JPH0561383A - Cleanerless image forming method - Google Patents
Cleanerless image forming methodInfo
- Publication number
- JPH0561383A JPH0561383A JP24687291A JP24687291A JPH0561383A JP H0561383 A JPH0561383 A JP H0561383A JP 24687291 A JP24687291 A JP 24687291A JP 24687291 A JP24687291 A JP 24687291A JP H0561383 A JPH0561383 A JP H0561383A
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive drum
- removing member
- toner
- memory
- image forming
- 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
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Cleaning In Electrography (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、像担持体に露光して静
電潜像を形成し、着色粉により現像して、記録媒体に転
写する形式の画像形成方法、特に、メモリ除去部材を用
いたクリーナレス方式の画像形成方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming method of the type in which an electrostatic latent image is formed by exposing an image bearing member, and the electrostatic latent image is developed by a colored powder and transferred to a recording medium, and more particularly, a memory removing member is provided. The present invention relates to a cleanerless image forming method used.
【０００２】[0002]
【従来の技術】図３は、上述した形式の画像形成方法の
従来例における像担持体周辺の概略構成図である。図
中、１は感光ドラム、２は帯電器、３は露光手段、４は
現像器、５は現像器のバイアス電源、８は記録紙、１５
は転写器、１６はクリーナーである。像担持体として
は、この例のように、ドラム状の感光体を用いるのが普
通である。感光ドラム１は、矢印の方向に回転する。2. Description of the Related Art FIG. 3 is a schematic diagram of the periphery of an image carrier in a conventional example of the image forming method of the above-mentioned type. In the figure, 1 is a photosensitive drum, 2 is a charging device, 3 is an exposing means, 4 is a developing device, 5 is a bias power source for the developing device, 8 is recording paper, and 15
Is a transfer device, and 16 is a cleaner. As the image bearing member, a drum-shaped photosensitive member is usually used as in this example. The photosensitive drum 1 rotates in the direction of the arrow.
【０００３】画像形成プロセスは、感光ドラム１を帯電
器２で均一に帯電することにより開始され、ついで露光
手段３により静電潜像が形成される。露光は、光学系を
用いたスリット露光や、画像信号で変調されたレーザビ
ームなどにより行なわれる。ついで、現像器４で着色粉
であるトナーにより潜像を現像し、転写器１５で記録紙
８に転写し、画像形成が行なわれる。The image forming process is started by uniformly charging the photosensitive drum 1 with the charger 2, and then the electrostatic latent image is formed by the exposing means 3. The exposure is performed by slit exposure using an optical system, a laser beam modulated by an image signal, or the like. Subsequently, the developing device 4 develops the latent image with the toner, which is colored powder, and the transfer device 15 transfers the latent image to the recording paper 8 to form an image.
【０００４】転写後に感光ドラムに残留するトナーは、
クリーナー１６でクリーニングされる。クリーナー１６
としては、ブレード１６ａを用い、残留トナーを掻き落
として、搬送スクリュー１６ｂで外部の図示しないトナ
ー回収ボックスに送り出している。The toner remaining on the photosensitive drum after transfer is
It is cleaned by the cleaner 16. Cleaner 16
In this case, the blade 16a is used to scrape off the residual toner, and the conveying screw 16b sends it to an external toner recovery box (not shown).
【０００５】このようなブレードによる掻き落とし方式
のクリーナーは、回収ボックスのための空間を必要と
し、トナー回収ボックスの満杯を監視しなければならな
い。また、ブレード１６ａにより、感光ドラム１の表面
に疵がつき易く、感光ドラムの寿命を短くする問題もあ
る。Such a blade-type scraping-type cleaner requires a space for the recovery box and must monitor the fullness of the toner recovery box. Further, there is a problem that the surface of the photosensitive drum 1 is easily scratched by the blade 16a and the life of the photosensitive drum is shortened.
【０００６】掻き落としブレードを用いないクリーニン
グ方式も提案されている、特開昭６４−２０５８７号公
報に記載された画像形成装置においては、メモリ除去部
材が用いられている。図４は、その像担持体周辺の概略
構成図である。図中、図３と同様な部分には同じ符号を
付して説明を省略する。６はスコロトロン型の転写器、
７は高圧電源、９はバリスタ、１４はメモリ除去部材、
１７は高圧電源である。この画像形成装置においては、
電子計算機やワードプロセッサなどの外部出力装置に用
いることができるものである。A memory removing member is used in the image forming apparatus disclosed in Japanese Patent Application Laid-Open No. 64-20587, in which a cleaning method using no scraping blade has been proposed. FIG. 4 is a schematic configuration diagram around the image carrier. In the figure, parts similar to those in FIG. 3 are assigned the same reference numerals and explanations thereof are omitted. 6 is a scorotron type transfer device,
7 is a high voltage power supply, 9 is a varistor, 14 is a memory removing member,
Reference numeral 17 is a high voltage power supply. In this image forming apparatus,
It can be used for an external output device such as an electronic computer or a word processor.
