JP3740181B2 - Charger cleaning tool - Google Patents

Charger cleaning tool Download PDF

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Publication number
JP3740181B2
JP3740181B2 JP04375695A JP4375695A JP3740181B2 JP 3740181 B2 JP3740181 B2 JP 3740181B2 JP 04375695 A JP04375695 A JP 04375695A JP 4375695 A JP4375695 A JP 4375695A JP 3740181 B2 JP3740181 B2 JP 3740181B2
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Japan
Prior art keywords
cleaning
image carrier
charging
charger
wire
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JP04375695A
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Japanese (ja)
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JPH08240971A (en
Inventor
健一 田村
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Canon Inc
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Canon Inc
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Priority to JP04375695A priority Critical patent/JP3740181B2/en
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Description

【0001】
【産業上の利用分野】
本発明は、複写機やプリンタ等の画像形成装置の帯電器に張設された帯電線を清掃するための清掃具に関する。
【0002】
【従来の技術】
例えば複写機においては、図5に示すように像担持体である感光体101の下方に転写帯電器104が配設され、該転写帯電器104には帯電線128が感光体101の長さ方向(図5の紙面垂直方向)に張設されている。
【0003】
而して、上記転写帯電器104は感光体101上に担持された未定着現像剤像を不図示の転写材上に転写させるが、帯電線128には異物や汚れが経時的に付着してその放電能力が低下するため、該帯電線128を定期的に清掃して転写帯電器104に高い帯電能力を確保しておく必要がある。
【0004】
そこで、図5に示すように転写帯電器104に清掃具130を設け、この清掃具130によって帯電線128を定期的に清掃することが従来から行われている。この清掃具130は、図6に詳細に示すように、帯電線128を左右両側から挟み込む清掃パッド134a,134bを有し、これを帯電線128の長さ方向(図5及び図6の紙面垂直方向)に沿って手動又は電動で移動させることによって帯電線128が清掃されていた。
【0005】
ところで、図5に示す従来の清掃具130にあっては、これを転写帯電器104から外すことなく帯電線128の交換を行うことができるようにするため、清掃パッド134a,134bはその合面(清掃面)S2が感光体101の対向面S1に対して垂直になるように配置されていた。
【0006】
【発明が解決しようとする課題】
しかしながら、清掃パッド134a,134bを上述のように配置すると、帯電線128の感光体101に対向する面(上面)を清掃パッド134a,134bによって完全には清掃し切れず、帯電線128の放電能力向上の点からは改善の余地があった。
【0007】
そこで、図7に示すように、一対の清掃パッド234a,234bをその合面(清掃面)S2が感光体201の対向面S1に対して平行になるよう配置する構成が考えられるが、この構成によれば一方のパッド234aが感光体201と帯電線228の間に位置することとなるため、帯電線228を交換する際の作業性が著しく悪化するという問題が発生する。
【0008】
本発明は上記問題に鑑みてなされたもので、その目的とする処は、帯電線を作業性良く交換することができるとともに、帯電線を確実に清掃してその放電能力の更なる向上を図ることができる帯電器の清掃具を提供することにある。
【0009】
上記目的を達成するため、像担持体に対向する面が開口する帯電器の帯電線を、一対の清掃パッドでその合面が前記像担持体の対向面と平行になるように挟んで帯電線に沿って移動することによって帯電線を清掃する帯電器の清掃具において、
前記清掃具は、
前記帯電器の反開口側で支持されて像担持体の対向面に対して垂直方向に立設し、帯電線に沿って移動する支柱と、
前記支柱に、像担持体の対向面に対して垂直方向に移動自在に支持されているパッド支持体とを備えるとともに、
前記パッド支持体は、
帯電線を挟んで像担持体側とは反対側の清掃パッドを、前記像担持体の対向面に平行な面を帯電線に向けるよう支持するとともに、
像担持体側の清掃パッドを、帯電線を清掃する場合の合面を形成する位置と、帯電線を交換する場合の合面を形成しない位置との間を、帯電線の軸直角平面内で回動可能とし、
パッド支持体を支柱から取り外すことなく帯電線を交換可能に構成したことを特徴とする。
【0011】
【作用】
請求項1記載の発明によれば、一対の清掃パッドはその合面(清掃面)が像担持体の対向面と平行になるように配置されるため、帯電線の像担持体に対向する面(像担持体に対する放電に最も寄与する面)が清掃パッドによって確実に清掃され、該帯電線の放電能力がより一層高められる。又、像担持体側の一方の清掃パッドを、帯電線を清掃する場合の合面を形成する位置と、帯電線を交換する場合の合面を形成しない位置との間を、帯電線の軸直角平面内で回動可能とし、パッド支持体を支柱から取り外すことなく帯電線を交換可能に構成したため、帯電線を作業性良く交換することが可能となる。
【0013】
【実施例】
以下に本発明の一実施例を添付図面に基づいて説明する。
【0014】
図1は本発明に係る清掃具を備える転写帯電器及び感光体の断面図、図2は本発明に係る清掃具の清掃時の状態を示す断面図、図3は同清掃具の帯電線交換時の状態を示す断面図、図4は複写機の縦断面図である。
【0015】
先ず、図4に基づいて複写機の概略構成を説明する。
【0016】
複写機の本体10内には像担持体である円筒状の感光体1が回転自在に収納されており、該感光体1の周囲には一次帯電器2、現像装置3、転写帯電器4、分離帯電器5、クリーナ6等のプロセス機器が配されている。そして、現像装置3の上方には、現像剤であるトナーを補給するためのホッパー7が設置されている。
【0017】
又、装置本体10の一側(図4の右側)には、複数枚の転写材Pを積層収容して成る給紙カセット11,12,13が上下3段に亘って設けられており、給紙カセット11の上方には手差し用の給紙トレイ14が設けられている。
【0018】
而して、各給紙カセット11,12,13或は手差し用の給紙トレイ14から供給される転写材Pは装置本体10内を図4の右方から左方に向かって搬送されるが、その搬送経路にはレジストローラ15、ベルト搬送装置16、定着前ガイド17、定着装置18及び排出ローラ19等が配されている。
【0019】
他方、装置本体10内の上部には、光学系を構成するランプ20、反射ミラー21〜24、光学系レンズ25等が配されている。
【0020】
而して、装置本体10の上面に設けられた原稿載置台26上にセットされた不図示の原稿は光学系によって読み取られ、原稿に対応する光像が図示矢印方向に回転する感光体1上に露光されると、前記一次帯電器2によってその表面が帯電された感光体1上には原稿像に対応する静電潜像が形成され、この静電潜像は前記現像装置5によって現像されてトナー像として顕画化される。
【0021】
一方、例えば給紙カセット11からは転写材Pが供給され、該転写材Pは前記レジストローラ15によってタイミングを合わされて感光体1と転写帯電器4との間の転写部に送られ、感光体1上に形成された前記トナー像の転写を受け、その後、前記分離帯電器5の作用によって感光体1から分離される。
【0022】
そして、感光体1から分離された転写材Pは、前記ベルト搬送装置16によって前記定着装置18に送られ、該定着装置18によってトナー像の定着を受けた後、前記排出ローラ19によって装置本体10外に排出される。
