JPH0255790B2 - - Google Patents
Info
- Publication number
- JPH0255790B2 JPH0255790B2 JP55185976A JP18597680A JPH0255790B2 JP H0255790 B2 JPH0255790 B2 JP H0255790B2 JP 55185976 A JP55185976 A JP 55185976A JP 18597680 A JP18597680 A JP 18597680A JP H0255790 B2 JPH0255790 B2 JP H0255790B2
- Authority
- JP
- Japan
- Prior art keywords
- latent image
- cleaning
- image carrier
- amount
- photoreceptor
- 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.)
- Expired - Lifetime
Links
- 238000004140 cleaning Methods 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 7
- 238000001454 recorded image Methods 0.000 claims description 4
- 108091008695 photoreceptors Proteins 0.000 description 22
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 19
- 230000000694 effects Effects 0.000 description 6
- 239000002033 PVDF binder Substances 0.000 description 5
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/0035—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a brush; Details of cleaning brushes, e.g. fibre density
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Description
【発明の詳細な説明】
本発明は、潜像担持体のクリーニング方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for cleaning a latent image carrier.
ドラム状もしくはベルト状に形成された潜像担
持体を連続的もしくは間欠的に回動させ、その周
面を定方向へ循環的に移動させつつ、上記周面
に、記録画像に対応する静電潜像を形成し、この
静電潜像を乾式現像し、得られる粉体の可視像を
記録シート上へ転写・定着する記録方式は、複写
装置等に関連して良く知られている。 A latent image carrier formed in the shape of a drum or belt is rotated continuously or intermittently, and while its circumferential surface is moved cyclically in a fixed direction, an electrostatic charge corresponding to the recorded image is applied to the circumferential surface. A recording method in which a latent image is formed, this electrostatic latent image is dry developed, and the resulting visible powder image is transferred and fixed onto a recording sheet is well known in connection with copying machines and the like.
潜像担持体には、光導電性のものと誘電性のも
のとがあり、光導電性の潜像担持体の場合には、
その帯電と露光とを通じて静電潜像が形成され
る。潜像担持体が誘電性のものである場合には、
静電潜像の形成は、マルチスタイラスやピンチユ
ーヴ等による、画像信号に応じた潜像担持体周面
の、位置選択的帯電によつて行なわれる。 There are two types of latent image carriers: photoconductive ones and dielectric ones. In the case of photoconductive latent image carriers,
An electrostatic latent image is formed through the charging and exposure. When the latent image carrier is dielectric,
The electrostatic latent image is formed by position-selective charging of the peripheral surface of the latent image carrier according to an image signal using a multi-stylus, pinch tube, or the like.
このようにして、潜像担持体周面上に形成され
た静電潜像は、カスケード現像方式や磁気ブラシ
現像方式等の所謂乾式現像方式により現像され
る。 The electrostatic latent image thus formed on the peripheral surface of the latent image carrier is developed by a so-called dry development method such as a cascade development method or a magnetic brush development method.
現像によつて得られる粉体の可視像は、普通紙
等の記録シート上へ転写・定着され、記録画像が
得られる。 The visible image of the powder obtained by development is transferred and fixed onto a recording sheet such as plain paper to obtain a recorded image.
ところで、粉体の可視像が記録シート上へ転写
されるとき、可視像を構成するトナーの一部が潜
像担持体上に残留してしまう。この残留トナー
は、これを除去しないまま放置すると、後続する
記録プロセスの際、記録画像の像質を低下させる
原因となる。そこで、可視像の転写後、新たな記
録プロセスの開始前に残留トナーのクリーニング
が行なわれる。 By the way, when a powder visible image is transferred onto a recording sheet, a portion of the toner constituting the visible image remains on the latent image carrier. If this residual toner is left unremoved, it will cause deterioration in the quality of the recorded image during the subsequent recording process. Therefore, after the transfer of the visible image, cleaning of residual toner is performed before starting a new recording process.
上記のクリーニングに係る技術としては例えば
次のものが知られている。 For example, the following techniques are known as techniques related to the above-mentioned cleaning.
