JP2630673B2 - Image forming mechanism toner recovery device - Google Patents
Image forming mechanism toner recovery deviceInfo
- Publication number
- JP2630673B2 JP2630673B2 JP2229444A JP22944490A JP2630673B2 JP 2630673 B2 JP2630673 B2 JP 2630673B2 JP 2229444 A JP2229444 A JP 2229444A JP 22944490 A JP22944490 A JP 22944490A JP 2630673 B2 JP2630673 B2 JP 2630673B2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- photoconductor
- collection container
- conveying
- container
- 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
Landscapes
- Cleaning In Electrography (AREA)
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、複写機、レーザープリンタ等の画像形成機
構のトナー回収装置に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a toner collecting device of an image forming mechanism such as a copying machine or a laser printer.
〈従来技術〉 従来の複写機等の画像形成機構のトナー回収装置は、
第６図の如く、感光体１の表面の残留トナーを掻取るた
めのブレード２と、ブレード２で掻取られたトナーを回
収するトナー回収容器３と、トナーをトナー回収容器３
に送り込む断面三角形状の回転ローラ４とからなり、前
記トナー回収容器３は感光体１の長手方向と平行に配置
されている。<Prior art> Conventional toner collecting devices of image forming mechanisms such as copying machines
As shown in FIG. 6, a blade 2 for scraping residual toner on the surface of the photoconductor 1, a toner collecting container 3 for collecting toner scraped by the blade 2, and a toner collecting container 3 for collecting toner
The toner collecting container 3 is disposed in parallel with the longitudinal direction of the photoconductor 1.
〈発明が解決しようとする課題〉 上記従来技術において、回収されるトナー量が多くな
るにつれて、トナーが圧縮されて凝固し、回転ローラ４
にかかる負荷が大きくなり、回転ローラ４の送り込み圧
力が高くなる。そのため、容易にトナー回収容器３にト
ナーが送り込まれなくなつてしまう。<Problems to be Solved by the Invention> In the above-mentioned conventional technology, as the amount of toner collected increases, the toner is compressed and solidified,
Is increased, and the feeding pressure of the rotating roller 4 increases. Therefore, the toner is not easily sent to the toner collecting container 3.
また、トナー回収容器３側にトナーを送ることができ
なくなると、ブレード２側にトナーが逆流してしまい、
十分なトナー回収量が安定して得られないといつた問題
がある。Further, when the toner cannot be sent to the toner collection container 3 side, the toner flows backward to the blade 2 side,
There is a problem that a sufficient amount of collected toner cannot be obtained stably.
そこで、トナーの逆流を防止するため、逆流防止スク
レーパを取付けても、スクレーパから異音が発生しかつ
トナー回収量を安定させることは容易にならない。Therefore, even if a backflow prevention scraper is attached to prevent the backflow of the toner, it is not easy to generate abnormal noise from the scraper and to stabilize the toner collection amount.
本発明は、上記に鑑み、トナーを感光体側に逆流させ
ることなく、安定したトナー回収量を得ることができる
画像形成機構のトナー回収装置の提供を目的とする。SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a toner collecting device of an image forming mechanism capable of obtaining a stable toner collecting amount without causing a toner to flow back to a photoconductor.
〈課題を解決するための手段〉 本発明による課題解決手段は、第１〜３図の如く、感
光体１表面の残留トナー９を掻取るための掻取部材10
と、感光体１の長手方向に平行に配置されたトナー回収
容器11と、該トナー回収容器11と感光体１との間に形成
され前記掻取部材10で掻取られたトナー９を搬送するト
ナー搬送室12とを備え、前記トナー回収容器11とトナー
搬送室12とは感光体１の一端より外側で連通され、前記
トナー搬送室12にトナー９を感光体１の一端側に搬送す
るトナー搬送体13が設けられ、前記トナー回収容器11に
前記トナー搬送体13と搬送方向が逆向きでトナー９をト
ナー回収容器11内の感光体１とは反対側方向、すなわち
奥側に送り込むトナー回収体14が設けられ、トナー回収
体14に、トナー９を感光体１の長手方向に搬送するトナ
ー搬送部23と、トナー９を長手方向に搬送しないでトナ
ー回収容器11内の感光体１とは反対側方向に送り込む送
込部24とが設けられ、トナー搬送方向上流側から順にト
ナー搬送部23、送込部24が交互に配されたものである。
そして、各送込部24の長さがトナー搬送方向下流側に向
かうにつれて短くされている。<Means for Solving the Problems> As shown in FIGS. 1 to 3, a problem solving means according to the present invention includes a scraping member 10 for scraping residual toner 9 on the surface of the photoreceptor 1.
