JPH0362065A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPH0362065A JPH0362065A JP1198528A JP19852889A JPH0362065A JP H0362065 A JPH0362065 A JP H0362065A JP 1198528 A JP1198528 A JP 1198528A JP 19852889 A JP19852889 A JP 19852889A JP H0362065 A JPH0362065 A JP H0362065A
- Authority
- JP
- Japan
- Prior art keywords
- developing device
- toner hopper
- image forming
- forming apparatus
- main body
- 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
- 230000003028 elevating effect Effects 0.000 claims abstract description 5
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は画像形成装置に関し、特に現像装置を画像形成
装置本体内部に脱着する際にトナーホッパーが現像装置
に対して上下方向へ昇降する画像形成装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an image forming apparatus, and in particular to an image forming apparatus in which a toner hopper moves up and down relative to the developing apparatus when the developing apparatus is installed and removed inside the main body of the image forming apparatus. The present invention relates to a forming device.
（従来技術）
一般に、画像形成装置本体内部に現像装置が着脱自在な
画像形成装置としては、上方のトナーホッパーから下方
の現像装置へトナーを供給するトナー供給部が、上記現
像装置を画像形成装置本体から着脱する際に摺動するよ
うにしたものがある。(Prior Art) Generally, in an image forming apparatus in which a developing device is detachably installed inside the main body of the image forming apparatus, a toner supply section that supplies toner from an upper toner hopper to a lower developing device is used to connect the developing device to the image forming apparatus. Some devices are designed to slide when attached to or removed from the main body.
ところが、現像装置を着脱する際に摺動させるために、
高い位置精度を必要としコスト高となる、あるいは現像
装置を着脱する際の作業者の負担を軽減するために摺動
部を小さくすると、トナーの供給経路が複雑になる等の
問題点があった。 そこで、先に、本発明者は、実願昭
６３−１４１４２１号において、第５図に示す画像形成
装置を提案した。この画像形成装置Ａは、現像装置１と
該現像装置１の上方に配設されるトナーホッパー２と該
トナーホッパー２を現像装置１に対して上下方向に昇降
させための装置本体内部に回動自在に配設されるレバ一
部材３とを有するものであり、前記現像装置１をその現
像ローラの軸芯方向に摺動させて画像形成装置Ａ本体内
部に脱着する際、前記レバ一部材３を回動させることに
より前記トナーホッパー２を現像装置１に対して上下方
向へ昇降するようにしたものである。なお、図中の４は
トナーホッパー２に設けたピン、５は前記ピンを案内す
るために画像形成装置本体内部に設けられたガイドであ
り、ピン４がガイド５に案内されることによりトナーホ
ッパー２は現像装置１に対して上下方向に円滑に昇降す
るようになっている。However, in order to slide the developing device when installing and removing it,
There were problems such as requiring high positional accuracy, resulting in high costs, or making the sliding part smaller to reduce the burden on the operator when installing and removing the developing device, which would complicate the toner supply path. . Therefore, the present inventor previously proposed an image forming apparatus shown in FIG. 5 in Utility Application No. 141421/1983. This image forming apparatus A includes a developing device 1, a toner hopper 2 disposed above the developing device 1, and a rotating device inside the device main body for vertically raising and lowering the toner hopper 2 with respect to the developing device 1. The lever member 3 is freely disposed, and when the developing device 1 is slid in the axial direction of the developing roller to be attached to and detached from the inside of the main body of the image forming apparatus A, the lever member 3 is moved. By rotating the toner hopper 2, the toner hopper 2 is raised and lowered in the vertical direction with respect to the developing device 1. Note that 4 in the figure is a pin provided in the toner hopper 2, and 5 is a guide provided inside the main body of the image forming apparatus to guide the pin.When the pin 4 is guided by the guide 5, the toner hopper 2 is adapted to smoothly move up and down in the vertical direction with respect to the developing device 1.