【０００７】記録を行なうには、印字開始信号により、
感光ドラム１が回転し、帯電器２で帯電される。帯電電
位は、図６に示すＶ0 、例えば、−７００Ｖである。露
光手段３は、電子計算機やワードプロセッサなどからの
ドットイメージデータにより変調されたレーザビームが
感光ドラム１上を走査露光して、静電潜像を形成する。To perform recording, a print start signal
The photosensitive drum 1 rotates and is charged by the charger 2. The charging potential is V 0 shown in FIG. 6, for example, −700V. The exposure unit 3 scans and exposes the photosensitive drum 1 with a laser beam modulated by dot image data from an electronic computer or a word processor to form an electrostatic latent image.
【０００８】図５（Ａ）は、感光ドラム１上に残留した
トナーが存在している場合の帯電状態の説明図である。
感光ドラム１が、帯電電位Ｖ0 に帯電されるから、残留
トナーａ，ｂも同じ電位Ｖ0 に帯電される。残留トナー
ａ，ｂの下の感光体も同じ電位Ｖ0 に帯電される。FIG. 5A is an explanatory diagram of a charged state when the residual toner remains on the photosensitive drum 1.
Since the photosensitive drum 1 is charged to the charging potential V 0 , the residual toners a and b are also charged to the same potential V 0 . The photoconductors under the residual toners a and b are also charged to the same potential V 0 .
【０００９】図５（Ｂ）は、露光状態の説明図である。
露光部分は、図６の露光電位Ｖc となる静電潜像を形成
するから、その部分における残留トナーｂも露光電位Ｖ
c となる。露光部分における残留トナーは、それが小さ
い面積に、例えば、１粒づつに分散されている場合には
残留トナーの下の感光体も感光される。大きい面積に集
合されて存在する場合には、その下の感光体には、露光
不足を生じる。しかし、露光不足部分が、周囲の露光さ
れた部分に付着したトナーによって埋められてしまう程
度の場合には、残留トナーの集合は問題とならない。し
たがって、後述するように、メモリ除去部材によって、
残留したトナーが、露光に問題とならない程度に分散さ
れていれば、残留トナーは、実質的に無視してよいこと
になる。FIG. 5B is an explanatory diagram of an exposure state.
Since the exposed portion forms an electrostatic latent image having the exposure potential V c in FIG. 6, the residual toner b in that portion also has the exposure potential V c.
c . When the residual toner in the exposed portion is dispersed in a small area, for example, one particle at a time, the photoconductor under the residual toner is also exposed. When the photoconductors located under a large area are aggregated, there is underexposure. However, when the underexposed portion is filled with the toner adhering to the surrounding exposed portion, the residual toner is not a problem. Therefore, as will be described later, by the memory removing member,
If the residual toner is dispersed to such an extent that exposure is not a problem, the residual toner can be substantially ignored.
【００１０】現像器４は、現像電位Ｖb1、例えば、−４
５０Ｖで潜像を現像する。図５（Ｃ）に示すように、現
像器中のトナーが露光部分に現像されて付着する。露光
部分における残留トナーｂは、残留したままとなるが、
問題はない。非露光部分における残留トナーａは、現像
器４に戻り、クリーニングが達成できる。帯電電位Ｖ0
と現像電位Ｖb1との差、 ＶCL＝Ｖb1−Ｖ0 をクリーニング電位と呼ぶことにする。The developing device 4 has a developing potential V b1 , for example, -4.
Develop the latent image at 50V. As shown in FIG. 5C, the toner in the developing device is developed and adheres to the exposed portion. The residual toner b in the exposed portion remains,
No problem. The residual toner a in the non-exposed portion returns to the developing device 4 and cleaning can be achieved. Charging potential V 0
And the developing potential V b1 , V CL = V b1 −V 0 is called a cleaning potential.
【００１１】転写は、スコロトロン型のチャージャーを
用いて行なわれる。スコロトロン型を用いることによっ
て、コロナワイヤー６ａには、高圧電源７から５ｋＶ以
上の電圧をかけることができ、放電を安定させることが
できる。グリッド６ｂには、バリスタ９が接続され、コ
ロナ電流の一部により、定電圧、例えば、５６０Ｖを発
生する。したがって、グリッド電位は、５６０Ｖとな
る。転写電位により現像されたトナーは、記録紙８に転
写され、図示しない定着装置により転写されたトナーが
定着され、記録紙が排出される。転写により、感光ドラ
ムは、露光部分において、転写後電位ＶT 、例えば、１
００Ｖとなる。なお、非露光部分は、０〜−８０Ｖ程度
となる。The transfer is performed using a scorotron type charger. By using the scorotron type, a voltage of 5 kV or more can be applied to the corona wire 6a from the high voltage power supply 7, and the discharge can be stabilized. A varistor 9 is connected to the grid 6b, and a constant voltage, for example, 560V is generated by a part of the corona current. Therefore, the grid potential is 560V. The toner developed by the transfer potential is transferred to the recording paper 8, the transferred toner is fixed by a fixing device (not shown), and the recording paper is ejected. By the transfer, the photosensitive drum is exposed to the post-transfer potential V T , for example, 1
It becomes 00V. In addition, the non-exposed portion is about 0 to -80V.
