JPH0338683A - Toner recovery device of image forming device - Google Patents
Toner recovery device of image forming deviceInfo
- Publication number
- JPH0338683A JPH0338683A JP17288789A JP17288789A JPH0338683A JP H0338683 A JPH0338683 A JP H0338683A JP 17288789 A JP17288789 A JP 17288789A JP 17288789 A JP17288789 A JP 17288789A JP H0338683 A JPH0338683 A JP H0338683A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- container
- image forming
- toner recovery
- particles
- 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 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 108091008695 photoreceptors Proteins 0.000 description 6
- 239000002699 waste material Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Landscapes
- Cleaning In Electrography (AREA)
Abstract
Description
【発明の詳細な説明】
(1)発明の目的
(産業上の利用分野)
この発明は静電複写機、同プリンタなど静電転写プロセ
スを利用する画像形成装置、とくにその廃トナー回収装
置に関するものである。Detailed Description of the Invention (1) Purpose of the Invention (Field of Industrial Application) The present invention relates to an image forming apparatus that utilizes an electrostatic transfer process, such as an electrostatic copying machine or a printer, and particularly to a waste toner collection device thereof. It is.
(従来技術と解決すべき課題)
像担持体表面に形成した可転写トナー像を紙などの転写
材に転写する周知の画像形成装置においては、転写のさ
い、転写に寄与せず像担持体に残る残留トナーの発生を
回避できないので、これを確実に除去することが必要で
ある。(Prior Art and Issues to be Solved) In a well-known image forming apparatus that transfers a transferable toner image formed on the surface of an image carrier to a transfer material such as paper, during the transfer, a toner image is transferred to the image carrier without contributing to the transfer. Since the generation of remaining residual toner cannot be avoided, it is necessary to reliably remove it.
このためのトナー除去手段としては従来から幾多のもの
が提案、実流されているが、いずれにしても除去したト
ナーを回収容期に貯溜してゆき、該容器が満杯になった
らこれを捨てたり、新しい容器と交換するようにするの
が普通である。Many methods have been proposed and put into practice as toner removal means for this purpose, but in any case, the removed toner is stored during the collection period, and when the container is full, it is discarded. It is normal to replace the container with a new one.
ところで、トナーは極めて微細な粒子から成るので、ト
ナーを像担持体から除去し、これを回収容期に案内して
収納し、さらに該容器を取り外して処理する全過程にお
いて、トナーを完全に畜封状態で処理することは事実上
困難であって、トナーの散逸による各部の汚染を阻止す
ることは容易ではない。By the way, since toner is composed of extremely fine particles, it is necessary to completely collect the toner during the entire process of removing the toner from the image carrier, guiding and storing it in the collection stage, and then removing and processing the container. It is actually difficult to process the toner in a sealed state, and it is not easy to prevent contamination of various parts due to toner dissipation.
このような問題を解決すべ〈従来から、例えば、■回収
したトナーを有機溶剤で溶解してゲル化するもの(特公
昭56−14617号)、■回収トナーを容器内でプレ
スして塊状にするもの(特公昭57−16472号)、
■回収容期にヒータを取着してトナーを加熱溶融するも
の(特公昭58−181081号)、■容器とそのトナ
ーの排出口の間に設けたヒータでトナーを熔融滴下して
塊状に固化させるちのなど幾多のものが既に提案されて
いる。These problems can be solved by methods such as: (1) dissolving the collected toner in an organic solvent and turning it into a gel (Japanese Patent Publication No. 14617/1982); (2) pressing the collected toner in a container to form a lump. (Special Publication No. 57-16472),
■ A heater is installed to heat and melt the toner during the collection period (Special Publication No. 181081/1981); ■ A heater installed between the container and its toner outlet melts and drips the toner, solidifying it into a lump. A number of methods have already been proposed, such as Sasechino.
しかしながら、これらのものは、たとえば上記■のもの
は容器を溶剤に侵されないちのとしなければならず、ま
た溶剤の揮発、溢出の問題などがあり、■の場合はプレ
スでトナーを塊状にし、しかも粉状のまま残る部分を完
全に無くすようなことは困難であり、構成も複雑化して
実用的ではなく、■、■のようなものもヒータ、これに
付帯する手段などを必要とするので、コスト、消費電力
などの問題がある。However, in the case of these products, for example, in the case of the above-mentioned item (■), the container must be kept unaffected by the solvent, and there are problems such as solvent volatilization and overflow. It is difficult to completely eliminate the part that remains in powder form, and the structure becomes complicated and impractical. There are problems such as cost and power consumption.
本発明はこのような事態に対処すべくされたものであっ
て、格段複雑な機構を必要とせず、画像形成装置に通常
設置されている冷却手段排熱を利用して回収した微細粉
末状のトナーを粒状化してトナーの散逸を確実に防止し
、コスト的にも有利な廃トナー回収容期を提供すること
を目的とするちのである。The present invention has been developed to deal with such a situation, and does not require a particularly complicated mechanism, and is capable of producing fine powder in the form of a fine powder recovered by utilizing the exhaust heat of a cooling means normally installed in an image forming apparatus. The purpose of this is to reliably prevent the toner from dissipating by granulating the toner, and to provide a cost-effective waste toner collection period.