And a toner collection container 11 disposed in parallel with the longitudinal direction of the photoconductor 1, and transports the toner 9 formed between the toner collection container 11 and the photoconductor 1 and scraped by the scraping member 10. A toner transfer chamber 12, wherein the toner collection container 11 and the toner transfer chamber 12 communicate with each other outside one end of the photoconductor 1, and the toner 9 transfers the toner 9 to the toner transfer chamber 12 to one end of the photoconductor 1. A toner carrier is provided in the toner collection container 11, and the toner 9 is sent to the toner collection container 11 in a direction opposite to that of the photoconductor 1 in the toner collection container 11, that is, to the back side. A toner transport unit 23 that transports the toner 9 in the longitudinal direction of the photoconductor 1 and a photoconductor 1 in the toner recovery container 11 that does not transport the toner 9 in the longitudinal direction are provided on the toner recovery body 14. A feeding unit 24 for feeding the toner in the opposite direction is provided; Toner transport unit 23 from the feeding direction upstream to downstream in the mentioned order, in which sending sections 24 are alternately arranged.
Then, the length of each feeding section 24 is shortened toward the downstream side in the toner conveying direction.
他の課題解決手段によると、トナー回収体14とトナー
回収容器11の底面27との間隔は、トナー搬送方向上流側
から下流側に向かつて狭くされたものである。According to another means for solving the problem, the distance between the toner collecting body 14 and the bottom surface 27 of the toner collecting container 11 is narrowed from the upstream side to the downstream side in the toner conveying direction.
〈作 用〉 上記課題解決手段において、感光体１の表面に未転写
で残留したトナー９は、掻取部材10によつてトナー搬送
室12に掻き落とされ、トナー搬送体13により第２図に示
すようにＱ方向へ搬送される。<Operation> In the means for solving the problems described above, the toner 9 remaining on the surface of the photoreceptor 1 without being transferred is scraped off by the scraping member 10 into the toner transfer chamber 12, and the toner transfer member 13 as shown in FIG. The sheet is conveyed in the Q direction as shown.
トナー搬送室12の一端に溜まつたトナー９は、トナー
搬送室12からトナー回収容器11側に押し出され、トナー
回収体14によつてＰ方向に搬送されながら、トナー回収
容器11内の奥側に送り込まれる。The toner 9 accumulated at one end of the toner transfer chamber 12 is pushed out of the toner transfer chamber 12 toward the toner collection container 11 and is conveyed in the P direction by the toner collection body 14 to the inner side of the toner collection container 11. Sent to.
したがつて、回収されるトナー９は感光体１に沿つて
トナー搬送室12を搬送され、感光体１に面していないト
ナー回収体14によりトナー回収容器11内の奥側へ回収さ
れるので、トナー９が感光体１へ逆流することはない。
また、掻き落とされたトナー９と回収されるトナー９と
を分離しているので、トナー回収体14にかかる負荷が少
なくなり、安定したトナー回収量を得ることができる。Accordingly, the collected toner 9 is conveyed through the toner conveying chamber 12 along the photoreceptor 1 and is collected by the toner collecting body 14 not facing the photoreceptor 1 to the inner side of the toner collecting container 11. The toner 9 does not flow back to the photoconductor 1.
Further, since the scraped-off toner 9 and the collected toner 9 are separated, the load on the toner collecting body 14 is reduced, and a stable amount of collected toner can be obtained.
トナー回収容器11内では、トナー回収体14のトナー搬
送部23によつてＰ方向へ搬送されたトナー９は、一部が
トナー回収容器11内の奥側に送り込まれながら最初の送
込部24まで達すると、長手方向へは搬送されずに送込部
24によつて大部分のトナー９がトナー回収容器11内の奥
側に送り込まれる。In the toner collection container 11, the toner 9 conveyed in the P direction by the toner conveyance unit 23 of the toner collection body 14 is partially sent to the inner side of the toner collection container 11 while the first transmission unit 24 is being conveyed. When it reaches to the feeding section without being transported in the longitudinal direction
Most of the toner 9 is sent to the inner side of the toner collecting container 11 by means of 24.
そして、トナー回収容器11とトナー回収体14との間に
溜まつたトナー９は、後からくるトナー９によつてＰ方
向へ押し出され、再びトナー回収体14のトナー搬送部23
によつてトナー９の一部がトナー回収容器11内の奥側に
送り込まれながら、Ｐ方向へ搬送され、次の送込部24ま
で達し、送込部24によりトナー回収容器11内に奥側に送
り込まれる。Then, the toner 9 accumulated between the toner collecting container 11 and the toner collecting body 14 is pushed out in the P direction by the toner 9 that comes later, and is again returned to the toner conveying section 23 of the toner collecting body 14.
As a result, a part of the toner 9 is transported in the P direction while being sent to the far side inside the toner collecting container 11, reaches the next sending unit 24, and is sent into the toner collecting container 11 by the sending unit 24. Sent to.
