JPH089727Y2 - Charger device of image forming apparatus - Google Patents
Charger device of image forming apparatusInfo
- Publication number
- JPH089727Y2 JPH089727Y2 JP1989003403U JP340389U JPH089727Y2 JP H089727 Y2 JPH089727 Y2 JP H089727Y2 JP 1989003403 U JP1989003403 U JP 1989003403U JP 340389 U JP340389 U JP 340389U JP H089727 Y2 JPH089727 Y2 JP H089727Y2
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- charger device
- end block
- image forming
- charge
- 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.)
- Expired - Lifetime
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 240000005561 Musa balbisiana Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、例えば静電写真複写機やファクシミリ等の
画像形成装置に装備されるチャージャ装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a charger device installed in an image forming apparatus such as an electrostatic photocopier or a facsimile.
例えば静電写真複写機には、感光体表面に対する帯電
用のチャージャ装置や、感光体表面に形成されたトナー
像の転写シートに対する転写用のチャージャ装置、その
他、感光体表面からの転写シート分離用のチャージャ装
置や除電用のチャージャ装置が備えられ、かつ一般に、
当該チャージャ装置は装置本体に対して挿抜自在に構成
されている。For example, in an electrostatic photocopier, a charger device for charging the surface of a photoconductor, a charger device for transferring a toner image formed on the surface of the photoconductor to a transfer sheet, and other devices for separating a transfer sheet from the surface of the photoconductor Is equipped with a charger device and a charger device for static elimination, and generally,
The charger device is configured to be insertable into and removable from the device body.
かかるチャージャ装置として、第７図に示すように、
放電用の開口が形成されたチャージケース21の長手方向
両側に、該チャージケース21に対して絶縁状態でチャー
ジワイヤ22を保持するエンドブロック23を設けると共
に、この内のチャージャ装置挿入側のエンドブロック23
の端部に前記チャージワイヤ22に対する入力端子24を突
設し、かつ、チャージャ装置抜き出し側のエンドブロッ
ク23には、装置本体側の被位置決め部材（例えば感光体
ハウジング）25に当接する当接部材26を連設すると共
に、この当接部材26を前記被位置決め部材25に付勢当接
させる付勢手段27を設けたものがある。As such a charger device, as shown in FIG.
End blocks 23 for holding the charge wires 22 in an insulated state from the charge case 21 are provided on both sides in the longitudinal direction of the charge case 21 in which an opening for discharging is formed, and an end block on the charger device insertion side therein is provided. twenty three
An input terminal 24 for the charge wire 22 is projectingly provided at an end portion of the charging wire 22 and an end member 23 for contacting a positioned member (for example, a photoconductor housing) 25 on the main body of the device is attached to the end block 23 on the charger device extraction side. There is a structure in which 26 are provided in series and an urging means 27 for urging and abutting the abutting member 26 against the positioned member 25 is provided.
そして、前記入力端子24を装置本体側の出力端子29に
係入させると共に、前記当接部材26を被位置決め部材25
に付勢当接させた状態で、前記チャージワイヤ22の軸芯
が感光体28の回転軸芯と平行になるように、前記感光体
28の回転軸芯に対する出力端子29の相対位置関係、並び
に、前記被位置決め部材25に対する当接部材26の相対位
置関係を設定して、前記感光体28の回転軸芯に対するチ
ャージワイヤ22の芯出しを行わせるようにしている。Then, the input terminal 24 is engaged with the output terminal 29 on the apparatus body side, and the contact member 26 is positioned by the positioned member 25.
The photosensitive member 28 so that the axis of the charge wire 22 is parallel to the axis of rotation of the photosensitive member 28 in a state of being urged and abutted against the photosensitive member 28.
By setting the relative positional relationship of the output terminal 29 with respect to the rotating shaft core of 28 and the relative positional relationship of the contact member 26 with respect to the positioned member 25, the centering of the charge wire 22 with respect to the rotating shaft core of the photoconductor 28 is performed. I am trying to do.
