JPH09319239A - Electrophotographic device and contact spring - Google Patents
Electrophotographic device and contact springInfo
- Publication number
- JPH09319239A JPH09319239A JP13622696A JP13622696A JPH09319239A JP H09319239 A JPH09319239 A JP H09319239A JP 13622696 A JP13622696 A JP 13622696A JP 13622696 A JP13622696 A JP 13622696A JP H09319239 A JPH09319239 A JP H09319239A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- spring
- voltage power
- transfer roller
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、レーザビームプリ
ンタ等の電子写真装置に関し、特に、転写ローラへの高
圧電源接続構造を簡略化した電子写真装置及びそれに用
いるのに好適な接点ばねに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic apparatus such as a laser beam printer, and more particularly to an electrophotographic apparatus having a simplified structure for connecting a high voltage power source to a transfer roller and a contact spring suitable for use therein.
【０００２】[0002]
【従来の技術】従来、レーザビームプリンタ等の電子写
真装置では、感光ドラムを帯電させるための帯電器、及
び感光ドラム上のトナー像を記録紙に転写させるための
転写ローラに高電圧を使用しており、このため、装置内
部に高圧電源基盤を設けている。そしてこの高圧電源基
盤から転写ローラに対する高圧電源接続のための部品と
しては、転写ローラに対して直接接触するように或いは
転写ローラを支持した導電性の軸受に対して接触するよ
うに設けられた接点用の板ばねと、その板ばねと高圧電
源基盤とを接続するハーネスが使用されていた。2. Description of the Related Art Conventionally, in an electrophotographic apparatus such as a laser beam printer, a high voltage is used for a charger for charging a photosensitive drum and a transfer roller for transferring a toner image on the photosensitive drum onto a recording paper. For this reason, a high-voltage power supply board is provided inside the device. As a component for connecting the high-voltage power supply from the high-voltage power supply base to the transfer roller, a contact provided so as to directly contact the transfer roller or to a conductive bearing supporting the transfer roller. A leaf spring for a vehicle and a harness for connecting the leaf spring and the high-voltage power supply board have been used.
【０００３】[0003]
【発明が解決しようとする課題】しかし、かかる従来の
構成では、板ばねをねじ止め等によって固定する作業及
びハーネスを接続する作業を必要とし、これらの作業は
面倒であるので、組立工数を増加させてコストアップの
原因となるという問題があった。また、板ばねはコイル
ばね等に比べてコストが高いため、この点からもコスト
アップの原因となっていた。However, such a conventional structure requires the work of fixing the leaf spring by screwing or the like and the work of connecting the harness. Since these works are troublesome, the number of assembling steps is increased. There was a problem that it would cause cost increase. Further, since the leaf spring is higher in cost than the coil spring and the like, this also causes a cost increase.
【０００４】本発明はかかる問題点に鑑みてなされたも
ので、組立作業を簡単に行い得る構成の高圧電源接続構
造を備えた電子写真装置、及びその電子写真装置に用い
るのに好適な且つ板ばねに比べて安価で且つ取付容易な
接点ばねを提供することを目的とする。The present invention has been made in view of the above problems, and is an electrophotographic apparatus provided with a high-voltage power supply connecting structure having a structure capable of easily performing an assembling work, and a plate suitable for use in the electrophotographic apparatus. An object of the present invention is to provide a contact spring which is cheaper than a spring and easy to mount.
【０００５】[0005]
【課題を解決するための手段】本発明は、転写ローラに
対する高圧電源の接続機構を簡略化するために、高圧電
源基盤に接点とそれに導通する接点ばねを設けておき、
この高圧電源基盤を装置本体内の所定位置にセットした
時に、前記接点ばねが転写ローラに導通した導電部材に
接触し、導通するように構成したものである。この構成
により、従来用いていたハーネスを省略でき、単に高圧
電源基盤を所定位置にセットするのみで、転写ローラに
対する高圧電源の接続が可能となり、組立作業を簡略化
してコストダウンを図ることができる。According to the present invention, in order to simplify the connection mechanism of a high voltage power source to a transfer roller, a high voltage power source substrate is provided with a contact and a contact spring which conducts to the contact.
