JPS5912464A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPS5912464A JPS5912464A JP57120509A JP12050982A JPS5912464A JP S5912464 A JPS5912464 A JP S5912464A JP 57120509 A JP57120509 A JP 57120509A JP 12050982 A JP12050982 A JP 12050982A JP S5912464 A JPS5912464 A JP S5912464A
- Authority
- JP
- Japan
- Prior art keywords
- cartridge
- developing device
- toner
- developer
- gap
- 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
- 238000003780 insertion Methods 0.000 abstract description 8
- 230000037431 insertion Effects 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 3
- 230000008023 solidification Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
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
- G03G15/0865—Arrangements for supplying new developer
- G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
- G03G15/087—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
- G03G15/0872—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge the developer cartridges being generally horizontally mounted parallel to its longitudinal rotational axis
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/06—Developing structures, details
- G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
- G03G2215/0663—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
- G03G2215/0665—Generally horizontally mounting of said toner cartridge parallel to its longitudinal rotational axis
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/06—Developing structures, details
- G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
- G03G2215/0663—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
- G03G2215/0675—Generally cylindrical container shape having two ends
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
(イ)発明の目的
この発明は、複写機、静電プリンタなどの画像形成装置
における現像装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (A) Object of the Invention The present invention relates to a developing device in an image forming apparatus such as a copying machine or an electrostatic printer.
上記のような画像形成装置において、その現像装置に現
像剤を供給する手段としては従来から種々の仕方がおこ
なわれているが、第1図に例示するように、通常円筒状
のカートリッジ2内に現像剤を収納し、これに形成した
開口2aを上方に維持したi!ま現像装置にもうけた中
空筒部に嵌挿し、所定位置に至るまでは前記カー) I
Jッジ2にもうけた突部4を、現像装置側の前記中空筒
部に形成した案内凹溝5に係合させてカートリッジの開
口2aを上方に保持し、所定位置において突部4と凹溝
5との係合をはずすとともにカートリッジをほぼ180
°回動してカートリッジ2の開口2aを、筒部6の下側
に形成した開口3aに合致させてカートリッジ内の現像
剤を現像装置1内に落下供給させるように構成したもの
が従来から知られている。In the above-mentioned image forming apparatus, various methods have been conventionally used to supply developer to the developing device.As illustrated in FIG. The i! which houses the developer and maintains the opening 2a formed therein upwards! It is inserted into the hollow cylinder part provided in the developing device, and the above-mentioned car is inserted until it reaches the specified position.
The protrusion 4 provided on the J edge 2 is engaged with the guide groove 5 formed in the hollow cylinder on the developing device side to hold the opening 2a of the cartridge upward, and the protrusion 4 and the recess are held at a predetermined position. Disengage the groove 5 and move the cartridge approximately 180 degrees.
Conventionally, there has been known a structure in which the developer in the cartridge is caused to fall and be supplied into the developing device 1 by rotating the opening 2a of the cartridge 2 to match the opening 3a formed on the lower side of the cylindrical portion 6. It is being
このようなものは、操作者が直接粉状の現像剤に触れた
り、機器周辺に飛散するおそれが少ないとして、と<K
1成分系現像剤の普及にともなって近来次第に汎用され
るようになってきている。Such materials are considered less likely to cause the operator to come into direct contact with the powdered developer or to be scattered around the equipment.
With the spread of one-component developers, they have become increasingly popular in recent years.
