JPS59232379A - Cleaning device - Google Patents

Cleaning device

Info

Publication number
JPS59232379A
JPS59232379A JP10747383A JP10747383A JPS59232379A JP S59232379 A JPS59232379 A JP S59232379A JP 10747383 A JP10747383 A JP 10747383A JP 10747383 A JP10747383 A JP 10747383A JP S59232379 A JPS59232379 A JP S59232379A
Authority
JP
Japan
Prior art keywords
photosensitive cylinder
web
cylinder
photosensitive
press roll
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
Application number
JP10747383A
Other languages
Japanese (ja)
Inventor
Keisaku Shioda
潮田 景作
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP10747383A priority Critical patent/JPS59232379A/en
Publication of JPS59232379A publication Critical patent/JPS59232379A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To extend the life of a photosensitive cylinder and a cleaning blade by giving a means, which roughens the photosensitive cylinder in accordance with conditions, to a cleaning device of an image forming device provided with a blade cleaning device, a web cleaning device and a lubricant applying device. CONSTITUTION:A wed 2 is formed with a fine-quality paper layer 2a and an abrading layer 2b consisting of a resin and an abrasive, and the fine-quality paper layer 2a is brought into contact with a photosensitive cylinder 20 when the web 2 is placed between a press roll 5 and the photosensitive cylinder 20, and the abrading layer 2b is brought into contact with the photosensitive cylinder 20 when it is placed between the photosensitive cylinder 20 and a press roll 3. The photosensitive cylinder 20 is replaced, the surface of the new photosensitive cylinder 20 is roughned with fine flaws by the abrading layer 2b of the web 2 by the press roll 3. In this state, the web 2 is pressed to the photosensitive cylinder 20 to clean it, and to continue paper supply. When the number of the supplied paper reaches a prescribed value, an energized compression spring 13 is relaxed to release the press roll 3 which presses the abrading layer 2b, and the paper supply is continued in the state where only the press roll 5 acts.

Description

【発明の詳細な説明】 本発明は、複写機、レーザービームプリンター等の画像
形成装、置のクリーニング装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image forming apparatus such as a copying machine and a laser beam printer, and a cleaning apparatus for the apparatus.

従来クリーニング装置は第1図に示すように。A conventional cleaning device is shown in FIG.

感光シリンダ20の回転方向の上流より説明すると、感
光シリンダ20に圧接するよう固設されたクリーニング
ブレード8により掻き落されたトナーTはクリーニング
ブレード8を包んで設けられたダクト9中を流れる空気
流に吸われて搬出される。
To explain from the upstream side in the rotational direction of the photosensitive cylinder 20, the toner T scraped off by the cleaning blade 8 fixedly installed so as to be in pressure contact with the photosensitive cylinder 20 is transferred to an air flow flowing through a duct 9 provided surrounding the cleaning blade 8. It is sucked up and carried out.

次にクリーニングブレード8を通過した感光シリンダ2
0の表面は供給軸lより供給され圧接ローラ5にて押圧
されているウェブ11により、感光シリンダ進行方向と
反対方向に、クリーニングφ研磨され、クリーニングブ
レード8を通過したト芋−r、潤滑剤粉末7はウェブ1
1により補集されウェブ11は巻き取り軸4に巻き上げ
られる。
Next, the photosensitive cylinder 2 passed through the cleaning blade 8
The surface of 0 is cleaned and polished by the web 11 supplied from the supply shaft 1 and pressed by the pressure roller 5 in the direction opposite to the direction of travel of the photosensitive cylinder, and the potato-r and lubricant that have passed through the cleaning blade 8 are polished. Powder 7 is web 1
1 and the web 11 is wound onto the winding shaft 4.

押圧ローラ5を通過した感光シリンダ20の表面はテフ
ロン等の潤滑剤粉末7を図示しないホッパに固定され感
光シリンダ20に押圧されている塗布ブレード6により
塗布され、次の画像形成サイクルへ供される。
The surface of the photosensitive cylinder 20 that has passed the pressure roller 5 is coated with a lubricant powder 7 such as Teflon by a coating blade 6 that is fixed to a hopper (not shown) and pressed against the photosensitive cylinder 20, and is used for the next image forming cycle. .