When the high-voltage power supply board is set at a predetermined position in the main body of the apparatus, the contact spring comes into contact with a conductive member electrically connected to the transfer roller so as to be electrically connected. With this configuration, the harness conventionally used can be omitted, the high voltage power source can be connected to the transfer roller only by setting the high voltage power source substrate at a predetermined position, and the assembly work can be simplified and the cost can be reduced. .
【０００６】また、本発明は、簡単な構成の接点ばねを
提供するため、コイルばねの一端を直角に起こしてリン
グ状とし、リング状のリング接点部を備えた接点ばねと
したものである。このように、本発明の接点ばねは、通
常のコイルばねの一部をわずかに加工しただけであるの
で、安価に製造可能であり、また、使用に当たっては、
リング接点部を突出させ得るスリットとコイルばね部を
収容する空間を備えた取付用ケース内に入れ、その取付
用ケースを基盤等に取り付けるのみで良いので、取付作
業をきわめて容易とできる。Further, in order to provide a contact spring having a simple structure, the present invention provides a contact spring having a ring-shaped ring contact portion by raising one end of a coil spring at a right angle. In this way, the contact spring of the present invention can be manufactured at low cost because only a part of the ordinary coil spring is slightly processed, and in use,
Since it suffices that the ring contact portion is inserted into a mounting case having a space for accommodating the slit and the coil spring portion and the mounting case is mounted on a base or the like, the mounting work can be extremely easy.
【０００７】[0007]
【発明の実施の形態】本発明の電子写真装置は、装置本
体内の所定位置に設けられた転写ローラに対して電気的
に導通するように導電部材を設け、一方、高圧電源基盤
には、転写ローラに対する高圧電源接続用の接点を設け
ると共にその接点に導通するように接点ばねを設けてお
き、更に、その高圧電源基盤を所定位置にセットした時
に前記接点ばねが前記導電部材に接触して導通するよう
に構成したものである。BEST MODE FOR CARRYING OUT THE INVENTION The electrophotographic apparatus of the present invention is provided with a conductive member so as to be electrically conducted to a transfer roller provided at a predetermined position in the apparatus main body, while a high voltage power source board is provided with A contact for connecting a high-voltage power supply to the transfer roller is provided and a contact spring is provided so as to be electrically connected to the contact, and when the high-voltage power supply board is set at a predetermined position, the contact spring comes into contact with the conductive member. It is configured to conduct electricity.
【０００８】本発明はこの構成により、高圧電源基盤を
所定位置にセットすると、その高圧電源基盤に設けてい
る接点ばねが転写ローラに導通した導電部材に接触して
導通し、転写ローラに対して高圧電源を接続でき、転写
ローラに対する高圧電源接続動作を簡略化できる。According to the present invention, when the high-voltage power supply board is set at a predetermined position, the contact spring provided on the high-voltage power supply board is brought into contact with the conductive member which is electrically connected to the transfer roller to be electrically connected to the transfer roller. A high voltage power source can be connected, and the operation of connecting the high voltage power source to the transfer roller can be simplified.
【０００９】本発明の接点ばねは、コイルばね部と、そ
のコイルばね部の一端にコイルばね部と一体に、且つ前
記コイルばね部の軸線に平行な面内にリング状に形成さ
れたリング接点部とを有することを特徴とするものであ
る。この構成の接点ばねは、リング接点部を突出させ得
るスリットとコイルばね部を収容する空間を備えた取付
用ケース内に、リング接点部が前記スリットから突出す
るように入れ且つリング接点部とは反対側の端部を基盤
等に固定して設けた接点に着座させた状態とすることに
より、前記基盤等に設けた接点に導通した状態に簡単に
取り付けることができ、且つリング接点部をコイルばね
部のばね力で相手方の接点に押し付けることにより、確
実な導通を確保でき、しかも、リング接点部は相手方の
接点に対して、リング接点部に平行方向に相対的に移動
させることでリング接点部に好ましくない変形を生じる
ことなく接触状態としたり、離したりすることができ、
この接点ばねと相手側の接点との接触及び解除動作をき
わめて容易に行うことができる。A contact spring according to the present invention comprises a coil spring portion, a ring contact formed integrally with the coil spring portion at one end of the coil spring portion, and in a ring shape in a plane parallel to the axis of the coil spring portion. And a section. The contact spring of this configuration is such that the ring contact portion is inserted into a mounting case having a slit capable of protruding the ring contact portion and a space for accommodating the coil spring portion so that the ring contact portion protrudes from the slit, and By placing the end on the opposite side on the contact provided by fixing it to the base or the like, it can be easily attached to the contact provided on the base or the like in a conductive state, and the ring contact part is coiled. The spring force of the spring part pushes it against the contact of the other party to ensure reliable conduction. Moreover, the ring contact is moved by moving the ring contact relative to the other contact in the direction parallel to the ring contact. The parts can be brought into contact with or separated from each other without causing undesirable deformation.
