JPS60163066A - Stirring device of developer in copying machine - Google Patents

Stirring device of developer in copying machine

Info

Publication number
JPS60163066A
JPS60163066A JP59018401A JP1840184A JPS60163066A JP S60163066 A JPS60163066 A JP S60163066A JP 59018401 A JP59018401 A JP 59018401A JP 1840184 A JP1840184 A JP 1840184A JP S60163066 A JPS60163066 A JP S60163066A
Authority
JP
Japan
Prior art keywords
developer
agitator
stirring
copying machine
revolving shaft
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
Application number
JP59018401A
Other languages
Japanese (ja)
Inventor
Yoshinori Otsuka
大塚　由則
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP59018401A priority Critical patent/JPS60163066A/en
Publication of JPS60163066A publication Critical patent/JPS60163066A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To always supply a sufficient developer by constituting an agitator of a revolving shaft and N pieces of stirring members provided projectingly in the radial direction from this revolving shaft, and also rotating said agitator at a speed of >=100/Nrpm. CONSTITUTION:An agitator 7 is provided on the diagonal upper part of a scraper 6, and this agitator 7 consists of a revolving shaft 7a and N pieces of stirring members 7b provided projectingly in the radial direction from this revolving shaft 7a. Also, this agitator 7 is rotated in the direction as indicated with an arrow at a speed of >=100/Nrpm. According to such a constitution, a developer can be stirred without obstructing a flow of the developer in a housing 2, by which a new developer and a developer scraped down by the scraper can be mixed quickly, and also a sufficient developer can always be supplied to a developing roll 4.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は現像器内に収容された現像剤を攪拌する複写
機の現像剤攪拌装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a developer stirring device for a copying machine that stirs developer contained in a developing device.

従来技術 従来電子複写機の現像器内には新たに補給されたトナー
を現像剤と均一に攪拌する現像剤攪拌装置が設けられて
いる。上記攪拌装置としては、羽根を放射状に突設した
アジテータが用いられている。しかしこのアジテータを
低速または間欠回転させて現像剤を攪拌するため、現像
器内における現像剤の流れがこのアジテータの羽根に妨
げられて、現像ロール側で現像剤が不足するなどの不具
合があった。BACKGROUND OF THE INVENTION A developer stirring device is provided in a developing device of a conventional electronic copying machine to uniformly stir newly replenished toner and developer. As the stirring device, an agitator having blades protruding radially is used. However, since this agitator is rotated at low speed or intermittently to agitate the developer, the flow of developer in the developing device is obstructed by the blades of this agitator, resulting in problems such as a shortage of developer on the developing roll side. .

発明の目的 この発明はかかる不具合を改善する目的でなされたもの
で、現像器内の現像剤の流れを乱すことなく現像剤が攪
拌できるようにした複写機の現像剤攪拌装置を提供しよ
うとするものである。Purpose of the Invention The present invention has been made for the purpose of improving the above-mentioned problems, and it is an object of the present invention to provide a developer stirring device for a copying machine that can stir the developer without disturbing the flow of the developer in the developing device. It is something.

発明の構成 現像器のハウジング内に収容された現像剤を攪拌するア
ジテータを、回転軸と、この回転軸より放射方向に突設
されたＮ個の攪拌部材とよ多構成して、このアジテータ
を１００／ＮｒＰＬ　以上の速度で回転させることによ
り、現像剤の流れを妨げることなくハウジング内の現像
剤を攪拌できるようにした複写機の現像剤攪拌装置。Structure of the Invention The agitator for stirring the developer housed in the housing of the developing device is composed of a rotating shaft and N stirring members protruding from the rotating shaft in the radial direction. A developer stirring device for a copying machine that can stir developer in a housing without interfering with the flow of the developer by rotating at a speed of 100/NrPL or higher.

実　施　例 以下この発明の一実施例を図面を参照して詳述すると１
図において１は図示しない電子複写機に設けられた現像
器で、ハウジング２の下部に感光体３の表面に形成され
た静電潜像を現像する現像ロール４が収容されている。Embodiment One embodiment of the present invention will be described in detail below with reference to the drawings.
In the figure, reference numeral 1 denotes a developing device provided in an electronic copying machine (not shown), and a developing roll 4 for developing an electrostatic latent image formed on the surface of a photoreceptor 3 is accommodated in the lower part of a housing 2.

上記現像ロール４の上方には現像ロール４の表面に吸着
された現像剤の穂立ちを一定にするトリマ５と、現像ロ
ール４の表面に付着した現像剤を掻き落すスクレーパ６
が設けられていると共に、スクレーパ６の斜め上方には
アジテータ７が設けられている。上記アジテータ７は回
転軸７ａと。Above the developing roll 4, there is a trimmer 5 that keeps the developer adsorbed on the surface of the developing roll 4 uniform, and a scraper 6 that scrapes off the developer that has adhered to the surface of the developing roll 4.
An agitator 7 is also provided diagonally above the scraper 6. The agitator 7 has a rotating shaft 7a.