【００１２】次に、感光ドラム１には、高圧電源１７に
接続されたメモリ除去部材１４によって、メモリ除去電
位Ｖb2が与えられる。メモリ除去電位Ｖb2は、１００〜
７００Ｖが適当である。メモリ除去部材１４としては、
ブラシが用いられる。メモリ除去部材１４は、残留トナ
ーを一旦静電的に吸着し、その後感光ドラム１へ自然に
はき出して感光ドラム１上での付着位置を変えることに
よって、結果的に残留トナーのパターンを拡散する作用
をもたらしている。Next, the memory removal potential V b2 is applied to the photosensitive drum 1 by the memory removal member 14 connected to the high voltage power supply 17. The memory removal potential V b2 is 100 to
700V is suitable. As the memory removing member 14,
A brush is used. The memory removing member 14 once electrostatically adsorbs the residual toner, and then spontaneously ejects it to the photosensitive drum 1 to change the adhesion position on the photosensitive drum 1 and consequently diffuse the residual toner pattern. Is brought.
【００１３】この作用によって、上述したように、残留
トナーは次に行なわれる露光に障害となることはなく、
また、非露光部の残留トナーは、現像と同時に現像器４
に回収され、結果的にクリーニングが行なわれたことに
なる。Due to this action, as described above, the residual toner does not interfere with the next exposure, and
In addition, the residual toner in the non-exposed area is developed at the same time as the development.
It was collected and was eventually cleaned.
【００１４】このようなクリーナレス方式は、回収ボッ
クスのための空間が不必要であり、トナー回収ボックス
の満杯を監視する必要もない。また、掻き落としブレー
ドを用いないから、感光ドラムの表面に疵をつけるとい
う問題もなく、感光ドラムの寿命の面からも有利であ
る。In such a cleanerless system, a space for the recovery box is unnecessary, and it is not necessary to monitor the fullness of the toner recovery box. Further, since no scraping blade is used, there is no problem of scratching the surface of the photosensitive drum, which is advantageous from the viewpoint of life of the photosensitive drum.
【００１５】しかしながら、メモリ除去部材１４による
残留トナーの拡散作用は、上述したように、メモリ除去
部材１４が残留トナーを一旦静電的に吸着し、その後感
光ドラム１へ自然にはき出して感光ドラム１上での付着
位置を変えることによって、結果的に残留トナーのパタ
ーンを拡散させることにより行なわれるものである。し
たがって、画像形成プロセスを繰り返していくと、メモ
リ除去部材であるブラシに、トナーの飽和した部分とそ
うでない部分とが生じ易いことがわかった。However, as described above, the residual toner diffusing action of the memory removing member 14 is such that the memory removing member 14 once electrostatically adsorbs the residual toner and then spontaneously ejects the residual toner onto the photosensitive drum 1. This is done by changing the above-described adhesion position and consequently diffusing the residual toner pattern. Therefore, it has been found that when the image forming process is repeated, the brush, which is the memory removing member, is likely to have a toner saturated portion and a toner saturated portion.
【００１６】ブラシがトナーで飽和した部分では、トナ
ーを散らすことができず、トナーがそのまま感光ドラム
上に残ることになる。感光ドラムには、ブラシの同じと
ころが常時当たっているため、トナーが散らされない状
態が継続することになり、ついには、残留したトナーが
感光ドラム表面に固着してしまう。In the portion where the brush is saturated with toner, the toner cannot be scattered, and the toner remains on the photosensitive drum as it is. Since the same part of the brush is constantly in contact with the photosensitive drum, the state in which the toner is not scattered continues, and the residual toner is finally fixed on the surface of the photosensitive drum.
【００１７】感光ドラム表面にトナーが固着する現象
は、フィルミング（ｆｉｌｍｍｉｎｇ）と呼ばれている
が、この現象が生じると、記録紙上には白抜けが発生
し、画像の質が低下する。The phenomenon in which toner adheres to the surface of the photosensitive drum is called filming. When this phenomenon occurs, white spots occur on the recording paper and the image quality deteriorates.
【００１８】なお、感光ドラムとして負帯電用のＯＰＣ
を用いて説明したが、正帯電のＯＰＣでも同様である。As a photosensitive drum, an OPC for negative charging is used.
However, the same applies to the positively charged OPC.
【００１９】[0019]
【発明が解決しようとする課題】本発明は、上述した事
情に鑑みてなされたもので、メモリ除去部材による残留
トナーの散らし作用を改善することにより、フィルミン
グを防止できるクリーナレス画像形成方法を提供するこ
とを目的とするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and provides a cleanerless image forming method capable of preventing filming by improving the function of distributing the residual toner by the memory removing member. It is intended to be provided.
【００２０】[0020]
【課題を解決するための手段】本発明は、像担持体を帯
電し、前記像担持体に静電潜像を形成し、前記静電潜像
を着色粉により現像し、現像された着色粉を記録媒体に
転写し、メモリ除去部材により前記像担持体の残留着色
粉を乱すようにしたクリーナレス画像形成方法におい
て、前記メモリ除去部材に動きを与えることを特徴とす
るものである。According to the present invention, an image bearing member is charged, an electrostatic latent image is formed on the image bearing member, the electrostatic latent image is developed with colored powder, and the developed colored powder is used. In a cleanerless image forming method in which the residual coloring powder on the image carrier is disturbed by the memory removing member, and the memory removing member is moved.
【００２１】[0021]
【実施例】図１は、本発明のクリーナレス画像形成方法
の一実施例が適用される画像形成装置における像担持体
周辺の概略構成図である。図中、１は感光ドラム、２は
帯電器、３は露光手段、４は現像器、５は現像器のバイ
アス電源、６はスコロトロン型の転写器、７は高圧電
源、８は記録紙、９はバリスタ、１０は抵抗、１１はコ
ンデンサー、１２は可変抵抗、１３は抵抗、１４はメモ
リ除去部材である。図４で説明したものと同様に、電子
計算機やワードプロセッサなどの外部出力装置に用いる
場合について説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic configuration diagram of the periphery of an image carrier in an image forming apparatus to which an embodiment of the cleanerless image forming method of the present invention is applied. In the figure, 1 is a photosensitive drum, 2 is a charging device, 3 is an exposing means, 4 is a developing device, 5 is a bias power supply for the developing device, 6 is a scorotron type transfer device, 7 is a high voltage power supply, 8 is a recording paper, and 9 is a recording paper. Is a varistor, 10 is a resistor, 11 is a capacitor, 12 is a variable resistor, 13 is a resistor, and 14 is a memory removing member. Similar to the case described with reference to FIG. 4, the case of using it in an external output device such as an electronic computer or a word processor will be described.
【００２２】帯電、露光、現像、転写、メモリ除去につ
いては、図４で説明したと同様であるが、この実施例で
は、メモリ除去部材１４への高圧電源は、スコロトロン
型の転写器６のグリッド電位を利用している。すなわ
ち、グリッド６ｂには、バリスタ９が接続され、コロナ
電流の一部により、定電圧、例えば、５６０Ｖを発生す
る。したがって、グリッド電位が５６０Ｖとなること
は、図４と同様である。この電圧を抵抗１０を介して可
変抵抗１２で分圧し、抵抗１３を介してメモリ除去部材
１４に印加している。メモリ除去部材１４は、この実施
例ではブラシを用いて、後述するように、図示しない駆
動手段により振動を与ている。したがって、感光ドラム
１に対するブラシの対向位置が変化し、特定の部位にト
ナーが散らされない状態が継続することがなく、フィル
ミングを防止することができる。The charging, exposure, development, transfer, and memory removal are the same as those described with reference to FIG. 4, but in this embodiment, the high voltage power supply to the memory removal member 14 is the grid of the scorotron type transfer device 6. It uses the electric potential. That is, the varistor 9 is connected to the grid 6b, and a constant voltage, for example, 560V is generated by a part of the corona current. Therefore, the grid potential becomes 560 V, as in FIG. This voltage is divided by the variable resistor 12 via the resistor 10 and applied to the memory removal member 14 via the resistor 13. The memory removing member 14 uses a brush in this embodiment, and is vibrated by a driving unit (not shown) as described later. Therefore, the facing position of the brush with respect to the photosensitive drum 1 does not change, and the state in which toner is not scattered on a specific portion does not continue, and filming can be prevented.
【００２３】メモリ除去部材１４への電源を、スコロト
ロン型転写器６のグリッド電位を利用した場合に、記録
紙８が転写器６の下を通過しているときのみ、転写器６
のコロナワイヤー６ａにかける電圧をオンとなるように
し、記録紙８の前後の感光体のむき出し部分がプラス帯
電しないようにすると、記録紙８の後端が転写器６を通
過したときに、メモリ除去部材１４への印加電圧は０Ｖ
となる。そうすると、転写器６の電圧がオフとなった時
の、感光ドラム１におけるメモリ除去部材１４と転写器
６との間にある感光体部分については、それがメモリ除
去部材１４の位置に達したときには、メモリ除去部材１
４の電位は０Ｖとなるから、残留トナーの分散作用を行
なわせることはできない。そればかりか、メモリ除去部
材１４と転写器６との間にある感光体部分は、転写後電
位に帯電されているから、メモリ除去部材１４に付着し
たトナーが、感光体に移動し、現像されてしまうことに
なる。転写器６の電圧のオフが、記録紙が通過した後に
行なわれる場合には、転写後電位が高くなるから、残留
トナーの感光ドラム１への現像は不可避である。When the grid potential of the scorotron type transfer device 6 is used as the power supply to the memory removing member 14, only when the recording paper 8 is passing below the transfer device 6, the transfer device 6
When the voltage applied to the corona wire 6a is turned on so that the exposed portions of the photoconductor before and after the recording paper 8 are not positively charged, when the rear end of the recording paper 8 passes the transfer device 6, the memory The applied voltage to the removing member 14 is 0V
Becomes Then, regarding the photosensitive member portion between the memory removing member 14 and the transfer device 6 in the photosensitive drum 1 when the voltage of the transfer device 6 is turned off, when it reaches the position of the memory removing member 14. , Memory removal member 1
Since the potential of No. 4 is 0 V, it is impossible to disperse the residual toner. In addition, since the photosensitive member portion between the memory removing member 14 and the transfer unit 6 is charged to the electric potential after transfer, the toner attached to the memory removing member 14 moves to the photosensitive member and is developed. Will be lost. When the voltage of the transfer device 6 is turned off after the recording paper has passed, the potential after transfer becomes high, and therefore development of residual toner on the photosensitive drum 1 is inevitable.
