JPH0648415B2 - Electrophotographic recording device - Google Patents
Electrophotographic recording deviceInfo
- Publication number
- JPH0648415B2 JPH0648415B2 JP60180568A JP18056885A JPH0648415B2 JP H0648415 B2 JPH0648415 B2 JP H0648415B2 JP 60180568 A JP60180568 A JP 60180568A JP 18056885 A JP18056885 A JP 18056885A JP H0648415 B2 JPH0648415 B2 JP H0648415B2
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive drum
- cleaning
- sheet
- paper
- toner
- 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 - Fee Related
Links
- 238000004140 cleaning Methods 0.000 claims description 81
- 238000012546 transfer Methods 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 9
- 229920000297 Rayon Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 239000002964 rayon Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229920002978 Vinylon Polymers 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims description 2
- 239000012209 synthetic fiber Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WVBBLATZSOLERT-UHFFFAOYSA-N gold tungsten Chemical compound [W].[Au] WVBBLATZSOLERT-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は乾式トナーを用いる電子写真記録装置に関す
る。The present invention relates to an electrophotographic recording device using a dry toner.
一般に乾式トナーを用いる電子写真記録装置は感光ドラ
ムへの帯電，露光，現像，転写，除電，クリーニングの
各工程から主に成り立つている。Generally, an electrophotographic recording apparatus using a dry toner mainly comprises steps of charging, exposing, developing, transferring, discharging, and cleaning a photosensitive drum.
第２図はこの種の電子写真記録装置の従来例を示す概略
図であり、図において１は感光ドラムでSeやSe系合金，
CdS，ZnO２，アモルフアスシリコン等の無機質や、有機
系感光体（ＯＰＣ）で代表される物質層を表面に持つ円
筒であり、矢印ａ方向に回転している。FIG. 2 is a schematic diagram showing a conventional example of this type of electrophotographic recording apparatus. In FIG. 2, 1 is a photosensitive drum, Se or Se-based alloy,
It is a cylinder having on its surface an inorganic material such as CdS, ZnO 2 , or amorphous silicon, or a material layer typified by an organic photoconductor (OPC), and is rotating in the direction of arrow a.
感光ドラム１の周囲には、一次帯電器２，露光光源３，
現像装置４，シートガイド５，搬送手段６，転写帯電器
７，分離帯電器８，定着装置９，除電用光源１０，クリ
ーニング装置１１が記録工程に応ずるように周面に沿つ
て配置されている。Around the photosensitive drum 1, a primary charger 2, an exposure light source 3,
The developing device 4, the sheet guide 5, the conveying means 6, the transfer charging device 7, the separation charging device 8, the fixing device 9, the discharging light source 10, and the cleaning device 11 are arranged along the peripheral surface so as to correspond to the recording process. .
このような構成により、矢印ａ方向に定速回転する感光
ドラム１の表面は一次帯電器２によつて均一に帯電され
た後、露光光源３により静電潜像を形成される。With such a configuration, the surface of the photosensitive drum 1 that rotates at a constant speed in the direction of the arrow a is uniformly charged by the primary charger 2, and then the exposure light source 3 forms an electrostatic latent image.
この感光ドラム１表面に形成された静電潜像は現像装置
４の現像ロール１２によつて供給されるトナーが付着す
ることによつてトナー像として可視像化される。The electrostatic latent image formed on the surface of the photosensitive drum 1 is visualized as a toner image by the toner supplied by the developing roller 12 of the developing device 4 being attached.
そして、このトナー像はシートガイド５を介して搬送手
段６により搬送されてくる記録用紙１３に転写帯電器７
によつて転写される。トナー像転写後、記録用紙１３は
分離帯電器８により感光ドラム１より分離され矢印ｂ方
向に搬送されて定着装置９によりトナー像の固定が行な
われる。Then, this toner image is transferred to the recording sheet 13 conveyed by the conveying means 6 via the sheet guide 5 and transferred to the charging device 7.
It is transcribed by. After the transfer of the toner image, the recording paper 13 is separated from the photosensitive drum 1 by the separation charger 8 and conveyed in the direction of the arrow b, and the toner image is fixed by the fixing device 9.
