JPH04274260A - Evacuation and cleaning device for electrophotography applying equipment - Google Patents
Evacuation and cleaning device for electrophotography applying equipmentInfo
- Publication number
- JPH04274260A JPH04274260A JP3034854A JP3485491A JPH04274260A JP H04274260 A JPH04274260 A JP H04274260A JP 3034854 A JP3034854 A JP 3034854A JP 3485491 A JP3485491 A JP 3485491A JP H04274260 A JPH04274260 A JP H04274260A
- Authority
- JP
- Japan
- Prior art keywords
- dust
- exhaust
- ozone
- cleaning device
- electrostatic precipitator
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 13
- 239000000428 dust Substances 0.000 claims abstract description 75
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 48
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000012717 electrostatic precipitator Substances 0.000 claims description 30
- 238000009423 ventilation Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 3
- 239000012716 precipitator Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、電子写真複写機， レ
ーザプリンタ， ファクシミリなどの電子写真応用機器
に組み込んで使用する排気清浄装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust gas cleaning device that is incorporated into electrophotographic equipment such as electrophotographic copying machines, laser printers, and facsimile machines.
【０００２】0002
【従来の技術】頭記した電子写真応用機器においては、
静電潜像の形成， 転写にコロナ放電を利用して静電荷
を付与するようにしており、このために機器内部にオゾ
ンが発生する。また、前記の静電潜像を現像するために
微粉のトナーを使用しており、紙面への転写，用紙の引
出しなどの際にトナー， 紙粉が粉塵となって機器内部
に飛散する。そこで、従来の電子写真応用機器では、機
器本体の排気口に排気ファンと一緒にオゾンの分解，
ないし吸着物質を被着， 含浸させるなどしてオゾン除
去機能を持たせたフィルタを設置し、機器内部に発生し
たオゾン， トナー粉塵をフィルタにより排気空気中か
ら除去して清浄処理するようにしている。[Prior Art] In the electrophotographic application equipment mentioned above,
Corona discharge is used to apply an electrostatic charge to form and transfer an electrostatic latent image, which generates ozone inside the device. In addition, fine powder toner is used to develop the electrostatic latent image, and when the image is transferred to a paper surface or the paper is pulled out, the toner and paper powder become dust and scatter inside the device. Therefore, in conventional electrophotographic equipment, an exhaust fan is installed at the exhaust port of the equipment to decompose ozone.
A filter is installed that has an ozone removal function by coating or impregnating it with an adsorbent substance, and the ozone and toner dust generated inside the equipment are removed from the exhaust air and cleaned. .
【０００３】0003
【発明が解決しようとする課題】ところで、前記のよう
にフィルタ単独でのオゾン， 粉塵処理方式では、フィ
ルタの処理能力に限界があって排気空気の粉塵，オゾン
濃度を十分低下させることが困難である他、特にフィル
タはトナーなどの粉塵が表面を覆うとオゾン除去能力も
急速に低下するため、フィルタ交換などのメンテナンス
作業を頻繁に行う必要があって厄介である。しかも、昨
今では事務用機器に関しても労働環境汚染に対する規制
値がますます厳しくなる傾向にあり、この観点から電子
写真応用機器の排気清浄装置についても、その処理能力
の向上化を図ることが重要な課題となっている。[Problem to be Solved by the Invention] However, as mentioned above, in the ozone and dust treatment method using a filter alone, there is a limit to the processing capacity of the filter, and it is difficult to sufficiently reduce the dust and ozone concentration in the exhaust air. In addition, if the surface of the filter is covered with dust such as toner, its ozone removal ability will rapidly decrease, which is troublesome as maintenance work such as filter replacement must be performed frequently. Moreover, in recent years, regulatory values for workplace pollution have become increasingly strict even for office equipment, and from this perspective, it is important to improve the processing capacity of exhaust purification devices for electrophotographic equipment. It has become a challenge.