The contact and release operations of the contact spring and the contact on the other side can be performed very easily.
【００１０】[0010]
【実施例】以下、図面に示す実施例を説明する。図１は
本発明の一実施例による電子写真装置の概略断面図、図
２はその電子写真装置を、開閉部を開いて示す概略斜視
図である。１は装置本体、２はその装置本体１に対して
開閉可能な開閉部、３は記録紙、４は記録紙カセット、
５は記録紙カセット内の記録紙３を繰り出すフィードロ
ーラ、６は記録紙３を更に下流に搬送する送りローラ、
７は感光ドラム、８はその感光ドラム７を備えたプロセ
スカートリッジであり、内部に帯電器、現像装置、クリ
ーナ等を備えている。９は感光ドラム７を記録情報に応
じて露光させるレーザスキャンユニット、１０は感光ド
ラム７上のトナー像を記録紙３に転写させる転写ロー
ラ、１１は定着ローラ、１２は排出ローラである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described below. FIG. 1 is a schematic sectional view of an electrophotographic apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic perspective view showing the electrophotographic apparatus with an opening / closing section opened. 1 is an apparatus main body, 2 is an opening / closing part that can be opened and closed with respect to the apparatus main body 1, 3 is recording paper, 4 is a recording paper cassette,
Reference numeral 5 is a feed roller for feeding the recording paper 3 in the recording paper cassette, 6 is a feed roller for conveying the recording paper 3 further downstream,
Reference numeral 7 is a photosensitive drum, and 8 is a process cartridge including the photosensitive drum 7, which is internally provided with a charger, a developing device, a cleaner and the like. Reference numeral 9 is a laser scanning unit that exposes the photosensitive drum 7 according to recording information, 10 is a transfer roller that transfers the toner image on the photosensitive drum 7 onto the recording paper 3, 11 is a fixing roller, and 12 is a discharge roller.
【００１１】１５は、プロセスカートリッジ８内の帯電
器や転写ローラ１０に高電圧を印加するための高圧電源
基盤であり、その一部が転写ローラ１０の下方に位置す
るように且つガイドレール１６に移動可能に保持されて
いる。そして、高圧電源基盤１５をガイドレール１６に
沿ってスライドさせることで、装置本体１内の所定位置
にセット可能である。Reference numeral 15 denotes a high-voltage power supply base for applying a high voltage to the charger in the process cartridge 8 and the transfer roller 10. A part of the high-voltage power supply base is located below the transfer roller 10 and is provided on the guide rail 16. It is movably held. Then, by sliding the high-voltage power supply board 15 along the guide rails 16, the high-voltage power supply board 15 can be set at a predetermined position in the apparatus main body 1.
【００１２】図３はこの高圧電源基盤１５を装着する部
分を示す概略斜視図、図４（ａ）、（ｂ）はそれぞれ転
写ローラに対する高圧電源接続部を異なる状態で示す概
略断面図、図５は図４（ａ）のＡ−Ａ矢視断面図であ
る。転写ローラ１０の軸１０ａには導電性材料で作られ
た軸受１７が取り付けられており、その軸受１７の下端
には導電性材料で作られたコイルばねからなる転写ばね
１８の上端が装着されている。一方、その転写ばね１８
の下端は、支持部材２０に形成されている円筒部２０ａ
内の円筒状の凹部内に着座させられている。なお、支持
部材２０は装置本体１に保持されている。かくして、転
写ローラ１０はこの転写ばね１８によって押し上げら
れ、感光ドラム７（図１参照）に押し付けられることと
なり、また、転写ばね１８は軸受１７を介して転写ロー
ラ１０に電気的に導通することとなる。換言すれば、転
写ばね１８は転写ローラに対して電気的に導通するよう
に設けられた導電部材を構成する。FIG. 3 is a schematic perspective view showing a portion on which the high-voltage power supply board 15 is mounted, and FIGS. 4 (a) and 4 (b) are schematic cross-sectional views showing the high-voltage power supply connection portion for the transfer roller in different states, respectively. FIG. 4 is a sectional view taken along the line AA of FIG. A bearing 17 made of a conductive material is attached to the shaft 10a of the transfer roller 10, and an upper end of a transfer spring 18 made of a coil spring made of a conductive material is attached to a lower end of the bearing 17. There is. On the other hand, the transfer spring 18
The lower end of the cylindrical portion 20a formed on the support member 20.
It is seated in a cylindrical recess therein. The support member 20 is held by the apparatus body 1. Thus, the transfer roller 10 is pushed up by the transfer spring 18 and pressed against the photosensitive drum 7 (see FIG. 1), and the transfer spring 18 is electrically connected to the transfer roller 10 via the bearing 17. Become. In other words, the transfer spring 18 constitutes a conductive member provided so as to be electrically connected to the transfer roller.
【００１３】転写ばね１８を装着した円筒部２０ａの底
部には転写ローラ１０に平行に延びるスリット２１が形
成されており、転写ばね１８の一部を露出させている。
一方、高圧電源基盤１５には、その一端近傍に転写ロー
ラに対する高圧電源接続用の接点２３が設けられてお
り、その接点２３の上にはその接点２３に導通するよう
に接点ばね２４が配置され、取付用ケース２５によって
高圧電源基盤１５に取り付けられている。この接点ばね
２４は、図６（ａ）、（ｂ）、（ｃ）に示すように、導
電性材料で作られたコイルばね部２４ａと、そのコイル
ばね部２４ａの一端にコイルばね部と一体に、且つ前記
コイルばね部の軸線に平行な面内にリング状に形成され
たリング接点部２４ｂとを有するものである。A slit 21 extending parallel to the transfer roller 10 is formed at the bottom of the cylindrical portion 20a on which the transfer spring 18 is mounted, and a part of the transfer spring 18 is exposed.
On the other hand, the high-voltage power supply board 15 is provided with a contact 23 for connecting the high-voltage power supply to the transfer roller near one end thereof, and a contact spring 24 is arranged above the contact 23 so as to be electrically connected to the contact 23. It is mounted on the high-voltage power supply board 15 by the mounting case 25. As shown in FIGS. 6A, 6B, and 6C, the contact spring 24 includes a coil spring portion 24a made of a conductive material, and one end of the coil spring portion 24a integrated with the coil spring portion. And a ring contact portion 24b formed in a ring shape in a plane parallel to the axis of the coil spring portion.
【００１４】図３〜図５において、取付用ケース２５は
高圧電源基盤１５に取り付けるための爪２５ａ、２５ｂ
を備えており、この爪２５ａ、２５ｂにより高圧電源基
盤１５に対して着脱可能である。更に、この取付用ケー
ス２５は、接点ばね２４のコイルばね部２４ａを収容す
る円筒状の空間２７と、その空間２７の上端に形成され
リング接点部２４ｂを上方に突出させ得るスリット２８
を備えている。このスリット２８は、取付用ケース２５
を高圧電源基盤１５に取り付けた状態では、転写ローラ
１０に平行に形成されている。また、接点ばね２４及び
取付用ケース２５の寸法及び取付位置は、高圧電源基盤
１５を図４（ｂ）に示す位置から装置本体１内の所定位
置に挿入した時に、図４（ａ）に示すように、リング接
点部２４ｂが支持部材２０の円筒部２０ａの下端に形成
しているスリット２１内に入り、その位置にある転写ば
ね１８に接触し、且つ少し押し下げられるように定めら
れている。3 to 5, the mounting case 25 is provided with claws 25a and 25b for mounting on the high-voltage power supply board 15.