図中の破線はトナーホッパー２が現像装置１に対して上
昇した状態を示したものである。The broken line in the figure shows the state in which the toner hopper 2 is raised relative to the developing device 1.
（発明が解決しようとする問題点）
ところが、上記した画像形成装置によれば、現像装置４
＠画像形成装置Ａ本体から取り外す際および現像装置４
を画像形成装置Ａ本体に装着する際には、レバ一部材３
を回転させる動作が必要となり、作業性の点で必ずしも
満足のいくものではであり、現像装置を画像形成装置に
着脱する動作に連動してトナーホッパーを上下方向に昇
降させることにより作業性が極めて良好な画像形成装置
を提供するものである。(Problems to be Solved by the Invention) However, according to the above-described image forming apparatus, the developing device 4
@When removing from image forming apparatus A main body and developing device 4
When attaching the image forming apparatus A to the main body of the image forming apparatus A, press the lever member 3.
However, the workability is extremely improved by moving the toner hopper up and down in conjunction with the operation of attaching and detaching the developing device to the image forming device. This provides a good image forming apparatus.
（問題点を解決するための手段）
本発明の画像形成装置は、現像装置と該現像装置の上方
に配設されるトナーホッパーとを装置本体内部に有し、
前記現像装置をその現像ローラ軸芯方向に摺動させて画
像形成装置本体内部に脱着する際、前記トナーホッパー
が現像装置に対して上下方向へ昇降する画像形成装置に
おいて、現像装置の脱着動作に連動してトナーホッパー
が水平状態を保持しつつ現像装置に対して上下方向に昇
降するようにしたものである。(Means for Solving the Problems) The image forming apparatus of the present invention includes a developing device and a toner hopper disposed above the developing device inside the device main body,
In an image forming apparatus in which the toner hopper moves up and down with respect to the developing device when the developing device is slid in the axial direction of the developing roller to be attached and detached into the image forming apparatus main body, the developing device is attached and detached. Interlockingly, the toner hopper is moved up and down in the vertical direction with respect to the developing device while maintaining a horizontal state.
（作用）
本発明の画像形成装置によれば、現像装置を画像形成装
置本体から取り外す場合には、現像装置の取り外し動作
に連動してトナーホッパーが現像装置に対して水平状態
を保持しつつ上昇し、現像装置を画像形成装置本体に装
着する場合には、現像装置の装着動作に連動してトナー
ホッパーが現像装置に対して水平状態を保持しつつ下降
する。(Function) According to the image forming apparatus of the present invention, when the developing device is removed from the image forming apparatus main body, the toner hopper rises while maintaining a horizontal state with respect to the developing device in conjunction with the removing operation of the developing device. However, when the developing device is attached to the main body of the image forming apparatus, the toner hopper descends while maintaining a horizontal state with respect to the developing device in conjunction with the attaching operation of the developing device.
このことにより、現像装置の脱着動作のみでトナーホン
パーを水平状態に保持させて昇降させることができる。As a result, the toner pumper can be held in a horizontal state and raised and lowered only by the operation of attaching and detaching the developing device.
（実施例）
以下、本発明の画像形成装置の実施例を第１図乃至第４
図に基づいて説明する。なお、前記従来技術と共通の要
素については同一の符号を使用し、説明を省略する。(Example) Examples of the image forming apparatus of the present invention will be described below with reference to FIGS. 1 to 4.
This will be explained based on the diagram. Note that the same reference numerals are used for the same elements as those in the prior art, and the description thereof will be omitted.
第１図は、本発明の画像形成装置の一実施例を示す斜視
図、第２図および第３図は本実施例の作用を説明する断
面図、第４図は本発明の他の実施例を示す斜視図である
。FIG. 1 is a perspective view showing one embodiment of the image forming apparatus of the present invention, FIGS. 2 and 3 are sectional views explaining the operation of this embodiment, and FIG. 4 is another embodiment of the present invention. FIG.
