JPH0643730A - Electrophotographic device - Google Patents
Electrophotographic deviceInfo
- Publication number
- JPH0643730A JPH0643730A JP10319592A JP10319592A JPH0643730A JP H0643730 A JPH0643730 A JP H0643730A JP 10319592 A JP10319592 A JP 10319592A JP 10319592 A JP10319592 A JP 10319592A JP H0643730 A JPH0643730 A JP H0643730A
- Authority
- JP
- Japan
- Prior art keywords
- charging wire
- film
- sicl
- electrostatic charging
- charging
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Cleaning In Electrography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は電子写真の帯電器に関
し、より詳しくは帯電ワイヤーの表面改質に関する。特
に帯電ワイヤーに離型性を付与してトナーの付着を防ぐ
ことに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic charger, and more particularly to surface modification of a charging wire. In particular, it relates to imparting releasability to the charging wire to prevent toner adhesion.
【0002】[0002]
【従来の技術】従来、電子写真装置では、一次帯電、画
像露光による静電潜像の形成、静電像とは逆の極性に帯
電したトナーによる現像、普通紙へのトナー像の転写、
定着、クリーニング装置によるドラム上の残存トナーの
除去、強露光によるドラム上の電荷の除去というプロセ
ス繰り返し行われる。2. Description of the Related Art Conventionally, in an electrophotographic apparatus, primary charging, formation of an electrostatic latent image by image exposure, development with toner charged to the opposite polarity to the electrostatic image, transfer of a toner image to plain paper,
The process of fixing, removing the residual toner on the drum by the cleaning device, and removing the charge on the drum by the strong exposure is repeated.
【0003】帯電プロセスにおいては、帯電ワイヤーに
よりコロナ放電で均一に感光体表面が帯電される。帯電
ワイヤーは通常タングステンワイヤーの表面に金をコー
トしてある。In the charging process, the surface of the photoconductor is uniformly charged by corona discharge by the charging wire. The charging wire is usually a tungsten wire whose surface is coated with gold.
【0004】[0004]
【発明が解決しようとする課題】上記の帯電器を用い
た、電子写真装置で帯電プロセスを繰り返すと、帯電ワ
イヤーにトナーが付着し、繰り返し画像を形成させると
画像乱れや黒い斑点が画像にあらわれ画像品質が低下す
るという課題があった。これは、帯電ワイヤーにトナー
の離型性がないためである。When the charging process is repeated in an electrophotographic apparatus using the above charger, toner adheres to the charging wire, and when images are repeatedly formed, image disturbance and black spots appear in the image. There is a problem that the image quality deteriorates. This is because the charging wire has no releasability of toner.
【0005】本発明は従来の欠点に鑑みなされたもの
で、トナー離型性の優れた帯電ワイヤーを用いた、画像
品質の優れた電子写真装置を提供することを目的として
いる。The present invention has been made in view of the conventional drawbacks, and an object thereof is to provide an electrophotographic apparatus having an excellent image quality, which uses a charging wire having an excellent toner releasability.
【0006】[0006]
【課題を解決するための手段】前記目的を達成するた
め、本発明の電子写真装置は、電子写真感光体を有し、
帯電、像露光、現像、転写、定着及びクリーニングの各
工程を含むプロセスによって複写画像を得るための電子
写真装置において、前記帯電プロセスに用いられ帯電ワ
イヤーの表面にシロキサン結合を介してフッ化アルキル
基を含有する化学吸着膜を設けたことを特徴とする。To achieve the above object, an electrophotographic apparatus of the present invention has an electrophotographic photosensitive member,
In an electrophotographic apparatus for obtaining a copied image by a process including steps of charging, image exposure, development, transfer, fixing and cleaning, an alkyl fluoride group is used on the surface of a charging wire used in the charging process through a siloxane bond. A chemical adsorption film containing is provided.
【0007】前記構成においては、化学吸着膜が単分子
膜またはポリマー膜であることが望ましい。In the above structure, the chemisorption film is preferably a monomolecular film or a polymer film.
