JPS5988776A - Electrophotographic method - Google Patents
Electrophotographic methodInfo
- Publication number
- JPS5988776A JPS5988776A JP19876682A JP19876682A JPS5988776A JP S5988776 A JPS5988776 A JP S5988776A JP 19876682 A JP19876682 A JP 19876682A JP 19876682 A JP19876682 A JP 19876682A JP S5988776 A JPS5988776 A JP S5988776A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- cleaning member
- hardness
- mohs hardness
- cleaning
- 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
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
- G03G21/0011—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 blade; Details of cleaning blades, e.g. blade shape, layer forming
- G03G21/0017—Details relating to the internal structure or chemical composition of the blades
Abstract
Description
【発明の詳細な説明】 〔技術分野〕 本発明は、電子写真方法に関するものである。[Detailed description of the invention] 〔Technical field〕 The present invention relates to an electrophotographic method.
従来、複写機内で用いる感光体表面のクリーニング手段
としてはブレードクリーニング方式がよく知られている
が、従来の感光体はモース硬度２のＳｅの如く、そのモ
ース硬度が２以下と極めて低いため、ブレード材料とし
て硬い材料を用いると感光体自体を傷つけたシ摩耗させ
たシするので。Conventionally, a blade cleaning method is well known as a means of cleaning the surface of a photoreceptor used in a copying machine, but since the conventional photoreceptor has an extremely low Mohs hardness of 2 or less, such as Se, which has a Mohs hardness of 2, the blade cleaning method is If a hard material is used, the photoreceptor itself may be damaged or worn out.
現爽には樹脂、エラストマー等の有機材料を用いている
ものである。このため、現像剤中キャリア、剤中異物等
のブレード材料よｐ硬い物質が実使用中にクリーニング
部に移動してくると、これらの物質によシブレードが摩
耗あるいは破損され、結果としてクリーニング不良を起
こし、最終的にはブレード自体を交換せざるを得ないも
のである。Organic materials such as resins and elastomers are used for the material. Therefore, if substances that are harder than the blade material, such as carriers in the developer or foreign substances in the developer, move to the cleaning section during actual use, these substances will wear or damage the blade, resulting in poor cleaning. This will eventually cause the blade itself to have to be replaced.
また、剤中にテフロン、シリコーン、フッ素系化合物、
ポリプロピレン、ポリエチレン等の低表面エネルギー物
質を含有する場合には、現像を反復すると細かいこれら
の物質の破片がキャリア表面よシ徐々に離脱し、それが
感光体上に強く付着し蓄積してフィルミング、を起こし
、続行すると黒ベタ上の白スジ等の異常画像が発生する
ものとなる。In addition, the agent contains Teflon, silicone, fluorine compounds,
When low surface energy substances such as polypropylene and polyethylene are contained, repeated development causes small fragments of these substances to gradually separate from the carrier surface, strongly adhere to and accumulate on the photoreceptor, resulting in filming. , and if you continue, abnormal images such as white streaks on solid black will occur.
本発明は、このような点に鑑みなされたもので、実使用
中に摩耗、破損による劣化が少なくて低表面エネルギー
物質のフィルミングをも防止できるクリーニング工程を
含み鮮明なコピーを提供しうる電子写真方法を得ること
を目的とする。The present invention has been devised in view of these points, and is an electronic device that is capable of providing clear copies, including a cleaning process that reduces deterioration due to wear and damage during actual use, and prevents filming of low surface energy substances. Aims to obtain photographic methods.
本発明の構成を以下に説明する。まず、感光体としては
、近年開発されている硬度の高いアモルファスシリコン
ａ−８ｔ（モース？ｉ［５〜６ ）ｌｉ光層の母体とし
て含み、かつ、その表層にモース硬度が７．０以上の物
質を積層したものが用いられる。The configuration of the present invention will be explained below. First, the photoreceptor is made of amorphous silicon A-8T (Mohs?i[5-6), which has been developed in recent years and has a high hardness, as the base material of the optical layer, and whose surface layer has a Mohs hardness of 7.0 or more. A layered material is used.
ここで、感光体表層の積層物質としては、モース硬度が
７．０以上あれば何でもよいが、たとえば、ａ −Ｂ
：Ｎ膜、ａ −Ｂ ：Ｎ：Ｃ膜、ａ−８１：Ｎ膜、ａ−
８ｌ：Ｏ膜。Here, any laminated material for the surface layer of the photoreceptor may be used as long as it has a Mohs hardness of 7.0 or more, but for example, a-B
:N film, a-B :N:C film, a-81:N film, a-
8l: O membrane.