この実施例において、従来の画像形成装置Ａと異なる第
１の点は、第１図乃至第３図に示すように、レバ一部材
３を削除して、トナーホッパー２の一方の下端部に回転
部材としてのコロ６を回転自在に取りつけると共に、こ
のコロ６と当接する昇降案内部材７を画像形成装置本体
内部に現像装置１の脱着動作に連動して脱着方向に移動
可能に設けた点である。更に、従来の画像形成装置Ａと
異なる第２の点は、トナーホッパー２が前記昇降案内部
材７により昇降した際に水平方向に同じ高さを取りうる
ようにするための高さ調整機構１２を有する点である。In this embodiment, the first difference from the conventional image forming apparatus A is that, as shown in FIGS. The roller 6 as a member is rotatably mounted, and the lifting guide member 7 that comes into contact with the roller 6 is provided inside the main body of the image forming apparatus so as to be movable in the attachment/detachment direction in conjunction with the attachment/detachment operation of the developing device 1. . Furthermore, the second point different from the conventional image forming apparatus A is that the toner hopper 2 is provided with a height adjustment mechanism 12 so that the same height can be maintained in the horizontal direction when the toner hopper 2 is raised and lowered by the lifting guide member 7. It is a point to have.
ここで、第１の異なる点について詳述すると、昇降案内
部材７は、図示しない現像ローラの軸芯方向アに脱着さ
れる現像装置１に対して、トナーホッパー２が下降して
現像装置１と接続する第１の面８と第１の面８から第２
の面９とをつなぐ傾斜面１０とトナーホッパー２が上昇
して現像装置１との接続を解除する第２の面９とを連続
してこの順番に装着方向に形成したものである。なお、
第１の面８および傾斜面１０は昇降案内部材７の手前側
の端部の僅かな領域にのみ設けられており、残りの領域
は第２の面９が設けられている。更に、現像装置１を公
知の手段により係止しており、画像形成装置本体内部に
固設された摺動部材１１に対して摺動することにより現
像装置ｌと連動して脱着方向アに移動可能に配設されて
いる。Here, to explain the first different point in detail, the elevation guide member 7 is arranged so that the toner hopper 2 is lowered and removed from the developing device 1, which is attached and detached in the axial direction A of the developing roller (not shown). The first surface 8 to be connected and the second surface 8 from the first surface 8
The inclined surface 10 connecting the toner hopper 2 with the surface 9 and the second surface 9 from which the toner hopper 2 rises to release the connection with the developing device 1 are continuously formed in this order in the mounting direction. In addition,
The first surface 8 and the inclined surface 10 are provided only in a small area at the front end of the elevation guide member 7, and the second surface 9 is provided in the remaining area. Furthermore, the developing device 1 is locked by a known means, and by sliding on a sliding member 11 fixed inside the main body of the image forming apparatus, it moves in the detaching direction A in conjunction with the developing device L. possible.
ついで、第２の異なる点について詳述すると、高さ調整
機構１２はトナーホッパー２の側面に設けられた一対の
ラック１３と、このラック１３に噛み合うように設けら
れた一対のピニオン１４を固着し画像形成装置本体内部
に回動自在に配設される調整軸１５とにより構成されて
いる。Next, to explain the second different point in detail, the height adjustment mechanism 12 fixes a pair of racks 13 provided on the sides of the toner hopper 2 and a pair of pinions 14 provided to mesh with the racks 13. The adjustment shaft 15 is rotatably disposed inside the main body of the image forming apparatus.
引き続いて、上記の構成に基づく本実施例の画像形成装
置の作用について説明する。Subsequently, the operation of the image forming apparatus of this embodiment based on the above configuration will be explained.
まず、現像装置１とトナーホッパー２が接続している状
態においては、第１図の実線および第２図に示すように
、トナーホッパー２の自重によりコロ６は昇降案内部材
７の第１の面８に当接して位置しており、現像動作を行
うことができる。First, when the developing device 1 and the toner hopper 2 are connected, as shown by the solid line in FIG. 1 and in FIG. 8, and can perform a developing operation.