この種の装置では塗布ブレード6及び感光シリンダ20
の長寿命化の為に感光シリンダ20上にテフロン粉末等
表面自由エネルギーの低い物質を塗布しブレード6.8
のめくれ、感光シリンダ20へのトナー融着等を防止す
る。また、余剰な潤滑剤を除去する為にウェブ11を感
光シリンダ20に押圧し送る。
This type of device includes a coating blade 6 and a photosensitive cylinder 20.
To prolong the life of the blade 6.8, a substance with low surface free energy such as Teflon powder is coated on the photosensitive cylinder 20.
This prevents the toner from turning over, fusing to the photosensitive cylinder 20, etc. Further, in order to remove excess lubricant, the web 11 is pressed and sent to the photosensitive cylinder 20.

この様な装置においては潤滑剤の塗布は不安定であって
例えば新感覚シリンダに交換した直後はブレードとドラ
ムとの摩擦抵抗が大きくブレードのくいこみが大きくな
る。
In such a device, the application of lubricant is unstable, and for example, immediately after replacing the cylinder with a new type cylinder, the frictional resistance between the blade and the drum is large and the blade becomes more likely to bite.

感光シリンダ20に対し、その使用開始後の通紙枚数と
テフロン塗布量との関係を測定結果を第2図に示した。
FIG. 2 shows the measurement results of the relationship between the number of sheets passed through the photosensitive cylinder 20 and the amount of Teflon applied after the start of use.

初期塗布量は非常に多くなっている。The initial coating amount is very large.

このように潤滑剤の塗布量が増加し、感光シリンダ20
の表面にこびりつき融着するという欠点があった。また
その結果としてクリーニング不良となり、ウェブ等にト
ナーが溜りトナー融着も発生しやすくなるという欠点が
あった。
In this way, the amount of lubricant applied increases, and the photosensitive cylinder 20
It has the disadvantage that it sticks to the surface and fuses. Moreover, as a result, cleaning becomes insufficient, toner accumulates on the web, etc., and toner fusion tends to occur.

本発明はと述の様に、画像形成装置におい−て新感覚シ
リンダ交換時の感光シリンダ表面への潤滑剤の融着、ト
ナー融着をなくし、感光シリンダ及びクリーニングブレ
ードの寿命を延ばすことの出来るクリーニング装置を提
供することを目的とする。
As described above, the present invention is capable of eliminating lubricant adhesion and toner adhesion to the photosensitive cylinder surface when replacing a new type of cylinder in an image forming apparatus, thereby extending the life of the photosensitive cylinder and cleaning blade. The purpose is to provide a cleaning device.

本発明は画像形成装置において、ブレードクリーニング
装置と像担持体に粉体を塗布する装置と像担持体上に押
圧して像担持体上の粉体な除去するウェブを持ち、かつ
像担持体の使用初期に像担持体表面を荒す手段を有する
ものである。
The present invention provides an image forming apparatus that includes a blade cleaning device, a device for applying powder to an image carrier, and a web that presses onto the image carrier to remove powder on the image carrier. It has means for roughening the surface of the image carrier at the initial stage of use.

以下本発明の実施例を図面により説明する。Embodiments of the present invention will be described below with reference to the drawings.

第3図は実施例を示す側面図である。従来例と相異する
ウェブの装置につき説明する。感光シリンダ20の表面
に対向して固設された図示しない箱体に感光シリンダ2
0に平行して複数の軸、ローラが回転自在に固定されて
いる。即ち供給軸lの下方にガイドローラ121があり
、その下方に1端を固設された圧縮ばね14の他端に係
止されて押圧ローラ5が感光シリンダ20の表面に押圧
されてあり、その少しト流の一ヒ方にガイドローラ12
2があり、はぼ同じ高さの上流にガイドローラ123が
あり、その下方に−°端を固設された圧縮ばね13に係
止されて押圧ローラ3が感光シリンダ20の表面に押圧
されてあり、その少し下流の上方にガイドローラ124
があり、前記の図示しない箱体のほぼ中央に巻き取り軸
4がある。
FIG. 3 is a side view showing the embodiment. A web device different from the conventional example will be explained. The photosensitive cylinder 2 is mounted in a box (not shown) fixed to face the surface of the photosensitive cylinder 20.
A plurality of shafts and rollers are rotatably fixed in parallel to 0. That is, there is a guide roller 121 below the supply shaft 1, one end of which is fixed to the other end of the compression spring 14, and the pressure roller 5 is pressed against the surface of the photosensitive cylinder 20. Guide roller 12 on one side of the flow
2, there is a guide roller 123 upstream at approximately the same height, and the pressure roller 3 is pressed against the surface of the photosensitive cylinder 20 by being locked by a compression spring 13 whose -° end is fixed below the guide roller 123. There is a guide roller 124 slightly downstream and above it.
There is a winding shaft 4 approximately in the center of the box (not shown).

