JPH02298982A - Recovery device - Google Patents
Recovery deviceInfo
- Publication number
- JPH02298982A JPH02298982A JP11970289A JP11970289A JPH02298982A JP H02298982 A JPH02298982 A JP H02298982A JP 11970289 A JP11970289 A JP 11970289A JP 11970289 A JP11970289 A JP 11970289A JP H02298982 A JPH02298982 A JP H02298982A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- partition plate
- detection means
- collection
- collected
- 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
Links
- 238000011084 recovery Methods 0.000 title abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 238000005192 partition Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 238000007639 printing Methods 0.000 description 7
- 108091008695 photoreceptors Proteins 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Cleaning In Electrography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電子写真プロセスを用いた印刷装置に関し特に
は像担持体上の残留トナーの清掃、回収に係わるもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a printing apparatus using an electrophotographic process, and particularly relates to cleaning and recovery of residual toner on an image carrier.
従来この種の回収装置においてはクリーニング手段によ
り像担持体により清掃したトナーを送り手段を用いて回
収容器へ送る構成となっており、さらに回収容器内にト
ナーが所定量溜まると検知手段によりトナーの満パイ検
知をする構成となっていた。Conventionally, this type of recovery device has a configuration in which the toner cleaned by the image carrier by a cleaning device is sent to a recovery container using a feeding device, and when a predetermined amount of toner accumulates in the recovery container, a detection device detects the amount of toner. It was configured to detect fullness.
しかし従来の技術では記録紙の印字可能幅において部分
的に片寄った高密度の印字等をした場合には回収容器内
のトナーも均一に回収されずに片寄った状態で回収され
てしまい、特に検知手段部に片寄った場合には回収容器
内に十分に空間が残っている状態であっても検知手段が
動作してしまい非常に容積効率が悪いという問題があっ
た。また検知手段部以外にトナーが片寄った場合には検
知手段が動作しないことがあるという大きな問題点があ
った。However, with conventional technology, when high-density printing is performed that is partially offset in the printable width of the recording paper, the toner in the collection container is not collected evenly, but is collected in an offset state, especially when the detection When the detection means is biased towards the means part, the detection means operates even if there is sufficient space left in the collection container, resulting in a problem of extremely poor volumetric efficiency. Furthermore, there is a major problem in that the detection means may not operate if the toner is concentrated in areas other than the detection means.
そこで本発明はこのような問題点を解決するものであっ
てその目的は記録紙の印字可能幅において部分的に片寄
った高密度の印字等を行なっても検知手段の異常動作や
動作不良のない回収装置を提供することによる。Therefore, the present invention is intended to solve these problems, and its purpose is to prevent abnormal operation or malfunction of the detection means even when high-density printing is performed that is partially offset in the printable width of recording paper. By providing collection equipment.
上記問題点を解決するために本発明は像担持体に当接す
るクリーニング手段と、前記クリーニング手段に近設さ
れ回転する送り手段とトナーの回収容器と前記回収容器
に配設されたトナー量を検知するための検知手段と前記
検知手段に係合して配設された仕切板とにより構成され
てなることを特徴とし、さらに前記仕切板が前記検知手
段に対して傾斜面を有することを特徴とする。In order to solve the above problems, the present invention provides a cleaning means that comes into contact with an image carrier, a rotating feeding means that is disposed near the cleaning means, a toner collection container, and a toner amount detecting device disposed in the collection container. and a partition plate disposed to engage with the detection means, and further characterized in that the partition plate has an inclined surface with respect to the detection means. do.
本発明の上記の構成によれば像担持体上よりクリーニン
グ手段によって清掃されたトナーは送り手段により回収
容器へ送られ回収されるのであるが、検知手段部にトナ
ーの回収が片寄った場合には仕切板によってトナーの移
動力が直接検知手段を動作しないようになりトナーは仕
切板を迂回した後検知手段を動作することができるため
回収容器内にほぼ満パイにトナーを回収することができ
る。また検知手段部以外にトナーの回収が片寄った場合
においては検知手段部以外にトナーが満パイになった後
トナーは検知手段方向に移動するのであるがその際仕切
板の傾斜面に沿ってトナーの移動力が検知手段方向に変
えられ検知手段を動作することができるものである。According to the above structure of the present invention, the toner cleaned by the cleaning means from the top of the image carrier is sent to the collection container by the feeding means and collected. The partition plate prevents the moving force of the toner from directly operating the detection means, and the toner can bypass the partition plate and then operate the detection means, so that the toner can be collected into the collection container almost completely. In addition, when toner is collected unevenly in areas other than the detection means, the toner moves toward the detection means after the toner becomes full in areas other than the detection means. The moving force of the sensor can be changed in the direction of the detection means to operate the detection means.
