, phenyl and naphthyl.
【００１５】以下に一般式（１）で示される化合物につ
いてその代表例を表１〜５に掲げる、ただし、これ等の
化合物に限定されるものではない。The typical examples of the compound represented by the general formula (1) are shown in Tables 1 to 5, but are not limited to these compounds.
【００１６】[0016]
【表１】 [Table 1]
【表２】 [Table 2]
【表３】 [Table 3]
【表４】 [Table 4]
【表５】 [Table 5]
【００１７】本発明の電子写真感光体は、一般式（１）
で示されるトリアリ−ルアミン化合物からなる電荷輸送
物質と適当な電荷発生物質を組み合わせて構成される。
感光層の構成としては、例えば次に示す形態が挙げられ
る。 （１）電荷発生物質を含有する層／電荷輸送物質を含有
する層 （２）電荷輸送物質を含有する層／電荷発生物質を含有
する層 （３）電荷発生物質と電荷輸送物質を含有する層 （４）電荷発生物質を含有する層／電荷発生物質と電荷
輸送物質を含有する層The electrophotographic photoreceptor of the present invention has the general formula (1)
And a suitable charge generating substance.
Examples of the structure of the photosensitive layer include the following forms. (1) Layer containing charge generation material / layer containing charge transport material (2) Layer containing charge transport material / layer containing charge generation material (3) Layer containing charge generation material and charge transport material (4) Layer containing charge generation material / layer containing charge generation material and charge transport material
【００１８】本発明の電子写真感光体は、一般式（１）
で示される化合物はいずれも正孔に対し高い輸送能を有
するため、上記形態の感光層における電荷輸送物質とし
て用いることができる。感光層の形態が（１）の場合は
負帯電、（２）の場合は正帯電が好ましく、（３）及び
（４）の場合は正、負いずれでも使用することができ
る。更に本発明の電子写真感光体では、接着性向上や電
荷注入制限のために、感光層の表面に保護層や絶縁層を
設けてもよい。なお、本発明の構成は、上記基本構成に
限定されるものではない。なお、上記基本構成のうち、
特に（１）の形態が好ましく、以下に、更に詳細に説明
する。The electrophotographic photoreceptor of the present invention has the general formula (1)
Any of the compounds represented by the formula (1) has a high hole-transporting ability, and therefore can be used as a charge-transporting substance in the photosensitive layer of the above embodiment. In the case of (1), the photosensitive layer is preferably negatively charged, in the case of (2), positively charged, and in the case of (3) and (4), both positively and negatively can be used. Further, in the electrophotographic photoreceptor of the present invention, a protective layer or an insulating layer may be provided on the surface of the photosensitive layer in order to improve adhesion and restrict charge injection. The configuration of the present invention is not limited to the above basic configuration. In addition, among the above basic configurations,
In particular, the mode (1) is preferable, and will be described in more detail below.
【００１９】本発明における導電性支持体としては、例
えば下記の形態のものを挙げることができる。 （１）アルミニウム、アルミニウム合金、ステンレス、
銅等の金属を板形状またはドラム形状にしたもの。 （２）ガラス、樹脂、紙等の非導電性支持体や前記
（１）の導電性支持体上にアルミニウム、パラジウム、
ロジウム、金、白金等の金属を蒸着もしくはラミネ−ト
することにより薄膜形成したもの。 （３）ガラス、樹脂、紙等の非導電性支持体や前記
（１）の導電性支持体上に導電性高分子、酸化スズ、酸
化インジウム等の導電性化合物の層を蒸着あるいは塗布
することにより形成したもの。Examples of the conductive support in the present invention include the following forms. (1) Aluminum, aluminum alloy, stainless steel,
Plates or drums made of metal such as copper. (2) Aluminum, palladium, etc. on a non-conductive support such as glass, resin, paper or the conductive support of the above (1).
A thin film formed by depositing or laminating a metal such as rhodium, gold or platinum. (3) Depositing or coating a layer of a conductive compound such as a conductive polymer, tin oxide, or indium oxide on a non-conductive support such as glass, resin, or paper or the conductive support described in (1) above. What was formed by
【００２０】本発明において用いられる電荷発生物質と
しては、例えば下記のような物質が挙げられる。これ等
の電荷発生物質は単独で用いてもよく、２種類以上組み
合わせてもよい。 （１）モノアゾ、ビスアゾ、トリスアゾ等のアゾ系顔料 （２）インジゴ、チオインジゴ等のインジゴ系顔料 （３）金属フタロシアニン、非金属フタロシアニン等の
フタロシアニン系顔料 （４）ペリレン酸無水物、ペリレン酸イミド等のペリレ
ン系顔料 （５）アントラキノン、ピレンキノン等の多環キノン系
顔料 （６）スクワリリウム色素 （７）ピリリウム塩、チオピリリウム塩類 （８）トリフェニルメタン系色素 （９）セレン、非晶質シリコン等の無機物質Examples of the charge generating substance used in the present invention include the following substances. These charge generating substances may be used alone or in combination of two or more. (1) Azo pigments such as monoazo, bisazo and trisazo (2) Indigo pigments such as indigo and thioindigo (3) Phthalocyanine pigments such as metal phthalocyanine and nonmetal phthalocyanine (4) Perylene anhydride, perylene imide and the like (5) Polycyclic quinone pigments such as anthraquinone and pyrenequinone (6) Squarylium dyes (7) Pyrylium salts and thiopyrylium salts (8) Triphenylmethane dyes (9) Inorganic such as selenium and amorphous silicon material
【００２１】電荷発生層は、前記のような電荷発生物質
を適当な結着剤に分散し、これを導電性支持体上に塗工
することにより形成することができる。また、導電性支
持体上に蒸着、スパッタ、ＣＶＤ等の乾式法で薄膜を形
成することによっても形成することができる。The charge generation layer can be formed by dispersing the above-described charge generation substance in a suitable binder and applying the resultant to a conductive support. Further, it can also be formed by forming a thin film on a conductive support by a dry method such as evaporation, sputtering, or CVD.