しかしながら、実際問題としては、上記のような現像剤
供給機構においても、現像剤のこのましからざる逸出を
充分に阻止することは不可能であったのである。このこ
とを第2図A、Bによって略述すると、第2図Aは現像
剤を収納したカートリッジ2を、その開口2aを上方に
維持したまま現像装置1の中空筒部乙に嵌挿しだところ
を示す断面図であって、このように中空筒部6内にカー
トリッジ2を押挿するさいには操作が円滑におこなわれ
るように、中空筒部6の内径はカートリッジ2の外径よ
りも比較的大きく構成されており、このために、筒部ろ
内の定位置においてカートリッジ2を停止すれば両者間
には第2図Aに符号Gで示すような間隙が生じ、この間
隙は粉状の現像剤の粉径に比すればきわめて大きいもの
と彦ることは当然である。However, as a practical matter, even with the developer supply mechanism as described above, it has not been possible to sufficiently prevent this unwanted escape of the developer. To briefly explain this with reference to FIGS. 2A and 2B, FIG. 2A shows the cartridge 2 containing the developer being inserted into the hollow cylinder part B of the developing device 1 while keeping its opening 2a upward. is a cross-sectional view showing the inner diameter of the hollow cylindrical part 6 compared to the outer diameter of the cartridge 2 so that the operation can be performed smoothly when inserting the cartridge 2 into the hollow cylindrical part 6. Therefore, when the cartridge 2 is stopped at a fixed position in the cylindrical filter, a gap as shown by the symbol G in FIG. Naturally, it is extremely large compared to the powder diameter of the developer.
このような状態で、カートリッジ2を矢印A方向に回動
してゆけば、カートリッジ2の開口2aは、筒部6の開
口3aに合致する前に、第2図Bに示すよう々位置をと
り、このとき内部の現像剤は間隙Gに逸出することにな
る。もちろんカートリッジ2がさらに[118動するに
つれて、間隙G内の現像剤の大部分は開口3aから現像
装置に落下するが、その一部は中空筒部内壁に付着して
のこり、他の一部は、カートリッジを現像装置からとり
出すさいにその外壁面に付着したまま外部にとり出され
る。In this state, if the cartridge 2 is rotated in the direction of the arrow A, the opening 2a of the cartridge 2 will assume the position shown in FIG. 2B before matching with the opening 3a of the cylinder 6. , at this time, the internal developer escapes into the gap G. Of course, as the cartridge 2 moves further, most of the developer in the gap G falls into the developing device from the opening 3a, but some of it remains attached to the inner wall of the hollow cylinder, and the other part remains. When the cartridge is taken out from the developing device, it is taken out to the outside while remaining attached to the outer wall surface of the cartridge.
カートリッジ外壁面に付着したものは操作者の身体、衣
服等を汚損したり、機器内にこほねてこれを汚すことも
あるから、その取扱いが厄介になる。またカートリッジ
をとり出すさいに、とくりこその奥側のフランジ部分か
現像装置の中空筒部6内壁面にのこる現像剤をかき出す
傾向となり、このことも環境を汚染する原因となるもの
である。Materials adhering to the outer wall of the cartridge may stain the operator's body, clothing, etc., or may spread inside the device and stain it, making it difficult to handle. Further, when taking out the cartridge, there is a tendency to scrape out the developer remaining on the inner wall surface of the hollow cylindrical portion 6 of the developing device, either on the flange portion on the back side of the scoop, and this also causes environmental pollution.
このようガ欠点を解消するために、たとえばカートリッ
ジを挿入する現像装置側の中空筒部6の挿入口縁にフェ
ルト、モルトブレンなどの柔軟な材料を取着して、カー
トリッジを引き出すさいにクリーニング作用をなさしめ
るようなことも提案されているけれども、カートリッジ
の挿脱をくり返すうちに急速にフェルト等自体が汚染さ
れてクリーニング作用が劣化するばかりでなく、むしろ
逆効果となるおそれがあったのである。In order to solve this problem, for example, a flexible material such as felt or maltbrene is attached to the insertion opening edge of the hollow cylinder part 6 on the side of the developing device into which the cartridge is inserted, so that it has a cleaning effect when the cartridge is pulled out. Although some proposals have been made to reduce the number of cartridges, there was a risk that the repeated insertion and removal of cartridges would rapidly contaminate the felt itself, deteriorating the cleaning action, and even have the opposite effect. .
さらに1だカートリッジを現像装置側の前記筒部乙に挿
入をくりかえすにつれて、それ以前に筒部内壁面に残留
する現像剤が、カー) IJツジ先端の角部によってし
ごきおとされて、カートリッジの押挿にともなって筒部
の災の方向に搬送され押し固められ、これが次第に蓄積
されるとカートリッジの円滑な作動に支障をきたすおそ
れもあったのである。この欠点を防ぐために、現像装置
側の最奥部を開口してカー) IJツジ先端を外部へ突
出させるような手段も提案されているけれども、押し出
された現像剤の刻後の処理が厄介で、かえって機内を汚
染することをまぬかれ々かった。Furthermore, as the cartridge is repeatedly inserted into the cylindrical part B on the developing device side, the developer remaining on the inner wall surface of the cylindrical part is squeezed out by the corner of the tip of the IJ screw, and the cartridge is pushed. As the cartridge is inserted, it is conveyed and compacted in the direction of the cylindrical part, and if this gradually accumulates, there is a risk that it will interfere with the smooth operation of the cartridge. In order to prevent this drawback, a method has been proposed in which the innermost part of the developing device is opened and the tip of the IJ screw protrudes outside, but it is difficult to process the extruded developer after engraving. However, they were careful not to contaminate the inside of the plane.
本発明は以上のような現状にかんがみて外されたもので
あって、とくに、カートリッジを現像装置内に嵌挿して
、該カートリッジ前端の大径フランジ部を印、像装置側
部に当接停止させて内部のトナーを現像装置内に落下さ
せ得る定位置となった場合に、カートリッジの災側端部
と、現像装置側のこれに対向する面との間に間隙を形成
させるとともに、現像装置側の該対向面と該装置内のト
ナー貯溜部とを連通させるように構成することによって
、前述のようにカートリッジのくり返し装脱によって現
像装置のカートリッジ゛嵌挿孔の最奥部にトナーが蓄積
固化してカートリッジの操作および現像作用に支障を来
だしたり、カートリッジの装脱にあたってこのトナーが
カートリッジ英側端面に付着したままひきだされて機器
や操作者の衣服、身体等を汚損することのないような現
像装置を提供することを目的とするものである。The present invention has been developed in view of the above-mentioned current situation, and in particular, the cartridge is inserted into the developing device, and the large diameter flange portion of the front end of the cartridge is marked, and stops when it comes into contact with the side of the developing device. When the toner inside the cartridge is in a fixed position where it can fall into the developing device, a gap is formed between the end of the cartridge and the opposite surface of the developing device, and the developing device By configuring the opposing surface on the side to communicate with the toner storage section in the device, toner accumulates in the innermost part of the cartridge insertion hole of the developing device due to repeated loading and unloading of the cartridge as described above. The toner may solidify and interfere with cartridge operation and development, or when the cartridge is installed or removed, this toner may remain attached to the front end of the cartridge and be drawn out, staining the equipment, operator's clothes, body, etc. The purpose of this invention is to provide a developing device that does not exist in the prior art.
(ロ)発明の構成
第6図は本発明によるカートリッジ挿脱部をそ々えた現
像装置の一部を示す斜面図であって、カートリッジを挿
脱する中空円筒状の長孔部は、断面はぼ半円筒状の上半
部を除去した下半部のみが示しである。(B) Structure of the Invention FIG. 6 is a perspective view showing a part of a developing device equipped with a cartridge insertion/removal section according to the invention, and the hollow cylindrical elongated hole portion into which the cartridge is inserted/removed has a cross section. Only the lower half of the semi-cylindrical upper half is shown.
カートリッジとしては第1図に示すような全体として円
筒状に形成された公知のそれを用いるものとし、このカ
ートリッジは同図矢印B方向から現像装置に挿入するも
のとする。この場合カートリッジにもうけられた前記突
部4が係合する現像装置側の案内凹溝5に相当する四荷
は、第6図に図示してない上半部の半円形筒状部分にも
うけてあってこれによって開口2aを上方に維持して挿
入され、カートリッジ手前端のフランジが現像装置前端
面に当接して位置決めされ、さらに、この荀百において
は凹溝と突部との係合かはずれてカートリッジはこの位
置で回動自在となることなどklすへて公知の装置と変
りはない。As the cartridge, a known cartridge having a generally cylindrical shape as shown in FIG. 1 is used, and this cartridge is inserted into the developing device from the direction of arrow B in the figure. In this case, the four parts corresponding to the guide grooves 5 on the developing device side, which are engaged with the protrusions 4 provided on the cartridge, are provided in the semicircular cylindrical part of the upper half not shown in FIG. As a result, the cartridge is inserted with the opening 2a held upward, and the flange at the front end of the cartridge is positioned in contact with the front end surface of the developing device. The cartridge is rotatable in this position, which is no different from any known device.