一方、トナー像転写後、感光ドラム１は引続き回転し、
除電用光源１０からの除電光により照射されて表面が一
様に除電された後、更にクリーニング装置１１により感
光ドラム１の表面に残留しているトナーが除去・回収さ
れ、次回の記録工程に備えられる。On the other hand, after the transfer of the toner image, the photosensitive drum 1 continues to rotate,
After the surface is uniformly discharged by being irradiated with the static elimination light from the static elimination light source 10, the cleaning device 11 further removes and collects the toner remaining on the surface of the photosensitive drum 1 to prepare for the next recording step. To be
このクリーニング装置１１のクリーニング部材として
は、スポンジロール，フアーブラシ，またはゴムブレー
ド等が用いられている。As a cleaning member of this cleaning device 11, a sponge roll, a fur brush, a rubber blade, or the like is used.
しかしながら上述した構成の装置では、繰返し感光ドラ
ムを使用しているうちにクリーニング装置によつても除
去しきれないトナーが除々に感光ドラム表面に堆積して
トナーフイルミングが発生し、画質品位が劣化し、最終
的には感光ドラムの寿命が短くなるという問題があつ
た。However, in the apparatus having the above-described configuration, the toner that cannot be completely removed by the cleaning device repeatedly accumulates on the surface of the photosensitive drum during repeated use of the photosensitive drum, resulting in toner filming, which deteriorates image quality. However, there is a problem that the life of the photosensitive drum is shortened in the end.
さらに、その原因を詳述するならば、すなわち、スポン
ジロールやフアーブラシを用いるクリーニング装置を有
する従来技術においては、一記録工程毎に充分な残留ト
ナー除去が出来ないために残留トナーの堆積がおこり、
それがトナーフイルミングとなり、ゴムブレードを用い
るクリーニング装置を有する従来技術においてはゴムブ
レードが感光ドラムに押付けられている摩擦でトナーを
構成する樹脂が薄膜状に感光ドラムの表面に付着してト
ナーフイルミングが発生する。Further, if the cause is described in detail, that is, in the conventional technique having a cleaning device using a sponge roll or a fur brush, residual toner is not sufficiently removed for each recording process, and thus residual toner is accumulated,
This becomes toner filming, and in the prior art having a cleaning device using a rubber blade, the resin that constitutes the toner adheres to the surface of the photosensitive drum in a thin film due to the friction that the rubber blade is pressed against the photosensitive drum, and the toner film is formed. Minging occurs.
また、このようにして発生したトナーフイルミングを除
去、またはトナーフイルミング防止のために付着トナー
を除去するためには前記した従来の装置においては、サ
ービス員が定期メンテナンス又はユーザより指摘された
時点で感光ドラムを装置より取外し、レーヨンウール等
を用いて手作業で感光ドラム表面を拭取り清掃していた
が、前述の如く感光ドラムは各装置の中心部にあり、か
つデリケートな材質からなるものであるので、この清掃
作業時に表面を損傷したり、異物を付着させる等の感光
ドラムとしての機能を損う事故の発生につながるという
問題があつた。Further, in order to remove the toner filming generated in this way or to remove the adhered toner to prevent the toner filming, in the above-mentioned conventional apparatus, a service person performs a periodic maintenance or a time point pointed out by a user. The photosensitive drum was removed from the device with, and the surface of the photosensitive drum was wiped and cleaned by hand using rayon wool, but as mentioned above, the photosensitive drum is in the center of each device and is made of delicate material. Therefore, there is a problem in that the surface of the photosensitive drum is damaged during the cleaning operation, and an accident such as a foreign substance adhering to the photosensitive drum is impaired.