【0023】
ここで、本発明に係る清掃具30を図1乃至図3に基づいて説明する。
【0024】
前記転写帯電器4は、図1に示すように、その上面(感光体1に対向する面)が開口するチャンネル状のシールド板27に帯電線28を感光体1の軸方向(図1の紙面垂直方向)に張設して構成され、シールド板27の下部にはガイド溝29が感光体1の軸方向に長く形成されている。尚、シールド板27の底面には、感光体1の軸方向に長い切欠溝27aが形成されている。
【0025】
而して、上記転写帯電器4のシールド板27で囲まれる空間内には、本発明に係る清掃具30が帯電線28に沿って(つまり、感光体1の軸方向に)移動自在に設けられている。この清掃具30は、シールド板27の下部に形成された前記ガイド溝29に摺動自在に嵌合するスライドベース31を有しており、該スライドベース31上には支柱32が立設されており、この支柱32はシールド板27の底面に形成された前記切欠溝27aを貫通してシールド板27で囲まれる空間内に臨んでいる。そして、この支柱32にはパッド支持体33が上下動自在(感光体1の対向面S1に対して垂直方向に移動自在)に支持されている。
【0026】
上記パッド支持体33は樹脂にて一体成形され、これは、前記支柱32に上下動自在に嵌合する筒状のガイド部33aと、該ガイド部33aから一体に延出する支持アーム33bと、ガイド部33aから水平に延出した後にU字状に湾曲する支持アーム33cを有しており、一方の支持アーム33bは屈曲自在な弾性部33b−1を中心として上下方向(帯電線28の軸直角平面内で図3の矢印方向)に回動自在に構成され、その先部には係合溝33b−2が形成されている。
【0027】
又、他方の支持アーム33cは、ガイド部33aから水平に延出する水平部33c−1とU字状に成形された係合部33c−2とで構成されており、係合部33c−2の先部には鍵状の係合突起33c−3が形成されている。そして、一方の支持アーム33bの前記弾性部33b−1に近い部分には清掃パッド34aが取り付けられており、他方の支持アーム33cの水平部33c−1には同様の清掃パッド34bが取り付けられている。
【0028】
ところで、通常の状態(つまり、帯電線28を交換するとき以外の状態)においては、清掃具30の支持アーム33bは図1及び図2に示すように弾性部33b−1を中心に略直角に折り曲げられ、その先部には他方の支持アーム33cの係合突起33c−3が係合して図示状態に保たれており、このとき、帯電線28両清掃パッド34a,34bによって上下から挟み込まれており、両清掃パッド34a,34bの合面(清掃面)S2は図1に示すように感光体1の対向面S1に対して平行に保たれている。尚、このとき、パッド支持体33は帯電線28によって支持されている。
【0029】
而して、帯電線28を清掃するとき以外の通常状態においては、清掃具30は図1に示す状態で転写帯電器4の軸方向一端で待機しており、帯電線28の清掃が必要な時点で該清掃具30は手動で又は電動モータ等によって自動的に帯電線28に沿って移動せしめられ、帯電線28はこれを上下方向から挟み込むパッド34a,34bによって清掃され、これに付着したトナー等の異物や汚れが除去される。
【0030】
以上のように、本実施例においては、一対の清掃パッド34a,34bはその合面(清掃面)S2が感光体1の対向面S1と平行になるように配置されるため、帯電線28の感光体1に対向する上面(感光体1に対する放電に最も寄与する面)が清掃パッド34a,34bによって確実に清掃され、該帯電線28の放電能力がより一層高められる。
【0031】
ところで、帯電線28を交換する場合には、清掃具30の支持アーム33の係合突起33c−3との係合を解除した後、該支持アーム33bを弾性部33b−1を中心として略90°回動させてこれを図3に示すように略垂直状態に保てば、これに取り付けられた一方の清掃パッド34aが帯電線28から離れて帯電線28の交換作業を阻害しない位置に退避するため、帯電線28を作業性良く交換することが可能となる。そして、帯電線28を新しいものと交換した後は、支持アーム33bを弾性部33b−1を中心として元の方向に略90°回動させてこれを係合突起33c−3に係合せしめれば、清掃具30は再び図1及び図2に示す状態に復帰し、該清掃具30を帯電線28の清掃に供することができる。
【0032】
又、本実施例によれば、パッド支持体33は支柱32によって上下動自在(感光体1の対向面S1に対して垂直方向に移動自在)に支持され、従って、清掃パッド34a,34bも同様に上下動自在に支持されているため、該清掃パッド34a,34bは帯電線28を常に確実に挟むこととなり、帯電線28はその全周が完全に清掃されてその放電能力が一層高められる。
【0033】
尚、以上は清掃具30を転写帯電器4に設けた例について述べたが、同様の清掃具は分離帯電器5にも設けられている。
【0034】
【発明の効果】
以上の説明で明らかなように、請求項1記載の発明によれば、一対の清掃パッドはその合面(清掃面)が像担持体の対向面と平行になるように配置されるため、帯電線の像担持体に対向する面(像担持体に対する放電に最も寄与する面)が清掃パッドによって確実に清掃され、該帯電線の放電能力がより一層高められる。又、像担持体側の一方の清掃パッドを、帯電線を清掃する場合の合面を形成する位置と、帯電線を交換する場合の合面を形成しない位置との間を、帯電線の軸直角平面内で回動可能とし、パッド支持体を支柱から取り外すことなく帯電線を交換可能に構成したため、帯電線を作業性良く交換することが可能となるという効果が得られる。
【図面の簡単な説明】
【図1】本発明に係る清掃具を備える転写帯電器及び感光体の断面図である。
【図2】本発明に係る清掃具の清掃時の状態を示す断面図である。
【図3】本発明に係る清掃具の帯電線交換時の状態を示す断面図である。
【図4】複写機の縦断面図である。
【図5】従来の清掃具を備える転写帯電器及び感光体の断面図である。
【図6】従来の清掃具の断面図である。
【図7】従来の清掃具を備える転写帯電器及び感光体の断面図である。
【符号の説明】
1 感光体(像担持体)
4 転写帯電器(帯電器)
5 分離帯電器(帯電器)
28 帯電線
30 清掃具
34a,34b 清掃パッド
S1 感光体の対向面
S2 清掃パッドの合面
[0001]
[Industrial application fields]
The present invention relates to a cleaning tool for cleaning a charged wire stretched on a charger of an image forming apparatus such as a copying machine or a printer.
[0002]
[Prior art]
For example, in a copying machine, as shown in FIG. 5, a transfer charger 104 is disposed below a photoconductor 101 that is an image carrier, and a charging line 128 is provided in the transfer charger 104 in the length direction of the photoconductor 101. It is stretched in the direction perpendicular to the paper surface of FIG.
[0003]
Thus, the transfer charger 104 transfers the unfixed developer image carried on the photosensitive member 101 onto a transfer material (not shown), but foreign matter and dirt adhere to the charging line 128 over time. Since the discharge capability is reduced, it is necessary to periodically clean the charging line 128 to ensure a high charging capability in the transfer charger 104.
[0004]