かかる構成のチャージャ装置において、チャージャ装
置抜き出し側のエンドブロック23によるチャージワイヤ
22の芯出しは、該エンドブロック23に連設の当接部材26
を単純に被位置決め部材25に付勢当接させることで、構
成的に簡単に達成させることができるのであるが、出力
端子29を入力端子24に係入させて行うチャージャ装置挿
入側の芯出しには、感光体28の回転軸芯に対する出力端
子29の取り付け位置を極めてシビアに設定する必要があ
り、製作面でコストアップを伴い勝ちであった。In the charger device having such a configuration, the charge wire by the end block 23 on the extraction side of the charger device
The centering of 22 is performed by a contact member 26 that is continuous with the end block 23.
Can be structurally easily achieved by simply urging the member to be positioned against the positioned member 25. However, the charger terminal insertion side is centered by engaging the output terminal 29 with the input terminal 24. In this case, it is necessary to set the mounting position of the output terminal 29 with respect to the rotation axis of the photoconductor 28 to be extremely severe, which is a win in terms of production cost.
また、上記チャージャ装置に用いられている入力端子
24は、所謂バナナチップと称される複雑な構造のもので
あってコスト的に高く、かつ、この入力端子24を係入す
る出力端子29も構造が複雑でコストが高いだけでなく、
上記の芯出しを正確に行わせる上で製作精度の高いもの
を必要としたものである。Also, the input terminal used in the above charger device
24 is a complex structure called a so-called banana chip and high in cost, and the output terminal 29 for engaging the input terminal 24 is not only complicated in structure and high in cost,
In order to perform the above-mentioned centering accurately, it is necessary to have a high manufacturing precision.
本考案は、上記の実情に鑑みて成されたものであっ
て、極く簡単で且つ合理的な改良によって、コスト的に
安価で、しかも、前記チャージワイヤの芯出しを容易に
行うことのできるチャージャ装置を提供することを目的
としている。The present invention has been made in view of the above circumstances, and is extremely simple and rational to improve the cost, and the centering of the charge wire can be easily performed. The purpose is to provide a charger device.
上記の目的を達成するための本考案による画像形成装
置のチャージャ装置は、チャージケースのチャージャ装
置挿入側の端部に、装置本体側の被位置決め部材に当接
する当接部材を備えたエンドブロックを設けると共に、
前記チャージケース内に張設されるチャージワイヤに対
する入力端子を金属板製にする一方、前記エンドブロッ
クの端部に補強部材を突設し、その補強部材に前記入力
端子を設け、かつ、当該金属板の入力端子と該入力端子
に対応する装置本体側に設けた出力端子のいずれか一方
により、前記当接部材を前記被位置決め部材に付勢当接
させるための付勢手段を構成してなることを特徴として
いる。A charger device of an image forming apparatus according to the present invention for achieving the above object includes an end block having an abutting member that abuts a positioned member on a main body of an apparatus, at an end of the charge case on the charger device inserting side. With the provision
The input terminal for the charge wire stretched in the charge case is made of a metal plate, while a reinforcing member is provided at the end of the end block so as to project, and the input terminal is provided on the reinforcing member. One of the input terminal of the plate and the output terminal provided on the apparatus main body side corresponding to the input terminal constitutes an urging means for urging the abutting member against the positioned member. It is characterized by that.
上記の特徴構成によれば、エンドブロックの端部に突
設した補強部材に設けた入力端子または本体側に設けた
出力端子の一方で構成した付勢手段により、前記エンド
ブロックに連設した当接部材を装置本体側の被位置決め
部材に付勢当接させることで、チャージャ装置挿入側に
おけるチャージワイヤの芯出しを確実におこなうことが
できる。According to the above-mentioned characteristic configuration, the biasing means constituted by one of the input terminal provided on the reinforcing member projecting at the end portion of the end block or the output terminal provided on the main body side is provided continuously with the end block. By biasing the contact member against the positioned member on the apparatus body side, the charge wire can be surely centered on the charger device insertion side.
なお、上記の入力端子を補強部材に設けてあることに
より、充分な付勢力を作用させることができるため、チ
ャージワイヤの芯出しを確実におこなえるのである。By providing the above-mentioned input terminal on the reinforcing member, a sufficient biasing force can be applied, so that the centering of the charge wire can be reliably performed.
