JPH05232811A - Electrophotographic device - Google Patents
Electrophotographic deviceInfo
- Publication number
- JPH05232811A JPH05232811A JP4070412A JP7041292A JPH05232811A JP H05232811 A JPH05232811 A JP H05232811A JP 4070412 A JP4070412 A JP 4070412A JP 7041292 A JP7041292 A JP 7041292A JP H05232811 A JPH05232811 A JP H05232811A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- lid
- developing device
- photoconductor
- key
- 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
Landscapes
- Dry Development In Electrophotography (AREA)
- Cleaning In Electrography (AREA)
- Electrophotography Configuration And Component (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
(57)【要約】
【目的】 好ましくないトナ−が現像器に補給されて異
常画像が発生したり、故障したりすることを防止する。
【構成】 感光体１１・帯電器１２・現像器１３・クリ
ーニング器１５を一つのケ−ス２１内に収納してプロセ
スユニット２０を構成する。そのプロセスユニット２０
に現像器１５内へ新しいトナ−を補給可能なトナ−補給
口２８とクリーニング器１５から廃トナ−を取り出し可
能なトナ−取出口２９を設けるとともに、そのトナ−補
給口２８とトナ−取出口２９を被う蓋３０を取り付けて
その蓋３０に鍵３１を取り付ける。そして、所定の者以
外が蓋３０を開いてそのトナ−補給を行うことを阻止す
る。
(57) [Abstract] [Purpose] To prevent an unfavorable toner from being replenished to the developing device and causing an abnormal image or a failure. [Structure] The process unit 20 is configured by accommodating the photoconductor 11, the charging device 12, the developing device 13, and the cleaning device 15 in one case 21. The process unit 20
Further, a toner replenishing port 28 for replenishing a new toner into the developing device 15 and a toner outlet 29 for taking out a waste toner from the cleaning device 15 are provided, and the toner replenishing port 28 and the toner outlet are provided. A lid 30 covering 29 is attached, and a key 31 is attached to the lid 30. Then, it is prevented that a person other than a predetermined person opens the lid 30 to supply the toner.
Description
【０００１】[0001]
【産業上の利用分野】この発明は、レ−ザを用いた、プ
リンタ・複写機・ファクシミリなど、電子写真方式（感
光体に形成した画像をシ−トに転写して記録を行う方
式）によりシ−トに記録を行う電子写真装置に関する。
詳しくは、現像器でトナ−を付着して感光体上の潜像を
可視像化するとともに、その可視像化した画像をシ−ト
に転写後前記感光体上の残留トナ−をクリーニング器で
清掃して廃トナ−タンク内に貯蔵する電子写真装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is based on an electrophotographic system (a system for transferring an image formed on a photoconductor to a sheet for recording) using a laser, such as a printer, a copying machine and a facsimile. The present invention relates to an electrophotographic apparatus that records on a sheet.
Specifically, a toner is attached by a developing device to visualize the latent image on the photoconductor, and the visible image is transferred to a sheet, and the residual toner on the photoconductor is cleaned. The present invention relates to an electrophotographic apparatus that is cleaned with a container and stored in a waste toner tank.
【０００２】[0002]
【従来の技術】従来、例えばレ−ザプリンタでは、消耗
品をユニット化して寿命がきたとき新しいものと簡単に
交換可能としていた。例えば現像器内のトナ−がなくな
ったとき、新しいものと交換して古いものは廃棄してい
た。しかし、使い捨てにすることは、自然環境保護と資
源保護に反する点からトナ−が無くなっても廃棄せず、
新しいトナ−を補給して続けて使用するようになってき
た。2. Description of the Related Art Conventionally, for example, in a laser printer, consumables have been unitized and can be easily replaced with a new one when the end of its life. For example, when the toner in the developing unit disappeared, the toner was replaced with a new one and the old one was discarded. However, disposing of it as a disposable item does not cause it to be discarded even if the toner is lost, because it is against the protection of the natural environment and the protection of resources.
