JPH0827568B2 - Transfer paper separating device in image forming apparatus - Google Patents
Transfer paper separating device in image forming apparatusInfo
- Publication number
- JPH0827568B2 JPH0827568B2 JP2175594A JP17559490A JPH0827568B2 JP H0827568 B2 JPH0827568 B2 JP H0827568B2 JP 2175594 A JP2175594 A JP 2175594A JP 17559490 A JP17559490 A JP 17559490A JP H0827568 B2 JPH0827568 B2 JP H0827568B2
- Authority
- JP
- Japan
- Prior art keywords
- guide member
- transfer paper
- mounting shaft
- claw
- separation
- 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 - Fee Related
Links
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は複写機等の画像形成装置において、転写後の
転写紙を感光体表面から強制的に分離させる転写紙の分
離装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer paper separating device for forcibly separating the transfer paper after transfer from the surface of the photoconductor in an image forming apparatus such as a copying machine. .
一般的な分離装置は、感光体ドラムの表面に接して分
離爪を設け、転写後の転写紙をこの分離爪によってドラ
ム表面から分離させるようにしている。In a general separating device, a separating claw is provided in contact with the surface of the photosensitive drum, and the transfer paper after transfer is separated from the drum surface by the separating claw.
また、分離された転写紙が分離爪を感光体ドラム側に
押してドラム表面にダメージを与えたり下流側に巻上が
ったりしないようい、分離後の転写紙を直ちに定着部へ
の搬送路に向けてガイドするガイド部材を分離爪の近く
に設けている。Also, to prevent the separated transfer paper from pushing the separation claw toward the photoconductor drum side and damaging the drum surface or rolling it up to the downstream side, immediately guide the separated transfer paper toward the conveyance path to the fixing unit. A guide member is provided near the separation claw.
この場合、分離爪は取付軸に対し軸方向に嵌合させた
状態で両側にEリング等の位置規制部材を設けて軸方向
に位置固定している。さらに、ガイド部材については角
度を一定に保持するために、ねじ等によって固定してい
る。In this case, the separation claws are axially fixed by being provided with position restriction members such as E-rings on both sides in a state of being fitted in the mounting shaft in the axial direction. Further, the guide member is fixed with screws or the like in order to keep the angle constant.
このため、両者の取付けのための部品点数が多くな
り、コスト高となるとともに、取付作業が面倒となって
いた。For this reason, the number of parts for mounting both of them is large, the cost is high, and the mounting work is troublesome.
また、分離爪を先端摩擦等に応じて取替える場合に、 (イ)取付軸ごと取外した上で、この取付軸に対して分
離爪を脱着しなければならない。Further, when replacing the separation claw according to the friction of the tip, etc., (a) the separation claw must be removed from the mounting shaft and then detached from the mounting shaft.
(ロ)この分離爪の脱着時にはEリング等の位置規制部
材の脱着という面倒な作業が必要となる。(B) When attaching and detaching the separation claws, a laborious work of attaching and detaching the position regulating member such as the E-ring is required.
(ハ)しかも、この際に近接したガイド部材が邪魔にな
る。(C) In addition, the guide members that are close to each other get in the way at this time.
このため、分離爪の交換作業の能率が悪いものとなっ
ていた。For this reason, the efficiency of replacement work of the separation claw is poor.
そこで本発明は、分離爪およびガイド部材の取付構造
が簡単で、部品点数が少なく、分離爪の交換作業が容易
な画像形成装置における転写紙の分離装置を提供するも
のである。Therefore, the present invention provides a transfer paper separating device in an image forming apparatus, which has a simple mounting structure for the separating claw and the guide member, has a small number of parts, and facilitates replacement work of the separating claw.
請求項1の発明は、次の構成としたものである。 The invention of claim 1 has the following configuration.
(I)転写後の転写紙を感光体表面から分離させる分離
爪と、この分離爪によって分離された転写紙を搬送路に
向けてガイドするガイド部材とが、共通の取付軸に対し
軸方向に並んで取付けられること。(I) A separation claw for separating the transfer paper after the transfer from the surface of the photoconductor and a guide member for guiding the transfer paper separated by the separation claw toward the transport path are arranged in the axial direction with respect to the common mounting shaft. Be installed side by side.
(II)上記分離爪およびガイド部材は、それぞれ周方向
の一部に切欠を備えた断面C字形の嵌合部を有し、この
嵌合部により上記取付軸に対し径方向に着脱可能に取付
けられること。(II) Each of the separating claw and the guide member has a fitting portion having a C-shaped cross section with a notch in a part in the circumferential direction, and the fitting portion is detachably mounted on the mounting shaft in the radial direction. To be done.
(III)このうち、押付軸におけるガイド部材取付部分
は、平坦面を有する断面D字形に形成され、ガイド部材
の嵌合部がこのガイド部材取付部分に軸方向および周方
向に位置固定された状態で嵌合されること。(III) Of these, the guide member mounting portion of the pressing shaft is formed in a D-shaped cross section having a flat surface, and the fitting portion of the guide member is axially and circumferentially fixed to the guide member mounting portion. Be fitted with.