その１つはクリーニング装置を設け、このクリ
ーニング装置の主要部を構成するブラシによりク
リーニング助剤を潜像担持体に供給する技術であ
る。ところで、潜像担持体表面にクリーニング助
剤の膜を一定厚さ以上に形成させなければ、充分
な効果が得られないものである。従つて、クリー
ニング助剤を潜像担持体表面に供給する場合に
は、助剤を供給しないで行なつていた従来のクリ
ーニング手段に比し、極端に強い圧力で、潜像担
持体に当接或いはブラシ回転しなければならなか
つた。そのために数万枚のコピーを行なつた後に
は、潜像担持体表面にひつかき傷が発生し、白す
じや黒すじとなつてコピー上にあらわれて画像を
乱す結果になつていた。 One of them is a technique in which a cleaning device is provided and a cleaning aid is supplied to the latent image carrier using a brush that constitutes the main part of the cleaning device. By the way, sufficient effects cannot be obtained unless a film of cleaning aid is formed on the surface of the latent image carrier to a certain thickness or more. Therefore, when a cleaning aid is supplied to the surface of the latent image carrier, it is brought into contact with the latent image carrier using an extremely strong pressure compared to conventional cleaning methods in which the cleaning aid is not supplied. Or the brush had to be rotated. For this reason, after tens of thousands of copies have been made, scratches occur on the surface of the latent image carrier, which appear as white or black streaks on the copies, disturbing the images.
他の技術は、現像剤中にクリーニング助剤を予
め添加しておき、そのような現像剤を用いること
によりクリーニング性能の向上を計ろうとするも
のである。しかしこの技術でも、十分なクリーニ
ング性能を得るような分量のクリーニング助剤を
添加すると、現像剤の物性が不安定となり、使用
初期の現像剤によるコピーと、多数のコピーを行
つた後での現像剤によるコピーとで画像濃度に差
が生じる等の欠点がある。 Another technique attempts to improve the cleaning performance by adding a cleaning aid to the developer in advance and using such a developer. However, even with this technology, if a cleaning aid is added in an amount sufficient to obtain sufficient cleaning performance, the physical properties of the developer will become unstable, and this will cause problems when copying with the developer at the initial stage of use and during development after making a large number of copies. There are drawbacks such as a difference in image density between copies made with agents.
本発明は上記の事情を背景としてなされたもの
で、潜像担持体や画像を何ら損なうことなく、し
かも十分なクリーニング効果を得ることのできる
潜像担持体のクリーニング方法を提供することを
目的とする。 The present invention has been made against the background of the above-mentioned circumstances, and an object of the present invention is to provide a method for cleaning a latent image carrier that can obtain a sufficient cleaning effect without damaging the latent image carrier or the image. do.
上記目的を達成するため、本発明は、クリーニ
ング助剤がトナーに対して0.01〜1.0wt％添加さ
れた現像剤を用いて現像を行なうとともに、固型
化されて不動部材に取付けられたクリーニング助
剤と潜像担持体とに共通に接触しつつ回転してい
るクリーニング部材を介して潜像担持体にクリー
ニング助剤を供給しつつクリーニングすることを
特徴としている。 In order to achieve the above object, the present invention performs development using a developer in which a cleaning aid is added in an amount of 0.01 to 1.0 wt% to the toner, and a cleaning aid that is solidified and attached to a fixed member. This method is characterized in that cleaning is performed while supplying a cleaning aid to the latent image carrier through a rotating cleaning member that is in common contact with the latent image carrier.
クリーニング助剤としては、ポリフツ化ビニリ
デンや脂肪酸金属塩例えばステアリン酸亜鉛等が
用いられる。 As cleaning aids, polyvinylidene fluoride and fatty acid metal salts such as zinc stearate are used.
ポリフツ化ピニリデンは常態では粉末状態であ
り、これをクリーニング助剤として、潜像担持体
周面に供給するには、加圧により容易に固体に成
形できるので、固体状態に成形して供給する。 Pinylidene polyfluoride is normally in a powder state, and in order to supply it to the peripheral surface of a latent image carrier as a cleaning aid, it can be easily molded into a solid by pressure, so it is supplied in a solid state.
第１図は、クリーニング助剤の供給を行なう方
式の記録装置の１例たる複写装置を、説明に必要
な部分のみ略示している。 FIG. 1 schematically shows only the parts necessary for explanation of a copying apparatus, which is an example of a recording apparatus that supplies a cleaning aid.
図中、符号１を以て示す潜像担持体としての感
光体はドラム状に形成され、矢印ａの方向へ回動
可能であり、その周辺部には、チヤージヤー２、
露光装置３、現像装置４、転写チヤージヤー５、
分離チヤージヤー６、分離爪７、クリーニング装
置８が、感光体回動方向へ上記順序で配備されて
いる。各機材の図示は、可能な限り簡略化されて
いる。例えば、露光装置３においては単にスリツ
トのみが図示されている。 In the figure, a photoreceptor as a latent image carrier indicated by reference numeral 1 is formed into a drum shape and is rotatable in the direction of arrow a.
exposure device 3, development device 4, transfer charger 5,
The separation charger 6, the separation claw 7, and the cleaning device 8 are arranged in the above order in the photoreceptor rotation direction. The illustrations of each piece of equipment have been simplified as much as possible. For example, in the exposure device 3, only the slit is shown.