本発明は、感光ドラムと、該感光ドラムの表面を帯電さ
せるための一次帯電器と、該感光ドラムの表面に静電潜
像を形成するための露光光源と、該感光ドラムの表面
に、帯電したトナーを供給する現像装置と、用紙を搬送
する搬送手段と、該感光ドラムの表面に形成されたトナ
ー像を該用紙に転写する転写帯電器と、該用紙を該感光
ドラムより分離する分離帯電器と、該用紙にトナー像を
固定する定着装置と、該感光ドラムの表面を除電する除
電手段と、該感光ドラムの表面の残留トナーを清掃する
クリーニング装置とを有する電子写真記録装置におい
て、前記クリーニング装置でとり切れない前記感光ドラ
ムの表面の付着トナーを除去する動作を指示する清掃動
作指示手段と、前記分離帯電器と定着装置の間に用紙の
検出手段を設け、前記清掃動作指示手段の指示によつ
て、通常の記録動作を休止させ、その状態で、前記搬送
手段により用紙を搬送し、前記検出手段が該用紙の端部
を検知した時点で前記搬送手段が該用紙の搬送を停止も
しくは減速制御し、帯電している前記感光ドラム、との
静電気力により、前記用紙を吸着させ、この用紙の吸着
状態で、前記感光ドラムを一定数回転させて摩擦清掃す
ることを特徴とする。The present invention relates to a photosensitive drum, a primary charger for charging the surface of the photosensitive drum, an exposure light source for forming an electrostatic latent image on the surface of the photosensitive drum, and a charging for the surface of the photosensitive drum. Developing device for supplying the toner, conveying means for conveying the sheet, transfer charger for transferring the toner image formed on the surface of the photosensitive drum to the sheet, and separation charging for separating the sheet from the photosensitive drum An electrophotographic recording apparatus comprising: a container, a fixing device for fixing a toner image on the sheet, a charge removing unit for removing charge on the surface of the photosensitive drum, and a cleaning device for cleaning residual toner on the surface of the photosensitive drum, A cleaning operation instructing means for instructing an operation of removing the toner adhering to the surface of the photosensitive drum which cannot be completely removed by a cleaning device, and a paper detecting means between the separation charger and the fixing device are provided. According to the instruction of the sweeping operation instructing means, the normal recording operation is stopped, and in that state, the paper is conveyed by the conveying means, and when the detecting means detects the edge of the paper, the conveying means Stopping or decelerating the conveyance of the paper, adsorbing the paper by the electrostatic force with the charged photosensitive drum, and rotating the photosensitive drum a certain number of times in the adsorbed state of the paper to perform friction cleaning. Is characterized by.
さらに、上記清掃動作時に用紙として搬送手段で搬送可
能な形状をしたクリーニングペーパを用いることを特徴
とする。Further, it is characterized in that cleaning paper having a shape that can be conveyed by a conveying means is used as a sheet during the cleaning operation.
以上の構成により本発明は、クリーニングペーパを記録
用紙同様に装置内に送込み、感光ドラム表面に接触させ
た時点で、搬送を停止もしくは減速し、感光ドラム表面
にこのクリーニングペーパを静電気力により吸着させ、
これにより、清掃を目的として感光ドラムを一定数回転
させて感光ドラムの表面の付着トナーを拭取り、かつ拭
取り終了後、このクリーニングペーバを記録用紙同様に
装置より排出することができる。According to the present invention having the above-described structure, the cleaning paper is fed into the apparatus like the recording paper and is stopped or decelerated at the time of contact with the surface of the photosensitive drum, and the cleaning paper is attracted to the surface of the photosensitive drum by electrostatic force. Let
As a result, the photosensitive drum can be rotated a certain number of times for the purpose of cleaning to wipe off the toner adhering to the surface of the photosensitive drum, and after the cleaning is completed, this cleaning paver can be discharged from the apparatus like the recording paper.
以下図面に従って実施例を説明する。 Embodiments will be described below with reference to the drawings.