【0008】[0008]
【作用】本発明の電子写真装置に用いられる帯電ワイヤ
ーは、その表面にフッ化アルキル基を含有する化学吸着
膜がシロキサン結合を介して化学結合して形成されてい
るので、離型性がすぐれている。すなわち、前記化学吸
着膜の表層にはフッ化アルキル基が存在するから、離型
性に優れたものとなる。また、前記化学吸着膜の基部
は、シロキサン結合を介して化学結合して形成されてい
るので、耐久性に優れた膜とすることができ、帯電を繰
り返しても、前記化学吸着膜は帯電ワイヤー表面から容
易に剥離しない。さらに本発明の化学吸着膜は、ナノメ
ータないしオングストローム単位の極薄い膜であるの
で、帯電ワイヤーの機械的強度などの特性を損ねること
が無い。The charging wire used in the electrophotographic apparatus of the present invention has an excellent releasability because a chemisorption film containing a fluoroalkyl group is chemically bonded to the surface of the charging wire via a siloxane bond. ing. That is, since the fluoroalkyl group is present on the surface layer of the chemical adsorption film, the releasability is excellent. Further, since the base of the chemisorption film is formed by chemically bonding via a siloxane bond, the film can have excellent durability, and the chemisorption film can be charged with a charging wire even if charging is repeated. Does not peel off easily from the surface. Furthermore, since the chemical adsorption film of the present invention is an extremely thin film of nanometer or angstrom unit, it does not impair the mechanical strength and other characteristics of the charging wire.
【0009】また、化学吸着膜が単分子膜であるという
本発明の好ましい構成によれば、均一な厚さの薄い膜と
することができるので、帯電ワイヤーの寸法精度に影響
を与えない。さらに化学吸着ポリマー膜を用いた場合
は、単分子膜よりやや厚さが厚くなるが、緻密膜とする
ことができる。Further, according to the preferable constitution of the present invention in which the chemisorption film is a monomolecular film, a thin film having a uniform thickness can be formed, so that the dimensional accuracy of the charging wire is not affected. Further, when a chemisorption polymer film is used, the film is slightly thicker than the monomolecular film, but a dense film can be obtained.
【0010】[0010]
【実施例】以下実施例を用いてより具体的に本発明を説
明する。本発明の電子写真装置は図1に示すように、帯
電ワイヤー1の表面にシロキサン結合2を介して、フッ
化アルキル基を含有する単分子膜3が形成された帯電ワ
イヤーを用いる。EXAMPLES The present invention will be described more specifically with reference to the following examples. As shown in FIG. 1, the electrophotographic apparatus of the present invention uses a charging wire in which a monomolecular film 3 containing a fluorinated alkyl group is formed on the surface of the charging wire 1 through a siloxane bond 2.
【0011】帯電ワイヤー材料としては、たとえば金
属、とくにタングステンワイヤーに金をコートしたもの
がよく用いられる。本発明の電子写真装置に用いる定着
ローラ表面に設けられる化学吸着膜はフッ化アルキル基
を有するクロロシラン系界面活性剤から構成されてい
る。As the charging wire material, for example, a metal, particularly a tungsten wire coated with gold is often used. The chemical adsorption film provided on the surface of the fixing roller used in the electrophotographic apparatus of the present invention is composed of a chlorosilane-based surfactant having a fluorinated alkyl group.
