JP2921966B2 - Cleaning equipment - Google Patents
Cleaning equipmentInfo
- Publication number
- JP2921966B2 JP2921966B2 JP30185490A JP30185490A JP2921966B2 JP 2921966 B2 JP2921966 B2 JP 2921966B2 JP 30185490 A JP30185490 A JP 30185490A JP 30185490 A JP30185490 A JP 30185490A JP 2921966 B2 JP2921966 B2 JP 2921966B2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- conveying
- spiral
- blades
- vibrating
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、複写機、プリンタ等の画像形成装置に関す
るものであり、特にそのクリーニング装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as a copying machine and a printer, and more particularly to a cleaning device for the image forming apparatus.
従来の技術 複写機等の画像形成装置に用いられるクリーニング装
置としては、感光体表面に圧接して設置された弾性部材
（以下「ブレード」とも云う）によって前記感光体の表
面の残留トナーを掻き落とし、その掻き落とされたトナ
ーを螺旋（スパイラル）状の搬送部材（以下「搬送スパ
イラル」とも云う）の回転により回収容器まで搬送し回
収するようにしたものが一般的である。2. Description of the Related Art As a cleaning device used in an image forming apparatus such as a copying machine, an elastic member (hereinafter, also referred to as a “blade”) placed in pressure contact with the surface of a photoconductor scrapes residual toner on the surface of the photoconductor. The scraped toner is generally conveyed to a collecting container by rotation of a spiral conveying member (hereinafter also referred to as "conveying spiral") and collected.
上述のトナーは、画像形成装置のような高温高湿下で
搬送スパイラルによって搬送される際、該搬送スパイラ
ルの羽根の間に付着し、固まってしまう。このような状
態の搬送スパイラルでは搬送能力が低下する。さらにト
ナーの堆積が進むとトナーが感光体表面に再付着し、ク
リーニング不良による画像欠陥等が生じることがある。
前記搬送スパイラルのトナーの固まりを掻きくずす手段
として、例えば特開昭64−7088号では、前記搬送スパイ
ラルの羽根に下部から弾性材料の振動部材を当てて連動
させ、その円周上を左右に振動させて、該搬送部材に付
着したトナーを除去している。When the above-described toner is conveyed by a conveying spiral under high temperature and high humidity as in an image forming apparatus, the toner adheres between the blades of the conveying spiral and hardens. In the transport spiral in such a state, the transport capacity is reduced. Further, as the toner accumulation progresses, the toner may re-adhere to the surface of the photoreceptor, and image defects or the like due to poor cleaning may occur.
As means for scraping off the toner mass of the transport spiral, for example, in JP-A-64-7088, a vibrating member made of an elastic material is applied to a blade of the transport spiral from below to interlock, and vibrates left and right on the circumference thereof. Thus, the toner adhered to the conveying member is removed.
発明が解決しようとする課題 しかしながら、上述のような構成においては、振動部
材と搬送スパイラルの羽根の接触面積が小さいため、付
着したトナーの固まりを半分程度しか除去できないこと
になる。そのため搬送スパイラルのトナー搬送能力はあ
る程度までしか回復せず、クリーニング不良は継続して
いた。However, in the above-described configuration, the contact area between the vibration member and the blade of the transport spiral is small, so that only about half of the lump of the adhered toner can be removed. Therefore, the toner conveying ability of the conveying spiral is restored only to a certain extent, and the defective cleaning has been continued.
本発明はこのような欠点を解決し、ブレードによって
掻き落とされたトナーを回収容器まで搬送するとき、搬
送スパイラルに付着してクリーニング不良の原因となる
トナーの固まりの大部分を除去することができるクリー
ニング装置を提供することを目的とする。The present invention solves such a drawback, and when transferring toner scraped off by a blade to a collection container, it is possible to remove most of the toner mass that adheres to the transfer spiral and causes cleaning failure. It is an object to provide a cleaning device.