第１図は本発明の一実施例を示す概略図である。図にお
いて１は感光ドラム、２は一次帯電器、３は露光光源、
４は現像装置、５Ａ，５Ｂ，５Ｃはシートガイド、６は
搬送手段、７は転写帯電器、８は分離帯電器、９は定着
装置、１０は除電用光源、１１はクリーニング装置であ
り、一般の乾式トナーを用いた電子写真記録装置の記録
工程に係る構成要素と同一のものである。これらの装置
は、清掃時には従来技術の項で示した各々の記録工程と
しての動作は休止する。FIG. 1 is a schematic view showing an embodiment of the present invention. In the figure, 1 is a photosensitive drum, 2 is a primary charger, 3 is an exposure light source,
4 is a developing device, 5A, 5B and 5C are sheet guides, 6 is a conveying means, 7 is a transfer charger, 8 is a separation charger, 9 is a fixing device, 10 is a light source for discharging electricity, and 11 is a cleaning device. The same constituent elements as those involved in the recording process of the electrophotographic recording apparatus using the dry toner. During cleaning, these devices stop the operation as each recording process described in the section of the prior art.
１４はクリーニングペーパであり、記録用紙１５をセツ
トする用紙カセツト１６にセツト可能な形状を成してい
る。A cleaning paper 14 has a shape capable of being set on a paper cassette 16 for setting the recording paper 15.
１７は、前記用紙カセツト１６から該記録用紙１５を繰
出す繰出しローラであり、該繰出しローラ１７は清掃時
にはクリーニングペーパ１４の繰出しを制御する。A feeding roller 17 feeds the recording paper 15 from the paper cassette 16, and the feeding roller 17 controls the feeding of the cleaning paper 14 during cleaning.
クリーニングペーパ１４の素材としては、レーヨン，ア
セテート，ナイロン，ビニロン，ビニリデン，ポリ塩化
ビニル，ポリエステル，アクリル，ポリエチレン，ポリ
プロピレン，ポリウレタン等の合成繊維の不織布、また
はガラスおよびカーボン繊維や羊毛フエルト等の使用が
可能である。As the material of the cleaning paper 14, non-woven fabric of synthetic fiber such as rayon, acetate, nylon, vinylon, vinylidene, polyvinyl chloride, polyester, acrylic, polyethylene, polypropylene, polyurethane, or glass and carbon fiber or wool felt is used. It is possible.
また、クリーニングペーパ１４として、平滑度（ＪＩＳ
Ｐ８１４３による）が１００秒以下、理想的には６０
秒以下の表面を有するフイルム状のものであれば、通常
のコピー用紙も使用することができる。Further, as the cleaning paper 14, smoothness (JIS
(According to P8143) is 100 seconds or less, ideally 60
Ordinary copy paper can also be used as long as it is a film having a surface of a second or less.
１８は、シートガイド５Ｃ側に設けられた検出手段で、
該検出手段１８は、発光ダイオード１８ａと受光ダイオ
ード１８ｂの組合せにより構成されている。18 is a detection means provided on the sheet guide 5C side,
The detecting means 18 is composed of a combination of a light emitting diode 18a and a light receiving diode 18b.
検出手段１８の形式としては上述のような透過形センサ
以外にも、反射型センサやマイクロスイツチとレバーの
組合せによるもの等が考えられる。As the type of the detecting means 18, in addition to the transmission type sensor as described above, a reflection type sensor or a combination of a micro switch and a lever can be considered.
６ａはプレツシヤローラであり、フイードローラ６ｂと
共に搬送手段を構成しており、該プレツシヤローラ６ａ
は清掃時にはクリーニングペーパ１４の搬送制御を行
う。Reference numeral 6a is a press roller, which constitutes a conveying means together with the feed roller 6b.
Controls the conveyance of the cleaning paper 14 during cleaning.
次に以上の構成による本発明の清掃動作を説明する。Next, the cleaning operation of the present invention having the above configuration will be described.
まず、オペレータが用紙カセット１６内の記録用紙１５
の最上部に、クリーニングペーパ１４をセツトし、図示
しない操作部にある清掃動作を指示するスイツチを押下
すると、該クリーニングペーパ１４は用紙カセツト１６
より、繰出しローラ１７によりシートガイド５Ａへ繰出
される。First, the operator sets the recording paper 15 in the paper cassette 16.
When the cleaning paper 14 is set on the uppermost part of the sheet and the switch for instructing the cleaning operation is pushed down on the operation unit (not shown), the cleaning paper 14 is set on the paper cassette 16
Thus, the feeding roller 17 feeds the sheet guide 5A.