【０００４】本発明は上記の点にかんがみなされたもの
であり、従来のフィルタ単独の方式と比べて、粉塵，
並びにオゾン除去に高い処理能力が発揮でき、かつメン
テナンス作業も簡単に行えるようにした電子写真応用機
器の排気清浄装置を提供すことを目的とする。[0004] The present invention has been made in consideration of the above points, and compared to the conventional filter-only system, it reduces dust,
Another object of the present invention is to provide an exhaust gas cleaning device for electrophotographic equipment that can exhibit high processing capacity for ozone removal and that can be easily maintained.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明の排気清浄装置は、電子写真応用機器の排気
口内部に排気ファンと並べて電気集塵機，およびその下
流側にオゾン除去物質を含むオゾン除去フィルタを並置
配備して構成するものとする。[Means for Solving the Problems] In order to solve the above problems, the exhaust gas cleaning device of the present invention includes an electrostatic precipitator arranged in line with an exhaust fan inside the exhaust port of an electrophotographic application device, and an ozone removing substance installed downstream of the electrostatic precipitator. ozone removal filters are arranged side by side.
【０００６】ここで、前記構成おけるオゾン除去フィル
タとしては、網目状活性炭フィルタと粒状活性炭を組合
わせたものを採用するのが効果的である。また、電気集
塵機の集塵極に付着したダストの回収性を高めにために
、ダストを集塵極から剥離，落下させる手段として、電
気集塵機に加振用バイブレータを付設するのがよい。
さらに、電気集塵機での粉塵回収効率を高めてオゾン除
去フィルタの粉塵による目詰まり，オゾン除去機能低下
の防止を図るために、電気集塵機の電極に印加する電圧
を短い周期でオン， オフし、かつ印加電圧のオフ時に
排気通風を停止するよう運転制御することができる。[0006] Here, as the ozone removal filter in the above structure, it is effective to employ a combination of a mesh activated carbon filter and granular activated carbon. Further, in order to improve the recovery of dust adhering to the dust collecting electrode of the electric dust collector, it is preferable to attach an exciting vibrator to the electric dust collector as a means for peeling off and dropping the dust from the dust collecting electrode. Furthermore, in order to increase the dust collection efficiency of the electrostatic precipitator and prevent clogging of the ozone removal filter due to dust and deterioration of the ozone removal function, the voltage applied to the electrodes of the electrostatic precipitator is turned on and off in short cycles, and The operation can be controlled so that the exhaust ventilation is stopped when the applied voltage is turned off.
【０００７】[0007]
【作用】上記構成のように、排気口にオゾン除去フィル
タと組合わせてその上流側に電気集塵機を設置すること
により、電子写真応用機器の内部に発生したトナーなど
の粉塵の大半が排気空気と一緒に電気集塵機を通過する
過程で集塵極上に捕集され、電気集塵機から排出する排
気空気中の粉塵濃度が大幅に減少する。なお、電気集塵
機で捕集した粉塵は集塵機のホッパにセットしたダスト
回収袋などに回収して廃棄処分される。これにより、電
気集塵機の下流側に配備したオゾン除去フィルタは、粉
塵によって目詰まりすることが殆どなくなるので長期使
用期間に亙って高いオゾン除去機能を維持し、排気空気
中のオゾン濃度を大幅に低減させる。[Function] As in the above configuration, by installing an electrostatic precipitator in combination with an ozone removal filter at the exhaust port and upstream thereof, most of the dust such as toner generated inside the electrophotographic equipment is removed from the exhaust air. During the process of passing through the electrostatic precipitator, the dust is collected on the dust collecting pole, and the concentration of dust in the exhaust air discharged from the electrostatic precipitator is greatly reduced. The dust collected by the electrostatic precipitator is collected in a dust collection bag set in the hopper of the dust collector and disposed of. As a result, the ozone removal filter installed downstream of the electrostatic precipitator is almost never clogged with dust, maintaining high ozone removal performance over a long period of use, and significantly reducing the ozone concentration in the exhaust air. reduce