【００２２】上記結着剤としては、広範囲な結着性樹脂
から選択でき、例えば、ポリカ−ボネ−ト、ポリエステ
ル、ポリアリレ−ト、ブチラ−ル樹脂、ポリスチレン、
ポリビニルアセタ−ル、ジアリルフタレ−ト樹脂、アク
リル樹脂、メタクリル樹脂、酢酸ビニル樹脂、フェノ−
ル樹脂、シリコン樹脂、ポリスルホン、スチレン−ブタ
ジエン共重合体、アルキッド樹脂、エポキシ樹脂、尿素
樹脂、塩化ビニル−酢酸ビニル共重合体等が挙げられる
が、これらの樹脂に限定されるものではない。これら樹
脂は単独または共重合体ポリマ−として１種または２種
以上混合して用いてもよい。The binder can be selected from a wide range of binder resins, for example, polycarbonate, polyester, polyarylate, butyral resin, polystyrene, and the like.
Polyvinyl acetal, diallyl phthalate resin, acrylic resin, methacrylic resin, vinyl acetate resin, phenol
Styrene, polysulfone, styrene-butadiene copolymer, alkyd resin, epoxy resin, urea resin, vinyl chloride-vinyl acetate copolymer, and the like, but are not limited to these resins. These resins may be used singly or as a copolymer, alone or as a mixture of two or more.
【００２３】電荷発生層中に含有する樹脂は８０重量％
以下、好ましくは４０重量％以下である。また、電荷発
生層の膜厚は５μｍ以下、特には０．０１〜２μｍの薄
膜層とすることが好ましい。また、電荷発生層に種々の
増感剤を添加してもよい。80% by weight of resin contained in the charge generation layer
Or less, preferably 40% by weight or less. Further, the thickness of the charge generation layer is preferably 5 μm or less, particularly preferably 0.01 to 2 μm. Various sensitizers may be added to the charge generation layer.
【００２４】電荷輸送層は、少なくとも前記一般式
（１）で示される化合物と適当な結着剤（結着性樹脂）
とを組み合わせて形成することができる。ここで電荷輸
送層に用いられる結着剤としては、前記電荷発生層に用
いられている結着剤が挙げられ、更にポリビニルカルバ
ゾ−ル、ポリビニルアントラセン等の光導電性高分子化
合物が挙げられる。The charge transport layer comprises at least a compound represented by the above general formula (1) and a suitable binder (binding resin).
Can be formed in combination. Here, examples of the binder used in the charge transport layer include the binder used in the charge generation layer, and further include photoconductive polymer compounds such as polyvinyl carbazole and polyvinyl anthracene. .
【００２５】この結着剤と一般式（１）で示される化合
物との配合割合は、結着剤１００重量部あたり、前記一
般式（１）で示される化合物を１０〜５００重量部とす
ることが好ましい。電荷輸送層は、電荷発生層と電気的
に接続されており、電界の存在下で電荷発生層から注入
された電荷キヤリアを受け取るとともに、これらの電荷
キヤリアを表面まで輸送できる機能を有している。この
電荷輸送層は電荷キヤリアを輸送できる限界があるの
で、必要以上に膜厚を厚くすることができないが、５〜
４０μｍ、特には１０〜３０μｍの範囲が好ましい。The compounding ratio of the binder and the compound represented by the general formula (1) is such that the compound represented by the general formula (1) is 10 to 500 parts by weight per 100 parts by weight of the binder. Is preferred. The charge transport layer is electrically connected to the charge generation layer, and has a function of receiving charge carriers injected from the charge generation layer in the presence of an electric field and transporting these charge carriers to the surface. . Since the charge transport layer has a limit to transport the charge carrier, it cannot be made thicker than necessary.
It is preferably in the range of 40 μm, particularly 10 to 30 μm.
【００２６】更に、電荷輸送層中に酸化防止剤、紫外線
吸収剤、可塑剤または公知の電荷輸送物質を必要に応じ
て添加することもできる。Further, an antioxidant, an ultraviolet absorber, a plasticizer, or a known charge transport substance can be added to the charge transport layer as needed.
【００２７】このような電荷輸送層を形成する際は、適
当な有機溶媒を用い、浸漬コ−ティング法、スプレ−コ
−ティング法、スピンナ−コ−ティング法、ロ−ラコ−
ティング法、マイヤ−バ−コ−ティング法、ブレ−ドコ
−ティング法等のコ−ティング法を用いて行うことがで
きる。In forming such a charge transport layer, an appropriate organic solvent is used, and a dipping coating method, a spray coating method, a spin coating method, a roller coating method, or the like is used.
The coating can be performed using a coating method such as a coating method, a myrbar coating method, or a blade coating method.