複写プロセスは、以下の如く行なわれる。すな
わち、まず、感光体１が回動を開始すると、その
周面をチヤージヤー２が均一に帯電させ、ついで
露光光学系３によるスリツト露光により、複写原
稿の光像が照射されると、静電潜像が形成され
る。この静電潜像は、ついで現像装置４により乾
式現像され、得られる可視像は、図示されない記
録シート上へ、転写チヤージヤー５によつて静電
転写される。可視像を転写された記録シートは、
その後、分離チヤージヤー６と分離爪７とによ
り、感光体１の周面から分離され、ついで、図示
されない定着装置にり可視像を定着され、複写と
して装置外へ排出される。 The copying process takes place as follows. That is, first, when the photoreceptor 1 starts rotating, the charger 2 uniformly charges its circumferential surface, and then, when the light image of the copy document is irradiated by the exposure optical system 3 through slit exposure, the electrostatic latent An image is formed. This electrostatic latent image is then dry-developed by a developing device 4, and the resulting visible image is electrostatically transferred onto a recording sheet (not shown) by a transfer charger 5. The recording sheet to which the visible image has been transferred is
Thereafter, it is separated from the circumferential surface of the photoreceptor 1 by the separation charger 6 and the separation claw 7, and then the visible image is fixed by a fixing device (not shown), and the photoreceptor is ejected from the apparatus as a copy.
一方、可視像転写後の感光体１は、クリーニン
グ装置８により、周面上の残留トナーを除去され
る。 On the other hand, the cleaning device 8 removes residual toner on the circumferential surface of the photoreceptor 1 after the visible image has been transferred.
クリーニング装置８はケーシング９と、支持板
１０、支持板１０に取付けられたクリーニング助
剤１１、クリーニング助剤１１と感光体１間に設
けられたブラシ状のクリーニング部材１２等より
なつている。 The cleaning device 8 consists of a casing 9, a support plate 10, a cleaning aid 11 attached to the support plate 10, a brush-like cleaning member 12 provided between the cleaning aid 11 and the photoreceptor 1, and the like.
上記のクリーニング助剤１１としては例えば、
ポリフツ化ビニリデンや脂肪酸金属塩（例えばス
テアリン酸亜鉛）等が用いられる。これらの材料
からなるクリーニング助剤１１は図示されるよう
にブロツク状に成型され、感光体周面の幅と略同
程度の長さを有し、この長手方向を感光体１の軸
方向と平行にして不動部材としての支持板１０に
支持されている。クリーニング部材はその長手方
向にわたつてクリーニング助剤１１と潜像担持体
としての感光体１とに共通に接触している。従つ
て、感光体１の回動により、この共通に接触しつ
つ回転しているクリーニング部材を介してクリー
ニング助剤は、感光体周面に均一に供給される。 Examples of the above-mentioned cleaning aid 11 include:
Polyvinylidene fluoride, fatty acid metal salts (eg, zinc stearate), and the like are used. The cleaning aid 11 made of these materials is molded into a block shape as shown in the figure, and has a length approximately equal to the width of the circumferential surface of the photoreceptor, and its longitudinal direction is parallel to the axial direction of the photoreceptor 1. It is supported by a support plate 10 as an immovable member. The cleaning member is in common contact with the cleaning aid 11 and the photoreceptor 1 as a latent image carrier over its longitudinal direction. Therefore, as the photoreceptor 1 rotates, the cleaning aid is uniformly supplied to the circumferential surface of the photoreceptor through the cleaning member that rotates while being in common contact with each other.
なお、ポリフツ化ビニリデンは、その粉末をプ
レス型に入れて加圧するのみで、所望の形状に固
形化することができる。 Note that polyvinylidene fluoride can be solidified into a desired shape simply by putting the powder into a press mold and applying pressure.
以下、本発明によるクリーニング方法の実験例
を記す。 Experimental examples of the cleaning method according to the present invention will be described below.