【０００８】ここで、前記のオゾン除去フィルタとして
、比較的メッシュサイズの大きな網目状活性炭フィルタ
と粒径の小さい粒状活性炭を組合わせて構成したものを
採用することにより、電気集塵機で取り残した微量の粉
塵による目詰まりを防ぎながら高いオゾン除去効率が得
られる。また、電気集塵機に付設したバイブレータは、
集塵極に振動を与え、極板上に付着堆積したダストを強
制的に剥離，落下させるように働く。さらに、電気集塵
機への電圧印加を例えば数秒程度の短周期でオン， オ
フ制御し、かつ印加電圧のオン，オフに同期させて電圧
オフ時に排気通風も停止せることにより、印加電圧オン
時にコロナ放電の作用で帯電，凝集した粉塵粒子は、印
加電圧オフ時（集塵極との間にクーロン力が働かない）
に集塵極に捕集されずに自重で下方へ落下して直接回収
されることになり、これにより集塵極に付着，堆積する
ダストの割合が減じてダストの回収効率が高まる。[0008] Here, by employing, as the ozone removal filter, a filter constructed by combining a reticulated activated carbon filter with a relatively large mesh size and granular activated carbon with a small particle size, the trace amount left behind by the electrostatic precipitator can be removed. High ozone removal efficiency can be achieved while preventing clogging due to dust. In addition, the vibrator attached to the electric precipitator
It works by applying vibration to the dust collecting electrode to forcibly peel off the dust that has accumulated on the electrode plate and make it fall. Furthermore, by controlling the voltage application to the electrostatic precipitator on and off in short cycles of, for example, several seconds, and by synchronizing the applied voltage on and off and stopping the exhaust ventilation when the voltage is turned off, corona discharge can be prevented when the applied voltage is turned on. Dust particles that are charged and aggregated due to the action of
Instead of being collected by the dust collecting electrode, the dust falls downward under its own weight and is directly collected, which reduces the proportion of dust that adheres to and accumulates on the dust collecting electrode, increasing the dust collection efficiency.
【０００９】[0009]
【実施例】以下本発明の実施例を図面に基づいて説明す
る。まず、図１，図２において、１は電子写真応用機器
、２は機器本体１の外被ケースに開口した排気口であり
、該排気口２の内部には排気ファン３と並べて、上流側
から順に電気集塵機４，およびオゾン除去フィルタ５が
並置配備されており、さらに電気集塵機４とフィルタ５
との間には排気通風路の開閉シャッタ６を備えている。
また、電気集塵機４は、排気流に沿って平行に並ぶ複数
枚の集塵極４ａと、集塵極４ａの間に配した放電極４ｂ
からなり、各電極４ａ，４ｂが高圧直流電源７に接続さ
れている。なお、８は電気集塵機４のホッパ部４ｃに取
付けたダスト回収袋、９は電気集塵機４の側壁に取付け
た加振用バイブレータ、１０は前記シャッタ６の開閉駆
動部である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. First, in FIGS. 1 and 2, 1 is an electrophotographic application device, 2 is an exhaust port opened in the outer case of the device main body 1, and inside the exhaust port 2, there is an exhaust fan 3, which is installed from the upstream side. An electrostatic precipitator 4 and an ozone removal filter 5 are arranged side by side in order, and the electrostatic precipitator 4 and filter 5
An opening/closing shutter 6 for the exhaust ventilation passage is provided between the exhaust ventilation passage and the exhaust ventilation passage. Further, the electric precipitator 4 includes a plurality of dust collecting electrodes 4a arranged in parallel along the exhaust flow, and a discharge electrode 4b arranged between the dust collecting electrodes 4a.
Each electrode 4a, 4b is connected to a high voltage DC power source 7. In addition, 8 is a dust collection bag attached to the hopper part 4c of the electrostatic precipitator 4, 9 is an excitation vibrator attached to the side wall of the electrostatic precipitator 4, and 10 is an opening/closing drive section for the shutter 6.