以下、本考案の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図乃至第４図はチャージャ装置Ａの全体を示し、
このチャージャ装置Ａは、感光体１の表面に対応する側
に放電用の開口が形成された金属製のチャージケース２
の長手方向両端部に、同じく感光体表面に対応する側に
チャージワイヤ交換用の開口部が形成された合成樹脂等
の絶縁性の箱状エンドブロック3,4を設けると共に、該
エンドブロック3,4にわたってチャージワイヤ５を張設
し、かつ、前記エンドブロック3,4の開口部に、当該エ
ンドブロック内のチャージワイヤ部分に飛散トナーや紙
粉等の異物が付着して生じる放電防止のための蓋体６を
設けて成る。1 to 4 show the entire charger device A,
The charger device A includes a metal charge case 2 having an opening for discharge formed on the side corresponding to the surface of the photoconductor 1.
Insulating box-shaped end blocks 3 and 4 made of synthetic resin or the like having charge wire replacement openings formed on the side corresponding to the surface of the photosensitive member are also provided at both ends in the longitudinal direction of the end block 3, A charge wire 5 is stretched over 4 and for preventing discharge caused by foreign matter such as scattered toner or paper dust adhering to the charge wire portion in the end block at the opening of the end block 3 or 4. A lid 6 is provided.
詳しくは、前記エンドブロック3,4は、巾方向両側の
側板部に夫々、感光体ハウジング（被位置決め部材の一
例）７に当接する当接部材ａと、長手方向に延びる隆条
部ｂおよびテーパー状の係止部ｃを有すると共に、底部
内面側には、ビスｄによって位置調節されるチャージワ
イヤ保持具８が螺設され、かつ底部外面部には、装置本
体側のガイドレール９に案内される被ガイド部材10が連
設されている。More specifically, the end blocks 3 and 4 have a contact member a that abuts on the photoconductor housing (an example of a member to be positioned) 7, a ridge b that extends in the longitudinal direction, and a taper on side plate portions on both sides in the width direction. A charge wire holder 8 whose position is adjusted by a screw d is screwed on the inner surface side of the bottom portion, and is guided by the guide rail 9 on the apparatus main body side on the outer surface portion of the bottom. A guided member 10 is continuously provided.
尚、上記の当接部材ａは、当該当接部材ａが前記感光
体ハウジング７に付勢当接された状態で、前記感光体１
の回転軸芯とチャージワイヤ５の軸芯とが平行になるよ
うに寸法設定が成されている。Incidentally, the contact member a is in a state in which the contact member a is biased and contacted with the photosensitive member housing 7, and
The dimensions are set so that the rotation axis of the and the axis of the charge wire 5 are parallel to each other.
そして、一方のチャージャ装置挿入側のエンドブロッ
ク３には、平板金属製の入力端子11がブロック底面部か
ら端部外方に向けて突設され、この入力端子11の感光体
表面に対応する突出面部が当該エンドブロック３に連設
の補強部材12によって受け止め支持され、更に、前記チ
ャージワイヤ５の一端側に連結されたスプリングｅが前
記入力端子11に係止連結されている。An input terminal 11 made of a flat plate metal is provided on the end block 3 on the charger device insertion side so as to project from the bottom surface of the block toward the outside of the end. The surface portion is received and supported by a reinforcing member 12 provided continuously with the end block 3, and further, a spring e connected to one end of the charge wire 5 is locked and connected to the input terminal 11.
また、他方のチャージャ装置抜き出し側のエンドブロ
ック４には、ワイヤー固定栓13を係入する筒部材14が底
部内面に設けられ、かつ、チャージャ装置挿抜操作用の
把手15が連設されている。Further, the other end block 4 on the charger device withdrawing side is provided with a cylindrical member 14 into which a wire fixing plug 13 is fitted, on the inner surface of the bottom portion thereof, and a grip 15 for inserting and removing the charger device is continuously provided.
一方、前記エンドブロック3,4の開口部を閉じる蓋体
６は、撓み変形が可能な絶縁性を有する合成樹脂等から
成るものであって、長手方向中央よりもややチャージケ
ース２側に偏った部位の巾方向両側には舌片状に突出し
た部分6aを有し、かつ、前記他方のエンドブロック４の
開口部を閉じる蓋体６には、長手方向一端側に係止解除
用の舌片ｉが連設されている。On the other hand, the lid 6 that closes the openings of the end blocks 3 and 4 is made of an elastic synthetic resin or the like that can be flexibly deformed, and is slightly biased toward the charge case 2 side from the longitudinal center. The lid 6 which has a tongue-like protruding portion 6a on both sides in the width direction of the portion and closes the opening of the other end block 4 has a tongue piece for unlocking at one end in the longitudinal direction. i are serially arranged.