次いで、現像装置１を装置本体から取り外す場合には、
第１図の一点鎖線および第３図に示すように、現像装置
１を脱着方向アに対してわずかに引っ張ると、昇降案内
部材７も連動して移動し、コロ６の当接する面は傾斜面
１０を経て第２の面９に切り替わる。この結果、トナー
ホッパー２は装置本体内部においてビン４によりガイド
５に案内されて上昇し、現像装置１との接続が解除され
る。この状態で現像装置１を取り外すことができる。Next, when removing the developing device 1 from the main body of the device,
As shown by the dashed line in FIG. 1 and in FIG. 10 and then switches to the second surface 9. As a result, the toner hopper 2 is guided by the guide 5 by the bin 4 inside the apparatus main body, moves upward, and is disconnected from the developing device 1. In this state, the developing device 1 can be removed.
一方ミ現像装置１を装置本体内部に装着する場合には、
現像装置ｌを挿入していくと、昇降案内部材７も連動し
て装置本体内に移動し、現像装置１が装置本体内部に完
全に装着される直前において、トナーホッパー２のコロ
６の当接する面が第２の面９から傾斜面１０および第１
の面８に切り替わる。この結果、現像装置ｌが装置本体
に装着される直前にトナーホッパー２が下降して現像装
置と接続される。On the other hand, when installing the developing device 1 inside the main body of the device,
As the developing device 1 is inserted, the elevating guide member 7 also moves into the main body of the device, and just before the developing device 1 is completely installed inside the main body of the device, the roller 6 of the toner hopper 2 comes into contact with it. The surface extends from the second surface 9 to the inclined surface 10 and the first surface.
Switches to side 8. As a result, the toner hopper 2 is lowered and connected to the developing device immediately before the developing device 1 is attached to the main body of the device.
なお、上記したようにコロ６の当接する面が切り替わる
際には、トナーホッパー２のコロ６を設けていない側の
端部（図中では奥側）が水平方向にみて下がり勝手にな
ろうとするが、本発明においては高さ調整機構１２が設
けられているため、このコロ６が第１の面８から第２の
面９（又は、第２の面９から第１の面８）に切り替わる
際に、装置本体に配設された調整軸１５のピニオン１４
に対して手前側（又は、奥側）のラック１３がトナーホ
ッパー２と共に上昇することにより、ピニオン１４を回
転させて調整軸１５を介して奥側（又は、手前側）のピ
ニオン１４を回転させる。Note that, as described above, when the surface that the rollers 6 come into contact with changes, the end of the toner hopper 2 on the side where the rollers 6 are not provided (the back side in the figure) tends to move downwards when viewed in the horizontal direction. However, in the present invention, since the height adjustment mechanism 12 is provided, this roller 6 is switched from the first surface 8 to the second surface 9 (or from the second surface 9 to the first surface 8). At this time, the pinion 14 of the adjustment shaft 15 disposed in the main body of the device
When the rack 13 on the front side (or back side) rises together with the toner hopper 2, the pinion 14 is rotated, and the pinion 14 on the back side (or front side) is rotated via the adjustment shaft 15. .
その結果、奥側と手前側は同じ高さを取ることができる
ためにトナーホッパ−２内部のトナーの分布の偏りの発
生を未然に防止しつつトナーホッパー２の円滑な昇降が
可能となる。As a result, the rear side and the front side can have the same height, so that the toner hopper 2 can be smoothly raised and lowered while preventing the occurrence of uneven toner distribution inside the toner hopper 2.