【００１０】また、前記のオゾン除去フィルタ５は図３
に示すような構成であり、前後端面を開口した筒形のフ
ィルタケース５ａの内部には、排気流の入口側から順に
オゾン吸着用の網目状活性炭フィルタ５ｂ，および２枚
のパンチングメタル５ｃが収容され、さらに２枚のパン
チングメタル５ｃの間にはオゾン吸着物質としての粒状
活性炭５ｄが充填されている。なお、網目状活性炭フィ
ルタ５ｂは、通気性を有する紙などを母材として、ここ
に活性炭の微粉を分散担持させたものであり、そのメッ
シュサイズ，開口率がトナーなどの粉塵で目詰まりを起
こさないように選定されている。また、粒状活性炭５ｄ
は充填層の厚さが５ｍｍ程度となるように充填されてい
る。かかる構成で、排気空気中に含まれているオゾンは
、排気空気がフィルタ５を通過する過程でまず網目状活
性炭フィルタ５ｂによりオゾンを粗吸着し、ここで吸着
し切れなかった残りのオゾンを後段の粒状活性炭５ｄで
ほぼ完全に吸着させる。なお、発明者の行った実験結果
によれば、網目状活性炭フィルタ５ｂのメッシュサイズ
，粒状活性炭５ｄの粒径を適正に選定して組合わせるこ
とにより、オゾン濃度０．５ 〜２．０ｐｐｍの空気を
風速１ｍ／ｓｅｃ でフィルタ４を通過させることでオ
ゾン濃度が０．０１５ 〜０．０２ｐｐｍ まで低下で
きることが確認されている。Further, the ozone removal filter 5 described above is shown in FIG.
The filter case 5a has a cylindrical shape with open front and rear end faces, and a mesh activated carbon filter 5b for adsorbing ozone and two punched metal sheets 5c are housed in this order from the exhaust flow inlet side. Further, granular activated carbon 5d as an ozone adsorbing material is filled between the two punched metals 5c. Note that the mesh activated carbon filter 5b is made of air-permeable paper or the like as a base material, on which activated carbon fine powder is dispersed and supported, and its mesh size and aperture ratio are such that it does not become clogged with dust such as toner. It has been selected that there will be no In addition, granular activated carbon 5d
is filled so that the thickness of the filling layer is about 5 mm. With this configuration, the ozone contained in the exhaust air is first coarsely adsorbed by the mesh activated carbon filter 5b during the process of the exhaust air passing through the filter 5, and the remaining ozone that was not completely adsorbed here is transferred to a subsequent stage. It is almost completely adsorbed with granular activated carbon 5d. According to the experimental results conducted by the inventor, by appropriately selecting and combining the mesh size of the mesh activated carbon filter 5b and the particle size of the granular activated carbon 5d, air with an ozone concentration of 0.5 to 2.0 ppm can be removed. It has been confirmed that the ozone concentration can be reduced to 0.015 to 0.02 ppm by passing through the filter 4 at a wind speed of 1 m/sec.
【００１１】次に、図１，図２に戻って排気清浄装置の
動作を説明すると、電子写真応用機器１の本体内部で発
生したオゾン，粉塵は排気空気と一緒に排気ファン３に
より排気口２に向けて排気送風される。ここで、排気空
気はまず電気集塵機４の中を流れ、この過程で排気空気
中に含まれいてる粉塵粒子がコロナ放電により帯電し、
かつ粉塵粒子同士が静電力により凝集しながらクーロン
力によって集塵極４ａに捕集され、その電極板上に付着
堆積する。また、電気集塵機４を通過して粉塵濃度が低
下した排気流は続いて後段のオゾン除去フィルタ５の中
を流れ、ここを通過する過程で排気流中に当初から含ま
れているオゾン，および電気集塵機４のコロナ放電で新
たに発生したオゾンがフィルタ５の活性炭に吸着される
。この結果、フィルタ５を通過した排気空気は粉塵，オ
ゾン濃度を殆ど含まない清浄空気となって排気口２より
周囲に放散する。Next, referring back to FIGS. 1 and 2, the operation of the exhaust purifying device will be explained. Ozone and dust generated inside the main body of the electrophotographic application equipment 1 are removed together with the exhaust air by the exhaust fan 3 through the exhaust port 2. Exhaust air is blown towards. Here, the exhaust air first flows through the electrostatic precipitator 4, and during this process, the dust particles contained in the exhaust air are charged by corona discharge.