現像装置乙のカートリッジ挿入部はカートリッジ挿入孔
の少なくとも下半部に、第6図々示のように多数の案内
片71.72.73−・7nおよび81.82.86・
・8nを、夫々適宜の間隔をもうけて形成して滑るもの
である。各案内片の上面は、カートリッジが自由に挿脱
できるような円筒面の一部をなすような円弧状に形成し
てあって、第6図矢印B方向に、その開口2aを上方に
維持したま1現像装置内定位置までカートリッジ2を嵌
挿したのち、その突部が現像装置側のストッパピン9に
当接するまで、はぼ180°回動じて開口2aを下方に
待ち来たしてカートリッジ内の現揮剤を現像装置に供給
するにあたり、回動中に、開口2aからこぼれおちる現
像剤はほとんど案内片71.72・・81.82・・の
間に形成された間隙からこぼれおちて、カートリッジ外
周面近傍に残留することがない。また若干量残留してい
る現像剤も、カートリッジを引き抜くさいに、カートリ
ッジ外周面を、各案内片71・・81・・の隅部がしご
くように接触しながら相対変位するために、すべて現像
装置内に落下するので、残留現像剤がカートリッジ表面
に付着した捷まとり出されたり、カートリッジの奥側端
縁によって残留現像剤が現像装置外部までかき出される
ようなことも確実に阻止することができるものである。The cartridge insertion portion of the developing device B has a large number of guide pieces 71.72.73-.7n and 81.82.86.in at least the lower half of the cartridge insertion hole as shown in FIG.
- 8n are formed with appropriate spacing between them for sliding. The upper surface of each guide piece is formed in an arc shape forming a part of a cylindrical surface through which a cartridge can be freely inserted and removed, and the opening 2a is maintained upward in the direction of arrow B in FIG. After inserting the cartridge 2 to the internal position of the developing device, the cartridge 2 is rotated approximately 180 degrees until the protrusion comes into contact with the stopper pin 9 on the developing device side, and the opening 2a is brought downward, and the developing device inside the cartridge is inserted. When supplying the volatile agent to the developing device, most of the developer that spills from the opening 2a during rotation falls through the gaps formed between the guide pieces 71, 72, 81, 82, etc., and spills onto the outer peripheral surface of the cartridge. It will not remain in the vicinity. In addition, when the cartridge is pulled out, the corners of the guide pieces 71, 81, and so on are displaced relative to each other while pulling out the cartridge. Since the developer falls into the cartridge, it is possible to reliably prevent residual developer from being scraped out from the cartridge surface, or from being scraped out by the rear edge of the cartridge to the outside of the developing device. It is possible.
なおり−トリッジ挿脱のさいの案内と々る谷案内片は連
続してい々いから、カートリッジの、とくに挿入動作が
不円滑に々らないように案内片間の距離はあまり大きく
ならないように選定することが望ましい。Guide when inserting and removing the cartridge Since the valley guide pieces move continuously, the distance between the guide pieces should not be too large so that the cartridge insertion operation does not move smoothly. It is desirable to select
そして本発明においては、第3図に示すように、カート
リッジが現像装置内定位置に停止した場合、同図に鎖線
で示しであるようにカートリッジ2のの最芙端面と、こ
れに対応する現像装置側の対向面6aとの間(は間隙T
が形成されるように、現像装置が構成されており、さら
に、前記対向面6aの下方には、現像装置下部のトナー
貯溜部にトナー落下を促進するだめの斜面6bか形成さ
れトナー貯溜部に連通されている。In the present invention, as shown in FIG. 3, when the cartridge stops at the internal position of the developing device, the outermost end surface of the cartridge 2 and the corresponding developing device Between the opposing surface 6a on the side (is the gap T
Further, a slope 6b is formed below the opposing surface 6a to promote the toner falling into the toner storage section at the bottom of the development device. It is communicated.