ウェブ2が供給軸lに巻き込まれていて供給軸lの下流
側より供給され、ガイドローラ121の上流側、押圧ロ
ーラ5の下側、ガイドローラ122,123の上側、抑
圧ローラ3の下側、カイトローラ124の−E側、巻き
取り軸4の下側より巻き取られるよう張りめぐらされ、
ている。
The web 2 is wound around the supply shaft 1 and is supplied from the downstream side of the supply shaft 1, upstream of the guide roller 121, below the pressure roller 5, above the guide rollers 122 and 123, below the suppression roller 3, -E side of the kite roller 124, it is stretched so as to be wound up from the lower side of the winding shaft 4,
ing.

ウェブ2は第6図に示すように上質紙屑2aと樹脂と研
磨剤よりなる研磨層2bからなっていて、押圧ローラ5
と感光シリンダ20との間では第4図のように上質紙層
2aが感光シリンダ20に当接し、感光シリンダ20と
押圧ローラ3との間では第5図のように研磨層2bが感
光シリンダ20と当接するようなっている。
As shown in FIG. 6, the web 2 consists of high-quality paper waste 2a, an abrasive layer 2b made of resin and an abrasive, and a pressing roller 5.
Between the photosensitive cylinder 20 and the photosensitive cylinder 20, the high-quality paper layer 2a is in contact with the photosensitive cylinder 20, as shown in FIG. It comes into contact with.

新感覚シリンダ20に交換すると押圧ローラ3によりウ
ェブ2の研磨層2bで感光シリンダ20の表面に細い傷
をつける。この状態でウェブ2を圧接しクリーニングを
しながら通紙を続ける。通紙枚数がある規定枚数に達す
ると研磨層2bを圧接する押圧ローラ3は圧縮ばね13
の付勢を除いて解除され、抑圧ローラ5のみが作用する
状態で通紙が続行される。
When the new-sensation cylinder 20 is replaced, the pressure roller 3 makes fine scratches on the surface of the photosensitive cylinder 20 with the abrasive layer 2b of the web 2. In this state, the web 2 is pressed against the web 2 and the paper continues to be fed while being cleaned. The pressure roller 3 that presses against the polishing layer 2b when the number of sheets passed reaches a certain predetermined number is a compression spring 13.
The energization is removed and the sheet feeding continues with only the suppression roller 5 acting.

第7図は他の実施例を示す側面図である。従来例と相異
するワイヤブラツシローラにつき説明する。ブレードク
リーニング装置に続く下流側にワイヤブラッシローラ1
0を設ける。
FIG. 7 is a side view showing another embodiment. A wire brush roller that is different from the conventional example will be explained. Wire brush roller 1 on the downstream side following the blade cleaning device
Set 0.

第8図に示すようにワイヤブラツシローラ10は画像形
成装置の枠体に固定された軸受18に回動軸19が支持
され回動軸19には加圧解除レバー21の−・端が固定
され、加圧解除し/< −21の他端は図示しない軸受
でワイヤブラツシローラ10の両端に突出しているワイ
ヤブラツシローラ10に固定された軸10a。
As shown in FIG. 8, the wire brush roller 10 has a rotating shaft 19 supported by a bearing 18 fixed to the frame of the image forming apparatus, and the negative end of the pressure release lever 21 is fixed to the rotating shaft 19. The other end of the shaft 10a is fixed to the wire brush roller 10 with a bearing (not shown) protruding from both ends of the wire brush roller 10.

10bを回転自在に固定している。加圧解除レバー21
のワイヤプラツシローラ10側の端部の上面に一端を係
止し、他端を固設部分に係止した圧縮ばね17が設けら
れている。ワイヤプラツシローラ10に固定された軸J
 Oaに固定されたプーリ22に固設されている駆動モ
ー タ15の軸に固定されたプーリよりベルト16が弓
長設されている。
10b is rotatably fixed. Pressure release lever 21
A compression spring 17 is provided, one end of which is engaged with the upper surface of the end on the wire plastic roller 10 side, and the other end of which is engaged with a fixed portion. A shaft J fixed to the wire plastic roller 10
A belt 16 is provided in a bow-length manner from a pulley fixed to a shaft of a drive motor 15, which is fixed to a pulley 22 fixed to Oa.

画像形成装置の枠体に固定された枠24に固定された加
圧解除モータ25は歯車列23と軸接手26を介して回
動軸19に回転力を伝えるようになっている。
A pressure release motor 25 fixed to a frame 24 fixed to the frame of the image forming apparatus transmits rotational force to the rotating shaft 19 via a gear train 23 and a shaft joint 26.

所感光シリンダに交換するとワイヤブラツシローラlO
が感光シリンダ20の表面に圧縮ばね17の付勢により
圧接し、感光シリンダ20の表面を感光シリンダ20の
表面の進行方向とは逆方向に摺擦し、感光シリンダ20
の表面を荒しこの状態のまま通紙が行われる。通紙枚数
が規定枚数まで達するとワイヤブラツシローラ10は摺
擦することを解除され、第1図で説明した状態にかえり
、続行される。
When replacing the photosensitive cylinder, the wire brush roller lO
comes into pressure contact with the surface of the photosensitive cylinder 20 by the biasing force of the compression spring 17, and rubs the surface of the photosensitive cylinder 20 in a direction opposite to the direction in which the surface of the photosensitive cylinder 20 travels.
The surface is roughened and paper is passed in this state. When the number of sheets passed reaches a predetermined number, the wire brush roller 10 stops rubbing, returns to the state described in FIG. 1, and continues.

加圧解除モータ25を付勢すると圧縮ばね17の付勢力
に抗して歯車列23、軸接手26を介して回動軸19、
加圧解除し/<−21を矢印の方向に回動し、ワイヤブ
ラツシローラ10が感光シリンダ20の表面から離れた
位置で加圧解除モータ25にブレーキをかけモータ25
の付勢を断つことにより上記の状態になる。
When the pressure release motor 25 is energized, the rotation shaft 19 is moved through the gear train 23 and the shaft joint 26 against the biasing force of the compression spring 17.
Pressure release /<-21 is rotated in the direction of the arrow, and when the wire brush roller 10 is away from the surface of the photosensitive cylinder 20, the brake is applied to the pressure release motor 25.
The above state is achieved by cutting off the bias.

なお、軸接手26の代りにクラッチを備え、そのクラッ
チのモータ側にプーリを備え、そのプーリとプーリ22
の間にベルトを張設すれば十記りラ°ツチを断とし加圧
解除モータ25よりワイヤブラツシローラ10を駆動し
、ワイヤブラツシローラ10の感光シリンダ20摺擦の
解除はh記りラッチを接とし上記のような加圧解除モー
タ25としての作用をせしめれば、駆動モータ15は不
要となる。
Note that a clutch is provided instead of the shaft joint 26, and a pulley is provided on the motor side of the clutch, and the pulley and the pulley 22
If a belt is stretched between them, the ten-way latch is broken and the wire brush roller 10 is driven by the pressure release motor 25, and the sliding of the wire brush roller 10 against the photosensitive cylinder 20 is canceled as shown in h. If the latch is connected and the pressure release motor 25 is operated as described above, the drive motor 15 becomes unnecessary.

本発明は新品の感光シリンダに交換直後に感光シリンダ
表面を荒す許でなく、ブレードと感光シリンダとの接触
圧が高くなった時にも荒しを行うことが有効である。
In the present invention, it is effective not to roughen the surface of the photosensitive cylinder immediately after replacing it with a new photosensitive cylinder, but also to roughen the surface when the contact pressure between the blade and the photosensitive cylinder becomes high.

また荒すというのは静電式画像形成装置または画像記録
装置において、トナーの粒子径以下の細かい傷をつける
ことで、傷の深さiま0.5w〜3#L程度のものを云
う。
Further, "roughening" refers to making fine scratches smaller than the toner particle diameter in an electrostatic image forming apparatus or image recording apparatus, and refers to scratches with a depth i of about 0.5W to 3#L.