Further, the dust particles are collected by the dust collection electrode 4a by the Coulomb force while coagulating with each other due to electrostatic force, and are deposited on the electrode plate. In addition, the exhaust gas whose dust concentration has been reduced by passing through the electrostatic precipitator 4 continues to flow through the subsequent ozone removal filter 5, and in the process of passing through this, ozone and electricity contained in the exhaust gas from the beginning are removed. Ozone newly generated by the corona discharge of the dust collector 4 is adsorbed by the activated carbon of the filter 5. As a result, the exhaust air that has passed through the filter 5 becomes clean air containing almost no dust or ozone concentration, and is dissipated into the surroundings through the exhaust port 2.
【００１２】一方、電気集塵機４の集塵極４ａに堆積し
たダストはバイブレータ９により与えられる加振力で電
極板から剥離して下方に落下し、ホッパ部４ｃを通じて
ダスト回収袋８の中に回収される。また、この場合に電
気集塵機４の電極に印加する電圧を例えば数秒間隔でオ
ン，オフ制御し、かつこのオン，オフに合わせて電圧オ
フ時にシャッタ６を閉じて排気通風を停止させることに
より、電圧オフとなる直前にコロナ放電の作用により帯
電，凝集（粒径１０μｍ程度のトナーの粉塵粒子は凝集
により１００μｍ程度の粒径となる）したダストは、電
圧オフに伴うクーロン力の消失により集塵極４ａに捕集
されずにそのまま自重で下方に落下してダスト回収袋８
に直接回収される。これにより、集塵極４ａに付着堆積
するダスト、つまり集塵極の極板から強制的に叩き落と
して回収するダストの割合が減るので、その分だけダス
トの回収効率が高まる。On the other hand, the dust accumulated on the dust collecting electrode 4a of the electric precipitator 4 is peeled off from the electrode plate by the excitation force given by the vibrator 9, falls downward, and is collected into the dust collection bag 8 through the hopper part 4c. be done. In this case, the voltage applied to the electrodes of the electrostatic precipitator 4 can be controlled to turn on and off at intervals of several seconds, for example, and the shutter 6 can be closed when the voltage is turned off to stop the exhaust ventilation. Immediately before the voltage is turned off, the dust that is charged and agglomerated due to the action of corona discharge (toner dust particles with a particle size of about 10 μm become a particle size of about 100 μm due to aggregation) is transferred to the dust collecting electrode due to the Coulomb force disappearing as the voltage is turned off. The dust is not collected by dust collection bag 8 and falls downward due to its own weight without being collected by dust collection bag 8.
will be collected directly. As a result, the proportion of dust that adheres to and accumulates on the dust collection electrode 4a, that is, the dust that is forcibly knocked off and collected from the electrode plate of the dust collection electrode, is reduced, so that the dust collection efficiency is increased accordingly.
【００１３】次に、図１の実施例における電気集塵機４
の集塵極４ａと放電極４ｂの配置を変えた応用実施例を
図４に示す。この実施例は集塵極４ａの極板を排気流の
流れに対しジグザク配置として機内に迷路状の通風路を
形成したものであり、これにより粉塵の捕集効率が図１
の配置と比べて向上する。Next, the electrostatic precipitator 4 in the embodiment of FIG.
