JPH05188630A - Electrophotographic copying method - Google Patents
Electrophotographic copying methodInfo
- Publication number
- JPH05188630A JPH05188630A JP4023444A JP2344492A JPH05188630A JP H05188630 A JPH05188630 A JP H05188630A JP 4023444 A JP4023444 A JP 4023444A JP 2344492 A JP2344492 A JP 2344492A JP H05188630 A JPH05188630 A JP H05188630A
- Authority
- JP
- Japan
- Prior art keywords
- substance
- protective layer
- electrophotographic
- developer
- copying method
- 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.)
- Pending
Links
Landscapes
- Photoreceptors In Electrophotography (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Description
【産業上の利用分野】本発明は電子写真複写方法に関
し、詳しくは表面保護層を有する電子写真感光体の耐環
境性に優れる電子写真複写方法。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic copying method, and more particularly to an electrophotographic copying method having an environment-resistant electrophotographic photosensitive member having a surface protective layer.
【０００２】[0002]
【従来の技術】電子写真感光体はその像形成プロセスに
おいて、帯電、露光、現像、転写、クリ−ニング、除電
の繰り返し過程を経る。帯電、露光により形成された静
電潜像はトナ−といわれる微粒子状の現像剤によりトナ
−画像となる。さらにこのトナ−画像は転写プロセスに
おいて紙などの転写材に転写されるが、１００％のトナ
−が転写されるわけではなく、一部が感光体上に残留す
る。この残留トナ−を除去しないと、繰り返しプロセス
において、汚れなどのない高品質な画像を得ることがで
きない。そのために残留トナ−のクリ−ニングプロセス
が必要となる。クリ−ニングプロセスとしてはファ−ブ
ラシ、磁気ブラシまたはブレ−ドなどを用いたものが代
表的であるが、クリ−ニングの精度、装置構成などの点
から一般にはブレ−ドクリ−ニングが選択される。しか
し、ブレ−ドを常時圧接している関係から電子写真感光
体表面が削られる。電子写真感光体は一般に表面硬度の
低さ、総膜厚が薄いなどの関係から削れによる耐久性は
他の感光体と比較して低い。そのため、感光層表面に表
面硬度の高い表面保護層を設けることが考えられる。し
かし、表面硬度が高くなると表面に付着したイオン生成
物はブレ−ドでかきとれないため、表面保護層表面の滑
り性が低下し、特に多湿環境下にて、クリ−ニングブレ
−ドのめくれまたはクリ−ニング不良を生じることが判
明した。2. Description of the Related Art An electrophotographic photosensitive member undergoes repeating steps of charging, exposing, developing, transferring, cleaning and discharging in the image forming process. The electrostatic latent image formed by charging and exposure becomes a toner image by a fine particle developer called toner. Further, this toner image is transferred to a transfer material such as paper in the transfer process, but not 100% of the toner is transferred, and a part of the toner remains on the photoconductor. If this residual toner is not removed, it is impossible to obtain a high-quality image free from dirt in the repeating process. Therefore, a cleaning process for residual toner is required. As a cleaning process, a method using a far brush, a magnetic brush, or a blade is typical, but in general, blade cleaning is selected from the viewpoints of cleaning accuracy, device configuration, and the like. It However, the surface of the electrophotographic photosensitive member is abraded due to the constant pressure contact of the blade. The electrophotographic photosensitive member generally has low durability due to abrasion due to its low surface hardness and thin total film thickness as compared with other photosensitive members. Therefore, it is conceivable to provide a surface protective layer having high surface hardness on the surface of the photosensitive layer. However, when the surface hardness is high, the ion product attached to the surface cannot be scraped off by the blade, so that the slipperiness of the surface of the surface protective layer is reduced, and especially in a humid environment, the cleaning blade may be turned up or turned up. It was found that cleaning failure occurred.
【０００３】そこで、その対策に現像剤に酸化セリウム
などの研磨剤を入れる、クリ−ニング機構に磁気ブラ
シ、スポンジカ−ラ−などを付加させ、上記付着物を除
去することが考えられる。Therefore, as a countermeasure, it is considered that an abrasive such as cerium oxide is added to the developer, and a magnetic brush, a sponge color, etc. are added to the cleaning mechanism to remove the deposits.
【０００４】しかし、現像剤に研磨剤を入れた場合、現
像剤自体の耐環境性が劣化する、また、結局感光体表面
を削り取ることになるため、保護層を設けることによる
耐久性の上昇が不十分となる。また、プロセス的にクリ
−ニング機構に補助を設ける場合は装置が大型化する、
コスト的に問題がある、磁気ブラシなどではやはり表面
を削り取るため、耐久性が不十分となるなど、いずれに
しても表面を削ることにより付着物を除去することにな
るため、表面保護層を設けて耐久性を向上させるという
効果を十分に期待することができない。However, when an abrasive is added to the developer, the environment resistance of the developer itself is deteriorated, and the surface of the photoconductor is eventually scraped off, so that the durability is increased by providing the protective layer. Will be insufficient. In addition, when the cleaning mechanism is provided with an auxiliary in terms of process, the device becomes large in size,
There is a problem in terms of cost, and since the surface is removed by a magnetic brush, the durability is insufficient.In any case, the surface protection layer is provided because the adhered matter is removed by scraping the surface. Therefore, the effect of improving durability cannot be expected sufficiently.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、電子
写真感光体自体の耐久性を向上させ、さらに、感光体表
面の滑り性の維持、多湿環境下でのブレ−ドのめくれの
解消などを可能にする電子写真複写方法を提供すること
である。SUMMARY OF THE INVENTION The object of the present invention is to improve the durability of the electrophotographic photosensitive member itself, to maintain the slipperiness of the surface of the photosensitive member, and to eliminate the curling of blades in a humid environment. It is to provide an electrophotographic copying method that enables the above.
【０００６】[0006]
【課題を解決するための手段】本発明は少なくとも感光
層と表面保護層からなる電子写真感光体とその表面に生
成する潜像を顕像化する現像剤を用いる電子写真複写方
法において、前記電子写真感光体の表面保護層は少なく
ともフッ素原子含有樹脂微粒子、電荷輸送材およびこれ
らを結着する樹脂からなり、かつ、前記の現像剤は前記
電子写真感光体の表面保護層表面に付着する吸着物質を
除去する物質を外添することを特徴とする電子写真複写
方法から構成される。The present invention relates to an electrophotographic copying method using an electrophotographic photosensitive member comprising at least a photosensitive layer and a surface protective layer and a developer for visualizing a latent image formed on the surface of the electrophotographic photosensitive member. The surface protective layer of the photographic photosensitive member is composed of at least fluorine atom-containing resin fine particles, a charge transport material and a resin that binds these, and the developer is an adsorbing substance attached to the surface of the surface protective layer of the electrophotographic photosensitive member. It is constituted by an electrophotographic copying method characterized by externally adding a substance for removing.
【０００７】本発明においては、電子写真感光体の感光
層表面に表面保護層を設けることにより感光体自体の耐
久性を向上しつつ、現像剤に感光層表面に付着したイオ
ン性吸着物質を除去する物質を外添することにより表面
層を切削する手段を用いないことから、表面保護層を設
けたことの意義を十分に生かすことを可能とし、さらに
感光体表面の滑り性を初期と同等に保持することを可能
とし、多湿環境下でのブレ−ドめくれを解消できるなど
の利点がある。In the present invention, by providing a surface protective layer on the surface of the photosensitive layer of the electrophotographic photosensitive member, the durability of the photosensitive member itself is improved, and at the same time, the developer removes the ionic adsorbing substance adhering to the surface of the photosensitive layer. Since a means for cutting the surface layer by externally adding a substance to be used is not used, it is possible to make full use of the significance of providing the surface protective layer, and further, the slipperiness of the surface of the photoconductor is made equal to the initial value. It has an advantage that it can be held and the blade turn-up in a humid environment can be eliminated.
【０００８】表面保護層は少なくとも電荷輸送材と摩擦
抵抗を低下させるためのフッ素原子含有樹脂微粒子およ
びこれらを結着する樹脂によって形成されている。The surface protective layer is formed of at least a fluorine atom-containing resin fine particle for reducing frictional resistance with the charge transport material and a resin binding these.