【００２８】次に、本発明のプロセスカ−トリッジ並び
に電子写真装置について説明する。図１に本発明の電子
写真感光体を有するプロセスカ−トリッジを有する電子
写真装置の概略構成を示す。図において、１はドラム状
の本発明の電子写真感光体であり、軸２を中心に矢印方
向に所定の周速度で回転駆動される。感光体１は回転過
程において、一次帯電手段３によりその周面に正または
負の所定電位の均一帯電を受け、次いで、スリット露光
やレ−ザ−ビ−ム走査露光等の像露光手段（不図示）か
らの画像露光光４を受ける。こうして感光体１の周面に
静電潜像が順次形成されていく。Next, the process cartridge and the electrophotographic apparatus of the present invention will be described. FIG. 1 shows a schematic configuration of an electrophotographic apparatus having a process cartridge having an electrophotographic photosensitive member of the present invention. In the figure, reference numeral 1 denotes a drum-shaped electrophotographic photosensitive member of the present invention, which is driven to rotate around a shaft 2 at a predetermined peripheral speed in a direction indicated by an arrow. In the rotation process, the photosensitive member 1 is uniformly charged with a predetermined positive or negative potential on its peripheral surface by the primary charging means 3, and then the image exposure means (such as slit exposure or laser beam scanning exposure) is used. (See FIG. 1). Thus, an electrostatic latent image is sequentially formed on the peripheral surface of the photoconductor 1.
【００２９】形成された静電潜像は、次いで現像手段５
によりトナ−現像され、現像されたトナ−現像像は、不
図示の給紙部から感光体１と転写手段６との間に感光体
１の回転と同期取りされて給送された転写材７に、転写
手段６により順次転写されていく。像転写を受けた転写
材７は感光体面から分離されて像定着手段８へ導入され
て像定着を受けることにより複写物（コピ−）として装
置外へプリントアウトされる。像転写後の感光体１の表
面は、クリ−ニング手段９によって転写残りトナ−の除
去を受けて清浄面化され、更に前露光手段（不図示）か
らの前露光光１０により除電処理がされた後、繰り返し
画像形成に使用される。なお、一次帯電手段３が帯電ロ
−ラ−等を用いた接触帯電手段である場合は、前露光は
必ずしも必要ではない。The formed electrostatic latent image is then transferred to developing means 5
Is transferred to the transfer material 6 from the paper supply unit (not shown) and fed between the photosensitive member 1 and the transfer means 6 in synchronization with the rotation of the photosensitive member 1. Are sequentially transferred by the transfer means 6. The transfer material 7 having undergone the image transfer is separated from the photoreceptor surface, introduced into the image fixing means 8 and subjected to image fixing, thereby being printed out as a copy (copy) outside the apparatus. The surface of the photoreceptor 1 after the image transfer is cleaned and cleaned by removing the transfer residual toner by the cleaning means 9, and further subjected to a static elimination process by the pre-exposure light 10 from the pre-exposure means (not shown). After that, it is repeatedly used for image formation. When the primary charging means 3 is a contact charging means using a charging roller or the like, pre-exposure is not necessarily required.
【００３０】本発明においては、上述の感光体１、一次
帯電手段３、現像手段５及びクリ−ニング手段９等の構
成要素のうち、複数のものをプロセスカ−トリッジとし
て一体に結合して構成し、このプロセスカ−トリッジを
複写機やレ−ザ−ビ−ムプリンタ−等の電子写真装置本
体に対して着脱可能に構成してもよい。例えば一次帯電
手段３、現像手段５及びクリ−ニング手段９の少なくと
も１つを感光体１と共に一体に支持してカ−トリッジ化
し、装置本体のレ−ル１２等の案内手段を用いて装置本
体に着脱可能なプロセスカ−トリッジ１１とすることが
できる。また、画像露光光４は、電子写真装置が複写機
やプリンタ−である場合には、原稿からの反射光や透過
光を用いる、あるいは、センサ−で原稿を読み取り、信
号化し、この信号に従って行われるレ−ザ−ビ−ムの走
査、ＬＥＤアレイの駆動及び液晶シャッタ−アレイの駆
動等により照射される光である。In the present invention, a plurality of components such as the photoreceptor 1, the primary charging means 3, the developing means 5 and the cleaning means 9 are integrally connected as a process cartridge. Alternatively, the process cartridge may be configured to be detachable from a main body of an electrophotographic apparatus such as a copying machine or a laser beam printer. For example, at least one of the primary charging means 3, the developing means 5 and the cleaning means 9 is integrally supported together with the photoreceptor 1 to form a cartridge, and the apparatus main body is guided by a guide means such as the rail 12 of the apparatus main body. The process cartridge 11 can be detachably mounted on the cartridge. When the electrophotographic apparatus is a copier or a printer, the image exposure light 4 uses reflected light or transmitted light from the original, or reads the original with a sensor and converts it into a signal. This is light emitted by scanning of the laser beam, driving of the LED array, driving of the liquid crystal shutter array, and the like.
【００３１】[0031]
【実施例】実施例１ 下記構造式を有するビスアゾ顔料２．５ｇをEXAMPLE 1 2.5 g of a bisazo pigment having the following structural formula
【化３】 ブチラ−ル樹脂（ブチラ−ル化度６８ｍｏｌ％）３．１
ｇをシクロヘキサノン８０ｍｌに溶解した液とともにサ
ンドミルで分散し、塗工液を調製した。この塗工液をア
ルミシ−ト上に乾燥後の膜厚が０．１５μｍとなるよう
にマイヤ−バ−で塗布し、電荷発生層を形成した。Embedded image Butyral resin (degree of butyralization: 68 mol%) 3.1
g was dispersed in a sand mill together with a liquid dissolved in 80 ml of cyclohexanone to prepare a coating liquid. The coating liquid was applied on an aluminum sheet with a Myer bar so that the film thickness after drying was 0.15 μm to form a charge generation layer.