【００２４】コンデンサー１１は、感光ドラム１への現
像を回避するために設けたものである。転写器６の電圧
がオフとなった時に位置した感光ドラム１の部分が、メ
モリ除去部材１４に達するまで、メモリ除去部材１４の
電圧をコンデンサー１１が記憶できるよう、コンデンサ
ー１１の放電時定数を設定しておくことにより、上述し
た残留トナーの問題と、メモリ除去部材１４から感光ド
ラム１への現像を防止することができる。The condenser 11 is provided to avoid development on the photosensitive drum 1. The discharge time constant of the capacitor 11 is set so that the capacitor 11 can store the voltage of the memory removing member 14 until the portion of the photosensitive drum 1 located when the voltage of the transfer device 6 is turned off reaches the memory removing member 14. By doing so, it is possible to prevent the above-mentioned problem of the residual toner and the development from the memory removing member 14 to the photosensitive drum 1.
【００２５】可変抵抗１２は、不使用時におけるコンデ
ンサー１１の放電と、メモリ除去部材１４への印加電圧
を可調整とするために設けたものであるから、固定抵抗
に換えてもよいし、必ずしも必要とするものでもない。
また、抵抗１３は、点検時等にコンデンサー１１の残留
電圧からの感電を防止するための保護抵抗として挿入し
たものであり、省略しても差し支えない。また、上述し
た電圧値は、例示であって、トナーの特性等により適宜
の電圧値が設定されるものである。また、バリスタもこ
れに限られるものではなく、ゼナーダイオード等、他の
素子を用いることができる。Since the variable resistor 12 is provided to discharge the capacitor 11 when not in use and to adjust the voltage applied to the memory removing member 14, the variable resistor 12 may be replaced with a fixed resistor, or not necessarily. It's not what you need.
Further, the resistor 13 is inserted as a protective resistor for preventing electric shock from the residual voltage of the capacitor 11 at the time of inspection, and may be omitted. The above-mentioned voltage value is an example, and an appropriate voltage value is set according to the characteristics of the toner and the like. Also, the varistor is not limited to this, and other elements such as a Zener diode can be used.
【００２６】図２は、図１におけるメモリ除去部材の詳
細図である。図中、１は感光ドラム、２０はフレーム、
２１はブラシ、２２は支持金具、２３は取付軸、２４は
絶縁ブッシュ、２５はソレノイドである。ブラシ２１は
支持金具２２に固定され、支持金具２２の取付軸２３は
絶縁ブッシュ２３を介してフレーム２０に嵌挿されてい
る。取付軸２３の一方は、ソレノイド２５に結合されて
おり、軸方向に駆動される。画像形成動作中に、ソレノ
イド２５を作動させることにより、ブラシ２１が振動さ
れるから、感光ドラム１に対するブラシの対向位置が変
化し、フィルミングを避けることができる。ソレノイド
２５の作動は、連続して行なっても、間欠的に行なうよ
うにしてもよい。FIG. 2 is a detailed view of the memory removing member shown in FIG. In the figure, 1 is a photosensitive drum, 20 is a frame,
Reference numeral 21 is a brush, 22 is a support fitting, 23 is a mounting shaft, 24 is an insulating bush, and 25 is a solenoid. The brush 21 is fixed to a support fitting 22, and a mounting shaft 23 of the support fitting 22 is fitted and inserted in the frame 20 via an insulating bush 23. One of the mounting shafts 23 is connected to the solenoid 25 and is driven in the axial direction. Since the brush 21 is vibrated by operating the solenoid 25 during the image forming operation, the facing position of the brush with respect to the photosensitive drum 1 changes, and filming can be avoided. The solenoid 25 may be operated continuously or intermittently.
【００２７】また、ブラシ２１の駆動手段は、モーター
等、他の駆動手段を利用することができる。感光ドラム
１の回転駆動系からカム機構やリンク機構を駆動するよ
うにしてもよく、ブラシ２１に振動、あるいは、揺動が
与えられる適宜の駆動手段を利用することができる。Further, as the driving means for the brush 21, other driving means such as a motor can be used. The cam mechanism or the link mechanism may be driven from the rotary drive system of the photosensitive drum 1, and an appropriate drive means that gives vibration or swing to the brush 21 can be used.
【００２８】メモリ除去部材としては、上述したブラシ
に限られるものではなく、回転ブラシ、ローラー、ブレ
ード状の板状体等を用いることができる。回転ブラシ等
の回転体を用いた場合には、軸方向の動きを省略して回
転運動による動きによっても、フィルミングを防止する
ことができる。The memory removing member is not limited to the above-mentioned brush, but a rotating brush, a roller, a blade-shaped plate, or the like can be used. When a rotating body such as a rotating brush is used, the filming can be prevented by omitting the movement in the axial direction and also by the movement due to the rotational movement.