【0012】本発明の電子写真装置に用いる帯電ワイヤ
ー表面に設けられる化学吸着膜はフッ化アルキル基を有
するクロロシラン系界面活性剤から構成されている。フ
ッ化アルキル基(フルオロアルキル基)を有するクロロ
シラン系界面活性剤としては、例えばCF3 (CF2 )
7 (CH2 )2 SiCl3 ,CF3 CH2 O(CH2 )
15SiCl3 ,CF3 (CH2 )2 Si(CH3 )
2 (CH2 )15SiCl3 ,CF3 (CF2 )3 (CH
2 )2 Si(CH3 )2 (CH2 )9 SiCl3 ,F
(CF2 )8 (CH2 )2 Si(CH3 )2 (CH2 )
9 SiCl3,CF3 COO(CH2 )15SiCl3 ,
CF3 (CF2 )5 (CH2 )2 SiCl3 等のような
トリクロロシラン系界面活性剤を始め、例えばCF
3 (CF2)7 (CH2 )2 SiCln (C
H3 )3-n ,CF3 (CF2 )7 (CH2 )2SiCl
n (C2 H5 )3-n ,CF3 CH2 O(CH2 )15Si
Cln (CH3)3-n ,CF3 CH2 O(CH2 )15S
iCln (C2 H5 )3-n ,CF3 (CH2 )2 Si
(CH3 )2 (CH2 )15SiCln (CH3 )3-n ,
F(CF2)4 (CH2 )2 Si(CH3 )2 (C
H2 )9 SiCln (C2 H5 )3-n ,F(CF2 )8
(CH2 )2 Si(CH3 )2 (CH2 )9 SiCln
(CH3)3-n ,CF3 COO(CH2 )15SiCln
(CH3 )3-n ,CF3 (CF2)5 (CH2 )2 Si
Cln (CH3 )3-n (但し式中のnは何れも1又は
2)等のような低級アルキル基置換のモノクロロシラン
系あるいはジクロロシラン系界面活性剤が挙げられる。
これらの中でもとくにトリクロロシラン系界面活性剤の
親水性基と結合したクロロシリル結合以外のクロロシリ
ル結合が、隣合うクロロシラン基とシロキサン結合で分
子間結合を形成するため、より強固な化学吸着膜とな
る。この理由からトリクロロシラン系化学吸着剤は、好
ましい化学吸着膜の材料である。また、CF3 (C
F2 )n CH2 CH2 SiCl3 (但し式中のnは整数
であり、3〜25程度が最も扱いやすい)が、化学吸着
性と潤滑性等の機能性との釣合が取れているため好まし
い。The chemical adsorption film provided on the surface of the charging wire used in the electrophotographic apparatus of the present invention is composed of a chlorosilane type surfactant having a fluorinated alkyl group. Examples of the chlorosilane-based surfactant having a fluorinated alkyl group (fluoroalkyl group) include CF 3 (CF 2 )
7 (CH 2 ) 2 SiCl 3 , CF 3 CH 2 O (CH 2 )
15 SiCl 3 , CF 3 (CH 2 ) 2 Si (CH 3 )
2 (CH 2 ) 15 SiCl 3 , CF 3 (CF 2 ) 3 (CH
2 ) 2 Si (CH 3 ) 2 (CH 2 ) 9 SiCl 3 , F
(CF 2 ) 8 (CH 2 ) 2 Si (CH 3 ) 2 (CH 2 )
9 SiCl 3 , CF 3 COO (CH 2 ) 15 SiCl 3 ,
Starting with trichlorosilane based surfactants such as CF 3 (CF 2 ) 5 (CH 2 ) 2 SiCl 3 etc., for example CF
3 (CF 2 ) 7 (CH 2 ) 2 SiCl n (C
H 3) 3-n, CF 3 (CF 2) 7 (CH 2) 2 SiCl
n (C 2 H 5) 3 -n, CF 3 CH 2 O (CH 2) 15 Si
Cl n (CH 3 ) 3-n , CF 3 CH 2 O (CH 2 ) 15 S
iCl n (C 2 H 5 ) 3-n , CF 3 (CH 2 ) 2 Si
(CH 3 ) 2 (CH 2 ) 15 SiCl n (CH 3 ) 3-n ,
F (CF 2 ) 4 (CH 2 ) 2 Si (CH 3 ) 2 (C
H 2 ) 9 SiCl n (C 2 H 5 ) 3-n , F (CF 2 ) 8
(CH 2 ) 2 Si (CH 3 ) 2 (CH 2 ) 9 SiCl n
(CH 3 ) 3-n , CF 3 COO (CH 2 ) 15 SiCl n
(CH 3 ) 3-n , CF 3 (CF 2 ) 5 (CH 2 ) 2 Si
Examples include lower alkyl group-substituted monochlorosilane-based or dichlorosilane-based surfactants such as Cl n (CH 3 ) 3-n (where n is 1 or 2 in the formula).
Among these, particularly, chlorosilyl bonds other than the chlorosilyl bond bonded to the hydrophilic group of the trichlorosilane-based surfactant form an intermolecular bond with the adjacent chlorosilane group and the siloxane bond, so that the chemical adsorption film becomes stronger. For this reason, trichlorosilane-based chemisorbents are the preferred chemisorption membrane materials. In addition, CF 3 (C
F 2 ) n CH 2 CH 2 SiCl 3 (where n in the formula is an integer, and about 3 to 25 is the easiest to handle), but the chemical adsorption and the functionality such as lubricity are balanced. Therefore, it is preferable.
【0013】さらにまた、フッ化アルキル鎖部分にビニ
ル基(C=C)やアセチニル基(エチニル基)基を組み
込んでおけば、化学吸着膜形成後5メガラド程度の電子
線照射で架橋できるのでさらに化学吸着膜自体の硬度を
向上させることも可能である。本発明に供されるクロロ
シラン系界面活性剤は、上述に例示したように直鎖状だ
けではなく、分岐した形状でも、又は末端の珪素にフッ
化アルキル基もしくは炭化水素基が置換した形状(例え
ばR、R1 、R2 、R3 をフッ化アルキル基又は炭化水
素基として一般式R2 SiCl2 、R3 SiCl、R1
R2 SiCl2もしくはR1 R2 R3 SiCl等)であ
ってもよいが、吸着密度を高めるためには一般には直鎖
状が好ましい。Furthermore, if a vinyl group (C = C) or an acetinyl group (ethynyl group) is incorporated in the fluorinated alkyl chain portion, it can be crosslinked by electron beam irradiation of about 5 megarads after forming the chemisorption film. It is also possible to improve the hardness of the chemisorption film itself. The chlorosilane-based surfactant to be used in the present invention is not only linear as described above, but also has a branched shape or a shape in which a fluorinated alkyl group or a hydrocarbon group is substituted on the terminal silicon (for example, R, R 1 , R 2 and R 3 are represented by general formulas R 2 SiCl 2 , R 3 SiCl and R 1 with fluoroalkyl groups or hydrocarbon groups.
R 2 SiCl 2 or R 1 R 2 R 3 SiCl, etc.) may be used, but a linear chain is generally preferable in order to increase the adsorption density.
【0014】さらに、内層膜として例えばSiCl4 、
SiHCl3 、SiH2 Cl2 、Cl(SiCl2 O)
n SiCl3 (但し式中nは自然数)、SiClm (C
H3)4-m 、SiClm (C2 H5 )4-m (但し式中m
は1〜3の整数)、HSiClr (CH3 )3-r 、HS
iClr (C2 H5 )3-r (但し式中lは1又は2)等
のようなクロロシリル結合を複数個含む物質を化学吸着
させた後水と反応させると、表面のクロロシリル結合が
親水性のシラノール結合に変わり、分離爪表面が親水性
となる。なお、このクロロシリル基を複数個含む物質の
中でも、テトラクロロシラン(SiCl4 )は反応性が
高く分子量も小さいためより高密度にシラノール結合を
付与できるため好ましい。この内層膜の上に、フッ化ア
ルキル基を含むクロロシラン系界面活性剤を化学吸着で
き、このようにして得た化学吸着膜はより高密度化され
るため、離型性の機能がより高められる。Further, as the inner layer film, for example, SiCl 4 ,
SiHCl 3 , SiH 2 Cl 2 , Cl (SiCl 2 O)
n SiCl 3 (where n is a natural number), SiCl m (C
H 3 ) 4-m , SiCl m (C 2 H 5 ) 4-m (where m is
Is an integer of 1 to 3), HSiCl r (CH 3 ) 3-r , HS
When a substance containing a plurality of chlorosilyl bonds such as iCl r (C 2 H 5 ) 3-r (where l is 1 or 2) is chemically adsorbed and then reacted with water, the chlorosilyl bond on the surface becomes hydrophilic. The surface of the separating nail becomes hydrophilic, replacing the silanol bond. Among these substances containing a plurality of chlorosilyl groups, tetrachlorosilane (SiCl 4 ) is preferable because it has a high reactivity and a small molecular weight and can give a silanol bond at a higher density. A chlorosilane-based surfactant containing a fluorinated alkyl group can be chemically adsorbed onto this inner layer film, and the density of the chemisorption film thus obtained is increased, so that the function of releasability is further enhanced. .