本発明を図面にもとづき説明すると第1図は本発明の印
刷装置の主要断面図であって電子写真プロセスを用いて
おり記録紙1は給紙トレイ2により給紙ローラ3により
レジストローラ4に供給される。さらにレジストローラ
4より像担持体である感光体ドラム5、熱定着装置6、
排紙ローラ7.8へと順次搬送される。この際において
書き込みヘッドであるレーザヘッド9により文字等の情
報が感光体ドラム5上に光学的に静電潜像として書き込
まれる。次に前述の感光体ドラム5上の書き込み部への
現像装置10よりトナーが付着することにより静電潜像
が可視化されさらに転写装置11により記録紙1上に前
記トナーが顕画像として転写される。さらに記録紙1上
のトナー像は熱定着装置6により熱溶融定着され印刷動
作を終了するものである。この際において感光体ドラム
5上より全てのトナーが記録紙1上へ転写されるのでは
なく微量のトナーが感光体ドラム5上に残留してしまう
ため残留トナーを清掃し回収する回収装置を配設するこ
とが一般的であり本実施例においては12が回収装置と
なっている。To explain the present invention based on the drawings, FIG. 1 is a main sectional view of a printing apparatus according to the present invention, which uses an electrophotographic process, in which recording paper 1 is fed from a paper feed tray 2 to a registration roller 4 by a paper feed roller 3. be done. Further, from the registration roller 4, a photoreceptor drum 5, which is an image carrier, a heat fixing device 6,
The sheets are sequentially conveyed to a discharge roller 7.8. At this time, information such as characters is optically written as an electrostatic latent image on the photosensitive drum 5 by a laser head 9 serving as a writing head. Next, toner adheres from the developing device 10 to the writing area on the photosensitive drum 5, making the electrostatic latent image visible, and the toner is further transferred onto the recording paper 1 as a visible image by the transfer device 11. . Furthermore, the toner image on the recording paper 1 is thermally fused and fixed by a thermal fixing device 6, thereby completing the printing operation. At this time, not all the toner from the photoreceptor drum 5 is transferred onto the recording paper 1, but a small amount of toner remains on the photoreceptor drum 5, so a collection device is installed to clean and collect the remaining toner. In this embodiment, reference numeral 12 is a collection device.
第2図は回収装置12の断面図であって13は感光体ド
ラム5に当接し感光体ドラム5上の残留トナーの清掃を
するための弾性部材よりなるクリーニング手段、14は
異形断面形状を有する送り手段であって矢印a方向に回
転する。15は回収容器、16は仕切板、17は回収さ
れたトナーが回収容器にほぼ満パイになったことを検知
するための検知部材であってフォトイジタラブタ18と
供に検知手段を構成している。19.20はシール部材
である。FIG. 2 is a cross-sectional view of the collection device 12, in which 13 is a cleaning means made of an elastic member that comes into contact with the photoreceptor drum 5 to clean residual toner on the photoreceptor drum 5, and 14 has an irregular cross-sectional shape. It is a feeding means and rotates in the direction of arrow a. Reference numeral 15 denotes a collection container, 16 a partition plate, and 17 a detection member for detecting when the collection container is almost full of collected toner, which constitutes a detection means together with the photodigital adapter 18. ing. 19.20 is a sealing member.
次にトナーの動きを説明するとクリーニング手段13に
より感光体ドラム5上より清掃されたトナーは送り手段
14の矢印a方向の回転により矢印す方向へ送られた後
、矢印C方向へと順次送られるが、この際印字片寄りが
あった場合においては回収容器15内に回収されるトナ
ーは送り手段14による送り方向が一定方向であるため
回収容器15内においても片寄った状態で回収される。Next, to explain the movement of the toner, the toner cleaned from the top of the photoreceptor drum 5 by the cleaning means 13 is sent in the direction indicated by the arrow A by the rotation of the feeding means 14 in the direction of the arrow a, and then sequentially in the direction of the arrow C. However, if there is uneven printing at this time, the toner collected in the collection container 15 is also collected in a lopsided state in the collection container 15 because the feeding direction by the feeding means 14 is a constant direction.
第3図に示するように回収されたトナーの片寄りが矢印
d部分である場合にはトナーは仕切板16によって矢印
d方向の動きが抑さえられ矢印e1f方向に廻り込み検
知部材17をフォトインタラプタ18方向に押し上げる
。またこの際トナーは矢印gSh方向にも動くことにな
り回収容器15内に十分溝たされることになる。さらに
矢印i部分に回収されるトナーが片寄った場合において
はトナーは矢印jSk方向に順次送られた後、仕切板1
6の傾斜面に沿って矢印g方向に動き最後には検知手段
17をフォトインタラプタ18方向に押し上げることに
なる。As shown in FIG. 3, when the collected toner is offset in the direction of the arrow d, the movement of the toner in the direction of the arrow d is suppressed by the partition plate 16, and the toner goes around in the direction of the arrow e1f, causing the detection member 17 to be exposed to the photo. Push up towards the interrupter 18. At this time, the toner also moves in the direction of the arrow gSh, so that it is sufficiently grooved in the collection container 15. Furthermore, if the toner collected is unevenly distributed in the direction of the arrow i, the toner is sent sequentially in the direction of the arrow jSk, and then the toner is transferred to the partition plate 1.