シートガイド５Ａへ繰出されたクリーニングペーパ１４
は、次にフイードローラ６ｂおよびプレツシヤローラ６
ａによりシートガイド５Ｂへ搬送され、感光ドラム１と
接触し、転写帯電器７と感光ドラム１の間を通過して分
離帯電器８により感光ドラム１より分離され、シートガ
イド５Ｃへ搬送され検出手段１８へ到達する。Cleaning paper 14 fed to the sheet guide 5A
Then feed roller 6b and press roller 6
a is conveyed to the sheet guide 5B, comes into contact with the photosensitive drum 1, passes between the transfer charger 7 and the photosensitive drum 1, is separated from the photosensitive drum 1 by the separation charger 8, is conveyed to the sheet guide 5C, and is a detection unit. Reach 18
クリーニングペーパ１４の前端部が検出手段１８の位置
に到達すると、フイードローラ６ｂの図示せぬ駆動系を
停止し、プレツシヤローラ６ａとの間でクリーニングペ
ーパ１４の後端部を挟込んで固定する。この状態におい
て感光ドラム１が一定時間矢印ａ方向に回転し清掃が行
なわれる。When the front end of the cleaning paper 14 reaches the position of the detecting means 18, the drive system (not shown) of the feed roller 6b is stopped, and the rear end of the cleaning paper 14 is sandwiched and fixed between the cleaning roller 6a and the pressure roller 6a. In this state, the photosensitive drum 1 is rotated in the direction of arrow a for a certain period of time to perform cleaning.
この時、感光ドラム１を一次帯電器２で均一に帯電さ
せ、これにより生ずる感光ドラム１表面の静電気力によ
つてクリーニングペーパ１４を転写帯電器７の部分にて
吸着させる。この吸着によりクリーニングペーパ１４は
感光ドラム１表面を摩擦清掃する。At this time, the photosensitive drum 1 is uniformly charged by the primary charger 2, and the electrostatic force on the surface of the photosensitive drum 1 generated by this causes the cleaning paper 14 to be adsorbed by the transfer charger 7. By this adsorption, the cleaning paper 14 frictionally cleans the surface of the photosensitive drum 1.
更に、転写帯電器７により、クリーニングペーパ１４の
裏面より、一次帯電器２と逆極性の帯電を行うようにす
ればより強く、均一に吸着されることとなる。Furthermore, if the transfer charger 7 charges the cleaning paper 14 from the back surface with a polarity opposite to that of the primary charger 2, the toner is more strongly and uniformly adsorbed.
無論、この間、露光光源３は光書込みを行なわないよう
にし、現像装置４にバイアス電圧を印加して清掃中には
感光ドラム１表面にトナー像が形成されないように、上
記の清掃動作を指示するスイツチを押下した時点で制御
される。Of course, during this period, the exposure light source 3 does not perform optical writing, and a bias voltage is applied to the developing device 4 to instruct the cleaning operation so that a toner image is not formed on the surface of the photosensitive drum 1 during cleaning. It is controlled when the switch is pressed.
特に、現像装置４のトナーが、感光ドラム１との間４ａ
に出てこないように制御する手段を設ければなお良い結
果が得られる。In particular, the toner of the developing device 4 is transferred to the photosensitive drum 1 by 4a.
Even better results can be obtained by providing a control means so as not to come out.
この状態で感光ドラム１を複数回回転させ付着トナーを
クリーニングペーパ１４で拭取つた後、オペレータのキ
ースイツチ指示により、もしくは自動的に用紙搬送系の
駆動源を再度回転させ、クリーニングペーパ１４を定着
装置９へ搬送し、クリーニングペーパに付着した感光ド
ラム１より拭取られたトナーをクリーニングペーパ１４
上に定着して装置外に排出する。In this state, the photosensitive drum 1 is rotated a plurality of times to wipe off the adhered toner with the cleaning paper 14, and then the drive source of the paper transport system is again rotated by the operator's key switch instruction or automatically to fix the cleaning paper 14 to the fixing device. 9 and the toner wiped from the photosensitive drum 1 adhering to the cleaning paper is cleaned with the cleaning paper 14.