【０００９】表面保護層における電荷輸送材の例として
は、ピレン化合物、アルキルカルバゾ−ル化合物、ヒド
ラゾン化合物、Ｎ，Ｎ−ジアルキルアニリン化合物、ジ
フェニルアミン化合物、トリフェニルアミン化合物、ト
リフェニルメタン化合物、ピラゾリン化合物、スチリル
化合物、スチルベン化合物、ポリニトロ化合物、ポリシ
アノ化合物、さらに、これらの化合物をポリマ−上に固
定したペンダントポリマ−などが挙げられる。Examples of the charge transport material in the surface protective layer are pyrene compounds, alkylcarbazol compounds, hydrazone compounds, N, N-dialkylaniline compounds, diphenylamine compounds, triphenylamine compounds, triphenylmethane compounds, pyrazolines. Examples thereof include compounds, styryl compounds, stilbene compounds, polynitro compounds, polycyano compounds, and pendant polymers having these compounds fixed on a polymer.
【００１０】フッ素原子含有樹脂微粒子はポリテトラフ
ルオロエチレン、ポリクロロトリフルオロエチレン、ポ
リフッ化ビニリデン、ポリジクロロジフルオロエチレ
ン、テトラフルオロエチレン−パ−フルオロアルキルビ
ニルエ−テル共重合体、テトラフルオロエチレン−ヘキ
サフルオロプロピレン共重合体、テトラフルオロエチレ
ン−エチレン共重合体、テトラフルオロエチレン−ヘキ
サフルオロプロピレン−パ−フルオロアルキルビニルエ
−テル共重合体の１種または２種以上を選択構成され
る。分子量は３千〜５００万の範囲、粒径は０．０１〜
１０μｍ、好ましくは０．０５〜２．０μｍの範囲で用
いられる。市販のフッ素原子含有樹脂微粒子をそのまま
使用してもよい。The fluorine atom-containing resin fine particles are polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, polydichlorodifluoroethylene, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetrafluoroethylene-hexa. One type or two or more types selected from a fluoropropylene copolymer, a tetrafluoroethylene-ethylene copolymer, and a tetrafluoroethylene-hexafluoropropylene-perfluoroalkylvinylether copolymer are selected and configured. The molecular weight ranges from 3,000 to 5,000,000, and the particle size ranges from 0.01 to
It is used in the range of 10 μm, preferably 0.05 to 2.0 μm. The commercially available fluorine atom-containing resin fine particles may be used as they are.
【００１１】しかし、フッ原子含有樹脂微粒子は、結晶
性が高く不透明であり、かつ結着樹脂の屈折率（１．４
〜１．６）よりも小さい屈折率（１．３４〜１．３６）
を有し、従って、フッ原子含有樹脂微粒子を表面保護層
中に多量に含有させると露光の入射光が著しい散乱現象
を起こし、感光体の感度低下、潜像の乱れ、解像力の低
下などを生じ、画像劣化の原因となる。そこで感光体表
面の摩擦抵抗の低下と画像の良好性を両立させるために
はフッ原子含有樹脂微粒子は限定される。その量は１〜
５０ｗｔ％、好ましくは５〜３０ｗｔ％である。However, the fluorine atom-containing resin fine particles have high crystallinity and are opaque, and the refractive index of the binder resin (1.4
Refractive index smaller than (~ 1.6) (1.34 to 1.36)
Therefore, when a large amount of fluorine atom-containing resin fine particles are contained in the surface protective layer, the incident light of exposure causes a remarkable scattering phenomenon, resulting in a decrease in the sensitivity of the photoconductor, a disturbance in the latent image, and a decrease in the resolution. It causes image deterioration. Therefore, the fluorine atom-containing resin fine particles are limited in order to achieve both the reduction of the frictional resistance on the surface of the photoconductor and the goodness of the image. The amount is 1
50 wt%, preferably 5 to 30 wt%.