【0015】本発明の電子写真装置に用いられる帯電ワ
イヤーの表面にシロキサン結合を介してフッ化アルキル
基を含有する化学吸着膜を形成する方法は、帯電ワイヤ
ーを非水系の有機溶媒に浸漬して、この表面にクロロシ
ラン系界面活性剤を化学吸着させ、シロキサン結合を介
してフッ化アルキル基を含有する化学吸着膜を形成する
工程を含む。The method of forming a chemisorption film containing a fluorinated alkyl group through a siloxane bond on the surface of the charging wire used in the electrophotographic apparatus of the present invention is as follows: the charging wire is immersed in a non-aqueous organic solvent. And a step of chemically adsorbing a chlorosilane-based surfactant on the surface to form a chemisorption film containing a fluoroalkyl group through a siloxane bond.
【0016】本発明の帯電ワイヤーの表面にシロキサン
結合を介してフッ化アルキル基を含有する化学吸着膜を
形成する方法に用いる非水系溶媒は、クロロシラン系界
面活性剤と反応する活性水素を持たない有機溶媒であれ
ばよい。その例として例えば1,1−ジクロロ,1−フ
ルオロエタン、1,1−ジクロロ,2、2、2−トリフ
ルオロエタン、1,1−ジクロロ,2,2,3,3,3
−ペンタフルオロプロパン、1,3−ジクロロ,1,
1,2,2,3−ヘプタフルオロプロパン、トリフッ化
アルキルアミン、パーフルオロフランおよびそのフッ化
アルキル誘導体等のフッ素系溶媒、例えばヘキサン、オ
クタン、ヘキサデカン、シクロヘキサン等の炭化水素系
溶媒、例えばジブチルエーテル、ジベンジルエーテル等
のエーテル系溶媒、例えば酢酸メチル、酢酸エチル、酢
酸イソプロピル、酢酸アミル等エステル系溶媒の何れか
が好ましい。The non-aqueous solvent used in the method of forming a chemisorption film containing a fluorinated alkyl group via a siloxane bond on the surface of the charging wire of the present invention does not have active hydrogen that reacts with the chlorosilane-based surfactant. Any organic solvent may be used. Examples thereof include 1,1-dichloro, 1-fluoroethane, 1,1-dichloro, 2,2,2-trifluoroethane, 1,1-dichloro, 2,2,3,3,3.
-Pentafluoropropane, 1,3-dichloro, 1,
Fluorine-based solvents such as 1,2,2,3-heptafluoropropane, trifluoroalkylamine, perfluorofuran and its fluorinated alkyl derivatives, for example, hydrocarbon solvents such as hexane, octane, hexadecane and cyclohexane, for example dibutyl ether. , An ether solvent such as dibenzyl ether, or an ester solvent such as methyl acetate, ethyl acetate, isopropyl acetate or amyl acetate is preferable.
【0017】また、本発明の電子写真装置に用いられる
帯電ワイヤー表面に形成される化学吸着膜は、単分子化
学吸着膜一層だけでも充分に機能が発揮される。単分子
化学吸着膜を一層だけ形成するには、クロロシラン系界
面活性剤又はクロロシリル基を複数個含む物質を化学吸
着した後、水分に接触させないで非水系の溶剤で洗浄す
るだけでよく、特別な工程を要しなく簡便に行える。ま
た、化学吸着膜は単分子膜が累積していても良いこと勿
論である。このように、化学吸着膜が単分子膜を形成す
ると、付与された機能性を示す基が配向し、密度も向上
するためより高機能を発揮できる。Further, the chemical adsorption film formed on the surface of the charging wire used in the electrophotographic apparatus of the present invention can sufficiently exhibit its function even if only one monomolecular chemical adsorption film is formed. To form a single molecule chemisorption film, it is sufficient to chemically adsorb a chlorosilane-based surfactant or a substance containing a plurality of chlorosilyl groups, and then wash it with a non-aqueous solvent without contacting with water. It can be done easily without any steps. Further, it goes without saying that the chemical adsorption film may be a monomolecular film accumulated. In this way, when the chemisorption film forms a monomolecular film, the added functional groups are oriented and the density is improved, so that a higher function can be exhibited.