そして、前記チャージケース２の長手方向両端部の側
板部2aには、前記エンドブロック3,4の隆条部ｂおよび
テーパー状係止部ｃを係合する係止連結部g,hが設けら
れ、前記両エンドブロック3,4が所謂嵌め殺しの状態で
連結されるようになっている。The side plate portions 2a at both ends of the charge case 2 in the longitudinal direction are provided with engagement connecting portions g and h for engaging the ridge portion b and the tapered engagement portion c of the end blocks 3 and 4, respectively. The end blocks 3 and 4 are connected in a so-called fit-and-kill state.
更に、チャージャ装置挿入側のエンドブロック３を対
象にして第５図に示すように、前記チャージケース２に
形成の折れ曲がり溝部と前記エンドブロック3,4の一部
とで、前記蓋体６の巾方向両側部分6aを係入する折れ曲
がり係入部ｆを構成している。Further, as shown in FIG. 5 for the end block 3 on the charger device insertion side, the width of the lid 6 is made up of the bent groove portion formed on the charge case 2 and a part of the end blocks 3 and 4. A bent engaging portion f is formed to engage both side portions 6a in the direction.
この折れ曲がり係入部ｆは、前記巾方向両側部分6aの
巾に対応する第１溝部f1と、巾方向両側部分6aの厚みに
対応し且つ前記第１溝部f1の下端からチャージケース２
側に連なる第２溝部f2から成るものであって、前記蓋体
６の巾方向両側部分6aを前記第１溝部f1に係入させて後
に蓋体６を長手方向一方側に移動させて、前記巾方向両
側部分6aを第２溝部f2の奥部に当接させた状態で、当該
蓋体６の挿入側とは反対側（蓋体６の長手方向他方側）
の端部に当接する抜け止め具16を、前記エンドブロック
3,4の夫々に連設してある。The bent engagement portion f corresponds to the first groove portion f 1 corresponding to the width of the width direction both side portions 6a and the thickness of the width direction both side portions 6a and from the lower end of the first groove portion f 1 to the charge case 2
A second groove portion f 2 continuous to the side, and both side portions 6a in the width direction of the lid body 6 are engaged with the first groove portion f 1 and then the lid body 6 is moved to one side in the longitudinal direction. The side opposite to the insertion side of the lid body 6 (the other side in the longitudinal direction of the lid body 6) in a state where the both side portions 6a in the width direction are brought into contact with the inner part of the second groove portion f 2.
The stopper 16 that comes into contact with the end of the
It is connected to each of 3 and 4.
尚、前記一方のエンドブロック３の端面部と抜き止め
具16には、蓋体取り外し用の操作開口ｊが形成され、前
記他方のエンドブロック４側の抜け止め具16には、前記
舌片ｉを係入するための凹部ｋが設けられている。An operation opening j for removing the lid is formed in the end surface portion of the one end block 3 and the stopper 16, and the tongue piece i is provided in the stopper 16 on the other end block 4 side. Is provided with a recess k for engaging with.
而して、前記蓋体６を撓み変形させて当該蓋体６の巾
方向両側部分6aを前記第１溝部f1から第２溝部f2に係入
させると共に該蓋体６を自由状態に復帰させて、当該蓋
体６の長手方向他方側を抜け止め具16に当接させること
で、前記エンドブロック3,4の開口部が閉じられる。Thus, the lid body 6 is flexibly deformed to engage both widthwise side portions 6a of the lid body 6 from the first groove portion f 1 to the second groove portion f 2 and return the lid body 6 to the free state. Then, the other end of the lid body 6 in the longitudinal direction is brought into contact with the retaining member 16 to close the openings of the end blocks 3 and 4.
