JPH0333886A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPH0333886A JPH0333886A JP1168736A JP16873689A JPH0333886A JP H0333886 A JPH0333886 A JP H0333886A JP 1168736 A JP1168736 A JP 1168736A JP 16873689 A JP16873689 A JP 16873689A JP H0333886 A JPH0333886 A JP H0333886A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- photosensitive body
- ozone
- image forming
- ozonolysis agent
- 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.)
- Granted
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 5
- 108091008695 photoreceptors Proteins 0.000 claims description 32
- 238000005949 ozonolysis reaction Methods 0.000 abstract 5
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、レーザを用いたプリンタや複写機やファクシ
ミリ等の静電記録方式による画像形成装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an image forming apparatus using an electrostatic recording method, such as a printer using a laser, a copying machine, or a facsimile.
従来の 術及び課題
一般に、この種の画像形成装置では、チャージャからの
コロナ放電により感光体に−様な電荷を与え、その後露
光することにより潜像を形成し、さらに現像・転写・定
着というプロセスによって用紙に記録を行なっている。Conventional Techniques and Problems Generally, in this type of image forming apparatus, a corona discharge from a charger applies a -like charge to a photoreceptor, and then it is exposed to light to form a latent image, and then processes of development, transfer, and fixing are performed. Records are made on paper using
このプロセスにおいて、チャージャからのコロナ放電時
に、その高電位のために空気が反応してオゾンが発生す
る。このオゾンは、そのままにしておくと感光体を劣化
させる等の害があるため、機外へ放出する必要がある。In this process, during the corona discharge from the charger, the air reacts and generates ozone due to its high potential. If this ozone is left as it is, it will cause harm such as deteriorating the photoreceptor, so it must be released outside the machine.
一方、最近の環境基準により、オゾン濃度に対する規制
もきびしくなっており、画像形成装置においても強力な
オゾン除去装置を備えざるを得むくなっている。On the other hand, due to recent environmental standards, regulations regarding ozone concentration have become stricter, and image forming apparatuses have no choice but to be equipped with powerful ozone removal devices.
従来の画像形成装置では、例えば特開昭56−1424
8号公報に開示されているように、機内の冷却も兼ねる
排気ファンの上流側または下流側の近傍に、活性炭等に
よるオゾンフィルタを設置し、オゾンの吸着除去を行な
っていた。In conventional image forming apparatuses, for example, Japanese Patent Laid-Open No. 56-1424
As disclosed in Publication No. 8, an ozone filter made of activated carbon or the like is installed near the upstream or downstream side of an exhaust fan that also serves to cool the inside of the machine to adsorb and remove ozone.
しかし、このような構造では1次のような問題点があっ
た。However, such a structure has a first-order problem.
■ オゾンフィルタが機内に単独で取り付けられるため
、その交換が煩わしい。■ Since the ozone filter is installed separately inside the aircraft, it is cumbersome to replace it.
■ オゾンフィルタの設置場所が排気ファンの近傍に限
定されてしまう。■ The installation location of the ozone filter is limited to the vicinity of the exhaust fan.
■ オゾンフィルタを通して排気するため、排気ファン
の流量損失が大きくなってしまう。その結果、大型の排
気ファンを使用せざるを得なくなる。■ Exhaust air is passed through an ozone filter, which increases the flow loss of the exhaust fan. As a result, a large exhaust fan must be used.
■ フィルタ構造のため、風切り音が大きく騒音が大き
くなる。■ Due to the filter structure, there is a lot of wind noise and noise.
そこで、このような問題点を解決するものとして、オゾ
ン分解剤を専用のケースに収納し、そのケースごとクリ
ーニングユニット等の交換ユニットに取り付けるものが
提案されているが、これによると、オゾン分解剤収納ケ
ースの設置に場所をとり、特に小型の画像形成装置では
その設置に苦慮していた。Therefore, as a solution to this problem, it has been proposed to store the ozone decomposer in a special case and attach the case to a replacement unit such as a cleaning unit. The storage case takes up a lot of space, and it is difficult to install the storage case, especially in small image forming apparatuses.
本発明は、前記■ないし■の問題が無いことは勿論のこ
と、オゾン分解剤の設置にも専用のケース及びスペース
を要しない画像形成装置を提供することを目的とする。An object of the present invention is to provide an image forming apparatus that does not have the above-mentioned problems (1) and (2), and also does not require a dedicated case and space for installing an ozone decomposer.
課題を解決するための手段
この目的を達成するため、本発明では、感光体内にオゾ
ン分解剤を収納したものである。Means for Solving the Problems In order to achieve this object, the present invention includes an ozonolytic agent housed within the photoreceptor.