The new toner has been replenished and used continuously.
【０００３】[0003]
【発明が解決しようとする課題】ところが、トナ−を補
給できるようにすると、現像器に廃トナ−タンクから取
り出した廃トナ−を入れたり、海賊トナ−を入れたりす
る者があり、そのため、異常画像が発生したり、故障し
たりすることがあった。However, if the toner can be replenished, there are some people who put the waste toner taken out from the waste toner tank or the pirate toner into the developing device. An abnormal image may be generated or it may break down.
【０００４】そこで、この発明の目的は、好ましくない
トナ−が現像器に補給されて異常画像が発生したり、故
障したりすることを防止することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to prevent undesired toner from being replenished to a developing device and causing an abnormal image or failure.
【０００５】[0005]
【課題を解決するための手段】そのため、請求項１に記
載のものでは、例えば以下の図示実施例のように、現像
器１３でトナ−を付着して感光体１１上の潜像を可視像
化するとともに、その可視像化した画像をシ−トに転写
後前記感光体１１上の残留トナ−をクリーニング器１５
で清掃して廃トナ−タンク１５ａ内に貯蔵する電子写真
装置において、前記現像器１３内に新しいトナ−を補給
可能とするとともに、所定の者以外がそのトナ−補給を
行うことを阻止する鍵３１を備えてなる、ことを特徴と
する。Therefore, according to the present invention, the latent image on the photoconductor 11 is made visible by attaching a toner in the developing device 13 as shown in the following illustrated embodiment. After the image is formed and the visible image is transferred to the sheet, the residual toner on the photoconductor 11 is cleaned by a cleaning device 15.
In the electrophotographic apparatus which is cleaned by the above and stored in the waste toner tank 15a, a key that enables a new toner to be replenished in the developing device 13 and prevents a person other than a predetermined person from replenishing the toner. 31 is provided.
【０００６】請求項２に記載のものでは、例えば以下の
図示実施例のように、請求項１に記載の電子写真装置に
おいて、前記トナ−補給を行うトナ−補給口２８を有
し、そのトナ−補給口２８を塞ぐ蓋３０を設けるととも
に、その蓋３０にそれを開くことを阻止して所定の者以
外が前記トナ−補給を行うことを阻止する前記鍵３１を
備えてなる、ことを特徴とする。According to a second aspect of the present invention, for example, as in the following illustrated embodiment, the electrophotographic apparatus of the first aspect has a toner replenishing port 28 for replenishing the toner, and the toner replenishing port 28 is provided. -A lid 30 for closing the supply port 28 is provided, and the cover 30 is provided with the key 31 for preventing the lid 30 from being opened to prevent the person other than a predetermined person from supplying the toner. And
【０００７】また、請求項３に記載のものでは、例えば
以下の図示実施例のように、請求項１に記載の電子写真
装置において、前記現像器１３の全部またはホッパ部１
３ａだけのように、その一部を取り出し可能とするとと
もに、その取り出し口３４を塞ぐ蓋３０を設け、その蓋
３０にそれを開くことを阻止して所定の者以外が前記ト
ナ−補給を行うことを阻止する前記鍵３１を備えてな
る、ことを特徴とする。According to a third aspect of the invention, in the electrophotographic apparatus according to the first aspect, for example, as in the following illustrated embodiment, all of the developing device 13 or the hopper section 1 is used.
3a only, a part of which can be taken out, a lid 30 for closing the take-out port 34 is provided, and the lid 30 is prevented from being opened to replenish the toner by a person other than a predetermined person. It is characterized by comprising the key 31 for preventing the above.
【０００８】[0008]
【作用】そして、トナ−補給時に鍵３１を開けて現像器
１３内に新しいトナ−を補給し、必要に応じて廃トナ−
を廃棄した後蓋３０を閉めて鍵３１を掛け、所定の者以
外がその蓋３０を開いてトナ−補給を行うことを阻止す
る。When the toner is replenished, the key 31 is opened to replenish the developing device 13 with a new toner, and the waste toner is replenished if necessary.
After discarding, the lid 30 is closed and the key 31 is locked to prevent anyone other than a predetermined person from opening the lid 30 to replenish the toner.
【０００９】[0009]
【実施例】以下、図面を参照しつつ、この発明の実施例
について説明する。図８は、この発明の一実施例である
レ−ザプリンタの全体概略構成図である。図中符号１０
で示すものは、装置本体である。装置本体１０内には、
ほぼ中央にドラム状の感光体１１を設ける。その感光体
１１のまわりには、矢印で示す駆動方向に順に、帯電器
１２、現像器１３、転写器１４、クリーニング器１５を
配置する。そして、帯電器１２および現像器１３の上側
には光書込み器１６を、クリーニング器１５の図中左方
には定着器１７を、それぞれ配置し、装置本体１０の下
部には、給紙カセット１８を着脱自在に取り付ける。Embodiments of the present invention will be described below with reference to the drawings. FIG. 8 is an overall schematic configuration diagram of a laser printer which is an embodiment of the present invention. Reference numeral 10 in the figure
What is indicated by is the apparatus main body. In the device body 10,
A drum-shaped photoconductor 11 is provided at approximately the center. Around the photoconductor 11, a charging device 12, a developing device 13, a transfer device 14, and a cleaning device 15 are arranged in order in the driving direction indicated by the arrow. An optical writing device 16 is arranged above the charging device 12 and the developing device 13, and a fixing device 17 is arranged on the left side of the cleaning device 15 in the figure. Is detachably attached.
【００１０】そして、給紙カセット１８からシ−トを送
り出して感光体１１の下側に搬送する。感光体１１は、
矢示するように時計方向に駆動し、その際、帯電器１２
によって表面を一様に帯電し、光書込み器１６からのレ
−ザ光で感光体１１上に静電潜像を形成する。この潜像
は、現像器１３を通るときトナーによって可視像化す
る。そして、この可視像は、給紙カセット１８から感光
体１１の下側に搬送されてきたシ−トの上面に転写器１
４により転写する。その転写したシ−トを定着器１７に
搬送して転写画像を定着し、排紙スタック部１９へ排出
する。Then, the sheet is sent out from the paper feed cassette 18 and conveyed to the lower side of the photoconductor 11. The photoconductor 11 is
Driving in the clockwise direction as shown by the arrow, at that time, the charger 12
The surface is uniformly charged by the laser light from the optical writing device 16 to form an electrostatic latent image on the photoconductor 11. This latent image is visualized by toner as it passes through the developing device 13. Then, this visible image is transferred onto the upper surface of the sheet conveyed from the paper feed cassette 18 to the lower side of the photoconductor 11 by the transfer device 1.
4 transfer. The transferred sheet is conveyed to the fixing device 17, the transferred image is fixed, and the sheet is discharged to the paper discharge stack section 19.
【００１１】ところで、前記感光体１１・帯電器１２・
現像器１３・クリーニング器１５は、図７に示すよう
に、これらを一つのケ−ス２１内に収納してプロセスユ
ニット２０を構成する。ケ−ス２１内の略中央には、ド
ラム状の感光体１１を設け、図中右側に現像器１３を、
左側にクリーニング器１５を、上側には、帯電器１２を
それぞれ配置する。By the way, the photoconductor 11, the charger 12, and
As shown in FIG. 7, the developing unit 13 and the cleaning unit 15 house them in one case 21 to form a process unit 20. A drum-shaped photosensitive member 11 is provided in the substantially center of the case 21, and a developing device 13 is provided on the right side in the drawing.
The cleaning device 15 is arranged on the left side and the charging device 12 is arranged on the upper side.
【００１２】前記現像器１３は、その内部右側をトナ−
が収納されるホッパ部１３ａとし、ホッパ部１３ａ内に
は、アジテ−タ２２を設ける。また、感光体１１側に
は、例えば感光体１１上にトナ−を付着して現像する現
像ロ−ラ２３とこの現像ロ−ラ２３にトナ−を補給する
補給ロ−ラ２４とを配置するとともに、その先端を現像
ロ−ラ２３の回転方向に向けて現像ロ−ラ２３の表面に
押し当てた薄層化ブレ−ド２５をケ−ス２１で支持す
る。また、クリーニング器１５内には、例えばその先端
を感光体１１の回転方向と逆方向に向けて感光体１１の
表面に押し当てて画像転写後の感光体１１上の残留トナ
−をクリーニングするクリーニングブレ−ド２６と、そ
のトナ−を廃トナ−タンク１５ａ内に回収する回収ロ−
ラ２７とを設ける。The developing device 13 has a toner on the right side inside.
Is stored in the hopper portion 13a, and an agitator 22 is provided in the hopper portion 13a. Further, on the side of the photoconductor 11, for example, a developing roller 23 for adhering a toner on the photoconductor 11 for development and a replenishing roller 24 for replenishing the developing roller 23 with the toner are arranged. At the same time, the case 21 supports the thinning blade 25 whose tip is pressed against the surface of the developing roller 23 in the direction of rotation of the developing roller 23. Further, in the cleaning device 15, for example, the cleaning is performed to press the tip of the cleaning device 15 against the surface of the photoconductor 11 in the direction opposite to the rotation direction of the photoconductor 11 to clean the residual toner on the photoconductor 11 after image transfer. A blade 26 and a recovery roller for recovering the toner in the waste toner tank 15a.
La 27 and are provided.
【００１３】このように構成したプロセスユニット２０
の正面（図中前側）には、図１に示すように、ケ−ス２
１のホッパ部１３ａの位置にホッパ部１３ａへトナ−補
給を行うためのトナ−補給口２８を設け、クリーニング
器１５の廃トナ−タンク１５ａ位置にも廃トナ−を取り
出すトナ−取出口２９を設ける。また、このトナ−補給
口２８とトナ−取出口２９を設けた面の一方の側に一端
をヒンジなどで取り付けた開閉自在の蓋３０を設け、そ
の他端にこの蓋３０を開くことを阻止する鍵３１を取り
付ける。その蓋３０の内側の面には、前記トナ−補給口
２８とトナ−取出口２９とにそれぞれ嵌合してトナ−漏
れを防ぐ凸部３２・３３を設ける。そして、図２に示す
ように蓋３０を閉めて鍵３１を掛ける。The process unit 20 configured as above
As shown in FIG. 1, a case 2 is provided on the front side (front side in the figure) of the case 2.
A toner replenishing port 28 for replenishing toner to the hopper 13a is provided at the position of the first hopper 13a, and a toner outlet 29 for taking out the waste toner is also provided at the position of the waste toner tank 15a of the cleaning device 15. Set up. Further, an openable / closable lid 30 having one end attached by a hinge or the like is provided on one side of the surface on which the toner supply port 28 and the toner outlet 29 are provided, and the opening of the lid 30 is prevented at the other end. Attach the key 31. The inner surface of the lid 30 is provided with convex portions 32 and 33 which are fitted into the toner replenishing port 28 and the toner outlet 29, respectively, to prevent toner leakage. Then, as shown in FIG. 2, the lid 30 is closed and the key 31 is locked.
【００１４】そして、トナ−補給のときには、鍵３１を
開けてトナ−補給口２８からホッパ部１３ａに新しいト
ナ−を補給し、必要に応じて廃トナ−をトナ−取出口２
９から取り出して廃棄する。その後蓋３０を閉めると凸
部３２・３３がトナ−補給口２８とトナ−取出口２９と
にそれぞれ嵌合してトナ−漏れを防ぐ。そして、鍵３１
を掛けて所定の者以外がその蓋３０を開いてトナ−補給
を行うことを阻止する。When replenishing the toner, the key 31 is opened to replenish the hopper portion 13a with a new toner from the toner replenishing port 28, and the waste toner is replenished with the toner unloading port 2 as required.
Remove from 9 and discard. Then, when the lid 30 is closed, the convex portions 32 and 33 are fitted into the toner replenishing port 28 and the toner outlet 29, respectively, to prevent toner leakage. And the key 31
To prevent the person other than a predetermined person from opening the lid 30 to replenish the toner.
【００１５】前記実施例は、１枚の蓋３０でトナ−補給
口２８とトナ−取出口２９とを被う構成としたが、図３
及び４に示すように、トナ−補給口２８を被う蓋３０と
トナ−取出口２９を被う蓋３０との２枚の蓋３０を設け
て、それぞれに鍵３１を取り付け、必要な方の蓋３０の
鍵３１を開けるようにしてもよい。In the above-described embodiment, the toner replenishing port 28 and the toner ejecting port 29 are covered with one lid 30.
As shown in FIGS. 4 and 4, two lids 30 are provided, a lid 30 covering the toner replenishing port 28 and a lid 30 covering the toner outlet 29, and a key 31 is attached to each of the lids 30, and one of the necessary ones is attached. The key 31 of the lid 30 may be opened.
【００１６】また、図１に示す前記実施例は、ケ−ス２
１にトナ−補給口２８とトナ−取出口２９とを設けた
が、図５及び図６に示すように、ケ−ス２１に取り出し
口３４・３５を設けるとともに、蓋３０を開いたとき、
現像器１３の一部であるホッパ部１３ａと、クリーニン
グ器１５とを、それぞれ取り出し口３４・３５から図６
に示すように取り出し可能としてもよい。そして、トナ
−を補給し、廃トナ−を廃棄する。尚、上記のように現
像器の一部だけを取り出すのではなく、その全部を取り
出すようにしてもよい。In the embodiment shown in FIG. 1, the case 2 is used.
Although the toner replenishing port 28 and the toner take-out port 29 are provided in FIG. 1, as shown in FIGS. 5 and 6, when the case 21 is provided with the taking-out ports 34 and 35 and the lid 30 is opened,
The hopper portion 13a, which is a part of the developing device 13, and the cleaning device 15 are taken out from the outlets 34 and 35, respectively.
It may be removable as shown in FIG. Then, the toner is replenished and the waste toner is discarded. Incidentally, instead of taking out only a part of the developing device as described above, it is possible to take out the entire developing device.
【００１７】[0017]
【発明の効果】従って、この発明によれば、トナ−補給
時に鍵を開けて現像器内に新しいトナ−を補給し、必要
に応じて廃トナ−を廃棄した後蓋を閉めて鍵を掛け、そ
の蓋を開くことを阻止して所定の者以外がトナ−補給を
行うことを阻止するので、好ましくないトナ−が現像器
に補給されて異常画像が発生したり、故障したりするこ
とを防止することができる。Therefore, according to the present invention, when the toner is replenished, the key is opened to replenish the developing device with a new toner, and the waste toner is discarded as necessary, and then the lid is closed and the key is locked. , The opening of the lid is blocked to prevent the toner supply by a person other than a predetermined person, so that an undesired toner may be supplied to the developing device to cause an abnormal image or a malfunction. Can be prevented.
【図１】この発明の一実施例であるレ−ザプリンタのプ
ロセスユニットを、蓋を開けて示す正面図である。FIG. 1 is a front view showing a process unit of a laser printer according to an embodiment of the present invention with a lid open.
【図２】その蓋を閉めて示す正面図である。FIG. 2 is a front view showing the cover closed.
【図３】そのプロセスユニットの他例を、蓋を閉めて示
す正面図である。FIG. 3 is a front view showing another example of the process unit with the lid closed.
【図４】その蓋を開けて示す正面図である。FIG. 4 is a front view showing the lid opened.
【図５】そのプロセスユニットの更に他例を、蓋を閉め
て示す正面図である。FIG. 5 is a front view showing still another example of the process unit with a lid closed.
【図６】その蓋を開けて示す正面図である。FIG. 6 is a front view showing the lid opened.
【図７】そのようなプロセスユニットの内部機構を示す
断面図である。FIG. 7 is a cross-sectional view showing the internal mechanism of such a process unit.
【図８】そのようなプロセスユニットを備えるレ−ザプ
リンタの全体概略構成図である。FIG. 8 is an overall schematic configuration diagram of a laser printer including such a process unit.
１１ 感光体 １３ 現像器 １５ クリーニング器 １５ａ 廃トナ−タンク ２８ トナ−補給口 ３０ 蓋 ３１ 鍵 ３４ 取り出し口 11 Photoreceptor 13 Developing Device 15 Cleaning Device 15a Waste Toner Tank 28 Toner Replenishing Port 30 Lid 31 Key 34 Removal Port
Claims (3)
像を可視像化するとともに、その可視像化した画像をシ
−トに転写後前記感光体上の残留トナ−をクリーニング
器で清掃して廃トナ−タンク内に貯蔵する電子写真装置
において、前記現像器内に新しいトナ−を補給可能とす
るとともに、所定の者以外がそのトナ−補給を行うこと
を阻止する鍵を備えてなる、電子写真装置。1. A toner is attached by a developing device to make a latent image on a photoconductor visible, and after the visualized image is transferred to a sheet, the residual toner on the photoconductor is transferred. In an electrophotographic apparatus in which the toner is cleaned by a cleaning device and stored in the waste toner tank, a new toner can be replenished in the developing device and the replenishment of the toner is prevented by a person other than a predetermined person. An electrophotographic device equipped with a key.
し、そのトナ−補給口を塞ぐ蓋を設けるとともに、その
蓋にそれを開くことを阻止して所定の者以外が前記トナ
−補給を行うことを阻止する前記鍵を備えてなる、請求
項１に記載の電子写真装置。2. A toner replenishing port for replenishing the toner is provided, and a lid for closing the toner replenishing port is provided, and the lid is prevented from being opened to prevent the toner from being supplied by a person other than a predetermined person. The electrophotographic apparatus according to claim 1, comprising the key for preventing replenishment.
可能とするとともに、その取り出し口を塞ぐ蓋を設け、
その蓋にそれを開くことを阻止して所定の者以外が前記
トナ−補給を行うことを阻止する前記鍵を備えてなる、
請求項１に記載の電子写真装置。3. A developing device is provided with a lid that allows all or a part of the developing device to be taken out and closes the taking-out port.
The lid is provided with the key to prevent it from being opened to prevent the replenishment of the toner by anyone other than a predetermined person,
The electrophotographic apparatus according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04070412A JP3113050B2 (en) | 1992-02-20 | 1992-02-20 | Electrophotographic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04070412A JP3113050B2 (en) | 1992-02-20 | 1992-02-20 | Electrophotographic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05232811A true JPH05232811A (en) | 1993-09-10 |
| JP3113050B2 JP3113050B2 (en) | 2000-11-27 |
Family
ID=13430735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04070412A Expired - Fee Related JP3113050B2 (en) | 1992-02-20 | 1992-02-20 | Electrophotographic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3113050B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7215906B2 (en) | 2004-01-19 | 2007-05-08 | Murata Kikai Kabushiki Kaisha | Developing unit with gripper that covers developer filling opening |
| JP2007241058A (en) * | 2006-03-10 | 2007-09-20 | Ricoh Co Ltd | Powder storage unit, storage unit, powder supply device, and image forming apparatus |
-
1992
- 1992-02-20 JP JP04070412A patent/JP3113050B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7215906B2 (en) | 2004-01-19 | 2007-05-08 | Murata Kikai Kabushiki Kaisha | Developing unit with gripper that covers developer filling opening |
| JP2007241058A (en) * | 2006-03-10 | 2007-09-20 | Ricoh Co Ltd | Powder storage unit, storage unit, powder supply device, and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3113050B2 (en) | 2000-11-27 |
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