かゝる状態においては、前記蓋体６の巾方向両側部分
6aが第２溝部f2に位置することで、当該蓋体６の蓋面に
直交する方向への移動が規制されると共に、前記巾方向
両側部分6aが第２溝部f2の奥部に且つ蓋体６の長手方向
他方側が抜け止め具16に夫々当接することで、該蓋体６
の長手方向移動が阻止されるもので、当該蓋体６の開口
部閉じ姿勢が確実に拘束される。In such a state, both side portions of the lid body 6 in the width direction
6a is that located in the second groove portion f 2, the movement in the direction perpendicular to the lid surface of the lid 6 is restricted, the width direction both side portions 6a, and the back portion of the second groove portion f 2 The other side of the lid body 6 in the longitudinal direction is brought into contact with the retainer 16 so that the lid body 6
Is prevented from moving in the longitudinal direction, so that the opening closing posture of the lid body 6 is reliably restrained.
そして、前記一方のエンドブロック３においては、操
作開口ｊに指を通して蓋体６の長手方向他方側を持ち上
げ、前記他方のエンドブロック４においては、蓋体６の
舌片ｉに爪を引っ掛けて該蓋体６の長手方向他方側を持
ち上げて、蓋体６を撓ませて該蓋体６の長手方向他方側
の前記抜け止め具16に対する当接を解除し、かつ、該蓋
体６を長手方向他方側に引き抜くことで、前記エンドブ
ロック3,4の開口部が開かれる。Then, in the one end block 3, a finger is passed through the operation opening j to lift the other side in the longitudinal direction of the lid body 6, and in the other end block 4, a tongue piece i of the lid body 6 is hooked with a claw. The other side of the lid body 6 in the longitudinal direction is lifted to bend the lid body 6 to release the abutment of the retaining member 16 on the other side of the lid body 6 in the longitudinal direction, and to move the lid body 6 in the longitudinal direction. By pulling out to the other side, the openings of the end blocks 3 and 4 are opened.
第１図に戻って及び第６図に示すように、チャージャ
装置装着部の奥側には、前記入力端子11に対して補強部
材12とは反対側に電気的に連結される出力端子17が設け
られている。Returning to FIG. 1 and as shown in FIG. 6, an output terminal 17 electrically connected to the side opposite to the reinforcing member 12 with respect to the input terminal 11 is provided on the inner side of the charger device mounting portion. It is provided.
この出力端子17は、板バネ部材を折り曲げて弾性付勢
力を有せしめたものであって、前記入力端子11を介して
前記一方のエンドブロック３の当接部材ａを感光体ハウ
ジング７に付勢当接させる機能を有し、前記当接部材ａ
を感光体ハウジング７に付勢当接させる付勢手段を構成
している。The output terminal 17 is formed by bending a leaf spring member so as to have an elastic biasing force, and biases the contact member a of the one end block 3 to the photoconductor housing 7 via the input terminal 11. The abutting member a having a function of abutting
Urging means for urging and abutting against the photoconductor housing 7.
また、前記チャージケース２の前記他方のエンドブロ
ック４側の底部外面には、他方のエンドブロック４の当
接部材ａを感光体ハウジング７に付勢当接させるための
付勢手段18が設けられている。A biasing means 18 for biasing the contact member a of the other end block 4 to the photoconductor housing 7 is provided on the outer surface of the bottom of the charge case 2 on the side of the other end block 4. ing.
而して、前記一方のエンドブロック３における被ガイ
ド部材10をガイドレール９に挿通させた状態で、チャー
ジャ装置Ａを装置本体の奥側に押し込み、かつ、その途
中で前記他方のエンドブロック４の被ガイド部材10をガ
イドレール９に挿通させると共に、前記入力端子11を装
置本体側の出力端子17に電気的に連結させることで、前
記付勢手段18と前記出力端子17で構成した付勢手段とに
より、前記両エンドブロック3,4の当接部材ａが感光体
ハウジング７に付勢当接され、延いては、前記チャージ
ワイヤ５の軸芯を感光体１の回転軸芯と平行にする状態
で、前記チャージャ装置Ａが所定位置にセットされるよ
うになっている。Thus, with the guided member 10 of the one end block 3 being inserted into the guide rail 9, the charger device A is pushed into the rear side of the device main body, and the other end block 4 of the other end block 4 is inserted in the middle thereof. The guided member 10 is inserted into the guide rail 9 and the input terminal 11 is electrically connected to the output terminal 17 on the apparatus main body side, so that the biasing unit 18 and the output terminal 17 are provided. As a result, the contact members a of the end blocks 3 and 4 are urged and contacted with the photoconductor housing 7, and the axis of the charge wire 5 is made parallel to the axis of rotation of the photoconductor 1. In this state, the charger device A is set at a predetermined position.
