JPH0328450Y2 - - Google Patents
Info
- Publication number
- JPH0328450Y2 JPH0328450Y2 JP1982104506U JP10450682U JPH0328450Y2 JP H0328450 Y2 JPH0328450 Y2 JP H0328450Y2 JP 1982104506 U JP1982104506 U JP 1982104506U JP 10450682 U JP10450682 U JP 10450682U JP H0328450 Y2 JPH0328450 Y2 JP H0328450Y2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- photosensitive drum
- elastic body
- cleaning blade
- recovery device
- 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
- 238000011084 recovery Methods 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 19
- 238000007790 scraping Methods 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は電子写真装置のトナー回収装置に関
し、特に、回収トナーの堆積防止に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a toner recovery device for an electrophotographic apparatus, and particularly relates to prevention of accumulation of recovered toner.
電子写真装置は、帯電した感光ドラムを露光し
て潜像を形成する手段と、該潜像を現像してトナ
ー像を得る手段と、感光ドラム上のトナー像を記
録用紙に転写する手段と、トナー像が転写された
後の感光ドラム上に残存する残存トナーをクリー
ニングして回収するトナー回収装置とを備え、該
トナー回収装置は前記感光ドラム表面に当接され
て感光ドラム表面のトナーをかき落すクリーニン
グブレードと、該クリーニングブレードがかき落
されるトナーを取り込むように該クリーニングブ
レードに沿つて開口する開口部を有するトナー回
収管と、前記トナー回収管内に設けられ前記開口
部から取り込んだトナーを回転によつて軸方向に
搬送する螺旋軸とを備える。
An electrophotographic apparatus includes a means for exposing a charged photosensitive drum to form a latent image, a means for developing the latent image to obtain a toner image, and a means for transferring the toner image on the photosensitive drum onto recording paper. a toner recovery device that cleans and recovers residual toner remaining on the photosensitive drum after the toner image has been transferred; a cleaning blade that scrapes off the toner; a toner collection pipe that opens along the cleaning blade so as to take in the toner scraped off by the cleaning blade; and a helical shaft that is conveyed in the axial direction by rotation.
このような従来のトナー回収装置は、これを長
時間運転すると、トナー回収管の開口部にトナー
が堆積して前記螺旋軸によつては搬送できなくな
り、この堆積したトナーが感光ドラムに接触して
該感光ドラム表面を汚したり、あるいは機内にこ
ぼれて機内を汚す問題があつた。
When such a conventional toner recovery device is operated for a long time, toner accumulates at the opening of the toner recovery tube and cannot be conveyed by the spiral shaft, and this accumulated toner comes into contact with the photosensitive drum. This has caused problems such as staining the surface of the photosensitive drum or spilling into the inside of the machine.
本考案の目的は、クリーニングブレードによつ
て感光ドラム表面からかき落したトナーがトナー
回収管の開口部に堆積するのを防止することにあ
る。 An object of the present invention is to prevent toner scraped from the surface of a photosensitive drum by a cleaning blade from accumulating at the opening of a toner collection tube.
本考案は、帯電した感光ドラムを露光して潜像
を形成する手段と、該潜像を現像してトナー像を
得る手段と、感光ドラム上のトナー像を記録用紙
に転写する手段と、トナー像が転写された後の感
光ドラム上に残存する残存トナーをクリーニング
して回収するトナー回収装置とを備え、該トナー
回収装置は前記感光ドラム表面に当接されて感光
ドラム表面のトナーをかき落すクリーニングブレ
ードと、該クリーニングブレードでかき落される
トナーを取り込むように該クリーニングブレード
に沿つて開口する開口部を有するトナー回収管
と、前記トナー回収管内に設けられ前記開口部か
ら取り込んだトナーを回転によつて軸方向に搬送
する螺旋軸とを備えた電子写真装置のトナー回収
装置において、
前記トナー回収管の前記開口部に沿つて軸方向
に線状の弾性体を架設すると共に前記螺旋軸に該
軸の回転によつて前記弾性体に周期的に作用して
該弾性体を絃振動させるレバーを設けたことを特
徴とする。
The present invention includes means for exposing a charged photosensitive drum to form a latent image, means for developing the latent image to obtain a toner image, means for transferring the toner image on the photosensitive drum to recording paper, and a toner image. and a toner recovery device that cleans and recovers residual toner remaining on the photosensitive drum after the image has been transferred, and the toner recovery device is brought into contact with the surface of the photosensitive drum to scrape off the toner on the surface of the photosensitive drum. a cleaning blade; a toner collection tube having an opening that opens along the cleaning blade so as to take in the toner scraped off by the cleaning blade; and a toner collection tube provided within the toner collection tube to rotate the toner taken in from the opening. In the toner recovery device for an electrophotographic apparatus, the toner recovery device includes a helical shaft that is conveyed in the axial direction by a toner recovery tube, in which a linear elastic body is installed in the axial direction along the opening of the toner recovery tube, and a linear elastic body is installed on the helical axis. The present invention is characterized in that a lever is provided which periodically acts on the elastic body to cause the elastic body to vibrate as a string due to the rotation of the shaft.
トナー回収管の開口部で線状の弾性体が周期的
に振動するので、感光ドラム表面からかき落され
て開口部に落下したトナーは該絃振動によつて確
実にトナー回収管内に送り込まれて螺旋軸で搬送
され、該開口部に堆積することがない。
Since a linear elastic body periodically vibrates at the opening of the toner collection tube, the toner scraped off the photosensitive drum surface and falling into the opening is reliably sent into the toner collection tube by the string vibration. It is conveyed by a helical shaft and does not accumulate in the opening.
以下、本考案の一実施例を第１図〜第４図を基
に説明する。第１図は電子写真方式複写機の縦断
側面図を示し、レーザー発光ユニツト１、多面体
ミラーを有する偏向用モートル２、レーザー光を
均一な走査速度で照射するＦ−θレンズ３、ミラ
ーＡ４、感光体ドラム５、帯電器６、現像器７、
トナーホツパー８、給紙カセツト９、記録用紙１
０、給紙ローラー１１、フイードローラー１２、
反転ローラー１３、転写、除電器１４、搬送ロー
ラーＡ１５、搬送ローラーＢ１６、定着ローラー
１７、排紙ローラー１８、トレー１９、イレーズ
ランプ２０、クリーニングブレード２１、トナー
回収管２２、原稿ガラス２３、原稿２４、複写用
ランプ２５、ミラーＢ２６、レンズ２７、ミラー
Ｃ２８より構成され、レーザー発光ユニツト１よ
り発光したレーザー光線は多面体ミラーを有する
偏向用モートル２２で偏向し、Ｆ−θレンズ３で
焦点補正を行ない、ミラー４で感光体ドラム５に
照射される。感光体ドラム５は帯電器６によつて
一様に帯電され、レーザー光線の照射有無により
潜像が形成され、現像器７内に保有されているト
ナーにより現像される。給紙カセツト９より給紙
された記録用紙１０は、フイードローラー１２、
反転ローラー１３を通過し、転写器１４でトナー
像が転写される。トナー像が転写された記録用紙
１０は搬送ローラーＡ１５，Ｂ１６を介して定着
ローラー１８で熱定着され、トレー１９に排紙さ
れる。転写を終つた感光体ドラム５には残存トナ
ーが付着している為クリーニングブレード２１を
当接してこれをかき落し、トナー回収管２２に回
収させる。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 shows a longitudinal side view of an electrophotographic copying machine, showing a laser emitting unit 1, a deflection motor 2 having a polygonal mirror, an F-theta lens 3 for irradiating laser light at a uniform scanning speed, a mirror A4, and a photosensitive body drum 5, charger 6, developer 7,
Toner hopper 8, paper cassette 9, recording paper 1
0, paper feed roller 11, feed roller 12,
Reversing roller 13, transfer, static eliminator 14, transport roller A 15, transport roller B 16, fixing roller 17, paper ejection roller 18, tray 19, erase lamp 20, cleaning blade 21, toner collection tube 22, original glass 23, original 24, Consisting of a copying lamp 25, a mirror B 26, a lens 27, and a mirror C 28, the laser beam emitted from the laser emitting unit 1 is deflected by a deflection motor 22 having a polyhedral mirror, the focus is corrected by an F-θ lens 3, and the laser beam is 4, the photoreceptor drum 5 is irradiated with light. The photosensitive drum 5 is uniformly charged by a charger 6, and a latent image is formed depending on whether or not it is irradiated with a laser beam, and is developed with toner held in a developing device 7. The recording paper 10 fed from the paper feed cassette 9 is passed through a feed roller 12,
The toner image passes through a reversing roller 13 and is transferred by a transfer device 14 . The recording paper 10 onto which the toner image has been transferred is thermally fixed by a fixing roller 18 via conveyance rollers A15 and B16, and is discharged onto a tray 19. Since residual toner adheres to the photosensitive drum 5 after the transfer, the cleaning blade 21 is brought into contact with the residual toner to scrape it off and collect it in the toner collection tube 22.
複写の場合は原稿２４に照射された光は、ミラ
ーＢ２６、レンズ２７、ミラーＣ２８を介して感
光体ドラム５に照射される。以下はレーザー光照
射の場合と同原理で複写が行なわれる。 In the case of copying, the light irradiated onto the original 24 is irradiated onto the photosensitive drum 5 via the mirror B26, the lens 27, and the mirror C28. The following copying is performed using the same principle as in the case of laser light irradiation.
第２図は第１図部の部分拡大図を示してい
る。クリーニングブレード２１はブレードサポー
ト２９によつて連結プレート３０にねじ３１で固
定され、連結プレート３０は段付ボルト３２によ
つて、本体支持プレート３３に回動可能に取付け
られている。感光体ドラム５に残存したトナー３
５はクリーニングブレード２１によつてかき落さ
れ、回収管２２の開口部から該管内に回収され
る。回収管２２内には両端をメタル３８に支持さ
れた軸３７が角形断面をもつ円形ばね（右螺旋）
３９を同軸回転する様に固定して設けてあり、落
下したトナーを該螺旋によつて軸方向に搬送す
る。回収管２２と感光体ドラム５間には、感光体
ドラム５と接触する様に薄いフイルムシート３４
を設けトナーが機内に落下しない様にしている。 FIG. 2 shows a partially enlarged view of the FIG. 1 section. The cleaning blade 21 is fixed by a blade support 29 to a connecting plate 30 with screws 31, and the connecting plate 30 is rotatably attached to a main body support plate 33 with stepped bolts 32. Toner 3 remaining on photoreceptor drum 5
5 is scraped off by the cleaning blade 21 and collected into the collection pipe 22 through the opening thereof. Inside the recovery tube 22 is a circular spring (right-handed spiral) whose shaft 37 has a square cross section and whose both ends are supported by metal 38.
39 are fixedly provided so as to rotate coaxially, and the fallen toner is conveyed in the axial direction by the spiral. A thin film sheet 34 is placed between the collection tube 22 and the photosensitive drum 5 so as to be in contact with the photosensitive drum 5.
is installed to prevent toner from falling into the machine.
転写を長期間続けると第２図に示す様に落下し
たトナーが回収管２２の開口部に堆積し、該部か
ら機内にこぼれたり、感光体ドラム５に接触する
為、クリーニングブレード２１のクリーニング効
率が低下しクリーニングされないトナー４０が付
着する為、感光体ドラム５が汚れ、画質が極度に
低下するようになる。 If the transfer continues for a long period of time, as shown in FIG. 2, the fallen toner will accumulate at the opening of the collection tube 22 and spill into the machine or come into contact with the photoreceptor drum 5, reducing the cleaning efficiency of the cleaning blade 21. As a result, the toner 40 that has not been cleaned adheres to the photoreceptor drum 5, causing the photosensitive drum 5 to become dirty and the image quality to be extremely degraded.
第３図は本考案の実施例を示す部部分拡大図
で、トナー堆積の多い回収管２２開口部に線状の
弾性体４１を長手方向に両端固定で架設し、軸３
７にレバー４２を固定して軸３７の回転と共に円
形ばね３９と同軸回転させ、回転毎に線状の弾性
体４１に絃振動を与え、トナーが堆積するのを防
止するようにトナーに流動性を与えている。レバ
ー４２の取付位置はトナーの堆積が最も少ない回
収口部の反対側に設け、トナーによる負荷抵抗を
小さくすると共に絃に倍振動を与える事により、
回収管２２の長手方向に均一に堆積防止を図つた
ものである。軸３７はモートル４３により駆動さ
れる（右回転）。 FIG. 3 is a partially enlarged view showing an embodiment of the present invention, in which a linear elastic body 41 is fixedly installed at both ends in the longitudinal direction at the opening of the collection tube 22 where a large amount of toner is deposited, and a shaft 3
A lever 42 is fixed to the shaft 37 and coaxially rotated with the circular spring 39 as the shaft 37 rotates, giving string vibration to the linear elastic body 41 every time it rotates, thereby imparting fluidity to the toner to prevent the toner from accumulating. is giving. The mounting position of the lever 42 is provided on the opposite side of the collection port where toner is least deposited, and by reducing the load resistance due to toner and giving double vibration to the string,
This is intended to prevent accumulation evenly in the longitudinal direction of the recovery tube 22. The shaft 37 is driven by a motor 43 (clockwise rotation).
以上のように本考案によれば、クリーニングブ
レードによつて感光ドラム表面からかき落された
トナーはトナー回収管の開口部に落下するが、該
開口部には螺旋軸の回転を利用して周期的に作用
するレバーによつて絃振動させられる線状の弾性
体が架設されているので、該開口部に落下したト
ナーはこの絃振動によつてトナー回収管内に送り
込まれて該部に堆積することがなくり、堆積トナ
ーが機内にこぼれたり、感光ドラムを汚したりす
ることがなくなる。
As described above, according to the present invention, the toner scraped off from the surface of the photosensitive drum by the cleaning blade falls into the opening of the toner collection tube, and the opening is periodically filled using the rotation of the helical shaft. Since a linear elastic body is installed that is vibrated by a lever that acts on the string, the toner that has fallen into the opening is sent into the toner recovery pipe by the vibration of the string and deposited there. This eliminates the possibility of accumulated toner spilling into the machine or contaminating the photosensitive drum.
第１図は電子写真装置の縦断側面図、第２図は
第１図の部拡大図、第３図は本考案になるトナ
ー回収装置の拡大図、第４図は第３図のＰ視図で
ある。
１……レーザー発光ユニツト、２……偏向モー
トル、５……感光体ドラム、２１……ブレード、
２２……回収管、３６……トナー、３７……軸、
３９……円形ばね、４１……線状の弾性体、４２
……レバー。
FIG. 1 is a vertical side view of the electrophotographic device, FIG. 2 is an enlarged view of a portion of FIG. 1, FIG. 3 is an enlarged view of the toner recovery device of the present invention, and FIG. It is. DESCRIPTION OF SYMBOLS 1... Laser emitting unit, 2... Deflection motor, 5... Photosensitive drum, 21... Blade,
22...Recovery pipe, 36...Toner, 37...Shaft,
39... Circular spring, 41... Linear elastic body, 42
……lever.
Claims (1)
る手段と、該潜像を現像してトナー像を得る手
段と、感光ドラム上のトナー像を記録用紙に転
写する手段と、トナー像が転写された後の感光
ドラム上に残存する残存トナーをクリーニング
して回収するトナー回収装置とを備え、 該トナー回収装置は前記感光ドラム表面に当
接されて感光ドラム表面のトナーをかき落すク
リーニングブレードと、該クリーニングブレー
ドでかき落されるトナーを取り込むように該ク
リーニングブレードに沿つて開口する開口部を
有するトナー回収管と、前記トナー回収管内に
設けられ前記開口部から取り込んだトナーを回
転によつて軸方向に搬送する螺旋軸とを備えた
電子写真装置のトナー回収装置において 前記トナー回収管の前記開口部に沿つて軸方
向に線状の弾性体を架設すると共に前記螺旋軸
に該軸の回転によつて前記弾性体に周期的に作
用して該弾性体を絃振動させるレバーを設けた
ことを特徴とする電子写真装置のトナー回収装
置。 ２ 実用新案登録請求の範囲第１項において、前
記レバーは前記弾性体に倍振動を起させる位置
に設けたことを特徴とする電子写真装置のトナ
ー回収装置。[Claims for Utility Model Registration] 1. Means for exposing a charged photosensitive drum to form a latent image, means for developing the latent image to obtain a toner image, and transferring the toner image on the photosensitive drum to recording paper. and a toner recovery device for cleaning and recovering residual toner remaining on the photosensitive drum after the toner image has been transferred, the toner recovery device being brought into contact with the photosensitive drum surface and cleaning the photosensitive drum surface. a cleaning blade for scraping off the toner; a toner recovery pipe having an opening opening along the cleaning blade to take in the toner scraped off by the cleaning blade; In a toner recovery device for an electrophotographic apparatus including a helical shaft that rotates and conveys captured toner in the axial direction, a linear elastic body is installed in the axial direction along the opening of the toner recovery tube, and A toner recovery device for an electrophotographic apparatus, characterized in that the helical shaft is provided with a lever that periodically acts on the elastic body to vibrate the elastic body by rotating the helical shaft. 2 Utility Model Registration The toner collection device for an electrophotographic apparatus according to claim 1, wherein the lever is provided at a position that causes the elastic body to generate double vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10450682U JPS599372U (en) | 1982-07-12 | 1982-07-12 | Toner recovery device for electrophotographic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10450682U JPS599372U (en) | 1982-07-12 | 1982-07-12 | Toner recovery device for electrophotographic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS599372U JPS599372U (en) | 1984-01-21 |
| JPH0328450Y2 true JPH0328450Y2 (en) | 1991-06-19 |
Family
ID=30245362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10450682U Granted JPS599372U (en) | 1982-07-12 | 1982-07-12 | Toner recovery device for electrophotographic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599372U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727483Y2 (en) * | 1987-01-23 | 1995-06-21 | ミノルタ株式会社 | Copier toner recovery device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56165180A (en) * | 1980-05-26 | 1981-12-18 | Canon Inc | Toner regenerating device |
-
1982
- 1982-07-12 JP JP10450682U patent/JPS599372U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56165180A (en) * | 1980-05-26 | 1981-12-18 | Canon Inc | Toner regenerating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS599372U (en) | 1984-01-21 |
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