実施例 １
実験用装置として、第１図に示す如きものを用
意した。感光体１における光導電層はセレンによ
り形成した。クリーニング助剤１１としてポリフ
ツ化ビニリデンを用い、感光体１に供給可能に設
定した。Example 1 An experimental apparatus as shown in FIG. 1 was prepared. The photoconductive layer in photoreceptor 1 was formed of selenium. Polyvinylidene fluoride was used as the cleaning aid 11 and was set to be able to be supplied to the photoreceptor 1.
現像剤は、酸化膜を有する平均粒径180μmの球
形鉄粉をキヤリアにして、下記処方により調整さ
れたトナーと混合したものを用いた。 The developer used was a carrier made of spherical iron powder having an oxide film and an average particle size of 180 μm, mixed with a toner prepared according to the following formulation.
そこで、上記のトナーの製法を述べると、先
ず、スチレン―ｎブチルメタクリレート共重合体
を100重量部とカーボンブラツクを10重量部を熱
溶融混練し、次いでジエツトミルにより微細化し
てから風力分級機により分級して個数平均粒径
5.5μmのトナーを作る。そして、このトナーに対
し、0.5wt％のステアリン酸亜鉛粉末（平均粒径
約1μm）をクリーニング助剤として該トナーに加
え、ミキサーにて混合し、補給トナーとする。 Therefore, to describe the manufacturing method of the above toner, first, 100 parts by weight of styrene-n-butyl methacrylate copolymer and 10 parts by weight of carbon black are hot-melted and kneaded, then pulverized using a jet mill, and then classified using an air classifier. number average particle size
Make 5.5μm toner. Then, 0.5 wt % of zinc stearate powder (average particle size of about 1 μm) is added to the toner as a cleaning aid and mixed in a mixer to obtain a replenishment toner.
この補給トナー60gと上記キヤリア2940gを４
ポツトに入れ30分混合撹拌する。こうして得ら
れた現像剤は、良好な現像性能を得るために必要
とされている条件（通常15〜25μc／ｇといわれ
ている）に適合するところの15.3μc／ｇの帯電量
を有している。 60g of this replenishment toner and 2940g of the above carrier
Pour into a pot and stir for 30 minutes. The developer obtained in this way has a charge amount of 15.3 μc/g, which meets the conditions required to obtain good development performance (usually said to be 15 to 25 μc/g). There is.
上記の現像剤を現像装置４に供給してコピーを
連続で10万枚とつたところ、その範囲内で十分な
クリーニング効果が得られ、又、感光体１上には
ほとんど傷らしきものは発生しておらず、且つ、
現像剤の物性も安定していた。ちなみに、10万枚
コピー後の現像剤の帯電量は21.5μc／ｇとなつて
おり、上記の現像剤の条件（15〜25μc／ｇ）に
適合している。 When the above developer was supplied to the developing device 4 and 100,000 copies were made continuously, a sufficient cleaning effect was obtained within that range, and almost no scratches appeared on the photoreceptor 1. and,
The physical properties of the developer were also stable. Incidentally, the amount of charge of the developer after copying 100,000 sheets was 21.5 μc/g, which complies with the above developer conditions (15 to 25 μc/g).
実験例 ２
上記実験例１において説明した補給トナー中の
ステアリン酸亜鉛に添加量（0.5wt％）に相当す
る量を変え、これと異なる他のいろいろな値に変
えて作つた現像剤を各種用意し、その各々を用い
て連続１万枚のコピーを行ない、実施可能な添加
量の許容範囲を調べた。Experimental Example 2 Various developers were prepared in which the amount equivalent to the added amount (0.5wt%) of zinc stearate in the replenishment toner explained in Experimental Example 1 above was changed, and various other values were changed. Using each of them, 10,000 copies were continuously made and the allowable range of the amount added was investigated.
その結果は第２図及び第３図に示す通りであ
る。 The results are shown in FIGS. 2 and 3.
第２図はステアリン酸亜鉛の添加量と感光体上
B4サイズの領域内に生じた傷の本数との関係を
示しており、ステアリン酸亜鉛の添加量が上記実
験例１で説明した如き分級後のトナーに対し
0.01wt％のときに感光体上に生じた傷の本数は１
本であり、同様に添加量が0.1twt％，0.5wt％，
1.0wt％のときは傷の本数はそれぞれ０本となつ
ている。この結果から、例えば、感光体上に生じ
た傷の本数が１本以下の領域K1を許容領域K1を
許容領域とすれば、この許容領域K1内に入るス
テアリン酸亜鉛の添加量（tw％）は0.01≧であ
る。 Figure 2 shows the amount of zinc stearate added and the amount on the photoreceptor.