課題を解決するための手段 上記目的を達成するため、本発明では、感光体の表面
の残留トナーを掻き落とすための弾性部材と、前記弾性
部材によって掻き落とされたトナーを回収容器まで搬送
する螺旋状の羽根を有する搬送部材と、櫛歯状で前記搬
送部材の回転方向に順方向の向きに当接するように設置
され、前記羽根に連動して振動し、前記搬送部材に付着
したトナーの固まりを掻きくずす弾性材料の第１振動部
材と、櫛歯状で、前記搬送部材の回転方向に逆方向の向
きに当接するように設置され、前記羽根に連動して振動
し、前記搬送部材に付着したトナーの固まりを掻きくず
す弾性材料の第２振動部材とを有する構成となってい
る。Means for Solving the Problems To achieve the above object, according to the present invention, there is provided an elastic member for scraping off residual toner on the surface of a photoconductor, and a spiral for conveying the toner scraped off by the elastic member to a collection container. A transport member having blade-like blades, and a comb-shaped set of toner adhered to the transport member, vibrated in conjunction with the blades and arranged in contact with the transport member in a forward direction of rotation. A first vibrating member made of an elastic material that scrapes off and is installed in a comb-like shape so as to abut in a direction opposite to the rotation direction of the conveying member, vibrates in conjunction with the blades, and adheres to the conveying member. And a second vibrating member made of an elastic material that scrapes the collected toner.
作 用 このような構成によると、搬送スパイラルに付着した
トナーの固まりは、前記搬送スパイラルの回転方向に対
し順方向及び逆方向から、スパイラルの羽根に連動する
２つの振動部材に掻きくずされるため効率よく除去され
る。According to such a configuration, the lump of toner adhered to the transport spiral is scraped by the two vibrating members interlocking with the spiral blade from the forward and reverse directions with respect to the rotational direction of the transport spiral. Well removed.
実施例 以下、本発明の実施例を図面を参照しつつ説明する。
第４図は本発明を実施したディジタル複写機の構成を模
式的に示したものである。同図において複写機本体１の
上方に設けられたコンタクトガラス２に原稿３を載置す
る。コンタクトガラス２の下方には露光ランプ４が設け
られており、この露光ランプ４は図外の搬送手段により
コンタクトガラス２上の原稿を照射する。原稿を照射し
た光は結像レンズ５を介してCCD6に導かれ、ここで電気
信号に変換された後、画像処理回路７で画像データとし
て処理される。画像処理回路７の出力は露光用LEDヘッ
ド10に導かれ感光体ドラム８の表面を露光する。感光体
ドラム８の周辺には、この回転方向に沿って帯電部９、
前記露光用LEDヘッド10、現像ローラ11、転写部12、分
離部13、クリーニング装置14、除電部15がこの順序で設
けられている。クリーニング装置14は、前記現像ローラ
11によって前記感光体ドラム８の表面に電着されたトナ
ーを前記転写部12で記録紙に転写した後、前記感光体ド
ラム８に残ったトナーを除去し、次の複写動作の際に残
留トナーによる画像欠陥が生じる等の悪影響が出ないよ
うにするために設けられている。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 4 schematically shows the configuration of a digital copying machine embodying the present invention. In FIG. 1, an original 3 is placed on a contact glass 2 provided above a copying machine main body 1. An exposure lamp 4 is provided below the contact glass 2, and the exposure lamp 4 irradiates an original on the contact glass 2 by a transporting means (not shown). The light illuminating the original is guided to the CCD 6 via the imaging lens 5, where it is converted into an electric signal, and then processed as image data by the image processing circuit 7. The output of the image processing circuit 7 is led to the exposure LED head 10 to expose the surface of the photosensitive drum 8. Around the photosensitive drum 8, a charging unit 9 is provided along the rotation direction.
The exposure LED head 10, the developing roller 11, the transfer unit 12, the separation unit 13, the cleaning device 14, and the charge removing unit 15 are provided in this order. The cleaning device 14 includes the developing roller
After transferring the toner electrodeposited on the surface of the photosensitive drum 8 to the recording paper by the transfer unit 12, the toner remaining on the photosensitive drum 8 is removed. This is provided in order to prevent adverse effects such as the occurrence of image defects due to the above.
第１図にクリーニング装置の断面図を示す。硬質ゴム
等の材料で形成されたブレード16は、ブレード支点軸17
に支えられて感光体ドラム８に圧接している。前記ブレ
ード16によって感光体ドラム８の表面から掻き落とされ
たトナー（図示せず）は、その中心軸が前記感光体ドラ
ム８の軸と同方向で螺旋（スパイラル）状の羽根を有す
る搬送スパイラル18まで達し、該搬送スパイラル18の回
転により図外の回収容器まで搬送され回収される。振動
部材19の一部は、クリーニング装置のハウジング21の内
壁に固定され、搬送スパイラル18の回転によって羽根18
a（第２図参照）の高さに相当する振幅で上下動するこ
とで（第１図中点線の位置は羽根の上に乗り上げたと
き）、搬送スパイラル18の羽根の間のトナーの固まりを
掻きくずす。さらに前記振動部材19は、その先端が感光
体ドラム８の表面のＡ点とＢ点の間を往復し、前記感光
体ドラム８上のトナーの固まりを掻きくずす。また、振
動部材20の一部は、ブレード支点軸17の壁に固定され、
前記振動部材19と同様に搬送スパイラル18の羽根に連動
した動きをして、前記振動部材19では除去できない、搬
送スパイラル18の羽根の間のトナーを掻きくずす。第２
図に、感光体ドラム８の長手方向に沿って見た搬送スパ
イラル18と、該搬送スパイラル18に連動する２つの振動
部材19及び20を示す。搬送スパイラル18には、その中心
軸に対して両方の向きから振動部材19、20が当接してい
るので、羽根の間に付着したトナーが確実に除去でき
る。FIG. 1 shows a sectional view of the cleaning device. The blade 16 formed of a material such as hard rubber is
And is pressed against the photosensitive drum 8. The toner (not shown) scraped off from the surface of the photoconductor drum 8 by the blade 16 has a conveying axis 18 having spiral blades whose center axis is in the same direction as the axis of the photoconductor drum 8. And is conveyed to a collection container (not shown) by the rotation of the conveyance spiral 18 and collected. A part of the vibration member 19 is fixed to the inner wall of the housing 21 of the cleaning device, and the blade 18
By moving up and down with an amplitude corresponding to the height of a (see FIG. 2) (the position indicated by the dotted line in FIG. 1 is when the vehicle rides on the blade), the mass of toner between the blades of the transport spiral 18 is reduced. Scratches. Further, the tip end of the vibrating member 19 reciprocates between points A and B on the surface of the photosensitive drum 8 to scrape off the toner mass on the photosensitive drum 8. Also, a part of the vibration member 20 is fixed to the wall of the blade fulcrum shaft 17,
Similarly to the vibrating member 19, the moving member 18 moves in conjunction with the blades of the transport spiral 18 to scrape off toner between the blades of the transport spiral 18 that cannot be removed by the vibrating member 19. Second
The figure shows a transport spiral 18 viewed along the longitudinal direction of the photosensitive drum 8 and two vibrating members 19 and 20 interlocked with the transport spiral 18. Since the vibrating members 19 and 20 are in contact with the conveying spiral 18 from both directions with respect to the center axis, the toner adhered between the blades can be reliably removed.
第３図に、搬送スパイラル18の中心軸18aと振動部材1
9、20の平面図を示す。振動部材19は、感光体ドラム８
の表面に当接できるようにまっすぐ伸び、振動部材20
は、前記振動部材19の歯の下に入り込めるように斜めに
伸びるという構造になっている。FIG. 3 shows the center axis 18a of the conveying spiral 18 and the vibrating member 1
9 and 20 are plan views. The vibration member 19 includes the photosensitive drum 8
The vibrating member 20 extends straight so that it can contact the surface of the
Has a structure that extends obliquely so as to be able to enter below the teeth of the vibrating member 19.
発明の効果 以上説明した通り、本発明によれば、弾性部材によっ
て感光体表面より掻き落とされたトナーを螺旋状の羽根
を有する搬送部材で搬送する際、前記搬送部材の羽根の
間に堆積し固まるトナーを、搬送部材の羽根に連動させ
た、向きの異なった２つの振動部材で容易に掻きくずす
ことができる。その結果、掻き落とされたトナーの搬送
及び回収が円滑に行なわれ、クリーニング不良によって
形成画像に汚れや欠陥が生じることがない。Effects of the Invention As described above, according to the present invention, when the toner scraped off from the photoreceptor surface by the elastic member is transported by the transporting member having the spiral blade, the toner is accumulated between the blades of the transporting member. The solidified toner can be easily scraped off by two vibrating members having different directions, interlocked with the blades of the conveying member. As a result, the scraped-off toner is smoothly transported and collected, and the formed image is not stained or defective due to poor cleaning.
さらに、第１、第２振動部材のうちの１つを感光体表
面に当接して設置すれば、弾性部材によって掻き落とさ
れ、搬送部材まで達せず前記感光体表面上で堆積したト
ナーも掻きくずすことができるという効果も期待でき
る。Furthermore, if one of the first and second vibrating members is placed in contact with the surface of the photoconductor, the toner is scraped off by the elastic member, and does not reach the conveying member, but also the toner accumulated on the surface of the photoconductor. We can expect the effect that we can do it.
第１図は本発明を実施したクリーニング装置の断面図、
第２図は搬送スパイラルと２つの振動部材の連動を示す
図、第３図は２つの振動部材の平面図、第４図はディジ
タル複写機の模式図である。 ８……感光体ドラム、14……クリーニング装置、 16……ブレード、17……ブレード支点軸、 18……搬送スパイラル、19、20……振動部材、 21……ハウジング。FIG. 1 is a sectional view of a cleaning device embodying the present invention,
FIG. 2 is a diagram showing the interlocking of the conveying spiral and the two vibrating members, FIG. 3 is a plan view of the two vibrating members, and FIG. 4 is a schematic diagram of a digital copying machine. 8 photosensitive drum, 14 cleaning device, 16 blade, 17 blade fulcrum shaft, 18 conveying spiral, 19, 20 vibrating member, 21 housing.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) G03G 21/10 - 21/12 B65G 33/00 - 33/38 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) G03G 21/10-21/12 B65G 33/00-33/38
Claims (2)
めの弾性部材と、 前記弾性部材によって掻き落とされたトナーを回収容器
まで搬送する螺旋状の羽根を有する搬送部材と、 櫛歯状で前記搬送部材の回転方向に順方向の向きに当接
するように設置され、前記羽根に連動して振動し、前記
搬送部材に付着したトナーの固まりを掻きくずす弾性材
料の第１振動部材と、 櫛歯状で、前記搬送部材の回転方向に逆方向の向きに当
接するように設置され、前記羽根に連動して振動し、前
記搬送部材に付着したトナーの固まりを掻きくずす弾性
材料の第２振動部材と、 を有することを特徴とするクリーニング装置。An elastic member for scraping off residual toner on the surface of the photoreceptor; a conveying member having spiral blades for conveying the toner scraped off by the elastic member to a collection container; A first vibrating member made of an elastic material, which is provided so as to abut in a forward direction with respect to the rotation direction of the conveying member, vibrates in conjunction with the blades, and scrapes off a mass of toner attached to the conveying member; A second vibration of an elastic material, which is toothed and is installed so as to abut in a direction opposite to the rotation direction of the conveyance member, vibrates in conjunction with the blades, and scrapes off a mass of toner attached to the conveyance member. A cleaning device, comprising: a member;
が、前記感光体表面に近接し、前記弾性部材によって掻
き落とされた残留トナーの前記感光体表面上の堆積を掻
きくずすことを特徴とする第１請求項に記載のクリーニ
ング装置。2. An end of one of the first and second vibrating members being close to the surface of the photoconductor, scraping off the accumulation of residual toner scraped off by the elastic member on the surface of the photoconductor. The cleaning device according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30185490A JP2921966B2 (en) | 1990-11-06 | 1990-11-06 | Cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30185490A JP2921966B2 (en) | 1990-11-06 | 1990-11-06 | Cleaning equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04172484A JPH04172484A (en) | 1992-06-19 |
| JP2921966B2 true JP2921966B2 (en) | 1999-07-19 |
Family
ID=17901962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30185490A Expired - Lifetime JP2921966B2 (en) | 1990-11-06 | 1990-11-06 | Cleaning equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2921966B2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4856516B2 (en) * | 2006-10-26 | 2012-01-18 | 京セラミタ株式会社 | Cleaning device and image forming apparatus |
| JP5042777B2 (en) * | 2007-10-31 | 2012-10-03 | シャープ株式会社 | Cleaning device |
| JP5294906B2 (en) * | 2009-01-29 | 2013-09-18 | キヤノン株式会社 | Toner recovery device |
| JP5278063B2 (en) * | 2009-03-16 | 2013-09-04 | 富士ゼロックス株式会社 | Developer transport device and image forming apparatus |
| JP5409659B2 (en) * | 2011-01-20 | 2014-02-05 | 京セラドキュメントソリューションズ株式会社 | Cleaning device and image forming apparatus equipped with the same |
| JP6432555B2 (en) * | 2016-04-06 | 2018-12-05 | 京セラドキュメントソリューションズ株式会社 | Cleaning device and image forming apparatus having the same |
| JP6493307B2 (en) * | 2016-05-31 | 2019-04-03 | 京セラドキュメントソリューションズ株式会社 | Cleaning device and image forming apparatus |
| US20230408953A1 (en) * | 2020-10-12 | 2023-12-21 | Kyocera Document Solutions Inc. | Toner conveying device, and cleaning device and image forming apparatus provided therewith |
| JP2022098107A (en) * | 2020-12-21 | 2022-07-01 | 京セラドキュメントソリューションズ株式会社 | Toner transfer device, cleaning device and image forming device |
| JP2022098108A (en) * | 2020-12-21 | 2022-07-01 | 京セラドキュメントソリューションズ株式会社 | Toner transfer device, cleaning device and image forming device |
| JP2022150541A (en) | 2021-03-26 | 2022-10-07 | 京セラドキュメントソリューションズ株式会社 | Cleaning device and image forming apparatus including the same |
-
1990
- 1990-11-06 JP JP30185490A patent/JP2921966B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04172484A (en) | 1992-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2921966B2 (en) | Cleaning equipment | |
| JPS58215678A (en) | Picture formation device | |
| JPS60144783A (en) | Cleaning device | |
| JPH0326839B2 (en) | ||
| JP3231486B2 (en) | Cleaning equipment | |
| JPH07181855A (en) | Lubrication method of toner-removal roll | |
| JP2935737B2 (en) | Cleaning equipment | |
| JP3199614B2 (en) | Residual toner recovery device | |
| JP2675445B2 (en) | Cleaning equipment for electrophotographic equipment | |
| JP2000003118A (en) | Photoreceptor cleaning device and method therefor | |
| JPS62144191A (en) | Toner recovery device | |
| JPS6083068A (en) | Structure of residual developer recovering device in electrophotographic copying machine | |
| JP4136767B2 (en) | Cleaning device | |
| JP4139057B2 (en) | Toner scattering prevention device and image forming apparatus | |
| JPH0328450Y2 (en) | ||
| JPS59214872A (en) | Cleaning method of electrostatic charge holding member of copying machine | |
| JP3221745B2 (en) | Cleaning device in image forming apparatus | |
| JP4276875B2 (en) | Cleaning device | |
| JP2002091253A (en) | Cleaning device for image forming device | |
| JP2004354683A (en) | Cleaning apparatus | |
| JPH0273287A (en) | Cleaning device | |
| JPH0750344B2 (en) | Electrophotographic printer | |
| JPH0430031B2 (en) | ||
| JPH07140869A (en) | Image forming device | |
| JPH05134586A (en) | Cleaning device for image forming device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080430 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090430 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090430 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100430 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100430 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110430 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110430 Year of fee payment: 12 |