It moves in the direction of arrow g along the inclined surface 6, and finally pushes up the detection means 17 toward the photointerrupter 18.
尚、本実施例で用いた仕切板16の傾斜面は第3図中の
θ度を90度としたが、60度〜120度の範囲でも良
好の結果を得ることができた。本実施例においては上記
θ度が60度以下の場合においては第3図中矢印d部分
にトナー回収が片寄った場合、矢印g、h方向へのトナ
ーの動きに対して矢印eS f方向の動きが大きく回収
容器15内に十分溝される前に検知部材17が動作して
しまい容積効率が悪く、所望のが得られなかった。Although the inclined surface of the partition plate 16 used in this example had the θ degree of 90 degrees in FIG. 3, good results could be obtained even with the θ degree in the range of 60 degrees to 120 degrees. In this embodiment, when the above-mentioned θ degree is 60 degrees or less, if the toner collection is biased toward the arrow d portion in FIG. The detection member 17 operated before the groove was sufficiently large in the collection container 15, resulting in poor volumetric efficiency and the desired amount could not be obtained.
またθ度が150度以上の場合においては矢印i部分に
トナーの回収が片寄った場合に矢印に方向のトナーの動
きが十分に矢印g方向に変換されることができず検知部
材17が動作不良を起す場合があり所望の仕切板16傾
斜面効果が得れなかった。In addition, when the θ degree is 150 degrees or more, if the toner collection is biased toward the arrow i portion, the movement of toner in the arrow direction cannot be sufficiently converted to the arrow g direction, causing the detection member 17 to malfunction. The desired sloped surface effect of the partition plate 16 could not be obtained.
以上説明したように本発明によれば回収容器15内に回
収されるトナーが回収容器15内において部分的に片寄
って回収されても検知部材17に対して傾斜面を有する
仕切板16を検知部材17の手前に設けることでトナー
回収が片寄っても検知手段の動作不良がなくまた回収容
積効率の良い回収装置を提供できるという大きな効果が
ある。As described above, according to the present invention, even if the toner collected in the collection container 15 is collected in a partially offset manner in the collection container 15, the partition plate 16 having an inclined surface with respect to the detection member 17 is used as the detection member. 17, there is a great effect that even if the toner collection is uneven, there is no malfunction of the detection means, and a collection device with good collection volume efficiency can be provided.
第1図は本発明の回収装置の一実施例を内蔵した印刷装
置の主要断面図。第2図は回収装置12の断面図。第3
図は回収装置12の正面図であってトナーの動きを説明
する図。
5・・・感光体ドラム
12・・・回収装置
13・・・クリーニング手段
14・・・送り手段
15・・・回収容器
16・・・仕切板
17・・・検知部材
18・拳・フオトインタラブタFIG. 1 is a main sectional view of a printing device incorporating an embodiment of the collection device of the present invention. FIG. 2 is a sectional view of the collection device 12. Third
The figure is a front view of the collection device 12 and is a diagram illustrating the movement of toner. 5... Photosensitive drum 12... Recovery device 13... Cleaning means 14... Feeding means 15... Recovery container 16... Partition plate 17... Detection member 18, fist, photointerceptor
Claims (2)
おいて、前記像担持体に当接するクリーニング手段と、
前記クリーニング手段に近設され回転する送り手段と、
トナーの回収容器と、前記回収容器に配設されたトナー
量を検知するための検知手段と、前記検知手段に係合し
て配設された仕切板とにより構成されてなることを特徴
とする回収装置。(1) In a collection device that cleans and collects toner on an image carrier, a cleaning means that comes into contact with the image carrier;
a rotating feeding means disposed near the cleaning means;
The present invention is characterized in that it is composed of a toner collection container, a detection means for detecting the amount of toner disposed in the collection container, and a partition plate disposed to engage with the detection means. Collection device.
ることを特徴とする請求項1記載の回収装置。(2) The collection device according to claim 1, wherein the partition plate has an inclined surface with respect to the detection means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11970289A JPH02298982A (en) | 1989-05-12 | 1989-05-12 | Recovery device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11970289A JPH02298982A (en) | 1989-05-12 | 1989-05-12 | Recovery device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02298982A true JPH02298982A (en) | 1990-12-11 |
Family
ID=14767967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11970289A Pending JPH02298982A (en) | 1989-05-12 | 1989-05-12 | Recovery device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02298982A (en) |
-
1989
- 1989-05-12 JP JP11970289A patent/JPH02298982A/en active Pending
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