本実施例においては、現像装置１を取り外す際に、現像
装置１を僅かに引き出すだけでトナーホッパー２が現像
装置１との接続を解除して上昇し、現像装置ｌを装置本
体内部に完全に装着し終える直前にトナーホッパー２が
下降して現像装置１と接続するように昇降案内部材７の
第１の面８、傾斜面ｌＯおよび第２の面９とトナーホッ
パー２のコロ６を配設しているために、作業性がより向
上する。In this embodiment, when removing the developing device 1, by pulling out the developing device 1 slightly, the toner hopper 2 disconnects from the developing device 1 and rises, completely inserting the developing device 1 inside the main body of the device. The first surface 8, inclined surface 1O, and second surface 9 of the elevating guide member 7 and the rollers 6 of the toner hopper 2 are arranged so that the toner hopper 2 descends and connects with the developing device 1 just before the installation is finished. This improves work efficiency.
なお、本実施例においては画像形成装置として一つの昇
降案内部材７を摺動部材１１に摺動自在に設けたものを
例にとって説明したが、これに限らず、例えば特公昭６
１−５８０３５号に開示されるような、画像形成ユニッ
トを着脱自在に装着する支持体を装置本体の作用位置と
装置本体外の非作用位置とに一対のスライダーにより挿
脱自在に構成した画像形成装置に適用することも可能で
ある。In this embodiment, an image forming apparatus in which one elevating guide member 7 is slidably provided on a sliding member 11 has been described as an example, but the present invention is not limited to this.
1-58035, in which a support body on which an image forming unit is removably attached is configured to be removably inserted into an active position of the apparatus main body and a non-active position outside the apparatus main body by means of a pair of sliders. It is also possible to apply it to devices.
更に、本実施例においては、高さ調整機構としてラック
とピニオンを用いたが、これに限らず、例えば第４図に
示すようにベルトとプーリを使用しても良い。Further, in this embodiment, a rack and pinion are used as the height adjustment mechanism, but the height adjustment mechanism is not limited to this, and a belt and pulley may be used, for example, as shown in FIG.
（効果）
本発明の画像形成装置によれば、現像装置を画像形成装
置本体から取り外す場合には、現像装置の取り外し動作
に連動してトナーホッパーが現像装置に対して水平状態
を保持しつつ上昇し、現像装置を画像形成装置本体に装
着する場合には、現像装置の装着動作に連動してトナー
ホッパーが現像装置に対して水平状態を保持しつつ下降
する。(Effects) According to the image forming apparatus of the present invention, when the developing device is removed from the image forming apparatus main body, the toner hopper rises while maintaining a horizontal state with respect to the developing device in conjunction with the removal operation of the developing device. However, when the developing device is attached to the main body of the image forming apparatus, the toner hopper descends while maintaining a horizontal state with respect to the developing device in conjunction with the attaching operation of the developing device.
従って、現像装置の脱着動作のみでトナーホッパーを水
平状態に保持させて昇降させることができる。Therefore, the toner hopper can be maintained in a horizontal state and moved up and down by simply attaching and detaching the developing device.
このことにより、作業性が向上するととも？こ、トナー
ホッパー内のトナー分布の偏りを未然に防止しつつトナ
ーホッパーの円滑な上下方向の昇降が可能となる。Will this improve work efficiency? This allows the toner hopper to move up and down smoothly while preventing uneven toner distribution within the toner hopper.
第１図は、本発明の画像形成装置の一実施例を示す斜視
図、第２図および第３図は本実施例の作用を説明する断
面図、第４図は本発明の他の実施例を示す斜視図、第５
図は従来の画像形成装置を示す断面図である。
Ａ・・・画像形成装置、１・・・現像装置、２・・・ト
ナーホッパー、６・・・コロ、７・昇降案内部材、８・
・・第１の面、９・・・第２の面、１２・・・高さ調整
機構FIG. 1 is a perspective view showing one embodiment of the image forming apparatus of the present invention, FIGS. 2 and 3 are sectional views explaining the operation of this embodiment, and FIG. 4 is another embodiment of the present invention. 5th perspective view showing
The figure is a sectional view showing a conventional image forming apparatus. A... Image forming device, 1... Developing device, 2... Toner hopper, 6... Roller, 7. Lifting guide member, 8.