【0018】次に具体的実施例を用いて本発明を説明す
る。 実施例1 径50μm、長さ360mmのタングステンワイヤーを
ヘプタデカフルオロデシルトリクロロシランの10-2mo
l /リットルのシクロヘキサン溶液に室温、窒素雰囲気
下で120分間浸漬し、引き続いて未反応のヘプタデカ
フルオロデシルトリクロロシランをシクロヘキサンで洗
浄して、しかる後純水で洗浄し、フッ化アルキル基を含
むシロキサン結合を介した化学吸着単分子膜を帯電ワイ
ヤー表面に形成した。The present invention will be described with reference to specific examples. Example 1 A tungsten wire having a diameter of 50 μm and a length of 360 mm was replaced with 10 −2 mo of heptadecafluorodecyltrichlorosilane.
Immerse in l / l cyclohexane solution at room temperature under nitrogen atmosphere for 120 minutes, then wash unreacted heptadecafluorodecyltrichlorosilane with cyclohexane and then with pure water to contain fluorinated alkyl group A chemisorption monomolecular film via a siloxane bond was formed on the surface of the charging wire.
【0019】実施例2 実施例1と同じタングステンワイヤーを、まず1wt%
のテトラクロロシラン溶液[溶媒:トリ(nーノナフル
オロブチル)アミン]に窒素雰囲気下で室温で60分間
浸漬し、引き続いて未反応のテトラクロロシランをトリ
(nーノナフルオロブチル)アミンで洗浄して、しかる
後純水で洗浄し、乾燥した試料を用いて、フッ化アルキ
ル基を含むクロロシラン系界面活性剤としてヘプタデカ
フルオロデシルトリクロロシランを用い、濃度10-2mo
l /リットルのトリ(n−ノナフルオロブチル)アミン
溶液に窒素雰囲気下室温で120分間浸漬し、引き続い
て未反応のヘプタデカフルオロデシルトリクロロシラン
をトリ(n−ノナフルオロブチル)アミン溶媒で洗浄し
て、しかる後純水で洗浄し、フッ化アルキル基を含むシ
ロキサン結合を介した化学吸着単分子膜を帯電ワイヤー
に形成した。Example 2 The same tungsten wire as in Example 1 was first added to 1 wt%.
Of the tetrachlorosilane solution [solvent: tri (n-nonafluorobutyl) amine] in a nitrogen atmosphere at room temperature for 60 minutes, and then unreacted tetrachlorosilane is washed with tri (n-nonafluorobutyl) amine. Then, using a sample that was washed with pure water and dried, heptadecafluorodecyltrichlorosilane was used as a chlorosilane-based surfactant containing a fluoroalkyl group, and the concentration was 10 -2 mo.
It was immersed in a l / l tri (n-nonafluorobutyl) amine solution in a nitrogen atmosphere at room temperature for 120 minutes, and then unreacted heptadecafluorodecyltrichlorosilane was washed with a tri (n-nonafluorobutyl) amine solvent. Then, it was washed with pure water, and a chemisorption monomolecular film via a siloxane bond containing a fluoroalkyl group was formed on the charging wire.
【0020】実施例3 実施例1においてヘプタデカフルオロデシルトリクロロ
シランを9−(ヘプタデカフルオロデシルジメチルシリ
ル)ノニルトリクロロシランにかえて同様の実験をし
た。Example 3 A similar experiment was carried out by changing the heptadecafluorodecyltrichlorosilane in Example 1 to 9- (heptadecafluorodecyldimethylsilyl) nonyltrichlorosilane.
【0021】比較例1 実施例1の帯電ワイヤーの表面を処理しないものを比較
例とした。実施例1〜3および比較例1の帯電ワイヤー
を市販の電子写真装置の定着部に装着して、25℃、5
5%RHでコロナ帯電、画像露光、トナーによる現像、
転写、定着およびクリーニングを1万回繰り返し、画像
出しをおこなった。1万回後に得られた画像の品質の評
価結果を表1に示す。Comparative Example 1 The charging wire of Example 1 whose surface was not treated was used as a comparative example. The charging wires of Examples 1 to 3 and Comparative Example 1 were attached to the fixing section of a commercially available electrophotographic apparatus, and the temperature was 25 ° C.
Corona charging at 5% RH, image exposure, development with toner,
Image transfer was performed by repeating transfer, fixing and cleaning 10,000 times. Table 1 shows the evaluation results of the quality of the image obtained after 10,000 times.
【0022】[0022]
【表1】 [Table 1]
【0023】表1から明らかなように、比較例の帯電ワ
イヤーを用いた電子写真装置では、繰り返し連続使用す
ると画像品質が低下したが、本発明の帯電ワイヤーを用
いた電子写真装置では、繰り返し連続使用しても画像品
質の低下がみられなかった。As is clear from Table 1, in the electrophotographic apparatus using the charging wire of the comparative example, the image quality deteriorated when repeatedly used continuously, but in the electrophotographic apparatus using the charging wire of the present invention, the repeated continuous operation was performed. No deterioration in image quality was observed when used.
【0024】[0024]
【発明の効果】以上のように本発明の電子写真装置は、
帯電ワイヤーの表面にシロキサン結合を介してフッ化ア
ルキル基を含有する化学吸着膜が設けられたものを用い
るので、従来のものに比べて、トナー離型性が著しく優
れている。その結果、連続し使用しても高品質の画像が
得られる。このように本発明は工業的価値の大なるもの
である。As described above, the electrophotographic apparatus of the present invention is
Since the one in which the chemical adsorption film containing the fluorinated alkyl group is provided on the surface of the charging wire through the siloxane bond is used, the toner releasability is remarkably excellent as compared with the conventional one. As a result, a high quality image can be obtained even after continuous use. As described above, the present invention has great industrial value.
【図1】本発明の電子写真装置に用いられる帯電ワイヤ
ーの表面を分子レベルまで拡大した断面概念図である。FIG. 1 is a conceptual sectional view in which a surface of a charging wire used in an electrophotographic apparatus of the present invention is enlarged to a molecular level.
1 帯電ワイヤー 2 シロキサン結合 3 化学吸着膜 1 Charging wire 2 Siloxane bond 3 Chemisorption film
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成5年6月29日[Submission date] June 29, 1993
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0011[Correction target item name] 0011
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0011】帯電ワイヤー材料としては、たとえば金
属、とくにタングステンワイヤーに金をコートしたもの
がよく用いられる。本発明の電子写真装置に用いる帯電
ワイヤー表面に設けられる化学吸着膜はフッ化アルキル
基を有するクロロシラン系界面活性剤から構成されてい
る。As the charging wire material, for example, a metal, particularly a tungsten wire coated with gold is often used. Charging used in the electrophotographic apparatus of the present invention
The chemisorption film provided on the wire surface is composed of a chlorosilane-based surfactant having a fluorinated alkyl group.
【手続補正2】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0016[Correction target item name] 0016
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0016】本発明の帯電ワイヤーの表面にシロキサン
結合を介してフッ化アルキル基を含有する化学吸着膜を
形成する方法に用いる非水系溶媒は、クロロシラン系界
面活性剤と反応する活性水素を持たない有機溶媒であれ
ばよい。その例として例えば1,1−ジクロロ,1−フ
ルオロエタン、1,1−ジクロロ,2,2,2−トリフ
ルオロエタン、1,1−ジクロロ,2,2,3,3,3
−ペンタフルオロプロパン、1,3−ジクロロ,1,
1,2,2,3−ヘプタフルオロプロパン、トリフッ化
アルキルアミン、パーフルオロフランおよびそのフッ化
アルキル誘導体等のフッ素系溶媒、例えばヘキサン、オ
クタン、ヘキサデカン、シクロヘキサン等の炭化水素系
溶媒、例えばジブチルエーテル、ジベンジルエーテル等
のエーテル系溶媒、例えば酢酸メチル、酢酸エチル、酢
酸イソプロピル、酢酸アミル等エステル系溶媒の何れか
が好ましい。The non-aqueous solvent used in the method of forming a chemisorption film containing a fluorinated alkyl group via a siloxane bond on the surface of the charging wire of the present invention does not have active hydrogen that reacts with the chlorosilane-based surfactant. Any organic solvent may be used. Examples thereof include 1,1-dichloro, 1-fluoroethane, 1,1-dichloro, 2,2,2 -trifluoroethane, 1,1-dichloro, 2,2,3,3,3.
-Pentafluoropropane, 1,3-dichloro, 1,
Fluorine-based solvents such as 1,2,2,3-heptafluoropropane, trifluoroalkylamine, perfluorofuran and its fluorinated alkyl derivatives, for example, hydrocarbon solvents such as hexane, octane, hexadecane and cyclohexane, for example dibutyl ether. , An ether solvent such as dibenzyl ether, or an ester solvent such as methyl acetate, ethyl acetate, isopropyl acetate or amyl acetate is preferable.
Claims (2)
現像、転写、定着及びクリーニングの各工程を含むプロ
セスによって複写画像を得るための電子写真装置におい
て、前記帯電プロセスに用いられ帯電ワイヤーの表面に
シロキサン結合を介してフッ化アルキル基を含有する化
学吸着膜を設けたことを特徴とする電子写真装置。1. An electrophotographic photosensitive member, charging, image exposure,
In an electrophotographic apparatus for obtaining a copied image by a process including development, transfer, fixing, and cleaning steps, chemisorption containing a fluorinated alkyl group through a siloxane bond on the surface of a charging wire used in the charging process. An electrophotographic apparatus comprising a film.
である請求項1に記載のクリーニング装置。2. The cleaning device according to claim 1, wherein the chemical adsorption film is a monomolecular film or a polymer film.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4103195A JPH0827563B2 (en) | 1992-04-22 | 1992-04-22 | Electrophotographic apparatus and manufacturing method thereof |
EP92111791A EP0524506B1 (en) | 1991-07-22 | 1992-07-10 | Electrophotographic apparatus |
DE69231531T DE69231531T2 (en) | 1991-07-22 | 1992-07-10 | Electrophotographic device |
US07/914,534 US5293209A (en) | 1991-07-22 | 1992-07-17 | Electrophotographic apparatus containing a chemical adsorption film coating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4103195A JPH0827563B2 (en) | 1992-04-22 | 1992-04-22 | Electrophotographic apparatus and manufacturing method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0643730A true JPH0643730A (en) | 1994-02-18 |
JPH0827563B2 JPH0827563B2 (en) | 1996-03-21 |
Family
ID=14347739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4103195A Expired - Fee Related JPH0827563B2 (en) | 1991-07-22 | 1992-04-22 | Electrophotographic apparatus and manufacturing method thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0827563B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015225240A (en) * | 2014-05-28 | 2015-12-14 | 住友理工株式会社 | Member for electrophotography |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57135955A (en) * | 1981-02-16 | 1982-08-21 | Ricoh Co Ltd | Corona discharger for electrophotographic process |
JPS6040254A (en) * | 1983-08-16 | 1985-03-02 | 旭硝子株式会社 | Water-repellent oil-repellent film |
JPH02248480A (en) * | 1989-03-22 | 1990-10-04 | Asahi Glass Co Ltd | Transparent substrate material with water-repellent and antistaining properties, and structure equipped therewith |
-
1992
- 1992-04-22 JP JP4103195A patent/JPH0827563B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57135955A (en) * | 1981-02-16 | 1982-08-21 | Ricoh Co Ltd | Corona discharger for electrophotographic process |
JPS6040254A (en) * | 1983-08-16 | 1985-03-02 | 旭硝子株式会社 | Water-repellent oil-repellent film |
JPH02248480A (en) * | 1989-03-22 | 1990-10-04 | Asahi Glass Co Ltd | Transparent substrate material with water-repellent and antistaining properties, and structure equipped therewith |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015225240A (en) * | 2014-05-28 | 2015-12-14 | 住友理工株式会社 | Member for electrophotography |
Also Published As
Publication number | Publication date |
---|---|
JPH0827563B2 (en) | 1996-03-21 |
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