【００３２】次に、電荷輸送物質（電荷輸送化合物）と
して前記例示化合物１を８ｇとポリカ−ボネ−ト樹脂
（重量平均分子量３３、０００）９ｇをモノクロルベン
ゼン７２ｇに溶解し、この液を先の電荷発生層の上にマ
イヤ−バ−で塗布し、乾燥後の膜厚が１８μｍの電荷輸
送層を形成し、電子写真感光体を作成した。Next, 8 g of Exemplified Compound 1 and 9 g of a polycarbonate resin (weight average molecular weight: 33,000) were dissolved in 72 g of monochlorobenzene as a charge transport material (charge transport compound), and this solution was added to the above solution. A charge-transporting layer having a thickness of 18 μm after drying was applied on the charge-generating layer with a Myrbar, and an electrophotographic photosensitive member was prepared.
【００３３】作成した電子写真感光体を川口電機（株）
製静電複写紙試験装置Ｍｏｄｅｌ−ＳＰ−４２８を用い
てスタチック方式で−５ＫＶでコロナ帯電し、暗所で１
秒間保持した後、照度２０Ｌｕｘで露光し帯電特性を調
べた。The produced electrophotographic photosensitive member was used by Kawaguchi Electric Co., Ltd.
Electrostatic paper tester Model-SP-428 was used to charge corona statically at -5 KV by static method, and 1
After holding for 2 seconds, exposure was performed at an illuminance of 20 Lux, and charging characteristics were examined.
【００３４】帯電特性としては、表面電位（Ｖ0 ）と１
秒間暗減衰させた時の電位（Ｖ1 ）を１／５に減衰する
のに必要な露光量（Ｅ1/5 ）を測定した。The charging characteristics include surface potential (V 0 ) and 1
The exposure amount (E 1/5 ) required to attenuate the potential (V 1 ) after dark decay for 2 seconds to 1/5 was measured.
【００３５】更に、繰り返し使用した時の明部電位と暗
部電位の変動を測定するために本実施例で作成した感光
体を、キヤノン（株）製ＰＰＣ複写機ＮＰ−３８２５の
感光体ドラム様シリンダ−に貼り付けて、同機で３，０
００枚複写を行い、初期と３，０００枚複写後の明部電
位（ＶL ）の変動分△ＶL 及び暗部電位（ＶD ）の変動
分△ＶD を測定した。なお、初期のＶD とＶL はそれぞ
れ−７００Ｖ、−２００Ｖとなるように設定した。Further, in order to measure the fluctuation of the light portion potential and the dark portion potential when the photoreceptor is repeatedly used, the photoreceptor prepared in this embodiment is replaced with a photoreceptor drum-like cylinder of a PPC copier NP-3825 manufactured by Canon Inc. −
Performed 00 sheet copying were measured variation △ V D of the variation of the initial and the light portion potential after 3,000 sheet copying (V L) △ V L and the dark potential (V D). The initial V D and V L were set to be -700 V and -200 V, respectively.
【００３６】また、感光層のクラックの促進試験とし
て、前記のようにして作成した電子写真感光体の表面に
指油を付着させ、常温常圧下で８時間放置し、感光層に
クラックが生じているか否かを観察した。As a test for accelerating the cracking of the photosensitive layer, finger oil was adhered to the surface of the electrophotographic photosensitive member prepared as described above, and left standing at normal temperature and normal pressure for 8 hours. It was observed whether or not.
【００３７】また、電荷輸送物質の結晶化の促進試験と
して前記のようにして作成した電子写真感光体の表面に
指油を付着させ、７５℃で１週間放置し、電荷輸送物質
の結晶化が生じているか否かを観察した。As a test for accelerating the crystallization of the charge transport material, finger oil was adhered to the surface of the electrophotographic photosensitive member prepared as described above, and left at 75 ° C. for one week. It was observed whether it had occurred.
【００３８】実施例２〜８、比較例１〜３ この実施例及び比較例においては、実施例１で用いた例
示化合物１の電荷輸送化合物に代えて、実施例において
は、後記表１に示す化合物、比較例においては、下記に
示す化合物を用いた他は、実施例１と同様の方法によっ
て電子写真感光体を作成した。そして各電子写真感光体
の電子写真特性、感光層のクラック及び電荷輸送物質の
結晶化の評価を実施例１と同様の方法によって評価し
た。Examples 2 to 8 and Comparative Examples 1 to 3 In these examples and comparative examples, the charge transporting compound of Exemplified Compound 1 used in Example 1 is replaced with the following Table 1. An electrophotographic photoreceptor was prepared in the same manner as in Example 1, except that the following compounds were used in the compounds and comparative examples. The electrophotographic properties of each electrophotographic photoreceptor, the cracks in the photosensitive layer, and the crystallization of the charge transporting substance were evaluated by the same method as in Example 1.
【００３９】比較例１で用いる化合物ＡCompound A used in Comparative Example 1
【化４】 比較例２で用いる化合物ＢEmbedded image Compound B used in Comparative Example 2
【化５】 比較例３で用いる化合物ＣEmbedded image Compound C used in Comparative Example 3
【化６】 Embedded image
【００４０】実施例１〜８の評価結果を表６及び７に、
比較例１〜３の評価結果を表８及び９に示す。The evaluation results of Examples 1 to 8 are shown in Tables 6 and 7,
Tables 8 and 9 show the evaluation results of Comparative Examples 1 to 3.