Fix it on top and discharge it out of the device.
本実施例では、クリーニングペーパ１４が検出手段１８
の位置に来た時、フイードローラ６ｂを停止し、クリー
ニングペーパ１４を固定したが、この停止のタイミング
は他の手段によつても得ることができる。In this embodiment, the cleaning paper 14 is the detecting means 18
When the position is reached, the feed roller 6b is stopped and the cleaning paper 14 is fixed, but the stop timing can be obtained by other means.
たとえば、繰出しローラ１７の回転開始時から一定時間
を計時して作ることもできるし、また、用紙搬送路中に
設けられているその他のセンサーでクリーニングペーパ
１４を検出た時点から一定時間を計時することによつて
も作ることが可能である。For example, it can be created by counting a fixed time from the start of the rotation of the feeding roller 17, or the fixed time can be measured from the time when the cleaning paper 14 is detected by another sensor provided in the paper conveyance path. It is also possible to make things.
また、本実施例の動作の説明において、クリーニングペ
ーパ１４が定位置に搬送されてきた時、フイードローラ
６ｂを停止しプレツシヤローラ６ａとの間でクリーニン
グペーパ１４を固定，停止させると述べたが、クリーニ
ングペーパ１４の長さに充分な余裕長をもたせて、完全
に停止させる代りに普通の搬送速度の０．１〜０．０１
倍程度に、フイードローラ６ｂにより減速制御して搬送
するようにすれば、清掃中徐々にクリーニングペーパ１
４の未使用部を感光ドラム１に接触することができるた
め、清掃をより良好に実施することが可能となる。Further, in the description of the operation of this embodiment, when the cleaning paper 14 is conveyed to the fixed position, it is stated that the feed roller 6b is stopped and the cleaning paper 14 is fixed and stopped between the cleaning roller 6a and the pressing roller 6a. 14 has a sufficient margin length, and instead of being completely stopped, a normal conveying speed of 0.1 to 0.01
If the feeding roller 6b is controlled to decelerate the speed of the paper twice and then the paper is conveyed, the cleaning paper 1 is gradually fed during cleaning.
Since the unused portion of No. 4 can be brought into contact with the photosensitive drum 1, cleaning can be performed better.
実験によると、Se系の感光ドラム１の表面電位を＋６０
０Ｖに帯電した時、レーヨン製の不織布のクリーニング
ペーパ１４より約１０mm離れた１００μのタングステン
金メツキ線に−６KVの電圧を印加した時約０．１５Kg／
cm2の圧力をかけたのと同等の吸引力によりクリーニン
グペーパ１４が感光ドラムに吸引した。According to the experiment, the surface potential of the Se type photosensitive drum 1 is +60.
When charged to 0 V, when a voltage of -6 KV is applied to a 100 μ tungsten gold plating wire, which is about 10 mm away from the cleaning paper 14 made of rayon non-woven fabric, about 0.15 Kg /
The cleaning paper 14 was sucked onto the photosensitive drum by a suction force equivalent to that applied with a pressure of cm 2 .
感光ドラム１とクリーニングペーパ１４の摩擦系数は0.
1以下であるためクリーニングペーパ１４を固定するの
に必要な力はＢ４サイズの場合で約２Kgとなつた。The friction coefficient between the photosensitive drum 1 and the cleaning paper 14 is 0.
Since it is 1 or less, the force required to fix the cleaning paper 14 is about 2 kg in the case of B4 size.
このようにクリーニングペーパ１４を均一な力で感光ド
ラムに押付けた状態で感光ドラムを約１０回転回転させ
たところ、クリーニング装置１１では除去しきれなかつ
た感光ドラム１上の付着トナーが完全に除去することが
できた。As described above, when the photosensitive drum is rotated about 10 times while the cleaning paper 14 is pressed against the photosensitive drum with a uniform force, the cleaning device 11 completely removes the adhered toner on the photosensitive drum 1, which cannot be completely removed. I was able to.