尚、前記一方のエンドブロック３の当接部材ａを感光
体ハウジング７に付勢当接させるのに、前記入力端子11
を板バネの折り曲げ構造にして、それに弾性付勢力を有
せしめて付勢手段とするも良く、また、前記当接部材ａ
の付勢当接対象として感光体ハウジング７を例示した
が、その他の装置本体側の部材を利用することが可能で
あり、それらを本考案では被位置決め部材７と称する。In order to urge the contact member a of the one end block 3 into contact with the photoconductor housing 7, the input terminal 11
May be formed into a bent structure of a leaf spring, and an elastic biasing force may be applied to the structure to serve as a biasing means.
Although the photoconductor housing 7 is illustrated as the object to be urged and contacted with, the other members on the apparatus main body side can be used, and they are referred to as the positioned member 7 in the present invention.
ところで、上記の出力端子17または入力端子11による
当接部材ａの感光体ハウジング７に対する付勢当接にあ
って、前記チャージワイヤ５の芯出しを確実にする上
で、その付勢力を強く設定することが肝要であるが、単
純に付勢力を強くすると平板の入力端子11が撓んでしま
って、芯出しの確実性の面で問題を生じる不都合があ
る。しかし、前記入力端子11を補強部材12で受け止め支
持させたことで、上記出力端子17による付勢力を強くす
ることが可能であり、延いては、前記チャージワイヤ５
の芯出しを確実にすることができる。By the way, when the contact member a is biased and abutted against the photoconductor housing 7 by the output terminal 17 or the input terminal 11, the biasing force is strongly set to ensure the centering of the charge wire 5. However, if the biasing force is simply increased, the flat plate input terminal 11 is bent, which causes a problem in terms of reliability of centering. However, since the input terminal 11 is received and supported by the reinforcing member 12, the urging force of the output terminal 17 can be increased, and the charge wire 5 can be extended.
Can be surely centered.
また、上記の補強部材12を入力端子11の受け止め面の
全面に設けたことで、当該補強部材12に感光体表面に対
する放電のシールド機能を有せしめ得る利点がある。即
ち、前記補強部材12を入力端子11の受け止め面の全面に
設けていないと、前記チャージャ装置Ａを装置装着部に
所定通りに装着しなかった場合に、前記入力端子11から
感光体表面に向けて放電が行われて、例えば画像上の傾
きやムラを生じる不都合があるが、前記補強部材12を入
力端子11の受け止め面の全面に設けることでシールドが
達成され、上記の不都合を回避できるのである。Further, by providing the reinforcing member 12 on the entire receiving surface of the input terminal 11, there is an advantage that the reinforcing member 12 can have a function of shielding discharge from the surface of the photoconductor. That is, unless the reinforcing member 12 is provided on the entire receiving surface of the input terminal 11, when the charger device A is not mounted in the device mounting portion in a predetermined manner, the input terminal 11 faces the photosensitive member surface. However, there is a disadvantage that, for example, an inclination or unevenness occurs on the image when discharged, but by providing the reinforcing member 12 on the entire receiving surface of the input terminal 11, a shield is achieved and the above disadvantage can be avoided. is there.
もっとも、メンテナンスに際しては、十分に注意を払
って所定通りに装置装着部にチャージャ装置Ａが装着さ
れることから、あるいは、上記の不都合が生じたときに
は直ちに修正が成されることから、前記補強部材12を入
力端子11の受け止め面の全面に設けることは必須の要件
ではなく、必要な補強範囲にのみ補強部材12を設けるも
良い。However, at the time of maintenance, since the charger device A is attached to the device attachment portion in a predetermined manner with sufficient care, or when the above-mentioned inconvenience occurs, the reinforcement device is immediately corrected. Providing 12 on the entire receiving surface of the input terminal 11 is not an essential requirement, and the reinforcing member 12 may be provided only in a necessary reinforcing range.