【表６】 [Table 6]
【表７】 [Table 7]
【表８】 [Table 8]
【表９】 表６〜表９から、本発明の実施例は比較例に比べ、感光
層のクラック及び電荷輸送物質の結晶化が生じず、か
つ、耐久時の電位変動も小さく、極めて優れていること
が分かる。[Table 9] From Tables 6 to 9, it can be seen that Examples of the present invention are excellent in that no cracks in the photosensitive layer and no crystallization of the charge transporting material occur, and that the potential fluctuation during durability is small, as compared with Comparative Examples. .
【００４１】実施例９ アルミニウム支持体上に、Ｎ−メトキシメチル化６ナイ
ロン樹脂（重量平均分子量２９，０００）５．０ｇとア
ルコ−ル可溶性共重合ナイロン樹脂（重量平均分子量３
２，０００）１３ｇをメタノ−ル９５ｇに溶解した液を
マイヤ−バ−で塗布し、乾燥後の膜厚が１．０μｍの下
引き層を形成した。Example 9 5.0 g of N-methoxymethylated 6 nylon resin (weight average molecular weight 29,000) and an alcohol-soluble copolymerized nylon resin (weight average molecular weight 3
A solution prepared by dissolving 13 g of (2,000) in 95 g of methanol was applied with a Myer bar to form an undercoat layer having a thickness of 1.0 μm after drying.
【００４２】次にオキシチタニルフタロシアニンを１０
ｇをポリビニルブチラ−ル樹脂（ブチラ−ル化率６５
％、重量平均分子量３０，０００）５．３ｇとジオキサ
ン９０ｇをボ−ルミルで４８時間分散した。この分散液
を下引き層の上にブレ−ドコ−ティングによる塗布、乾
燥後の膜厚が０．１２μｍの電荷発生層を形成した。Next, oxytitanyl phthalocyanine was added to 10
g of polyvinyl butyral resin (butyralization ratio 65
%, Weight average molecular weight 30,000) and 90 g of dioxane were dispersed in a ball mill for 48 hours. This dispersion was coated on the undercoat layer by blade coating and dried to form a charge generation layer having a thickness of 0.12 μm.
【００４３】次に、例示化合物３の８ｇをポリカ−ボネ
−トＺ型樹脂（重量平均分子量４０，０００）８．５ｇ
をモノクロルベンゼン７２ｇに溶解し、この液を電荷発
生層の上にブレ−ヂコ−ティングによる塗布、乾燥後の
膜厚が２０μｍの電荷輸送層を形成し、電子写真感光体
を作成した。Next, 8 g of Exemplified Compound 3 was mixed with 8.5 g of polycarbonate Z type resin (weight average molecular weight of 40,000).
Was dissolved in 72 g of monochlorobenzene, and this solution was applied on the charge generation layer by spray coating and dried to form a charge transport layer having a thickness of 20 μm, thereby producing an electrophotographic photosensitive member.
【００４４】作成した電子写真感光体に−５ＫＶのコロ
ナ放電を行った。この時の表面電位（初期電位Ｖ0 ）を
測定した。更に、この感光体を１秒間暗所で放置した後
の表面電位を測定した。感度は暗減衰した後の電位Ｖ1
を１／６に減衰するのに必要な露光量（Ｅ1/6 ：μＪ／
ｃｍ2 ）を測定することによって評価した。この際、光
源としてガリウム／アルミニウム／ヒ素の三元系半導体
レ−ザ−（出力：５ｍＷ：発信波長７８Ｏｍｍ）を用い
た。The prepared electrophotographic photosensitive member was subjected to a corona discharge of -5 KV. At this time, the surface potential (initial potential V 0 ) was measured. Further, the surface potential of this photoconductor after leaving it in a dark place for 1 second was measured. The sensitivity is the potential V 1 after dark decay.
Exposure (E 1/6 : μJ /
cm 2 ). At this time, a ternary semiconductor laser of gallium / aluminum / arsenic (output: 5 mW: emission wavelength: 780 mm) was used as a light source.
【００４５】次に、同上の半導体レ−ザ−を備えた反転
現像方式の電子写真方式プリンタ−であるレ−ザ−ビ−
ムプリンタ−（キヤノン（株）製ＬＢＰ＝ＳＸの改造
機）に上記感光体を取り付けて、転写電流ＯＦＦ時の一
次帯電電圧をＶd1、転写電流ＯＮ時の一次帯電電圧をＶ
d2として、いわゆる転写メモリ−（Ｖd1−Ｖd2）を測定
し、その画像形成テストを行った。条件は以下のとおり
である。一次帯電後の表面電位：−７００Ｖ、像露光後
の表面電位：−１５０Ｖ（露光量１．０μＪ／ｃｍ
2 ）、転写電位：＋７００Ｖ、現像極性：負極性、プロ
セススピ−ド：４７ｍｍ／ｓｅｃ、現像条件（現像バイ
アス）：−４５０Ｖ、像露光後スキャン方式：イメ−ジ
スキャン、一次帯電前露光：８．０Ｌｕｘ・ｓｅｃの赤
色全面露光、画像形成はレ−ザ−ビ−ムを文字信号及び
画像信号に従ってラインスキャンして行ったが、字、画
像ともに良好なプリントが得られた。Next, a laser beam printer, which is an electrophotographic printer of the reversal development type equipped with the semiconductor laser of the above, is used.
The above photoreceptor is mounted on a printer (a modified product of LBP = SX manufactured by Canon Inc.), and the primary charging voltage when the transfer current is OFF is V d1 , and the primary charging voltage when the transfer current is ON is V.
As d2 , a so-called transfer memory ( Vd1 - Vd2 ) was measured, and an image forming test was performed. The conditions are as follows. Surface potential after primary charging: -700 V, surface potential after image exposure: -150 V (exposure amount: 1.0 μJ / cm)
2 ), transfer potential: +700 V, development polarity: negative polarity, process speed: 47 mm / sec, development condition (development bias): -450 V, scan method after image exposure: image scan, exposure before primary charging: 8. The red light exposure of 0 Lux · sec and image formation were performed by line-scanning the laser beam according to the character signal and the image signal, and good prints were obtained for both characters and images.
【００４６】また、上記と同様にして作成した電子写真
感光体の、感光層のクラック及び電荷輸送物質の結晶化
の評価を実施例１と同様の方法によって評価した。結果
を表１０及び１１に示す。The electrophotographic photoreceptor prepared in the same manner as above was evaluated for cracks in the photosensitive layer and crystallization of the charge transporting substance in the same manner as in Example 1. The results are shown in Tables 10 and 11.
【００４７】実施例１０−１３ 実施例９で用いた例示化合物３に代えて、後記表１３に
示す化合物を用いた他は、実施例９と同様にして電子写
真感光体を作成し、各電子写真感光体の電子写真特性、
転写メモリ−、感光層のクラック及び電荷輸送物質の結
晶化の評価を実施例９と同様の方法によって評価した。
結果を表１０及び１１に示す。Examples 10-13 An electrophotographic photoreceptor was prepared in the same manner as in Example 9 except that compounds shown in Table 13 below were used instead of Exemplified Compound 3 used in Example 9, and Electrophotographic characteristics of photoreceptors,
The same method as in Example 9 was used to evaluate the transfer memory, the cracks in the photosensitive layer, and the crystallization of the charge transport material.
The results are shown in Tables 10 and 11.
【００４８】比較例４〜６ 実施例９で用いた例示化合物５に代えて、下記に示す化
合物を用いた他は、実施例９と同様の方法によって電子
写真感光体を作成した。そして各電子写真感光体の電子
写真特性、転写メモリ−、感光層のクラック及び電荷輸
送物質の結晶化の評価を実施例９と同様の方法によって
評価した。結果を表１０及び１１に示す。Comparative Examples 4 to 6 Electrophotographic photosensitive members were prepared in the same manner as in Example 9 except that the following compounds were used instead of Exemplified Compound 5 used in Example 9. Then, the electrophotographic characteristics of each electrophotographic photoreceptor, the transfer memory, the cracks in the photosensitive layer, and the crystallization of the charge transporting substance were evaluated by the same method as in Example 9. The results are shown in Tables 10 and 11.
【００４９】比較例４で用いる化合物ＤCompound D used in Comparative Example 4
【化７】 比較例５で用いる化合物ＥEmbedded image Compound E used in Comparative Example 5
【化８】 比較例６で用いる化合物ＦEmbedded image Compound F used in Comparative Example 6
【化９】 Embedded image
【００５０】[0050]
【表１０】 [Table 10]
【表１１】 [Table 11]
【００５１】実施例１４ ４−（４−ジメチルアミノフェノ−ル）−２，６−ジフ
ェニルチアピリリウムパ−クレ−ト４．６ｇと前記例示
化合物２の６ｇを共重合ポリエステル樹脂（重量平均分
子量４４，０００）のトルエン（５０重量部）−ジオキ
サン（５０重量部）溶液１００ｇに混合し、ボ−ルミル
で２６時間分散した。この分散液をアルミニウムシ−ト
上にマイヤ−バ−で塗布し１２０℃で１時間乾燥させ、
膜厚１３μｍの感光層を形成し、電子写真感光体を作成
した。作成した電子写真感光体の初期特性を実施例１と
同様の方法で測定した。結果を示す。 Ｖ0 ＝−７００Ｖ、Ｖ1 ＝−６９５Ｖ、Ｅ1/5 ＝３．５
Ｌｕｘ・ｓｅｃ また、実施例１と同様に感光層のクラック及び電荷輸送
物質の結晶化の促進試験を同様に行ったところ、クラッ
クに関しては８時間後も全く認められず、また結晶化に
関しても１週間後でも全く認められなかった。Example 14 4.6 g of 4- (4-dimethylaminophenol) -2,6-diphenylthiapyrylium parcrete and 6 g of the above-mentioned compound 2 were copolymerized with a polyester resin (weight average molecular weight). 44,000) in 100 g of a toluene (50 parts by weight) -dioxane (50 parts by weight) solution and dispersed in a ball mill for 26 hours. This dispersion was applied to an aluminum sheet with a Myer bar and dried at 120 ° C. for 1 hour.
A photosensitive layer having a thickness of 13 μm was formed to prepare an electrophotographic photosensitive member. The initial characteristics of the produced electrophotographic photosensitive member were measured in the same manner as in Example 1. The results are shown. V 0 = -700V, V 1 = -695V, E 1/5 = 3.5
Lux · sec In addition, a crack in the photosensitive layer and a test for accelerating crystallization of the charge-transporting substance were performed in the same manner as in Example 1. As a result, no crack was observed at all after 8 hours. No evidence was found after a week.
【００５２】実施例１５ アルミニウム支持体上にアルコ−ル可溶性ナイロン（６
−６６−６１０−１２四元ナイロン共重合体）の３５５
メタノ−ル溶液を塗布、乾燥後の膜厚が１．５μｍの下
引き層を形成した。Example 15 Alcohol-soluble nylon (6
-66-610-12 quaternary nylon copolymer) 355
An undercoat layer having a thickness of 1.5 μm after coating with a methanol solution and drying was formed.