珪−一里
感光体の周辺で発生するオゾンを、該感光体内のオゾン
分解剤で直ちに分解できる。オゾン分解剤は、感光体と
共に交換できる。Ozone generated around the silicon-Ichiri photoreceptor can be immediately decomposed by the ozone decomposer inside the photoreceptor. The ozonolytic agent can be replaced along with the photoreceptor.
実施例 次に、本発明の一実施例を図面に従い詳細に説明する。Example Next, one embodiment of the present invention will be described in detail with reference to the drawings.
第1図は本発明を適用したレーザプリンタの概要構成図
で、図中10はプリンタ本体、11は該プリンタ本体1
0に装填された給紙カセットである。この給紙カセット
11から給紙装置12によって矢印入方向に給送された
用紙13は、レジストローラ対14によってタイミング
をとられてドラム状の感光体15の下側に搬送される。FIG. 1 is a schematic configuration diagram of a laser printer to which the present invention is applied.
This is a paper feed cassette loaded with 0. The paper 13 fed from the paper feed cassette 11 in the direction of the arrow by the paper feed device 12 is conveyed to the lower side of the drum-shaped photoreceptor 15 at the right timing by a pair of registration rollers 14 .
感光体15は時計方向に回転駆動され、その際帯電チャ
ージャ16によるコロナ放電によって表面を帯電され、
レーザ光学系エフからのレーザ光を照射されて感光体1
5上に静電潜像が形成される。この潜像は現像装置18
を通るときトナーによって可視像化され、この可視像は
感光体15上に搬送されてきた用紙13の下面に転写チ
ャージャ19によるコロナ放電により転写される。その
用紙13は、定着装W120へ搬送されて可視像を定着
される。そして、定着装[20を出た用紙13は排紙ロ
ーラ21によって矢印B方向の排紙部22へ排出される
。一方、可視像転写後の感光体15は、クリーニングブ
レード23を有するクリーニング装置24によって残留
トナーを除去され、除電ブラシ25で除電作用を受ける
。感光体15から除去されたトナーは回収ローラ26に
よってトナー回収タンク27に回収され、ここに収容さ
れる。The photoreceptor 15 is rotated clockwise, and at this time, the surface is charged by corona discharge by the charger 16.
Photoconductor 1 is irradiated with laser light from laser optical system F.
An electrostatic latent image is formed on 5. This latent image is transferred to the developing device 18.
When the paper 13 passes through the photoreceptor 15, the toner forms a visible image, and this visible image is transferred to the lower surface of the paper 13 conveyed onto the photoreceptor 15 by corona discharge by the transfer charger 19. The paper 13 is conveyed to the fixing device W120 and the visible image is fixed thereon. Then, the paper 13 that has left the fixing device [20] is discharged to a paper discharge section 22 in the direction of arrow B by a paper discharge roller 21. On the other hand, residual toner is removed from the photoreceptor 15 after the visible image has been transferred by a cleaning device 24 having a cleaning blade 23 , and a charge removal action is performed by a charge removal brush 25 . The toner removed from the photoreceptor 15 is collected by a collection roller 26 into a toner collection tank 27 and stored there.
感光体15内には、第2図に示すようにオゾン分解剤2
8が収納されている。このオゾン分解剤28としては、
チルペロイド等のゲル状の揮発性オゾン分解剤を使用す
ることが好ましい、また。Inside the photoreceptor 15, as shown in FIG.
8 is stored. As this ozone decomposer 28,
It is also preferred to use volatile ozonolytic agents in the form of a gel, such as tilpeloid.
その寿命は、感光体15の寿命と同程度かそれよりやや
長いものとする。オゾン分解剤28は感光体15内の中
央部に収納されているため、感光体15内の両端部は揮
発室29・30となっている。Its lifespan is equal to or slightly longer than the lifespan of the photoreceptor 15. Since the ozone decomposing agent 28 is stored in the center of the photoreceptor 15, both ends of the photoreceptor 15 are volatilization chambers 29 and 30.
感光体15の一端の盲端部31.及び該感光体15の他
端開口を塞ぐ蓋板32には、その円周方向に第3図及び
第4図に示すように多数の通気孔33・34が設けられ
ている。盲端部31の外面には軸部35が一体に突設さ
れ、また蓋板32の外面にはギア36が固着され、感光
体15はその両端を軸受37・38によって回転自在に
支承される。Blind end portion 31 at one end of the photoreceptor 15. The cover plate 32 that closes the opening at the other end of the photoreceptor 15 is provided with a large number of ventilation holes 33 and 34 in the circumferential direction thereof, as shown in FIGS. 3 and 4. A shaft portion 35 is integrally protruded from the outer surface of the blind end portion 31, a gear 36 is fixed to the outer surface of the cover plate 32, and the photoreceptor 15 is rotatably supported at both ends by bearings 37 and 38. .