FIG. 4 shows an applied example in which the arrangement of the dust collecting electrode 4a and the discharge electrode 4b is changed. In this embodiment, the electrode plates of the dust collecting electrode 4a are arranged in a zigzag manner with respect to the flow of the exhaust air to form a labyrinth-like ventilation passage inside the machine, thereby increasing the dust collection efficiency as shown in FIG.
It is improved compared to the arrangement of .
【００１４】[0014]
【発明の効果】本発明の排気清浄装置は、以上説明した
ように構成されているので、次記の効果を奏する。すな
わち、電子写真応用機器の排気口内部に排気ファンと並
べて電気集塵機， およびその下流側にオゾン除去物質
を含むオゾン除去フィルタを並置配備したことにより、
機器内部に発生したトナーなどの粉塵が殆ど電気集塵機
で捕集されるので、その後段に配置したオゾン除去フィ
ルタは粉塵で目詰まりを引き起こすことがなく、長期間
に亙ってオゾン除去機能を効果的に発揮できる。これに
より、作業環境汚染に対する粉塵，オゾン濃度の厳しい
規制も十分クリアして電子写真応用機器の排気空気を浄
化できる。また、電気集塵機で捕集したダストはダスト
回収袋などに回収して簡単に廃棄処分でき、かつフィル
タの粉塵による目詰まりも無くなるので、フィルタを単
独使用した従来の排気清浄装置と比べてメンテナンス性
も大幅に改善される。[Effects of the Invention] Since the exhaust gas cleaning device of the present invention is constructed as described above, it achieves the following effects. In other words, by placing an electrostatic precipitator alongside an exhaust fan inside the exhaust port of electrophotographic equipment, and an ozone removal filter containing an ozone removal substance downstream of the electrostatic precipitator,
Most of the toner and other dust generated inside the device is collected by the electrostatic precipitator, so the ozone removal filter placed after it will not be clogged with dust, and the ozone removal function will remain effective for a long time. can be demonstrated effectively. As a result, the exhaust air from electrophotographic equipment can be purified, sufficiently clearing strict regulations regarding dust and ozone concentrations for contaminating the working environment. In addition, the dust collected by the electrostatic precipitator can be easily disposed of by collecting it in a dust collection bag, etc., and the filter is not clogged with dust, making maintenance easier compared to conventional exhaust purification devices that use a filter alone. is also significantly improved.
【図１】本発明実施例の略示構成断面図[Fig. 1] A schematic cross-sectional view of the configuration of an embodiment of the present invention.
【図２】図１の
側面図[Figure 2] Side view of Figure 1
【図３】図１におけるオゾン除去フィルタの分解構造図
[Figure 3] Exploded structural diagram of the ozone removal filter in Figure 1
【図４】図１における電気集塵機の応用実施例を示す略
示構成断面図[Fig. 4] A schematic cross-sectional view showing an applied example of the electrostatic precipitator in Fig. 1.
１ 電子写真応用機器 ２ 排気口 ３ 排気ファン ４ 電気集塵機 ５ オゾン除去フィルタ ５ｂ 網目状活性炭フィルタ ５ｄ 粒状活性炭 ９ バイブレータ 1 Electrophotographic application equipment 2 Exhaust port 3 Exhaust fan 4 Electrostatic precipitator 5 Ozone removal filter 5b Mesh activated carbon filter 5d Granular activated carbon 9 Vibrator
Claims (4)
オゾンを排気空気中から除去する排気清浄装置であっ
て、機器本体の排気口内部に排気ファンと並べて電気集
塵機， およびその下流側にオゾン除去物質を含むオゾ
ン除去フィルタを並置配備したことを特徴とする電子写
真応用機器の排気清浄装置。[Claim 1] Dust generated inside electrophotographic equipment,
This is an exhaust purification device that removes ozone from exhaust air, and is characterized by having an electrostatic precipitator placed alongside an exhaust fan inside the exhaust port of the device body, and an ozone removal filter containing an ozone removal substance placed downstream of the electrostatic precipitator. Exhaust cleaning device for electrophotographic equipment.