(2)発明の構成
(課題を解決する技術手段、その作用)上記の目的を達
成するため、本発明は、像担持体表面の残留トナーをク
リーナによって除去した後、このトナーをトナー回収容
期に案内貯溜する画像形成装置のトナー回収装置におい
て、該トナー回収容期を2重壁面に形成するとともに、
定着装置部位で発生する加熱空気を前記容器の2重壁面
間の中空部に供給するように構成したことを特徴とする
ものである。(2) Structure of the Invention (Technical Means for Solving the Problems and Their Effects) In order to achieve the above object, the present invention provides a method for removing residual toner on the surface of an image bearing member using a cleaner, and then transferring the toner to a toner collection stage. In a toner collection device of an image forming apparatus that guides and stores toner, the toner collection and storage period is formed on a double wall surface, and
The present invention is characterized in that the heated air generated in the fixing device portion is supplied to a hollow portion between the double wall surfaces of the container.
このように構成することによって、極めて簡単な機構に
よって、回収したトナーをすべて確実に粒子化出来るの
で、トナーの後処理が簡単になる。With this configuration, all of the collected toner can be reliably turned into particles using an extremely simple mechanism, so that post-processing of the toner can be simplified.
(実施例の説明)
第1図は本発明を適用した画像形成装置の一例を示す概
略側面図で、回転円筒状の感光体1の表面が帯電器2に
よって一様に帯電され、該帯電面に画像信号付与手段3
によって静電潜像が形成される。(Description of Embodiments) FIG. 1 is a schematic side view showing an example of an image forming apparatus to which the present invention is applied, in which the surface of a rotating cylindrical photoreceptor 1 is uniformly charged by a charger 2, image signal applying means 3 to
An electrostatic latent image is formed.
ついで、該潜像に、現像器4によってトナーが供給され
てトナー像となり、感光体iの回転につれて、このトナ
ー像が、転写帯電器6を配した転写部位に到来すると、
この位置で感光体側のトナー像は、この時までに転写部
位に供給されている転写材に転移する。Next, toner is supplied to the latent image by the developing device 4 to form a toner image, and as the photoreceptor i rotates, this toner image arrives at a transfer site where a transfer charger 6 is arranged.
At this position, the toner image on the photoreceptor side is transferred to the transfer material that has been supplied to the transfer site by this time.
かくてトナー像を担持した転写材は搬送装置7を経て定
着装置8にて至り、ここで定着ローラ対によって熱と圧
力を受けて、トナー像が転写材に定着固定された後、機
外に排出される。The transfer material carrying the toner image passes through the conveyance device 7 and reaches the fixing device 8, where it is subjected to heat and pressure by a pair of fixing rollers, and after the toner image is fixed and fixed on the transfer material, it is removed from the machine. It is discharged.
転写のさいに、転写材に転移しなかった一部のトナーは
、感光体1の回転につれてクリーナ10の位置に至って
これによって感光体から除去され、このトナーはクリー
ナ内に装着された、不図示の搬送スクリューその他適宜
の搬送手段によって紙面に垂直方向に搬送されてクリー
ナから排除され、さらに、よく知られているように、ダ
クトなどによって画像形成装置内適所に設置された廃ト
ナー回収容期9に収納されるものとする。During transfer, some of the toner that was not transferred to the transfer material reaches the cleaner 10 as the photoreceptor 1 rotates and is removed from the photoreceptor, and this toner is removed by a cleaner (not shown) installed in the cleaner. The waste toner is conveyed perpendicularly to the plane of the paper by a conveyance screw or other suitable conveyance means, and is removed from the cleaner, and furthermore, as is well known, the waste toner collection and storage stage 9 is installed at an appropriate location in the image forming apparatus by a duct or the like. shall be stored in.
このような画像形成装置において、図示の装置にあって
は、第2図に略示するように、定着装置の加熱ローラに
よる、周辺の過熱を阻止するために配設しであるファン
11によってトナー回収容期9に送給するものとする。In such an image forming apparatus, as schematically shown in FIG. 2, a fan 11 is provided to prevent the surrounding area from being overheated by the heating roller of the fixing device. It shall be sent during collection period 9.
容器9は、第3図に示すように全体として2重の壁面で
中空状に構成してあり、その上部に導入口9a、下部に
導出口9bを備えており、前記ファン11による排気ダ
クト12の出口側に前記導入口9aが接続しである。As shown in FIG. 3, the container 9 has a hollow structure with double walls as a whole, and has an inlet 9a at the top and an outlet 9b at the bottom. The inlet port 9a is connected to the outlet side of the inlet 9a.
このように構成しであるので、定着装置部分で発生した
加熱空気は、容器9の中空部を循環して導出口9bから
排出され、これによって内部に収納されたトナーは、加
熱によって半溶融状態となって粒子同士が付着しである
程度の大きさを有する粒状となり、多少容器を動かした
りしても、散乱して空気中に舞い上がるようなことはな
くなるので、後処理が容易となる。With this structure, the heated air generated in the fixing device circulates through the hollow part of the container 9 and is discharged from the outlet 9b, so that the toner stored inside is heated to a semi-molten state. As a result, the particles adhere to each other and become granular with a certain size, and even if the container is moved a little, they will not be scattered and thrown up into the air, making post-processing easier.
また、容器全体が加熱されるので、部分的にトナーが微
粒のまま維持されることがほとんどなく、これが飛散す
ることによる問題も起こらない。Furthermore, since the entire container is heated, the toner hardly remains as fine particles in some parts, and problems caused by the particles scattering do not occur.
さらに、この種トナー容器には、その内部を、光線を通
過させて、内部のトナー量を検知して容器の廃棄、交換
などの時期を知るように構成したものがあるが、このよ
うな場合には、容器内に飛散するトナーによる誤検知を
防止することも可能となる。Furthermore, some toner containers of this type are configured to allow light to pass through the inside of the container to detect the amount of toner inside and know when to discard or replace the container. In addition, it is also possible to prevent false detection due to toner scattering inside the container.
なお、容器の壁面間中空部分に加熱空気を導入する上部
隅部の導入口9aに対して、排出する導出口9bを、三
次元的に対角位置に設けることによって、加熱空気を中
空部内部に均一に還流させて全体を一様に加熱でき、局
部的にトナーの大粒子化が妨げられるのを可及的に防止
できる。Note that by providing an outlet 9b for discharging heated air at a diagonal position three-dimensionally with respect to an inlet 9a at the upper corner for introducing heated air into the hollow part between the walls of the container, the heated air can be drawn into the hollow part. By uniformly refluxing the toner, the entire toner can be heated uniformly, and local disturbances in the formation of large toner particles can be prevented as much as possible.
(3)発明の詳細
な説明したように、トナーを回収する容器を2重構造に
して、その内部中空部分に、定着装置から出る加熱空気
を導入することによって、極微粒状のトナーが適宜内ま
って比較的大きい粒子状になり、しかも、このさい容器
内のトナーをすべて確実に粒状化出来るので、容器の交
換、内容物の廃棄などの処理が容易で、特段複雑な機構
を附加する必要がなく、コスト面でち有利である。(3) As described in detail of the invention, by making the container for collecting toner double-layered and introducing heated air from the fixing device into the internal hollow part, ultrafine toner particles are appropriately collected inside the container. It becomes relatively large particles, and all of the toner in the container can be reliably granulated at this time, so it is easy to replace the container and dispose of the contents, and there is no need to add a particularly complicated mechanism. It is advantageous in terms of cost.
第1図は本発明を適用した画像形成装置の一例を示す画
像形成装置の概略正面図、
第2図は定着装置からトナー回収容期に加熱空気を案内
する仕方を示す模式図、
第3図はトナー回収容期を示す斜面図である。
1・・・感光体、9・・・トナー容器、10・・・クリ
ーナ、11・・・ファン、12・・・ダクト、9a・・
・加熱空気導入口、9b・・・同導出口。
第
図FIG. 1 is a schematic front view of an image forming apparatus that shows an example of an image forming apparatus to which the present invention is applied; FIG. 2 is a schematic diagram showing how heated air is guided from the fixing device during the toner recovery period; FIG. 3 FIG. 2 is a perspective view showing a toner collection period. DESCRIPTION OF SYMBOLS 1... Photoreceptor, 9... Toner container, 10... Cleaner, 11... Fan, 12... Duct, 9a...
・Heated air inlet, 9b... same outlet. Diagram
Claims (2)
した後、このトナーをトナー回収容器に案内貯溜する画
像形成装置のトナー回収装置において、該トナー回収容
器を2重壁面に形成するとともに、定着装置部位で発生
する加熱空気を前記容器の2重壁面間の中空部に供給す
るトナー回収装置。(1) In a toner recovery device of an image forming apparatus in which residual toner on the surface of an image carrier is removed by a cleaner and then the toner is guided and stored in a toner recovery container, the toner recovery container is formed with a double wall surface, and the toner is fixed. A toner recovery device that supplies heated air generated in the device portion to a hollow portion between the double walls of the container.
を、中空部に案内する導入口を該容器の一つの隅部に、
排出させる導出口を、前記導入口に対して三次元的に対
角位置に配設してなる特許請求の範囲第1項記載のトナ
ー回収装置。(2) The toner collection and storage period is formed into a substantially rectangular parallelepiped shape, and an inlet for guiding heated air into the hollow part is provided in one corner of the container;
2. The toner recovery device according to claim 1, wherein the outlet for discharging the toner is arranged three-dimensionally diagonally with respect to the inlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17288789A JPH0338683A (en) | 1989-07-06 | 1989-07-06 | Toner recovery device of image forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17288789A JPH0338683A (en) | 1989-07-06 | 1989-07-06 | Toner recovery device of image forming device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0338683A true JPH0338683A (en) | 1991-02-19 |
Family
ID=15950166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17288789A Pending JPH0338683A (en) | 1989-07-06 | 1989-07-06 | Toner recovery device of image forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0338683A (en) |
-
1989
- 1989-07-06 JP JP17288789A patent/JPH0338683A/en active Pending
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