The graph shows the relationship between the number of scratches that occur within the B4 size area, and the amount of zinc stearate added to the toner after classification as explained in Experimental Example 1 above.
The number of scratches on the photoreceptor at 0.01wt% is 1
Similarly, the additive amount is 0.1twt%, 0.5wt%,
At 1.0wt%, the number of scratches is 0. From this result, for example, if the area K 1 in which the number of scratches on the photoreceptor is one or less is defined as the allowable area, then the amount of zinc stearate added that falls within this allowable area K 1 ( tw%) is 0.01≧.
次に、第３図はステアリン酸亜鉛の添加量と、
現像剤初期帯電量から１万枚コピー後の現像剤帯
電量を差し引いた残りの帯電量（以下単に帯電量
の差という）との関係を調べたものである。通
常、画像濃度に大きな影響を与えないような帯電
量の差は、−5μc／ｇから＋5μc／ｇの範囲とされ
ているのでそのような領域K2を許容領域とすれ
ば、この許容領域K2内に入るステアリン酸亜鉛
の添加量（wt％）は1.0≦である。 Next, Figure 3 shows the amount of zinc stearate added,
The relationship between the initial charge amount of the developer and the remaining charge amount (hereinafter simply referred to as the difference in charge amount) obtained by subtracting the charge amount of the developer after copying 10,000 copies was investigated. Normally, the difference in charge amount that does not have a large effect on image density is within the range of -5 μc/g to +5 μc/g, so if such an area K 2 is considered as an allowable area, then this allowable area K The amount of zinc stearate added (wt%) falling within 2 is 1.0≦.
これらの検討から、傷の本数及び帯電量の差の
両条件を共通に満足するステアリン酸亜鉛の添加
量Ｊの目安はwt％で0.01≦Ｊ≦1.0であることが
わかる。 From these studies, it can be seen that the approximate amount J of zinc stearate to be added that satisfies both the conditions of the number of scratches and the difference in the amount of charge is 0.01≦J≦1.0 in wt%.
実験例 ３
上記実験例１，２ではクリーニング助剤１１と
してステアリン酸亜鉛を用いるとともに、トナー
添加剤もステアリン酸亜鉛を用いていた。これに
対し、本実験例では、クリーニング助剤１１とし
てポリフツ化ビニリデンを用い、トナー添加剤に
ステアリン酸亜鉛を用いた。現像剤の製法及び実
験方法は上記実験例１に説明したやり方に準ず
る。Experimental Example 3 In Experimental Examples 1 and 2 above, zinc stearate was used as the cleaning aid 11, and zinc stearate was also used as the toner additive. In contrast, in this experimental example, polyvinylidene fluoride was used as the cleaning aid 11, and zinc stearate was used as the toner additive. The developer manufacturing method and experimental method were similar to those described in Experimental Example 1 above.
この実験結果においても、コピーを連続で10万
枚とつた時点にて、まだ十分なクリーニング効果
が認められ、又、感光体１上にはほとんど傷らし
きものは発生しておらず、且つ、現像剤の物性も
安定していた。ちなみに10万枚コピー後の現像剤
の帯電量は20.5μc／ｇとなつておりこの値は前記
した現像剤の条件（15〜25μc／ｇ）に適合して
いる。 In the results of this experiment, even after 100,000 copies were made, a sufficient cleaning effect was still observed, and there were almost no scratches on the photoreceptor 1, and the development The physical properties of the agent were also stable. Incidentally, the amount of charge of the developer after 100,000 copies was 20.5 μc/g, and this value complies with the developer conditions (15 to 25 μc/g) described above.
実験例 ４
上記実験例１において説明した補給トナー中の
ステアリン酸亜鉛の添加量（0.5wt％）に相当す
る量を変え、これと異なる他のいろいろな値に変
えて作つた現像剤を各種用意し、その各々を用い
て連続１万枚のコピーを行ない、実施可能な添加
量の許容範囲を調べた。Experimental Example 4 Various developers were prepared in which the amount equivalent to the added amount of zinc stearate (0.5wt%) in the replenishment toner explained in Experimental Example 1 above was changed, and various other values were changed. Using each of these, 10,000 copies were continuously made, and the allowable range of the amount added was investigated.
その結果は第４図及び第５図に示す通りであ
る。 The results are shown in FIGS. 4 and 5.
第４図は第２図に準じてグラフ化されたもので
あり、感光体上に生じた傷の本数が１本以下の許
容領域K1内に入るステアリン酸亜鉛の添加量
（wt％）は0.01≧であると考えても問題はない。 Figure 4 is a graph based on Figure 2, and the amount of zinc stearate added (wt%) that falls within the tolerance range K1 where the number of scratches on the photoreceptor is one or less is There is no problem in considering that 0.01≧.
次に、第５図は前記第３図に準じてグラフ化さ
れたものであり、許容領域K2に入るステアリン
酸亜鉛の添加量は1.0≦とみてよい。 Next, FIG. 5 is a graph based on the above-mentioned FIG. 3, and it can be considered that the amount of zinc stearate added falls within the permissible range K2 at 1.0≦.
これらの検討から、傷の本数及び帯電量の差の
両条件を共通に満足するステアリン酸亜鉛の添加
量J′の目安はwt％で0.01≦J′≦1.0であるといえ
る。 From these studies, it can be said that the approximate amount J' of zinc stearate added that satisfies both the conditions of the number of scratches and the difference in the amount of charge is 0.01≦J′≦1.0 in wt%.
本発明によれば、潜像担持体や画像を何ら損な
うことなく、しかも十分なクリーニング効果を得
ることができる。 According to the present invention, a sufficient cleaning effect can be obtained without causing any damage to the latent image carrier or the image.
第１図は本発明の実施に適する複写装置の発明
に係る要部説明図、第２図、第４図はそれぞれ、
現像剤中に含まれるステアリン酸亜鉛の添加量と
１万枚連続コピー後に感光体上に生じた傷の本数
との関係を示したグラフ、第３図、第５図はそれ
ぞれ、現像剤中に含まれるステアリン酸亜鉛の添
加量と連続１万枚コピー前後での現像剤帯電量の
差との関係を示したグラフである。
１…（潜像担持体としての）感光体、１１…ク
リーニング助剤。
FIG. 1 is an explanatory diagram of the main parts of the invention of a copying apparatus suitable for carrying out the present invention, and FIGS. 2 and 4 are, respectively,
Figures 3 and 5 are graphs showing the relationship between the amount of zinc stearate contained in the developer and the number of scratches that occurred on the photoreceptor after 10,000 copies were made, respectively. 7 is a graph showing the relationship between the amount of zinc stearate added and the difference in developer charge amount before and after continuous copying of 10,000 sheets. 1... Photoreceptor (as a latent image carrier), 11... Cleaning aid.
Claims (1)
担持体を連続的もしくは間欠的に回動させ、その
周面を定方向へ循環的に移動させつつ、上記周面
に、記録画像に対応する静電潜像を形成し、この
静電潜像を乾式現像し、得られる粉体の可視像を
記録シート上へ転写・定着する方式の記録装置に
おいて、 クリーニング助剤がトナーに対して0.01〜
1.0wt％添加された現像剤を用いて現像を行なう
とともに、固型化されて不動部材に取付けられた
クリーニング助剤と潜像担持体とに共通に接触し
つつ回転しているクリーニング部材を介して潜像
担持体にクリーニング助剤を供給しつつクリーニ
ングすることを特徴とする潜像担持体のクリーニ
ング方法。[Scope of Claims] 1. A latent image carrier formed in the shape of a drum or a belt is rotated continuously or intermittently, and while its circumferential surface is cyclically moved in a fixed direction, In a recording device that forms an electrostatic latent image corresponding to a recorded image, develops this electrostatic latent image using a dry method, and transfers and fixes the resulting powder visible image onto a recording sheet, a cleaning aid is used. 0.01~ for toner
Developing is carried out using a developer containing 1.0 wt%, and the cleaning aid is solidified and attached to a stationary member through a rotating cleaning member that is in common contact with the latent image carrier. A method for cleaning a latent image carrier, comprising cleaning the latent image carrier while supplying a cleaning aid to the latent image carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18597680A JPS57111576A (en) | 1980-12-28 | 1980-12-28 | Cleaning method for latent image carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18597680A JPS57111576A (en) | 1980-12-28 | 1980-12-28 | Cleaning method for latent image carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57111576A JPS57111576A (en) | 1982-07-12 |
| JPH0255790B2 true JPH0255790B2 (en) | 1990-11-28 |
Family
ID=16180166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18597680A Granted JPS57111576A (en) | 1980-12-28 | 1980-12-28 | Cleaning method for latent image carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57111576A (en) |
-
1980
- 1980-12-28 JP JP18597680A patent/JPS57111576A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57111576A (en) | 1982-07-12 |
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