【００２９】[0029]
【発明の効果】以上の説明から明らかなように、本発明
によれば、メモリ除去部材に動きを与えたことにより、
フィルミングを防止することができ、画質のよい画像形
成装置を提供できるという効果がある。As is apparent from the above description, according to the present invention, since the memory removing member is moved,
There is an effect that filming can be prevented and an image forming apparatus with high image quality can be provided.
【図１】本発明のクリーナレス画像形成方法の一実施例
が適用される画像形成装置の像担持体周辺の概略構成図
である。FIG. 1 is a schematic configuration diagram around an image carrier of an image forming apparatus to which an embodiment of a cleanerless image forming method of the present invention is applied.
【図２】図１のメモリ除去部材の詳細図である。FIG. 2 is a detailed view of the memory removal member of FIG.
【図３】従来の画像形成装置の像担持体周辺の概略構成
図である。FIG. 3 is a schematic configuration diagram around an image carrier of a conventional image forming apparatus.
【図４】メモリ除去部材を用いた従来の画像形成装置の
像担持体周辺の概略構成図である。FIG. 4 is a schematic configuration diagram around an image carrier of a conventional image forming apparatus using a memory removing member.
【図５】メモリ除去部材のクリーニング作用の説明図で
ある。FIG. 5 is an explanatory diagram of a cleaning action of the memory removing member.
【図６】電位配分の説明図であるFIG. 6 is an explanatory diagram of potential distribution.
１ 感光ドラム ２ 帯電器 ３ 露光手段 ４ 現像器 ６ 転写器 ７ 高圧電源 ８ 記録紙 ９ バリスタ １０，１２，１３ 抵抗 １１ コンデンサー １４ メモリ除去部材 ２１ ブラシ ２２ 支持金具 ２３ 取付軸 ２４ 絶縁ブッシュ ２５ ソレノイド DESCRIPTION OF SYMBOLS 1 Photosensitive drum 2 Charging device 3 Exposure means 4 Developing device 6 Transfer device 7 High-voltage power supply 8 Recording paper 9 Varistor 10, 12, 13 Resistor 11 Condenser 14 Memory removing member 21 Brush 22 Support metal fitting 23 Mounting shaft 24 Insulating bush 25 Solenoid
Claims (1)
潜像を形成し、前記静電潜像を着色粉により現像し、現
像された着色粉を記録媒体に転写し、メモリ除去部材に
より前記像担持体の残留着色粉を乱すようにしたクリー
ナレス画像形成方法において、前記メモリ除去部材に動
きを与えることを特徴とするクリーナレス画像形成方
法。1. An electrostatic latent image is formed on the image bearing member by charging the image bearing member, the electrostatic latent image is developed with colored powder, and the developed colored powder is transferred to a recording medium, and a memory is provided. A cleanerless image forming method in which residual coloring powder on the image carrier is disturbed by a removing member, wherein the memory removing member is moved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24687291A JPH0561383A (en) | 1991-08-30 | 1991-08-30 | Cleanerless image forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24687291A JPH0561383A (en) | 1991-08-30 | 1991-08-30 | Cleanerless image forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0561383A true JPH0561383A (en) | 1993-03-12 |
Family
ID=17154992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24687291A Pending JPH0561383A (en) | 1991-08-30 | 1991-08-30 | Cleanerless image forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0561383A (en) |
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0706097A2 (en) | 1994-10-03 | 1996-04-10 | Canon Kabushiki Kaisha | Image forming method |
| EP0712048A1 (en) | 1994-11-08 | 1996-05-15 | Canon Kabushiki Kaisha | Image forming method and image forming apparatus |
| EP0713161A2 (en) | 1994-11-18 | 1996-05-22 | Canon Kabushiki Kaisha | Image forming apparatus |
| JPH08305074A (en) * | 1994-11-28 | 1996-11-22 | Canon Inc | Image forming method |
| US5753396A (en) * | 1994-11-28 | 1998-05-19 | Canon Kabushiki Kaisha | Image forming method |
| US5915150A (en) * | 1996-02-20 | 1999-06-22 | Canon Kabushiki Kaisha | Image forming method utilizing toner having inorganic particles and particles of a specific sphericity |
| US5976755A (en) * | 1997-04-30 | 1999-11-02 | Canon Kabushiki Kaisha | Image forming method featuring a residual charge control property resulting from a selected toner formulation |
| US6013406A (en) * | 1997-03-11 | 2000-01-11 | Canon Kabushiki Kaisha | Toner for developing electrostatic images, and image-forming method |
| US6026260A (en) * | 1997-10-21 | 2000-02-15 | Canon Kabushiki Kaisha | Electrophotographic apparatus, image forming method and process cartridge |
| US6077635A (en) * | 1997-06-18 | 2000-06-20 | Canon Kabushiki Kaisha | Toner, two-component developer and image forming method |
| US6157801A (en) * | 1998-06-11 | 2000-12-05 | Canon Kabushiki Kaisha | Magnetic particles for charging, charging member, charging device, process cartridge, and electrophotographic apparatus |
| US6214509B1 (en) | 1998-05-13 | 2001-04-10 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6285848B1 (en) | 1997-06-13 | 2001-09-04 | Canon Kabushiki Kaisha | Electrophotographic apparatus, image forming method, and process cartridge for developing an image with toner containing an external additive |