実験に際しては、クリーニングペーパ１４とし日本バイ
リーン株式会社製 バイリーワＮＭ−５１００を使用し
た。At the time of the experiment, as the cleaning paper 14, Vileiwa NM-5100 manufactured by Nippon Vilene Co., Ltd. was used.
以上詳細に説明した如く本発明によれば、オペレータが
クリーニングペーパを用紙カセツトにセツトし、スイツ
チを押下するだけで感光ドラムの清掃が自動的に行なえ
る栄 ため、感光ドラム表面の損傷，変質等の事故を誘発する
ような解体清掃をメンテナンス作業より排除することが
できるという効果がある。As described in detail above, according to the present invention, the operator can set the cleaning paper on the paper cassette and press the switch to automatically clean the photosensitive drum. There is an effect that the dismantling and cleaning that causes the above accident can be eliminated from the maintenance work.
また、解体清掃を不要とすることから、ユーザーがトナ
ー付着の初期の段階で感光ドラムを清掃することによ
り、トナーフイルミングの発生を未然に防止することが
できるという効果を奏する。Further, since disassembly cleaning is unnecessary, the user can prevent the occurrence of toner filming by cleaning the photosensitive drum at the initial stage of toner adhesion.
これは、トナーフイルミングによる感光体表面の凹部発
生を防止することも意味している。This also means preventing the occurrence of recesses on the surface of the photoconductor due to toner filming.
更に、クリーニングペーパが定着装置を通過して拭取つ
たトナーをクリーニングペーパ上に定着させて排出され
るので、手を汚すことなく清掃を行なえるという効果も
有する。Furthermore, since the cleaning paper passes through the fixing device and the toner wiped off is fixed on the cleaning paper and discharged, the cleaning paper can be cleaned without soiling the hands.
第１図は本発明の一実施例を示す概略図、第２図は従来
例を示す概略図である。 １……感光体、２……一次帯電器、７……転写帯電器、
８……分離帯電器、６……搬送手段、６ａ……プレツシ
ヤローラ、６ｂ……フイードローラ、９……定着装置、
１４……クリーニングペーパ、１６……用紙カセツト、
１８……検出手段FIG. 1 is a schematic view showing an embodiment of the present invention, and FIG. 2 is a schematic view showing a conventional example. 1 ... photoreceptor, 2 ... primary charger, 7 ... transfer charger,
8 ... Separation charger, 6 ... Conveying means, 6a ... Press roller, 6b ... Feed roller, 9 ... Fixing device,
14 ... Cleaning paper, 16 ... Paper cassette,
18 ... Detecting means
Claims (4)
させるための一次帯電器と、 該感光ドラムの表面に静電潜像を形成するための露光光
源と、該感光ドラムの表面に、帯電したトナーを供給す
る現像装置と、 用紙を搬送する搬送手段と、 該感光ドラムの表面に形成されたトナー像を該用紙に転
写する転写帯電器と、 該用紙を該感光ドラムより分離する分離帯電器と、 該用紙にトナー像を固定する定着装置と、 該感光ドラムの表面を除電する除電手段と、 該感光ドラムの表面の残留トナーを清掃するクリーニン
グ装置とを有する電子写真記録装置において、 前記クリーニング装置でとり切れない前記感光ドラムの
表面の付着トナーを除去する動作を指示する清掃動作指
示手段と、 前記分離帯電器と定着装置の間に用紙の検出手段を設
け、 前記清掃動作指示手段の指示によつて、通常の記録動作
を休止させ、 その状態で前記搬送手段により用紙を搬送し、前記検出
手段が該用紙の端部を検知した時点で前記搬送手段が該
用紙の搬送を停止もしくは減速制御し、 帯電している前記感光ドラムの静電気力により、前記用
紙を吸着させ、 この用紙の吸着状態で、前記感光ドラムを一定数回転さ
せて摩擦清掃することを特徴とする電子写真記録装置。1. A photosensitive drum, a primary charger for charging the surface of the photosensitive drum, an exposure light source for forming an electrostatic latent image on the surface of the photosensitive drum, and a surface of the photosensitive drum, A developing device that supplies charged toner, a conveying unit that conveys a sheet, a transfer charger that transfers the toner image formed on the surface of the photosensitive drum to the sheet, and a separation unit that separates the sheet from the photosensitive drum. An electrophotographic recording apparatus comprising: a charger, a fixing device for fixing a toner image on the sheet, a charge removing unit for removing charge from the surface of the photosensitive drum, and a cleaning device for cleaning residual toner on the surface of the photosensitive drum, Cleaning operation instructing means for instructing an operation of removing the toner adhering to the surface of the photosensitive drum which cannot be completely removed by the cleaning device, and paper detecting means between the separation charger and the fixing device are provided. In accordance with an instruction from the cleaning operation instructing means, the normal recording operation is stopped, the sheet is conveyed by the conveying means in that state, and when the detecting means detects the edge of the sheet, the conveying means The conveyance of the sheet is stopped or controlled to be decelerated, the sheet is attracted by the electrostatic force of the charged photosensitive drum, and the photosensitive drum is rotated a certain number of times in this attracted state to perform friction cleaning. Characteristic electrophotographic recording device.
