JPH0247678A - Toner replenishing device for copying machine - Google Patents
Toner replenishing device for copying machineInfo
- Publication number
- JPH0247678A JPH0247678A JP19813888A JP19813888A JPH0247678A JP H0247678 A JPH0247678 A JP H0247678A JP 19813888 A JP19813888 A JP 19813888A JP 19813888 A JP19813888 A JP 19813888A JP H0247678 A JPH0247678 A JP H0247678A
- Authority
- JP
- Japan
- Prior art keywords
- cartridge
- toner
- nozzle
- valve
- toner replenishment
- 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
- 238000007789 sealing Methods 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 206010008531 Chills Diseases 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid 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
- G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
- G03G15/0881—Sealing of developer cartridges
- G03G15/0886—Sealing of developer cartridges by mechanical means, e.g. shutter, plug
-
- 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
-
- 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
- G03G2215/0678—Bottle shaped container having a bottle neck for toner discharge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Wet Developing In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は複写機、特に湿式電子写真方式の複写機のト
ナーを自動的に補給する装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for automatically replenishing toner in a copying machine, particularly a liquid electrophotographic copying machine.
従来の技術
従来は前記のようなトナー補給装置にあっては、トナー
ボトルにトナーを充填し、チキンフィード方式のキャッ
プが装着されて、ソレノイド等によりキャップを開閉し
てトナーを補給することが行われていた。Conventional technology Conventionally, in the toner replenishment device as described above, a toner bottle is filled with toner, a chicken feed type cap is attached, and the toner is replenished by opening and closing the cap using a solenoid or the like. I was worried.
ところがこの種のトナー補給装置にあっては。However, with this type of toner supply device.
トナーの流動性が良好でないと円滑に補給することがで
きず、また固着しやすいことからトナーの濃縮率すなわ
ち固形分の比率を高めることができないので、大きな容
積にしなければならず、そのようにしないと、従来のト
ナーボトルの場合よりもコピー枚数が少なくなってしま
うという欠点があった。またこの外にトナーボトルの交
換時にキャップが露出し、これはトナーによって汚損さ
れているので２複写機内やその周辺の床などにトナーが
たれて汚染するというような欠点もあった。If the fluidity of the toner is not good, it will not be possible to replenish the toner smoothly, and since the toner will tend to stick, it will not be possible to increase the concentration ratio of the toner, that is, the solid content ratio, so the volume must be large. Otherwise, there was a drawback that the number of copies would be smaller than in the case of a conventional toner bottle. In addition, when the toner bottle is replaced, the cap is exposed and is stained with toner, causing toner to drip and contaminate the interior of the copying machine and the floor around it.
そこでこれらの欠点を排除するものとして。So as a way to eliminate these drawbacks.
近時フロンガス、ＬＰＧまたは二酸化炭素ガス等をトナ
ーボトル内に注入しておき、そのガスの圧力によりボト
ル内のトナーを噴出させる。Recently, fluorocarbon gas, LPG, carbon dioxide gas, or the like is injected into a toner bottle, and the pressure of the gas causes the toner in the bottle to be ejected.
いわゆるスプレー缶式のトナー補給カートリッジを使用
する補給装置が提案されている。A replenishment device using a so-called spray can type toner replenishment cartridge has been proposed.
第６，７図にこの種の補給装置の１例の要部が示されて
おり、第６図は機体２にカー１〜リツジ１が装着された
状態を、また、第７図はカートリッジ１を機体２から離
脱した状態をそれぞれ示している。Figures 6 and 7 show the main parts of an example of this type of replenishment device. The state in which the two have been separated from the aircraft 2 is shown.
３はカートリッジ１の口部に装着されているノズルを示
し、このノズル３はカートリッジ１の装着時に機体２の
開口部に設けたゴムシールホルダ４１に保持されたゴム
シール４２の開口部４３内に挿入されたうえ押圧されて
上動し、図示しない開閉機構によって開口し、この開口
によりカートリッジ１の内部をゴムシールホルダ４１に
連結されたホース４と連通ずるようになっている。そし
てこのホース４は図示しない現像装置に連結され、この
状態でカートリッジ１内のトナーは内部のガス圧力に押
されて、ノズル３及びホース４を介して現像装置に補給
される。3 indicates a nozzle attached to the mouth of the cartridge 1, and this nozzle 3 is inserted into the opening 43 of a rubber seal 42 held in a rubber seal holder 41 provided at the opening of the body 2 when the cartridge 1 is attached. It is then pressed and moved upward, and is opened by an opening/closing mechanism (not shown), through which the inside of the cartridge 1 is communicated with the hose 4 connected to the rubber seal holder 41. The hose 4 is connected to a developing device (not shown), and in this state, the toner in the cartridge 1 is pushed by the internal gas pressure and supplied to the developing device via the nozzle 3 and the hose 4.
この種の補給装置はガスの圧力を利用するものであるた
めトナーの流動性が高められ、また固着に対しても余裕
度があるので、トナーの濃縮率が高められてカートリッ
ジの容積を比較的小さなものとすることができるのに加
えて、トナーの噴出による分散性の向上が図られるとい
う利点がある。This type of replenishment device uses gas pressure, so the fluidity of the toner is increased, and there is also a margin against sticking, so the toner concentration rate is increased and the volume of the cartridge is relatively reduced. In addition to being able to be made small, there is an advantage that the dispersibility of the toner can be improved by ejecting the toner.
発明が解決しようとする課題
しかしながら前記のような補給装置にあっては、トナー
カートリッジ１を第７図に示すように機体２から離脱さ
せると、ノズル３は自動的に閉鎖するが、ゴムシール４
２の開口部４３は開口することとなるため、ホース４内
に滞留しているトナーがホース４内の内圧によって逆流
し。Problem to be Solved by the Invention However, in the replenishing device as described above, when the toner cartridge 1 is removed from the body 2 as shown in FIG. 7, the nozzle 3 automatically closes, but the rubber seal 4
Since the opening 43 of No. 2 is opened, the toner staying inside the hose 4 flows backward due to the internal pressure inside the hose 4.
ゴムシール４２の開口部４３から外部に溢流してゴムシ
ール４２の表面及びノズル３の外周に４５．４６として
示すように付着し、その分だけトナーを損失することと
なるとともに、シール４２及びノズル３を汚損するとい
う問題を有している。The toner overflows to the outside from the opening 43 of the rubber seal 42 and adheres to the surface of the rubber seal 42 and the outer periphery of the nozzle 3 as shown at 45 and 46, resulting in a corresponding loss of toner and damage to the seal 42 and the nozzle 3. It has the problem of staining.
そこでこの発明の目的は、前記のような従来のトナー補
給装置のもつ問題を解消し、トナーカートリッジの機体
からの離脱時に、現像装置へのトナー給送ホース内のト
ナーが逆流して外部に溢流することがなく、それによっ
てトナーを損失することなく、また補給部外部を汚損す
ることのないトナー補給装置を提供するにある６課題を
解決するための手段
この発明は前記の目的を達成するために、トナー補給カ
ートリッジを装着する機体の部分に、トナー補給カート
リッジの装着、離脱に対応して開閉する弁機構または、
縮小、拡大するじやばら部材を設けたものである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problem of the conventional toner replenishing device, in which the toner in the toner supply hose to the developing device flows back and overflows to the outside when the toner cartridge is removed from the machine. To provide a toner replenishing device which does not flow, thereby causing no loss of toner, and which does not stain the outside of the replenishing section.Means for Solving the Problems This invention achieves the above objects. Therefore, a valve mechanism that opens and closes in response to the installation and removal of the toner replenishment cartridge, or
It is equipped with strips and separate members that can be contracted and expanded.
さらに前記のものにおいて、弁機構は機体に取付けられ
た筒状弁座と、この弁座内に移動可能に設けられて弁座
の弁口を開閉する筒状弁体と、この弁体の端部に取付け
られて、トナー補給カートリッジのノズルが着脱可能と
なっているシール部材とを有し、該カートリッジの装着
時には該カートリッジの押圧力によってシール部材及び
筒状弁体が一方向に移動して弁口を開口し、該カートリ
ッジの離脱時にはシール部材及び筒状弁体の他方向への
移動によって弁口が閉鎖されるようになっている。Further, in the above-described valve mechanism, the valve mechanism includes a cylindrical valve seat attached to the fuselage, a cylindrical valve body that is movably provided within the valve seat and opens and closes the valve port of the valve seat, and an end of the valve body. The nozzle of the toner replenishment cartridge is attached to the toner replenishment cartridge, and the nozzle of the toner replenishment cartridge is removably attached to the sealing member. The valve port is opened, and when the cartridge is removed, the valve port is closed by moving the sealing member and the cylindrical valve body in the other direction.
作 用
前記のものにおいて弁機構を設けたものにあっては、ト
ナー補給カートリッジを機体に装着すると、その装着部
分に設けられた弁機構が開口して、トナー補給カートリ
ッジ内のトナーは、該カートリッジ内に封入されたガス
の圧力によって、弁機構の開口部及び補給路を経てトナ
ーを複写機の現像装置に補給され、反対にカートリッジ
を機体から離脱すると、弁機構が閉鎖して現像装置への
補給路中にあるトナーが、補給路の内圧によって逆流し
て機体外に溢流するのが防止される。Function: When the toner replenishment cartridge is installed in the machine body, the valve mechanism installed in the installed part opens, and the toner in the toner replenishment cartridge is discharged from the cartridge. Due to the pressure of the gas sealed in the cartridge, toner is supplied to the developing device of the copying machine through the opening of the valve mechanism and the supply path, and conversely, when the cartridge is removed from the machine, the valve mechanism closes and the toner is supplied to the developing device. The toner in the supply path is prevented from flowing backwards and overflowing to the outside of the machine due to the internal pressure of the supply path.
トナー補給カートリッジが機体に装着されると、そのノ
ズルがシール部材に装着されて、該シール部材及び弁体
を一方に移動させて弁座の弁口を開口し、これによって
カートリッジと現像装置とを連通して現像装置内にトナ
ーを補給し、これとは反対にカートリッジを機体から離
脱させると、それに応じてシール部材及び弁体が弁口を
閉鎖して、補給路内のトナーの機体外への渦流を防止し
た後、カートリッジのノズルがシール部材から離脱する
。When the toner replenishment cartridge is installed in the machine, its nozzle is attached to the sealing member, and the sealing member and valve body are moved to one side to open the valve opening of the valve seat, thereby connecting the cartridge and the developing device. When the cartridge is removed from the machine body, the sealing member and the valve body close the valve port, and the toner in the supply path is released from the machine body. After preventing the vortex flow, the nozzle of the cartridge separates from the sealing member.
実施例
第１，２図に示す実施例において、前記従来のものと同
様の部分には、同一の符号１〜４を付した。Embodiment In the embodiment shown in FIGS. 1 and 2, parts similar to those of the conventional system are given the same reference numerals 1 to 4.
第１図はカートリッジ１が機体２に装着されている状態
を示し、第２図はカートリッジ１が機体２から離脱した
状態を示す。1 shows a state in which the cartridge 1 is attached to the body 2, and FIG. 2 shows a state in which the cartridge 1 is removed from the body 2.
機体２に皿状のブラケットホルダ６が取付けられて、そ
の底部から下方へ突出したパイプ部分７にホース４が接
続され、ホルダ６の上部にブラケット８が取付けられ、
このブラケット８のほぼ中心部に上部が開口し、かつ下
方側面に弁口９を有する有底の筒状弁座ｌＯが取付けら
れている。A dish-shaped bracket holder 6 is attached to the fuselage 2, a hose 4 is connected to a pipe portion 7 protruding downward from the bottom thereof, a bracket 8 is attached to the upper part of the holder 6,
A bottomed cylindrical valve seat 10 having an open upper portion and a valve port 9 on the lower side surface is attached to approximately the center of the bracket 8.
この筒状弁座１０内に上下端に開口部を有する筒状の弁
体１１が上下動可能に収納され、この弁体１１はその底
部と弁座ｌＯの底面との間に介装されたばね１２によっ
て常時上昇傾向を付与されており、弁体１１の下端の関
口部は装着時（第１図）に弁口２９と連通し、離脱時（
第２図ンには弁口９と非連通となったうえ５弁座１０の
側面によって閉鎖されるようになっており、頂部には弁
体１１の上端開口部と連通ずる透孔１４を有するシール
部材１３が取付けられており、この透孔１４の上部には
ノズル３を挿入する拡大透孔１５が設けられている。A cylindrical valve body 11 having openings at the upper and lower ends is housed in the cylindrical valve seat 10 so as to be movable up and down. 12 gives a constant upward tendency, and the lower end of the valve body 11 communicates with the valve port 29 when installed (Fig. 1), and when removed (Fig. 1).
In Fig. 2, it is not in communication with the valve port 9 and is closed by the side surface of the valve seat 10, and has a through hole 14 at the top that communicates with the upper end opening of the valve body 11. A seal member 13 is attached, and an enlarged through hole 15 into which the nozzle 3 is inserted is provided above the through hole 14 .
そして機体２には上動時にシール部材１３の上部が係合
して停止するための透孔１６を有する停止部材１７が設
けられている。The body 2 is provided with a stop member 17 having a through hole 16 with which the upper part of the seal member 13 engages and stops during upward movement.
第１図の装着状態にあっては、トナーカートリッジ１の
ノズル３によってシール部材１３を介してばね１２の押
圧力に抗して弁体１１を下降し、その下端開口部が弁口
９と連通ずることとなり。In the installed state shown in FIG. 1, the valve body 11 is lowered by the nozzle 3 of the toner cartridge 1 through the seal member 13 against the pressing force of the spring 12, and its lower end opening is connected to the valve port 9. It will pass.
この際ノズル３はカートリッジ１内を上昇して開口し、
カートリッジ１とホース４とを連通ずることとなるため
、カートリッジ１内のトナーは矢印に示すようにホース
４内に流入することとなる。At this time, the nozzle 3 rises inside the cartridge 1 and opens.
Since the cartridge 1 and the hose 4 are communicated with each other, the toner in the cartridge 1 flows into the hose 4 as shown by the arrow.
このような状態から、第２図に示すようにカートリッジ
１を機体２から離脱させるため上動すると、ばね１２の
押圧力によって弁体１１が上動して下端開口部が弁口９
と非連通となったうえ、その上方において弁座１０の内
面によって閉鎖され、シール部材１３は停止部材１７に
よって上動を停止され、カートリッジ１はその後も上昇
を続けることにより、ノズル３は突出して閉鎖されるこ
ととなる。このようにして弁口９と弁体１１の内部との
連通が遮断されるので、ホース４内のトナーが内圧によ
って逆流しようとしても、弁体１１によって阻止されて
外部に溢流することがない。In this state, when the cartridge 1 is moved upward to remove it from the body 2 as shown in FIG.
The nozzle 3 protrudes as the cartridge 1 continues to rise. It will be closed. In this way, communication between the valve port 9 and the inside of the valve body 11 is cut off, so even if the toner inside the hose 4 tries to flow backwards due to internal pressure, it is blocked by the valve body 11 and does not overflow to the outside. .
この場合ノズル３がシール部材１３にきっちり嵌合しな
いうちに、ノズル３及び弁口９が開口することのないよ
うに、ノズル３のシール部材１３によるセット力が、ノ
ズル３及び弁口９を開閉する力より弱くしておく、ただ
このようにすると、シールが不完全になる恐れがあるの
で、これを防止するために採用された１つの構造が第３
図に示されており、これはシール部材１３に中心にノズ
ル３とほぼ同径の透孔のあるカバー１８を装着し、この
カバー１８の内面に沿って前記透孔より小径の中心孔を
有する軟質の補助シール部材１９を装着している。この
ことによりノズル３をシール部材１３の透孔１５に挿入
した際は、同図（Ａ）に示すように補助シール部材１９
がノズル３の周面に添着してシール力の不足を補うこと
となる。そしてノズル３を引抜いた際は、同図（Ｂ）に
示すようになってカバー１８により補助シール部材１９
が上方にめくれ上るのが抑止される。前記のようになっ
ているので、ノズル３をシール部材１３から引抜く際の
嵌合解除力は、ノズル３をシール部材１３に挿入する際
の嵌合セット力より大きくなり、それによってノズル３
の閉鎖力が事故等によって弱くなった場合でも、嵌合解
除力によってノズルを閉鎖させることとなる。In this case, the setting force of the seal member 13 of the nozzle 3 is applied to open and close the nozzle 3 and the valve port 9 so that the nozzle 3 and the valve port 9 do not open before the nozzle 3 is tightly fitted into the seal member 13. However, if you do this, there is a risk that the seal will be incomplete, so one structure adopted to prevent this is the third
As shown in the figure, a cover 18 having a through hole approximately the same diameter as the nozzle 3 is attached to the sealing member 13 in the center, and a center hole having a smaller diameter than the through hole is provided along the inner surface of the cover 18. A soft auxiliary seal member 19 is attached. As a result, when the nozzle 3 is inserted into the through hole 15 of the seal member 13, the auxiliary seal member 19
is attached to the circumferential surface of the nozzle 3 to compensate for the lack of sealing force. When the nozzle 3 is pulled out, the cover 18 closes the auxiliary seal member 19 as shown in FIG.
This prevents the material from curling upward. As described above, the unfitting force when pulling out the nozzle 3 from the sealing member 13 is greater than the fitting setting force when inserting the nozzle 3 into the sealing member 13, so that the nozzle 3
Even if the closing force of the nozzle becomes weak due to an accident or the like, the nozzle will be closed by the unfitting force.
第４，５図にはこの発明の他の実施例が示されている。4 and 5 show another embodiment of the invention.
この実施例にあっては、トナーカートリッジ１のノズル
３が着脱可能となっている連結部材２０は、機体２に一
端が枢支され、ばね２１で常時上昇傾向が付与されてい
るブラケット２２の自由端近くに取付けられている。そ
して連結部材２０の下部にはしやばら部材２３の上端が
連結され。In this embodiment, the connecting member 20 to which the nozzle 3 of the toner cartridge 1 is removably attached is attached to the free end of the bracket 22, which has one end pivoted to the body 2 and is always given an upward tendency by a spring 21. mounted near the end. The upper end of the shibara member 23 is connected to the lower part of the connecting member 20.
このじやばら部材２３は支持板２４に取付（ブられてい
て、その下端にはホース４の一端が接続されている。This spring member 23 is attached to a support plate 24 (blanked), and one end of the hose 4 is connected to its lower end.
ホース４の他端には吐呂ケース２５の入口２６が接続さ
れ、この吐出ケース２５には出口２７が設けられ、この
ケース２５内にばばね２８によって、入口２６を常時閉
鎖する傾向が付与された弁体２９が収容され、この弁体
２９は図示しない現像液濃度センサの出力により作動す
るソレノイド３０により操作され、出口２７から図示し
ない現像装置にトナーを供給するようになっている。An inlet 26 of a discharge case 25 is connected to the other end of the hose 4, and an outlet 27 is provided in the discharge case 25. A spring 28 in the case 25 tends to keep the inlet 26 closed at all times. The valve body 29 is operated by a solenoid 30 activated by the output of a developer concentration sensor (not shown), and supplies toner from an outlet 27 to a developing device (not shown).
第４図はトナーカートリッジ１が連結部材２０に装着さ
れた状態を示し、ブラケット２２ばばね２１の押圧力に
抗して下降し、ノズル３は押上げられでカートリッジｌ
の内部とホース４はじやばら部材２３を介して連通し、
ソレノイド３０によって弁体２９がばねの押圧力に抗し
て引張られて。FIG. 4 shows a state in which the toner cartridge 1 is attached to the connecting member 20, and the bracket 22 is lowered against the pressing force of the spring 21, and the nozzle 3 is pushed up and the cartridge l
The inside of the hose 4 communicates with each other via a spring member 23,
The valve body 29 is pulled by the solenoid 30 against the pressing force of the spring.
入口２６を開口しているので、カートリッジ１内のトナ
ーは現像装置に補給される。Since the inlet 26 is open, the toner in the cartridge 1 is supplied to the developing device.
第５図はトナーカートリッジ１が連結部材２０から離脱
された状態を示し、連結部材２０はブラケット２２とと
もにばね２１によって上動し、ブラケット２２は停止部
材３１に係合して停止する。連結部材２０のこの上動に
より、これに連結されているしやばら部材２３の上端が
ともに上動して、しやばら部材２３は拡大し、ホース４
内にあってその内圧により逆流するトナーは、この拡大
したしゃばら部材２３によって吸収されてしゃばら部材
２３外に溢流することがない、そしてこの際吐出ケース
２５はソレノイド３０の不作動により。FIG. 5 shows a state in which the toner cartridge 1 is separated from the connecting member 20, and the connecting member 20 is moved upward by the spring 21 together with the bracket 22, and the bracket 22 is engaged with the stop member 31 and stopped. Due to this upward movement of the connecting member 20, the upper end of the shingle member 23 connected thereto also moves upward, and the shivering member 23 expands, and the hose 4
The toner that is inside and flows backward due to the internal pressure is absorbed by the enlarged baffle member 23 and does not overflow to the outside of the baffle member 23. At this time, the discharge case 25 is inactivated because the solenoid 30 is not activated.
ばね２８の押圧力で入口２６を閉鎖する。The inlet 26 is closed by the pressing force of the spring 28.
発明の効果
この発明は前記のようであって、トナー補給カートリッ
ジの機体への装着、離脱に対応して開閉する弁機構また
は縮小、拡大するじやばら部材を設けたので、カートリ
ッジの装着時にあっては、自動的に補給路を開放して該
カートリッジから現像装置へ円滑にトナーの補給を行い
、離脱時には弁機構により自動的に補給路を閉鎖し、ま
たはしやばら部材を自動的に拡大し、これらのことによ
る補給路内の圧力により逆流するトナーの外部への溢流
を防止し、この溢流によるトナーの損失と、外部の汚損
とを防止することができるという効果がある。Effects of the Invention The present invention is as described above, and is provided with a valve mechanism that opens and closes in response to attachment and detachment of the toner replenishment cartridge from the machine body, and a valve mechanism that contracts and expands. When the cartridge is removed, the supply path is automatically opened to smoothly replenish toner from the cartridge to the developing device, and when the cartridge is removed, the supply path is automatically closed by a valve mechanism, or the loose members are automatically expanded. However, due to the pressure in the replenishing path due to these factors, the backflow of toner can be prevented from overflowing to the outside, and the loss of toner and the staining of the outside due to this overflow can be prevented.
またこの発明は弁機構を筒状弁座と、その内部に配置さ
れた筒状弁体と、この弁体の端部に取付けられて、トナ
ー補給カートリッジのノズルが着脱可能となっているシ
ール部材とを有しているので、シール部材へのカートリ
ッジノズルの装着によって自動的に弁座及びカートリッ
ジの弁口を開放してカートリッジ内のトナーを補給路に
供給し、反対にシール部材からのカートリッジノズルの
離脱の際は、自動的に弁座及びカートリッジの弁口を閉
鎖し、この間全く余分な操作をすることなく、また弁口
の閉鎖により補給路内のトナーの外部への溢流が迅速か
つ確実に防止されるという効果がある。Further, the present invention includes a valve mechanism including a cylindrical valve seat, a cylindrical valve body disposed inside the valve seat, and a seal member attached to an end of the valve body to which a nozzle of a toner replenishment cartridge can be attached and detached. When the cartridge nozzle is attached to the sealing member, the valve seat and the valve port of the cartridge are automatically opened to supply the toner in the cartridge to the supply path, and conversely, the toner from the sealing member is removed from the cartridge nozzle. When the cartridge is removed, the valve seat and the valve port of the cartridge are automatically closed, and during this time, there is no need for any extra operations, and by closing the valve port, the toner in the supply path quickly and overflows to the outside. This has the effect of being reliably prevented.
第１図はこの発明の実施例のカートリッジ装着時の状態
を示す一部縦断正面図、第２図は同上のカートリッジ離
脱時の同様の正面図、第３図は同上のシール部材の変形
例の異る状態を示す縦断正面図、第４図はこの発明の他
の実施例のカートリッジ装着時の状態を示す一部縦断正
面図、第５図は同上のカートリッジ離脱時の同様の正面
図、第６、第７図はこの種の補給装置の従来の典形例の
カートリッジ装着、離脱時の一部縦断正面図である。
１・・・トナーカートリッジ、２・・・機体、３・・・
ノズル、４・・・ホース、９・・・弁口、１０・・・筒
状弁座、１１・・筒状弁体、１７・・・停止部材、２０
・・・連結部材、２３・・しやばら部材
篤３図
（Ａ）
（Ｂ）
帛４図
篤６図
篤７固FIG. 1 is a partially longitudinal front view showing the cartridge according to the embodiment of the present invention when it is installed, FIG. 2 is a front view similar to the above when the cartridge is removed, and FIG. 3 is a modification of the sealing member shown in the above. FIG. 4 is a partially vertical front view showing a state in which a cartridge according to another embodiment of the present invention is installed; FIG. 5 is a similar front view when the same cartridge is removed; FIG. 6 and 7 are partially longitudinal sectional front views of a conventional typical example of this type of replenishment device when a cartridge is installed and removed. 1... Toner cartridge, 2... Machine body, 3...
Nozzle, 4... Hose, 9... Valve port, 10... Cylindrical valve seat, 11... Cylindrical valve body, 17... Stop member, 20
... Connecting member, 23... Shiyabara parts Atsushi Figure 3 (A) (B) Figure 4 Atsushi Figure 6 Atsushi 7 Hardness
Claims (1)
着する複写機のトナー補給装置において、トナー補給カ
ートリッジを装着する機体の部分に、トナー補給カート
リッジの装着、離脱に対応して開閉する弁機構を設けた
ことを特徴とする複写機のトナー補給装置。２、弁機構
は機体に取付けられた筒状弁座と、この弁座内に移動可
能に設けられて弁座の弁口を開閉する筒状弁体と、この
弁体の端部に取付けられて、トナー補給カートリッジの
ノズルが着脱可能となっているシール部材とを有し、該
カートリッジの装着時には該カートリッジの押圧力によ
ってシール部材及び筒状弁体が一方向に移動して弁口を
開口し、該カートリッジの離脱時にはシール部材及び筒
状弁体の他方向への移動によって弁口が閉鎖されるよう
になっており、ノズルのシール部材によるカセット力が
、ノズル及び弁体の開口力より弱くなっている請求項１
に記載の複写機のトナー補給装置。 ３、スプレー缶式のトナー補給カートリッジを機体に装
着する複写機のトナー補給装置において、トナー補給カ
ートリッジを装着する機体の部分に、トナー補給カート
リッジの装着、離脱に対応して縮小、拡大するじやばら
部材を設けたことを特徴とする複写機のトナー補給装置
。[Scope of Claims] 1. In a toner replenishment device for a copying machine in which a spray can-type toner replenishment cartridge is mounted on the machine body, a part of the machine body to which the toner replenishment cartridge is mounted is provided with a part that corresponds to the mounting and removal of the toner replenishment cartridge. A toner replenishing device for a copying machine characterized by being provided with a valve mechanism that opens and closes. 2. The valve mechanism consists of a cylindrical valve seat attached to the fuselage, a cylindrical valve body that is movably installed within the valve seat to open and close the valve opening of the valve seat, and a cylindrical valve body that is attached to the end of the valve body. The nozzle of the toner replenishment cartridge has a sealing member that is removable, and when the cartridge is installed, the sealing member and the cylindrical valve body move in one direction due to the pressing force of the cartridge to open the valve port. However, when the cartridge is removed, the valve port is closed by the movement of the seal member and the cylindrical valve body in the other direction, and the cassette force by the nozzle seal member is greater than the opening force of the nozzle and valve body. Claim 1 which is weaker
A toner replenishing device for a copying machine described in . 3. In the toner replenishment device of a copying machine in which a spray can type toner replenishment cartridge is attached to the machine body, there is a slot on the part of the machine body where the toner replenishment cartridge is installed, which shrinks and expands in response to the installation and removal of the toner replenishment cartridge. A toner replenishing device for a copying machine, characterized in that a separate member is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19813888A JPH0247678A (en) | 1988-08-09 | 1988-08-09 | Toner replenishing device for copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19813888A JPH0247678A (en) | 1988-08-09 | 1988-08-09 | Toner replenishing device for copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0247678A true JPH0247678A (en) | 1990-02-16 |
Family
ID=16386084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19813888A Pending JPH0247678A (en) | 1988-08-09 | 1988-08-09 | Toner replenishing device for copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0247678A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1376258A2 (en) * | 2002-05-24 | 2004-01-02 | Canon Kabushiki Kaisha | Developer supply apparatus and the mounting of a developer supply container |
| JP2007178806A (en) * | 2005-12-28 | 2007-07-12 | Kyocera Mita Corp | Powder storing container |
| JP2008009228A (en) * | 2006-06-30 | 2008-01-17 | Kyocera Mita Corp | Powder storage container |
-
1988
- 1988-08-09 JP JP19813888A patent/JPH0247678A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1376258A2 (en) * | 2002-05-24 | 2004-01-02 | Canon Kabushiki Kaisha | Developer supply apparatus and the mounting of a developer supply container |
| EP1376258A3 (en) * | 2002-05-24 | 2004-01-07 | Canon Kabushiki Kaisha | Developer supply apparatus and the mounting of a developer supply container |
| US6952549B2 (en) | 2002-05-24 | 2005-10-04 | Canon Kabushiki Kaisha | Developer supply apparatus and developer supply container |
| US7110709B2 (en) | 2002-05-24 | 2006-09-19 | Canon Kabushiki Kaisha | Developer supply apparatus and developer supply container |
| JP2007178806A (en) * | 2005-12-28 | 2007-07-12 | Kyocera Mita Corp | Powder storing container |
| JP2008009228A (en) * | 2006-06-30 | 2008-01-17 | Kyocera Mita Corp | Powder storage container |
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