(ハ)発明の効果
本発明はおおむね以上のように構成されており、カー
トリッジを現像装置に対して挿脱をくりかえしても案内
片71・・、81・・間に形成されている間隙からトナ
ーはおおむね落下するから、前記対向面6aと、カート
リッジの奥側端面の間に蓄積される可能性は少なく、こ
の部分まで搬送されたものも前記間隙Tの存在、斜面6
bの形成によってすべて直ちにトナー貯溜部に落下する
ので蓄積することがない。この被搬送作用は、もちろん
第1図に示すような公知の現像装置の場合にも同様に奏
し得られるものでこの場合には、第6図々示のような多
数の独立した案内片を形成しである場合よりもその効果
ははるかに顕著なものかあることは容易に理解できると
ころであろう。なおこの斜面は前記対向面6aうほぼ同
一面で垂直状に形成することもできることはもちろんで
あろう。(c) Effects of the invention The present invention is generally configured as described above, and the card
Even if the cartridge is repeatedly inserted and removed from the developing device, the toner mostly falls through the gaps formed between the guide pieces 71, 81, and so on, so that the toner does not fall between the facing surface 6a and the rear end surface of the cartridge. There is little possibility of accumulation on the slope 6, and the presence of the gap T and the slope 6
As a result of the formation of b, all of the toner immediately falls into the toner reservoir, so there is no accumulation. Of course, this conveying action can be similarly achieved in the case of a known developing device as shown in FIG. 1. In this case, a large number of independent guide pieces as shown in FIG. It is easy to understand that the effect is much more pronounced than if it were the case. Of course, this slope can also be formed vertically on substantially the same plane as the opposing surface 6a.
第1図は公知の円筒状カートリッジと、これを用いる現
像装置の作動を示す概略斜面図、第2図AおよびBは同
上要部断面図、
第6図は本発明による現像装置の!部を示す一部切截斜
面図である。
1.6・・現像装置、2・・カートリッジ2a・・開口
、3・・中空筒部
4・拳突部、5・・案内凹溝
6a・・対向面、6b・・斜面
7 1 、 72 ・ 拳 70
81.82・・8n・・案内片
9拳・ストッパビン、T・・間隙
出願人 キャノン株式会社
1
第 1 図FIG. 1 is a schematic perspective view showing the operation of a known cylindrical cartridge and a developing device using the same, FIGS. 2 A and B are sectional views of essential parts of the same, and FIG. FIG. 1.6...Developing device, 2...Cartridge 2a...Opening, 3...Hollow cylinder portion 4/Kist protrusion, 5...Guiding groove 6a...Opposing surface, 6b...Slope 71, 72. Fist 70 81.82...8n...Guide piece 9 Fist/Stopper bottle, T...Gap Applicant Canon Co., Ltd. 1 Figure 1
Claims (1)
ジを定位置に位置させて現像剤°を補給するようにした
現像装置において、 現像装置内前記定位置にあるカートリッジの最奥端面と
これに対向する現像装置側の対向面との間に間隙を形成
させるとともに、前記対向面に続いて、現像剤の落下を
促進させる現像剤溜り部との連通部を形成してなる現像
装置。[Scope of Claims] In a developing device in which a cartridge containing a developer is inserted and the cartridge is positioned at a fixed position to replenish the developer, the innermost part of the cartridge at the fixed position in the developing device A developing device in which a gap is formed between an end face and a facing face on the side of a developing device facing thereto, and a communicating part with a developer reservoir is formed following the facing face to promote falling of the developer. Device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57120509A JPS5912464A (en) | 1982-07-13 | 1982-07-13 | Developing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57120509A JPS5912464A (en) | 1982-07-13 | 1982-07-13 | Developing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5912464A true JPS5912464A (en) | 1984-01-23 |
Family
ID=14787963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57120509A Pending JPS5912464A (en) | 1982-07-13 | 1982-07-13 | Developing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5912464A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5669044A (en) * | 1995-06-07 | 1997-09-16 | Nashua Corporation | Article and method for dispensing toner and the like |
-
1982
- 1982-07-13 JP JP57120509A patent/JPS5912464A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5669044A (en) * | 1995-06-07 | 1997-09-16 | Nashua Corporation | Article and method for dispensing toner and the like |
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