Therefore, as shown in FIG. 5, a cleaning tool 130 is provided in the transfer charger 104, and the charging wire 128 is regularly cleaned by the cleaning tool 130. As shown in detail in FIG. 6, the cleaning tool 130 has cleaning pads 134 a and 134 b that sandwich the charging wire 128 from both the left and right sides, and this is arranged in the length direction of the charging wire 128 (perpendicular to the paper surface in FIGS. 5 and 6). The charged wire 128 has been cleaned by moving it manually or electrically along the direction.
[0005]
By the way, in the conventional cleaning tool 130 shown in FIG. 5, the cleaning pads 134a and 134b are formed on the mating surface so that the charging wire 128 can be exchanged without removing it from the transfer charger 104. (Cleaning surface) S <b> 2 is arranged to be perpendicular to the facing surface S <b> 1 of the photoreceptor 101.
[0006]
[Problems to be solved by the invention]
However, when the cleaning pads 134a and 134b are arranged as described above, the surface (upper surface) of the charging line 128 facing the photosensitive member 101 cannot be completely cleaned by the cleaning pads 134a and 134b, and the discharging capability of the charging line 128 is not achieved. There was room for improvement in terms of improvement.
[0007]
Therefore, as shown in FIG. 7, a configuration in which the pair of cleaning pads 234a and 234b are arranged so that their mating surfaces (cleaning surfaces) S2 are parallel to the opposing surface S1 of the photosensitive member 201 is conceivable. Therefore, one pad 234a is positioned between the photosensitive member 201 and the charging wire 228, and therefore, the problem that workability when replacing the charging wire 228 is remarkably deteriorated occurs.
[0008]
The present invention has been made in view of the above problems, and the object of the present invention is that the charged wire can be exchanged with good workability, and the charged wire is reliably cleaned to further improve its discharge capability. It is an object of the present invention to provide a cleaning device for a charger.
[0009]
In order to achieve the above object, the charging line of the charger having an opening facing the image carrier is sandwiched between a pair of cleaning pads so that the mating surface is parallel to the opposing surface of the image carrier. In the charger cleaning tool that cleans the charging line by moving along the
The cleaning tool is:
A support column which is supported on the opposite side of the charger and is erected in a direction perpendicular to the opposing surface of the image carrier, and moves along a charging line;
The support is provided with a pad support that is movably supported in a direction perpendicular to the opposing surface of the image carrier,
The pad support is
While supporting the cleaning pad opposite to the image carrier side across the charging line so that the surface parallel to the opposing surface of the image carrier faces the charging line,
The cleaning pad on the image carrier side is rotated within the plane perpendicular to the axis of the charging wire between the position where the mating surface is formed when cleaning the charging wire and the position where the mating surface is not formed when replacing the charging wire. Moveable ,
The present invention is characterized in that the charging wire can be replaced without removing the pad support from the support column .
[0011]
[Action]