The high voltage power supply board 15 can be attached and detached by the claws 25a and 25b. Further, the mounting case 25 has a cylindrical space 27 that accommodates the coil spring portion 24a of the contact spring 24, and a slit 28 that is formed at the upper end of the space 27 and that allows the ring contact portion 24b to project upward.
It has. This slit 28 is a mounting case 25.
Is attached to the high-voltage power supply board 15, the roller is formed parallel to the transfer roller 10. The dimensions and mounting positions of the contact spring 24 and the mounting case 25 are shown in FIG. 4A when the high-voltage power supply board 15 is inserted from the position shown in FIG. 4B to a predetermined position in the apparatus body 1. As described above, the ring contact portion 24b enters the slit 21 formed at the lower end of the cylindrical portion 20a of the support member 20, contacts the transfer spring 18 at that position, and is slightly depressed.
【００１５】なお、図３において、３０ｂは、プロセス
カートリッジ８（図１参照）の下面に形成されている接
点に対する接点ばね先端のリング接点部である。このリ
ング接点部３０ｂを備えた接点ばねも接点ばね２４と同
様な構成のものであり、取付用ケース２５に接点ばね２
４と同様な構造で保持されている。ただし、リング接点
部３０ｂは、リング接点部２４ｂとは直交する方向に即
ち転写ローラ１０に対して直交する方向に配置されてい
る。これは、高圧電源基盤１５を所定位置にセットした
後、プロセスカートリッジ８（図１参照）が、転写ロー
ラ１０に対して直交する方向に挿入され、リング接点部
３０ｂに接触させられるためである。In FIG. 3, 30b is a ring contact portion at the tip of a contact spring for a contact formed on the lower surface of the process cartridge 8 (see FIG. 1). The contact spring having the ring contact portion 30b has the same structure as the contact spring 24, and the contact spring 2 is attached to the mounting case 25.
It is held in a structure similar to that of No. 4. However, the ring contact portion 30b is arranged in a direction orthogonal to the ring contact portion 24b, that is, in a direction orthogonal to the transfer roller 10. This is because the process cartridge 8 (see FIG. 1) is inserted in the direction orthogonal to the transfer roller 10 after the high-voltage power supply board 15 is set at a predetermined position and brought into contact with the ring contact portion 30b.
【００１６】次に、上記構成の装置について、転写ロー
ラに対する電源接続部の組立方法を説明する。取付用ケ
ース２５の空間２７内に接点ばね２４を入れ且つリング
接点部２４ｂを取付用ケース２５のスリット２８から突
出させた状態で、また、取付用ケース２５の他の空間内
にプロセスカートリッジ用の接点ばねをセットした状態
で、その取付用ケース２５を爪２５ａ、２５ｂを用いて
高圧電源基盤１５に取り付ける。これにより接点ばね２
４が高圧電源基盤１５に対して、接点２３に導通する状
態で取り付けられる。次いで、この高圧電源基盤１５を
装置本体１内の所定位置にガイドレール１６に沿って所
定位置に押し込む。これにより、図４（ａ）に示すよう
に、リング接点部２４ｂが支持部材２０の円筒部２０ａ
の下端に形成しているスリット２１内に入り、その位置
にある転写ばね１８に接触し、且つ少し押し下げられ
る。また、この時、リング接点部２４ｂは、そのリング
状の面方向に移動してスリット２１内に入り転写ばね１
８で押し下げられるため、リング接点部２４ｂに不安定
な変形が生じることはなく、安定して押し下げられるこ
ととなる。かくして、接点ばね２４の一端のリング接点
部２４ｂがコイルばね部２４ａのばね力によって転写ば
ね１８に押し付けられ、他端が接点２３に押し付けられ
た状態に保持され、確実な導通が確保される。以上のよ
うにして、きわめて簡単な操作で転写ローラに対して電
源を接続することができる。Next, the method of assembling the power supply connecting portion with respect to the transfer roller in the apparatus having the above structure will be described. The contact spring 24 is placed in the space 27 of the mounting case 25 and the ring contact portion 24b is projected from the slit 28 of the mounting case 25. With the contact spring set, the mounting case 25 is attached to the high-voltage power supply base 15 using the claws 25a and 25b. As a result, the contact spring 2
4 is attached to the high-voltage power supply board 15 in a state of being electrically connected to the contacts 23. Then, the high-voltage power supply board 15 is pushed into a predetermined position in the apparatus main body 1 along the guide rail 16 to a predetermined position. As a result, as shown in FIG. 4A, the ring contact portion 24b becomes the cylindrical portion 20a of the support member 20.
Enters into the slit 21 formed at the lower end of the contact hole, contacts the transfer spring 18 at that position, and is slightly pushed down. Further, at this time, the ring contact portion 24b moves in the ring-shaped surface direction and enters the slit 21, and the transfer spring 1
Since it is pushed down by 8, the ring contact portion 24b will not be unstablely deformed, and can be pushed down stably. Thus, the ring contact portion 24b at one end of the contact spring 24 is pressed against the transfer spring 18 by the spring force of the coil spring portion 24a, and the other end is pressed against the contact 23, so that reliable conduction is ensured. As described above, the power supply can be connected to the transfer roller by an extremely simple operation.
【００１７】なお、上記実施例では、転写ローラ１０を
感光ドラム７に押圧するための転写ばね１８に接点ばね
２４のリング接点部２４ｂを接触させて導通を取ってい
るが、本発明はこの構成に限らず、転写ばね１８とは別
に転写ローラ１０に導通した適当な導電部材を設け、そ
れにリング接点部２４ｂを接触させる構成としてもよ
い。ただし、図示実施例のように、転写ばね１８を導電
部材として使用すると、部品点数を削減できる利点が得
られるので好ましい。また、上記実施例では、高圧電源
基盤１５をガイドレール１６に沿って挿入することによ
り、所定位置にセットする構成としているが、挿入以外
の装着方法を採用してもよい。In the above embodiment, the ring contact portion 24b of the contact spring 24 is brought into contact with the transfer spring 18 for pressing the transfer roller 10 against the photosensitive drum 7, and the present invention has this structure. Not limited to the transfer spring 18, a suitable conductive member that is electrically connected to the transfer roller 10 may be provided, and the ring contact portion 24b may be brought into contact therewith. However, it is preferable to use the transfer spring 18 as a conductive member as in the illustrated embodiment, because the advantage of reducing the number of parts can be obtained. In the above embodiment, the high-voltage power supply board 15 is inserted along the guide rails 16 to set it at a predetermined position, but a mounting method other than insertion may be adopted.
【００１８】[0018]
【発明の効果】以上に説明したように、本発明は、高圧
電源基盤に接点とそれに連結された接点ばねを設けてお
き、この高圧電源基盤を装置本体内の所定位置にセット
した時に、前記接点ばねが転写ローラに導通した導電部
材に接触し、導通するように構成したことにより、従来
用いていたハーネスを省略でき、単に高圧電源基盤を所
定位置にセットするのみで、転写ローラに対する高圧電
源を接続でき、組立作業を簡略化してコストダウンを図
ることができるという効果を有している。As described above, according to the present invention, the high-voltage power supply board is provided with the contacts and the contact springs connected thereto, and when the high-voltage power supply board is set at a predetermined position in the apparatus body, Since the contact spring contacts the conductive member that is electrically connected to the transfer roller and makes it conductive, the harness used in the past can be omitted, and the high voltage power supply for the transfer roller can be simply set at the predetermined position. It is possible to connect to each other, and it is possible to simplify the assembly work and reduce the cost.
【００１９】また、本発明の接点ばねは、コイルばねの
一端を直角に起こしてリング状とし、リング状のリング
接点部を構成したことにより、きわめて安価に製造可能
であり、しかもその接点ばねの取付に当たっては、単
に、リング接点部を突出させ得るスリットとコイルばね
部を収容する空間を備えた取付用ケース内に入れ、その
取付用ケースを基盤等に取り付けるのみで定位置に取り
付けることができ、取付作業をきわめて容易とできると
いう効果を有している。Further, the contact spring of the present invention can be manufactured at an extremely low cost by constructing a ring-shaped ring contact portion by raising one end of the coil spring at a right angle to form a ring shape. When mounting, simply place it in a mounting case that has a slit that allows the ring contact part to project and a space that houses the coil spring part, and then mount the mounting case on a base etc. to mount it in place. It has the effect that the mounting work can be made extremely easy.
【図１】本発明の一実施例による電子写真装置の概略断
面図FIG. 1 is a schematic sectional view of an electrophotographic apparatus according to an embodiment of the present invention.
【図２】図１に示す電子写真装置を、開閉部を開いて示
す概略斜視図FIG. 2 is a schematic perspective view showing the electrophotographic apparatus shown in FIG. 1 with an opening / closing section open.
【図３】図１に示す電子写真装置において、高圧電源基
盤を装着する部分を示す概略斜視図3 is a schematic perspective view showing a portion to which a high-voltage power supply board is attached in the electrophotographic apparatus shown in FIG.
【図４】図１に示す電子写真装置の転写ローラに対する
高圧電源接続部を示すもので、（ａ）は転写ローラに対
して高圧電源を接続した状態を示す概略斜視図、（ｂ）
は接続する前の状態を示す概略斜視図4A and 4B are schematic perspective views showing a state in which a high voltage power source is connected to the transfer roller of the electrophotographic apparatus shown in FIG. 1, and FIG.
Is a schematic perspective view showing the state before connection
【図５】図４（ａ）のＡ−Ａ矢視断面図5 is a cross-sectional view taken along the line AA of FIG.
【図６】図１の実施例に用いた接点ばねを示すもので、
（ａ）は概略正面図、（ｂ）は概略側面図、（ｃ）は概
略平面図6 shows a contact spring used in the embodiment of FIG.
(A) is a schematic front view, (b) is a schematic side view, and (c) is a schematic plan view.
１ 装置本体 ２ 開閉部 ３ 記録紙 ４ 記録紙カセット ５ フィードローラ ７ 感光ドラム ８ プロセスカートリッジ ９ レーザスキャンユニット １０ 転写ローラ １１ 定着ローラ １２ 排出ローラ １５ 高圧電源基盤 １６ ガイドレール １７ 軸受 １８ 転写ばね ２０ 支持部材 ２１ スリット ２３ 接点 ２４ 接点ばね ２４ａ コイルばね部 ２４ｂ リング接点部 ２５ 取付用ケース ２７ 空間 ２８ スリット 1 Device Main Body 2 Opening / Closing Part 3 Recording Paper 4 Recording Paper Cassette 5 Feed Roller 7 Photosensitive Drum 8 Process Cartridge 9 Laser Scan Unit 10 Transfer Roller 11 Fixing Roller 12 Ejection Roller 15 High Voltage Power Supply Base 16 Guide Rail 17 Bearing 18 Transfer Spring 20 Supporting Member 21 Slit 23 Contact 24 Contact Spring 24a Coil Spring 24b Ring Contact 25 Mounting Case 27 Space 28 Slit
Claims (2)
電気的に導通するように設けられた導電部材と、前記転
写ローラに対する高圧電源接続用の接点及びその接点に
導通するように設けられた接点ばねを備えた高圧電源基
盤を有し、その高圧電源基盤を所定位置にセットした時
に前記接点ばねが前記導電部材に接触して導通する構成
としたことを特徴とする電子写真装置。1. A transfer roller, a conductive member provided to be electrically connected to the transfer roller, a contact for connecting a high-voltage power source to the transfer roller, and a contact provided to the contact. An electrophotographic apparatus comprising a high-voltage power supply board having a contact spring, and the contact spring is brought into contact with the conductive member to conduct electricity when the high-voltage power supply board is set at a predetermined position.
端にコイルばね部と一体に、且つ前記コイルばね部の軸
線に平行な面内にリング状に形成されたリング接点部と
を有する接点ばね。2. A contact having a coil spring portion and a ring contact portion integrally formed with the coil spring portion at one end of the coil spring portion and formed in a ring shape in a plane parallel to the axis of the coil spring portion. Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13622696A JPH09319239A (en) | 1996-05-30 | 1996-05-30 | Electrophotographic device and contact spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13622696A JPH09319239A (en) | 1996-05-30 | 1996-05-30 | Electrophotographic device and contact spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09319239A true JPH09319239A (en) | 1997-12-12 |
Family
ID=15170245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13622696A Pending JPH09319239A (en) | 1996-05-30 | 1996-05-30 | Electrophotographic device and contact spring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09319239A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010217531A (en) * | 2009-03-17 | 2010-09-30 | Brother Ind Ltd | Image forming apparatus |
| US7853169B2 (en) * | 2006-10-31 | 2010-12-14 | Kyocera Mita Corporation | Roller member urging mechanism and image forming apparatus |
| JP2011064925A (en) * | 2009-09-17 | 2011-03-31 | Brother Industries Ltd | Image forming apparatus and electrode member with the same |
| US7945184B2 (en) | 2005-05-30 | 2011-05-17 | Brother Kogyo Kabushiki Kaisha | Process cartridge with member for electrical connection to image-forming device |
| CN102193421A (en) * | 2010-03-01 | 2011-09-21 | 富士施乐株式会社 | Roll supporting mechanism, image forming apparatus and assembly body |
| JP2012068683A (en) * | 2012-01-12 | 2012-04-05 | Brother Ind Ltd | Electrode |
| JP2014109634A (en) * | 2012-11-30 | 2014-06-12 | Brother Ind Ltd | Electrode and image forming apparatus |
| JP2014232329A (en) * | 2014-07-31 | 2014-12-11 | 株式会社リコー | Image forming device |
| JP2017058623A (en) * | 2015-09-18 | 2017-03-23 | 船井電機株式会社 | Electric contact structure and image forming apparatus including the same |
| US9946186B2 (en) | 2016-03-11 | 2018-04-17 | Kyocera Document Solutions Inc. | Image forming apparatus including unit attachable to and detachable from apparatus main body, conductive member disposed in unit, contact spring disposed in apparatus main body and configured to come in electrically conductive contact with conductive member, and hollow cylinder disposed in apparatus main body and retaining contact spring |
-
1996
- 1996-05-30 JP JP13622696A patent/JPH09319239A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7945184B2 (en) | 2005-05-30 | 2011-05-17 | Brother Kogyo Kabushiki Kaisha | Process cartridge with member for electrical connection to image-forming device |
| US7853169B2 (en) * | 2006-10-31 | 2010-12-14 | Kyocera Mita Corporation | Roller member urging mechanism and image forming apparatus |
| JP2010217531A (en) * | 2009-03-17 | 2010-09-30 | Brother Ind Ltd | Image forming apparatus |
| US8401418B2 (en) | 2009-03-17 | 2013-03-19 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus |
| JP2011064925A (en) * | 2009-09-17 | 2011-03-31 | Brother Industries Ltd | Image forming apparatus and electrode member with the same |
| CN102193421A (en) * | 2010-03-01 | 2011-09-21 | 富士施乐株式会社 | Roll supporting mechanism, image forming apparatus and assembly body |
| US8571433B2 (en) | 2010-03-01 | 2013-10-29 | Fuji Xerox Co., Ltd. | Roll supporting mechanism, image forming apparatus and assembly body |
| JP2012068683A (en) * | 2012-01-12 | 2012-04-05 | Brother Ind Ltd | Electrode |
| JP2014109634A (en) * | 2012-11-30 | 2014-06-12 | Brother Ind Ltd | Electrode and image forming apparatus |
| JP2014232329A (en) * | 2014-07-31 | 2014-12-11 | 株式会社リコー | Image forming device |
| JP2017058623A (en) * | 2015-09-18 | 2017-03-23 | 船井電機株式会社 | Electric contact structure and image forming apparatus including the same |
| US9946186B2 (en) | 2016-03-11 | 2018-04-17 | Kyocera Document Solutions Inc. | Image forming apparatus including unit attachable to and detachable from apparatus main body, conductive member disposed in unit, contact spring disposed in apparatus main body and configured to come in electrically conductive contact with conductive member, and hollow cylinder disposed in apparatus main body and retaining contact spring |
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