JP2004029343A - Toner collecting device - Google Patents

Toner collecting device Download PDF

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Publication number
JP2004029343A
JP2004029343A JP2002184919A JP2002184919A JP2004029343A JP 2004029343 A JP2004029343 A JP 2004029343A JP 2002184919 A JP2002184919 A JP 2002184919A JP 2002184919 A JP2002184919 A JP 2002184919A JP 2004029343 A JP2004029343 A JP 2004029343A
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Japan
Prior art keywords
toner
collection bottle
collection
coil
bottle
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Granted
Application number
JP2002184919A
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Japanese (ja)
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JP3940323B2 (en
Inventor
Yoshinori Konno
今野　良宣
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Ricoh Co Ltd
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Ricoh Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To improve a toner collecting device where a waste toner collection bottle is arranged laterally long so that the collection performance is increased and the collection bottle is smoothly put in and taken out. <P>SOLUTION: A coil holding component 10a is fixed to the bottom surface of a body base 2 of a device body 1 with a plurality of machine screws 11 and a conveyance coil 5 is provided in the coil holding component 10a to constitute a mechanism which conveys a collected toner into the collection bottle 12. The coil holding component 10 is provided with a plurality of thin and long holes 14 and a toner falls in the collection bottle 12 from those holes 14. A groove 15 in which the coil holding component 10 is fitted is formed in a long groove shape on the top surface of the collection bottle 12, a hole 16 receiving the collected toner is bored in the bottom surface of the groove 15, and the toner is accumulated in the collection bottle 12. On the insertion-directional tip side of the collection bottle 12, a toner receiver 17 is provided to prevent a toner from falling from the coil holding component 10 when the bottle is put in and taken out from an image forming apparatus. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、プリンタ、プロッタ、複写機等の粉体状のトナーを用いる電子写真プロセス方式の画像形成装置に用いるトナー回収装置に関し、特に回収ボトルを横長にして用いるものに関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
粉体状のトナーを用いる電子写真プロセス方式の画像形成装置においては、使用したトナーを回収するための装置を備えるものが多い。この種の装置のうち、縦長に回収ボトルを配置するものにおいては、回収トナーの自然落下によって、回収ボトル内にはある程度の均一性のあるトナーの山が形成され、回収ボトルを有効に使用してトナーを蓄積する事が可能である。
【０００３】
一方、画像形成装置の全体レイアウトによってどうしても横長の回収ボトルを用いる場合は、回収ボトルの長手方向に十分トナーを詰めるためには、搬送コイルなどを使用して、回収ボトル奥まで回収トナーを搬送することが必要である。現在の方式の１つに、パイプなどの中に搬送コイルを挿入し、パイプ片方端部を本体側板に固定する方持ち体制で搬送を行う機構がある。
【０００４】
図８は、このようなトナー回収装置の一例を示す部分断面図（Ａ）と画像形成装置の装置本体に対する配置状態を示す概念的斜視図（Ｂ）である。図中１は画像形成装置の装置本体、２は装置本体１の本体ベース、３は同じく側板で、本体ベース２の下側に位置するように側板３に搬送パイプ４が片持ち状態で固定してあり、その内側に回収トナーを搬送するための搬送コイル５が設けてある。搬送コイル５には、搬送中のトナーを図示しない回収ボトル内へ排出するための小孔６が設けてある。
【０００５】
この方式では、例えば搬送パイプ４を４００ｍｍ以上に伸ばすことが必要な機械に適用すると、本体側板３に片持ち状に搬送パイプ４を取り付けるため、取り付け方によっては長い搬送パイプ４の先端位置を正確に位置決めすることが非常に難しく、回収ボトル内への搬送パイプ４の誘導が難しくなり、取り付けに手間がかかってしまうという問題が生じる。また、長期仕様の間に、搬送パイプ４の自重や搬送コイル５の回転によって搬送パイプ４の先端位置の長期保持が難しくなり、回収ボトルへの出し入れの際に搬送パイプ４を回収ボトル内へ誘導することができなくなるという問題が生じることもある。
【０００６】
本発明は、上記従来の問題点にかんがみてなしたもので、廃トナーの回収ボトルを横長に配置するトナー回収装置において、十分に回収性を高めることができるように、また回収ボトルの出し入れがスムーズになるように改善することを目的とする。
【０００７】
【課題を解決するための手段】