従って、オゾン分解剤28は、通気孔33・34から感
光体15の両端外方へと揮発し、該感光体15の周辺で
発生したオゾンを直ちに分解する。Therefore, the ozone decomposing agent 28 volatilizes outward from both ends of the photoreceptor 15 through the vent holes 33 and 34, and immediately decomposes the ozone generated around the photoreceptor 15.
感光体15を交換することによってオゾン分解剤28も
同時に交換できる。オゾン分解剤28の寿命は、その充
填量や通気孔33・34の大きさによって調整できる。By replacing the photoreceptor 15, the ozone decomposer 28 can also be replaced at the same time. The life of the ozone decomposer 28 can be adjusted by its filling amount and the sizes of the ventilation holes 33 and 34.
この寿命を、感光体15の寿命と同程度かそれよりやや
長いものとすることにより、その交換回数の低減、ラン
ニングコストダウンが図れる。By making this lifespan similar to or slightly longer than the lifespan of the photoreceptor 15, it is possible to reduce the number of replacements and to reduce running costs.
なお、オゾン分解剤28を中空にして感光体上5内に円
筒状に充填すれば、その揮発面積を大きくすることがで
きる。また、両側の通気孔33・34の一方にフィン状
の部材を設け、感光体15の回転に伴いそのフィン状部
材を設けた通気孔から空気を吸入し、他方の通気孔から
排気できるようにすれば、オゾン分解剤28の揮発を促
進できる。Note that if the ozonolytic agent 28 is made hollow and filled in a cylindrical shape on the photoreceptor 5, the volatilization area can be increased. Further, a fin-shaped member is provided in one of the vent holes 33 and 34 on both sides, and as the photoreceptor 15 rotates, air is sucked in through the vent provided with the fin-shaped member and exhausted from the other vent hole. By doing so, the volatilization of the ozone decomposing agent 28 can be promoted.
発明の効果
本発明によれば、感光体内部にオゾン分解剤を収納しで
あるため、オゾン分解剤のための専用スペースが不要で
あり、しかもオゾン分解剤が空気流の妨げになることも
ない。また5オゾン分解剤を感光体の交換に伴い同時に
交換でき、その交換の手間が省ける。Effects of the Invention According to the present invention, since the ozone decomposer is stored inside the photoreceptor, there is no need for a dedicated space for the ozone decomposer, and the ozone decomposer does not obstruct airflow. . Furthermore, the ozone decomposer can be replaced at the same time as the photoreceptor is replaced, which saves time and effort.
第1図は本発明の一実施例であるレーザプリンタの概要
断面図、第2図はその感光体の断面図。
第3図は該感光体の全体斜視図、第4図はその一部の斜
視図である。
15・・・・・・・・・感光体
16・・・・・・・・・帯電チャージャ19・・・・・
・・・・転写チャージャ28・・・・・・・・・オゾン
分解剤
第
図
第2図
9
15
3すFIG. 1 is a schematic sectional view of a laser printer according to an embodiment of the present invention, and FIG. 2 is a sectional view of its photoreceptor. FIG. 3 is an overall perspective view of the photoreceptor, and FIG. 4 is a partial perspective view thereof. 15......Photoreceptor 16...Charger 19...
...Transfer charger 28...Ozone decomposer Fig. 2 Fig. 9 15 3
Claims (1)
いる画像形成装置において、前記感光体内にオゾン分解
剤を収納したことを特徴とする、画像形成装置。An image forming apparatus that uses a corona discharge generating means in the process of forming an image on a photoreceptor, characterized in that an ozone decomposing agent is housed within the photoreceptor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1168736A JP2866106B2 (en) | 1989-06-30 | 1989-06-30 | Image forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1168736A JP2866106B2 (en) | 1989-06-30 | 1989-06-30 | Image forming device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0333886A true JPH0333886A (en) | 1991-02-14 |
JP2866106B2 JP2866106B2 (en) | 1999-03-08 |
Family
ID=15873466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1168736A Expired - Lifetime JP2866106B2 (en) | 1989-06-30 | 1989-06-30 | Image forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2866106B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5597768U (en) * | 1978-12-26 | 1980-07-07 | ||
JPS61193486U (en) * | 1985-05-27 | 1986-12-02 |
-
1989
- 1989-06-30 JP JP1168736A patent/JP2866106B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5597768U (en) * | 1978-12-26 | 1980-07-07 | ||
JPS61193486U (en) * | 1985-05-27 | 1986-12-02 |
Also Published As
Publication number | Publication date |
---|---|
JP2866106B2 (en) | 1999-03-08 |
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