以上説明したように本考案による画像形成装置のチャ
ージャ装置によれば、入力端子をエンドブロックの端部
に突設した補強部材に設け、その入力端子または本体側
に設けた出力端子で付勢手段を構成したので、充分な付
勢力を作用させてエンドブロックに設けた当接部材を本
体側の被位置決め部材に確実に付勢当接させることがで
き、チャージワイヤの芯出しを容易かつ確実におこなう
ことができる。そして、入力端子を金属板製としている
ことによってコストの低減を図ることができる。As described above, according to the charger device of the image forming apparatus of the present invention, the input terminal is provided on the reinforcing member protruding from the end portion of the end block, and the biasing means is provided by the input terminal or the output terminal provided on the main body side. Since a contact member provided on the end block can be reliably biased and abutted on the member to be positioned on the main body side by applying a sufficient biasing force, the charge wire can be easily and reliably centered. You can do it. Further, since the input terminal is made of a metal plate, the cost can be reduced.
第１図はチャージャ装置の縦断側面図、第２図はチャー
ジャ装置の平面図、第３図はチャージケースに対するエ
ンドブロックの取り付け説明の斜視図、第４図は蓋体を
取り外した状態のチャージャ装置の斜視図、第５図は係
入部への蓋体の取り付け説明図、第６図は入力端子と出
力端子の電気的連結部を示す詳細図であり、第７図は従
来例のチャージャ装置の縦断側面図である。 ２…チャージケース、３…エンドブロック、５…チャー
ジワイヤ、７…被位置決め部材（感光体ハウジング）、
11…入力端子、12…補強部材、17…出力端子、ａ…当接
部材。1 is a vertical side view of the charger device, FIG. 2 is a plan view of the charger device, FIG. 3 is a perspective view of the end block attachment to the charge case, and FIG. 4 is a charger device with a lid removed. FIG. 5, FIG. 5 is an explanatory view of attaching the lid to the engaging portion, FIG. 6 is a detailed view showing an electrical connection portion of the input terminal and the output terminal, and FIG. 7 is a conventional charger device. It is a vertical side view. 2 ... Charge case, 3 ... End block, 5 ... Charge wire, 7 ... Positioned member (photoconductor housing),
11 ... Input terminal, 12 ... Reinforcing member, 17 ... Output terminal, a ... Abutting member.
Claims (2)
のチャージャ装置において、チャージケースのチャージ
ャ装置挿入側の端部に、装置本体側の被位置決め部材に
当接する当接部材を備えたエンドブロックを設けると共
に、前記チャージケース内に張設されるチャージワイヤ
に対する入力端子を金属板製にする一方、前記エンドブ
ロックの端部に補強部材を突設し、その補強部材に前記
入力端子を設け、かつ、その入力端子または該入力端子
に対応する装置本体側に設けた出力端子のいずれか一方
により、前記当接部材を前記被位置決め部材に付勢当接
させるための付勢手段を構成してなることを特徴とする
画像形成装置のチャージャ装置。1. A charger device of an image forming apparatus which is insertable into and removable from an apparatus main body, wherein an end is provided at an end portion of the charge case on the charger device insertion side with an abutting member abutting against a positioned member on the apparatus main body side. A block is provided, and an input terminal for the charge wire stretched in the charge case is made of a metal plate, while a reinforcing member is projectingly provided at an end portion of the end block, and the input terminal is provided on the reinforcing member. Further, either one of the input terminal and the output terminal provided on the apparatus main body side corresponding to the input terminal constitutes urging means for urging the abutting member against the positioned member. A charger device for an image forming apparatus characterized by the following.
の全面に設けてある請求項（１）に記載された画像形成
装置のチャージャ装置。2. The charger device for an image forming apparatus according to claim 1, wherein the reinforcing member is provided on the entire receiving surface of the input terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989003403U JPH089727Y2 (en) | 1989-01-15 | 1989-01-15 | Charger device of image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989003403U JPH089727Y2 (en) | 1989-01-15 | 1989-01-15 | Charger device of image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0295348U JPH0295348U (en) | 1990-07-30 |
| JPH089727Y2 true JPH089727Y2 (en) | 1996-03-21 |
Family
ID=31205010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989003403U Expired - Lifetime JPH089727Y2 (en) | 1989-01-15 | 1989-01-15 | Charger device of image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089727Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58126544A (en) * | 1981-12-23 | 1983-07-28 | Toshiba Corp | Corona discharger of image forming device |
-
1989
- 1989-01-15 JP JP1989003403U patent/JPH089727Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0295348U (en) | 1990-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |