JPH0131191B2 - - Google Patents
Info
- Publication number
- JPH0131191B2 JPH0131191B2 JP14181980A JP14181980A JPH0131191B2 JP H0131191 B2 JPH0131191 B2 JP H0131191B2 JP 14181980 A JP14181980 A JP 14181980A JP 14181980 A JP14181980 A JP 14181980A JP H0131191 B2 JPH0131191 B2 JP H0131191B2
- Authority
- JP
- Japan
- Prior art keywords
- fur brush
- blower
- toner
- air flow
- 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.)
- Expired
Links
- 238000004140 cleaning Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 13
- 108091008695 photoreceptors Proteins 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims 1
- 238000012546 transfer Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
- G03G21/0035—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a brush; Details of cleaning brushes, e.g. fibre density
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/0005—Cleaning of residual toner
Description
【発明の詳細な説明】
本発明は電子写真複写装置等において感光体表
面上に残存するトナーを清掃するフアーブラシク
リーニング技術に関するもので、特に、フアーブ
ラシより所定方向に空気流を構成する為にブロワ
を設けた場合のフアーブラシクリーニングの駆動
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fur brush cleaning technique for cleaning toner remaining on the surface of a photoreceptor in an electrophotographic copying apparatus, etc., and in particular, the present invention relates to a fur brush cleaning technique for cleaning toner remaining on the surface of a photoreceptor in an electrophotographic copying apparatus, etc. The present invention relates to a driving method for fur brush cleaning when a fur brush cleaning is provided.
電子写真複写装置等では感光体表面上に形成さ
れたトナー像を転写材に転写後、感光体表面上に
残存するトナーを清掃する為に一手段としてフア
ーブラシクリーニング装置を使用する。この場合
に、フアーブラシにより感光体表面上の残存トナ
ーは掻き取られ、更に掻き取られたトナーは空気
中に浮遊され、ブロワによる空気流に乗つてフイ
ルターに回収される。然しながら、従来ブロワの
駆動に関しては殆んど注意が払われておらず、一
般的に、フアーブラシの回転開始と共に駆動を開
始し、フアーブラシの回転停止と共に駆動を停止
する構成であるか、又はフアーブラシの回転状態
と無関係に常時作動される構成であつた。そし
て、この様な従来技術では、周辺部へのトナーの
飛散、経路途中でのトナーの落下による堆積、電
力浪費等の問題があつた。 In electrophotographic copying machines and the like, a fur brush cleaning device is used as a means for cleaning toner remaining on the surface of the photoreceptor after the toner image formed on the surface of the photoreceptor is transferred to a transfer material. In this case, the residual toner on the surface of the photoreceptor is scraped off by the fur brush, and the scraped toner is suspended in the air, carried by the air flow from the blower, and collected by the filter. However, little attention has been paid to the drive of the blower in the past, and generally the blower is configured to start driving when the fur brush starts rotating and stop driving when the fur brush stops rotating, or to stop driving when the fur brush stops rotating. It was configured to operate at all times regardless of the rotational state. Such conventional techniques have problems such as toner scattering to the peripheral areas, toner accumulation due to toner falling during the route, and power consumption.
本発明は上述の如き従来技術の欠点を解消し、
フアーブラシによるトナーの飛散を防止すると共
にフイルターの回収効率を上げ、電力消費を減少
可能としたフアーブラシクリーニングの駆動方法
を提供することを目的とする。本発明は、感光体
表面上に付着するトナーをフアーブラシにより清
掃し、ブロワにより前記フアーブラシから所定方
向に空気流を流してトナーを回収するフアーブラ
シクリーニング方法において、ブロワの駆動開始
後所定時間経過後にフアーブラシの駆動を開始す
ることを特徴とする。更に、本発明の別の特徴と
しては、感光体表面上に付着するトナーをフアー
ブラシにより清掃し、ブロワにより前記フアーブ
ラシから所定方向に空気流を形成してトナーを回
収するフアーブラシクリーニング方法において、
フアーブラシの駆動停止後所定時間経過後にブロ
ワの駆動を停止する点である。 The present invention overcomes the drawbacks of the prior art as described above,
An object of the present invention is to provide a fur brush cleaning driving method that prevents toner from scattering by the fur brush, increases filter collection efficiency, and reduces power consumption. The present invention provides a fur brush cleaning method in which toner adhering to the surface of a photoreceptor is cleaned with a fur brush, and a blower collects the toner by sending an air flow from the fur brush in a predetermined direction, after a predetermined period of time has elapsed after the start of driving the blower. It is characterized by starting the driving of the fur brush. Furthermore, another feature of the present invention is a fur brush cleaning method in which the toner adhering to the surface of the photoreceptor is cleaned by a fur brush, and the toner is collected by forming an air flow in a predetermined direction from the fur brush with a blower.
The point is that the drive of the blower is stopped after a predetermined period of time has elapsed after the drive of the fur brush was stopped.
以下、図面を参考に本発明の具体的実施例に付
き説明する。第１図はブロワを有するフアーブラ
シクリーニング装置を設けた電子写真複写装置の
概略図である。即ち、第１図において、感光ドラ
ム１が矢印方向に回転自在に設けられており、感
光ドラム１の周辺にはその回転方向に従い、帯電
装置２、露光装置３、現像装置４、転写分離装置
５、除電装置６、及びフアーブラシクリーニング
装置７が配設されている。従つて、感光ドラムの
回転に伴ない、感光ドラム１の表面は帯電装置２
によつて一様に帯電され、露光装置３により原稿
像が露光されて静電潜像が形成される。次いで、
静電潜像は現像装置４によつて現像されトナー像
を形成する。かかるトナー像は転写分離装置５に
より転写紙８に転写され、転写紙８上に転写され
た転写像はその後定着される。転写後、感光ドラ
ム１の表面に残存するトナーは除電装置により除
電され感光ドラム１の表面から容易に離脱可能と
されクリーニング装置７に送られる。 Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram of an electrophotographic copying machine equipped with a fur brush cleaning device having a blower. That is, in FIG. 1, a photosensitive drum 1 is provided rotatably in the direction of the arrow, and around the photosensitive drum 1, a charging device 2, an exposure device 3, a developing device 4, and a transfer separation device 5 are installed according to the direction of rotation. , a static eliminator 6, and a fur brush cleaning device 7 are provided. Therefore, as the photosensitive drum rotates, the surface of the photosensitive drum 1 is charged by the charging device 2.
The exposure device 3 exposes the document image to light to form an electrostatic latent image. Then,
The electrostatic latent image is developed by a developing device 4 to form a toner image. This toner image is transferred onto transfer paper 8 by transfer separation device 5, and the transferred image transferred onto transfer paper 8 is then fixed. After the transfer, the toner remaining on the surface of the photosensitive drum 1 is neutralized by a static eliminator, and is sent to the cleaning device 7 so that it can be easily removed from the surface of the photosensitive drum 1 .
フアーブラシクリーニング装置７は、フアーブ
ラシ７ａ、フリツカバー７ｂ、空気流路７ｃ、フ
イルタ７ｄ、及びブロワ７ｅを有する。従つて、
感光体ドラム１上に残存するトナーはフアーブラ
シ７ａにより感光ドラム１表面から掻き取られ
る。そして、フアーブラシ７ａの回転によりブラ
シがフリツカバー７ｂに接触し、ブラシ上に掻き
取られたトナーは空気流路７ｃを流れる空気流中
に浮遊される。空気流路７ｃを流れる空気流はブ
ロワ７ｅの回転により形成される。故に、空気中
に浮遊されたトナーはブロワ７ｅ側に送られ、途
中フイルタ７ｄに捕獲されて回収される。 The fur brush cleaning device 7 includes a fur brush 7a, a frit cover 7b, an air flow path 7c, a filter 7d, and a blower 7e. Therefore,
The toner remaining on the photosensitive drum 1 is scraped off from the surface of the photosensitive drum 1 by the fur brush 7a. Then, as the fur brush 7a rotates, the brush comes into contact with the frit cover 7b, and the toner scraped onto the brush is suspended in the air flow flowing through the air flow path 7c. The air flow flowing through the air flow path 7c is formed by the rotation of the blower 7e. Therefore, the toner suspended in the air is sent to the blower 7e, and is captured and recovered by the filter 7d on the way.
第１図に示す様なフアーブラシクリーニング方
法において、ブロワ７ｅを常時回転駆動させるこ
とが考えられるが、その場合には電力浪費とな
り、又騒音源ともなるので特策ではない。一方、
従来技術では、一般に、フアーブラシ７ａの駆動
と同時にブロワ７ｅの駆動を操作しているが、こ
の場合にはトナーの飛散及び経路途中でのトナー
の堆積等の不都合が生じる。本発明はこれらの点
に着目してなされたもので、第１に、ブロワ７ｅ
をフアーブラシ７ａと同時に駆動回転させたので
は、フアーブラシクリーニング装置７全体を通し
ての空気流を形成するのに時間遅れがあり、その
時間遅れの間、フアーブラシ外壁７ｆと感光ドラ
ム１との間の間隙９からトナーが外部に飛散して
しまうので、ブラシ７ａを回転駆動する前にブロ
ワ７ｅを回転駆動させ、クリーニング装置７全体
を通しての空気流が形成された後にブラシ７ａを
回転駆動させる様にしたものである。この様にす
ることにより前記時間遅れは補填されトナーが外
部に飛散されることは防止される。尚、ブロワ７
ｅの回転駆動開始とブラシ７ａの回転駆動開始と
の間の時間間隔は、ブロワ７ｅの吸引力、フイル
タ７ｄでの圧力降下、空気流路７ｃの寸法形状等
種々の条件を考慮して適宜決定されるものとす
る。 In the fur brush cleaning method as shown in FIG. 1, it is conceivable to drive the blower 7e in constant rotation, but in that case it is not a special solution as it wastes power and also becomes a source of noise. on the other hand,
In the prior art, the blower 7e is generally driven at the same time as the fur brush 7a is driven, but in this case, problems such as toner scattering and toner accumulation in the middle of the toner path occur. The present invention has been made focusing on these points, and firstly, the blower 7e
If the fur brush 7a is driven and rotated at the same time as the fur brush 7a, there is a time delay in forming an air flow through the entire fur brush cleaning device 7, and during this time delay, there is a gap between the fur brush outer wall 7f and the photosensitive drum 1. Since the toner is scattered outside from the cleaning device 7, the blower 7e is rotated before the brush 7a is rotated, and the brush 7a is rotated after the airflow is formed through the entire cleaning device 7. It is. By doing this, the time delay is compensated for and the toner is prevented from being scattered outside. Furthermore, blower 7
The time interval between the start of the rotational drive of the brush 7a and the start of the rotational drive of the brush 7a is appropriately determined in consideration of various conditions such as the suction force of the blower 7e, the pressure drop in the filter 7d, and the size and shape of the air flow path 7c. shall be carried out.
一方、ブロワ７ｅをフアーブラシ７ａと同時に
停止させると、空気流路７ｃ内に浮遊するトナー
は自然落下して流路７ｃの底部に堆積される。一
度底部に堆積したトナーは再度ブロワ７ｅを回転
駆動しても除去することが困難で、又その後のト
ナーの堆積を助長する原因となり、クリーニング
効果の低下や流路閉塞を発生する。従つて、本発
明においては、フアーブラシ７ａが停止した後も
引き続き所定時間だけブロワ７ｅを回転状態に維
持させている。こうすることにより、フアーブラ
シ７ａが停止後、空気流路７ｃ内には空気流が持
続されることになるので、流路７ｃ内に浮遊する
トナーはブロワ７ｅにより吸引されて全てフイル
タ７ｄ内に補獲されることとなる。従つて、空気
流路７ｃでのトナーの堆積は防止され、常時、所
望のクリーニング効果を期待可能であると共に、
メインテナンスを容易となる。この場合において
も、フアーブラシ７ａの停止とブロワ７ｅの停止
との間の時間間隔は、ブロワ７ｅの吸引力等種々
の条件に応じ適宜決定される。尚、第１図におい
て、例えばマイクロコンピユータ１０を使用して
ドラム１、ブラシ７ａ、ブロワ７ｅ等の回転駆動
を制御する場合を示してある。 On the other hand, when the blower 7e is stopped at the same time as the fur brush 7a, the toner floating in the air flow path 7c naturally falls and is deposited at the bottom of the flow path 7c. Once the toner has accumulated on the bottom, it is difficult to remove it even if the blower 7e is rotated again, and this causes further accumulation of toner, resulting in a reduction in the cleaning effect and clogging of the flow path. Therefore, in the present invention, the blower 7e is maintained in a rotating state for a predetermined period of time even after the fur brush 7a has stopped. By doing this, the air flow is maintained in the air flow path 7c after the fur brush 7a stops, so that the toner floating in the flow path 7c is sucked by the blower 7e and completely replenished into the filter 7d. It will be captured. Therefore, toner accumulation in the air flow path 7c is prevented, and the desired cleaning effect can be expected at all times.
Maintenance becomes easier. Even in this case, the time interval between the stop of the fur brush 7a and the stop of the blower 7e is determined as appropriate depending on various conditions such as the suction force of the blower 7e. Note that FIG. 1 shows a case where, for example, a microcomputer 10 is used to control the rotational drive of the drum 1, brush 7a, blower 7e, etc.
第２図は本発明に基きコピーサイクルを実施す
る具体的プロセスの１例を示すグラフである。第
２図において、Ａはコピーサイクルのオン・オフ
状態を示しており、オン状態（高値状態）にある
場合に、帯電、露光、現像、転写、分離、除電、
クリーニングの複写作業が実施される。Ｂは感光
ドラム１がオン・オフ制御される場合を示してお
り、一方、Ｃはブロワ７ｅ、Ｄはフアーブラシ７
ａをオン・オフ制御する状態を示している。従つ
て、複写スイツチ（不図示）を投入すると、第２
図Ａで示す如く、コピーサイクルが開始され、第
２図Ｃで示す如く、ブロワ７ｅが回転駆動され
る。そして、クリーニング装置７の全体を通して
空気流が形成された後、即ちt1時間経過後、第２
図Ｂ及びＤで示す如く、感光ドラム１及びフアー
ブラシ７ａを同時に回転駆動させる。実験的には
t1は約１〜２秒程度であつた。その後、複写作業
が実施され、複写作業完了後、第２図Ｂ及びＤで
示す如く、感光ドラム１及びフアーブラシ７ａの
回転は同時に停止される。その後、t2時間経過後
に、ブロワ７ｅの回転を停止させてコピーサイク
ルは完了する。尚、t2は実験的には１秒以上が適
当であつた。しかしながら、t1及びt2の上記値は
特定の実験条件下における値であつて、単に遅れ
時間の目安を示すに過ぎず本発明をこれらの値に
限定する趣旨ではない。 FIG. 2 is a graph showing one example of a specific process for implementing a copy cycle according to the present invention. In FIG. 2, A indicates the on/off state of the copy cycle, and when it is in the on state (high value state), charging, exposure, development, transfer, separation, static elimination,
Cleaning copying work is carried out. B shows the case where the photosensitive drum 1 is controlled on and off, while C shows the blower 7e, and D shows the blower brush 7.
This shows the state in which the on/off control of a is performed. Therefore, when the copy switch (not shown) is turned on, the second
As shown in FIG. 2A, a copy cycle is started, and as shown in FIG. 2C, the blower 7e is driven to rotate. After the air flow has been formed throughout the cleaning device 7, i.e. after t 1 hour, the second
As shown in FIGS. B and D, the photosensitive drum 1 and the fur brush 7a are simultaneously driven to rotate. Experimentally
t1 was about 1 to 2 seconds. Thereafter, copying work is carried out, and after the copying work is completed, the rotations of the photosensitive drum 1 and the fur brush 7a are simultaneously stopped, as shown in FIGS. 2B and 2D. Thereafter, after t2 hours have elapsed, the rotation of the blower 7e is stopped and the copy cycle is completed. Note that t 2 was experimentally found to be 1 second or more. However, the above values of t 1 and t 2 are values under specific experimental conditions, and merely indicate the approximate delay time, and are not intended to limit the present invention to these values.
以上の構成を有する本発明によれば、明細書所
載の如き種々の効果を得られるものであるが、特
に、クリーニング装置からのトナーの飛散を完全
に防止可能としており、空気流路内でのトナーの
堆積を防止すると共にトナー回収効率の上昇及び
クリーニング効果の安定性を与えており、又、消
費電力を極小化して省エネ対策を計ると共に必要
時以外ブロワをオフさせておいて騒音発生の防止
にも貢献している。 According to the present invention having the above configuration, various effects as described in the specification can be obtained, but in particular, it is possible to completely prevent toner from scattering from the cleaning device, and it is possible to completely prevent toner from scattering in the air flow path. It prevents toner accumulation, increases toner collection efficiency, and stabilizes the cleaning effect.It also minimizes power consumption to save energy and eliminates noise by turning off the blower except when necessary. It also contributes to prevention.
第１図はブロワを有するフアーブラシクリーニ
ング装置を設けた電子写真複写装置の概略図、第
２図Ａ乃至Ｄは本発明に基きコピーサイクルを実
施する具体的プロセスの１例を示すグラフであ
る。
主要部分の符号の説明、７：フアーブラシクリ
ーニング装置、７ａ：フアーブラシ、７ｃ：空気
流路、７ｅ：ブロワ。
FIG. 1 is a schematic diagram of an electrophotographic copying machine equipped with a fur brush cleaning device having a blower, and FIGS. 2A to 2D are graphs showing one example of a specific process for carrying out a copy cycle according to the present invention. Explanation of symbols of main parts: 7: Fur brush cleaning device, 7a: Fur brush, 7c: Air flow path, 7e: Blower.
Claims (1)
シにより清掃し、ブロワにより前記フアーブラシ
から所定方向に空気流を流してトナーを回収する
フアーブラシクリーニング方法において、前記ブ
ロワの駆動開始後所定時間経過後に前記フアーブ
ラシの駆動を開始することを特徴とするフアーブ
ラシクリーニングの駆動方法。 ２ 感光体表面上に付着するトナーをフアーブラ
シにより清掃し、ブロワにより前記フアーブラシ
から所定方向に空気流を流してトナーを回収する
フアーブラシクリーニング方法において、前記フ
アーブラシの駆動停止後所定時間経過後に前記ブ
ロワの駆動を停止することを特徴とするフアーブ
ラシクリーニングの駆動方法。[Scope of Claims] 1. In a fur brush cleaning method in which toner adhering to the surface of a photoreceptor is cleaned by a fur brush, and the toner is collected by blowing an air flow from the fur brush in a predetermined direction with a blower, after the blower starts driving. A driving method for fur brush cleaning, characterized in that driving of the fur brush is started after a predetermined period of time has elapsed. 2. In a fur brush cleaning method in which toner adhering to the surface of a photoconductor is cleaned with a fur brush, and the toner is collected by causing an air flow to flow from the fur brush in a predetermined direction using a blower, the blower is removed after a predetermined time has elapsed after the drive of the fur brush is stopped. A fur brush cleaning driving method characterized by stopping the driving of the fur brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14181980A JPS5766463A (en) | 1980-10-09 | 1980-10-09 | Driving method for fur brush claning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14181980A JPS5766463A (en) | 1980-10-09 | 1980-10-09 | Driving method for fur brush claning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5766463A JPS5766463A (en) | 1982-04-22 |
| JPH0131191B2 true JPH0131191B2 (en) | 1989-06-23 |
Family
ID=15300858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14181980A Granted JPS5766463A (en) | 1980-10-09 | 1980-10-09 | Driving method for fur brush claning |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5766463A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8139993B2 (en) * | 2010-04-28 | 2012-03-20 | Xerox Corporation | Web cleaning systems including an electrostatic cleaning brush and methods of cleaning printed webs |
-
1980
- 1980-10-09 JP JP14181980A patent/JPS5766463A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5766463A (en) | 1982-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3917397A (en) | Mechanism for removing residual toner from electrostatic copier drum | |
| US4518248A (en) | Apparatus for forming image by developing charge latent image with two component dry developing agent | |
| JPH0131191B2 (en) | ||
| JPH07114319A (en) | Image forming device | |
| JPS63132271A (en) | Electrostatic recorder | |
| JPH06102800A (en) | Image forming device | |
| JP2000200020A (en) | Image forming device | |
| JPH09152793A (en) | Image forming device | |
| JP2867567B2 (en) | Fur brush cleaner | |
| JPS59188674A (en) | Image forming device | |
| JPH05297770A (en) | Cleaning device for image forming device | |
| JPH07230208A (en) | Image forming device | |
| JPH051316Y2 (en) | ||
| JP4139057B2 (en) | Toner scattering prevention device and image forming apparatus | |
| JPS5983185A (en) | Cleaning device of electrophotographic copying machine | |
| JPH0328450Y2 (en) | ||
| JPS63128386A (en) | Electrostatic recorder | |
| JP2001175061A (en) | Toner recycling system image forming device | |
| JPS59214872A (en) | Cleaning method of electrostatic charge holding member of copying machine | |
| JP3110596B2 (en) | Separation device and image forming device | |
| JPS6069677A (en) | Fur brush cleaning device | |
| JPS58187977A (en) | Electrophotographic device | |
| JPH0143721Y2 (en) | ||
| JPH05273846A (en) | Image forming device | |
| JPS59214876A (en) | Recovering method of residual toner |