オゾン除去フィルタが網目状活性炭フィルタと粒状活性
炭を組合わせたものであることを特徴とする電子写真応
用機器の排気清浄装置。2. The exhaust gas cleaning device according to claim 1,
An exhaust gas cleaning device for electrophotographic equipment, characterized in that the ozone removal filter is a combination of a mesh activated carbon filter and granular activated carbon.
電気集塵機の集塵極に付着したダストを集塵極から剥離
させる手段として、電気集塵機に加振用のバイブレータ
を付設したことを特徴とする電子写真応用機器の排気清
浄装置。3. The exhaust gas cleaning device according to claim 1,
An exhaust gas cleaning device for an electrophotographic application equipment, characterized in that an electrostatic precipitator is equipped with a vibrator for excitation, as a means for peeling off dust attached to the dust collecting electrode of the electrostatic precipitator.
電気集塵機の電極に印加する電圧を短い周期でオン，
オフし、かつ印加電圧のオフ時に排気通風を停止するよ
う運転制御することを特徴とする電子写真応用機器の排
気清浄装置。4. The exhaust gas cleaning device according to claim 1,
The voltage applied to the electrodes of the electrostatic precipitator is turned on in short cycles,
1. An exhaust gas cleaning device for electrophotographic equipment, characterized in that the exhaust ventilation is controlled to be turned off and the exhaust ventilation is stopped when the applied voltage is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3034854A JPH04274260A (en) | 1991-03-01 | 1991-03-01 | Evacuation and cleaning device for electrophotography applying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3034854A JPH04274260A (en) | 1991-03-01 | 1991-03-01 | Evacuation and cleaning device for electrophotography applying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04274260A true JPH04274260A (en) | 1992-09-30 |
Family
ID=12425767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3034854A Pending JPH04274260A (en) | 1991-03-01 | 1991-03-01 | Evacuation and cleaning device for electrophotography applying equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04274260A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010204529A (en) * | 2009-03-05 | 2010-09-16 | Ricoh Co Ltd | Dust removing device and image forming apparatus |
| US8611678B2 (en) | 2010-03-25 | 2013-12-17 | Apple Inc. | Grouping digital media items based on shared features |
| US9142253B2 (en) | 2006-12-22 | 2015-09-22 | Apple Inc. | Associating keywords to media |
| JP2016114819A (en) * | 2014-12-16 | 2016-06-23 | コニカミノルタ株式会社 | Image forming apparatus and image forming method |
| US9798744B2 (en) | 2006-12-22 | 2017-10-24 | Apple Inc. | Interactive image thumbnails |
| JP2018022130A (en) * | 2016-07-25 | 2018-02-08 | 株式会社リコー | Image forming apparatus |
-
1991
- 1991-03-01 JP JP3034854A patent/JPH04274260A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9142253B2 (en) | 2006-12-22 | 2015-09-22 | Apple Inc. | Associating keywords to media |
| US9798744B2 (en) | 2006-12-22 | 2017-10-24 | Apple Inc. | Interactive image thumbnails |
| US9959293B2 (en) | 2006-12-22 | 2018-05-01 | Apple Inc. | Interactive image thumbnails |
| JP2010204529A (en) * | 2009-03-05 | 2010-09-16 | Ricoh Co Ltd | Dust removing device and image forming apparatus |
| US8611678B2 (en) | 2010-03-25 | 2013-12-17 | Apple Inc. | Grouping digital media items based on shared features |
| JP2016114819A (en) * | 2014-12-16 | 2016-06-23 | コニカミノルタ株式会社 | Image forming apparatus and image forming method |
| JP2018022130A (en) * | 2016-07-25 | 2018-02-08 | 株式会社リコー | Image forming apparatus |
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