可能な形状をしたクリーニングペーパを用いることを特
徴とする特許請求の範囲第１項記載の電子写真記録装
置。2. The electrophotographic recording apparatus according to claim 1, wherein a cleaning paper having a shape that can be conveyed by a conveying unit is used as a sheet during the cleaning operation.
テート，ナイロン，ビニロン，ビニリデン，ポリ塩化ビ
ニル，ポリエステル，アクリル，ポリエチレン，ポリプ
ロピレン，ポリウレタン等の合成繊維の不織布、または
ガラス繊維布や羊毛フエルトを使用することを特徴とす
る特許請求の範囲第２項記載の電子写真記録装置。3. A non-woven fabric of synthetic fibers such as rayon, acetate, nylon, vinylon, vinylidene, polyvinyl chloride, polyester, acrylic, polyethylene, polypropylene, polyurethane, or glass fiber cloth or wool felt is used as the cleaning paper. An electrophotographic recording apparatus according to claim 2, which is characterized in that.
Ｐ８１４３による）１００秒以下の表面を有する物材
を使用することを特徴とする特許請求の範囲第２項記載
の電子写真記録装置。4. A smoothness (JIS)
An electrophotographic recording apparatus according to claim 2, wherein a material having a surface of 100 seconds or less (according to P8143) is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60180568A JPH0648415B2 (en) | 1985-08-19 | 1985-08-19 | Electrophotographic recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60180568A JPH0648415B2 (en) | 1985-08-19 | 1985-08-19 | Electrophotographic recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6240483A JPS6240483A (en) | 1987-02-21 |
| JPH0648415B2 true JPH0648415B2 (en) | 1994-06-22 |
Family
ID=16085549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60180568A Expired - Fee Related JPH0648415B2 (en) | 1985-08-19 | 1985-08-19 | Electrophotographic recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648415B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02196270A (en) * | 1989-01-25 | 1990-08-02 | Canon Inc | Exchangeable consumable goods used for image forming device |
| TW307822B (en) * | 1994-03-11 | 1997-06-11 | Xeikon Nv | |
| EP0671672A3 (en) * | 1994-03-11 | 1996-04-24 | Xeikon Nv | Electrostatographic printer for forming an image onto a web. |
| CN2716870Y (en) | 2002-09-17 | 2005-08-10 | 兄弟工业株式会社 | Image processing apparatus and image forming equipment |
| JP2007121649A (en) * | 2005-10-27 | 2007-05-17 | Sharp Corp | Photoconductor cleaning method, image forming apparatus, program, and recording medium |
| JP2010032909A (en) * | 2008-07-30 | 2010-02-12 | Oki Data Corp | Image forming device |
| JP4992920B2 (en) * | 2009-02-12 | 2012-08-08 | ブラザー工業株式会社 | Cleaning sheet, cleaning method, and image forming apparatus |
-
1985
- 1985-08-19 JP JP60180568A patent/JPH0648415B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6240483A (en) | 1987-02-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |