JPH04157488A - Developing device in image forming device - Google Patents
Developing device in image forming deviceInfo
- Publication number
- JPH04157488A JPH04157488A JP2283706A JP28370690A JPH04157488A JP H04157488 A JPH04157488 A JP H04157488A JP 2283706 A JP2283706 A JP 2283706A JP 28370690 A JP28370690 A JP 28370690A JP H04157488 A JPH04157488 A JP H04157488A
- Authority
- JP
- Japan
- Prior art keywords
- agitator
- toner
- filling port
- drive transmission
- developing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000002265 prevention Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 108091008695 photoreceptors Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、アジテータを備えたトナー収納部にトナーを
充填する充填口が設けられおり、画像形成装置本体に対
し着脱可能な複写機、レーザープリンタ等の画像形成装
置における現像装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to copiers, laser printers, etc., in which a toner storage section equipped with an agitator is provided with a filling port for filling toner, and which is detachable from the main body of an image forming apparatus. The present invention relates to a developing device in an image forming apparatus.
従来技術
複写機、レーザープリンタ等の画像形成装置において、
予め収納されたトナーが使い切ると、現像装置もしくは
感光体を含めたプロセスカートリッジごと、新しいもの
と交換する形式のものは既に知られている。また、この
種の画像形成装置における現像装置ではそのトナー収納
部にトナーを充填する充填口がユーザーでも見つけられ
る場所に設けられていた。Conventional technology In image forming devices such as copying machines and laser printers,
It is already known that when the pre-stored toner is used up, the entire process cartridge including the developing device or photoreceptor is replaced with a new one. Further, in the developing device of this type of image forming apparatus, a filling port for filling the toner storage portion with toner is provided at a location where a user can find it.
発明が解決しようとする課題
しかしながら、上記したトナー充填口がユーザーでも見
つけられる画像形成装置では、予め収納されたトナーが
使い切ってもユーザーが現像装置もしくは感光体を含め
たプロセスカートリッジごと交換せず、費用の安いトナ
ーのみをその充填口から補充してしまことがあった。二
のため、現像装置が故障する等の問題が発生するだけで
なく、間違ったトナーを補充したすることもあった。二
のため、充填口を閉鎖するキャップを接着する二とも行
われているが、画像形成装置本体に対し着脱可能な現像
装置ではキャップを接着してもこれをこし開ける恐れが
あった。Problems to be Solved by the Invention However, in image forming apparatuses in which the user can find the toner filling port described above, even if the pre-stored toner is used up, the user does not have to replace the entire process cartridge including the developing device or photoreceptor. I sometimes ended up refilling only cheap toner through the filling port. As a result, not only problems such as failure of the developing device occur, but also replenishment of the wrong toner. For this reason, a cap that closes the filling port is bonded. However, in a developing device that is removable from the main body of an image forming apparatus, even if the cap is bonded, there is a risk that the cap may be forced open.
本発明は、上述した従来の問題を解消し、ユーザーが独
断でトナーを補充することを防止する二とのできる現像
装置を提供することを課題としている。SUMMARY OF THE INVENTION An object of the present invention is to provide a developing device that solves the above-mentioned conventional problems and prevents users from replenishing toner at their own discretion.
課題を解決するための手段 上記課題を解決する本発明の構成は次の如くである。Means to solve problems The configuration of the present invention for solving the above problems is as follows.
（１）アジテータを備えたトナー収納部にトナーを充填
する充填口が設けられおり、画像形成装置本体に対し着
脱可能な画像形成装置における現像装置において、前記
アジテータの軸に駆動を伝達する駆動伝達部材により、
前記充填口を閉鎖するキャップ部材を隠すことを特徴と
する現像装置。(1) In a developing device of an image forming apparatus that is removably attached to the image forming apparatus main body, a toner storage portion equipped with an agitator is provided with a filling port for filling toner, and a drive transmission that transmits the drive to the shaft of the agitator. Depending on the parts,
A developing device characterized in that a cap member that closes the filling port is hidden.
（２）前記駆動伝達部材が、前記アジテータの軸にはめ
込り式に装着され、はめ込まれた駆動伝達部材には７７
”テークの軸、：＋）ら取り外し不可能にする取り外し
阻止部材が設けられていることを特徴とする請求項１に
記載の現像装置。(2) The drive transmission member is fitted onto the shaft of the agitator, and the fitted drive transmission member has 77
2. The developing device according to claim 1, further comprising a removal preventing member that prevents removal from the take shaft.
作 用
上記請求項（１）の構成によれば、充填口を閉鎖するキ
ャップ部材が駆動伝達部材でしされているので、ユーザ
ーがこれを発見しにくくなり、ユーザーによるトナー補
充を防止できる。Effects According to the structure of claim (1), since the cap member that closes the filling port is secured by the drive transmission member, it becomes difficult for the user to discover it, and it is possible to prevent the user from replenishing toner.
上記請求項（２）の構成によれば、駆動伝達部材で隠さ
れている充填口が見つけられたとしても取り外し阻止部
材を設けたので、駆動伝達部材を破損する以外にトナー
を補充ができず、ユーザーによるトナー補充を確実に防
止できる。According to the structure of claim (2), even if the filling port hidden by the drive transmission member is found, since the removal preventing member is provided, toner cannot be refilled without damaging the drive transmission member. , it is possible to reliably prevent toner replenishment by the user.
実施例 以下、本発明の実施例を添付図面に従って説明する。Example Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図は、本発明に係る現像装置のトナー収納部を示す
概略分解斜視図である。FIG. 1 is a schematic exploded perspective view showing a toner storage section of a developing device according to the present invention.
第１図において、符号１はトナー収納部としてのトナー
ホッパであり、２はそのケーシング、３は後フランジで
ある。二の後フランジ３と図示していない助フランンと
でトナーホッパ１内に配設されたアジテータ４を支持し
ている。アジテータ４は、駆動軸５と、該駆動軸５に固
着された羽根部材６に取り付けられたシー１−７を備え
ている。In FIG. 1, reference numeral 1 is a toner hopper as a toner storage section, 2 is a casing thereof, and 3 is a rear flange. An agitator 4 disposed within the toner hopper 1 is supported by the second rear flange 3 and an auxiliary flange (not shown). The agitator 4 includes a drive shaft 5 and a sheath 1-7 attached to a blade member 6 fixed to the drive shaft 5.
トナーホッパ１のケーシング２には、図示していない現
像部側に、トナー充填時にトナーが吐出しない程度の大
きさの小穴８ａが長手方向に複数個形成されたシート８
が設けられている。また、後フランジ３と前フランジは
その小穴８ａと対応する位置に開口９ａが形成され、ケ
ーシング２の面に沿って若干移動可能なシャッター９を
支持しており、シャッター９にはスポンジシール１０が
取り付けられている。In the casing 2 of the toner hopper 1, a sheet 8 is formed on the developing section side (not shown) with a plurality of small holes 8a having a size that prevents toner from being discharged during toner filling in the longitudinal direction.
is provided. Further, the rear flange 3 and the front flange have openings 9a formed at positions corresponding to the small holes 8a, and support a shutter 9 that can be moved slightly along the surface of the casing 2, and a sponge seal 10 is attached to the shutter 9. installed.
後フランジ３には、トナーを充填するための充填口１１
と、アジテータ４の駆動軸５が貫通する支持穴３ａどが
設けられている。この場合、充填口１１はアジテータ４
の駆動軸５に装着される駆動伝達部材としてのアジテー
タギヤ１３によって隠れる位置に形成されている。また
、本例のアジテータギヤ１３には充填口１１をより隠し
ゃすくするようにアジテータギヤ１３の径よりも大径の
円板状の座１４が一体的に設けられている。なお、符号
１２は充填口１１を閉鎖するキャップ部材である。The rear flange 3 has a filling port 11 for filling toner.
A support hole 3a through which the drive shaft 5 of the agitator 4 passes is provided. In this case, the filling port 11 is connected to the agitator 4
It is formed in a position hidden by an agitator gear 13 serving as a drive transmission member mounted on the drive shaft 5 of. Further, the agitator gear 13 of this example is integrally provided with a disk-shaped seat 14 having a diameter larger than that of the agitator gear 13 so as to further hide the filling port 11. In addition, the code|symbol 12 is a cap member which closes the filling port 11.
アジテータ４の駆動軸５の先端側には、断面四角形状に
形成されたアジテータギヤ１３の支持部５ａが設けられ
、さらにその先端にはクリック感を持たせた抜は止め部
１５が形成されている。−方、アジテータギヤ１３の軸
装着穴（図示せず）も駆動軸５の先端側に形成された支
持部５ａが合致するように断面四角形状に形成され、ア
ジテータギヤ１３ははめ込み式であり、ワンタンチ装着
可能となっている。そして、アジテータギヤ１３の外側
にはその軸装着穴にはめられた抜は止め部１５を囲むよ
うに、取り外し阻止部材１６が一体的に設けられている
。A support portion 5a for the agitator gear 13 having a square cross section is provided on the tip side of the drive shaft 5 of the agitator 4, and a pull-out stop portion 15 with a click feeling is further formed at the tip. There is. - On the other hand, the shaft mounting hole (not shown) of the agitator gear 13 is also formed to have a square cross-section so that the support portion 5a formed on the distal end side of the drive shaft 5 fits therein, and the agitator gear 13 is a fit-in type. It is possible to attach one button. A removal prevention member 16 is integrally provided on the outside of the agitator gear 13 so as to surround the removal stop portion 15 fitted in the shaft mounting hole.
かく構成の現像装置１におけるトナーホッパ１の組立は
、まず、後フランジ３をケージ〉〃２に結合する。この
ときの結合方法は、本実施例で１ｊ接着であるが、溶接
等でもよく、取り外しできないようにする。次に、アノ
テータ４の駆動軸５をトナーホッパ１の内側から後フラ
ンジ３の支持穴３ａに差し込み、さらにシャッター９を
差し込み後、前フランジをプーリング２に結合する。To assemble the toner hopper 1 in the developing device 1 thus constructed, first, the rear flange 3 is connected to the cage 2. The joining method at this time is 1j adhesion in this embodiment, but welding or the like may also be used, so that it cannot be removed. Next, the drive shaft 5 of the annotator 4 is inserted into the support hole 3a of the rear flange 3 from inside the toner hopper 1, and after the shutter 9 is inserted, the front flange is coupled to the pooling 2.
かく作られたトナーホッパ１内に、充填口１１からトナ
ーを充積し、充填口１１をキャップ部材１２で閉鎖する
。この場合、トナーの密封性を得るため、予めシャッタ
９を動かして開口９ａと小穴８ａとがずれるようにし、
このとき、上記スポンジシール１０がトナーの密封性を
高めている。Toner is filled into the toner hopper 1 thus created through the filling port 11, and the filling port 11 is closed with a cap member 12. In this case, in order to seal the toner, move the shutter 9 in advance so that the opening 9a and the small hole 8a are misaligned.
At this time, the sponge seal 10 improves the sealing performance of the toner.
なお、使用開始時にはシャッター９を移動して開口９ａ
と小穴８ａとが合致するように操作する。In addition, when starting to use the shutter 9, move the opening 9a.
and the small hole 8a.
かくして、トナーの充積が完了すると、アジテータ４の
駆動軸５の先端側に、アジテータギヤ１３を装着する。When the filling of toner is completed in this manner, the agitator gear 13 is attached to the distal end side of the drive shaft 5 of the agitator 4.
そして、アジテータギヤ１３が装着されると、アジテー
タギヤ１３には座１４を設けていることにより、充填口
１１にはめ込まれたキャップ部材１２がアジテータギヤ
１３によって咥され、ユーザーが充填口１】のキャップ
部材）２を見つけることができない、。When the agitator gear 13 is installed, since the agitator gear 13 is provided with a seat 14, the cap member 12 fitted into the filling port 11 is held in the agitator gear 13, and the user can open the filling port 1]. Cap member) 2 cannot be found.
才だ、アジテータギヤ１３は抜は止め部１５にはめ込む
というワン々ノチ操作で装着することができ、はめ込み
後は第２図に示すように、クリック感を持たせた抜は止
め部】５と取り外し阻」Ｌ部材１６との隙間Ａを小さく
なるように設定することにより、工具等を用いてアジテ
ータギヤ１３を外す二とができないように構成されてい
る。The agitator gear 13 can be installed with a single notch operation by fitting it into the removal stop 15, and after fitting, the removal stop 15 with a click feeling is attached as shown in Figure 2. By setting the gap A between the agitator gear 13 and the L member 16 to be small, it is impossible to remove the agitator gear 13 using a tool or the like.
従って、万一ユーザーが充填口１１のキャップ部材１２
を見つけたとしてもトナーを補充する場合、アジテータ
ギヤ１３を破損しなければならない。そして、アジテー
タギヤ１３を破損させてしまえば、現像装置は使用不可
能となるので、充填口１１から補充することができず、
誤ったトナー補充が確実に防止される。Therefore, in the unlikely event that the user accidentally removes the cap member 12 of the filling port 11
Even if the agitator gear 13 is found, the agitator gear 13 must be damaged in order to replenish the toner. If the agitator gear 13 is damaged, the developing device becomes unusable and cannot be refilled from the filling port 11.
Erroneous toner replenishment is reliably prevented.
なお、アジテータ４の軸５に駆動を伝達する駆動伝達部
材としてはギヤに限らず、ベルト車、スプロケノ）・等
でもよい。Note that the drive transmission member for transmitting the drive to the shaft 5 of the agitator 4 is not limited to a gear, but may be a belt pulley, a sprocket, etc.
効 果
上記構成によれば、本発明は充填口を閉鎖するキャップ
部材が駆動伝達部材で隠されているので、ユーザーがこ
れを発見しにくくなり、ユーザーによるトナーの補充を
防止できた。Effects According to the above configuration, in the present invention, since the cap member that closes the filling port is hidden by the drive transmission member, it is difficult for the user to discover it, and it is possible to prevent the user from replenishing the toner.