本発明の請求項１に係るトナー回収装置は、上記目的を達成するために、粉体状のトナーを用いる電子写真プロセス方式の画像形成装置に用い、転写過程で発生する残トナーを回収するトナー回収装置において、長手方向に回収トナーを搬送する回収コイルと、該回収コイルを内部に収納保持する保持部材と、上記回収コイルの長手方向に沿って配置する回収ボトルとからなり、上記保持部材が、上記画像形成装置の装置本体の所定部位に非片持ち状態で取り付けるための取り付け部を有し、上記回収ボトルが、上記保持部材の下側を受ける部位を上部に有することを特徴とする。
【０００８】
同請求項２に係るものは、上記目的を達成するために、請求項１のトナー回収装置において、上記保持部材の上記回収ボトルの受け部に対応する部位に、トナーを排出する複数の穴またはスリットを設けてなることを特徴とする。
【０００９】
同請求項３に係るものは、上記目的を達成するために、請求項１または２のトナー回収装置において、上記保持部材の受け部に複数の穴またはスリットを設けてなることを特徴とする。
【００１０】
同請求項４に係るものは、上記目的を達成するために、請求項１ないし３のいずれかのトナー回収装置において、上記回収ボトルの上記装置本体への装着状態で回収トナーの搬送方向で上流側部分に、トナー落下防止用のトナー受けを設けてなることを特徴とする。
【００１１】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照して説明する。なお以下では従来と共通する部分には共通する符号を付すにとどめ重複する説明は省略する。
図１は本発明に係るトナー回収装置の一実施形態を示す分解斜視図、図２は同側面図、図３は同正面図である。図中１０はコイル保持部品で、装置本体１の本体ベース２の底面に複数のビス１１・・・で固定してあり、この中に搬送コイルを設けて回収トナーを回収ボトル１２内へ搬送する機構となっている。図中１３はガイドレールで、回収ボトル１２を出し入れする際に回収ボトル１２をスムーズに挿入ガイドするための皿状のものである。
【００１２】
図４はコイル保持部品１０の斜視図（Ａ）、底面図（Ｂ）、部分破断側面図（Ｃ）である。コイル保持部品１０は、トナー落下方向（図示の例では下方）に向けて図示のように複数の細長い穴１４を明けてあり、この穴１４からトナーが回収ボトル１２内へ落ちる仕組みになっている。穴１４の数は、回収ボトル１２の長さにもより、設定される満杯条件によって個数の増減を行い、最適なトナー回収が行えるようにする。なお穴１４は、図６に示す変形例のようにスリット状の穴１４ａでもよい。ただし、コイル保持部品１０内に十分に搬送コイル５が保持できる、すなわち搬送コイル５がそこから飛び出ない幅のものであることが望ましい。
【００１３】
図５は回収ボトル１２の平面図（Ａ）及び側面断面図（Ｃ）である。回収ボトル１２は、ガイドレール１３によってスムーズにガイドされ得るように平面状に形成した底面を有するとともに、上面にはコイル保持部品１０と嵌着するための溝１５が長溝状に形成してある。コイル保持部品１０の長さ（全長あるいは穴１４を設けた部分の長さ）は、この溝１５の長さ以下に設定することになる。またこの溝１５の底面には、図示のように穴１６が明けてあり、搬送コイル５によって搬送されてきた回収トナーＴ（搬送方向は図２や図４（Ｃ）において矢印ｔで示すように図の右から左方向である）が図２で示すように回収ボトル１２の内部に蓄積される。なお、溝１５に設ける穴１６は、図７に示すようにスリット状の穴１６ａであってもよい。
【００１４】
さらに、回収ボトル１２の挿入方向先端側（搬送コイル５によるトナー搬送上流側）には、画像形成装置への出し入れ時にコイル保持部品１０からのトナーの落下を防ぐためにトナー受け１７を設けてある。このトナー受け１７によって、回収ボトル１２の出し入れの時に落下する回収トナーの７割を受け止め、画像形成装置内への飛散を防ぐことができた。
【００１５】
以上説明してきた実施形態においては、片持ち状の搬送コイル５を挿入する長いパイプ、すなわちコイル保持部品１０を片持ちでない状態で取り付け、その先端位置出しを不要とし、ビス１１による取り付けで位置が決まるようにしてあり、長期間使用していても、コイル保持部品１０の先端位置が狂わないので、回収ボトル１２の出し入れをいつでもスムーズに行える。
【００１６】
【発明の効果】
本発明に係るトナー回収装置は、以上説明してきたように、長手方向に回収トナーを搬送する回収コイルと、この回収コイルを内部に収納保持する保持部材と、回収コイルの長手方向に沿って配置する回収ボトルとからなり、回収コイルの保持部材が、画像形成装置の装置本体の所定部位に非片持ち状態で取り付けるための取り付け部を有し、回収ボトルが、そのような保持部材の下側を受ける部位を上部に有する構成としたので、回収コイルの保持部材を取り付ける際の位置出しを行わなくても正確かつ容易に取り付けることが可能になり、また長期間の使用でもその位置が変わらないので回収ボトルの出し入れをいつでもスムーズに行えるようになるという効果がある。
【００１７】
また請求項４に係るトナー回収装置は、以上説明してきたように、回収ボトルの装置本体への装着状態で回収トナーの搬送方向で上流側部分にトナー落下防止用のトナー受けを設けてなるので、上記共通の効果に加え、回収ボトルを出し入れする際に保持部材から落下する回収トナーを受け止めて画像形成装置内へ飛散しないようにすることができるという効果がある。
【図面の簡単な説明】
【図１】本発明に係るトナー回収装置の一実施形態を示す分解斜視図である。
【図２】同側面図である。
【図３】同正面図である。
【図４】本発明の実施形態におけるコイル保持部品の斜視図（Ａ）、底面図（Ｂ）、部分破断側面図（Ｃ）である。
【図５】同回収ボトルの平面図（Ａ）及び側面断面図（Ｃ）である。
【図６】本発明の実施形態におけるコイル保持部品の変形例を示す底面図である。
【図７】本発明の実施形態における回収ボトルの変形例を示す平面図である。
【図８】従来のトナー回収装置の一例を示す部分断面図（Ａ）と画像形成装置の装置本体に対する配置状態を示す概念的斜視図（Ｂ）である。
【符号の説明】
１　画像形成装置の装置本体
２　本体ベース
３　側板
５　搬送コイル
１０　コイル保持部品
１１　ビス
１２　回収ボトル
１３　ガイドレール
１４、１４ａ　コイル保持部品の穴
１５　回収ボトルの溝
１６、１６ａ　回収ボトルの穴
１７　トナー受け
Ｔ　回収トナー
ｔ　回収トナーの搬送方向[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a toner collecting device used in an electrophotographic process type image forming apparatus using a powdery toner, such as a printer, a plotter, and a copying machine.
[0002]
Problems to be solved by the prior art and the invention
2. Description of the Related Art Many electrophotographic image forming apparatuses using a powdery toner include an apparatus for collecting used toner. Among the devices of this type, in which the collection bottle is arranged vertically, a spun mountain of toner having a certain degree of uniformity is formed in the collection bottle due to the natural fall of the collected toner, and the collection bottle is used effectively. To accumulate toner.
[0003]
On the other hand, when a horizontally long collection bottle is inevitably used depending on the overall layout of the image forming apparatus, in order to sufficiently pack the toner in the longitudinal direction of the collection bottle, the collection toner is conveyed to the back of the collection bottle using a conveyance coil or the like. It is necessary. As one of the current systems, there is a mechanism in which a transfer coil is inserted into a pipe or the like, and the transfer is performed in a portable holding system in which one end of the pipe is fixed to a main body side plate.
[0004]
FIG. 8 is a partial cross-sectional view (A) showing an example of such a toner collecting device and a conceptual perspective view (B) showing an arrangement state of the image forming apparatus with respect to the apparatus main body. In the drawing, reference numeral 1 denotes an apparatus main body of the image forming apparatus, 2 denotes a main body base of the apparatus main body 1, 3 denotes a side plate, and a transport pipe 4 is fixed to the side plate 3 in a cantilever state so as to be located below the main body base 2. And a transport coil 5 for transporting the collected toner is provided inside thereof. The transport coil 5 is provided with a small hole 6 for discharging the toner being transported into a collection bottle (not shown).
[0005]
In this method, for example, when applied to a machine that requires the transport pipe 4 to be extended to 400 mm or more, the transport pipe 4 is attached to the main body side plate 3 in a cantilever manner. It is very difficult to position the transfer pipe 4 in the collection bottle, and it is difficult to guide the transport pipe 4 into the collection bottle, and there is a problem that the installation takes time and effort. In addition, during the long-term specification, it is difficult to maintain the leading end position of the transport pipe 4 for a long time due to the weight of the transport pipe 4 and the rotation of the transport coil 5, and the transport pipe 4 is guided into the collection bottle when taking in and out of the collection bottle. There is also a problem that it becomes impossible to do so.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and in a toner recovery apparatus in which a waste toner recovery bottle is horizontally arranged, collection and removal of a recovery bottle is performed so that collection efficiency can be sufficiently improved. The aim is to improve it to be smooth.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a toner recovery apparatus according to claim 1 of the present invention is used in an electrophotographic image forming apparatus using a powdery toner, and recovers residual toner generated during a transfer process. In the collection device, a collection coil that transports the collected toner in the longitudinal direction, a holding member that stores and holds the collection coil therein, and a collection bottle that is disposed along the longitudinal direction of the collection coil, wherein the holding member is The image forming apparatus further comprises a mounting portion for mounting in a non-cantilever state on a predetermined portion of the apparatus main body of the image forming apparatus, wherein the collection bottle has a portion for receiving a lower side of the holding member at an upper portion.
[0008]
According to a second aspect of the present invention, in order to achieve the above object, in the toner recovery apparatus of the first aspect, a plurality of holes or a plurality of holes for discharging toner are provided in a portion of the holding member corresponding to the receiving portion of the recovery bottle. It is characterized by having a slit.
[0009]
According to a third aspect of the present invention, in order to achieve the above object, in the toner recovery apparatus of the first or second aspect, a plurality of holes or slits are provided in a receiving portion of the holding member.
[0010]
According to a fourth aspect of the present invention, in order to achieve the above object, in the toner recovery apparatus according to any one of the first to third aspects, the recovery bottle is attached to the apparatus main body in the upstream direction in the transport direction of the recovered toner. It is characterized in that a toner receiver for preventing toner fall is provided on the side part.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following, portions common to the related art will be denoted by the same reference numerals, and redundant description will be omitted.
FIG. 1 is an exploded perspective view showing an embodiment of a toner collecting device according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a front view thereof. In the drawing, reference numeral 10 denotes a coil holding component, which is fixed to a bottom surface of the main body base 2 of the apparatus main body 1 with a plurality of screws 11. A conveying coil is provided therein to convey the collected toner into the collection bottle 12. It is a mechanism. In the figure, reference numeral 13 denotes a guide rail, which is a dish-shaped one for smoothly guiding the collection bottle 12 when the collection bottle 12 is taken in and out.
[0012]
FIG. 4 is a perspective view (A), a bottom view (B), and a partially broken side view (C) of the coil holding component 10. The coil holding component 10 is provided with a plurality of elongated holes 14 as shown in the drawing toward the toner dropping direction (downward in the illustrated example), and toner is dropped into the collection bottle 12 from the holes 14. . The number of the holes 14 is increased or decreased according to the set full condition depending on the length of the collection bottle 12, so that the optimum toner collection can be performed. The hole 14 may be a slit-like hole 14a as in the modification shown in FIG. However, it is desirable that the transfer coil 5 has a width that can sufficiently hold the transfer coil 5 in the coil holding component 10, that is, the transfer coil 5 does not protrude therefrom.
[0013]
FIG. 5 is a plan view (A) and a side sectional view (C) of the collection bottle 12. The recovery bottle 12 has a flat bottom surface so that it can be smoothly guided by the guide rails 13, and a groove 15 for fitting with the coil holding component 10 is formed in a long groove shape on the upper surface. The length of the coil holding component 10 (the entire length or the length of the portion where the hole 14 is provided) is set to be equal to or less than the length of the groove 15. A hole 16 is formed in the bottom of the groove 15 as shown in the figure, and the collected toner T transported by the transport coil 5 (the transport direction is as shown by an arrow t in FIGS. 2 and 4C). (From right to left in the figure) is accumulated in the collection bottle 12 as shown in FIG. The hole 16 provided in the groove 15 may be a slit-like hole 16a as shown in FIG.
[0014]
Further, a toner receiver 17 is provided on the distal end side of the collection bottle 12 in the insertion direction (on the upstream side of the toner transport by the transport coil 5) in order to prevent the toner from dropping from the coil holding component 10 at the time of taking in and out of the image forming apparatus. The toner receiver 17 received 70% of the collected toner falling when the collection bottle 12 was taken in and out, and was prevented from scattering into the image forming apparatus.
[0015]
In the embodiment described above, the long pipe into which the cantilevered transfer coil 5 is inserted, that is, the coil holding component 10 is attached in a non-cantilever state, so that the positioning of the tip end is not required. Since the position of the leading end of the coil holding component 10 is not disturbed even when the device is used for a long period of time, the collection bottle 12 can be smoothly taken in and out at any time.
[0016]
【The invention's effect】
As described above, the toner collecting device according to the present invention includes a collecting coil that conveys collected toner in a longitudinal direction, a holding member that stores and holds the collected coil inside, and a toner collecting device that is disposed along the longitudinal direction of the collecting coil. And a holding member for the collecting coil has a mounting portion for non-cantilever mounting on a predetermined portion of the apparatus main body of the image forming apparatus, and the collecting bottle is provided on a lower side of such a holding member. Has a receiving part at the top, so that it can be accurately and easily mounted without positioning when mounting the holding member of the recovery coil, and its position does not change even after long-term use. Therefore, there is an effect that the collection bottle can be smoothly put in and taken out at any time.