このようにして、掻取部材10で掻き落とされたトナー
９は、トナー９の搬送方向の下流側から順にトナー回収
容器11に分散して溜まつていくので、トナー９が搬送方
向端部に最初に溜まつてトナー回収体14に負荷を与えて
搬送能力を低下させることなく、最終的には均一にトナ
ー回収容器11にトナー９は回収される。In this way, the toner 9 scraped off by the scraping member 10 is dispersed and accumulated in the toner collecting container 11 in order from the downstream side in the conveying direction of the toner 9, so that the toner 9 is moved to the end in the conveying direction. At first, the toner 9 is uniformly collected in the toner collection container 11 without reducing the conveyance ability by applying a load to the toner collection body 14 at first.
他の課題解決手段によると、トナー回収体14とトナー
回収容器11の底面27との間隔がトナー搬送方向上流側か
ら下流側に向かつて狭くなつているので、搬送方向上流
側では、トナー回収体14の搬送能力は小さくなり、トナ
ー搬送室12から送られてきたトナー９によりトナー回収
容器11へ多く送り込まれる。そのため、トナー９を搬送
方向上流側から順にトナー回収容器11へ回収させること
ができる。According to another means for solving the problem, the distance between the toner collecting body 14 and the bottom surface 27 of the toner collecting container 11 is narrower from the upstream side in the toner conveying direction to the downstream side. The transfer capacity of 14 is reduced, and the toner 9 sent from the toner transfer chamber 12 is largely sent to the toner collection container 11. Therefore, the toner 9 can be sequentially collected in the toner collection container 11 from the upstream side in the transport direction.
〈実 施 例〉 以下、本発明の実施例を図面に基づいて説明する。<Embodiment> Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す画像形成機構のトナ
ー回収装置の縦断面図、第２図は同じく横断面図、第３
図は第２図におけるＡ−Ａ断面図である。FIG. 1 is a longitudinal sectional view of a toner collecting device of an image forming mechanism according to an embodiment of the present invention, FIG.
The figure is a sectional view taken along the line AA in FIG.
本実施例の画像形成機構のトナー回収装置は、図示の
如く、感光体１表面の残留トナー９を掻取るための掻取
部材10と、感光体１の長手方向に平行に配置されたトナ
ー回収容器11と、該トナー回収容器11と感光体１との間
に形成され前記掻取部材10で掻取られたトナー９を搬送
するトナー搬送室12とを備え、前記トナー回収容器11と
トナー搬送室12とは感光体１の一端より外側で連通さ
れ、前記トナー搬送室12にトナー９を感光体１の一端側
に搬送するトナー搬送体13が設けられ、前記トナー回収
容器11に前記トナー搬送体13と搬送方向が逆向きでトナ
ー９をトナー回収容器11内の奥側に送り込むトナー回収
体14が設けられたものである。As shown, the toner collecting device of the image forming mechanism according to the present embodiment includes a scraping member 10 for scraping residual toner 9 on the surface of the photoconductor 1 and a toner collection device arranged in parallel with the longitudinal direction of the photoconductor 1. A container 11 and a toner transfer chamber 12 formed between the toner collecting container 11 and the photoconductor 1 for transferring the toner 9 scraped by the scraping member 10; The toner transport chamber 12 is provided outside the one end of the photoconductor 1 and communicates with the chamber 12. The toner transport chamber 12 is provided with a toner transport body 13 for transporting the toner 9 to one end of the photoconductor 1. A toner collection body 14 is provided in which the toner 9 is transported in a direction opposite to that of the body 13 and sends the toner 9 to the back side inside the toner collection container 11.
前記感光体１とトナー回収容器11とは、カートリツジ
本体15に一体に取付けられて一つのユニツトとされ、所
定の寿命に達した時にユニツトとして一体的に交換され
る。The photoreceptor 1 and the toner collecting container 11 are integrally attached to the cartridge body 15 to form one unit, and when the predetermined life is reached, the unit is exchanged as a unit.
前記掻取部材10は、ウレタンゴム製のブレードで、保
持体16によりカートリツジ本体15の上面に感光体１に当
接するよう取り付けられている。The scraping member 10 is a blade made of urethane rubber, and is attached to the upper surface of the cartridge body 15 by a holding body 16 so as to be in contact with the photoconductor 1.
前記トナー回収容器11は、前記カートリツジ本体15の
感光体１と反対側に形成された一段低くされた空間であ
り、感光体１の一端より外側に突出するよう感光体１よ
り長く形成されている。The toner collecting container 11 is a lower space formed on the opposite side of the cartridge body 15 from the photoconductor 1, and is formed longer than the photoconductor 1 so as to protrude outward from one end of the photoconductor 1. .
そして、トナー回収容器11の感光体１側が内壁17によ
り仕切られて、その感光体１側の空間が前記トナー搬送
室12とされる。The photoreceptor 1 side of the toner collecting container 11 is partitioned by an inner wall 17, and the space on the photoreceptor 1 side is the toner transfer chamber 12.