ａ−８ｉ：Ｃ膜などが用いられる。しかして、この感光
体に接触してその表面のクリーニングを行なうクリーニ
ング部材、具体的にはクリーニングブレードの材料とし
て、モース硬度が２．５〜７．０の値をもつ物質を用い
るものである。なお、参考のため別表にモース硬度光を
示す。すなわち、感光体のモース硬度が７程度であるの
で、この感光体を傷つけないためクリーニング部材のモ
ース硬度は、まず、７以下に設定場れる。一方、モース
硬度が７．０以下といっても、たとえばモース硬度が２
以下であれはクリーニング部材が劣化し易いとともに、
低表面エネルギー物質によるフィルミングを防止できな
いので、これらの観点からりＩＪ ＝ング部材のモー
ス硬度の下限が２．５以上と設定されるものである。さ
らに、具体的にはモース硬度２．５〜７．０の金属製あ
るいは合金製のクリーニング部材を用いることが好まし
い。そして、このような感光体およびクリーニング部材
の特徴を除けば、従来の電子写真プロセスはすべてその
まま利用される。A-8i:C film or the like is used. Therefore, a material having a Mohs hardness of 2.5 to 7.0 is used as a material for a cleaning member, specifically a cleaning blade, which contacts the photoreceptor and cleans its surface. For reference, the Mohs hardness light is shown in the attached table. That is, since the Mohs hardness of the photoreceptor is about 7, the Mohs hardness of the cleaning member is first set to 7 or less in order not to damage the photoreceptor. On the other hand, even if the Mohs hardness is 7.0 or less, for example, the Mohs hardness is 2.
If it is below, the cleaning member is likely to deteriorate, and
Since filming due to low surface energy substances cannot be prevented, from these points of view, the lower limit of the Mohs hardness of the IJ = 2.5 or more is set. Furthermore, specifically, it is preferable to use a cleaning member made of metal or alloy with a Mohs hardness of 2.5 to 7.0. All conventional electrophotographic processes can be used as they are, except for the characteristics of the photoreceptor and cleaning member.
このようにアモルファスシリコンを含有する感光体に対
してモース硬度が２．５〜７．０の物質によるクリーニ
ング部材を用いることによシ、感光体を傷つけることが
ない条件下で、クリーニング部材の損傷をも防止してそ
の寿命、したがって又換時期を伸ばしてコストダウンを
図ることができる。この結果、クリーニング性能も維持
され、長期にわたって安定したコピーを提供でき、電子
写真プロセスの信頼性が向上する。また、キャリアコー
ト物質としてテフロン、シリコーン、フッ素系化合物、
ポリプロピレン、ポリエチレン等の低表面エネルギー物
質が現像剤中に含有されていても、クリーニング部材の
モース硬度が２．５以上あり、感光体の表面を強くクリ
ーニングすることができるため、低表面エネルギー物質
の感光体上へのフィルミングを防止でき、よって、この
フィルミングによる弊害を防止することができる。また
、クリーニング部材の材料選択の自由度も増す。そして
、金属１合金等を用いれば、比較的延展性に冨み、利用
度が高いものとなる。In this way, by using a cleaning member made of a substance with a Mohs hardness of 2.5 to 7.0 for a photoreceptor containing amorphous silicon, damage to the cleaning member can be prevented under conditions that do not damage the photoreceptor. It is also possible to prevent this, extend its lifespan, and therefore the replacement period, thereby reducing costs. As a result, cleaning performance is maintained, stable copies can be provided over a long period of time, and the reliability of the electrophotographic process is improved. In addition, Teflon, silicone, fluorine compounds,
Even if low surface energy substances such as polypropylene and polyethylene are contained in the developer, the cleaning member has a Mohs hardness of 2.5 or more and can strongly clean the surface of the photoreceptor. Filming on the photoconductor can be prevented, and therefore, harmful effects caused by this filming can be prevented. Furthermore, the degree of freedom in selecting the material for the cleaning member is increased. If a metal 1 alloy or the like is used, it has relatively good ductility and is highly usable.