【００１２】フッ原子含有樹脂微粒子、電荷輸送材など
を結着する樹脂としてはポリエステル、ポリウレタン、
ポリアリレ−ト、ポリエチレン、ポリスチレン、ポリブ
タジエン、ポリカ−ボネ−ト、ポリアミド、ポリプロピ
レン、ポリイミド、フェノ−ル樹脂、アクリル樹脂、シ
リコ−ン樹脂、エポキシ樹脂、ユリア樹脂、アリル樹
脂、アルキッド樹脂、ポリアミド−イミド、ナイロン、
ポリサルホン、ポリアリルエ−テル、ポリアセタ−ル、
ブチラ−ル樹脂などが挙げられる。As the resin for binding the fluorine atom-containing resin fine particles and the charge transport material, polyester, polyurethane,
Polyarylate, polyethylene, polystyrene, polybutadiene, polycarbonate, polyamide, polypropylene, polyimide, phenol resin, acrylic resin, silicone resin, epoxy resin, urea resin, allyl resin, alkyd resin, polyamide-imide ,Nylon,
Polysulfone, polyallyl ether, polyacetal,
Butyral resin and the like can be mentioned.
【００１３】前記電荷輸送材、フッ素原子含有樹脂微粒
子、結着樹脂などを分散させる方法としてはボ−ルミ
ル、超音波、ペイントシェ−カ−、レッドデビル、サン
ドミルなどの分散方法が挙げられ、また、表面保護層の
形成は蒸着、塗布などの方法が用いられ、塗布方法とし
てはバ−コ−タ−、ナイフコ−タ−、浸漬塗布、スプレ
−塗布、ビ−ム塗布、静電塗布、ロ−ルコ−タ−、アト
ライタ−、粉体塗布などの方法が挙げられる。表面保護
層の膜厚は０．０５〜８μｍ、好ましくは０．５〜６μ
ｍである。Examples of the method for dispersing the charge transport material, the fluorine atom-containing resin fine particles, the binder resin, and the like include a ball mill, an ultrasonic wave, a paint shaker, a red devil, and a sand mill. A method such as vapor deposition or coating is used for the formation of the surface protective layer. The coating method includes bar coating, knife coating, dip coating, spray coating, beam coating, electrostatic coating, and roll coating. -A method such as a coater, an attritor, or powder coating may be used. The thickness of the surface protective layer is 0.05 to 8 μm, preferably 0.5 to 6 μm
m.
【００１４】次に現像剤に外添する物質であるが、現象
として、多湿環境下という水分の存在下でイオン生成物
が表面保護層の表面に吸着するということから、その特
性として、水に容易に溶解し、かつ、分解し、そのイオ
ン化した外添物質が吸着した生成物と反応し、還元させ
ることが必要となる。かかる条件を満たす物質として
は、ＢａＣＯ３、ＡｌＩ３、ＡｌＳ３、ＣｅＳＯ４、Ｃ
ｒＯ２Ｃｌ２、ＰｂＣｒ２Ｏ７、Ｍｎ２（ＳＯ４）３、
Ｔｌ２ＳＯ４、ＢｉＯＣｌなどが挙げられ、これらを２
種以上混合してもよい。また、これらの無機物質に限ら
ず、前記特性を有すれば有機物質などでもよい。これら
外添する物質の添加量は現像剤の特性を悪化させるもの
であってはならず、その量としては添加する物質によっ
て異なるが１０ ．３〜１０ｗｔ％であることが望まし
い。また現像剤は一成分、二成分いずれでもよい。Next, as a substance externally added to the developer, a phenomenon
As an ion product in the presence of moisture, which is a humid environment
Is adsorbed on the surface of the surface protective layer,
As a property, it dissolves easily in water and decomposes
The externalized substance reacts with the adsorbed product to reduce it.
Will be required. As a substance that meets these conditions
Is BaCOThree, AlIThree, AlSThree, CeSOFour, C
rOTwoClTwo, PbCrTwoO7, MnTwo(SOFour)Three,
TlTwoSOFour, BiOCl, etc.
You may mix 1 or more types. Also limited to these inorganic substances
Alternatively, an organic substance or the like may be used as long as it has the above characteristics. these
The amount of externally added substances deteriorates the properties of the developer.
, Depending on the substance added.
Different but 10 ． 3-10 wt% is desirable
Yes. The developer may be either one component or two components.
【００１５】本発明の電子写真複写方法において用いる
電子写真感光体の感光層はＳｅ、Ｓｅ３Ａｓ２などのＳ
ｅ系感光体、Ａ−Ｓｉ感光体などの無機感光体および有
機感光体またはそれらを混合した感光体が望まれる。The photosensitive layer of the electrophotographic photosensitive member used in the electrophotographic copying method of the present invention is S, such as Se or Se 3 As 2.
An inorganic photoconductor such as an e-type photoconductor, an A-Si photoconductor, an organic photoconductor, or a photoconductor obtained by mixing them is desired.
【００１６】[0016]
実施例１ ナイロン（商品名Ｍ−４０００、東レ（株）製）１０部
（重量部、以下同様）、メタノ−ル１００部およびイソ
プロパノ−ル９０部を混合、溶解した後、外径８０ｍ
ｍ、肉厚１．５ｍｍ、長さ３６３ｍｍのアルミニウムシ
リンダ−上に浸漬塗布し、９０℃で２０分間乾燥して、
２０μｍの下引き層を形成した。Example 1 Nylon (trade name M-4000, manufactured by Toray Industries, Inc.) 10 parts (parts by weight; the same applies hereinafter), 100 parts of methanol and 90 parts of isopropanol were mixed and dissolved, and then the outer diameter was 80 m.
m, thickness 1.5 mm, length 363 mm on an aluminum cylinder by dip coating, dried at 90 ° C. for 20 minutes,
An undercoat layer of 20 μm was formed.
【００１７】次に、下記構造式のトリスアゾ顔料１０
部、Next, a trisazo pigment 10 having the following structural formula
Department,
【化１】 ポリカ−ボネ−ト（ビスフェノ−ルＡ型、分子量２万）
５部およびシクロヘキサノン６００部をサンドミルで分
散し、電荷発生層用塗料を調製した。この塗料を下引き
層上に浸漬塗布し、１２０℃で２０分間乾燥して０．１
５μｍの電荷発生層を形成した。[Chemical 1] Polycarbonate (Bisphenol A type, molecular weight 20,000)
5 parts and 600 parts of cyclohexanone were dispersed by a sand mill to prepare a charge generation layer coating material. This paint is applied by dip coating on the undercoat layer, dried at 120 ° C. for 20 minutes,
A 5 μm charge generation layer was formed.
【００１８】次に、下記構造式のスチリル化合物２０
部、Next, a styryl compound 20 having the following structural formula
Department,
【化２】 ポリカ−ボネ−ト（ビスフェノ−ルＡ型、分子量２万）
２０部およびクロロベンゼン８００部をボ−ルミルで分
散し、電荷輸送層用塗料を調製した。この塗料を電荷発
生層上に浸漬塗布し、１３０℃で９０分間乾燥して１８
μｍの電荷輸送層を形成した。[Chemical 2] Polycarbonate (Bisphenol A type, molecular weight 20,000)
20 parts and 800 parts of chlorobenzene were dispersed by a ball mill to prepare a charge transport layer coating material. This paint is applied on the charge generation layer by dip coating and dried at 130 ° C. for 90 minutes to obtain 18
A μm charge transport layer was formed.
【００１９】次に、ポリテトラフルオロエチレン微粒子
（商品名ルブロンＬ−５、ダイキン工業（株）製）１０
部、ポリカ−ボネ−ト（ビスフェノ−ルＺ型、分子量２
万））１０部、下記構造式のトリアリ−ルアミン化合物
５部、Next, polytetrafluoroethylene fine particles (trade name: Lubron L-5, manufactured by Daikin Industries, Ltd.) 10
Part, polycarbonate (bisphenol Z type, molecular weight 2
10,000)) 10 parts, 5 parts of a triarylamine compound having the following structural formula,
【化３】 ジクロロメタン４５０部をサンドミルで分散し、保護層
用塗料を調製した。この塗料を電荷輸送層上に浸漬塗布
し、１２０℃で３０分間乾燥して２．０μｍの保護層を
形成し、図１に示すような電子写真感光体を作成した。[Chemical 3] 450 parts of dichloromethane was dispersed by a sand mill to prepare a protective layer coating material. This coating material was applied onto the charge transport layer by dip coating, and dried at 120 ° C. for 30 minutes to form a protective layer having a thickness of 2.0 μm, thereby preparing an electrophotographic photoreceptor as shown in FIG.
【００２０】上記の電子写真感光体を図２に示すような
電子写真装置に装着した。該装置について簡単に説明す
ると、図示されない回転駆動装置により感光体５が矢印
方向に回転する。まず、帯電チャ−ジャ−６ニヨリ感光
体ひょうめんが均一に帯電される。次ぎに、露光７によ
り感光体に静電潜像が形成される次いで現像器８内の現
像剤により潜像が顕像化される。顕像化されたトナ−画
像は図示されない給紙部より給紙された用紙に転写チャ
−ジャ−９により感光体表面から転写される。そして、
はくりチャ−ジャ−１０により感光体と紙がはくりされ
る。用紙は図示されない定着装置を通過し画像が定着さ
れる。一方、転写されなかったトナ−はクリ−ニング装
置１１によりクリ−ニング装置ないに取り込まれる。そ
して感光体表面に残存している電荷は除電により除電さ
れる。これが該装置のプロセスである。本実施例１では
現像器８内の現像剤に、外添剤をＣｅＳＯ４とし、添加
量をふり、多湿環境下（３５℃、８０％ＲＨ）で耐久を
行った。結果を示す。The above electrophotographic photosensitive member was mounted on an electrophotographic apparatus as shown in FIG. To briefly describe the device, the photoconductor 5 is rotated in the arrow direction by a rotation driving device (not shown). First, the charging charger 6 is loaded uniformly on the surface of the photosensitive member. Next, an electrostatic latent image is formed on the photoreceptor by the exposure 7, and then the latent image is made visible by the developer in the developing device 8. The visualized toner image is transferred from the surface of the photoconductor to the paper fed from a paper feeding unit (not shown) by the transfer charger 9. And
The peeling charger 10 peels off the photoconductor and the paper. The sheet passes through a fixing device (not shown) to fix the image. On the other hand, the toner that has not been transferred is taken into the cleaning device by the cleaning device 11. Then, the electric charge remaining on the surface of the photoconductor is removed by the charge removal. This is the process of the device. In Example 1, the developer in the developing device 8 was made to have CeSO 4 as an external additive, the addition amount was varied, and durability was performed in a humid environment (35 ° C., 80% RH). The results are shown.
【表１】 添加量０．０２、０．０５ｗｔ％ではブレ−ドめくれは
生じなかったが、画像にクリ−ニング不良による黒すじ
が発生した。外添剤の添加量を増加することにより、ブ
レ−ドめくれ、クリ−ニング不良が改善される。ただ
し、添加量が多いと白地カブリが増加し、添加量０．１
ｗｔ％のカブリが０．５％であるのに比べ添加量１．０
および２．０ｗｔ％はそれぞれ１．２、２．２％であっ
た。[Table 1] When the addition amounts were 0.02 and 0.05 wt%, no blade turning occurred, but black streaks were generated in the image due to poor cleaning. By increasing the amount of the external additive added, blade turning and cleaning failure are improved. However, if the addition amount is large, the fog on a white background increases, and the addition amount is 0.1
Addition amount is 1.0 compared to 0.5% for wt% fog
And 2.0 wt% were 1.2 and 2.2%, respectively.
【００２１】実施例２ 外添剤をＣｒＯ２Ｃｌ２とし、添加量をふり、多湿環境
下で耐久を行った。結果を示す。Example 2 CrO 2 Cl 2 was used as the external additive, the amount added was varied, and durability was performed in a humid environment. The results are shown.
【表２】 [Table 2]
【００２２】実施例３ 外添剤をＴｌ２ＳＯ４とし、添加量をふり、多湿環境下
で耐久を行った。Example 3 Tl 2 SO 4 was used as the external additive, the amount added was varied, and durability was performed in a humid environment.
【表３】 [Table 3]
【００２３】[0023]
【発明の効果】本発明の電子写真複写方法は、フッ素原
子含有樹脂微粒子を含有する表面保護層を感光層上に設
けたことにより耐久性を向上させた電子写真感光体を用
いたこと、現像剤にイオン生成物を化学的の除去する物
質を外添することにより、多湿環境下でのブレ−ドめく
れ、これに起因するクリ−ニング不良を防止するという
顕著な効果を奏する。According to the electrophotographic copying method of the present invention, an electrophotographic photoreceptor having improved durability by providing a surface protective layer containing fluorine atom-containing resin fine particles on the photosensitive layer is used. By externally adding a substance that chemically removes an ion product to the agent, a remarkable effect of preventing blade blister in a humid environment and cleaning failure resulting therefrom can be obtained.
【００２４】[0024]
【図１】本発明で用いる電子写真感光体の１例である。FIG. 1 is an example of an electrophotographic photosensitive member used in the present invention.
【図２】本発明を用いる電子写真装置の１例である。FIG. 2 is an example of an electrophotographic apparatus using the present invention.
【符号の説明】 １ 下引き層 ２ 電荷発生層 ３ 電荷輸送層 ４ 表面保護層 ５ 感光体 ６ 帯電チャ−ジャ− ７ 露光 ８ 現像器 ９ 転写チャ−ジャ− １０ 剥離チャ−ジャ− １１ クリ−ニング装置 １２ 除電[Explanation of Codes] 1 Undercoat layer 2 Charge generation layer 3 Charge transport layer 4 Surface protective layer 5 Photoreceptor 6 Charging charger 7 Exposure 8 Developer 9 Transfer charger 10 Peeling charger 11 Clear Device 12 static elimination
Claims (4)
電子写真感光体とその表面に生成する潜像を顕像化する
現像剤を用いる電子写真複写方法において、前記電子写
真感光体の表面保護層は少なくともフッ素原子含有樹脂
微粒子、電荷輸送材およびこれらを結着する樹脂からな
り、かつ、前記の現像剤は前記電子写真感光体の表面保
護層表面に付着する吸着物質を除去する物質を外添する
ことを特徴とする電子写真複写方法。1. An electrophotographic copying method using an electrophotographic photosensitive member comprising at least a photosensitive layer and a surface protective layer and a developer for visualizing a latent image formed on the surface thereof, wherein the surface protective layer of the electrophotographic photosensitive member is used. Is at least a fluorine atom-containing resin fine particle, a charge transport material, and a resin that binds these, and the developer externally adds a substance that removes an adsorbed substance adhering to the surface of the surface protective layer of the electrophotographic photoreceptor. An electrophotographic copying method characterized by:
は、アルカリ土類金属、希土類金属の各々の炭酸塩およ
び硫酸塩の無機物質である請求項１記載の電子写真複写
方法。2. The electrophotographic copying method according to claim 1, wherein the substance externally added to the developer according to claim 1 is an inorganic substance of carbonate or sulfate of alkaline earth metal or rare earth metal.
は、陽イオン交換性物質および陰イオン交換性物質のい
ずれか一方を少なくとも有する有機物質である請求項１
記載の電子写真複写方法。3. The substance externally added to the developer according to claim 1, is an organic substance having at least one of a cation exchange substance and an anion exchange substance.
The described electrophotographic copying method.
は、請求項２記載の無機物質および請求項３記載の有機
物質からなる請求項１記載の電子写真複写方法。 【０００１】4. The electrophotographic copying method according to claim 1, wherein the substance externally added to the developer according to claim 1 comprises the inorganic substance according to claim 2 and the organic substance according to claim 3. [0001]
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4023444A JPH05188630A (en) | 1992-01-14 | 1992-01-14 | Electrophotographic copying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4023444A JPH05188630A (en) | 1992-01-14 | 1992-01-14 | Electrophotographic copying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05188630A true JPH05188630A (en) | 1993-07-30 |
Family
ID=12110677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4023444A Pending JPH05188630A (en) | 1992-01-14 | 1992-01-14 | Electrophotographic copying method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05188630A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6730448B2 (en) | 2001-08-28 | 2004-05-04 | Fuji Xerox Co., Ltd. | Image forming method, process cartridge and image forming apparatus |
| US8126369B2 (en) | 2008-09-26 | 2012-02-28 | Fuji Xerox Co., Ltd. | Image forming apparatus and process cartridge |
-
1992
- 1992-01-14 JP JP4023444A patent/JPH05188630A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6730448B2 (en) | 2001-08-28 | 2004-05-04 | Fuji Xerox Co., Ltd. | Image forming method, process cartridge and image forming apparatus |
| US8126369B2 (en) | 2008-09-26 | 2012-02-28 | Fuji Xerox Co., Ltd. | Image forming apparatus and process cartridge |
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