前記内壁17は、感光体１に対応して形成され、トナー
回収容器11とトナー搬送室12との間で感光体１より外側
に突出した空間には内壁17がなく、トナー回収容器11と
トナー搬送室12とを連通する連通部18とされる。The inner wall 17 is formed so as to correspond to the photoreceptor 1, and there is no inner wall 17 in a space protruding outside the photoreceptor 1 between the toner collection container 11 and the toner transfer chamber 12, and the toner collection container 11 and the toner The communication section 18 communicates with the transfer chamber 12.
前記トナー搬送体13は、カートリツジ本体15に回転自
在に支持された搬送軸20と、該搬送軸20に螺旋状に固定
された螺旋板21とからなる。The toner carrier 13 includes a carrier shaft 20 rotatably supported by the cartridge body 15 and a spiral plate 21 helically fixed to the carrier shaft 20.
前記トナー回収体14は、カートリツジ本体15に前記ト
ナー搬送体13と平行で回転自在に支持された支持軸22
と、トナー９を感光体１の長手方向に搬送するトナー搬
送部23と、トナー９を長手方向に搬送しないでトナー回
収容器11内の奥側に送り込む送込部24とからなり、トナ
ー搬送方向上流側からトナー９を順次回収していくよう
前記トナー搬送部23と送込部24とが交互に配されてい
る。The toner collecting body 14 is supported by a cartridge body 15 in a support shaft 22 that is rotatably supported in parallel with the toner carrying body 13.
A toner transport section 23 for transporting the toner 9 in the longitudinal direction of the photoreceptor 1, and a feeding section 24 for feeding the toner 9 to the far side in the toner collection container 11 without transporting the toner 9 in the longitudinal direction. The toner conveying sections 23 and the feeding sections 24 are alternately arranged so as to sequentially collect the toner 9 from the upstream side.
前記トナー搬送部23は、支持軸22に螺旋状に固定され
た螺旋板からなり、前記送込部24は支持軸22だけの部分
で、そこに半径方向に突出した垂直フイン25が立設され
ている。送込部24の長さは、搬送方向下流側へ向かうに
つれて狭くなつており、搬送方向上流側で多くトナー９
を回収できるようにされている。The toner transport section 23 is formed of a spiral plate fixed spirally to the support shaft 22, and the feeding section 24 is a portion of the support shaft 22 alone, and a vertical fin 25 protruding in the radial direction is erected there. ing. The length of the feeding portion 24 becomes narrower toward the downstream side in the transport direction, and the length of the toner 9 is increased on the upstream side in the transport direction.
Can be collected.
また、トナー回収体14の搬送方向側の端部には、トナ
ー溜まりをなくしてトナー回収体14にかかる負担を減ら
すために逆方向へ搬送するよう螺旋板26が逆向きに固定
されている。Further, a spiral plate 26 is fixed in the opposite direction to the end of the toner collecting body 14 on the conveying direction side so as to convey the toner in the reverse direction in order to eliminate the toner accumulation and reduce the load on the toner collecting body 14.
なお、トナー搬送体13およびトナー回収体14は、図示
しないモータ等の駆動装置により互いに反対方向に回転
駆動される。The toner conveying body 13 and the toner collecting body 14 are driven to rotate in opposite directions by a driving device such as a motor (not shown).
上記構成において、感光体１の表面に未転写で残留し
たトナー９は、掻取部材10によつてトナー搬送室12に掻
き落とされ、トナー搬送体13により第２図に示すように
Ｑ方向へ搬送される。In the above configuration, the toner 9 remaining on the surface of the photoreceptor 1 without being transferred is scraped off by the scraping member 10 into the toner transfer chamber 12, and is moved in the Q direction by the toner transfer body 13 as shown in FIG. Conveyed.
トナー９は、トナー搬送室12の一端の連通部18まで順
次搬送され、連通部18に溜まつてくる。しかし、この連
通部18は、感光体１よりも外側に位置しているため、ト
ナー９が再び感光体１に付着して感光体１に影響を及ぼ
すといつたことはない。The toner 9 is sequentially conveyed to a communication portion 18 at one end of the toner conveyance chamber 12 and accumulates in the communication portion 18. However, since the communication portion 18 is located outside the photoconductor 1, the toner 9 never adheres to the photoconductor 1 again and affects the photoconductor 1.
連通部18に溜まつたトナー９は、トナー搬送室12から
トナー回収容器11側に押し出され、トナー回収体14のト
ナー搬送部23によつてＰ方向へ搬送される。トナー回収
体14の軸方向に沿つて搬送されたトナー９は、一部がト
ナー回収容器11内の奥側に送り込まれながら最初の送込
部24まで達すると、軸方向へは搬送されずに垂直フイン
25によつて大部分のトナー９がトナー回収容器11内の奥
側に送り込まれる。The toner 9 accumulated in the communication section 18 is pushed out of the toner transport chamber 12 toward the toner recovery container 11 and is transported in the P direction by the toner transport section 23 of the toner recovery body 14. When a part of the toner 9 conveyed along the axial direction of the toner collecting body 14 reaches the first feeding portion 24 while being sent to the far side inside the toner collecting container 11, the toner 9 is not conveyed in the axial direction. Vertical fin
25, most of the toner 9 is sent to the inner side of the toner collecting container 11.
そして、トナー回収容器11とトナー回収体14との間に
溜まつたトナー９は、後からくるトナー９によつてＰ方
向へ押し出され、再びトナー回収体14のトナー搬送部23
によつてトナー９の一部がトナー回収容器11内の奥側に
送り込まれながら、Ｐ方向へ搬送され、次の送込部24ま
で達する。すると、送込部24の垂直フイン25により大部
分がトナー回収容器11内の奥側に送り込まれる。この送
込部24でも先の送込部24と同様にして、溜まつたトナー
９がＰ方向へ搬送され、再び送込部24に達する。ここで
は、送込部24に両側からトナー９が送り込まれてくるた
め、残りのトナー９がすべてトナー回収容器11内の奥側
に送り込まれる。Then, the toner 9 accumulated between the toner collecting container 11 and the toner collecting body 14 is pushed out in the P direction by the toner 9 that comes later, and is again returned to the toner conveying section 23 of the toner collecting body 14.
As a result, a part of the toner 9 is conveyed in the P direction while being sent to the back side inside the toner collection container 11, and reaches the next feeding unit 24. Then, most of the toner is fed into the toner collection container 11 by the vertical fins 25 of the feeding unit 24. In this feeding section 24, the accumulated toner 9 is conveyed in the P direction in the same manner as the preceding feeding section 24, and reaches the feeding section 24 again. Here, since the toner 9 is sent into the feeding unit 24 from both sides, all the remaining toner 9 is sent to the back side inside the toner collection container 11.
このようにして、掻取部材10で掻き落とされたトナー
９は、トナー９の搬送方向の上流側から順にトナー回収
容器11に分散して溜まつていくので、搬送方向端部に最
初に溜まつてトナー回収体14に負荷を与えて搬送能力を
低下させることなく、最終的には均一にトナー回収容器
11にトナー９は回収される。In this way, the toner 9 scraped off by the scraping member 10 is dispersed and accumulated in the toner collection container 11 in order from the upstream side in the transport direction of the toner 9, so that the toner 9 is first collected at the end in the transport direction. Finally, the load on the toner collection body 14 is not reduced to reduce the transport capacity, and the toner collection
At 11 the toner 9 is collected.
したがつて、回収されるトナー９は感光体１に沿つて
トナー搬送室12を搬送され、感光体１に面していないト
ナー回収体14によりトナー回収容器11内の奥側へ回収さ
れるので、トナー９が感光体１へ逆流することはない。
しかも、掻き落とされたトナー９と回収されるトナー９
とを分離して、搬送方向の上流側より順にトナー回収容
器11内の奥側に回収されるので、トナー９が搬送方向の
上流側に溜まつて、トナー回収体14に負荷をかけて搬送
能力を低下させるといつたことがなく、安定したトナー
回収量を得ることができる。Accordingly, the collected toner 9 is conveyed through the toner conveying chamber 12 along the photoreceptor 1 and is collected by the toner collecting body 14 not facing the photoreceptor 1 to the inner side of the toner collecting container 11. The toner 9 does not flow back to the photoconductor 1.
In addition, the scraped toner 9 and the collected toner 9
And the toner 9 is collected in the inner side of the toner collection container 11 in order from the upstream side in the conveyance direction, so that the toner 9 collects on the upstream side in the conveyance direction and is conveyed by applying a load to the toner collection body 14. When the performance is reduced, a stable amount of collected toner can be obtained without any delay.
次に、トナー９を搬送方向上流側から順にトナー回収
容器11へ回収させるための方法として、上記の如く、ト
ナー回収体14にトナー搬送部23と送込部24とを設ける代
りに、第４図に示すように、トナー回収体14をトナー搬
送体13と同じ形状のものとして、感光体１と平行に配
し、トナー回収体14とトナー回収容器11の底面27との間
隔がトナー搬送方向上流側から下流側に向かつて狭くな
るよう、底面27は水平位置からθ１だけ傾斜した上り勾
配とする。Next, as a method for collecting the toner 9 in the toner collecting container 11 in order from the upstream side in the conveying direction, instead of providing the toner collecting unit 14 with the toner conveying unit 23 and the sending unit 24 as described above, a fourth method is used. As shown in the figure, the toner collecting body 14 has the same shape as the toner conveying body 13 and is arranged in parallel with the photoconductor 1, and the distance between the toner collecting body 14 and the bottom surface 27 of the toner collecting container 11 is in the toner conveying direction. so that toward ever narrower from the upstream side to the downstream side, the bottom surface 27 is an up slope inclined by theta 1 from the horizontal position.
したがつて、搬送方向上流側では、トナー回収体14の
搬送能力は小さくなり、トナー回収容器11内の奥側へ多
く送り込まれることになる。Accordingly, on the upstream side in the transport direction, the transport capability of the toner recovery body 14 is reduced, and the toner is recovered to be more deeply fed into the toner recovery container 11.
また、他の実施例として、第５図の如く、トナー回収
体14の支持軸22を水平位置からθ２だけ下向きに傾斜さ
せて、底面27に対して搬送方向上流側で高く、下流側で
低くなるようにしても、同様の効果を得ることができ
る。As another example, as in FIG. 5, only theta 2 the support shaft 22 of the toner collecting body 14 from the horizontal position is tilted downward, higher in the conveying direction upstream side relative to the bottom surface 27, downstream Even if it is made lower, the same effect can be obtained.
なお、本発明は、上記実施例に限定されるものではな
く、本発明の範囲内で上記実施例に多くの修正および変
更を加え得ることは勿論である。It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention.
〈発明の効果〉 以上の説明から明らかな通り、本発明によると、感光
体の長手方向に平行に配置されたトナー回収容器と感光
体との間に形成され掻取部材で掻取られたトナーを搬送
するトナー搬送室を備え、前記トナー回収容器とトナー
搬送室とは感光体の一端より外側で連通され、前記トナ
ー搬送室にトナーを感光体の一端側に搬送するトナー搬
送体が設けられ、前記トナー回収容器に前記トナー搬送
体と搬送方向が逆向きでトナーをトナー回収容器内の感
光体とは反対側方向に送り込むトナー回収体が設けら
れ、トナー回収体のトナー搬送部と送込部がトナー搬送
方向上流側から順に交互に配されているので、トナーを
トナー搬送方向の上流側から順に感光体に面していない
トナー回収容器に分散して溜めることができる。<Effects of the Invention> As is apparent from the above description, according to the present invention, the toner formed between the toner recovery container and the photoconductor arranged in parallel with the longitudinal direction of the photoconductor and scraped off by the scraping member A toner conveying chamber for conveying the toner, the toner collection container and the toner conveying chamber are communicated with each other outside one end of the photoconductor, and the toner conveying chamber is provided with a toner conveying body for conveying the toner to one end of the photoconductor. A toner collecting body for feeding the toner in a direction opposite to the photoconductor in the toner collecting container, the toner collecting body being provided in the toner collecting container with a conveying direction opposite to that of the toner conveying body; Since the units are alternately arranged in order from the upstream side in the toner conveying direction, the toner can be dispersed and accumulated in the toner collecting container not facing the photoconductor in order from the upstream side in the toner conveying direction.
したがつて、トナーが感光体へ逆流することはなく、
しかも、掻き落とされたトナーと回収されるトナーとを
分離しているので、搬送方向端部に最初に溜まつてトナ
ー回収体に負荷を与えて搬送能力を低下させることがな
く、最終的には均一にトナー回収容器にトナーを回収し
て、安定したトナー回収量を得ることができる。Therefore, the toner does not flow back to the photoconductor,
In addition, since the scraped-off toner and the collected toner are separated from each other, the toner is not accumulated first at the end in the conveyance direction, and a load is not applied to the toner collection body to lower the conveyance ability. Can uniformly collect the toner in the toner collection container and obtain a stable toner collection amount.
しかも、各送込部の長さがトナー搬送方向下流側に向
かうにつれて短くされているので、搬送方向上流側ほど
多くトナーをトナー回収容器内の奥側に送り込むことが
でき、上流側にトナーが溜まることを防ぎ、トナー回収
体への負荷を低減できる。Moreover, since the length of each feeding section is reduced toward the downstream side in the toner transport direction, more toner can be sent to the inner side in the toner collection container as the upstream side in the transport direction, and the toner is Accumulation can be prevented, and the load on the toner recovery body can be reduced.
また、トナー回収体とトナー回収容器の底面との間隔
は、トナー搬送方向上流側から下流側に向かつて狭くさ
れているので、搬送方向上流側では、トナー回収体の搬
送能力は小さくなり、トナーはトナー搬送室から送られ
てきたトナーによりトナー回収容器へ多く送り込まれ
る。そのため、トナーを搬送方向上流側から順にトナー
回収容器へ回収させることができる。Further, the distance between the toner collecting body and the bottom surface of the toner collecting container is narrowed from the upstream side in the toner conveying direction to the downstream side. Is sent to the toner collecting container by the toner sent from the toner transfer chamber. Therefore, the toner can be sequentially collected in the toner collection container from the upstream side in the transport direction.
第１図は本発明の一実施例を示す画像形成機構のトナー
回収装置の縦断面図、第２図は同じく横断面図、第３図
は第２図におけるＡ−Ａ断面図、第４図は本発明の他の
実施例を示すトナー回収体の側面図、第５図は同じく他
の実施例を示すトナー回収体の側面図、第６図は従来の
画像形成機構のトナー回収装置の断面図である。 1:感光体、9:残留トナー、10:掻取部材、11:トナー回収
容器、12:トナー搬送室、13:トナー搬送体、14:トナー
回収体、23:トナー搬送部、24:送込部、27:底面。FIG. 1 is a longitudinal sectional view of a toner collecting device of an image forming mechanism showing one embodiment of the present invention, FIG. 2 is a transverse sectional view thereof, FIG. 3 is a sectional view taken along line AA in FIG. 2, and FIG. FIG. 5 is a side view of a toner collecting body showing another embodiment of the present invention, FIG. 5 is a side view of the toner collecting body showing another embodiment of the present invention, and FIG. 6 is a cross section of a toner collecting device of a conventional image forming mechanism. FIG. 1: Photoreceptor, 9: Residual toner, 10: Scraping member, 11: Toner recovery container, 12: Toner transport chamber, 13: Toner transport body, 14: Toner recovery body, 23: Toner transport section, 24: Infeed Part, 27: bottom.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福永 高弘 大阪府大阪市阿倍野区長池町22番22号 シャープ株式会社内 (72)発明者 中山 藤一 大阪府大阪市阿倍野区長池町22番22号 シャープ株式会社内 (72)発明者 芝野 義文 大阪府大阪市阿倍野区長池町22番22号 シャープ株式会社内 (56)参考文献 特開 平２−64684（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takahiro Fukunaga 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Inventor Fujiichi Nakayama 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Sharp shares In-company (72) Inventor Yoshifumi Shibano 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (56) References JP-A-2-64684 (JP, A)
Claims (3)
取部材と、感光体の長手方向に平行に配置されたトナー
回収容器と、該トナー回収容器と感光体との間に形成さ
れ前記掻取部材で掻取られたトナーを搬送するトナー搬
送室とを備え、前記トナー回収容器とトナー搬送室とは
感光体の一端側で連通され、前記トナー搬送室にトナー
を感光体の一端側に搬送するトナー搬送体が設けられ、
前記トナー回収容器に前記トナー搬送体と搬送方向が逆
向きでトナーをトナー回収容器内の感光体とは反対側方
向に送り込むトナー回収体が設けられ、該トナー回収体
に、トナーを感光体の長手方向に搬送するトナー搬送部
と、トナーを長手方向に搬送しないでトナー回収容器内
の感光体とは反対側方向に送り込む送込部とが設けら
れ、トナー搬送方向上流側から順に前記トナー搬送部、
送込部が交互に配されたことを特徴とする画像形成機構
のトナー回収装置。A scraping member for scraping residual toner on the surface of the photoconductor; a toner collection container disposed in parallel with a longitudinal direction of the photoconductor; and a toner collection container formed between the toner collection container and the photoconductor. A toner transfer chamber for transferring the toner scraped by the scraping member, wherein the toner collection container and the toner transfer chamber communicate with one end of a photoconductor, and the toner is transferred to the toner transfer chamber at one end of the photoconductor. And a toner conveying body for conveying to the side is provided,
The toner collection container is provided with a toner collection unit for feeding the toner in a direction opposite to the photoconductor in the toner collection container in a direction opposite to that of the toner conveyance unit, and the toner collection unit is provided with a toner. A toner conveying section for conveying the toner in the longitudinal direction, and a feeding section for feeding the toner in a direction opposite to the photoconductor in the toner collecting container without conveying the toner in the longitudinal direction. Department,
A toner collecting device for an image forming mechanism, wherein feeding units are alternately arranged.
向かうにつれて短くされたことを特徴とする請求項１記
載の画像形成機構のトナー回収装置。2. The toner collecting device of an image forming mechanism according to claim 1, wherein the length of each feeding section is reduced toward the downstream side in the toner conveying direction.
取部材と、感光体の長手方向に平行に配置されたトナー
回収容器と、該トナー回収容器と感光体との間に形成さ
れ前記掻取部材で掻取られたトナーを搬送するトナー搬
送室とを備え、前記トナー回収容器とトナー搬送室とは
感光体の一端側で連通され、前記トナー搬送室にトナー
を感光体の一端側に搬送するトナー搬送体が設けられ、
前記トナー回収容器に前記トナー搬送体と搬送方向が逆
向きでトナーをトナー回収容器内の感光体とは反対側方
向に送り込むトナー回収体が設けられ、該トナー回収体
とトナー回収容器の底面との間隔は、トナー搬送方向上
流側から下流側に向かって狭くされたことを特徴とする
画像形成機構のトナー回収装置。3. A scraping member for scraping residual toner on the surface of a photoreceptor, a toner collection container disposed parallel to a longitudinal direction of the photoreceptor, and a toner collection container formed between the toner collection container and the photoreceptor. A toner transfer chamber for transferring the toner scraped by the scraping member, wherein the toner collection container and the toner transfer chamber communicate with one end of a photoconductor, and the toner is transferred to the toner transfer chamber at one end of the photoconductor. And a toner conveying body for conveying to the side is provided,
The toner collection container is provided with a toner collection unit for feeding toner in a direction opposite to the photoconductor in the toner collection container in a direction opposite to that of the toner conveyance unit, and the toner collection unit and a bottom surface of the toner collection container. Characterized in that the distance between the toner collection device and the toner collection device is narrowed from the upstream side to the downstream side in the toner conveying direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2229444A JP2630673B2 (en) | 1990-08-29 | 1990-08-29 | Image forming mechanism toner recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2229444A JP2630673B2 (en) | 1990-08-29 | 1990-08-29 | Image forming mechanism toner recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04109284A JPH04109284A (en) | 1992-04-10 |
| JP2630673B2 true JP2630673B2 (en) | 1997-07-16 |
Family
ID=16892309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2229444A Expired - Fee Related JP2630673B2 (en) | 1990-08-29 | 1990-08-29 | Image forming mechanism toner recovery device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2630673B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007139905A (en) * | 2005-11-15 | 2007-06-07 | Ricoh Co Ltd | Powder container / toner container / waste toner container / image forming device |
| US7599633B2 (en) | 2005-11-15 | 2009-10-06 | Ricoh Company, Ltd. | Image forming apparatus dust container including dust conveyance members |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4841367B2 (en) * | 2006-09-08 | 2011-12-21 | 株式会社リコー | Powder recovery apparatus, process cartridge, and image forming apparatus |
| JP2008122662A (en) * | 2006-11-13 | 2008-05-29 | Murata Mach Ltd | Developing device |
| JP4939578B2 (en) * | 2009-08-19 | 2012-05-30 | 株式会社沖データ | Developer transport device, developer container, and image forming apparatus |
| JP5716927B2 (en) | 2012-08-10 | 2015-05-13 | コニカミノルタ株式会社 | Waste toner collecting apparatus and image forming apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0264684A (en) * | 1988-08-31 | 1990-03-05 | Seiko Epson Corp | Waste toner collection device |
-
1990
- 1990-08-29 JP JP2229444A patent/JP2630673B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007139905A (en) * | 2005-11-15 | 2007-06-07 | Ricoh Co Ltd | Powder container / toner container / waste toner container / image forming device |
| US7599633B2 (en) | 2005-11-15 | 2009-10-06 | Ricoh Company, Ltd. | Image forming apparatus dust container including dust conveyance members |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04109284A (en) | 1992-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| USRE38978E1 (en) | Toner transporting method and mechanism employing a belt conveyor | |
| JPH1152806A (en) | Toner recovering device and image forming device using the same | |
| US20030049043A1 (en) | Image forming device having paper dust removing units | |
| CN103324070B (en) | Reclaim toner and be transported to the toner conveyance unit of toner container | |
| JP2008175956A (en) | Powder conveying apparatus, toner conveying apparatus, process cartridge, and image forming apparatus | |
| JP2630673B2 (en) | Image forming mechanism toner recovery device | |
| US8556261B2 (en) | Power transmission method and apparatus, medium discharging apparatus using the same, and image forming device having the medium discharging apparatus | |
| JP2931521B2 (en) | Cleaning equipment | |
| JP3080832B2 (en) | Cleaning equipment | |
| JP2000500246A (en) | A device for transporting used toner in a cleaning device of an electrographic printing or copying machine | |
| CN105467804B (en) | Cleaning unit and image forming apparatus provided with cleaning unit | |
| JP3103870B2 (en) | Waste toner collection device for image forming equipment | |
| JP2013130786A (en) | Toner recovery device and image forming apparatus | |
| JP3712682B2 (en) | Residual toner recovery device for image forming machine | |
| US5327197A (en) | Electrophotographic apparatus | |
| CN103425029B (en) | Cleaning device and the image processing system comprising cleaning device | |
| JPH10203672A (en) | Paper feeder | |
| JP3706328B2 (en) | Residual toner recovery device for image forming machine | |
| JP4420639B2 (en) | Toner conveying apparatus, electrophotographic apparatus and cleaning apparatus using the same | |
| JP3803164B2 (en) | Residual toner collecting device of image forming apparatus, image forming device | |
| CN1209573A (en) | Squeeze roller assembly for wet type developer of electrophotographic printing machine | |
| US20040005179A1 (en) | Waste toner collecting apparatus using OPC drum | |
| JP3974147B2 (en) | Residual toner recovery device for image forming apparatus | |
| JP3576012B2 (en) | Developer recovery device and developer transport device | |
| JPH01134387A (en) | Toner recovery device for image forming device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080425 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090425 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090425 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100425 Year of fee payment: 13 |
|
| LAPS | Cancellation because of no payment of annual fees |