以上説明したようにブレードクリーニング装置とウェブ
、クリーニング装置とを併わせ持ち、かつ潤滑剤塗布装
置をもつ画像形成装置のクリーニング装置に感光シリン
ダを条件により荒す手段を伺与することにより所感光シ
リンダ交換時に発生しゃすい潤滑剤融着、トナー融着を
防止し画像形成を安定化する効果を得た。
As explained above, the photosensitive cylinder can be replaced by providing a means for roughening the photosensitive cylinder according to conditions to the cleaning device of the image forming apparatus, which has a blade cleaning device, a web cleaning device, and a lubricant application device. This has the effect of preventing lubricant fusion and toner fusion, which sometimes occur, and stabilizing image formation.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来例を示す側面図、第2図は感光シリンダに
付着するテフロン塗布量と通紙枚数との関係を表わす線
図、第3図は本発明の実施例を示す側面図、第4図、第
5図は押圧ローラとウェブの関係を示す断面図、第6図
はウェブの横断面図、第7図は本発明の他の実施例を示
す説明図、第8図はワイヤブラツシローラの斜視図であ
る。 2.11・・・ウェブ 2a・・・上質紙M 2b・・
・研磨層 3,5・・・押圧ローラ 6・・・塗布ブレ
ード 7・・・潤滑剤粉末 8・・・クリーニングブレ
ード 10・・・ワイヤブラツシローラ 15・・・駆
動モータ 17・・・圧縮ばね 20・・・感光シリン
ダ21・・・加圧解除レバー 25・・・加圧解除モー
タ。 特許出願人   キャノン株式会社 代理人   新 井 −部 第1図 違簀収牧 第3図
Fig. 1 is a side view showing a conventional example, Fig. 2 is a diagram showing the relationship between the amount of Teflon applied to the photosensitive cylinder and the number of sheets passed, and Fig. 3 is a side view showing an embodiment of the present invention. 4 and 5 are cross-sectional views showing the relationship between the pressing roller and the web, FIG. 6 is a cross-sectional view of the web, FIG. 7 is an explanatory view showing another embodiment of the present invention, and FIG. 8 is a wire brush. FIG. 2.11...Web 2a...High quality paper M 2b...
- Polishing layer 3, 5...Press roller 6...Applying blade 7...Lubricant powder 8...Cleaning blade 10...Wire brush roller 15...Drive motor 17...Compression spring 20... Photosensitive cylinder 21... Pressure release lever 25... Pressure release motor. Patent applicant Canon Co., Ltd. Agent Arai - Department Figure 1 Illegal grazing Figure 3

Claims (1)

【特許請求の範囲】[Claims] (1)0画像形成装置において、ブレードクリーニング
装置と像担持体に粉体を塗布する装置と′ 像担持体上
に押圧して像担持体上の粉体を除去するウェブをもち、
かつ像担持体表面を条件により荒す手段を有することを
特徴とするクリーニング装置。
(1) An image forming apparatus having a blade cleaning device, a device for applying powder to an image carrier, and a web that presses onto the image carrier to remove powder on the image carrier;
A cleaning device further comprising means for roughening the surface of the image carrier according to conditions.
JP10747383A 1983-06-15 1983-06-15 Cleaning device Pending JPS59232379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10747383A JPS59232379A (en) 1983-06-15 1983-06-15 Cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10747383A JPS59232379A (en) 1983-06-15 1983-06-15 Cleaning device

Publications (1)

Publication Number Publication Date
JPS59232379A true JPS59232379A (en) 1984-12-27

Family

ID=14460090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10747383A Pending JPS59232379A (en) 1983-06-15 1983-06-15 Cleaning device

Country Status (1)

Country Link
JP (1) JPS59232379A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179416A (en) * 1991-12-23 1993-01-12 Eastman Kodak Company Method and apparatus for cleaning and renewing an electrostatographic imaging surface
JPH06301317A (en) * 1993-03-22 1994-10-28 Moore Business Forms Inc Apparatus and method for cleaning of ionic-fixation printing press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179416A (en) * 1991-12-23 1993-01-12 Eastman Kodak Company Method and apparatus for cleaning and renewing an electrostatographic imaging surface
JPH06301317A (en) * 1993-03-22 1994-10-28 Moore Business Forms Inc Apparatus and method for cleaning of ionic-fixation printing press

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