[0017]
As described above, the toner collecting device according to the fourth aspect is provided with the toner receiver for preventing the toner from dropping on the upstream side in the conveying direction of the collected toner when the collection bottle is attached to the apparatus main body. In addition to the above-mentioned common effects, there is an effect that the collected toner falling from the holding member when the collection bottle is taken in and out can be received and not scattered into the image forming apparatus.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of a toner recovery device according to the present invention.
FIG. 2 is a side view of the same.
FIG. 3 is a front view of the same.
FIG. 4 is a perspective view (A), a bottom view (B), and a partially broken side view (C) of the coil holding component according to the embodiment of the present invention.
FIG. 5 is a plan view (A) and a side sectional view (C) of the collection bottle.
FIG. 6 is a bottom view showing a modification of the coil holding component according to the embodiment of the present invention.
FIG. 7 is a plan view showing a modification of the collection bottle according to the embodiment of the present invention.
FIG. 8A is a partial cross-sectional view illustrating an example of a conventional toner collecting apparatus, and FIG. 8B is a conceptual perspective view illustrating an arrangement state of the image forming apparatus with respect to the apparatus main body.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 apparatus main body of image forming apparatus 2 main body base 3 side plate 5 transfer coil 10 coil holding component 11 screw 12 collection bottle 13 guide rail 14, 14a coil holding component hole 15 collection bottle groove 16, 16a collection bottle hole 17 toner receiver T Collected toner t Transport direction of collected toner

Claims (4)

粉体状のトナーを用いる電子写真プロセス方式の画像形成装置に用い、転写過程で発生する残トナーを回収するトナー回収装置において、長手方向に回収トナーを搬送する回収コイルと、該回収コイルを内部に収納保持する保持部材と、上記回収コイルの長手方向に沿って配置する回収ボトルとからなり、上記保持部材が、上記画像形成装置の装置本体の所定部位に非片持ち状態で取り付けるための取り付け部を有し、上記回収ボトルが、上記保持部材の下側を受ける部位を上部に有することを特徴とするトナー回収装置。In a toner collection device that collects residual toner generated in a transfer process, which is used in an image forming apparatus of an electrophotographic process method using a powdery toner, a collection coil that conveys the collected toner in a longitudinal direction, and an inside of the collection coil. And a collection bottle arranged along the longitudinal direction of the collection coil, wherein the holding member is attached to a predetermined portion of the apparatus body of the image forming apparatus in a non-cantilever state. Wherein the collection bottle has a portion at an upper portion for receiving the lower side of the holding member. 請求項１のトナー回収装置において、上記保持部材の上記回収ボトルの受け部に対応する部位に、トナーを排出する複数の穴またはスリットを設けてなることを特徴とするトナー回収装置。2. The toner collecting device according to claim 1, wherein a plurality of holes or slits for discharging toner are provided in a portion of the holding member corresponding to the receiving portion of the collecting bottle. 請求項１または２のトナー回収装置において、上記保持部材の受け部に複数の穴またはスリットを設けてなることを特徴とするトナー回収装置。3. The toner collecting device according to claim 1, wherein a plurality of holes or slits are provided in a receiving portion of the holding member. 請求項１ないし３のいずれかのトナー回収装置において、上記回収ボトルの上記装置本体への装着状態で回収トナーの搬送方向で上流側部分に、トナー落下防止用のトナー受けを設けてなることを特徴とするトナー回収装置。4. The toner collecting device according to claim 1, wherein a toner receiver for preventing toner falling is provided on an upstream side in a conveying direction of the collected toner when the collection bottle is mounted on the apparatus main body. Characterized toner recovery device.
JP2002184919A 2002-06-25 2002-06-25 Toner recovery device, image forming apparatus Expired - Fee Related JP3940323B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007034338A (en) * 2006-11-13 2007-02-08 Ricoh Co Ltd Toner collection device and image forming apparatus
JP2009122238A (en) * 2007-11-13 2009-06-04 Canon Inc Waste toner collection vessel for image forming apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007034338A (en) * 2006-11-13 2007-02-08 Ricoh Co Ltd Toner collection device and image forming apparatus
JP4587227B2 (en) * 2006-11-13 2010-11-24 株式会社リコー Toner recovery device, image forming apparatus
JP2009122238A (en) * 2007-11-13 2009-06-04 Canon Inc Waste toner collection vessel for image forming apparatus

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