| US6321059B1 (en) | 1999-09-30 | 2001-11-20 | Canon Kabushiki Kaisha | Image forming apparatus |
| US6438343B1 (en) | 1999-02-12 | 2002-08-20 | Canon Kabushiki Kaisha | Image forming apparatus |
| US6447969B1 (en) | 1999-06-02 | 2002-09-10 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6465144B2 (en) | 2000-03-08 | 2002-10-15 | Canon Kabushiki Kaisha | Magnetic toner, process for production thereof, and image forming method, apparatus and process cartridge using the toner |
| US6596452B2 (en) | 2000-02-21 | 2003-07-22 | Canon Kabushiki Kaisha | Magnetic toner and image-forming method making use of the same |
| US6610454B2 (en) | 1997-09-05 | 2003-08-26 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6635398B1 (en) | 1999-10-26 | 2003-10-21 | Canon Kabushiki Kaisha | Dry toner, dry toner production process, and image forming method |
| US6696211B2 (en) | 2000-02-21 | 2004-02-24 | Canon Kabushiki Kaisha | Developer, image-forming method, and process cartridge |
| US6829445B2 (en) | 2002-03-29 | 2004-12-07 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having a cleaning mechanism for cleaning a photosensitive member |
| US6873816B2 (en) | 2001-08-20 | 2005-03-29 | Canon Kabushiki Kaisha | Developing assembly, process cartridge and image-forming method |
| US6879793B2 (en) | 2002-06-19 | 2005-04-12 | Canon Kabushiki Kaisha | Method for forming image |
| US6897001B2 (en) | 2001-09-28 | 2005-05-24 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6924076B2 (en) | 2001-08-20 | 2005-08-02 | Canon Kabushiki Kaisha | Developing assembly, process cartridge and image-forming method |
| US6987939B2 (en) | 2002-10-02 | 2006-01-17 | Canon Kabushiki Kaisha | Image forming apparatus with two cleaning electric fields for transferring developer from a developer charging device onto an image bearing member |
| US7150953B2 (en) | 2002-09-12 | 2006-12-19 | Canon Kabushiki Kaisha | Developer |
| US7428395B2 (en) | 2005-03-21 | 2008-09-23 | Kabushiki Kaisha Toshiba | Image forming apparatus equipped with developing unit to make developing and simultaneous cleaning and image forming method |
| KR100896357B1 (en) * | 2007-01-10 | 2009-05-08 | 가부시끼가이샤 도시바 | Image forming apparatus |
| US7778573B2 (en) * | 2006-12-26 | 2010-08-17 | Ricoh Company, Ltd. | Image forming apparatus and process cartridge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60230171A (en) * | 1984-04-27 | 1985-11-15 | Casio Comput Co Ltd | Image forming device |
| JPH01164985A (en) * | 1987-12-22 | 1989-06-29 | Konica Corp | Cleaning device for photosensitive body |
-
1991
- 1991-08-30 JP JP24687291A patent/JPH0561383A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60230171A (en) * | 1984-04-27 | 1985-11-15 | Casio Comput Co Ltd | Image forming device |
| JPH01164985A (en) * | 1987-12-22 | 1989-06-29 | Konica Corp | Cleaning device for photosensitive body |
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0706097A2 (en) | 1994-10-03 | 1996-04-10 | Canon Kabushiki Kaisha | Image forming method |
| US5576810A (en) * | 1994-10-03 | 1996-11-19 | Canon Kabushiki Kaisha | Image forming method |
| EP0712048A1 (en) | 1994-11-08 | 1996-05-15 | Canon Kabushiki Kaisha | Image forming method and image forming apparatus |
| US5731122A (en) * | 1994-11-08 | 1998-03-24 | Canon Kabushiki Kaisha | Image forming method and image forming apparatus |
| EP0713161A2 (en) | 1994-11-18 | 1996-05-22 | Canon Kabushiki Kaisha | Image forming apparatus |
| US5751405A (en) * | 1994-11-18 | 1998-05-12 | Canon Kabushiki Kaisha | Image forming apparatus |
| JPH08305074A (en) * | 1994-11-28 | 1996-11-22 | Canon Inc | Image forming method |
| US5753396A (en) * | 1994-11-28 | 1998-05-19 | Canon Kabushiki Kaisha | Image forming method |
| US5915150A (en) * | 1996-02-20 | 1999-06-22 | Canon Kabushiki Kaisha | Image forming method utilizing toner having inorganic particles and particles of a specific sphericity |
| US6013406A (en) * | 1997-03-11 | 2000-01-11 | Canon Kabushiki Kaisha | Toner for developing electrostatic images, and image-forming method |
| US5976755A (en) * | 1997-04-30 | 1999-11-02 | Canon Kabushiki Kaisha | Image forming method featuring a residual charge control property resulting from a selected toner formulation |
| US6285848B1 (en) | 1997-06-13 | 2001-09-04 | Canon Kabushiki Kaisha | Electrophotographic apparatus, image forming method, and process cartridge for developing an image with toner containing an external additive |
| US6077635A (en) * | 1997-06-18 | 2000-06-20 | Canon Kabushiki Kaisha | Toner, two-component developer and image forming method |
| US6610454B2 (en) | 1997-09-05 | 2003-08-26 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6026260A (en) * | 1997-10-21 | 2000-02-15 | Canon Kabushiki Kaisha | Electrophotographic apparatus, image forming method and process cartridge |
| US6214509B1 (en) | 1998-05-13 | 2001-04-10 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6157801A (en) * | 1998-06-11 | 2000-12-05 | Canon Kabushiki Kaisha | Magnetic particles for charging, charging member, charging device, process cartridge, and electrophotographic apparatus |
| US6438343B1 (en) | 1999-02-12 | 2002-08-20 | Canon Kabushiki Kaisha | Image forming apparatus |
| US6447969B1 (en) | 1999-06-02 | 2002-09-10 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6321059B1 (en) | 1999-09-30 | 2001-11-20 | Canon Kabushiki Kaisha | Image forming apparatus |
| US6635398B1 (en) | 1999-10-26 | 2003-10-21 | Canon Kabushiki Kaisha | Dry toner, dry toner production process, and image forming method |
| US6696211B2 (en) | 2000-02-21 | 2004-02-24 | Canon Kabushiki Kaisha | Developer, image-forming method, and process cartridge |
| US6596452B2 (en) | 2000-02-21 | 2003-07-22 | Canon Kabushiki Kaisha | Magnetic toner and image-forming method making use of the same |
| US6465144B2 (en) | 2000-03-08 | 2002-10-15 | Canon Kabushiki Kaisha | Magnetic toner, process for production thereof, and image forming method, apparatus and process cartridge using the toner |
| US6924076B2 (en) | 2001-08-20 | 2005-08-02 | Canon Kabushiki Kaisha | Developing assembly, process cartridge and image-forming method |
| US6873816B2 (en) | 2001-08-20 | 2005-03-29 | Canon Kabushiki Kaisha | Developing assembly, process cartridge and image-forming method |
| US6897001B2 (en) | 2001-09-28 | 2005-05-24 | Canon Kabushiki Kaisha | Toner and image forming method |
| US6829445B2 (en) | 2002-03-29 | 2004-12-07 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having a cleaning mechanism for cleaning a photosensitive member |
| US6879793B2 (en) | 2002-06-19 | 2005-04-12 | Canon Kabushiki Kaisha | Method for forming image |
| US7150953B2 (en) | 2002-09-12 | 2006-12-19 | Canon Kabushiki Kaisha | Developer |
| US6987939B2 (en) | 2002-10-02 | 2006-01-17 | Canon Kabushiki Kaisha | Image forming apparatus with two cleaning electric fields for transferring developer from a developer charging device onto an image bearing member |
| US7428395B2 (en) | 2005-03-21 | 2008-09-23 | Kabushiki Kaisha Toshiba | Image forming apparatus equipped with developing unit to make developing and simultaneous cleaning and image forming method |
| US7778573B2 (en) * | 2006-12-26 | 2010-08-17 | Ricoh Company, Ltd. | Image forming apparatus and process cartridge |
| KR100896357B1 (en) * | 2007-01-10 | 2009-05-08 | 가부시끼가이샤 도시바 | Image forming apparatus |
| US7929893B2 (en) | 2007-01-10 | 2011-04-19 | Kabushiki Kaisha Toshiba | Image forming apparatus comprising an intermediate transfer belt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0561383A (en) | Cleanerless image forming method | |
| US4145137A (en) | Electrophotographic reproducing machine blade cleaning apparatus | |
| JP3083907B2 (en) | Image forming device | |
| JPH08137204A (en) | Image forming device | |
| JP3002630B2 (en) | Electrophotographic recording device | |
| JPH08137203A (en) | Image forming device | |
| JP3423632B2 (en) | Image forming device | |
| JP3026051B2 (en) | Image forming device | |
| JPH0143307B2 (en) | ||
| JP3100852B2 (en) | Image forming device | |
| JP3030188B2 (en) | Image forming device | |
| JPH1138848A (en) | Cleaning device, process cartridge and image forming device | |
| JPH0545958A (en) | Electrophotographic recorder | |
| JPH1184827A (en) | Image forming device | |
| JP3242291B2 (en) | Electrophotographic recording device | |
| JPH05341643A (en) | Cleanerless image forming device | |
| JPH10213945A (en) | Image forming device and process cartridge | |
| JPH04264580A (en) | Image forming device | |
| JPH0451074A (en) | Electrophotographic device | |
| JP3040222B2 (en) | Image forming device | |
| JPH1031360A (en) | Image forming device | |
| JPH0734138B2 (en) | Image forming device | |
| JPH11109822A (en) | Image forming device | |
| JPH0736321A (en) | Electrophotographic device | |
| JPH06202431A (en) | Electrostatic charging device |