According to the first aspect of the present invention, since the pair of cleaning pads are arranged so that their mating surfaces (cleaning surfaces) are parallel to the opposing surface of the image carrier, the surfaces of the charging lines that oppose the image carrier. The surface that contributes most to the discharge with respect to the image bearing member is reliably cleaned by the cleaning pad, and the discharge capacity of the charging line is further enhanced. Also, one of the cleaning pads on the side of the image carrier is positioned between the position where the mating surface is formed when cleaning the charging wire and the position where the mating surface is not formed when replacing the charging wire. Since it is configured such that it can be rotated in a plane and the charged wire can be replaced without removing the pad support from the column, the charged wire can be replaced with good workability.
[0013]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
[0014]
FIG. 1 is a cross-sectional view of a transfer charger and a photoconductor provided with a cleaning tool according to the present invention, FIG. 2 is a cross-sectional view showing a cleaning state of the cleaning tool according to the present invention, and FIG. FIG. 4 is a longitudinal sectional view of the copying machine.
[0015]
First, a schematic configuration of the copying machine will be described with reference to FIG.
[0016]
A cylindrical photosensitive member 1 as an image carrier is rotatably accommodated in a main body 10 of the copying machine. Around the photosensitive member 1, a primary charger 2, a developing device 3, a transfer charger 4, Process devices such as a separation charger 5 and a cleaner 6 are arranged. A hopper 7 for replenishing toner as a developer is installed above the developing device 3.
[0017]
Further, on one side of the apparatus main body 10 (right side in FIG. 4), paper feed cassettes 11, 12, and 13 each including a plurality of transfer materials P stacked and accommodated are provided in three upper and lower stages. A manual feed tray 14 is provided above the paper cassette 11.
[0018]
Thus, the transfer material P supplied from each of the paper feed cassettes 11, 12, 13 or the manual paper feed tray 14 is conveyed from the right side to the left side in FIG. In the conveying path, a registration roller 15, a belt conveying device 16, a pre-fixing guide 17, a fixing device 18, a discharge roller 19, and the like are arranged.
[0019]
On the other hand, the lamp 20, the reflection mirrors 21 to 24, the optical system lens 25, and the like constituting the optical system are arranged in the upper part of the apparatus main body 10.
[0020]
Thus, a document (not shown) set on a document table 26 provided on the upper surface of the apparatus main body 10 is read by the optical system, and a light image corresponding to the document rotates on the photosensitive member 1 rotating in the direction of the arrow shown in the drawing. Then, an electrostatic latent image corresponding to the original image is formed on the photoreceptor 1 whose surface is charged by the primary charger 2, and this electrostatic latent image is developed by the developing device 5. To be visualized as a toner image.
[0021]
On the other hand, for example, a transfer material P is supplied from the paper feed cassette 11, and the transfer material P is sent to a transfer portion between the photosensitive member 1 and the transfer charger 4 by the registration roller 15 at the timing. The toner image formed on 1 is transferred , and thereafter separated from the photoreceptor 1 by the action of the separation charger 5.
[0022]
Then, the transfer material P separated from the photoreceptor 1 is sent to the fixing device 18 by the belt conveying device 16, and after fixing the toner image by the fixing device 18, the apparatus main body 10 is discharged by the discharge roller 19. Discharged outside.
[0023]
Here, the cleaning tool 30 which concerns on this invention is demonstrated based on FIG. 1 thru | or FIG.
[0024]
As shown in FIG. 1, the transfer charger 4 is connected to a channel-shaped shield plate 27 whose upper surface (the surface facing the photoconductor 1) is opened, and a charging wire 28 is placed in the axial direction of the photoconductor 1 (the paper surface of FIG. 1). The guide groove 29 is formed in the lower part of the shield plate 27 so as to extend in the axial direction of the photosensitive member 1. A notch groove 27 a that is long in the axial direction of the photoreceptor 1 is formed on the bottom surface of the shield plate 27.
[0025]
Thus, in the space surrounded by the shield plate 27 of the transfer charger 4, the cleaning tool 30 according to the present invention is provided movably along the charging line 28 (that is, in the axial direction of the photoreceptor 1). It has been. The cleaning tool 30 has a slide base 31 slidably fitted in the guide groove 29 formed in the lower part of the shield plate 27, and a column 32 is erected on the slide base 31. The support column 32 passes through the notch groove 27 a formed on the bottom surface of the shield plate 27 and faces a space surrounded by the shield plate 27. A pad support 33 is supported on the support column 32 so as to be movable up and down (movable in a direction perpendicular to the opposing surface S1 of the photoreceptor 1).
[0026]
The pad support 33 is integrally formed of resin, which includes a cylindrical guide portion 33a that is fitted to the support column 32 so as to be movable up and down, and a support arm 33b that extends integrally from the guide portion 33a. A support arm 33c that extends horizontally from the guide portion 33a and then bends in a U-shape is provided, and one support arm 33b is formed in the vertical direction (the axis of the charging line 28) about the bendable elastic portion 33b-1. It is configured to be rotatable in a right-angle plane in the direction of the arrow in FIG. 3, and an engagement groove 33b-2 is formed at the tip thereof.
[0027]
The other support arm 33c is composed of a horizontal portion 33c-1 extending horizontally from the guide portion 33a and an engaging portion 33c-2 formed in a U-shape, and the engaging portion 33c-2. A key-like engagement protrusion 33c-3 is formed at the front end of the. A cleaning pad 34a is attached to a portion of one support arm 33b close to the elastic portion 33b-1, and a similar cleaning pad 34b is attached to the horizontal portion 33c-1 of the other support arm 33c. Yes.
[0028]
By the way, in a normal state (that is, a state other than when the charged wire 28 is replaced), the support arm 33b of the cleaning tool 30 is substantially perpendicular to the elastic portion 33b-1 as shown in FIGS. The engagement protrusion 33c-3 of the other support arm 33c is engaged with the tip of the other support arm 33c and kept in the state shown in the figure. At this time, the charging line 28 is sandwiched from above and below by both cleaning pads 34a and 34b. The mating surface (cleaning surface) S2 of both the cleaning pads 34a and 34b is kept parallel to the facing surface S1 of the photoreceptor 1 as shown in FIG. At this time, the pad support 33 is supported by the charging wire 28.
[0029]
Thus, in a normal state other than when the charging wire 28 is cleaned, the cleaning tool 30 stands by at one end in the axial direction of the transfer charger 4 in the state shown in FIG. 1, and the charging wire 28 needs to be cleaned. At this time, the cleaning tool 30 is moved along the charging line 28 manually or automatically by an electric motor or the like, and the charging line 28 is cleaned by the pads 34a and 34b sandwiching the charging line 28 from above and below, and the toner adhered thereto. Foreign matter and dirt such as are removed.
[0030]
As described above, in the present embodiment, the pair of cleaning pads 34a and 34b are arranged so that the mating surface (cleaning surface) S2 thereof is parallel to the opposing surface S1 of the photosensitive member 1, and therefore the charging line 28 The upper surface (the surface that contributes most to the discharge to the photosensitive member 1) facing the photosensitive member 1 is reliably cleaned by the cleaning pads 34a and 34b, and the discharging ability of the charging line 28 is further enhanced.
[0031]
By the way, when the charging wire 28 is replaced, after the engagement of the support arm 33 b of the cleaning tool 30 with the engagement protrusion 33 c-3 is released, the support arm 33 b is substantially centered around the elastic portion 33 b -1. If it is rotated by 90 ° and kept in a substantially vertical state as shown in FIG. 3, one cleaning pad 34a attached thereto is moved away from the charging wire 28 and does not hinder the replacement operation of the charging wire 28. Since it is retracted, the charged wire 28 can be replaced with good workability. After replacing the charging wire 28 with a new one, the support arm 33b can be rotated about 90 ° in the original direction around the elastic portion 33b-1 to engage it with the engaging protrusion 33c-3. In this case, the cleaning tool 30 returns to the state shown in FIGS. 1 and 2 again, and the cleaning tool 30 can be used for cleaning the charging wire 28.
[0032]
Further, according to the present embodiment, the pad support 33 is supported by the support column 32 so as to be movable up and down (movable in the vertical direction with respect to the opposing surface S1 of the photosensitive member 1). Therefore, the cleaning pads 34a and 34b always sandwich the charged wire 28 reliably, and the entire circumference of the charged wire 28 is completely cleaned, so that the discharge capacity is further enhanced.
[0033]
Although the example in which the cleaning tool 30 is provided in the transfer charger 4 has been described above, a similar cleaning tool is also provided in the separation charger 5.
[0034]
【The invention's effect】
As is apparent from the above description, according to the first aspect of the present invention, the pair of cleaning pads are arranged so that their mating surfaces (cleaning surfaces) are parallel to the opposing surface of the image carrier. The surface of the line that faces the image carrier (the surface that contributes most to the discharge of the image carrier) is reliably cleaned by the cleaning pad, and the discharge capacity of the charged wire is further enhanced. Also, one of the cleaning pads on the image carrier side is perpendicular to the axis of the charging line between the position where the mating surface is formed when cleaning the charging wire and the position where the mating surface is not formed when replacing the charging wire. Since the structure can be rotated in a plane and the charged wire can be exchanged without removing the pad support from the support column, the effect that the charged wire can be exchanged with good workability can be obtained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a transfer charger and a photoreceptor provided with a cleaning tool according to the present invention.
FIG. 2 is a cross-sectional view illustrating a cleaning tool according to the present invention during cleaning.
FIG. 3 is a cross-sectional view showing the state of the cleaning tool according to the present invention when the charged wire is replaced.
FIG. 4 is a longitudinal sectional view of a copying machine.
FIG. 5 is a cross-sectional view of a transfer charger and a photoreceptor including a conventional cleaning tool.
FIG. 6 is a cross-sectional view of a conventional cleaning tool.
FIG. 7 is a cross-sectional view of a transfer charger and a photoreceptor including a conventional cleaning tool.
[Explanation of symbols]
1 Photoconductor (image carrier)
4 Transfer charger (charger)
5 Separation charger (charger)
28 Charging wire 30 Cleaning tool 34a, 34b Cleaning pad S1 Photosensitive member facing surface S2 Cleaning pad mating surface

Claims (1)

像担持体に対向する面が開口する帯電器の帯電線を、一対の清掃パッドでその合面が前記像担持体の対向面と平行になるように挟んで帯電線に沿って移動することによって帯電線を清掃する帯電器の清掃具において、
前記清掃具は、
前記帯電器の反開口側で支持されて像担持体の対向面に対して垂直方向に立設し、帯電線に沿って移動する支柱と、
前記支柱に、像担持体の対向面に対して垂直方向に移動自在に支持されているパッド支持体とを備えるとともに、
前記パッド支持体は、
帯電線を挟んで像担持体側とは反対側の清掃パッドを、前記像担持体の対向面に平行な面を帯電線に向けるよう支持するとともに、
像担持体側の清掃パッドを、帯電線を清掃する場合の合面を形成する位置と、帯電線を交換する場合の合面を形成しない位置との間を、帯電線の軸直角平面内で回動可能とし、
パッド支持体を支柱から取り外すことなく帯電線を交換可能に構成したことを特徴とする帯電器の清掃具。
By moving the charging line of the charger whose surface facing the image carrier opens with a pair of cleaning pads so that the mating surface is parallel to the opposing surface of the image carrier and moving along the charging line In the charger cleaning tool that cleans the charged wire,
The cleaning tool is:
A support column which is supported on the opposite side of the charger and is erected in a direction perpendicular to the opposing surface of the image carrier, and moves along a charging line;
The support is provided with a pad support that is movably supported in a direction perpendicular to the opposing surface of the image carrier,
The pad support is
While supporting the cleaning pad opposite to the image carrier side across the charging line so that the surface parallel to the opposing surface of the image carrier faces the charging line,
The cleaning pad on the image carrier side is rotated within the plane perpendicular to the axis of the charging wire between the position where the mating surface is formed when cleaning the charging wire and the position where the mating surface is not formed when replacing the charging wire. Moveable ,
A cleaning device for a charger, wherein the charging wire can be replaced without removing the pad support from the support .
JP04375695A 1995-03-03 1995-03-03 Charger cleaning tool Expired - Fee Related JP3740181B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04375695A JP3740181B2 (en) 1995-03-03 1995-03-03 Charger cleaning tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04375695A JP3740181B2 (en) 1995-03-03 1995-03-03 Charger cleaning tool

Publications (2)

Publication Number Publication Date
JPH08240971A JPH08240971A (en) 1996-09-17
JP3740181B2 true JP3740181B2 (en) 2006-02-01

Family

ID=12672615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04375695A Expired - Fee Related JP3740181B2 (en) 1995-03-03 1995-03-03 Charger cleaning tool

Country Status (1)

Country Link
JP (1) JP3740181B2 (en)

Also Published As

Publication number Publication date
JPH08240971A (en) 1996-09-17

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