...First surface, 9...Second surface, 12...Height adjustment mechanism
Claims (2)
ホッパーとを装置本体内部に有し、前記現像装置をその
現像ローラ軸芯方向に摺動させて画像形成装置本体内部
に脱着する際、前記トナーホッパーが現像装置に対して
上下方向へ昇降する画像形成装置において、現像装置の
脱着動作に連動してトナーホッパーが水平状態を保持し
つつ現像装置に対して上下方向に昇降するようにしたこ
とを特徴とする画像形成装置。(1) A developing device and a toner hopper disposed above the developing device are provided inside the device main body, and the developing device is slid in the axial direction of the developing roller to be detached from the inside of the image forming device main body. In an image forming apparatus in which the toner hopper moves up and down in the vertical direction with respect to the developing device, the toner hopper moves up and down in the vertical direction with respect to the developing device while maintaining a horizontal state in conjunction with the attachment/detachment operation of the developing device. An image forming apparatus characterized by:
第１の面とトナーホッパーが上昇し現像装置との接続を
解除する第２の面を有する昇降案内部材を前記現像装置
の脱着動作に連動して移動自在に備えると共に、トナー
ホッパーが前記昇降案内部材により昇降した際に水平方
向に同じ高さを取りうるようにするための高さ調整機構
を有し、前記トナーホッパーは前記昇降案内部材と当接
する回転部材を有することを特徴とする請求項（１）記
載の画像形成装置。(2) An elevating guide member having a first surface where the toner hopper descends and connects with the developing device and a second surface where the toner hopper ascends and disconnects from the developing device is linked to the attachment/detachment operation of the developing device. The toner hopper is movable and has a height adjustment mechanism so that the same height can be maintained in the horizontal direction when the toner hopper is moved up and down by the up/down guide member, and the toner hopper is moved up and down by the up/down guide member. The image forming apparatus according to claim 1, further comprising a rotating member that comes into contact with the image forming apparatus.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1198528A JP2628559B2 (en) | 1989-07-31 | 1989-07-31 | Image forming device |
| US07/426,748 US5121165A (en) | 1988-10-28 | 1989-10-24 | Developer unit and a toner hopper for an image forming device |
| EP89119839A EP0366113B1 (en) | 1988-10-28 | 1989-10-25 | Image forming device |
| DE68916745T DE68916745T2 (en) | 1988-10-28 | 1989-10-25 | Imaging device. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1198528A JP2628559B2 (en) | 1989-07-31 | 1989-07-31 | Image forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0362065A true JPH0362065A (en) | 1991-03-18 |
| JP2628559B2 JP2628559B2 (en) | 1997-07-09 |
Family
ID=16392645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1198528A Expired - Lifetime JP2628559B2 (en) | 1988-10-28 | 1989-07-31 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2628559B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03147676A (en) * | 1989-11-02 | 1991-06-24 | Daido Steel Co Ltd | Taking-up on reel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60247268A (en) * | 1984-05-22 | 1985-12-06 | Sanyo Electric Co Ltd | Electrostatic recording device |
| JPS6122370A (en) * | 1984-07-10 | 1986-01-30 | Canon Inc | Developing device |
| JPS6431175A (en) * | 1987-07-28 | 1989-02-01 | Ricoh Kk | Image forming device |
-
1989
- 1989-07-31 JP JP1198528A patent/JP2628559B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60247268A (en) * | 1984-05-22 | 1985-12-06 | Sanyo Electric Co Ltd | Electrostatic recording device |
| JPS6122370A (en) * | 1984-07-10 | 1986-01-30 | Canon Inc | Developing device |
| JPS6431175A (en) * | 1987-07-28 | 1989-02-01 | Ricoh Kk | Image forming device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03147676A (en) * | 1989-11-02 | 1991-06-24 | Daido Steel Co Ltd | Taking-up on reel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2628559B2 (en) | 1997-07-09 |
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