JP6752861B2 - Developer storage unit, process cartridge, electrophotographic image forming device - Google Patents

Developer storage unit, process cartridge, electrophotographic image forming device Download PDF

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JP6752861B2
JP6752861B2 JP2018209967A JP2018209967A JP6752861B2 JP 6752861 B2 JP6752861 B2 JP 6752861B2 JP 2018209967 A JP2018209967 A JP 2018209967A JP 2018209967 A JP2018209967 A JP 2018209967A JP 6752861 B2 JP6752861 B2 JP 6752861B2
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developer
opening
bag
sealing member
developer storage
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JP2019020753A (en
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松崎 祐臣
祐臣 松崎
松下 正明
正明 松下
藤崎 達雄
達雄 藤崎
正基 古谷
正基 古谷
哲夫 上杉
哲夫 上杉
保井 功二郎
功二郎 保井
松永 智教
智教 松永
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Canon Inc
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Canon Inc
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本発明は、画像形成装置、および画像形成装置に使用される現像剤収納容器、現像剤収納ユニット、現像装置、カートリッジに関するものである。 The present invention relates to an image forming apparatus, a developing agent storage container, a developing agent storing unit, a developing apparatus, and a cartridge used in the image forming apparatus.

ここで画像形成装置とは、例えば電子写真画像形成プロセスを用いて記録媒体に画像を形成するもので、例えば電子写真複写機、電子写真プリンター(例えば、LEDプリンター、レーザービームプリンタ等)、電子写真ファクシミリ装置等が含まれる。 Here, the image forming apparatus is for forming an image on a recording medium by using, for example, an electrophotographic image forming process, for example, an electrophotographic copying machine, an electrophotographic printer (for example, an LED printer, a laser beam printer, etc.), an electrophotographic. Includes facsimile machines and the like.

またカートリッジとは、少なくとも現像手段と現像剤を収納した現像装置を一体的に構成して画像形成装置本体に着脱可能にしたものや、現像装置と少なくとも感光体を有する感光体ユニットを一体的に構成して画像形成装置本体に着脱可能にしたものを言う。 Further, the cartridge is a cartridge in which at least a developing means and a developing device containing a developing agent are integrally configured so as to be detachable from the image forming apparatus main body, or a developing device and a photoconductor unit having at least a photoconductor are integrally formed. It is configured and attached to and detached from the image forming apparatus main body.

また現像剤収納容器および現像剤収納ユニットは、前記画像形成装置または前記カートリッジに収納されるものである。現像剤収納容器及び現像剤収納ユニットは、少なくとも現像剤を収納するための可撓性容器を備えている。 The developer storage container and the developer storage unit are stored in the image forming apparatus or the cartridge. The developer storage container and the developer storage unit include at least a flexible container for storing the developer.

従来の電子写真形成プロセスを用いた電子写真画像形成装置には、電子写真感光体及びそれに作用するプロセス手段を一体的にカートリッジ化して、このカートリッジを電子写真画像形成装置本体に着脱可能とするプロセスカートリッジ方式が採用されている。 In the electrophotographic image forming apparatus using the conventional electrophotographic image forming process, the electrophotographic photosensitive member and the process means acting on the electrophotographic photosensitive member are integrally formed into a cartridge, and the cartridge can be attached to and detached from the main body of the electrophotographic image forming apparatus. The cartridge method is adopted.

このようなプロセスカートリッジでは、図57で示す様に現像剤(トナー、キャリア等)を収納する現像剤収納枠体31に設けた開口部を封止部材で封止している。そして、使用時に封止部材であるトナーシール32の接合部33を引き剥がすことで開口部が開封され現像剤の供給が可能となる方式が広く採用されている(特許文献1、図13)。 In such a process cartridge, as shown in FIG. 57, an opening provided in the developer storage frame 31 for storing the developer (toner, carrier, etc.) is sealed with a sealing member. Then, a method is widely adopted in which the opening is opened by peeling off the joint portion 33 of the toner seal 32 which is a sealing member at the time of use, and the developer can be supplied (Patent Document 1, FIG. 13).

また、プロセスカートリッジ製造時に現像剤の充填工程でプロセスカートリッジの機内に現像剤が飛散する問題に対して変形可能な内部容器を用いたものが考案されている(特許文献1)。 Further, a product using an internal container that can be deformed against the problem that the developer is scattered in the machine of the process cartridge in the process of filling the developer during the production of the process cartridge has been devised (Patent Document 1).

特開平4−66980号公報Japanese Unexamined Patent Publication No. 4-66980

しかしながら、上記従来例では下記の課題があった。 However, the above-mentioned conventional example has the following problems.

現像剤の供給の操作性向上、機内飛散防止により現像剤供給装置のコストダウンを目的として、変形可能な内部容器に現像剤を収納する方法が特許文献1に記載されている。しかしこの例では開封後における現像剤の排出に関する動作、機構が示されていない。 Patent Document 1 describes a method of storing a developer in a deformable internal container for the purpose of improving the operability of supplying the developer and preventing the developer from scattering in the machine to reduce the cost of the developer supply device. However, in this example, the operation and mechanism related to the discharge of the developer after opening are not shown.

そこで本発明の目的は、上記の課題を解決し、変形可能な現像剤収納部材からの現像剤の排出を良好に行うことを目的とするものである。 Therefore, an object of the present invention is to solve the above-mentioned problems and to satisfactorily discharge the developer from the deformable developer storage member.

上記目的を達成するため、本出願に係る発明の構成の一つは以下のようなものである。現像剤を収納するための空間と、前記空間から前記現像剤を排出するための複数の開口とが備えられた容器本体と、前記複数の開口を覆うように、前記容器本体の外面に取り付けられた封止部材と、前記空間の内側に向けて、前記容器本体を押圧するための押圧部材と、回転部材と、を備え、前記容器本体は、前記空間の内側に向けて変形可能であり、かつ前記容器本体は、前記空間の外側に向けて変形可能であり、前記封止部材は前記回転部材に取り付けられ、前記回転部材の回転によって前記容器本体から取り外されることを特徴とする現像剤収納ユニット。 In order to achieve the above object, one of the configurations of the invention according to the present application is as follows. A container body provided with a space for storing the developer and a plurality of openings for discharging the developer from the space, and attached to the outer surface of the container body so as to cover the plurality of openings. The container body is provided with a sealing member, a pressing member for pressing the container body toward the inside of the space, and a rotating member, and the container body can be deformed toward the inside of the space. and said container body, Ri deformable der outward of the space, the sealing member is attached to said rotary member, and wherein the Rukoto removed from the container body by rotation of said rotary member developing Agent storage unit.

以上説明したように、本発明によれば、変形可能な現像剤収納部材からの現像剤の排出を良好に行うことができる。 As described above, according to the present invention, the developer can be satisfactorily discharged from the deformable developer storage member.

本発明の実施の形態におけるプロセスカートリッジの主断面図である。It is a main sectional view of the process cartridge in embodiment of this invention. 本発明の実施の形態における画像形成装置の主断面図である。It is a main sectional view of the image forming apparatus in embodiment of this invention. 本発明の実施の形態における開封部材を有した現像剤収納容器の断面からの斜視図である。It is a perspective view from the cross section of the developer storage container which has the opening member in embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの開封前の断面図である。It is sectional drawing before opening of the developer storage unit in embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの開封直前の断面図である。It is sectional drawing just before opening of the developer storage unit in embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの開封途中の断面図である。It is sectional drawing in the middle of opening of the developer storage unit in embodiment of this invention. 本発明の実施の形態における排出部の開封過程の説明断面図である。It is explanatory sectional drawing of the opening process of the discharge part in embodiment of this invention. 本発明の実施の形態における排出部の開封過程の説明断面図である。It is explanatory sectional drawing of the opening process of the discharge part in embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの開封後の断面図である。It is sectional drawing after opening of the developer storage unit in embodiment of this invention. 本発明の実施の形態における現像剤収納容器の開封前の説明図である。It is explanatory drawing before opening of the developer storage container in embodiment of this invention. 本発明の実施の形態における現像剤収納容器の開封途中の説明図である。It is explanatory drawing in the middle of opening of the developer storage container in embodiment of this invention. 本発明の実施の形態における排出部の説明断面図である。It is explanatory drawing sectional drawing of the discharge part in embodiment of this invention. 本発明の実施の形態ではない開封困難な現像剤収納容器の説明図である。It is explanatory drawing of the developer storage container which is difficult to open which is not the Embodiment of this invention. 本発明の実施の形態ではない開封困難な現像剤収納容器の断面図である。It is sectional drawing of the developer storage container which is difficult to open which is not the embodiment of this invention. 本発明の実施の形態ではない開封困難な現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit which is difficult to open which is not the embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in embodiment of this invention. 本発明の第二の実施の形態における現像剤収納容器の断面図である。It is sectional drawing of the developer storage container in the 2nd Embodiment of this invention. 本発明の第二の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in the 2nd Embodiment of this invention. 本発明の実施の形態における現像剤収納容器の説明図である。It is explanatory drawing of the developer storage container in embodiment of this invention. 本発明の実施の形態における現像剤収納容器の説明図である。It is explanatory drawing of the developer storage container in embodiment of this invention. 本発明の実施の形態における現像剤収納容器の説明図である。It is explanatory drawing of the developer storage container in embodiment of this invention. 本発明の実施の形態ではない現像剤収納容器の説明図である。It is explanatory drawing of the developer storage container which is not the Embodiment of this invention. 本発明の実施の形態における現像剤収納容器の説明図である。It is explanatory drawing of the developer storage container in embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの説明図である。It is explanatory drawing of the developer storage unit in embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの説明図である。It is explanatory drawing of the developer storage unit in embodiment of this invention. 本発明の実施の形態における現像剤収納容器の固定部の説明図である。It is explanatory drawing of the fixing part of the developer storage container in embodiment of this invention. 本発明の実施の形態における現像剤収納容器の開口部の説明図である。It is explanatory drawing of the opening of the developer storage container in embodiment of this invention. 本発明の実施の形態における現像剤収納容器の断面図である。It is sectional drawing of the developer storage container in embodiment of this invention. 本発明の実施の形態における現像剤収納容器の説明図である。It is explanatory drawing of the developer storage container in embodiment of this invention. 開封部材を有した現像剤収納容器の説明図である。It is explanatory drawing of the developer storage container which has an opening member. 本発明の実施の形態における現像剤収納ユニットの説明図である。It is explanatory drawing of the developer storage unit in embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの説明図である。It is explanatory drawing of the developer storage unit in embodiment of this invention. 本発明の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in embodiment of this invention. 本発明の実施例3の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 3 of this invention. 本発明の実施例3の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 3 of this invention. 本発明の実施例4の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 4 of this invention. 本発明の実施例4の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 4 of this invention. 本発明の実施例5の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 5 of this invention. 本発明の実施例5の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 5 of this invention. 本発明の実施例8の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 8 of this invention. 本発明の実施例8の実施の形態における開口部の概略説明図である。It is the schematic explanatory drawing of the opening in Embodiment 8 of this invention. 本発明の実施例8の実施の形態における開口部の概略説明図である。It is the schematic explanatory drawing of the opening in Embodiment 8 of this invention. 本発明の実施例8の実施の形態における開口部の概略説明図である。It is the schematic explanatory drawing of the opening in Embodiment 8 of this invention. 本発明の実施例6の実施の形態における開口部の概略説明図である。It is the schematic explanatory drawing of the opening in Embodiment 6 of this invention. 本発明の実施例6の実施の形態における開口部の概略説明図である。It is the schematic explanatory drawing of the opening in Embodiment 6 of this invention. 本発明の実施例7の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 7 of this invention. 本発明の実施例7の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 7 of this invention. 本発明の実施例7の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 7 of this invention. 本発明の実施例1の実施の形態における現像剤袋の概略図である。It is the schematic of the developer bag in Embodiment 1 of this invention. 本発明の実施例1の実施の形態における現像剤袋の概略図である。It is the schematic of the developer bag in Embodiment 1 of this invention. 本発明の実施例1の実施の形態における現像剤収納ユニットの概略図である。It is the schematic of the developer storage unit in Embodiment 1 of this invention. 本発明の実施の形態における開封部材への駆動伝達の概略説明図である。It is the schematic explanatory drawing of the drive transmission to the opening member in embodiment of this invention. 本発明の実施例7の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 7 of this invention. 本発明の実施例5の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 5 of this invention. 本発明の実施例4の実施の形態における現像剤収納ユニットの断面図である。It is sectional drawing of the developer storage unit in Embodiment 4 of this invention. 従来例を説明する図である。It is a figure explaining a conventional example.

以下の説明で、現像剤収納容器は、少なくとも、可撓性容器と可撓性容器に設けられた現像剤を排出するための開口部を封止する封止部材を備えるものを指す。 In the following description, the developer storage container refers to a container including at least a flexible container and a sealing member provided in the flexible container for sealing an opening for discharging the developer.

現像剤を収納する前の現像剤収納容器を、現像剤を収納する為の現像剤収納容器37とする。現像剤を収納し封止部材を開封するための開封部材を備えた現像剤収納容器を、開封部材を有した現像剤収納容器30とする。現像剤を収納し、封止部材を開封するための開封部材を備えていない現像剤収納容器を、現像剤を収納した現像剤収納容器26とする。 The developer storage container before storing the developer is a developer storage container 37 for storing the developer. The developer storage container provided with the opening member for storing the developing agent and opening the sealing member is referred to as the developing agent storage container 30 having the opening member. The developer storage container that stores the developer and does not have the opening member for opening the sealing member is referred to as the developer storage container 26 that stores the developer.

なお、簡略化のため、現像剤収納容器37、現像剤収納容器30、現像剤収納容器26と符号を分けて説明をする。 For the sake of simplicity, the developer storage container 37, the developer storage container 30, and the developer storage container 26 will be described separately by reference numerals.

現像剤収納ユニットは、少なくとも現像剤収納容器と現像剤収納容器を収納する枠体を備えるものである。 The developer storage unit includes at least a developer storage container and a frame for storing the developer storage container.

図1に本発明を適用できる現像剤収納ユニットを有するプロセスカートリッジの主断面図、図2に本発明を適用できる画像形成装置の主断面図を図示する。 FIG. 1 shows a main cross-sectional view of a process cartridge having a developer storage unit to which the present invention can be applied, and FIG. 2 shows a main cross-sectional view of an image forming apparatus to which the present invention can be applied.

<プロセスカートリッジの構成概要>
プロセスカートリッジは、像担持体と、像担持体に作用するプロセス手段を備えたものである。ここでプロセス手段としては、例えば像担持体の表面を帯電させる帯電手段、像担持体に像を形成する現像装置、像担持体表面に残留した現像剤(トナー、キャリア等を含む)を除去するためのクリーニング手段がある。
<Outline of process cartridge configuration>
The process cartridge includes an image carrier and a process means that acts on the image carrier. Here, as the process means, for example, a charging means for charging the surface of the image carrier, a developing device for forming an image on the image carrier, and a developer (including toner, carriers, etc.) remaining on the surface of the image carrier are removed. There is a cleaning means for.

本実施形態のプロセスカートリッジAは、図1に示すように像担持体である感光体ドラム11の周囲に帯電手段である帯電ローラ12、そしてクリーニング手段として弾性を有するクリーニングブレード14を有するクリーナーユニット24を備えている。また、プロセスカートリッジAは、第一の枠体17と、第二の枠体18を有する現像装置38を備えている。プロセスカートリッジAは、クリーナーユニット24と現像装置38とを一体とし、図2に示すように画像形成装置本体Bに対して、着脱自在に構成されている。現像装置38は、現像手段である現像ローラ13と現像ブレード15、現像剤供給ローラ23、現像剤を収納する現像剤を収納した現像剤収納容器26を備える。現像ローラ13と、現像ブレード15は、第一の枠体17に支持されている。 As shown in FIG. 1, the process cartridge A of the present embodiment has a cleaner unit 24 having a charging roller 12 as a charging means and an elastic cleaning blade 14 as a cleaning means around a photoconductor drum 11 which is an image carrier. Is equipped with. Further, the process cartridge A includes a developing device 38 having a first frame body 17 and a second frame body 18. The process cartridge A integrates the cleaner unit 24 and the developing device 38, and is detachably configured with respect to the image forming apparatus main body B as shown in FIG. The developing apparatus 38 includes a developing roller 13 and a developing blade 15 which are developing means, a developing agent supply roller 23, and a developing agent storage container 26 containing a developing agent for storing the developing agent. The developing roller 13 and the developing blade 15 are supported by the first frame body 17.

<画像形成装置の構成概要>
このプロセスカートリッジAは図2に示すような画像形成装置本体Bに装着されて画像形成に用いられる。画像形成は装置下部に装着されたシートカセット6から搬送ローラ7によってシートSを搬送し、このシート搬送と同期して、感光体ドラム11に露光装置8から選択的な露光をして潜像を形成する。現像剤は、スポンジ状の現像剤供給ローラ23によって現像ローラ13(現像剤担持体)に供給され、現像ブレード15により現像ローラ13表面に薄層担持される。現像ローラ13に現像バイアスを印加する事によって、潜像に応じて現像剤を供給し現像剤像に現像する。この像を転写ローラ9へのバイアス電圧印加によって搬送されるシートSに転写する。シートSは定着装置10へ搬送され画像定着し、排紙ローラ1によって装置上部の排紙部3に排出される。
<Outline of configuration of image forming device>
This process cartridge A is attached to the image forming apparatus main body B as shown in FIG. 2 and used for image forming. In image formation, the sheet S is conveyed from the sheet cassette 6 mounted on the lower part of the apparatus by the conveying roller 7, and in synchronization with the sheet conveying, the photoconductor drum 11 is selectively exposed from the exposure apparatus 8 to obtain a latent image. Form. The developer is supplied to the developing roller 13 (developer carrier) by the sponge-shaped developer supply roller 23, and is supported in a thin layer on the surface of the developing roller 13 by the developing blade 15. By applying a development bias to the developing roller 13, a developing agent is supplied according to the latent image to develop the developing agent image. This image is transferred to the sheet S conveyed by applying a bias voltage to the transfer roller 9. The sheet S is conveyed to the fixing device 10 to fix the image, and is discharged to the paper ejection section 3 on the upper part of the device by the paper ejection roller 1.

<現像剤収納ユニットの構成概要>
次に現像剤収納ユニット25の構成について図3、図4、図7(a)、図20を用いて述べる。ここで図3は現像剤収納容器30の断面からの斜視図、図4は現像装置38の断面図、図7は可撓性容器である現像剤袋16の現像剤を排出する排出部35近傍の詳細断面図、図20は現像剤収納容器26の断面からの斜視図である。なお、断面図は、開封部材20と、開口部35aと、固定部16d、16eと、を通る平面である。また、断面図は、開封部材20の回転軸に垂直な平面である。
<Outline of configuration of developer storage unit>
Next, the configuration of the developer storage unit 25 will be described with reference to FIGS. 3, 4, 7 (a), and 20. Here, FIG. 3 is a perspective view from a cross section of the developer storage container 30, FIG. 4 is a cross-sectional view of the developing device 38, and FIG. 7 is a vicinity of a discharge unit 35 for discharging the developer of the developer bag 16 which is a flexible container. 20 is a perspective view from the cross section of the developer storage container 26. The cross-sectional view is a plane passing through the opening member 20, the opening 35a, and the fixing portions 16d and 16e. The cross-sectional view is a plane perpendicular to the rotation axis of the opening member 20.

(現像剤収納ユニット)
現像剤収納ユニット25は図4に示すように現像剤収納容器30、現像ローラ13、現像ブレード15と、これらを支持する第一の枠体17と第二の枠体18から構成される。第一の枠体と第二の枠体を合わせたものが現像剤収納容器30を収納する枠体である。
(Developer storage unit)
As shown in FIG. 4, the developer storage unit 25 includes a developer storage container 30, a developing roller 13, a developing blade 15, and a first frame 17 and a second frame 18 that support them. The combination of the first frame and the second frame is the frame for storing the developer storage container 30.

なお本実施例では現像剤収納ユニット25は現像装置38と同じである。これは現像剤収納ユニット25が現像ローラ13、現像ブレード15を有しているからである。しかし現像剤収納ユニット25と別枠体で現像ローラ13と現像ブレード15を支持し、現像剤収納ユニット25と分離してもよい。この場合現像装置38は現像剤収納ユニット25と現像ローラ13、現像ブレード15で構成されたものとなる。(不図示) In this embodiment, the developer storage unit 25 is the same as the developing device 38. This is because the developer storage unit 25 has a developing roller 13 and a developing blade 15. However, the developing roller 13 and the developing blade 15 may be supported by a separate frame from the developing agent storage unit 25 and separated from the developing agent storage unit 25. In this case, the developing device 38 is composed of a developing agent storage unit 25, a developing roller 13, and a developing blade 15. (Not shown)

(開封部材を有した現像剤収納容器)
開封部材を有した現像剤収納容器30は、図3、図4に示すように、開封部材20と現像剤収納容器26から構成される。
(Developer storage container with opening member)
As shown in FIGS. 3 and 4, the developer storage container 30 having the opening member is composed of the opening member 20 and the developing agent storage container 26.

開封部材20は封止部材19と係合する係合部20bを有しており、現像剤収納容器26の被係合部19bと係合部20bを係合することにより開封部材を有した現像剤収納容器30となる。 The opening member 20 has an engaging portion 20b that engages with the sealing member 19, and the developing having the opening member is provided by engaging the engaged portion 19b and the engaging portion 20b of the developer storage container 26. It becomes the agent storage container 30.

(現像剤を収納した現像剤収納容器)
図30(c)に示すように現像剤収納容器26は、現像剤と、現像剤袋16と、封止部材19から構成される。ここで現像剤は粉体である。
(Developer storage container containing the developer)
As shown in FIG. 30 (c), the developer storage container 26 is composed of a developer, a developer bag 16, and a sealing member 19. Here, the developer is a powder.

現像剤収納容器26の現像剤袋16は、現像剤を排出する複数の開口部35aを封止部材19で封止し、現像剤を入れる為の注入口39を封止した接合部39aを有している。このように現像剤を収納した現像剤収納容器26のそれぞれの開口部35a、注入口39は封止されているため収納した現像剤を外に漏れず一つのユニットとして扱うことが可能である。また封止部材19には開封部材20に係合する被係合部19bである穴が設けられており、開封部材20に係合可能となっている。 The developer bag 16 of the developer storage container 26 has a joint portion 39a in which a plurality of openings 35a for discharging the developer are sealed by a sealing member 19 and an injection port 39 for containing the developer is sealed. doing. Since the openings 35a and the injection port 39 of the developer storage container 26 containing the developer are sealed in this way, the stored developer can be treated as one unit without leaking to the outside. Further, the sealing member 19 is provided with a hole which is an engaged portion 19b that engages with the opening member 20, so that the sealing member 19 can be engaged with the opening member 20.

(現像剤を収納するための現像剤収納容器)
図30(a)に示すように現像剤を収納するための現像剤収納容器37は、現像剤袋16と、現像剤を排出する為の複数の開口部35aを封止するとともに移動されることによって開口部35aを露出する封止部材19から構成される。ここで現像剤を収納するための現像剤収納容器37の現像剤袋16は、現像剤を入れる為の注入口39と現像剤を排出するための開口部35aを有している。
(Developer storage container for storing the developer)
As shown in FIG. 30A, the developer storage container 37 for storing the developer is moved while sealing the developer bag 16 and the plurality of openings 35a for discharging the developer. It is composed of a sealing member 19 that exposes the opening 35a. Here, the developer bag 16 of the developer storage container 37 for storing the developer has an injection port 39 for containing the developer and an opening 35a for discharging the developer.

ここで現像剤を収納するための現像剤収納容器37はまだ現像剤を充填しておらず、現像剤を入れる為の注入口39が開口した状態である。 Here, the developer storage container 37 for storing the developer is not yet filled with the developer, and the injection port 39 for containing the developer is open.

(充填と現像剤収納容器)
ここで現像剤を収納するための現像剤収納容器37と現像剤を収納した現像剤収納容器26の関係について述べる。
(Filling and developer storage container)
Here, the relationship between the developer storage container 37 for storing the developer and the developer storage container 26 for storing the developer will be described.

まず図30(a)に示すように現像剤を収納するための現像剤収納容器37には現像剤が充填されておらず現像剤を入れる為の注入口39がある。 First, as shown in FIG. 30A, the developer storage container 37 for storing the developer is not filled with the developer and has an injection port 39 for containing the developer.

次に図30(b)で示すように現像剤を収納するための現像剤収納容器37の現像剤を入れる為の注入口39から現像剤を充填する。また現像剤袋16の可撓性により入れる為の注入口39は充填装置に合わせて変形可能であり現像剤の飛散なく充填が容易になる。充填に際しては、公知のオーガー式充填装置を使用して行うが、同様の機能を有する他の方法を用いてもかまわない。 Next, as shown in FIG. 30B, the developer is filled from the injection port 39 for containing the developer in the developer storage container 37 for storing the developer. Further, due to the flexibility of the developer bag 16, the injection port 39 for inserting the developer bag 16 can be deformed according to the filling device, so that the developer can be easily filled without scattering. Filling is performed using a known auger type filling device, but other methods having similar functions may be used.

次に図30(c)で示すように現像剤を入れる為の注入口39を接合し封止する。現像剤を入れる為の開口部の接合部39aの接合は、本実施例では超音波で接合しているが他に熱やレーザーなどで接合してもよい。 Next, as shown in FIG. 30 (c), the injection port 39 for containing the developer is joined and sealed. In this embodiment, the joining portion 39a of the opening for containing the developing agent is joined by ultrasonic waves, but may be joined by heat or a laser.

そして充填する為の開口部の接合部39aの接合が完了すると現像剤は封入され現像剤を収納した現像剤収納容器26となるのである。 When the joining of the joint portion 39a of the opening for filling is completed, the developer is sealed and the developer storage container 26 containing the developer is formed.

なお充填する為の注入口39の位置や大きさは現像剤の充填装置やプロセスカートリッジAの形状等に合わせて適宜配置すればよい。 The position and size of the injection port 39 for filling may be appropriately arranged according to the shape of the developing agent filling device, the process cartridge A, and the like.

(現像装置内に現像剤袋を有する効果)
現像剤を収納した現像剤収納容器26が袋形態をとることにより現像剤をユニットとして扱える。そのため現像剤充填工程をプロセスカートリッジAのメインの組立工程(製造ライン)から分離できる。これによりプロセスカートリッジAのメインの組み立て工程(製造ライン)に現像剤が飛散することがなくなり製造ラインの清掃などのメンテナンスを削減することができる。組立工程時に現像剤の飛散がなくなることにより現像剤を充填した後のプロセスカートリッジAの清掃工程を省くことができる。
(Effect of having a developer bag in the developing device)
The developer can be handled as a unit by taking the form of a bag for the developer storage container 26 containing the developer. Therefore, the developer filling process can be separated from the main assembly process (manufacturing line) of the process cartridge A. As a result, the developer does not scatter in the main assembly process (manufacturing line) of the process cartridge A, and maintenance such as cleaning of the manufacturing line can be reduced. Since the developer is not scattered during the assembly process, the cleaning step of the process cartridge A after the developer is filled can be omitted.

また現像剤袋16の充填工程においても現像剤袋16は可撓性を有しており充填のための注入口39も柔らかいため飛散少なく容易に封止できる。 Further, also in the filling step of the developing agent bag 16, the developing agent bag 16 has flexibility and the injection port 39 for filling is also soft, so that it can be easily sealed with less scattering.

また現像剤を収納した現像剤収納容器26は可撓性を有しているため枠体の形状に倣わせて組むことができる。 Further, since the developer storage container 26 containing the developer has flexibility, it can be assembled according to the shape of the frame.

また充填工程において現像剤収納容器37は可撓性を有するため断面を変形させて容積を増やして充填することができるので充填時には充填量を増やすことができる。 Further, since the developer storage container 37 has flexibility in the filling step, the cross section can be deformed to increase the volume for filling, so that the filling amount can be increased at the time of filling.

また現像剤充填前の現像剤収納容器37は可撓性を有しているため小さく(薄く)することができて、樹脂の構造体である枠体に比べ充填前の保管時の保管スペースを小さくすることができる。 Further, since the developer storage container 37 before filling with the developer has flexibility, it can be made smaller (thinner), and the storage space during storage before filling can be increased as compared with the frame body which is a resin structure. It can be made smaller.

<現像剤袋の構成>
図3、図4に示すように現像剤袋16は内部に現像剤を収納しており形状が変形可能な袋状のものであり、収納した現像剤を排出するために排出部35に複数の開口部35aを備えている。
<Structure of developer bag>
As shown in FIGS. 3 and 4, the developer bag 16 is a bag-like bag in which the developer is stored and the shape can be deformed, and a plurality of developer bags 16 are stored in the discharge unit 35 in order to discharge the stored developer. It has an opening 35a.

また現像剤袋16は第一の枠体17、第二の枠体18枠体に固定されている現像剤袋固定部(被固定部)16d、16eを有している。 Further, the developer bag 16 has developer bag fixing portions (fixed portions) 16d and 16e fixed to the first frame body 17 and the second frame body 18.

(現像剤袋の素材、通気性)
図29は現像剤収納容器26の断面説明図である。図29(a)で示すように現像剤袋16は排出部35を有し通気性を有さないシート16uと、通気部となる通気性を有するシート16sを貼り合わせて現像剤袋16は構成されている。
(Material of developer bag, breathability)
FIG. 29 is a cross-sectional explanatory view of the developer storage container 26. As shown in FIG. 29 (a), the developer bag 16 is formed by laminating a sheet 16u having a discharge portion 35 and having no breathability and a sheet 16s having a breathability as a breathable portion. Has been done.

ここで通気部16sの通気度は収納する現像剤の大きさ(粉体の粒径)との兼ね合いで現像剤が現像剤袋16の外に漏れないものを適宜選定すれば良い。 Here, the air permeability of the venting portion 16s may be appropriately selected so that the developer does not leak out of the developer bag 16 in consideration of the size of the developer to be stored (particle size of the powder).

通気部16sの素材としてポリエチレンテレフタレート(PET)、ポリエチレン(PE)、ポリプロピレン(PP)等で、厚さは0.03〜0.15mmの不織布などが好ましい。また通気部16sの素材が不織布ではなくても現像剤袋16に収納する現像剤等の粉体よりも微細な穴が開いているものでも良い。 The material of the ventilation portion 16s is preferably polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP) or the like, and a non-woven fabric having a thickness of 0.03 to 0.15 mm is preferable. Further, even if the material of the ventilation portion 16s is not a non-woven fabric, it may have holes finer than powder such as a developer stored in the developer bag 16.

また通気部16sの配置は本実施例では図3、図29に示すように第二の枠体18側に現像剤袋16の長手方向全域にわたり通気部16sを配している。なお図29(b)に示すように通気部16sは現像剤袋16全体を16sで構成してもよい。 Further, in this embodiment, as shown in FIGS. 3 and 29, the ventilation portion 16s is arranged on the second frame 18 side over the entire length direction of the developer bag 16. As shown in FIG. 29 (b), the entire developing agent bag 16 may be composed of 16s in the ventilation portion 16s.

なお通気部16s以外の現像剤袋16の素材としては後述する現像剤排出時の効率を良くするように可撓性を有するものが好ましい。また通気部16sの素材に可撓性をもたせても良い。 As the material of the developer bag 16 other than the ventilation portion 16s, a material having flexibility is preferable so as to improve the efficiency at the time of discharging the developer, which will be described later. Further, the material of the ventilation portion 16s may be made flexible.

(現像剤袋が通気性を有する効果)
このように現像剤袋16に通気性をもたせる理由としては、製造時、ユーザーがカートリッジAを使用するまでの物流時、および保管時に対応する為である。
(Effect of the developer bag having breathability)
The reason why the developer bag 16 is made breathable in this way is that it can be used during manufacturing, distribution until the user uses the cartridge A, and storage.

まず製造時の理由としては、現像剤袋16を枠体17、18に組み込み易いように現像剤袋16を変形、縮小可能とする為である。現像剤袋16に通気部16sが無い場合は現像剤袋16に現像剤を充填した状態(袋を閉じた状態)の大きさから変えられず、そのため変形もさせにくい。そのため組立に時間を要したり、工程が複雑化する。そこで現像剤袋16の少なくとも一部に通気性を持たせると現像剤袋16に現像剤を充填して袋を閉じた状態の大きさから変える事が可能となり組み立てしやすくなる。 First, the reason for manufacturing is that the developer bag 16 can be deformed and reduced so that the developer bag 16 can be easily incorporated into the frames 17 and 18. When the developer bag 16 does not have the ventilation portion 16s, the size cannot be changed from the size of the developer bag 16 filled with the developer (the bag is closed), and therefore it is difficult to deform. Therefore, it takes time to assemble and the process becomes complicated. Therefore, if at least a part of the developer bag 16 is made breathable, the developer bag 16 can be filled with the developer and the size of the bag can be changed from the closed size, which facilitates assembly.

次に物流時および保管時の理由としては、プロセスカートリッジAの輸送時および保管時に異なる気圧の変化に対応するためである。物流などで製造時より低い気圧環境下となる場合や、製造時より高い温度となる保管される場合などにより現像剤袋16内外の気圧差が発生する。そのため現像剤袋16が膨張することで現像剤袋16と接する各部品が変型や破損の恐れがある。そのための物流時や保管時に気圧や温度の管理が必要となり設備、コストがかかる。しかし一部に通気性を持たせることにより気圧による現像剤袋16内外の気圧差による問題を解消できるのである。 Next, the reason for distribution and storage is to cope with different changes in atmospheric pressure during transportation and storage of the process cartridge A. A pressure difference between the inside and outside of the developer bag 16 occurs when the pressure environment is lower than that at the time of manufacture due to physical distribution or when the temperature is higher than that at the time of manufacture. Therefore, as the developer bag 16 expands, each part in contact with the developer bag 16 may be deformed or damaged. Therefore, it is necessary to control the atmospheric pressure and temperature during distribution and storage, which requires equipment and cost. However, it is possible to solve the problem due to the pressure difference between the inside and outside of the developer bag 16 due to the atmospheric pressure by providing a part with air permeability.

また通気性を有する不織布に排出部35、排出部35周囲の接合部22を設けた場合は、開封時に封止部材19の剥離に伴い不織布の繊維がとれて現像剤の中に入り画像に悪影響を与える恐れがある。そのため通気性を有するシート16sとは異なるシート16uに排出部35を設けることにより前述のような不織布の繊維が抜け落ちる事がなくなる。 Further, when the discharge portion 35 and the joint portion 22 around the discharge portion 35 are provided on the breathable non-woven fabric, the fibers of the non-woven fabric are removed due to the peeling of the sealing member 19 at the time of opening and enter the developer, which adversely affects the image. May give. Therefore, by providing the discharge portion 35 on the sheet 16u different from the breathable sheet 16s, the fibers of the non-woven fabric as described above will not come off.

また通気部16sから脱気しながら現像剤を充填することにより充填密度を上げることができる。 Further, the packing density can be increased by filling the developer while degassing from the ventilation portion 16s.

(現像剤袋の排出部構成)
図3、図10に示す様に現像剤袋16は内部の現像剤を排出するための複数の開口部35a、および複数の開口部35aを定義する連結部35bからなる現像剤排出部35を有している。そして封止部材19により、排出部35の周囲を接合部22で連続して取り囲み開封可能に接合し現像剤袋16に収納する現像剤を封止している。
(Composition of discharge part of developer bag)
As shown in FIGS. 3 and 10, the developer bag 16 has a developer discharge portion 35 including a plurality of openings 35a for discharging the developer inside and a connecting portion 35b defining the plurality of openings 35a. doing. Then, the sealing member 19 continuously surrounds the periphery of the discharging portion 35 with the joining portion 22, joins the discharge portion 35 so as to be openable, and seals the developer to be stored in the developer bag 16.

(現像剤袋の接合部構成)
接合部22は長い方向(方向F)に2本、短い方向(方向E)に2本とで囲んだ「ロの字」形状で連続しているため排出部35の封止を可能としている。
(Construction of joint part of developer bag)
Since the joint portion 22 is continuous in a "square" shape surrounded by two in the long direction (direction F) and two in the short direction (direction E), the discharge portion 35 can be sealed.

ここで長い方向(方向F)に溶着された2本の接合部のうち先に開封されるものを第一の接合部22a、後に開封されるものを第二の接合部22bとする。本実施形態では、封止部材19の表面に沿ってみた場合に、後述する返し部19d(又は被係合部19b)に近い側の接合部を第一の接合部22aである。また、開口部を挟んで第一の接合部22aに対向する接合部が第二の接合部22bである。また短い方向の接合部を短手接合部22cとする。 Here, of the two joints welded in the long direction (direction F), the one that is opened first is referred to as the first joint 22a, and the one that is opened later is referred to as the second joint 22b. In the present embodiment, when viewed along the surface of the sealing member 19, the joint portion on the side closer to the return portion 19d (or the engaged portion 19b) described later is the first joint portion 22a. Further, the joint portion facing the first joint portion 22a across the opening is the second joint portion 22b. Further, the joint portion in the short direction is referred to as the short joint portion 22c.

本実施例において開封方向は方向Eである。開封方向は次のように定義する。封止部材19を移動させて開封を行う場合に、開口部35aを挟んだ第一の接合部22aと第二の接合部22bとでは、第一の接合部22aが先に開封(剥離)される。このように、先に開封される第一の接合部22aから第二の接合部22bに向かう方向を開封方向Eとする。 In this embodiment, the opening direction is direction E. The opening direction is defined as follows. When the sealing member 19 is moved to open the seal, the first joint 22a is first opened (peeled) between the first joint 22a and the second joint 22b sandwiching the opening 35a. To. In this way, the direction from the first joint portion 22a to the second joint portion 22b to be opened first is defined as the opening direction E.

なお現像剤袋16から封止部材19をE方向に開封する時(剥離する時)に、微視的に見ると第一の接合部22aや第二の接合部22bの中においても開封力による現像剤袋16の変形により矢印F方向にも剥離が進む場合がある。しかしながら、本実施例における開封方向は、このような微視的な開封の方向を指すものではない。 When the sealing member 19 is opened from the developer bag 16 in the E direction (when peeled off), it is microscopically viewed even in the first joint portion 22a and the second joint portion 22b due to the opening force. Deformation of the developer bag 16 may cause peeling to proceed in the direction of arrow F as well. However, the opening direction in this embodiment does not indicate such a microscopic opening direction.

(現像剤袋の開口部の配置)
次に図10、図11、図30を用いて開口部35aの配置について説明する。開口部35aを封止するとともに移動されることによって開口部35aを露出する封止部材19の移動方向(開封部材20に引っ張られる方向)はDである。封止部材19の移動により開口部35aは開封方向Eの方向に露出が進む。以下封止部材19の移動方向をDとする。開封方向Eに対して垂直な方向Fにずれて複数の開口部35aおよび連結部35bを配置している。また封止部材19は、開封部材20を回転させて巻きとる構成としているが、前記の方向Fは開封部材20の回転軸の軸線と同じ方向である。
(Arrangement of openings in the developer bag)
Next, the arrangement of the opening 35a will be described with reference to FIGS. 10, 11, and 30. The moving direction (direction pulled by the opening member 20) of the sealing member 19 that exposes the opening 35a by being moved while sealing the opening 35a is D. Due to the movement of the sealing member 19, the opening 35a is exposed in the opening direction E. Hereinafter, the moving direction of the sealing member 19 is defined as D. A plurality of openings 35a and connecting portions 35b are arranged so as to be offset in a direction F perpendicular to the opening direction E. Further, the sealing member 19 is configured to rotate and wind the opening member 20, but the above-mentioned direction F is the same direction as the axis of the rotation axis of the opening member 20.

ここで現像ローラ13の回転軸方向と複数の開口部35aの並ぶ方向Fを揃えるのは、現像剤を排出時に現像ローラ13の長手方向全体に現像剤が偏りなく供給され易くするためである。 Here, the direction F of the rotation axis of the developing roller 13 and the direction F in which the plurality of openings 35a are lined up are aligned so that the developing agent can be easily supplied evenly to the entire longitudinal direction of the developing roller 13 when the developing agent is discharged.

ここで複数の開口部35aはFの方向にずれて配置されているため排出部35は方向Fに長く、方向Eに短いものとなる。つまり方向Fにおける複数の開口部35aの端から端までの距離は、方向Eにおける開口部35aの端から端までの長さより長い。 Here, since the plurality of openings 35a are arranged so as to be offset in the direction F, the discharge portion 35 is long in the direction F and short in the direction E. That is, the distance from one end to the other of the plurality of openings 35a in the direction F is longer than the length from one end to the other of the openings 35a in the direction E.

このように開封方向Eに対して垂直な方向Fにずれて複数の開口部35aを配置している排出部35は方向Fに長く方向Eに短いものとなるため開封に要する距離が、長い方向Fに開封するより短くてすむため開封に要る時間も短くできる。 In this way, the discharge portion 35 in which the plurality of openings 35a are arranged so as to be offset in the direction F perpendicular to the opening direction E is long in the direction F and short in the direction E, so that the distance required for opening is long. Since it is shorter than opening in F, the time required for opening can be shortened.

また排出部35を覆う封止部材19を開封部材20で巻きとる構成としている。開封部材20の回転軸方向と開封方向Eに対して略垂直な方向Fは同じ方向とすることで、封止部材19の巻きとり距離、時間を短くできる。 Further, the sealing member 19 covering the discharging portion 35 is wound by the opening member 20. By setting the rotation axis direction of the opening member 20 and the direction F substantially perpendicular to the opening direction E to be the same direction, the winding distance and time of the sealing member 19 can be shortened.

(現像剤袋の開口部の形状、方向)
実施例1の複数の開口部35aはそれぞれ丸形状である。排出性を考慮すると開口部35aの面積は大きい方が良い。また開口部を定義する連結部35bは、現像剤袋16の強度を高めるため大きい(太い)方が良い。よって開口部35aの面積と連結部35bの面積は、排出部35の材質、厚み、また後述する開封時のピーリング強度との力関係等によりバランスをとる必要があり適宜選定すれば良い。また開口部35aの形状も丸以外に四角等の多角形や後述する第二の実施例の図18に示すような長丸等でもよい。
(Shape and direction of opening of developer bag)
Each of the plurality of openings 35a of the first embodiment has a round shape. Considering the discharge property, the area of the opening 35a should be large. Further, the connecting portion 35b that defines the opening should be large (thick) in order to increase the strength of the developer bag 16. Therefore, the area of the opening 35a and the area of the connecting portion 35b need to be balanced depending on the material and thickness of the discharging portion 35, the force relationship with the peeling strength at the time of opening, which will be described later, and may be appropriately selected. Further, the shape of the opening 35a may be a polygon such as a square or an oval as shown in FIG. 18 of the second embodiment described later, in addition to the circle.

なお開口部35aの配置は開封方向Eに対して垂直な方向Fに対してずれていれば良く、図28(c)に示すように開口部35aが開封方向Eに垂直な方向Fに重なっていても、図28(d)に示すように重なっていなくても後述する連結部35bの効果がある。 The arrangement of the opening 35a may be offset with respect to the direction F perpendicular to the opening direction E, and the opening 35a overlaps the direction F perpendicular to the opening direction E as shown in FIG. 28 (c). However, as shown in FIG. 28 (d), there is an effect of the connecting portion 35b described later even if they do not overlap.

また開口部35aの方向は画像形成時の姿勢で収納する現像剤を排出しやすいようになっているのが好ましい。そのため、画像形成時の姿勢において、開口部35aは、重力方向の下方向に開くように配置される。ここで、開口部35aが重力方向の下方向に開くとは、開口部35aの開口の向きが重力方向下方向の成分を持つことを指す。 Further, it is preferable that the direction of the opening 35a is such that the developer stored in the posture at the time of image formation can be easily discharged. Therefore, in the posture at the time of image formation, the opening 35a is arranged so as to open downward in the direction of gravity. Here, the fact that the opening 35a opens downward in the direction of gravity means that the direction of the opening of the opening 35a has a component in the downward direction in the direction of gravity.

(現像剤袋と枠体の固定)
図3、図4に示す様に現像剤袋16は二つの固定部16d、16eにより第一の枠体17、第二の枠体18の内部に固定される。
(Fixing the developer bag and frame)
As shown in FIGS. 3 and 4, the developer bag 16 is fixed to the inside of the first frame 17 and the second frame 18 by the two fixing portions 16d and 16e.

(第一の固定部)
まず一つ目の固定部として、後述する封止部材19を現像剤袋16から開封する時に力を受ける現像剤袋16の第一の固定部16dを設けている。複数の開口部35aが配置されている方向Fと平行に、固定部16dは複数個設けられている。なお固定部16dはこのように複数個設けられる以外に方向Fと平行に長いひとつのものでも良い。(不図示)また第一の固定部16dの位置は現像剤袋16の開口部35aの近傍に設けられている。
(First fixed part)
First, as the first fixing portion, a first fixing portion 16d of the developer bag 16 that receives a force when the sealing member 19 described later is opened from the developer bag 16 is provided. A plurality of fixing portions 16d are provided in parallel with the direction F in which the plurality of openings 35a are arranged. In addition to the plurality of fixed portions 16d being provided in this way, one fixed portion 16d may be long in parallel with the direction F. (Not shown) The position of the first fixing portion 16d is provided in the vicinity of the opening 35a of the developer bag 16.

また現像剤袋の第一の固定部16dは枠体の第一の固定部18aに固定されている。 Further, the first fixing portion 16d of the developer bag is fixed to the first fixing portion 18a of the frame body.

第一の固定部16dは現像剤袋16の開封時の為に必要な固定部所であり、その作用や配置に関しては開封の説明で後述する。 The first fixing portion 16d is a fixing portion necessary for opening the developer bag 16, and its operation and arrangement will be described later in the description of opening.

(第二の固定部)
また二つ目の固定部として、現像剤袋16が下方、もしくは現像ローラ13、現像剤供給ローラ23の方へ移動するのを防ぐため第二の固定部16eを設けている。
(Second fixed part)
Further, as the second fixing portion, a second fixing portion 16e is provided to prevent the developer bag 16 from moving downward or toward the developing roller 13 and the developing agent supply roller 23.

第二の固定部16eを設けているのは、2つの理由がある。第一の理由としては現像剤袋の第二の固定部16eが現像剤袋16を画像形成時の姿勢で下方に移動しないようにするためである。そのため第二の固定部16eは画像形成時の姿勢で上方に配置するのが好ましい。 There are two reasons why the second fixing portion 16e is provided. The first reason is that the second fixing portion 16e of the developer bag does not move the developer bag 16 downward in the posture at the time of image formation. Therefore, it is preferable that the second fixing portion 16e is arranged upward in the posture at the time of image formation.

また第二の理由としては、現像剤袋16が画像形成時に現像ローラ13や現像剤供給ローラ23に接触して画像を乱すことを防ぐためである。そのため現像ローラ13や現像剤供現像ローラ23から離れたところに現像剤袋16の第二の固定部16eを設ける事が好ましい。本実施例では現像剤袋の第二の固定部16eを図1に示すように現像ローラ13から離れた上方に配置している。
また現像剤袋の第二の固定部16eは枠体の第二の固定部18bに固定される。
The second reason is to prevent the developer bag 16 from coming into contact with the developing roller 13 and the developing agent supply roller 23 during image formation and disturbing the image. Therefore, it is preferable to provide the second fixing portion 16e of the developer bag 16 at a position away from the developing roller 13 and the developing agent developing roller 23. In this embodiment, the second fixing portion 16e of the developer bag is arranged above the developing roller 13 as shown in FIG.
Further, the second fixing portion 16e of the developer bag is fixed to the second fixing portion 18b of the frame body.

(現像剤袋と枠体の固定方法)
(第一の固定部の固定方法)
現像剤袋の第一の固定部16dの固定方法として、現像剤袋16の穴に、第二の枠体18のボスを通し、ボスをつぶす超音波カシメによる固定を用いている。図27(a)で示すように固定前には第二の枠体18の第一の固定部18aは円柱のボス形状をしており、現像剤袋16の第一の固定部16dは穴が開いている。そして組み立て工程を次に示す。
(How to fix the developer bag and frame)
(Fixing method of the first fixing part)
As a method of fixing the first fixing portion 16d of the developer bag, the boss of the second frame 18 is passed through the hole of the developer bag 16 and the boss is crushed by ultrasonic caulking. As shown in FIG. 27A, before fixing, the first fixing portion 18a of the second frame body 18 has a cylindrical boss shape, and the first fixing portion 16d of the developer bag 16 has a hole. is open. The assembly process is shown below.

まず第二の枠体18の第一の固定部18aの凸形状部に、現像剤袋16の第一の固定部16dの穴に通す(図27(b))。 First, the convex portion of the first fixing portion 18a of the second frame body 18 is passed through the hole of the first fixing portion 16d of the developer bag 16 (FIG. 27 (b)).

そして第二の枠体18の第一の固定部18aの先端を超音波カシメの工具34で溶かす((図27(c))。 Then, the tip of the first fixing portion 18a of the second frame body 18 is melted by the ultrasonic caulking tool 34 ((FIG. 27 (c)).

そして現像剤袋16の第一の固定部16dの穴より大きくなるように、第二の枠体18の第一の固定部18aの先端を変形させることで現像剤袋16を第二の枠体18に固定している(図27d)。 Then, the developer bag 16 is made into a second frame by deforming the tip of the first fixing portion 18a of the second frame 18 so as to be larger than the hole of the first fixing portion 16d of the developer bag 16. It is fixed at 18 (Fig. 27d).

(第二の固定部の固定方法)
図4に示すように現像剤袋の第二の固定部16eの固定方法は二つの枠体17、18による挟み込みを用いている。現像剤袋16に穴を開け現像剤袋の第二の固定部16eとし、第二の枠体18に凸部を設けて枠体の第二の固定部18bとする。
(Fixing method of the second fixing part)
As shown in FIG. 4, the method of fixing the second fixing portion 16e of the developer bag uses sandwiching by two frames 17 and 18. A hole is made in the developer bag 16 to form a second fixing portion 16e of the developing agent bag, and a convex portion is provided on the second frame body 18 to form a second fixing portion 18b of the frame body.

そして組み立て工程を次に示す。現像剤袋16の第一の固定部16dに第二の枠体18の固定部18bの凸部を通し、第一の枠体17で凸部から現像剤袋の第二の固定部16e(穴)が脱落しないような挟み込みによる固定をしている。 The assembly process is shown below. The convex portion of the fixing portion 18b of the second frame body 18 is passed through the first fixing portion 16d of the developer bag 16, and the second fixing portion 16e (hole) of the developer bag is passed from the convex portion of the first frame body 17. ) Is fixed by pinching so that it does not fall off.

(その他の固定手段)
固定の手段としては前述の超音波カシメの他に超音波以外のものも使用可能である。例えば、熱を用いた熱カシメや、現像剤袋と第一の枠体17や第二の枠体18に直接溶着する熱溶着や超音波溶着、また溶剤や接着剤を用いた接着、枠体間への挟み込み、熱カシメ、超音波カシメ、ねじ、穴と凸部(ボス等)による引っ掛け等でも良い。また第一、第二の枠体17、18と現像剤袋16のスペースや配置等の関係から適宜設計に応じて第一、第二の枠体17、18と現像剤袋の間に別部材を介して固定しても良い(不図示)。
(Other fixing means)
As the fixing means, other than ultrasonic waves can be used in addition to the above-mentioned ultrasonic caulking. For example, heat caulking using heat, heat welding or ultrasonic welding that directly welds the developer bag to the first frame 17 or the second frame 18, or bonding using a solvent or adhesive, the frame. It may be sandwiched between spaces, heat caulked, ultrasonic caulked, screws, hooked by holes and convex parts (bosses, etc.), and the like. Further, due to the space and arrangement of the first and second frames 17 and 18 and the developer bag 16, a separate member is provided between the first and second frames 17 and 18 and the developer bag according to the design. It may be fixed via (not shown).

<封止部材の構成>
図3、図4に示す様に、封止部材19は、プロセスカートリッジAの使用前に現像剤袋16の排出部35を覆い現像剤袋16内の現像剤を封止している。封止部材19は、移動されることによって前記開口部35aを露出させるものである。封止部材19の構成は、現像剤袋16の排出部35を覆う封止部19aと、後述する開封部材20と固定される被係合部19bと、封止部19aと被係合部19bを連結している封止部材連結部19cを有しているシート状のものである。当該シートは後述する易開封性を発揮するシーラント層を持つラミネート材で、基材はポリエチレンテレフタレート(PET)、ポリエチレン、ポリプロピレン等で、厚さは0.03〜0.15mmのものを適宜選定すれば良い。
<Structure of sealing member>
As shown in FIGS. 3 and 4, the sealing member 19 covers the discharging portion 35 of the developing agent bag 16 and seals the developing agent in the developing agent bag 16 before using the process cartridge A. The sealing member 19 exposes the opening 35a by being moved. The sealing member 19 is composed of a sealing portion 19a that covers the discharging portion 35 of the developer bag 16, an engaged portion 19b that is fixed to the opening member 20 described later, and a sealing portion 19a and the engaged portion 19b. It is a sheet-like material having a sealing member connecting portion 19c connecting the two. The sheet is a laminate material having a sealant layer that exhibits easy-opening properties, which will be described later. The base material is polyethylene terephthalate (PET), polyethylene, polypropylene, etc., and a thickness of 0.03 to 0.15 mm should be appropriately selected. Just do it.

(封止部材の封止部)
封止部19aは、封止部材19が、現像剤袋16の複数の開口部35aと、連結部35bを封止する領域を指している。封止部19aにより、プロセスカートリッジAの使用時前までは現像剤が現像剤袋16内部から漏れないようにしている。
(Sealing part of sealing member)
The sealing portion 19a refers to a region where the sealing member 19 seals the plurality of openings 35a of the developer bag 16 and the connecting portion 35b. The sealing portion 19a prevents the developer from leaking from the inside of the developer bag 16 until before the process cartridge A is used.

(封止部材の係合部)
封止部材19は、開封方向Eの一端側に自由端部を有しており、当該自由端部に封止部材を移動させるための開封部材に係合される被係合部19bが設けられる。被係合部19bには、封止部材を移動させて開口を露出させるための開封部材が係合される。開封部材は、画像形成装置本体Bからの駆動を受けて開封を自動的に行うようなものでもよい。または、ユーザーが開封部材を把持して移動させることで開封を行うようなものでもよい。本実施例では開封部材20は枠体に設けられた回転軸であり、開封部材20に係合された封止部材19が引っ張られる事で現像剤を収納した現像剤収納容器26は開封される。
(Engagement part of sealing member)
The sealing member 19 has a free end portion on one end side in the opening direction E, and an engaged portion 19b engaged with the opening member for moving the sealing member is provided at the free end portion. .. An opening member for moving the sealing member to expose the opening is engaged with the engaged portion 19b. The opening member may be one that automatically opens the opening by receiving a drive from the image forming apparatus main body B. Alternatively, the user may grasp and move the opening member to open the opening. In this embodiment, the opening member 20 is a rotating shaft provided on the frame body, and the developing agent storage container 26 containing the developing agent is opened by pulling the sealing member 19 engaged with the opening member 20. ..

(封止部材の封止部材連結部)
接合部22と封止部材係合部19bとの間を連結している部分が封止部材連結部19cである。封止部材連結部19cは開封部材20からの力を受けて接合部22を引き剥がすように力を伝達する部分である。
(Sealing member connecting part of sealing member)
The portion connecting the joint portion 22 and the sealing member engaging portion 19b is the sealing member connecting portion 19c. The sealing member connecting portion 19c is a portion that receives a force from the opening member 20 and transmits the force so as to peel off the joint portion 22.

(封止部材連結部の折り返し)
ここで図12を用いて開封される瞬間において第一の接合部22aと第二の接合部22bとで形成された面N1とする。そして面N1に対して垂直で且つ第一の接合部22aを通る面N2とする。ここで開封部材20は、第一の接合部22aを通る面N2よりも第二の接合部22b側に配置されている。言い換えると封止部材19は、シート状である封止部材19の表面に沿って見たときに、接合部22と開封部材20との被係合部19bとの間の部分(連結部19c)で折り返されている返し部19dを有しているのである。返し部19dは折り目がついていても、折り目が付いていなくても良い。ここで封止部材19の返しの角度Qは90度以下が好ましい。折り返し角度Qは、現像剤袋16の接合部22の面と封止部材19の引っ張られる方向Dに沿った面の挟角Qである。
(Folding of the sealing member connecting part)
Here, it is assumed that the surface N1 formed by the first joint portion 22a and the second joint portion 22b at the moment when the package is opened using FIG. Then, the surface N2 is perpendicular to the surface N1 and passes through the first joint portion 22a. Here, the opening member 20 is arranged on the second joint 22b side of the surface N2 passing through the first joint 22a. In other words, the sealing member 19 is a portion (connecting portion 19c) between the joined portion 22 and the engaged portion 19b between the opening member 20 when viewed along the surface of the sheet-shaped sealing member 19. It has a return portion 19d that is folded back at. The return portion 19d may or may not have a crease. Here, the return angle Q of the sealing member 19 is preferably 90 degrees or less. The folding angle Q is a sandwiching angle Q between the surface of the joint portion 22 of the developer bag 16 and the surface of the sealing member 19 along the pulling direction D.

(封止部材の固定)
また封止部材19と開封部材20の固定は、本実施例において、第一の固定部16dと同様の超音波カシメで固定している。超音波カシメ以外に第一の固定部16dおよび第二の固定部16eの固定の手段と同様に熱溶着、超音波溶着、接着、枠体間への挟み込み、穴と凸による引っ掛け等でも良い。
(Fixing of sealing member)
Further, the sealing member 19 and the opening member 20 are fixed by the same ultrasonic caulking as in the first fixing portion 16d in this embodiment. In addition to the ultrasonic caulking, heat welding, ultrasonic welding, adhesion, sandwiching between frames, hooking by holes and protrusions, etc. may be performed in the same manner as the means for fixing the first fixing portion 16d and the second fixing portion 16e.

(封止部材の易開封性を有する部分)
次に、接合部22の剥離力を所望の値にする方法について説明をする。本実施の形態では前記剥離力を所望の値(ここでは、トナー封止性を保てる範囲内でできるだけ小さい力)にするために、主に2つの方法をとっている。
(Part of the sealing member that has easy opening properties)
Next, a method of setting the peeling force of the joint portion 22 to a desired value will be described. In the present embodiment, two main methods are adopted in order to make the peeling force a desired value (here, a force as small as possible within a range in which the toner sealing property can be maintained).

1つ目は、封止部材19に易開封を可能とするシーラント層を持つラミネート材を適用している。そして現像剤袋16の素材には前記シーラント層と溶着可能で可撓性のあるシート材質(例えば、ポリエチレンやポリプロピレン)を適用することで該接合部において易開封を可能とする方法である。シーラント層の処方及び貼り合わせる材質の組み合わせを変えることにより剥離力を所望の条件に合わせて調整させることが可能である。本実施例においてはJIS−Z0238の密封軟包装袋の試験において剥離強さが3N/15mm程度のものを用いている。 First, a laminating material having a sealant layer that enables easy opening is applied to the sealing member 19. Then, by applying a flexible sheet material (for example, polyethylene or polypropylene) that can be welded to the sealant layer to the material of the developer bag 16, it is a method that enables easy opening at the joint portion. By changing the formulation of the sealant layer and the combination of the materials to be bonded, the peeling force can be adjusted according to a desired condition. In this example, a sealed flexible packaging bag of JIS-Z0238 having a peeling strength of about 3 N / 15 mm is used.

2つ目は、図4、7に示すように現像剤袋16の排出部35を開封が進む方向(図中矢印E)に対して折り返された状態にする方法である。例えば図4の状態で開封部材20を回転(図中矢印C)させ封止部材19を開封部材20で引っ張られる方向(図中矢印D)に引っ張る。このようにすることで、現像剤袋16と封止部材19は図12に示すような現像剤袋16の接合部22の面と封止部材19の引っ張られる方向Dに沿った面の挟角Qが90度以下の傾斜剥離位置関係になる。従来傾斜剥離にすることにより両者の引き剥がしに必要な剥離力を低減できることが知られている。従って、前述したように封止部材19を開封が進む方向(図中矢印E)に対して折り返された状態にすることで接合部22部分の封止部材19と現像剤袋16が傾斜剥離の位置関係となり前記剥離力を低減するように調整することができる。 The second method is to bring the discharge portion 35 of the developer bag 16 into a folded state in the direction in which the opening proceeds (arrow E in the figure) as shown in FIGS. 4 and 7. For example, in the state of FIG. 4, the opening member 20 is rotated (arrow C in the figure), and the sealing member 19 is pulled in the direction of being pulled by the opening member 20 (arrow D in the figure). By doing so, the developer bag 16 and the sealing member 19 have a sandwiching angle between the surface of the joint portion 22 of the developing agent bag 16 and the surface of the sealing member 19 along the pulling direction D as shown in FIG. The Q is 90 degrees or less in an inclined peeling positional relationship. Conventionally, it is known that the peeling force required for peeling both can be reduced by using inclined peeling. Therefore, as described above, by making the sealing member 19 folded back in the direction in which the opening proceeds (arrow E in the figure), the sealing member 19 of the joint portion 22 and the developer bag 16 are inclined and peeled off. It can be adjusted so as to have a positional relationship and reduce the peeling force.

<開封部材の構成>
開封部材20は封止部材19に力を与えて封止部材19を移動させ現像剤袋16から引き剥がす目的のものである。開封部材20は軸形状で両端を第二の枠体18に回転可能に支持されている支持部(不図示)と、封止部材19の被係合部19bを固定する係合部20bを有している。本実施例では開封部材20は四角い軸形状で、その四角い軸の一面に封止部材19の被係合部19bを係合部20bで係合している。
<Structure of opening member>
The opening member 20 is for the purpose of applying a force to the sealing member 19 to move the sealing member 19 and peel it off from the developer bag 16. The opening member 20 has a support portion (not shown) rotatably supported at both ends by the second frame body 18 in a shaft shape, and an engaging portion 20b for fixing the engaged portion 19b of the sealing member 19. doing. In this embodiment, the opening member 20 has a square shaft shape, and the engaged portion 19b of the sealing member 19 is engaged with the engaging portion 20b on one surface of the square shaft.

(開封部材、押圧部材、攪拌部材の兼用)
また現像剤袋16の外部から作用し現像剤袋16内部の現像剤を排出させる押圧部材21と、開封部材20はそれぞれ別の部材で行っても良いが、本実施例では開封部材20と押圧部材21を同じ部品で機能させている。
(Combined use of opening member, pressing member, and stirring member)
Further, the pressing member 21 that acts from the outside of the developing agent bag 16 to discharge the developing agent inside the developing agent bag 16 and the opening member 20 may be different members, but in this embodiment, the opening member 20 and the pressing member 20 are pressed. The member 21 is made to function with the same parts.

また現像剤袋16から排出された現像剤を攪拌する機能と、開封部材20の機能をそれぞれ別の部品で行っても良いが本実地例では開封部材20に攪拌の機能を同じ部品で機能させている。 Further, the function of stirring the developer discharged from the developer bag 16 and the function of the opening member 20 may be performed by different parts, but in this practical example, the opening member 20 is made to function as the stirring function by the same parts. ing.

(開封部材、押圧部材、攪拌部材兼用の効果)
このように開封部材20、押圧部材21、攪拌部材を兼用することで部品点数の削減によるコストダウン、省スペース化が可能となる。
(Effect of opening member, pressing member, stirring member)
By using the opening member 20, the pressing member 21, and the stirring member in combination in this way, it is possible to reduce the number of parts, reduce costs, and save space.

<現像剤収納袋の開封概要>
次に現像剤収納袋16の開封について図7、図8を用いて述べる。
開封のため開封部材20が封止部材19を引っ張る力を与える力点部20aと、引っ張られる現像剤袋16を固定する枠体の固定部18aを現像装置38は有している。
<Outline of opening the developer storage bag>
Next, the opening of the developer storage bag 16 will be described with reference to FIGS. 7 and 8.
The developing device 38 has a force point portion 20a that gives a force for the opening member 20 to pull the sealing member 19 for opening, and a fixing portion 18a of a frame body that fixes the developer bag 16 to be pulled.

力点部20aとは開封の瞬間に封止部材19と開封部材20の接している部分の最も接合部22に近い部分である。図7(b)では開封部材20の角部20cが力点部20aである。また第二の枠体18の固定部18aは開封時の力による現像剤袋16の移動を抑制する固定部18cを有している。また接合部22から本実施例では枠体の第一の固定部18aと現像剤袋の第一の固定部16dは超音波カシメにより接合されており、図7(b)(c)、図8(a)で示す様に第一の固定部18aの超音波カシメ部分のうち接合部22に近い部分が固定部18cとなる。 The force point portion 20a is a portion closest to the joint portion 22 in the portion where the sealing member 19 and the opening member 20 are in contact with each other at the moment of opening. In FIG. 7B, the corner portion 20c of the opening member 20 is the force point portion 20a. Further, the fixing portion 18a of the second frame body 18 has a fixing portion 18c that suppresses the movement of the developer bag 16 due to the force at the time of opening. Further, from the joint portion 22, in this embodiment, the first fixing portion 18a of the frame body and the first fixing portion 16d of the developer bag are joined by ultrasonic caulking, and FIGS. 7 (b) (c) and 8 As shown in (a), the portion of the ultrasonic caulking portion of the first fixing portion 18a that is close to the joint portion 22 is the fixing portion 18c.

次に図53を用いて開封部材20の駆動伝達について述べる。図53は開封部材20への駆動伝達を示す概略説明図である。なお図53では封止部材19や現像剤袋16等は省略している。まず開封部材20は両端を第一の枠体17に回転自在に支持されている。そして開封部材20の片側端部にはギア54が結合されている。またカートリッジAにはギア(52、53)が配置されている。そしてギア52は画像形成装置Bから駆動を受けるカップリング部52aを有している。 Next, the drive transmission of the opening member 20 will be described with reference to FIG. 53. FIG. 53 is a schematic explanatory view showing drive transmission to the opening member 20. In FIG. 53, the sealing member 19, the developer bag 16, and the like are omitted. First, both ends of the opening member 20 are rotatably supported by the first frame body 17. A gear 54 is coupled to one end of the opening member 20. Further, gears (52, 53) are arranged on the cartridge A. The gear 52 has a coupling portion 52a that receives a drive from the image forming apparatus B.

画像形成装置Bには駆動手段51が設けられており、駆動手段51の先端にカートリッジAに駆動を伝達するカップリング51aを有している。 The image forming apparatus B is provided with the driving means 51, and the tip of the driving means 51 has a coupling 51a for transmitting the driving to the cartridge A.

図53(a)で示す矢印方向にカートリッジAが画像形成装置B本体内へ装着される。次に図53(b)で示す矢印方向に駆動手段51が移動し、駆動手段51のカップリング部51aとギア52のカップリング52aが係合する。そして図53(c)で示すように画像形成装置Bの駆動手段51よりカートリッジAのギア52、ギア53、ギア54と駆動が伝わり開封部材20が回転する。なお画像形成装置BからカートリッジAへの駆動伝達は凹凸によるカップリングに限らずギアによる係合等、駆動伝達ができる手段を用いればよい。 The cartridge A is mounted in the image forming apparatus B main body in the direction of the arrow shown in FIG. 53 (a). Next, the drive means 51 moves in the direction of the arrow shown in FIG. 53B, and the coupling portion 51a of the drive means 51 and the coupling 52a of the gear 52 are engaged with each other. Then, as shown in FIG. 53 (c), the drive is transmitted from the drive means 51 of the image forming apparatus B to the gear 52, the gear 53, and the gear 54 of the cartridge A, and the opening member 20 rotates. The drive transmission from the image forming apparatus B to the cartridge A is not limited to coupling due to unevenness, and a means capable of drive transmission such as engagement by gears may be used.

そして図4で示すように開封部材20は駆動力が伝達され矢印Cの方向に回転する。 Then, as shown in FIG. 4, the opening member 20 is transmitted with a driving force and rotates in the direction of the arrow C.

そして開封部材20の回転が進むことで封止部材19が引っ張られて第一の接合部22aの開封が始まる直前の状態を図5、図7(b)示す。回転に伴い開封部材20に被係合部19bで固定された封止部材19は四角い開封部材20の角部20c(力点部20a)により矢印Dの方向に引っ張られる。 5 and 7 (b) show a state immediately before the sealing member 19 is pulled by the rotation of the opening member 20 and the opening of the first joint portion 22a is started. The sealing member 19 fixed to the opening member 20 by the engaged portion 19b with rotation is pulled in the direction of the arrow D by the corner portion 20c (power point portion 20a) of the square opening member 20.

封止部材19が引っ張られると接合部22を介して現像剤袋16が引っ張られる。すると現像剤袋16は第一の固定部16dに力が加わり固定部18cによって固定部18cから力点部20aに向けて現像剤袋16は引っ張られる。すると開封部材20の回転軸に垂直な断面において、第一の接合部22aは力部20aと固定部18cを結んだ線上に近づくように動く。このとき、矢印Dの方向において、開封部材20の回転軸に近い方から、開口部35a、第一の接合部22a、返し部19d、固定部18cの順に配置されている(図7(b))。そして封止部材19が第一の接合部22aと被係合部19bの間で折り返されているため第一の接合部22aの部分に矢印Dの方向に傾斜剥離するように力がかかる。そして第一の接合部22aの剥離が行われて排出部35の開封が始まる。 When the sealing member 19 is pulled, the developer bag 16 is pulled through the joint portion 22. Then, a force is applied to the first fixing portion 16d of the developing agent bag 16, and the fixing portion 18c pulls the developing agent bag 16 from the fixing portion 18c toward the force point portion 20a. Then, in the cross section perpendicular to the rotation axis of the opening member 20, the first joint portion 22a moves so as to approach the line connecting the force portion 20a and the fixing portion 18c. At this time, in the direction of arrow D, the opening 35a, the first joint 22a, the return portion 19d, and the fixing portion 18c are arranged in this order from the side closer to the rotation axis of the opening member 20 (FIG. 7B). ). Then, since the sealing member 19 is folded back between the first joint portion 22a and the engaged portion 19b, a force is applied to the portion of the first joint portion 22a so as to be inclined and peeled off in the direction of the arrow D. Then, the first joint portion 22a is peeled off, and the discharge portion 35 is opened.

また角部20cと共に力点部20aも矢印Cの方向に移動し、角部20dと封止部材19が接すると角部20cから角部20dへ力点部は移動する。ここで図7(b)が力点部20aが角部(c)の状態を示し、図7(c)が更に開封部材20の回転が進み角部20dへ力点部が移った状態を示す。 Further, the force point portion 20a moves in the direction of the arrow C together with the corner portion 20c, and when the corner portion 20d and the sealing member 19 come into contact with each other, the force point portion moves from the corner portion 20c to the corner portion 20d. Here, FIG. 7B shows a state in which the force point portion 20a is a corner portion (c), and FIG. 7C shows a state in which the opening member 20 further rotates and the force point portion moves to the corner portion 20d.

図6、図7(c)に示すように開封部材20の回転が進むに連れて開封が進むと共に返し部19dも矢印E方向に進む。そして更に開封が進み開口部35aが露出する。開口部35aが露出した後に第二の接合部22bの剥離に入る状態を図8(a)に示す。この時も第一の接合部22aの剥離と同様に封止部材19は力点部20aの方へ引っ張り、現像剤袋16は固定部18cの方向(矢印H)に踏ん張ろうとする。すると開封部材20の回転軸に垂直な断面において、第二の接合部22bは力部20aと固定部18cを結んだ線上に近づくように動く。そして第二の接合部22bの部分に矢印Dの方向の力がかかり第二の接合部が剥離する。そして第二の接合部22bが剥がされて開封が完了する(図8(b)、図9)。そして現像剤袋16内部の現像剤が排出部35の開口部35aを通り矢印Iの方向に排出される。 As shown in FIGS. 6 and 7 (c), as the opening member 20 rotates, the opening proceeds and the return portion 19d also advances in the direction of arrow E. Then, the opening is further advanced and the opening 35a is exposed. FIG. 8A shows a state in which the second joint portion 22b is peeled off after the opening portion 35a is exposed. At this time as well, the sealing member 19 is pulled toward the emphasis point portion 20a and the developer bag 16 is pulled in the direction of the fixing portion 18c (arrow H) in the same manner as the peeling of the first joint portion 22a. Then, in the cross section perpendicular to the rotation axis of the opening member 20, the second joint portion 22b moves so as to approach the line connecting the force portion 20a and the fixing portion 18c. Then, a force in the direction of arrow D is applied to the portion of the second joint portion 22b, and the second joint portion is peeled off. Then, the second joint portion 22b is peeled off to complete the opening (FIGS. 8 (b) and 9). Then, the developing agent inside the developing agent bag 16 passes through the opening 35a of the discharging portion 35 and is discharged in the direction of the arrow I.

このように開封部材20の回転により封止部材19が開封部材20に巻きとられて接合部22を開封するのである。封止部材19は回転で巻き取られるため開封部材20の移動に要するスペースは開封部材20の回転スペースがあれば良く、回転以外の移動により封止部材19を移動させる場合に比べ省スペース化する事が出来る。
また開封部材20をユーザーが回転させて封止部材19を巻き取って開口部35aを露出させても良い。しかし画像形成装置Bからの駆動により開封部材20の回転させて封止部材19を巻き取る方がユーザーの手を煩わせず、より好ましい。
In this way, the rotation of the opening member 20 causes the sealing member 19 to be wound around the opening member 20 to open the joint portion 22. Since the sealing member 19 is wound by rotation, the space required for moving the opening member 20 may be a rotation space for the opening member 20, which saves space as compared with the case where the sealing member 19 is moved by a movement other than rotation. You can do things.
Further, the user may rotate the opening member 20 to wind up the sealing member 19 to expose the opening 35a. However, it is more preferable that the opening member 20 is rotated by driving from the image forming apparatus B to wind up the sealing member 19 without bothering the user.

また封止部材19が返し部19dを設けられていることで接合部22をせん断剥離せずに傾斜剥離とすることができ確実に開封できる。 Further, since the sealing member 19 is provided with the return portion 19d, the joint portion 22 can be subjected to inclined peeling without shear peeling, and the sealing can be reliably opened.

また複数の開口部35aが並んでいる方向Fと略垂直方向の封止部材19の一端側に封止部材19を開封するための開封部材20に係合される被係合部(19b)が設けられることで確実に封止部材19を係合して開封することができる。 Further, an engaged portion (19b) engaged with the opening member 20 for opening the sealing member 19 is provided on one end side of the sealing member 19 in a direction substantially perpendicular to the direction F in which the plurality of openings 35a are arranged. By being provided, the sealing member 19 can be reliably engaged and opened.

また枠体に固定部18cを設けて、現像剤袋16を開封時に支持する事により柔らかく変形可能な現像袋16でも確実に開封可能となる。 Further, by providing the fixing portion 18c on the frame body and supporting the developer bag 16 at the time of opening, even the soft and deformable developing bag 16 can be reliably opened.

また開封時の現像剤の排出に関して、前述のように開封時に力点部20aと固定部18cで結んだ線上に接合部22が動く(図7(a)→図7(b)→図7(c)→図8(a))。この動きにより開口部35a周辺の現像剤が動かされ現像剤の凝集を崩す事が出来る。 Regarding the discharge of the developer at the time of opening, the joint portion 22 moves on the line connected by the force point portion 20a and the fixing portion 18c at the time of opening (FIG. 7 (a) → FIG. 7 (b) → FIG. 7 (c). ) → FIG. 8 (a)). By this movement, the developer around the opening 35a is moved, and the aggregation of the developer can be broken.

また図34で示すように、開封部材20の回転方向は矢印C2の回転方向に回転させても開封可能である。このように開封部材20の回転方向は図4〜9で示すCの方向でも図34のC2の方向でも選択可能であり、設計に応じて適宜回転方向を選択すればよい。 Further, as shown in FIG. 34, the opening member 20 can be opened even if it is rotated in the rotation direction of the arrow C2. As described above, the rotation direction of the opening member 20 can be selected from the direction C shown in FIGS. 4 to 9 and the direction C2 shown in FIG. 34, and the rotation direction may be appropriately selected according to the design.

(開封に関係する固定部の配置関係)
図4に示すように第一の接合部22bを確実に剥がすためには第一の接合部22bと固定部18cの間には次のような配置の関係が求められる。開封時には固定部18cに対して封止部材19を矢印Dの方向に開封部材20が引っ張る。この時、開封部材20による封止部材19の移動方向Dにおいて、固定部18cは開口部35aの上流側に設けられている。そのため矢印Hの方向に固定部18cの力が加わる。よって開封の力を加えた時に固定部18cと開封部材20の間で矢印Hと矢印Dの方向に引っ張られて第一の接合部22aに力を加え矢印Eの方向に開封が進む。このように封止部材19の移動方向Dにおいて上流に固定部18cを設けていなければ開封部材20が引っ張られた方向に現像剤袋16全体が引っ張られてしまい第一の接合部22aに力を加えることができず開封できない。
(Arrangement of fixed parts related to opening)
As shown in FIG. 4, in order to reliably peel off the first joint portion 22b, the following arrangement relationship is required between the first joint portion 22b and the fixed portion 18c. At the time of opening, the opening member 20 pulls the sealing member 19 with respect to the fixing portion 18c in the direction of arrow D. At this time, in the moving direction D of the sealing member 19 by the opening member 20, the fixing portion 18c is provided on the upstream side of the opening 35a. Therefore, the force of the fixing portion 18c is applied in the direction of the arrow H. Therefore, when the opening force is applied, the fixing portion 18c and the opening member 20 are pulled in the directions of the arrows H and D, and the force is applied to the first joint portion 22a to proceed the opening in the direction of the arrow E. In this way, if the fixing portion 18c is not provided upstream in the moving direction D of the sealing member 19, the entire developer bag 16 is pulled in the direction in which the opening member 20 is pulled, and a force is applied to the first joint portion 22a. It cannot be added and cannot be opened.

このように封止部材19の移動方向Dにおいて上流に固定部18cを設けていることにより確実な開封が可能となるのである。 By providing the fixing portion 18c upstream in the moving direction D of the sealing member 19 in this way, reliable opening is possible.

(開封に関係する固定部の距離関係)
図22、図23に示すように第一の接合部22bを確実に剥がすためには第一の接合部22bと固定部18cの間には次のような長さの関係が求められる。まず開封部材20と、開口部35aと、固定部18cと、を通り、開封部材20の回転軸に垂直な平面を見た時に、第一の接合部22aの中で最後にはがされる点を第一の点22dとする。第一の点22dは、第一の接合部22aのなかで開口部に近い側の端部の点である。そして固定部18cから現像剤袋16に沿って第一の点22dとの距離をM1とする。そして開口部35aを含む方向に、固定部18dから第一の点22dまで現像剤収納袋16の沿って測った距離をM2とする。なお開口部35aは現像剤袋16の素材が存在しない空間であるが、この開口部16の幅も距離に含める。
(Distance relationship of fixed part related to opening)
As shown in FIGS. 22 and 23, in order to reliably peel off the first joint portion 22b, the following length relationship is required between the first joint portion 22b and the fixed portion 18c. First, when the flat surface perpendicular to the rotation axis of the opening member 20 is viewed through the opening member 20, the opening 35a, and the fixing portion 18c, the point that is finally peeled off in the first joint portion 22a. Is the first point 22d. The first point 22d is a point at the end of the first joint 22a on the side closer to the opening. Then, the distance from the fixing portion 18c to the first point 22d along the developer bag 16 is set to M1. Then, the distance measured along the developer storage bag 16 from the fixed portion 18d to the first point 22d in the direction including the opening 35a is defined as M2. The opening 35a is a space in which the material of the developer bag 16 does not exist, but the width of the opening 16 is also included in the distance.

この時M1<M2を満たすようにして第一の接合部を剥がせるようにしている。
ここで上記M1<M2の関係について詳細に述べる。
At this time, the first joint portion can be peeled off so as to satisfy M1 <M2.
Here, the relationship of M1 <M2 will be described in detail.

(M1<M2の場合)
まずM1<M2を満たす場合は図22に示す様に第一の接合部22aに開封部材20の封止部材19を引っ張る力(矢印D)と固定部18cの踏ん張る力(矢印H)が第一の接合部22aにかかり第一の接合部22aに対して傾斜剥離とすることができる。傾斜剥離とすることで剥離力を低く設定することができる。ここで図22(a)は開封前、図22(b)は第一の接合部22aが開封する直前である。
(When M1 <M2)
First, when M1 <M2 is satisfied, as shown in FIG. 22, the force for pulling the sealing member 19 of the opening member 20 (arrow D) and the force for stepping on the fixing portion 18c (arrow H) are first at the first joint 22a. The joint portion 22a of the above can be subjected to inclined peeling with respect to the first joint portion 22a. The peeling force can be set low by using the inclined peeling. Here, FIG. 22A is before opening, and FIG. 22B is just before opening the first joint portion 22a.

(M1>M2の場合)
一方M1>M2の場合は図23に示す様に第一の接合部22aに開封部材20の引っ張る力がかからず第二の接合部22bに力がかかる。この場合第一の接合部22aには力がかからない為剥離しない。この場合第二の接合部22bに開封部材20からの力(矢印D)と固定部18cの踏ん張る力(矢印H)がかかる。この状態では第二の接合部22bには開封部材20の封止部材19を引っ張る力(矢印D)と固定部18cの踏ん張る力(矢印H)がかかり第二の接合部22bの部分には剥離関係がせん断剥離の関係となるため第二の接合部22bを開封することが困難である。これはせん断剥離が傾斜剥離に比べ大きな力が必要であるからである。
(When M1> M2)
On the other hand, in the case of M1> M2, as shown in FIG. 23, the pulling force of the opening member 20 is not applied to the first joint portion 22a, and the force is applied to the second joint portion 22b. In this case, no force is applied to the first joint portion 22a, so that the joint portion 22a does not peel off. In this case, the force from the opening member 20 (arrow D) and the force to step on the fixing portion 18c (arrow H) are applied to the second joint 22b. In this state, a force for pulling the sealing member 19 of the opening member 20 (arrow D) and a force for stepping on the fixing portion 18c (arrow H) are applied to the second joint portion 22b, and the second joint portion 22b is peeled off. It is difficult to open the second joint 22b because the relationship is a shear peeling relationship. This is because shear peeling requires a larger force than inclined peeling.

ここで図23(a)は開封前、図23(b)は開封部材20が回転し接合部(この場合は第二の接合部)に開封部材20により封止部材19が引っ張られる力(矢印D)かがかかる時の図である。また第二の接合部22bには力が加わるがせん断剥離の関係で力がかかるため傾斜剥離の場合に比べて非常に大きな力が必要となり剥離力を低減させる事が難しくなる。 Here, FIG. 23A shows a force before opening, and FIG. 23B shows a force (arrow) in which the opening member 20 rotates and the sealing member 19 is pulled by the opening member 20 to the joint portion (in this case, the second joint portion). D) It is a figure when it takes. Further, although a force is applied to the second joint portion 22b, a force is applied due to shear peeling, so that a very large force is required as compared with the case of inclined peeling, and it becomes difficult to reduce the peeling force.

(ヒダのある場合の距離)
なおここで前述のM1、M2の距離の測りかたの定義について述べる。M1、M2の距離は開封時に引っ張られた時の距離が重要なのでありM1、M2経路の途中にヒダ16tが無い場合は図22、図23のように展開した距離を測れば良い。また図24で示すようにM1、M2の経路の途中に製造上貼り合わせでできるヒダ16tがある場合は、開封時に引っ張った場合でもヒダ16tは伸びない(剥がれない)為ヒダ16tの部分はM1、M2の距離には含まれない。つまりヒダ16tのように力の伝達に影響しない部分は為M1やM2距離に含めない。
(Distance when there are folds)
Here, the definition of how to measure the distances of M1 and M2 described above will be described. The distance between M1 and M2 is important when it is pulled at the time of opening. If there is no fold 16t in the middle of the M1 and M2 routes, the developed distance may be measured as shown in FIGS. 22 and 23. Further, as shown in FIG. 24, if there is a fold 16t formed by bonding in the middle of the path of M1 and M2, the fold 16t does not stretch (does not peel off) even if it is pulled at the time of opening, so the portion of the fold 16t is M1. , M2 distance is not included. In other words, parts that do not affect force transmission, such as folds 16t, are not included in the M1 and M2 distances.

以上のようにM1<M2の関係として第一の接合部22aが第二の接合部22bより先に開封される。第一の接合部22aが第二の接合部22bより先に開封されることで第一の接合部22aが封止部材19の返し部19dができる。この返し部19dによりせん断剥離にならず傾斜剥離となる。これにより確実に現像剤袋16から封止部材19を確実に剥離できて開封可能な現像装置38を提供できる。 As described above, the first joint portion 22a is opened before the second joint portion 22b because of the relationship of M1 <M2. When the first joint portion 22a is opened before the second joint portion 22b, the first joint portion 22a forms a return portion 19d of the sealing member 19. The return portion 19d causes inclined peeling instead of shear peeling. This makes it possible to provide the developing device 38 which can surely peel off the sealing member 19 from the developing agent bag 16 and can be opened.

(固定部が複数の場合)
ここで複数の固定部と開封の関係について図31を用いて述べる。図31(a)の状態から開封部材20が回転して第一の接合部22aが開封する直前が図31(b)である。本実施例では第一の固定部18aと第二の固定部18bを有している。ここで開口部35aを挟んで最初に開封される第一の接合部22aに近い場所に配置されている第一の固定部18aの方に開封時の力が加わる。そのため前述のM1、M2の距離の測りかたに第二の固定部18bは考慮しなくてよい。このように複数の固定部がある場合には開封時の力が加わる開口部35aを挟んで最初に開封される第一の接合部22aに近い場所に配置されている固定部を基準とすればよい。
(When there are multiple fixed parts)
Here, the relationship between the plurality of fixed portions and the opening will be described with reference to FIG. 31. FIG. 31 (b) is just before the opening member 20 rotates from the state of FIG. 31 (a) and the first joint portion 22a is opened. In this embodiment, it has a first fixing portion 18a and a second fixing portion 18b. Here, the force at the time of opening is applied to the first fixing portion 18a arranged at a position close to the first joint portion 22a which is first opened with the opening 35a sandwiched between them. Therefore, it is not necessary to consider the second fixing portion 18b in the above-mentioned method of measuring the distances of M1 and M2. When there are a plurality of fixed portions in this way, the fixed portion arranged at a location close to the first joint portion 22a to be opened first with the opening 35a to which the force at the time of opening is applied is used as a reference. Good.

(第二の接合部の位置関係)
次に第一の接合部22aの開封直前の状態を示す図12を用いて第二の接合部22bが開封部材20に巻き込まれずにより良好に開封できる配置について述べる。まず第一の接合部22aの開口部35aから遠い側の端部を第二の点22eとする。第二の接合部22bの開口部35aから遠い側の端部を第三の点22fとする。ここで第二の点22eから第三の点22fの距離をL1とする。また第二の点22eから力点部20aの距離をL2とする。この時に前記距離L1と前記距離L2の関係はL1<L2の関係が必要である。
(Positional relationship of the second joint)
Next, the arrangement in which the second joint portion 22b can be opened more satisfactorily without being caught in the opening member 20 will be described with reference to FIG. 12 showing the state of the first joint portion 22a immediately before opening. First, the end of the first joint 22a on the side far from the opening 35a is designated as the second point 22e. The end of the second joint 22b on the side far from the opening 35a is designated as the third point 22f. Here, the distance from the second point 22e to the third point 22f is defined as L1. Further, the distance from the second point 22e to the power point portion 20a is L2. At this time, the relationship between the distance L1 and the distance L2 needs to be L1 <L2.

その理由はL1がL2より大きい場合は第二の接合部22bの剥離が終わる前に第二の接合部22bが力点部20aに到達してしまい、第二の接合部22bが開封部材20に巻きついてしまう。第二の接合部22bに対して剥離するように力をかける事ができない。そのため現像剤袋16から封止部材19を開封困難となるのである。 The reason is that when L1 is larger than L2, the second joint 22b reaches the force point 20a before the peeling of the second joint 22b is completed, and the second joint 22b is wound around the opening member 20. I will follow you. No force can be applied to the second joint 22b to peel it off. Therefore, it becomes difficult to open the sealing member 19 from the developer bag 16.

以上のように前記距離L1と前記距離L2の関係はL1<L2とすることで封止部材19を開封部材20に巻き込まれず良好に開封可能となるのである。 As described above, by setting the relationship between the distance L1 and the distance L2 to L1 <L2, the sealing member 19 is not caught in the opening member 20 and can be opened satisfactorily.

(開口部を定義する連結部の役割)
ここで現像剤袋16の開封動作において、大きな役割を果たしている開口部を定義する連結部35bの概要を述べる。
(Role of the connecting part that defines the opening)
Here, the outline of the connecting portion 35b that defines the opening that plays a major role in the opening operation of the developer bag 16 will be described.

図11は、最初に開封する第一の接合部22aの部分の剥離を終えて、開口部35aが露出した時の図であり、第二の接合部22bの剥離を終えていない状態である。前述したとおり排出部35は開口部35aの露出が進行する開封方向Eに対して垂直方向Fにずれて複数の開口部35aを有している。そのため複数の開口部を定義する連結部35bもFの方向に複数配されることになる。これにより複数の連結部35bは、排出部35の開封が進行する方向Eの方向において、第一の接合部22aと第二の接合部22bとを橋渡ししていることになる。そのため、第一の接合部22aの開封を終えた図8の状態の時に、第二の接合部22aが開封する時の力は前記連結部35bを介して第一の固定部16dで受けることが可能となり封止部材19を現像剤袋16から剥す力を伝えることができる。つまり第二の接合部22bに矢印Dと矢印Eの方向に力がかかり第二の接合部22bも剥離可能となるのである。 FIG. 11 is a view when the opening portion 35a is exposed after the peeling of the portion of the first joint portion 22a to be opened first is completed, and the peeling of the second joint portion 22b is not completed. As described above, the discharge portion 35 has a plurality of openings 35a displaced in the direction F perpendicular to the opening direction E in which the exposure of the openings 35a progresses. Therefore, a plurality of connecting portions 35b that define a plurality of openings are also arranged in the direction of F. As a result, the plurality of connecting portions 35b bridge the first joint portion 22a and the second joint portion 22b in the direction E in which the opening of the discharging portion 35 proceeds. Therefore, in the state of FIG. 8 when the first joint portion 22a has been opened, the force when the second joint portion 22a is opened can be received by the first fixing portion 16d via the connecting portion 35b. This makes it possible to transmit the force for peeling the sealing member 19 from the developer bag 16. That is, a force is applied to the second joint portion 22b in the directions of the arrows D and E, and the second joint portion 22b can also be peeled off.

以上のように図28(b)のように開封方向Eに対して垂直な方向Fに開口部が並んだ場合以外にも同様の効果を得られる。図28(c)のように開封方向Eに対して垂直な方向に完全に並んでいなくても連結部35bは封止部材19を現像剤袋16から剥す力を第二の接合部22bに矢印Pのように伝えることができる。また図28(d)のように開封方向Eに対して開口部35aが重なっていても連結部35bは斜めに封止部材19を現像剤袋16から剥す力を第二の接合部22bに矢印Pのように伝えることができる。即ち、複数の開口部35aが開封方向Eに垂直な方向Fにずれて配置されていればよい。 As described above, the same effect can be obtained except when the openings are arranged in the direction F perpendicular to the opening direction E as shown in FIG. 28 (b). Even if the connecting portion 35b is not completely aligned in the direction perpendicular to the opening direction E as shown in FIG. 28C, the connecting portion 35b applies a force for peeling the sealing member 19 from the developer bag 16 to the second joint portion 22b. It can be conveyed as shown by the arrow P. Further, as shown in FIG. 28 (d), even if the opening 35a overlaps the opening direction E, the connecting portion 35b diagonally applies a force for peeling the sealing member 19 from the developing agent bag 16 to the second joining portion 22b. It can be conveyed like P. That is, the plurality of openings 35a may be arranged so as to be offset in the direction F perpendicular to the opening direction E.

また図28(b)のように連結部35bを含む開口部35aの周囲の部分を接合部22としても良い。この場合でも連結部35bがあることで接合部22がはがれる最後まで力をつたえることができるので開封が確実に行われる。 Further, as shown in FIG. 28B, a portion around the opening 35a including the connecting portion 35b may be used as the joining portion 22. Even in this case, the presence of the connecting portion 35b allows the force to be applied until the joint portion 22 is peeled off, so that the opening is surely performed.

また、開封部材20の回転軸と開口部35aとの関係で言えば、開口部35aは開封部材20の回転軸の方向Rにずれて配置されていると言える。このようにすることで、開封部材20の回転軸と垂直方向(矢印E)に橋渡しする連結部35bを有する。開口部35aの配置は、開封部材の回転軸方向Rにずれていれば良い。図28(b)に示すように開口部35aが回転軸方向Rに重なっていても、図28(d)に示すように回転軸方向Rに完全に重なっていなくても矢印Pのように力を伝える事が出来て連結部35bの効果がある。 Further, in terms of the relationship between the rotation axis of the opening member 20 and the opening 35a, it can be said that the opening 35a is arranged so as to be displaced in the direction R of the rotation axis of the opening member 20. By doing so, it has a connecting portion 35b that bridges the opening member 20 in the direction perpendicular to the rotation axis (arrow E). The arrangement of the openings 35a may be shifted in the rotation axis direction R of the opening member. Even if the opening 35a overlaps the rotation axis direction R as shown in FIG. 28 (b) and does not completely overlap the rotation axis direction R as shown in FIG. 28 (d), the force is as shown by the arrow P. It is possible to convey the effect of the connecting portion 35b.

このように現像剤を収納した現像剤収納容器26と開封部材を有した現像剤収納容器30は排出部35に橋渡しする連結部35bがあることにより開封部材20の開封力を第二の接合部22bを開封するまで伝えることができて確実に開封することができる。 The developer storage container 26 that stores the developer and the developer storage container 30 that has the opening member in this way have a connecting portion 35b that bridges the discharging portion 35, so that the opening force of the opening member 20 is reduced to the second joint portion. It is possible to tell until 22b is opened and the container can be opened reliably.

また、開口部35aと、封止部材の被係合部19bとの関係を説明する(図3)。被係合部19bは、複数の開口部35aが並んでいる方向と略垂直方向の封止部材19の一端側に設けられている。 Further, the relationship between the opening 35a and the engaged portion 19b of the sealing member will be described (FIG. 3). The engaged portion 19b is provided on one end side of the sealing member 19 in a direction substantially perpendicular to the direction in which the plurality of openings 35a are lined up.

また、開口部35aと、開封部材20との関係を説明する(図3)。開封部材20は、複数の開口部35aが並んでいる方向と略垂直方向の封止部材19の一端側に設けられている。 Further, the relationship between the opening 35a and the opening member 20 will be described (FIG. 3). The opening member 20 is provided on one end side of the sealing member 19 in a direction substantially perpendicular to the direction in which the plurality of openings 35a are lined up.

このような構成でも、連結部35bにより開封部材20の開封力を第二の接合部22bを開封するまで伝えることができる効果をえることができる。 Even with such a configuration, it is possible to obtain the effect that the opening force of the opening member 20 can be transmitted by the connecting portion 35b until the second joint portion 22b is opened.

(連結部が別部材の例)
また図21に示すように排出部35開口部35aを定義する連結部35bを別の部材(連結部材16f)としても良い。この場合開封方向Eに垂直な方向Fに長い一つの開口部16aを設け前記長い一つの開口部16aに開封方向Eに沿って橋渡しする別部材である連結部材16fを設ける構成である。この時長い一つの開口部16aの第一の接合部22a側と第二の接合部22b側にそれぞれ連結部材16fを接着、溶着等で接合されている。
(Example of a separate member for the connecting part)
Further, as shown in FIG. 21, the connecting portion 35b that defines the opening portion 35a of the discharging portion 35 may be another member (connecting member 16f). In this case, one long opening 16a is provided in the direction F perpendicular to the opening direction E, and the connecting member 16f, which is another member bridging along the opening direction E, is provided in the long one opening 16a. At this time, the connecting member 16f is bonded, welded, or the like to the first joint 22a side and the second joint 22b side of one long opening 16a, respectively.

なお現像剤袋16に連結部材16fを設けた場合においても封止部材19は前述のように接合部22と被係合部19bの間で折り返されていることで開封部材20に封止部材19を巻きつける事で開封可能としている。このような構成をとる事により複数の開口部35aを設けた場合の開口部を定義する連結部35bと連結部材16fは同じ役割を果たす。つまり長い一つの開口部16aは連結部材16fにより複数の開口部35aがある場合と同じなのである。 Even when the connecting member 16f is provided in the developing agent bag 16, the sealing member 19 is folded back between the joint portion 22 and the engaged portion 19b as described above, so that the sealing member 19 is attached to the opening member 20. It is possible to open it by wrapping it around. By adopting such a configuration, the connecting portion 35b and the connecting member 16f that define the openings when a plurality of openings 35a are provided play the same role. That is, one long opening 16a is the same as when there are a plurality of openings 35a due to the connecting member 16f.

よって第一の接合部22aの開封を終えて第二の接合部22bを剥離する時に、開封部材20が第二の接合部22aが開封する時の力(矢印D)は前記連結部材16fを介して第一の固定部16dで矢印Hに受けることが可能となる。よって、封止部材19を現像剤袋16から剥す力を伝えることができる。つまり第二の接合部22bに矢印Dと矢印Hの方向に力がかかり第二の接合部22bも可能となるのである。 Therefore, when the opening of the first joint portion 22a is completed and the second joint portion 22b is peeled off, the force (arrow D) when the opening member 20 opens the second joint portion 22a passes through the connecting member 16f. The first fixing portion 16d can be received by the arrow H. Therefore, the force for peeling the sealing member 19 from the developer bag 16 can be transmitted. That is, a force is applied to the second joint portion 22b in the directions of the arrows D and H, and the second joint portion 22b is also possible.

このように長い一つの開口部16aは連結部材16fにより複数の開口部35aをつくることで連結部材16fのみを強くしたりすることも可能となる。 As for one long opening 16a as described above, it is possible to strengthen only the connecting member 16f by forming a plurality of openings 35a by the connecting member 16f.

(連結部が無い場合の開封性の課題)
ここで本発明を適用せず現像剤袋16が開封困難な例について述べる。これは図13、14で示すように連結部35bが存在せず開封が困難になる場合である。図13は連結部35bが存在せず開口部16aが一つの例であり、図13(a)は第二の接合部22bの剥離前の状態で、図13(b)と図15は第二の接合部を剥離する時の状態を示した図である。また図8は本実施例における第二の接合部22aを引き剥がす状態の開口部35a周辺の拡大断面図であり、図14は連結部35bが存在せず開封が困難になる場合の開口部35a周囲の断面図である。
(Issues of openability when there is no connecting part)
Here, an example in which the developer bag 16 is difficult to open without applying the present invention will be described. This is a case where the connecting portion 35b does not exist as shown in FIGS. 13 and 14 and the opening becomes difficult. FIG. 13 shows an example in which the connecting portion 35b does not exist and the opening 16a is one example. FIG. 13A shows the state before the second joint portion 22b is peeled off, and FIGS. 13B and 15 show the second. It is a figure which showed the state at the time of peeling off the joint part of. Further, FIG. 8 is an enlarged cross-sectional view of the periphery of the opening 35a in a state where the second joint portion 22a is peeled off in the present embodiment, and FIG. It is a sectional view of the surroundings.

この場合第二の接合部22bまで開封が進んだ状態が図14(a)であり、この状態から更に開封部材20の回転により封止部材19が矢印Dの方向に引っ張られ移動する。すると連結部35bを有さない為に、第一の固定部16dからの力を、開口部16aの中央の第二の接合部22b側に伝達することができない。そのため図14(b)、図13(b)のように第二の接合部22bは枠体の固定部18aからの拘束力がなくなり開口部16aが矢印Dの方向に大きく開いていく。更に第二の接合部22bが封止部材19に引っ張られて図14(c)に示す様に開口部16aが変形する。この場合第二の接合部22bに働く力は図8に示すような傾斜剥離の位置関係にならず、図14(b)に示すように開口部35aが変形する事でせん断剥離(略0°剥離)となるため剥離するために大きな力が必要となる。しかも第一の固定部16dが支持する力を第二の接合部22bに伝達できないため第二の接合部22bは剥離できないまま開封部材20に引っ張られていく。そのため第二の接合部22bの長手中央付近の開口部16aが更に大きく開いてしまい、開封部材20に巻きついてしまう。 In this case, the state in which the opening is advanced to the second joint portion 22b is shown in FIG. 14A, and from this state, the sealing member 19 is pulled and moved in the direction of the arrow D by the rotation of the opening member 20. Then, since the connecting portion 35b is not provided, the force from the first fixing portion 16d cannot be transmitted to the second joint portion 22b in the center of the opening 16a. Therefore, as shown in FIGS. 14 (b) and 13 (b), the second joint portion 22b loses the binding force from the fixed portion 18a of the frame body, and the opening portion 16a opens wide in the direction of the arrow D. Further, the second joint portion 22b is pulled by the sealing member 19, and the opening portion 16a is deformed as shown in FIG. 14 (c). In this case, the force acting on the second joint 22b does not have the positional relationship of the inclined peeling as shown in FIG. 8, and the opening 35a is deformed as shown in FIG. 14 (b) to cause shear peeling (approximately 0 °). (Peeling), so a large force is required to peel off. Moreover, since the force supported by the first fixing portion 16d cannot be transmitted to the second joint portion 22b, the second joint portion 22b is pulled by the opening member 20 without being peeled off. Therefore, the opening 16a near the center of the longitudinal direction of the second joint 22b opens even wider and winds around the opening member 20.

なお現像剤を収納するものが構造体のように硬いものであればこのような変形は無く従来例のように開封可能である。しかし、現像剤を変形可能な柔らかい袋状のものに収納し、開口部が開封時変形するようなものを開封する構成の場合は前述のように連結部35bがないと開封が難しくなる。 If the developer is stored as hard as a structure, there is no such deformation and the package can be opened as in the conventional example. However, in the case of a configuration in which the developer is stored in a deformable soft bag-shaped object and the opening is deformed when opened, it is difficult to open the package without the connecting portion 35b as described above.

以上述べてきたように画像形成装置Bの開封部材20に駆動力を伝える事で封止部材19(=トナーシール)を開封可能とし、ユーザーがトナーシールを引き取り去る必要がなくなり、より簡便に現像装置38、プロセスカートリッジAを交換して使用できる。また開封後の封止部材19が開封部材20に固定されていることで、プロセスカートリッジAから廃材を出すことなく開封ができる。 As described above, by transmitting the driving force to the opening member 20 of the image forming apparatus B, the sealing member 19 (= toner seal) can be opened, and the user does not have to remove the toner seal, which makes development easier. The device 38 and the process cartridge A can be replaced and used. Further, since the sealing member 19 after opening is fixed to the opening member 20, the process cartridge A can be opened without discharging waste material.

<押圧部材と現像剤排出概要について>
(押圧部材)
図16に示すように押圧部材21は軸部21aと、軸部21aに固定された押圧シート21bを備えており、第一の枠体17と第二の枠体18の内部に回転可能に設けられている。
<Overview of pressing member and developer discharge>
(Pressing member)
As shown in FIG. 16, the pressing member 21 includes a shaft portion 21a and a pressing sheet 21b fixed to the shaft portion 21a, and is rotatably provided inside the first frame body 17 and the second frame body 18. Has been done.

まず軸部21aは開封部材20と同一部品で機能させている(21a=20)。よって前述のように不図示の画像形成装置B本体からの駆動手段により駆動力が伝達され矢印Cの方向に押圧部材21(=20)が回転する。 First, the shaft portion 21a is made to function as the same component as the opening member 20 (21a = 20). Therefore, as described above, the driving force is transmitted by the driving means from the image forming apparatus B main body (not shown), and the pressing member 21 (= 20) rotates in the direction of the arrow C.

次に押圧シート21bは断面が四角い軸部21aの一面に固定されて、軸部材21aと共に回転する。なお前記押圧シート21bの材質としてはPET、PPS(ポリフェニレンスルファイド)、ポリカーボネイト、等の可撓性シートで、厚みは0.05〜0.1mm程度を用い、その先端は軸部21aの外接円より外側に突出している。ここで本実施例では軸部21aの異なる面に封止部材19と押圧シート21bを固定しているが、軸部21aの同じ面に封止部材19と押圧シート21bを固定しても良い。 Next, the pressing sheet 21b is fixed to one surface of the shaft portion 21a having a square cross section, and rotates together with the shaft member 21a. The material of the pressing sheet 21b is a flexible sheet such as PET, PPS (polyphenylene sulfide), polycarbonate, etc., the thickness of which is about 0.05 to 0.1 mm, and the tip thereof is the circumscribed circle of the shaft portion 21a. It protrudes more outward. Here, in this embodiment, the sealing member 19 and the pressing sheet 21b are fixed to different surfaces of the shaft portion 21a, but the sealing member 19 and the pressing sheet 21b may be fixed to the same surface of the shaft portion 21a.

また図16、図17に示すように前記押圧シート21bは現像剤を攪拌し、現像ローラ13や現像剤供給23の方へ搬送する機能も兼ねている。 Further, as shown in FIGS. 16 and 17, the pressing sheet 21b also has a function of stirring the developing agent and transporting it to the developing roller 13 and the developing agent supply 23.

<現像剤収納袋からの現像剤排出概要>
(開封前から開封時の排出概要)
まず開封前から開封開始時の現像剤の排出に関して前述の図7、図8に示すように封止部材19は力点部20aの方へ引っ張り(矢印D)、現像剤袋16は枠体の固定部18cで支えられる。そのため、開封時は力点部20aと、枠体の固定部18cと、接合部22の剥離する場所との3か所は、開封部材20の回転軸に垂直な断面において直線状に並ぶ方向に移動する。このように開封部材20が封止部材19に力を与え開封動作を行う前の時と、開封動作を開始し前記第一の接合部22aでの接合が開封される時とで、開口部35aの位置が変化することにより開口部35a近傍の現像剤滞留を防ぐことができて排出性が良い。
<Outline of developing agent discharged from the developing agent storage bag>
(Outline of discharge from before opening to when opening)
First, regarding the discharge of the developer from before opening to the start of opening, as shown in FIGS. 7 and 8 described above, the sealing member 19 is pulled toward the emphasis point portion 20a (arrow D), and the developer bag 16 is fixed to the frame. It is supported by the portion 18c. Therefore, at the time of opening, the force point portion 20a, the fixing portion 18c of the frame body, and the place where the joint portion 22 is peeled off move in a direction in which they are aligned linearly in a cross section perpendicular to the rotation axis of the opening member 20. To do. The opening 35a is obtained before the opening member 20 applies force to the sealing member 19 to perform the opening operation and when the opening operation is started and the joint at the first joint portion 22a is opened. By changing the position of the developer, it is possible to prevent the developer from staying in the vicinity of the opening 35a, and the discharge property is good.

(開封後の排出概要 押圧時)
また開封後は図8(b)に示すように前述の現像剤袋16から封止部材19を開封すると、まず開口部35aは現像剤袋16の下方に開くように配置してあるため、重力の作用と開封時の現像剤袋16の振動等により開口部35a付近の現像剤が排出される。
(Outline of discharge after opening when pressed)
Further, after opening, when the sealing member 19 is opened from the above-mentioned developer bag 16 as shown in FIG. 8B, the opening 35a is arranged so as to open below the developer bag 16 and thus gravity. The developer in the vicinity of the opening 35a is discharged due to the action of the above and the vibration of the developer bag 16 at the time of opening.

開封後更に開封部材20の回転が進むと、開封部材20に固定された現像剤袋16を押す押圧シート21bも回転し、図9で示すように現像剤袋16により開封部材20に巻き着く。ここで図16に示すように押圧シート21bは弾性を有しているため、もとの形状に回復しようとするために現像剤袋16を矢印J方向に押す。この時現像剤袋16は押圧シート21bにより押され収納するトナーを介して第二の枠体18に押さえつけられ現像剤袋16全体が変形する。また現像剤袋16は押圧シート21bにより押され内容積が少なくなる。このように現像剤袋16の容積減と全体形状の変化により、現像剤袋16の内部の現像剤は撹拌され、それにより開口部35aから現像剤が排出されやすくなる。またこの時現像剤袋16は開口部35a以外は閉じており開口部35a以外に現像剤の逃げ道が無いため開口部35aからの排出性が高い。以上のような排出作用により矢印Iの方向に現像剤を排出しやすい。 When the opening member 20 further rotates after opening, the pressing sheet 21b that pushes the developer bag 16 fixed to the opening member 20 also rotates and is wound around the opening member 20 by the developing agent bag 16 as shown in FIG. Here, as shown in FIG. 16, since the pressing sheet 21b has elasticity, the developer bag 16 is pushed in the direction of arrow J in order to restore the original shape. At this time, the developer bag 16 is pressed against the second frame 18 via the toner pressed and stored by the pressing sheet 21b, and the entire developer bag 16 is deformed. Further, the developer bag 16 is pushed by the pressing sheet 21b to reduce the internal volume. As described above, the volume reduction of the developer bag 16 and the change in the overall shape cause the developer inside the developer bag 16 to be agitated, whereby the developer is easily discharged from the opening 35a. At this time, the developer bag 16 is closed except for the opening 35a, and there is no escape route for the developer other than the opening 35a, so that the developer bag 16 has high dischargeability from the opening 35a. Due to the discharge action as described above, the developer can be easily discharged in the direction of arrow I.

なおこの時現像剤袋16は少なくとも一部が第二の枠体18に当接して押さえつけられれば現像剤袋16は変形できる。 At this time, the developer bag 16 can be deformed if at least a part of the developer bag 16 is in contact with and pressed against the second frame body 18.

また現像ローラ13の回転軸方向と複数の開口部35aの並ぶ方向Fを揃えることで、現像剤を排出時に現像ローラ13の長手方向全体に現像剤が偏りなく供給され易くすることができる。 Further, by aligning the rotation axis direction of the developing roller 13 with the direction F in which the plurality of openings 35a are arranged, it is possible to facilitate the uniform supply of the developing agent to the entire longitudinal direction of the developing roller 13 when the developing agent is discharged.

また現像装置38が画像形成装置Bに装着された際に、開口部35aが重力方向に開くように設けられることで現像剤の排出性を向上させる事ができる。 Further, when the developing device 38 is attached to the image forming device B, the opening 35a is provided so as to open in the direction of gravity, so that the dischargeability of the developing agent can be improved.

また枠体(17、18)内部に設けられて押圧部材21が現像剤袋16を第二の枠体18に押し付けるように押圧することで現像剤の排出性を向上させる事が出来る。
また、封止部材19も、基材がポリエチレンテレフタレート(PET)、ポリエチレン、ポリプロピレン等で、厚み0.03〜0.15mmの可撓性シートを用いている為、上記押圧シート21bと同様のメカニズムによって排出作用に関わっている。
Further, the developer can be discharged easily by pressing the developer bag 16 so as to be pressed against the second frame 18 by the pressing member 21 provided inside the frame (17, 18).
Further, since the sealing member 19 also uses a flexible sheet having a base material of polyethylene terephthalate (PET), polyethylene, polypropylene or the like and a thickness of 0.03 to 0.15 mm, it has the same mechanism as the pressing sheet 21b. Is involved in the excretion effect.

(排出概要 現像剤袋形状回復)
そして図17で示すように更に開封部材20の回転が進み押圧シート21bが現像剤袋16から離れる。この時現像剤袋16は可撓性を有しているため収納する現像剤の重さで押圧される前の状態に回復しようとする(矢印K)。そしてまた押圧シート21bも回転し、図16で示すように現像剤袋16を第二の枠体18に押し現像剤袋16が変形することで開口部35a付近以外の現像剤も動かされ開口部35aより排出される。
(Outline of discharge: Recovery of developer bag shape)
Then, as shown in FIG. 17, the opening member 20 further rotates, and the pressing sheet 21b separates from the developer bag 16. At this time, since the developer bag 16 has flexibility, it tries to recover to the state before being pressed by the weight of the developer to be stored (arrow K). Then, the pressing sheet 21b also rotates, and as shown in FIG. 16, the developer bag 16 is pushed against the second frame 18, and the developer bag 16 is deformed, so that the developer other than the vicinity of the opening 35a is moved and the opening is opened. It is discharged from 35a.

(排出概要 押圧/回復の繰り返し)
開封直後の現像剤が現像剤袋16内部に多くある場合は押圧シート21bおよび開封部材20の現像剤袋16への侵入量が繰り返し変化し、第二の枠体18に押しつけるように現像剤袋16を変形させる。この押圧部材21の押圧による現像剤袋16の収縮と、現像剤袋16内部の現像剤の重さと現像剤袋16可撓性による回復を繰り返す。また前記作用により現像剤袋16自体が動くため現像剤袋16が振動し、この振動によっても現像剤袋16内部の現像剤が開口部35aから排出される。また押圧部材21は回転するため繰り返し現像剤袋16を押圧させることができる。
(Outline of discharge Repeated pressing / recovery)
When there is a large amount of developer immediately after opening inside the developer bag 16, the amount of the pressing sheet 21b and the opening member 20 invading the developer bag 16 repeatedly changes, and the developer bag is pressed against the second frame 18. 16 is transformed. The shrinkage of the developing agent bag 16 due to the pressing of the pressing member 21 and the recovery due to the weight of the developing agent inside the developing agent bag 16 and the flexibility of the developing agent bag 16 are repeated. Further, since the developer bag 16 itself moves due to the above action, the developer bag 16 vibrates, and the developer inside the developer bag 16 is also discharged from the opening 35a by this vibration. Further, since the pressing member 21 rotates, the developer bag 16 can be repeatedly pressed.

(現像剤袋を枠体に貼りつけた例)
なお現像剤袋16が第二の枠体18へ押圧される部分27は図25に示す様に接着剤、両面テープ等の接合部28を設けて接合されている場合でも押圧シート21bが現像剤袋16を押圧し現像剤を排出することができる。
(Example of attaching the developer bag to the frame)
As shown in FIG. 25, the portion 27 where the developer bag 16 is pressed against the second frame 18 is joined by providing a joint portion 28 such as an adhesive or double-sided tape, but the pressing sheet 21b is a developer. The developer can be discharged by pressing the bag 16.

(現像剤が少なくなった場合)
画像形成を行い現像剤袋16内の現像剤が少なくなった場合について図32を用いて説明する。尚、簡略化の為に押圧部材21を中心に説明するが、封止部材19に関しても同様の現象となる。開封直後は図32(a)に示すように収納する現像剤の重みにより現像剤袋16は押圧部材21に常に接触するように形状が追従して大きさ(内容積)を周期的に変化させる。しかし収納する現像剤が少なくなると図32(b)に示すように現像剤の重さが軽くなり押圧部材21に追従しなくなり周期定期に離接を繰り返すようになる。現像剤袋16と押圧部材21が周期的に接触するので、現像剤袋16が振動する事による現像剤の排出が可能である。
(When the developer is low)
The case where the image is formed and the amount of the developer in the developer bag 16 is reduced will be described with reference to FIG. 32. Although the pressing member 21 will be mainly described for simplification, the same phenomenon will occur with the sealing member 19. Immediately after opening, as shown in FIG. 32 (a), the shape of the developer bag 16 follows the pressing member 21 so as to be in constant contact with the pressure member 21, and the size (internal volume) is periodically changed due to the weight of the developer to be stored. .. However, when the amount of the developer to be stored decreases, as shown in FIG. 32 (b), the weight of the developer becomes lighter and does not follow the pressing member 21, and the detaching and disconnecting are repeated periodically. Since the developing agent bag 16 and the pressing member 21 are in periodic contact with each other, the developing agent can be discharged by vibrating the developing agent bag 16.

現像剤袋16と押圧部材21の位置関係によっては、現像剤が少なくなった時点で、現像剤袋16と押圧部材21が常に接触しなくなってしまう場合が有る。即ち、周期的な接触による現像剤の排出も行われなくなってしまう為、現像剤袋16内に排出されない現像剤が残ってしまう可能性が有る。この時、図32(c)に示すように押圧部材21に押圧シート21bが固定され、押圧シート21bが常に現像剤袋16に接触するのに充分な長さを有する構成とするのがよい。このようにすることで、現像剤袋16に対して押圧シート21bが撓んだ状態で接触している為に、現像剤が少なくなり現像剤袋16が変形した場合であっても、現像剤袋16と押圧部材21が接触しないという状態にならず、排出効果を維持する事が可能である。 Depending on the positional relationship between the developer bag 16 and the pressing member 21, the developing agent bag 16 and the pressing member 21 may not always come into contact with each other when the amount of the developing agent is low. That is, since the developer is not discharged due to periodic contact, there is a possibility that the developer that is not discharged remains in the developer bag 16. At this time, as shown in FIG. 32 (c), the pressing sheet 21b is fixed to the pressing member 21, and it is preferable that the pressing sheet 21b has a sufficient length to always be in contact with the developing agent bag 16. By doing so, since the pressing sheet 21b is in contact with the developer bag 16 in a bent state, the developer is reduced even when the developer bag 16 is deformed. The bag 16 and the pressing member 21 do not come into contact with each other, and the discharge effect can be maintained.

つまり、押圧部材21に可撓性シートを用いると、現像剤袋の状態に応じて、押圧部材の回転軸中心から現像剤袋16を押圧する作用点までの距離を変化させる事が可能である。具体的には、現像剤袋16にトナーが充分入っている時は押圧シート21bが撓んだ状態で現像剤袋16を押圧しているが、現像剤袋16のトナーが少なくなるにつれて、押圧シート21bの撓みがより解消された状態で現像剤袋16と接触するようになっている。 That is, when a flexible sheet is used for the pressing member 21, the distance from the center of the rotation axis of the pressing member to the point of action for pressing the developing agent bag 16 can be changed according to the state of the developing agent bag. .. Specifically, when the developer bag 16 is sufficiently filled with toner, the developing agent bag 16 is pressed with the pressing sheet 21b bent, but as the toner in the developing agent bag 16 decreases, the pressing is performed. The sheet 21b is brought into contact with the developer bag 16 in a state where the bending is further eliminated.

また、押圧部材21の回転軸方向において、現像剤袋16内の現像剤に偏りが生じ、現像剤袋16と押圧部材21の接触ムラが発生した場合であっても、上記押圧部材21に押圧シート21bが固定された構成であれば、上述と同様に排出効果を維持する事が可能である。 Further, even if the developing agent in the developing agent bag 16 is biased in the rotation axis direction of the pressing member 21 and uneven contact between the developing agent bag 16 and the pressing member 21 occurs, the pressing member 21 is pressed. If the sheet 21b has a fixed configuration, it is possible to maintain the discharge effect in the same manner as described above.

(押圧シートと封止部材の兼用)
なお押圧シート21と封止部材19を兼用させて1部品で両方の機能をもたせてもよい。これは開封封後に接合部22が現像剤袋16と離れるため、封止部材19の接合部22側の端部は自由端となる。このため封止部材19は押圧シート21bの機能を有することができる。このように押圧部材21の軸部21aの機能を開封部材20が有し、押圧シート21bの機能を封止部材19が有することが可能となる。
このようにすると、部品点数の削減ができてコストダウンが図れる。
(Combined use of pressing sheet and sealing member)
The pressing sheet 21 and the sealing member 19 may be used in combination to have both functions in one component. This is because the joint portion 22 separates from the developer bag 16 after opening, so that the end portion of the sealing member 19 on the joint portion 22 side becomes a free end. Therefore, the sealing member 19 can have the function of the pressing sheet 21b. As described above, the opening member 20 has the function of the shaft portion 21a of the pressing member 21, and the sealing member 19 can have the function of the pressing sheet 21b.
By doing so, the number of parts can be reduced and the cost can be reduced.

以上のように現像剤排出口である開口部35aに現像剤排出ローラ等の他の排出部品を設けることなく現像剤袋16内部の現像剤を良好に排出可能とし、開口部35a付近の現像剤の凝集、ブリッジを防止できる。これにより物流、保管時等で現像剤袋16内の現像剤がタッピングにより固まった場合でもこのような現像剤袋16全体や開口部35a周囲の移動により現像剤の塊を崩すことで現像剤の排出が困難になる状態を防止できる。 As described above, the developer inside the developer bag 16 can be satisfactorily discharged without providing other discharge parts such as a developer discharge roller in the opening 35a which is the developer discharge port, and the developer near the opening 35a can be discharged satisfactorily. Aggregation and bridging can be prevented. As a result, even if the developer in the developer bag 16 is solidified by tapping during distribution, storage, etc., the developer can be broken up by moving around the entire developer bag 16 and the opening 35a to break the lump of the developer. It is possible to prevent a state in which discharge becomes difficult.

(押圧部材が一部品の例)
また押圧部材21が軸部21aと押圧シート21bの別部品ではなく、図26(a)で示すように同一部品で押圧シート21bの作用をする凸部21cを押圧部材21に設けても同様に現像剤の排出を行うことができる。押圧部材21の軸部21aのみで構成される場合において、回転中心に垂直な断面で見たときに前記軸部21aの断面が多角形(図26(b))の形状やカム形状(図26(c))を有する場合でも現像剤袋16を枠体29に押圧して変形させる事が可能である。これは押圧部材21を少なくとも現像剤袋16に接するように配置すると、押圧部材21の回転中心から外形への距離が変化する為に押圧部材21の現像剤袋16への侵入量も変化するためである。つまり中心に回転軸をもつ円形断面の軸で無い限り、押圧部材21の回転により現像剤袋16を変形させる事が可能である。図26で示すように押圧部材21の中心から遠い外形までの距離21cと外形まで近い距離21dが異なっているため押圧部材21の現像剤袋16への侵入量も変化する。また図33(b)は断面が十字形の押圧部材21の断面図、図33(a)は十字形の押圧部材21を有する現像剤収納ユニット25の断面説明図である。図33に示すように押圧部材の中心から外形までの距離が等しい4本の凸部21eを有する場合、4本の凸部21eの外形(21c)は共に等しい。しかし、凸部21e以外に中心から近い外形の部分(距離21d)を有するため現像剤袋16への侵入量を変化させることができる。即ち、押圧部材21は、押圧部材21の回転中心に垂直な断面において、押圧部材21の回転中心から押圧部材の外形までの距離が異なる部分を有する回転部材とすることができる。
(Example of one pressing member)
Further, even if the pressing member 21 is not a separate component of the shaft portion 21a and the pressing sheet 21b, but a convex portion 21c that acts as the pressing sheet 21b is provided on the pressing member 21 as the same component as shown in FIG. 26A, the same applies. The developer can be discharged. When the pressing member 21 is composed of only the shaft portion 21a, the cross section of the shaft portion 21a is polygonal (FIG. 26B) or a cam shape (FIG. 26) when viewed in a cross section perpendicular to the center of rotation. Even when (c)) is provided, the developer bag 16 can be pressed against the frame 29 to be deformed. This is because when the pressing member 21 is arranged so as to be in contact with at least the developing agent bag 16, the distance of the pressing member 21 from the center of rotation to the outer shape changes, so that the amount of the pressing member 21 penetrating into the developing agent bag 16 also changes. Is. That is, the developer bag 16 can be deformed by the rotation of the pressing member 21 unless the axis has a circular cross section having a rotation axis at the center. As shown in FIG. 26, since the distance 21c from the center of the pressing member 21 to the outer shape and the distance 21d close to the outer shape are different, the amount of penetration of the pressing member 21 into the developing agent bag 16 also changes. 33 (b) is a cross-sectional view of the pressing member 21 having a cross-shaped cross section, and FIG. 33 (a) is a cross-sectional explanatory view of the developer storage unit 25 having the cross-shaped pressing member 21. As shown in FIG. 33, when the four convex portions 21e have the same distance from the center of the pressing member to the outer shape, the outer shapes (21c) of the four convex portions 21e are the same. However, since it has an outer shape portion (distance 21d) close to the center other than the convex portion 21e, the amount of penetration into the developer bag 16 can be changed. That is, the pressing member 21 can be a rotating member having a portion of the cross section perpendicular to the rotation center of the pressing member 21 in which the distance from the rotation center of the pressing member 21 to the outer shape of the pressing member is different.

このように押圧部材21により現像剤袋16は押される事(矢印J)で枠体29に押しつけられて変形して内容積が減少し内部の現像剤が押し出されて開口部35aより排出される(矢印I)。 In this way, when the developer bag 16 is pushed by the pressing member 21 (arrow J), it is pressed against the frame body 29 and deformed to reduce the internal volume, and the internal developer is pushed out and discharged from the opening 35a. (Arrow I).

また画像形成時の姿勢において押圧部材21の軸部21a(=20)は現像剤袋16の重力方向下方にあり現像剤袋16と接している。そして押圧部材21の軸部21a(=20)は断面形状が四角であり、断面形状が丸ではないため軸部21a(=20)の回転により現像剤袋16への軸部21a(=20)の侵入量は前述のように周期的に変化する。前記現像剤袋16への軸部21a(=20)の侵入量が変化することによっても現像剤袋16の容積を変化させ、また振動させることができて排出性が向上できる。 Further, in the posture at the time of image formation, the shaft portion 21a (= 20) of the pressing member 21 is below the developer bag 16 in the direction of gravity and is in contact with the developer bag 16. Since the shaft portion 21a (= 20) of the pressing member 21 has a square cross-sectional shape and the cross-sectional shape is not round, the shaft portion 21a (= 20) to the developing agent bag 16 is rotated by the rotation of the shaft portion 21a (= 20). The amount of invasion of is changed periodically as described above. The volume of the developer bag 16 can also be changed and vibrated by changing the amount of penetration of the shaft portion 21a (= 20) into the developer bag 16, and the discharge property can be improved.

さらには、押圧部材21に押圧シート21bが固定された構成ならば、現像剤袋16に対して押圧シート21bが撓んだ状態で接触している為に、現像剤袋16が変形した場合であっても、現像剤袋16と押圧部材21が接触しないという状態にならない。そのため、排出効果を維持する事が可能である。また、可撓性を有する押し圧シート21bを有する構成でなくても、凸部21cを可撓性を有するような薄いシート状にし、現像剤袋16に接触するのに充分な長さを有するようにしても上述と同様に排出効果を維持する事が可能である。 Further, if the pressing sheet 21b is fixed to the pressing member 21, the developing agent bag 16 is deformed because the pressing sheet 21b is in contact with the developing agent bag 16 in a bent state. Even if there is, the developing agent bag 16 and the pressing member 21 do not come into contact with each other. Therefore, it is possible to maintain the discharge effect. Further, even if the structure does not have the flexible pressing sheet 21b, the convex portion 21c is made into a thin sheet having flexibility and has a sufficient length to come into contact with the developer bag 16. Even so, it is possible to maintain the discharge effect in the same manner as described above.

<押圧部材と現像剤袋内の現像剤循環概要>
以上、前記押圧部材21の作用効果として、トナー排出について説明したが次に前記押圧部材21の別の作用効果である現像剤袋内の現像剤循環作用について図17を用いて説明する。
<Outline of developing agent circulation in pressing member and developing agent bag>
The toner discharge has been described above as the action and effect of the pressing member 21, but next, the developer circulation action in the developing agent bag, which is another action and effect of the pressing member 21, will be described with reference to FIG.

図17に示す様に開封部材20の回転が進み押圧シート21bが現像剤袋16から離れる。この時現像剤袋16は可撓性を有しているため収納する現像剤の重さで押圧される前の状態に回復しようとする(矢印K)。そしてまた押圧シート21bも回転し、図16で示すように現像剤袋16を第二の枠体18に押し現像剤袋16が変形することで開口部35a付近以外の現像剤も動かされる、この現像剤の動きにより現像剤袋16内での現像剤の循環作用が起きるのである。すなわち、現像剤袋16の変形作用が、現像剤袋16内の現像剤を動かすことで、現像剤袋16内の現像剤循環作用を起こすのである。また、現像剤袋の変形振幅と現像剤循環作用は比例関係にある。 As shown in FIG. 17, the opening member 20 rotates and the pressing sheet 21b separates from the developer bag 16. At this time, since the developer bag 16 has flexibility, it tries to recover to the state before being pressed by the weight of the developer to be stored (arrow K). The pressing sheet 21b also rotates, and as shown in FIG. 16, the developer bag 16 is pushed against the second frame 18, and the developer bag 16 is deformed to move the developer other than the vicinity of the opening 35a. The movement of the developer causes the developer to circulate in the developer bag 16. That is, the deforming action of the developer bag 16 causes the developer circulating action in the developer bag 16 by moving the developer in the developer bag 16. Further, the deformation amplitude of the developing agent bag and the developing agent circulating action are in a proportional relationship.

(開口部が大きな一つの開口部である場合、長手方向への引きはがしの例)
図50は大きな一つの開口部16aを有する現像剤袋16を示した図である。トナーを排出するための開口部は、図3で示すような複数の開口部35aの構成のみならず、図50で示すような大きな一つの開口部16aを有する構成でも押圧シート21bに押圧される事で現像剤袋16内部からトナーを排出できる。
(Example of peeling in the longitudinal direction when the opening is one large opening)
FIG. 50 is a diagram showing a developer bag 16 having one large opening 16a. The opening for discharging the toner is pressed by the pressing sheet 21b not only in the configuration of a plurality of openings 35a as shown in FIG. 3 but also in the configuration having one large opening 16a as shown in FIG. 50. As a result, toner can be discharged from the inside of the developer bag 16.

なおこの場合は封止部材19を開口部の長い方向(矢印方向)へユーザーもしくは不図示の巻き取り機構で引きはがすことで開封しても良い(図51)。 In this case, the sealing member 19 may be opened by peeling it off in the long direction (arrow direction) of the opening by a user or a winding mechanism (not shown) (FIG. 51).

(長手方向への押圧)
また押圧方向が現像ローラの回転軸方向へ押圧する場合について述べる。図52は現像ローラ13の回転軸方向に対して垂直方向に見た概略説明図である。図52では開封部材20は矢印Jと矢印J1方向に往復移動可能に枠体29に支持されており、画像形成装置B本体からの駆動により往復移動する。
(Pressure in the longitudinal direction)
A case where the pressing direction is the direction of the rotation axis of the developing roller will be described. FIG. 52 is a schematic explanatory view seen in the direction perpendicular to the rotation axis direction of the developing roller 13. In FIG. 52, the opening member 20 is supported by the frame body 29 so as to be reciprocally movable in the directions of the arrows J and J1, and is reciprocated by being driven from the image forming apparatus B main body.

次に押圧部材21の動きと現像剤袋16内部のトナーの排出動作について図52を用いて述べる。押圧部材21は矢印Jの方向へ動いて現像剤袋16を押圧する(図52(b))。この押圧により現像剤袋16は枠体29の側面29aに押しつけられる様に変形される。また押圧部材21は矢印Jと反対方向(矢印J1方向)にも動き、現像剤袋16は自らの可撓性により図52(a)の状態へと戻る。このように押圧部材21の押圧による現像剤袋16の収縮と、現像剤袋16可撓性による回復を繰り返しトナーを排出する。また前記作用により現像剤袋16自体が動くため現像剤袋16が振動し、この振動によっても現像剤袋16内部の現像剤が開口部35aから排出される(矢印I)。また押圧部材21は回転するため繰り返し現像剤袋16を押圧させることができる。 Next, the movement of the pressing member 21 and the toner discharge operation inside the developer bag 16 will be described with reference to FIG. 52. The pressing member 21 moves in the direction of arrow J to press the developer bag 16 (FIG. 52 (b)). By this pressing, the developer bag 16 is deformed so as to be pressed against the side surface 29a of the frame body 29. Further, the pressing member 21 moves in the direction opposite to the arrow J (direction of the arrow J1), and the developer bag 16 returns to the state shown in FIG. 52 (a) due to its own flexibility. In this way, the shrinkage of the developing agent bag 16 by pressing the pressing member 21 and the recovery by the flexibility of the developing agent bag 16 are repeated to discharge the toner. Further, since the developer bag 16 itself moves due to the above action, the developer bag 16 vibrates, and the developer inside the developer bag 16 is also discharged from the opening 35a by this vibration (arrow I). Further, since the pressing member 21 rotates, the developer bag 16 can be repeatedly pressed.

(真空成形)
実施例2として、実施例1の現像剤袋16の代わりに現像剤収納部材34を用いたものである。現像剤収納部材34は、シート状の素材を真空成形、圧空成形、プレス成形により形つくったものを使用したものである。開封部材を有した現像剤収納容器30は実施例1と同様に現像剤収納部材34と、封止部材19と、開封部材20と、第一の枠体17、第二の枠体18と、を有している。なお開封部材20は実施例1と同様に押圧部材21の機能と現像剤の攪拌機能とを兼ね備えた部材となっている。
(Vacuum forming)
As the second embodiment, the developer storage member 34 is used instead of the developer bag 16 of the first embodiment. The developer storage member 34 is a sheet-shaped material formed by vacuum forming, compressed air forming, or press forming. The developer storage container 30 having the opening member includes the developing agent storage member 34, the sealing member 19, the opening member 20, the first frame body 17, the second frame body 18, and the same as in the first embodiment. have. The opening member 20 is a member having both the function of the pressing member 21 and the function of stirring the developer, as in the first embodiment.

(現像剤袋の構成)
図18、図29(c)で示すように現像剤収納部材34の構成は真空成形、圧空成形、プレス成形により形つくられた可撓性を有する可撓性容器である成形部34aと、シート状の通気部34bから構成される。ここで成形部34aと通気部34bの接合は熱溶着、レーザー溶着、接着剤、接着テープ等がある。現像剤収納部材34に通気性をもたせる理由としては実施例1と同じで製造時、物流時および保管時に対応するためである。
(Structure of developer bag)
As shown in FIGS. 18 and 29 (c), the developer storage member 34 is composed of a molding portion 34a, which is a flexible container formed by vacuum forming, compressed air forming, and press forming, and a sheet. It is composed of a ventilated portion 34b. Here, the bonding between the molded portion 34a and the ventilation portion 34b includes heat welding, laser welding, an adhesive, an adhesive tape, and the like. The reason why the developer storage member 34 is made breathable is that it corresponds to the same as in Example 1 at the time of manufacturing, distribution, and storage.

成形部34aの素材としてABS・PMMA・PC・PP・PE・HIPS・PET・PVCなどや、これらの複合多層材料などが好ましい。また成形部34aの厚みは成形前のシート状の厚みで0.1〜1mm程度のものが好ましい。成形部34aの材料や厚みはコストや製品仕様、製造条件等により適宜選定すればよい。 As the material of the molded portion 34a, ABS, PMMA, PC, PP, PE, HIPS, PET, PVC and the like, and these composite multilayer materials are preferable. The thickness of the molded portion 34a is preferably a sheet-like thickness of about 0.1 to 1 mm before molding. The material and thickness of the molded portion 34a may be appropriately selected depending on the cost, product specifications, manufacturing conditions, and the like.

成形部34aは、成形部34aの外周34cで通気部34bと接合されている。現像剤収納部材34は、内部に現像剤を収納している。また外周部34cの一部に現像剤収納部材34の固定部16d(被固定部)が設けられている。成形部34aの形状は枠体17、18の内側に沿った形状となっている(図19)。 The molding portion 34a is joined to the ventilation portion 34b at the outer circumference 34c of the molding portion 34a. The developer storage member 34 stores the developer inside. Further, a fixing portion 16d (fixed portion) of the developer storage member 34 is provided on a part of the outer peripheral portion 34c. The shape of the molded portion 34a is along the inside of the frames 17 and 18 (FIG. 19).

そして現像剤を収納した現像剤収納容器26は現像剤収納部材34と、現像剤収納部材34の排出部35を開封可能に覆い現像剤収納部材34内部にトナーを封止している封止部材19から構成される。 The developer storage container 26 containing the developer covers the developer storage member 34 and the discharge portion 35 of the developer storage member 34 so as to be openable, and seals toner inside the developer storage member 34. It is composed of 19.

開封部材を有した現像剤収納容器30は、前記封止部材19を現像剤収納部材34から開封する開封部材20と前記現像剤を収納した現像剤収納容器26から構成される。 The developer storage container 30 having an opening member is composed of an opening member 20 that opens the sealing member 19 from the developer storage member 34 and a developer storage container 26 that stores the developer.

現像装置38は、開封部材を有した現像剤収納容器30と、現像手段である現像ローラ13、現像ブレード15とこれらを支持する第一の枠体17と第二の枠体18から構成される。 The developing device 38 is composed of a developing agent storage container 30 having an opening member, a developing roller 13 as a developing means, a developing blade 15, a first frame body 17 supporting these, and a second frame body 18. ..

ここで排出部35は成形部34aに設けられており、排出部の構成も実施例1と同様で現像剤収納部材34の開封が進行する開封方向Eに対して略垂直な方向Fに複数の開口部35aおよび複数の開口部35aを定義する連結部35bを有している。即ち、複数の開口部35aは、開封方向Eに垂直な方向Fにずれて配置されている。また、複数の開口部35aは開封部材20の回転軸の方向にずれて配置されている。また、被係合部19bは、複数の開口部35aが並んでいる方向と略垂直方向の封止部材19の一端側に設けられている。また、開封部材20は、複数の開口部35aが並んでいる方向と略垂直方向の封止部材19の一端側に設けられている。固定部は実施例1の第一の固定部16dに相当する開封に必要な固定部16dを有している。成形部34aにより現像剤収納部材34自体が形を保とうとする事と、現像剤収納部材34が枠体に沿った形状であるため枠体に全体的に支えられ現像剤収納部材34が現像剤供給ローラ23や現像ローラ13の方へ移動しにくくなる。 Here, the discharge unit 35 is provided in the molding unit 34a, and the configuration of the discharge unit is the same as in the first embodiment, and a plurality of discharge portions 35 are provided in directions F substantially perpendicular to the opening direction E in which the opening of the developer storage member 34 proceeds. It has an opening 35a and a connecting portion 35b that defines a plurality of openings 35a. That is, the plurality of openings 35a are arranged so as to be offset in the direction F perpendicular to the opening direction E. Further, the plurality of openings 35a are arranged so as to be offset in the direction of the rotation axis of the opening member 20. Further, the engaged portion 19b is provided on one end side of the sealing member 19 in a direction substantially perpendicular to the direction in which the plurality of openings 35a are arranged. Further, the opening member 20 is provided on one end side of the sealing member 19 in a direction substantially perpendicular to the direction in which the plurality of openings 35a are lined up. The fixing portion has a fixing portion 16d necessary for opening, which corresponds to the first fixing portion 16d of the first embodiment. The developer storage member 34 itself tries to maintain its shape by the molding unit 34a, and since the developer storage member 34 has a shape along the frame body, it is totally supported by the frame body and the developer storage member 34 is the developer. It becomes difficult to move toward the supply roller 23 and the developing roller 13.

次に固定部の固定の手段としては熱溶着、超音波溶着、接着、枠体間への挟み込み、熱カシメ、超音波カシメ、穴と凸による引っ掛け等が挙げられる。
なお封止部材19、開封部材20の構成は実施例1と同じである。
Next, as means for fixing the fixing portion, heat welding, ultrasonic welding, adhesion, sandwiching between frames, thermal caulking, ultrasonic caulking, hooking by holes and protrusions, and the like can be mentioned.
The configurations of the sealing member 19 and the opening member 20 are the same as those in the first embodiment.

<現像剤収納袋の開封概要>
次に現像剤収納袋16の開封について述べる。ここで実施例1と固定部、固定部の位置はほぼ同じであり力の関係も同じである。よって開封工程も同じである。(図7、図8)実施例2で開口部35aは成形部34aに配置されているが、成形部34aも実施例1と同様に可撓性であり、開封時の力の関係は実施例1と同じである。よって実施例2においても開封が進行する方向Eの方向で、第一の接合部22aと第二の接合部22bとを複数の連結部35bが橋渡ししている。そのため第一の接合部22aの開封を終えて第二の接合部22aが開封する時に封止部材19を現像剤収納部材34から剥す力を伝えることができる。そのため第二の接合部22bも開封が可能となるのである。
<Outline of opening the developer storage bag>
Next, opening of the developer storage bag 16 will be described. Here, the positions of the fixed portion and the fixed portion are almost the same as those of the first embodiment, and the relationship of force is also the same. Therefore, the opening process is the same. (FIGS. 7 and 8) In Example 2, the opening 35a is arranged in the molding portion 34a, but the molding portion 34a is also flexible as in Example 1, and the relationship of the forces at the time of opening is the Example. It is the same as 1. Therefore, also in the second embodiment, a plurality of connecting portions 35b bridge the first joint portion 22a and the second joint portion 22b in the direction E in which the opening proceeds. Therefore, when the first joint portion 22a is opened and the second joint portion 22a is opened, the force for peeling the sealing member 19 from the developer storage member 34 can be transmitted. Therefore, the second joint portion 22b can also be opened.

開封後の現像剤排出構についても実施例1と同様である。前述の現像剤収納部材34から封止部材19を開封すると、まず開口部35aは現像剤収納部材34の下方に配置してあるため重力が作用すると同時に開封時の開口部35aの位置が動くことで、現像剤が排出される。また、現像剤収納部材34の振動等により開口部35a付近の現像剤が排出される。ここで開封部材20は押圧部材21を兼ねている。また押圧部材21の回転軸方向に垂直な断面で押圧部材21の断面は四角形をしており実施例1で説明したように押圧部材21の回転により現像剤の排出が促進される(図19)。 The same applies to the developer discharging structure after opening as in Example 1. When the sealing member 19 is opened from the developer storage member 34 described above, first, since the opening 35a is arranged below the developer storage member 34, gravity acts and the position of the opening 35a at the time of opening moves at the same time. Then, the developer is discharged. Further, the developer near the opening 35a is discharged due to vibration of the developer storage member 34 or the like. Here, the opening member 20 also serves as a pressing member 21. Further, the cross section of the pressing member 21 is quadrangular in the cross section perpendicular to the rotation axis direction of the pressing member 21, and the rotation of the pressing member 21 promotes the discharge of the developing agent as described in Example 1 (FIG. 19). ..

ここで現像剤収納部材34の開口部35aが設けられている面と同じ面を押圧部材21は接して押圧している。なお現像剤収納部材34は開口部35aが設けられている面と他の面とは屈曲部34dを挟んで複数の面から構成されている。このように、押圧部材21が開口部35aの近傍の面を押圧する構成により現像剤の排出がより促進される。 Here, the pressing member 21 contacts and presses the same surface as the surface of the developer storage member 34 where the opening 35a is provided. The developer storage member 34 is composed of a plurality of surfaces with the bent portion 34d sandwiched between the surface provided with the opening 35a and the other surface. In this way, the structure in which the pressing member 21 presses the surface in the vicinity of the opening 35a further promotes the discharge of the developer.

上記のような構成をとることにより実施例1の効果に加えて以下のような効果がある。 By adopting the above configuration, in addition to the effect of Example 1, the following effects are obtained.

(真空成形の効果)
現像剤収納部材34の一部を真空成形により形がつくられていることにより以下の効果がある。
(Effect of vacuum forming)
The following effects are obtained by forming a part of the developer storage member 34 by vacuum forming.

第一の効果として現像剤収納部材34を枠体の内側に沿った形状にできる。そのため実施例1で示すような袋形態では枠体の隅部にまで袋を入れる事は難しく、現像剤収納部材34と第一の枠体17に隙間ができてそのスペースが有効な現像剤収納スペースとならない。 As the first effect, the developer storage member 34 can be shaped along the inside of the frame. Therefore, in the bag form as shown in the first embodiment, it is difficult to put the bag even in the corner of the frame body, and a gap is formed between the developer storage member 34 and the first frame body 17, and the space is effective for storing the developer. It doesn't become a space.

第二の効果として現像剤収納部材34が枠体に沿った形状にできるので枠体への組み込みか容易となる。これは組み込み時に枠体に押し込んで形状を合わせる事をしなくて済むためである。 As a second effect, since the developer storage member 34 can be formed into a shape along the frame body, it can be easily incorporated into the frame body. This is because it is not necessary to push it into the frame to match the shape when assembling.

第三の効果として現像剤収納部材34が現像剤供給ローラ23や現像ローラ13の方へ移動しにくくなる。これは、真空成形により前述のように現像剤収納部材34自体が形を保とうとする事と、現像剤収納部材34が枠体に沿った形状である事から、現像剤収納部材34が枠体に全体的に支えられるためである。そのため実施例1で示すような像剤供給ローラ23や現像ローラ13の方へ移動を規制する為の第二の固定部を廃止することが可能となる。 As a third effect, the developer storage member 34 becomes difficult to move toward the developer supply roller 23 and the developing roller 13. This is because the developer storage member 34 itself tries to maintain its shape by vacuum forming as described above, and the developer storage member 34 has a shape along the frame body, so that the developer storage member 34 is a frame body. This is because it is supported as a whole. Therefore, it is possible to abolish the second fixing portion for restricting the movement toward the image agent supply roller 23 and the developing roller 13 as shown in the first embodiment.

また図19で示すように開口部35aが設けられている面と同じ面34fを押す効果は次のようなものがある。現像剤収納部材34は真空成形により複数の面で構成されている。よって複数の面と面との間に屈曲部34dが存在している。現像剤収納部材34の面は屈曲部で囲まれた部分として定義する。ここで開口部35aを含む面34fを押圧した場合と開口部35aを含まない面34eを押圧した場合との効果の差を説明する。面34eは、開口部35aを含む面34fに対し屈曲部34dを挟んだ面である。押圧部材21により押圧された面34eが受ける力は屈曲部34dを経由する。開口部35aを含む面に届く前に屈曲部34dで大きく減衰してしまう。そのため直接開口部35aを有する面34fを押圧した場合に比べ開口部35aを動かす力も小さくなる。そのため開口部35aを動かして現像剤を排出する作用が小さくなる。よって押圧部材21は開口部35aを含む面34fを押圧した方が効率よく内部の現像剤の排出性を向上でき、また現像剤の滞留を防止できるのである。このように開封部材20が兼ねている押圧部材21の回転により現像剤収納部材34を第二の枠体18に押しつけるように押圧することで現像剤収納部材34を変形させて開口部35aの位置を変化させて内部の現像剤を排出する。また開口部35aも複数あるため一つの開口部より排出しやすい。また開口部35aは画像形成時の姿勢で重力方向下向きに配置されているので現像剤を排出しやすい。 Further, as shown in FIG. 19, the effect of pushing the same surface 34f as the surface provided with the opening 35a is as follows. The developer storage member 34 is formed of a plurality of surfaces by vacuum forming. Therefore, the bent portion 34d exists between the plurality of surfaces. The surface of the developer storage member 34 is defined as a portion surrounded by a bent portion. Here, the difference in effect between the case where the surface 34f including the opening 35a is pressed and the case where the surface 34e not including the opening 35a is pressed will be described. The surface 34e is a surface that sandwiches the bent portion 34d with respect to the surface 34f including the opening 35a. The force received by the surface 34e pressed by the pressing member 21 passes through the bent portion 34d. Before reaching the surface including the opening 35a, the bending portion 34d greatly attenuates. Therefore, the force for moving the opening 35a is smaller than that when the surface 34f having the opening 35a is directly pressed. Therefore, the action of moving the opening 35a to discharge the developer is reduced. Therefore, when the pressing member 21 presses the surface 34f including the opening 35a, the dischargeability of the developing agent inside can be efficiently improved, and the retention of the developing agent can be prevented. By rotating the pressing member 21 that also serves as the opening member 20 to press the developing agent storage member 34 against the second frame 18, the developing agent storage member 34 is deformed and the position of the opening 35a is formed. Is changed to discharge the developer inside. Further, since there are a plurality of openings 35a, it is easier to discharge than one opening. Further, since the opening 35a is arranged downward in the direction of gravity in the posture at the time of image formation, the developer can be easily discharged.

(開封部材、押圧部材、撹拌部材がそれぞれ別の例)
図35、36を用いて押圧部材21と開封部材20、撹拌部材41がそれぞれ別の部材である場合の例を示す。図35は開封前、図36は開封後の概略断面図である。ここで押圧部材21と開封部材20、撹拌部材41がそれぞれ回転可能に第一の枠体17に支持されており、画像形成装置B本体からの駆動を受けて回転する。開封工程は開封部材20が矢印C方向に回転することで封止部材19が巻き取られ開口部35aが露出する。また押圧部材21の回転に伴い現像剤収納部材34を押圧することで現像剤収納部材34を変形させ現像剤収納部材34内部からのトナーの排出を促す。また撹拌部材41が回転することで現像剤収納部材34から排出されたトナーを撹拌する事ができる。このように押圧部材21と開封部材20、撹拌部材41がそれぞれ別の部材である為に必要に応じてそれぞれの回転方向、回転速度、回転時間、等を設定することができる。
(Opening member, pressing member, stirring member are different examples)
35 and 36 show an example in which the pressing member 21, the opening member 20, and the stirring member 41 are separate members. FIG. 35 is a schematic cross-sectional view before opening, and FIG. 36 is a schematic cross-sectional view after opening. Here, the pressing member 21, the opening member 20, and the stirring member 41 are rotatably supported by the first frame body 17, and rotate under the drive of the image forming apparatus B main body. In the opening step, the sealing member 19 is wound up by rotating the opening member 20 in the direction of arrow C, and the opening 35a is exposed. Further, by pressing the developer storage member 34 with the rotation of the pressing member 21, the developer storage member 34 is deformed to promote the discharge of toner from the inside of the developer storage member 34. Further, the toner discharged from the developer storage member 34 can be agitated by rotating the agitating member 41. In this way, since the pressing member 21, the opening member 20, and the stirring member 41 are separate members, their respective rotation directions, rotation speeds, rotation times, and the like can be set as necessary.

(開封動作が回転以外の例)
図37、図38を用いて開封部材20が回転ではなく、固定部18aから離れる方向に移動し開口部35aを露出する場合の例を示す。ここで開封部材20の両端部は第一の枠体17にスライド可能に支持されている。また開封部材20は画像形成装置B本体もしくはユーザーの操作により動かす事が可能となっている。ここで開封部材20が矢印C2方向に移動する。この開封部材20の移動に伴い封止部材19が矢印D方向に引っ張られ溶着部22a、22bを剥がし開口部35aを露出させる。なおスライド方向C2は直線に限らず円弧状などでも、開封部材20が固定部19aから離れる方向に移動可能であれば良い。
(Example of opening operation other than rotation)
37 and 38 show an example in which the opening member 20 does not rotate but moves in a direction away from the fixing portion 18a to expose the opening 35a. Here, both ends of the opening member 20 are slidably supported by the first frame body 17. Further, the opening member 20 can be moved by the operation of the image forming apparatus B main body or the user. Here, the opening member 20 moves in the direction of arrow C2. As the opening member 20 moves, the sealing member 19 is pulled in the direction of arrow D to peel off the welded portions 22a and 22b to expose the opening portion 35a. The sliding direction C2 is not limited to a straight line but may be arcuate, as long as the opening member 20 can move away from the fixed portion 19a.

また開封部材20は開封後にも繰り返し往復運動を行うことで排出時の押圧部材21として兼用する事や、排出後のトナーの撹拌部材としてとして兼用しても良い(図45)。 Further, the opening member 20 may be used as a pressing member 21 at the time of discharging by repeatedly performing a reciprocating motion even after opening, or may also be used as a stirring member for toner after discharging (FIG. 45).

このように開封部材20の動作を回転以外でも封止部材19を移動可能に構成できるため必要に応じ適宜開封部材20の動作する構成を選択可能となる。 In this way, since the sealing member 19 can be configured to be movable other than the rotation of the opening member 20, the configuration in which the opening member 20 operates can be appropriately selected as needed.

(ユーザーによる開封動作、画像形成装置による開封動作の例)
開封部材20を用いずに封止部材19の一部、もしくは封止部材19に連結した部材をユーザーが引っ張る事により開口部35aを露出させても良い。図39、図40に示すように封止部材19が第一の枠体の開口部17aを通りプロセスカートリッジAの外側に露出している部分(以下封止部材把持部19eとする)を有した構成となっている。なお開口部17aにはトナーが外部に漏れないようにするためのシール部材(不図示)を有している。封止部材作用部19eをユーザーがプロセスカートリッジAの使用前に矢印C3方向に移動させる事により開口部35a露出することができる。また封止部材把持部19eに把持しやすいように別部材を設けても良い。
(Examples of opening operation by the user and opening operation by the image forming device)
The opening 35a may be exposed by the user pulling a part of the sealing member 19 or a member connected to the sealing member 19 without using the opening member 20. As shown in FIGS. 39 and 40, the sealing member 19 has a portion (hereinafter referred to as a sealing member gripping portion 19e) that passes through the opening 17a of the first frame and is exposed to the outside of the process cartridge A. It is composed. The opening 17a has a sealing member (not shown) for preventing toner from leaking to the outside. The opening 35a can be exposed by the user moving the sealing member working portion 19e in the direction of arrow C3 before using the process cartridge A. Further, another member may be provided on the sealing member gripping portion 19e so as to be easily gripped.

なおユーザーの手を煩わせずに封止部材把持部19eを画像形成装置B本体に駆動手段を設け引っ張り開口部35aを露出させても良い。またプロセスカートリッジAを画像形成装置Bに装着時の装着動作で封止部材把持部19eを移動させ開口部35aを露出させても良い。そして開口部35aを露出させた後は押圧部材21を回転させて押圧シート21bで現像剤収納部材34を押圧し内包した現像剤を排出させる(図55)。 It should be noted that the sealing member gripping portion 19e may be provided with a driving means in the image forming apparatus B main body to expose the opening 35a without bothering the user. Further, the sealing member gripping portion 19e may be moved to expose the opening 35a by the mounting operation when the process cartridge A is mounted on the image forming apparatus B. Then, after the opening 35a is exposed, the pressing member 21 is rotated and the developing agent storage member 34 is pressed by the pressing sheet 21b to discharge the contained developer (FIG. 55).

(開口部がハーフカットでつくられる例)
図45に示すようにハーフカットを用いて開口部35aをつくる例を述べる。図45は開口部35aがつくられる工程を断面で示した概略図である。図45の(a)、(b)、(c)の順で加工される様子を示す。また図45の上方から見た図が図46である。
(Example of opening made by half cut)
An example of making an opening 35a by using a half cut as shown in FIG. 45 will be described. FIG. 45 is a schematic view showing a cross-sectional view of the process of forming the opening 35a. The state of processing in the order of (a), (b), and (c) of FIG. 45 is shown. Further, a view seen from above of FIG. 45 is FIG. 46.

まず可撓性容器である現像剤袋16と封止部材19が前述のように易開封性を有するように接合されて2層構造になっている(図45(a))
次に刃物等の治具で現像剤袋16の層を後の開口部35aとなる穴形状に切断する(図45(b)、図46(a))。これにより現像剤袋16と封止部材19の2層で構成されたものが、現像剤袋16の層が切断された(ハーフカットされた)状態となる。
First, the developer bag 16 which is a flexible container and the sealing member 19 are joined so as to have easy-opening property as described above to have a two-layer structure (FIG. 45A).
Next, the layer of the developer bag 16 is cut into a hole shape to be the opening 35a later with a jig such as a cutting tool (FIGS. 45 (b) and 46 (a)). As a result, what is composed of two layers of the developer bag 16 and the sealing member 19 is in a state in which the layer of the developer bag 16 is cut (half-cut).

次に開封時の様子を図45(d)、(e)、(f)と図46を用いて示す。前述のハーフカットされた現像剤袋16と封止部材19の2層のうち封止部材19を開封部材20により矢印Dの方向に引っ張る(図45(d))。開封部材20が矢印D方向に引っ張られるに連れて開口部35aが露出し始める図45(e)、図46(b)。この時現像剤袋16の切断された中の部分16wは封止部材19と共に現像剤袋16から離れていく。そして更に封止部材19が移動して現像剤袋16と離れて開口部35aが露出する。このようなハーフカットを用いて開口部35aを設ける事により製造工程で開口部35aの部分の端片をごみとして処理する必要が無くなる。また製造時にプロセスカートリッジA内に開口部35aの部分の端片が混入することが無いように管理する事を省く事が可能となる。 Next, the state at the time of opening is shown with reference to FIGS. 45 (d), (e), (f) and FIG. 46. Of the two layers of the half-cut developer bag 16 and the sealing member 19, the sealing member 19 is pulled by the opening member 20 in the direction of arrow D (FIG. 45 (d)). 45 (e) and 46 (b) show that the opening 35a begins to be exposed as the opening member 20 is pulled in the direction of arrow D. At this time, the cut portion 16w of the developer bag 16 separates from the developer bag 16 together with the sealing member 19. Then, the sealing member 19 further moves and separates from the developer bag 16 to expose the opening 35a. By providing the opening 35a using such a half cut, it is not necessary to treat the end piece of the opening 35a as dust in the manufacturing process. Further, it is possible to omit the management so that the end pieces of the opening 35a are not mixed in the process cartridge A at the time of manufacturing.

(補給系構成に用いた例)
現像剤袋16と現像剤袋16を覆う補給枠体42を一体的に補給ユニット43としてプロセスカートリッジA2に取り外し可能に構成した例を述べる。図47、図48で示すように補給ユニット43は補給枠体42と開封部材20と封止部材19を有した現像剤袋16から構成される。またプロセスカートリッジA2は、感光体ドラム11の周囲に帯電手段である帯電ローラ12、そしてクリーニング手段として弾性を有するクリーニングブレード14を有するクリーナーユニット24、現像装置38を備えている。現像装置38は、現像手段である現像ローラ13と現像ブレード15、現像剤供給ローラ23、そして補給ユニット43が着脱可能に構成されている。
(Example used for supply system configuration)
An example will be described in which the developer bag 16 and the replenishment frame 42 covering the developer bag 16 are integrally configured as a replenishment unit 43 so as to be removable from the process cartridge A2. As shown in FIGS. 47 and 48, the replenishment unit 43 is composed of a replenishment frame body 42, an opening member 20, and a developer bag 16 having a sealing member 19. Further, the process cartridge A2 includes a charging roller 12 as a charging means, a cleaner unit 24 having an elastic cleaning blade 14 as a cleaning means, and a developing device 38 around the photoconductor drum 11. The developing device 38 is configured to have a developing roller 13 and a developing blade 15, a developer supply roller 23, and a replenishment unit 43, which are developing means, detachably attached.

この補給ユニット43をプロセスカートリッジA2に装着し、一体的に画像形成装置Bの本体内へ着脱可能にしている。なお、プロセスカートリッジA2を画像形成装置B本体内に装着したままで補給ユニット43を交換可能としてもよい。 The replenishment unit 43 is attached to the process cartridge A2 and integrally removable into the main body of the image forming apparatus B. The replenishment unit 43 may be replaceable while the process cartridge A2 is mounted in the image forming apparatus B main body.

ここで開封部材20が矢印Cの方向に回転する事で封止部材19は矢印Dの方向へ移動して開口部35aを露出する。 Here, as the opening member 20 rotates in the direction of arrow C, the sealing member 19 moves in the direction of arrow D to expose the opening 35a.

そして封止部材19を現像剤袋16より剥離後は開封部材20と兼用している押圧部材21で現像剤袋16を押圧しトナーを排出する(図49)。 Then, after the sealing member 19 is peeled off from the developer bag 16, the developer bag 16 is pressed by the pressing member 21 which is also used as the opening member 20, and the toner is discharged (FIG. 49).

このように現像剤袋16を内包した補給ユニット43を交換することでトナーを補給可能なプロセスカートリッジA2を提供できる。 By replacing the replenishment unit 43 containing the developer bag 16 in this way, the process cartridge A2 capable of replenishing toner can be provided.

(現像剤袋16内の現像剤循環作用活性化)
次に、図19、図41、図42、図43、図44を用いて現像剤袋16内の現像剤循環作用を活性化させる構成と作用について説明する。図41は、現像装置38の押圧部材21の回転中心軸に垂直な断面図である。
(Activation of developer circulation action in developer bag 16)
Next, the configuration and action of activating the developer circulation action in the developer bag 16 will be described with reference to FIGS. 19, 41, 42, 43, and 44. FIG. 41 is a cross-sectional view perpendicular to the rotation center axis of the pressing member 21 of the developing device 38.

実施例1で述べた様に、現像剤袋16内の現像剤循環は、現像剤袋16が変形することでおこることは先に述べた。ここで、実施例2で述べた成形品34を使用した場合、現像剤袋16の形状が、枠体17と同じ様な形状をとることが可能になることより図19に示す様に現像剤袋16と枠体17が密着する領域が増える。このことで押圧部材21による現像剤袋16の変形可能領域が制限され、結果現像剤袋内16の現像剤循環も制限される場合がある。従って、現像剤袋16内の現像剤循環作用がより必要な場合は、図41に示す様に現像剤袋16の開口を有する面34fと屈曲部34dを挟んで連続した面34eと、枠体17の間に隙間αを設ける。この隙間αは現像剤袋16を振幅させる量に応じて設定すれば良い。ここで、前記隙間αを押圧部材21による現像剤袋16の振幅以上の値に設定した時は、前述現像剤の循環作用は、現像剤袋16の振幅に比例するので現像剤の循環作用は最大限発揮される。しかし、この場合隙間αにより生じた容積分、現像剤の収容量が制限される。次に、前記隙間αを現像剤袋16の振幅未満に設定した場合は、現像剤の循環作用は制限されたものとなる。この場合は、前記現像剤袋16の振幅以上の隙間αを開けた場合に比べて、隙間αが減少した分現像剤の収納量を増やす方向に振り分ける事が可能になる。従って、前記隙間αの値は、求める現像剤袋16内の現像剤循環作用と、収納したい現像剤の量に応じて適宜設定すれば良い。また、図41に示す様に、開口を有する面34fと前記開口を有する面と相対する面34hの間に向けて、前記隙間αを小さくした構成としてもよい。つまり隙間αは、開口部を形成する面34fに近づくほど、大きくなるように構成されている。このような構成の方が、開口を有する面34fと屈曲部34dを挟んで連続した面34e全域に隙間αを設ける構成よりも、現像剤袋16内の現像剤循環と現像剤の収納量のバランスをより取りやすい構成とすることができる。なお屈曲部34dは、面取りで構成されたもの(図54(b))、また曲率が0に近い小さなもの(図54(a))から曲率が大きいもの(図54(c))まで適宜選定して良い。 As described in Example 1, it was described earlier that the developer circulation in the developer bag 16 occurs due to the deformation of the developer bag 16. Here, when the molded product 34 described in Example 2 is used, the shape of the developer bag 16 can be the same as that of the frame 17, so that the developer is as shown in FIG. The area where the bag 16 and the frame 17 are in close contact with each other increases. As a result, the deformable region of the developer bag 16 by the pressing member 21 is limited, and as a result, the circulation of the developer in the developer bag 16 may be limited. Therefore, when the developing agent circulation action in the developing agent bag 16 is more necessary, as shown in FIG. 41, a surface 34f having an opening of the developing agent bag 16 and a continuous surface 34e sandwiching the bent portion 34d and a frame body. A gap α is provided between 17. This gap α may be set according to the amount of amplitude of the developer bag 16. Here, when the gap α is set to a value equal to or larger than the amplitude of the developer bag 16 by the pressing member 21, the circulating action of the developer is proportional to the amplitude of the developer bag 16, so that the circulating action of the developer is It is maximized. However, in this case, the amount of the developer to be accommodated is limited by the volume generated by the gap α. Next, when the gap α is set to be less than the amplitude of the developer bag 16, the circulating action of the developer is limited. In this case, as compared with the case where a gap α having an amplitude or more of the developer bag 16 is opened, it is possible to distribute the developer bag in the direction of increasing the storage amount of the developer as the gap α is reduced. Therefore, the value of the gap α may be appropriately set according to the desired developer circulation action in the developer bag 16 and the amount of the developer to be stored. Further, as shown in FIG. 41, the gap α may be reduced toward the surface 34f having an opening and the surface 34h facing the surface having the opening. That is, the gap α is configured to become larger as it approaches the surface 34f forming the opening. In such a configuration, the developer circulation and the amount of the developer stored in the developer bag 16 are larger than the configuration in which the gap α is provided in the entire area of the continuous surface 34e sandwiching the curved surface 34f and the bent portion 34d. The configuration can be made easier to balance. The bent portion 34d is appropriately selected from a chamfered portion (FIG. 54 (b)) and a small one having a curvature close to 0 (FIG. 54 (a)) to a large curvature (FIG. 54 (c)). You can do it.

以上、押圧部材21の回転中心軸に垂直な断面における隙間αの構成について説明したが、次に図42、図43、図44を用いて、押圧部材21の回転中心軸と平行な方向の断面における隙間βの構成について説明する。図42は、現像剤収納容器30の斜視図である。図43は、図41に示すVV断面である。図44は、図41に示す枠体17のみをVVでカットした斜視図である。 The configuration of the gap α in the cross section perpendicular to the rotation center axis of the pressing member 21 has been described above. Next, using FIGS. 42, 43, and 44, the cross section in the direction parallel to the rotation center axis of the pressing member 21. The configuration of the gap β in the above will be described. FIG. 42 is a perspective view of the developer storage container 30. FIG. 43 is a VV cross section shown in FIG. 41. FIG. 44 is a perspective view in which only the frame body 17 shown in FIG. 41 is cut by VV.

図42に示す様に、開口を有する面34fと屈曲部34dを挟んで連続した面34eおよび34gは押圧部材21回転中心軸方向の両側と通気部34bと対向する面の3面ある。
ここで、図43に示す様に、押圧部材21の回転中心軸の長手方向の面34gと枠体17の間にそれぞれ隙間を設けている。隙間の設定の仕方は前述押圧部材の回転軸中心軸と垂直な断面と同様である。
As shown in FIG. 42, the surface 34f having an opening and the surfaces 34e and 34g continuous with the bent portion 34d sandwiched are three surfaces, one on both sides in the direction of the central axis of rotation of the pressing member 21 and the other on the surface facing the ventilation portion 34b.
Here, as shown in FIG. 43, a gap is provided between the surface 34g of the pressing member 21 in the longitudinal direction of the rotation center axis and the frame body 17, respectively. The method of setting the gap is the same as the cross section perpendicular to the center axis of the rotation axis of the pressing member.

また、現像剤循環作用については、実施例1で述べた作用と同様である。
以上、述べた様に現像剤袋16内の現像剤の循環をより活性化することが可能になる。
Further, the developing agent circulation action is the same as the action described in Example 1.
As described above, it is possible to further activate the circulation of the developer in the developer bag 16.

16 現像剤袋
16d 現像剤袋の第一の固定部
16e 現像剤袋の第二の固定部
17 第一の(現像)枠体
18 第二の(現像)枠体
18a 枠体の第一の固定部
18b 枠体の第二の固定部
18c 枠体の固定部
19 封止部材
19a 封止部
19b 被係合部
19d 返し部
20 開封部材
20a 力点部
20b 係合部
21 押圧部材
22 接合部
22a 第一の接合部
22b 第二の接合部
25 現像剤収納ユニット
26 現像剤を収納した現像剤収納容器
27 現像剤袋が第二の枠体へ押圧される部分
28 接合部
29 枠体
30 開封部材を有した現像剤収納容器
31 現像剤収納枠体
33 接合部
34 現像剤収納部材
34a 成形部
34e 開口部を含まない面
34f 開口部を有する面
35a 開口部
41 撹拌部材
42 補給枠体
43 補給ユニット
16 Developer bag 16d First fixing part of the developing agent bag 16e Second fixing part of the developing agent bag 17 First (developing) frame 18 Second (developing) frame 18a First fixing of the frame Part 18b Second fixing part of the frame body 18c Fixing part of the frame body 19 Sealing member 19a Sealing part 19b Engagement part 19d Return part 20 Opening member 20a Power point part 20b Engaging part 21 Pressing member 22 Joint part 22a First 1 joint 22b 2nd joint 25 Developer storage unit 26 Developer storage container containing developer 27 Part where the developer bag is pressed against the second frame 28 Joint 29 Frame 30 Opening member Developer storage container 31 Developer storage frame 33 Joint 34 Developer storage member 34a Molding part 34e Surface without opening 34f Surface with opening 35a Opening 41 Stirring member 42 Replenishment frame 43 Replenishment unit

Claims (10)

現像剤を収納するための空間と、前記空間から前記現像剤を排出するための複数の開口とが備えられた容器本体と、
前記複数の開口を覆うように、前記容器本体の外面に取り付けられた封止部材と、
前記空間の内側に向けて、前記容器本体を押圧するための押圧部材と、
回転部材と、
を備え、
前記容器本体は、前記空間の内側に向けて変形可能であり、かつ前記容器本体は、前記空間の外側に向けて変形可能であり、
前記封止部材は前記回転部材に取り付けられ、前記回転部材の回転によって前記容器本体から取り外されることを特徴とする現像剤収納ユニット。
A container body provided with a space for storing the developer and a plurality of openings for discharging the developer from the space.
A sealing member attached to the outer surface of the container body so as to cover the plurality of openings.
A pressing member for pressing the container body toward the inside of the space, and
With rotating members
With
The container body is deformable toward the inside of the space, and the container body, Ri deformable der outward of the space,
The sealing member is attached to said rotary member, a developer accommodating unit, wherein Rukoto removed from the container body by rotation of said rotary member.
前記押圧部材は、前記回転部材に取り付けられていることを特徴とする請求項に記載の現像剤収納ユニット。 The developer storage unit according to claim 1 , wherein the pressing member is attached to the rotating member. 前記容器本体は、第一の部材と、前記第一の部材に取り付けられる第二の部材とを含み、前記第一の部材に前記複数の開口が備えられ、前記第一の部材と前記第二の部材の間に前記空間が形成されるように、前記第二の部材が前記第一の部材に取り付けられることを特徴とする請求項1または2に記載の現像剤収納ユニット。 The container body includes a first member and a second member attached to the first member, and the first member is provided with the plurality of openings, and the first member and the second member are provided. The developer storage unit according to claim 1 or 2 , wherein the second member is attached to the first member so that the space is formed between the members. 前記第一の部材の材質と、前記第二の部材の材質が異なることを特徴とする請求項に記載の現像剤収納ユニット。 The developer storage unit according to claim 3 , wherein the material of the first member and the material of the second member are different. 前記第一の部材の通気性と、前記第二の部材の通気性が異なることを特徴とする請求項またはに記載の現像剤収納ユニット。 The developer storage unit according to claim 3 or 4 , wherein the air permeability of the first member and the air permeability of the second member are different. 前記第一の部材の通気性は、前記第二の部材の通気性よりも低いことを特徴とする請求項に記載の現像剤収納ユニット。 The developer storage unit according to claim 5 , wherein the air permeability of the first member is lower than the air permeability of the second member. 前記封止部材は、折り返し部が形成されるように、変形可能であることを特徴とする請求項1からのいずれか一項に記載の現像剤収納ユニット。 The developer storage unit according to any one of claims 1 to 6 , wherein the sealing member is deformable so that a folded portion is formed. 前記押圧部材は、前記容器本体から排出された前記現像剤を撹拌するように構成されることを特徴とする請求項1からのいずか一項に記載の現像剤収納ユニット。 The developer storage unit according to any one of claims 1 to 7 , wherein the pressing member is configured to agitate the developer discharged from the container body. 請求項1からのいずれか一項に記載の現像剤収納ユニットと、
前記現像剤と、
静電潜像を担持するための像担持体と、
前記静電潜像を現像するための現像剤担持体と、
を備えることを特徴とするプロセスカートリッジ。
The developer storage unit according to any one of claims 1 to 8 .
With the developer
An image carrier for supporting an electrostatic latent image and
A developer carrier for developing the electrostatic latent image and
A process cartridge characterized by being equipped with.
請求項1からのいずれか一項に記載の現像剤収納ユニットと、
前記現像剤と、
静電潜像を担持するための像担持体と、
前記像担持体を露光して、前記静電潜像を形成するための露光装置と、
前記静電潜像を現像するための現像剤担持体と、
を備えることを特徴する画像形成装置。
The developer storage unit according to any one of claims 1 to 8 .
With the developer
An image carrier for supporting an electrostatic latent image and
An exposure apparatus for exposing the image carrier to form the electrostatic latent image,
A developer carrier for developing the electrostatic latent image and
An image forming apparatus comprising.
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