この回転軸７αに取付けられた例えば２個の攪拌部材７
ｂとよりなる。上記攪拌部材７ｂは例えばワイヤをほぼ
コ字形に折曲したもので、各攪拌部材７ｂの水平部が回
転軸７αの軸線と平行し、かつ回転軸７αの中心を挾ん
で互に反対方向へ突出するよう開放端部がビスなどの固
着具８で回転軸７αに固着されている。そして上記アジ
テータ７は攪拌部材７ｂの数をＮ個とした場合＋　００
／Ｎ　ｔ７）ｍ以上の速度で矢印方向へ回転されるよう
になっている。For example, two stirring members 7 are attached to this rotating shaft 7α.
It consists of b. The stirring members 7b are, for example, wires bent into a substantially U-shape, and the horizontal portions of each stirring member 7b are parallel to the axis of the rotating shaft 7α, and protrude in opposite directions from each other across the center of the rotating shaft 7α. The open end portion is fixed to the rotating shaft 7α with a fixing member 8 such as a screw. The agitator 7 is +00 when the number of stirring members 7b is N.
/N t7) It is designed to be rotated in the direction of the arrow at a speed of more than m.

なお攪拌部材７ｂの数は１個ないし複数個設けるものと
する。Note that the number of stirring members 7b is one or more.

発明の効果 この発明は以上詳述したように、ハウジング２内に収容
された現像剤を攪拌するアジテータ７を回転軸７ａと、
ワイヤなどよりなるＮ個の攪拌部材７ｂとよシ構成し、
このアジテータ７を１００ハｒｐｍ以上の速度で回転さ
せるようにしたことから、ハウジング２内の現像剤の流
れを妨げることなく現像剤を攪拌することができる。Effects of the Invention As described in detail above, in the present invention, the agitator 7 for stirring the developer housed in the housing 2 has a rotating shaft 7a;
It is composed of N stirring members 7b made of wire or the like,
Since the agitator 7 is rotated at a speed of 100 rpm or more, the developer can be agitated without interfering with the flow of the developer within the housing 2.

これ虻よって新しい現像剤とスクレーパで掻き落された
現像剤とが速やかに混合できると共に。This allows the new developer and the developer scraped off by the scraper to be quickly mixed together.

常に十分な現像剤が現像ロニル４へ供給できることから
、現像剤の不足によって現像濃度が低下したり、現像不
良を起す虞れを未然に防止することができる。Since a sufficient amount of developer can always be supplied to the developer 4, it is possible to prevent the possibility that the development density will decrease or development defects will occur due to a shortage of developer.

なおアジチータフの回転数を１００／Ｎｒｐｍ以上とし
たのは、これ以下では攪拌部材７ｂが現像剤の流れを妨
げるためである。The reason why the rotational speed of the agitator is set to 100/Nrpm or more is because if the rotational speed is lower than this, the stirring member 7b will obstruct the flow of the developer.

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの発明の一実施例を示し、第１図は断面図、第
２図はアジテータの正面図である。 １は現像器、２はハウジング、７はアジテータ、７αは
回転軸、７ｂは攪拌部材。 出願人　富士ゼロックス株式会社 代理人　弁理士　米　原　正　章 弁理士　浜　本　忠The drawings show one embodiment of the invention, with FIG. 1 being a sectional view and FIG. 2 being a front view of the agitator. 1 is a developing device, 2 is a housing, 7 is an agitator, 7α is a rotating shaft, and 7b is a stirring member. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto

Claims (1)

【特許請求の範囲】[Claims] 現像器１のハウジング２内に、該ハウジング２内に収容
された現像剤を攪拌するアジテータ７を設けたものにお
いて、上記アジテータ７を回転軸７αと、この回転軸７
αより放射方向に突設されたＮ個の攪拌部材７ｂとより
構成すると共に、上記アジテータ７を１００／Ｎ　ｒ−
以上の速度で回転してなる複写機の現像剤攪拌装置。In the case where an agitator 7 for stirring the developer contained in the housing 2 is provided in the housing 2 of the developing device 1, the agitator 7 is connected to a rotating shaft 7α and the rotating shaft 7.
N stirring members 7b protrude in the radial direction from α, and the agitator 7 has a diameter of 100/N r-
A developer stirring device for a copying machine that rotates at a speed above.
JP59018401A 1984-02-06 1984-02-06 Stirring device of developer in copying machine Pending JPS60163066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59018401A JPS60163066A (en) 1984-02-06 1984-02-06 Stirring device of developer in copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59018401A JPS60163066A (en) 1984-02-06 1984-02-06 Stirring device of developer in copying machine

Publications (1)

Publication Number Publication Date
JPS60163066A true JPS60163066A (en) 1985-08-24

Family

ID=11970657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59018401A Pending JPS60163066A (en) 1984-02-06 1984-02-06 Stirring device of developer in copying machine

Country Status (1)

Country Link
JP (1) JPS60163066A (en)

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