【００５３】次に、例示化合物１の９ｇとビスフェノ−
ルＡ型ポリカ−ボネ−ト樹脂（重量平均分子量３０，０
００）９ｇをモノクロルベンゼン（６０重量部）−ジク
ロロメタン（２０重量部）溶液８２ｇに溶解し、この液
を下引き層上にマイヤ−バ−で塗布、乾燥後の膜厚が１
９μｍの電荷輸送層を形成した。Next, 9 g of Exemplified Compound 1 and bispheno-
A-type polycarbonate resin (weight average molecular weight 30,0
(00) 9 g was dissolved in 82 g of a monochlorobenzene (60 parts by weight) -dichloromethane (20 parts by weight) solution, and this solution was applied on a subbing layer with a Myer bar, and the film thickness after drying was 1.
A 9 μm charge transport layer was formed.
【００５４】次に、下記構造式を有する顔料４ｇとNext, 4 g of a pigment having the following structural formula
【化１０】 ブチラ−ル樹脂（ブチラ−ル化度６５ｍｏｌ％）２．５
Ｇをテトラヒドロフラン６５ｍｌ中にサンドミルで分散
した。この分散液を電荷輸送層の上にマイヤ−バ−で塗
布、乾燥後の膜厚が１．０μｍの電荷発生層を形成し、
電子写真感光体を作成した。作成した電子写真感光体の
電子写真特性を実施例１と同様の方法で測定（ただし、
帯電はプラス帯電）した。結果を示す。 Ｖ0 ＝＋７００Ｖ、Ｖ1 ＝＋６９５Ｖ、Ｅ1/5 ＝２．８
Ｌｕｘ・ｓｅｃEmbedded image Butyral resin (butyralization degree 65 mol%) 2.5
G was dispersed in 65 ml of tetrahydrofuran by a sand mill. This dispersion was applied to the charge transport layer with a Myer bar, and a charge generation layer having a thickness of 1.0 μm after drying was formed.
An electrophotographic photoreceptor was prepared. The electrophotographic characteristics of the produced electrophotographic photosensitive member were measured by the same method as in Example 1 (however,
The charge was positive. The results are shown. V 0 = + 700 V, V 1 = + 695 V, E 1/5 = 2.8
Lux · sec
【００５５】[0055]
【発明の効果】本発明の電子写真感光体は、高感度であ
り、また繰り返し帯電、露光による連続画像形成に際し
て、明部電位と暗部電位の変動が小さく耐久性に優れて
いる。更に、反転現像系においても転写メモリ−が極め
て小さく、かつ、感光層のクラックや電荷輸送物質の結
晶化が極めて起こりにくいという顕著な効果を奏する。
また、プロセスカ−トリッジ及び電子写真装置に装着し
て同様に優れた効果を奏する。The electrophotographic photoreceptor of the present invention has high sensitivity, has small fluctuations in the light portion potential and the dark portion potential during continuous image formation by repeated charging and exposure, and has excellent durability. Further, even in the reversal developing system, a remarkable effect is obtained that the transfer memory is extremely small and cracks in the photosensitive layer and crystallization of the charge transport material are extremely unlikely to occur.
Also, it can be mounted on a process cartridge and an electrophotographic apparatus to achieve the same excellent effects.
【図１】本発明の電子写真感光体を有するプロセスカ−
トリッジを有する電子写真装置の概略構成を示す図。FIG. 1 shows a process car having an electrophotographic photoreceptor of the present invention.
FIG. 2 is a diagram illustrating a schematic configuration of an electrophotographic apparatus having a cartridge.
１ 本発明の電子写真感光体 ２ 軸 ３ 一次帯電手段 ４ 画像露光光 ５ 現像手段 ６ 転写手段 ７ 転写材 ８ 像定着手段 ９ クリ−ニング手段 １０ 前露光光 １１ プロセスカ−トリッジ １２ レ−ル DESCRIPTION OF SYMBOLS 1 Electrophotographic photoreceptor of this invention 2 axis 3 Primary charging means 4 Image exposure light 5 Developing means 6 Transfer means 7 Transfer material 8 Image fixing means 9 Cleaning means 10 Pre-exposure light 11 Process cartridge 12 Rail
───────────────────────────────────────────────────── フロントページの続き (72)発明者 國枝 光弘 東京都大田区下丸子３丁目30番２号 キヤ ノン株式会社内 Ｆターム(参考） 2H068 AA20 AA21 BA12 BA14 FC01 FC05 FC08 FC11 FC15 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuhiro Kunieda 3-30-2 Shimomaruko, Ota-ku, Tokyo F-term in Canon Inc. (reference) 2H068 AA20 AA21 BA12 BA14 FC01 FC05 FC08 FC11 FC15
Claims (3)
真感光体において、該感光層が下記一般式（１）で示さ
れる化合物を含有することを特徴とする電子写真感光
体。一般式（１） 【化１】 式中、Ａｒ1 及びＡｒ4 は置換基を有してもよいアリ−
ル基、Ａｒ2 及びＡｒ3 は置換基を有してもよいフルオ
レニル基、Ｒ1 は水素原子、ハロゲン原子、シアノ基、
ニトロ基、アルキル基、アルコキシ基またはアリ−ルオ
キシ基を示す。なお、Ａｒ1 とＡｒ4 及びＡｒ2 とＡｒ
3 は各々同一でも異なってもよい。1. An electrophotographic photosensitive member having a photosensitive layer on a conductive support, wherein the photosensitive layer contains a compound represented by the following general formula (1). General formula (1) In the formula, Ar 1 and Ar 4 each represent an aryl which may have a substituent.