ちなみに、あらかじめグロー放電分解法によｐ８０φＸ
３４０＋＋＋ｍのアルミニウムドラム上にａ−８ｔ：）
Ｌ：Ｂ層を２０μｍ堆梳し１その表面にａ −Ｂ 二Ｎ
層を１０００ Ｘ積層してなる感光体を試作し、この感
光体を株式会社リコー製ＦＴ−４０６０乾式電子写真複
写機内にセットし、クリーニングブレードとして真鍮を
用いて、ＦＴ−４０６０の通常のコピーモードで連続１
０万枚のコピーを取ったところ、その間に地汚れ、白ス
ジ、黒スジ等に代表される異常画像は認められず、また
、この１０万枚ランニング後の真鍮ブレードおよび感光
体乏面に顕著な劣化は認められなかったものである。By the way, p80φX was prepared by glow discharge decomposition method in advance.
A-8t on 340+++m aluminum drum :)
L: B layer is combed to a thickness of 20 μm, 1 a - B 2 N on the surface
A photoreceptor made of 1000× laminated layers was prototyped, and this photoreceptor was set in an FT-4060 dry electrophotographic copying machine manufactured by Ricoh Co., Ltd. Using a brass cleaning blade, the FT-4060 was set in the normal copy mode. 1 in a row
After making 100,000 copies, no abnormal images such as background stains, white streaks, black streaks, etc. were observed, and there were no noticeable abnormalities on the brass blade or photoreceptor surface after making 100,000 copies. No significant deterioration was observed.
また、上記クリーニングブレードをニッケルに代えて同
様に実験した場合も四球の効果が得られたものである。Furthermore, when a similar experiment was conducted in which the cleaning blade was replaced with nickel, a four-ball effect was obtained.
本発明は、上述したように感光層の母体にアモルファス
シリコンを含み、その表面にモース硬度が７．０以上の
物質を積層した感光体に対し、モース硬度が２．５〜７
．０の物質によるクリーニング部材を用いたので、感光
体を傷つけることのない条件下で、クリーニング部材自
体の損傷をも防止してその交換時期を延はしてコストダ
ウンを図ｐつつ、クリーニング性能の維持によシ長期に
わたって安定したコピーを提供でき、かつ、低表面エネ
ルギー物質のフィルミングをも防止して、フィルミング
による弊害を除去できる等の効果を有するものである。As described above, the present invention provides a photoreceptor having a Mohs hardness of 2.5 to 7.
．． Since we use a cleaning member made of 0 substances, we can prevent damage to the cleaning member itself under conditions that will not damage the photoreceptor, extend its replacement period, reduce costs, and improve cleaning performance. It is possible to provide stable copies over a long period of time during maintenance, and it also has the effect of preventing filming of low surface energy substances and eliminating the harmful effects of filming.
出 願 人 株式会社リコー ５１５−Sender: Ricoh Co., Ltd. 515-
Claims (1)
にモース硬度が７．０以上の物質を積層した感光体を使
用する電子写真方法において、モース硬度が２．５〜７
．０の物質によるクリーニング部材を用いることを特徴
とする電子写真方法。In an electrophotographic method using a photoreceptor in which the base of the photosensitive layer contains amorphous silicon and a material with a Mohs hardness of 7.0 or more is laminated on the surface, the photoreceptor has a Mohs hardness of 2.5 to 7.
．． An electrophotographic method characterized in that a cleaning member made of a substance of 0 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19876682A JPS5988776A (en) | 1982-11-12 | 1982-11-12 | Electrophotographic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19876682A JPS5988776A (en) | 1982-11-12 | 1982-11-12 | Electrophotographic method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5988776A true JPS5988776A (en) | 1984-05-22 |
Family
ID=16396578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19876682A Pending JPS5988776A (en) | 1982-11-12 | 1982-11-12 | Electrophotographic method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5988776A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0511848A2 (en) * | 1991-04-29 | 1992-11-04 | Xerox Corporation | Cleaning blade with inorganic reinforcement |
| JPH04129974U (en) * | 1991-05-22 | 1992-11-30 | 東洋エンジニアリング株式会社 | Three-way valve strainer device |
| JP2009229687A (en) * | 2008-03-21 | 2009-10-08 | Kyocera Mita Corp | Wet type image forming apparatus and wet type image forming method |
-
1982
- 1982-11-12 JP JP19876682A patent/JPS5988776A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0511848A2 (en) * | 1991-04-29 | 1992-11-04 | Xerox Corporation | Cleaning blade with inorganic reinforcement |
| JPH04129974U (en) * | 1991-05-22 | 1992-11-30 | 東洋エンジニアリング株式会社 | Three-way valve strainer device |
| JP2009229687A (en) * | 2008-03-21 | 2009-10-08 | Kyocera Mita Corp | Wet type image forming apparatus and wet type image forming method |
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