さらに、駆動伝達部材で隠されている充填口がユーザー
に見つけられたとしても、取り外し阻止部材によって駆
動伝達部材を破損する以外にトナーを補充不可能となり
、ユーザーによるトナー補充を確実に防止できた。Furthermore, even if the user were to find the filling port hidden by the drive transmission member, the removal prevention member would prevent the user from refilling toner without damaging the drive transmission member, thereby reliably preventing the user from replenishing toner. .
第１図は、本発明に係る現像装置のトナー収納部を示す
概略分解斜視図、第２図はその断面図である。
１・・・トナーホッパ
４・・・アジテータ
１１・・・充填口
１２・・・キャップ部材
１３・・・アジテータギヤ
１５・・・抜は止め部
１６・・・取り外し阻止部材FIG. 1 is a schematic exploded perspective view showing a toner storage section of a developing device according to the present invention, and FIG. 2 is a sectional view thereof. 1... Toner hopper 4... Agitator 11... Filling port 12... Cap member 13... Agitator gear 15... Removal stop part 16... Removal prevention member
Claims (2)
する充填口が設けられおり、画像形成装置本体に対し着
脱可能な画像形成装置における現像装置において、 前記アジテータの軸に駆動を伝達する駆動伝達部材によ
り、前記充填口を閉鎖するキャップ部材を隠すことを特
徴とする現像装置。(1) In a developing device of an image forming apparatus that is removably attached to the main body of the image forming apparatus, the toner storage portion equipped with an agitator is provided with a filling port for filling toner, and a drive transmission that transmits the drive to the shaft of the agitator. A developing device characterized in that a cap member that closes the filling port is hidden by a member.
込み式に装着され、はめ込まれた駆動伝達部材にはアジ
テータの軸から取り外し不可能にする取り外し阻止部材
が設けられていることを特徴とする請求項１に記載の現
像装置。(2) The drive transmission member is fitted onto the shaft of the agitator, and the fitted drive transmission member is provided with a removal prevention member that makes it impossible to remove it from the shaft of the agitator. The developing device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2283706A JP2992322B2 (en) | 1990-10-22 | 1990-10-22 | Developing device in image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2283706A JP2992322B2 (en) | 1990-10-22 | 1990-10-22 | Developing device in image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04157488A true JPH04157488A (en) | 1992-05-29 |
| JP2992322B2 JP2992322B2 (en) | 1999-12-20 |
Family
ID=17669029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2283706A Expired - Fee Related JP2992322B2 (en) | 1990-10-22 | 1990-10-22 | Developing device in image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2992322B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001125441A (en) * | 1999-10-25 | 2001-05-11 | Fuji Photo Film Co Ltd | Method, device, and system for detecting inadequate cartridge, cartridge, and storage medium |
| JP2012032617A (en) * | 2010-07-30 | 2012-02-16 | Ricoh Co Ltd | Mixing and agitating structure, developing device, process cartridge and image forming apparatus |
| WO2014080538A1 (en) * | 2012-11-20 | 2014-05-30 | ブラザー工業株式会社 | Cartridge and cartridge fabrication method |
| US20150003868A1 (en) * | 2013-06-28 | 2015-01-01 | Brother Kogyo Kabushiki Kaisha | Cartridge Provided with Cover Member Including a Plurality of Covers Separable From Each Other |
-
1990
- 1990-10-22 JP JP2283706A patent/JP2992322B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001125441A (en) * | 1999-10-25 | 2001-05-11 | Fuji Photo Film Co Ltd | Method, device, and system for detecting inadequate cartridge, cartridge, and storage medium |
| JP2012032617A (en) * | 2010-07-30 | 2012-02-16 | Ricoh Co Ltd | Mixing and agitating structure, developing device, process cartridge and image forming apparatus |
| WO2014080538A1 (en) * | 2012-11-20 | 2014-05-30 | ブラザー工業株式会社 | Cartridge and cartridge fabrication method |
| JP2014102403A (en) * | 2012-11-20 | 2014-06-05 | Brother Ind Ltd | Cartridge and manufacturing method of cartridge |
| CN104685420A (en) * | 2012-11-20 | 2015-06-03 | 兄弟工业株式会社 | Cartridge and cartridge fabrication method |
| US20150003868A1 (en) * | 2013-06-28 | 2015-01-01 | Brother Kogyo Kabushiki Kaisha | Cartridge Provided with Cover Member Including a Plurality of Covers Separable From Each Other |
| US9213304B2 (en) * | 2013-06-28 | 2015-12-15 | Brother Kogyo Kabushiki Kaisha | Cartridge provided with cover member including a plurality of covers separable from each other |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2992322B2 (en) | 1999-12-20 |
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