, Ar 2 and Ar 3 are a fluorenyl group which may have a substituent, R 1 is a hydrogen atom, a halogen atom, a cyano group,
It represents a nitro group, an alkyl group, an alkoxy group or an aryloxy group. Note that Ar 1 and Ar 4 and Ar 2 and Ar 4
3 may be the same or different.
電手段、現像手段、クリ−ニング手段からなる群より選
ばれる少なくとも一つの手段を一体に支持し、電子写真
装置本体に着脱自在であることを特徴とするプロセスカ
−トリッジ。2. The electrophotographic photosensitive member according to claim 1, and at least one unit selected from the group consisting of a charging unit, a developing unit, and a cleaning unit are integrally supported, and are detachably attached to an electrophotographic apparatus main body. A process cartridge characterized by the following.
段、像露光手段、現像手段及び転写手段を有することを
特徴とする電子写真装置。3. An electrophotographic apparatus comprising the electrophotographic photosensitive member according to claim 1, a charging unit, an image exposing unit, a developing unit and a transfer unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10233500A JP2000056489A (en) | 1998-08-06 | 1998-08-06 | Electrophotographic photoreceptor, process cartridge having that electrophotographic photoreceptor, and electrophotographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10233500A JP2000056489A (en) | 1998-08-06 | 1998-08-06 | Electrophotographic photoreceptor, process cartridge having that electrophotographic photoreceptor, and electrophotographic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000056489A true JP2000056489A (en) | 2000-02-25 |
Family
ID=16956006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10233500A Withdrawn JP2000056489A (en) | 1998-08-06 | 1998-08-06 | Electrophotographic photoreceptor, process cartridge having that electrophotographic photoreceptor, and electrophotographic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000056489A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007033868A (en) * | 2005-07-27 | 2007-02-08 | Ricoh Co Ltd | Image forming apparatus and image forming method |
-
1998
- 1998-08-06 JP JP10233500A patent/JP2000056489A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007033868A (en) * | 2005-07-27 | 2007-02-08 | Ricoh Co Ltd | Image forming apparatus and image forming method |
| JP4567545B2 (en) * | 2005-07-27 | 2010-10-20 | 株式会社リコー | Image forming apparatus and image forming method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0567396B1 (en) | Electrophotographic photosensitive member, electrophotographic apparatus using same and device unit using same | |
| JP2933149B2 (en) | Electrophotographic photosensitive member, electrophotographic apparatus having the same, and facsimile | |
| JP2000105475A (en) | Electrophotographic photoreceptor, process cartridge and electrophotographic device | |
| JP2000056490A (en) | Electrophotographic photoreceptor, process cartridge and electrophotographic device | |
| JP2798201B2 (en) | Electrophotographic photosensitive member, electrophotographic apparatus having the same, and facsimile | |
| JPH10104861A (en) | Electrophotographic photoreceptor, process cartridge with the same and electrophotographic device | |
| JP2000221713A (en) | Electrophotographic photoreceptor and process cartridge and electrophotographic apparatus each having same | |
| JP3027481B2 (en) | Electrophotographic photoreceptor and electrophotographic apparatus provided with the electrophotographic photoreceptor | |
| JP3689546B2 (en) | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | |
| JP3155856B2 (en) | Electrophotographic photoreceptor, electrophotographic apparatus and apparatus unit having the electrophotographic photoreceptor | |
| JPH10111577A (en) | Electrophotographic photoreceptor, process cartridge with same and electrophotographic device | |
| JP3248627B2 (en) | Electrophotographic photoreceptor, electrophotographic apparatus and apparatus unit having the same | |
| JP3197117B2 (en) | Electrophotographic photoreceptor, apparatus unit having the same, and electrophotographic apparatus | |
| JP3595637B2 (en) | Electrophotographic photoreceptor, process cartridge and electrophotographic apparatus | |
| JP2981348B2 (en) | Electrophotographic photoreceptor, electrophotographic apparatus provided with the electrophotographic photoreceptor, and facsimile | |
| JPH1048856A (en) | Electrophotographic photoreceptor, process cartridge with same and electrophotographic device | |
| JP3228657B2 (en) | Electrophotographic photoreceptor, process cartridge having the electrophotographic photoreceptor, and electrophotographic apparatus | |
| JP2000056489A (en) | Electrophotographic photoreceptor, process cartridge having that electrophotographic photoreceptor, and electrophotographic device | |
| JP2000056491A (en) | Electrophotographic photoreceptor, process cartridge having that electrophotographic photoreceptor, and electrophotographic device | |
| JP3789046B2 (en) | Electrophotographic photosensitive member, process cartridge having the electrophotographic photosensitive member, and electrophotographic apparatus | |
| JPH09134020A (en) | Electrophotographic photoreceptor, electrophotographic device equipped with that photoreceptor and process cartridge | |
| JP2879372B2 (en) | Electrophotographic photoreceptor, electrophotographic apparatus provided with the electrophotographic photoreceptor, and facsimile | |
| JP3295305B2 (en) | Electrophotographic photoreceptor, process cartridge having the electrophotographic photoreceptor, and electrophotographic apparatus | |
| JP2798200B2 (en) | Electrophotographic photosensitive member, electrophotographic apparatus having the same, and facsimile | |
| JP2000075517A (en) | Electrophotographic photoreceptor, and process cartridge and electrophotographic device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20051101 |