(IV)分離爪は、軸方向の一側がこのガイド部材に接し
て軸方向の一方に位置規制された状態で取付けられるこ
と。(IV) The separation claws should be attached with one side in the axial direction being in contact with this guide member and being regulated in one side in the axial direction.
また、請求項2の発明は、請求項1の構成において、
分離爪が、取付軸に対して、先端が感光体表面に接触す
る作用位置と先端が感光体表面から離間する非作用位置
との間で回動可能で、かつ、上記作用位置に向かって自
然回動しうる状態で取付けられ、一方、上記ガイド部材
を取付軸の軸心まわりに一定の二位置間で回動させるガ
イド部材回動機構が設けられ、かつ、ガイド部材に、上
記分離爪の作用位置への回動を、上記二位置のうちの一
方の位置では阻止し他方の位置では許容する爪操作部が
設けられてなるものである。In addition, the invention of claim 2 is the structure of claim 1,
The separation claw is rotatable with respect to the mounting shaft between an operating position where the tip contacts the surface of the photoconductor and a non-acting position where the tip is separated from the surface of the photoconductor, and the separation claw naturally moves toward the acting position. The guide member is mounted in a rotatable state, and on the other hand, a guide member rotating mechanism for rotating the guide member between two fixed positions around the axis of the mounting shaft is provided. A claw operating portion is provided to prevent rotation to the operating position at one of the two positions and allow it at the other position.
この構成によると、第1に、ガイド部材が、分離爪を
軸方向に固定するための一方の位置規制部材を兼用する
(片側の位置規制部材が不要となる)。第2に、ガイド
部材が取付軸に嵌合した状態で自動的に軸方向および周
方向に固定される(ガイド部材の軸方向および周方向位
置規制部材が不要となる)。According to this structure, first, the guide member also serves as one position regulating member for fixing the separation claw in the axial direction (the position regulating member on one side is unnecessary). Secondly, the guide member is automatically fixed in the axial direction and the circumferential direction in a state of being fitted to the mounting shaft (the axial and circumferential position regulating members of the guide member are not required).
このため、分離爪およびガイド部材の取付軸に対する
取付構造が簡単となり、その取付けのための部品点数が
従来よりも遥かに少なくてすむ。Therefore, the structure for mounting the separation claw and the guide member on the mounting shaft is simple, and the number of parts for mounting the far smaller than in the prior art.
また、分離爪およびガイド部材とも取付軸に対して径
方向に脱着できるため、分離爪の交換時に、取付軸を取
外す必要がないこと、取付軸に対する両者の脱着操作そ
のものが簡単であることにより、分離爪の交換作業が容
易となる。In addition, since the separation claw and the guide member can be attached and detached in the radial direction with respect to the mounting shaft, it is not necessary to remove the mounting shaft when replacing the separation claw, and the attachment / detachment operation of both of them with respect to the mounting shaft is easy. The separation claw replacement work becomes easy.
また、請求項2の構成によると、上記基本的な作用効
果に加えて、ガイド部材が、分離爪を作用位置と非作用
位置との間で切換える切換手段を兼用するため、部品点
数をさらに減少させることができる。Further, according to the structure of claim 2, in addition to the above-mentioned basic operation and effect, the guide member also serves as a switching means for switching the separation claw between the operating position and the non-operating position, so that the number of parts is further reduced. Can be made.
本発明の実施例を図によって説明する。 An embodiment of the present invention will be described with reference to the drawings.
第1図において、1は感光体ドラム、2はこの感光体
ドラム1に臨んで設けられた転写帯電装置、3は同分離
帯電装置である。In FIG. 1, reference numeral 1 is a photosensitive drum, 2 is a transfer charging device provided facing the photosensitive drum 1, and 3 is a separation charging device.
転写紙(転写可能なシート材全般をいう)は、第1図
矢印で示すように、転写ガイド板4でガイドされて転写
帯電装置2に送り込まれ、ここでドラム1上のトナー像
を転写された後、分離帯電装置3によりドラム表面から
分離されて、定着部に向かう搬送ベルト5に送られる。The transfer paper (generally referred to as a transferable sheet material) is guided by a transfer guide plate 4 and fed to the transfer charging device 2 as shown by an arrow in FIG. 1, and the toner image on the drum 1 is transferred thereto. After that, it is separated from the drum surface by the separation charging device 3 and is sent to the conveyor belt 5 toward the fixing portion.
この際、転写紙がドラム表面からスムースに分離され
ずに下流のクリーニング装置6側に巻上がる場合がある
ため、分離帯電装置3の下流側に分離装置7が設けられ
ている。At this time, the transfer sheet may not be smoothly separated from the surface of the drum and may wind up on the downstream cleaning device 6 side. Therefore, the separation device 7 is provided on the downstream side of the separation charging device 3.
この分離装置7は、転写紙をドラム表面から強制的に
分離させる先尖りの分離爪8と、この分離爪8で分離さ
れた転写紙を直ちに搬送ベルト5に向かわせるためのガ
イド部材9とを具備している。The separating device 7 includes a sharpened separation claw 8 for forcibly separating the transfer paper from the drum surface, and a guide member 9 for directing the transfer paper separated by the separation claw 8 to the conveyor belt 5 immediately. It has.
これら分離爪8とガイド部材9は、共通の取付軸10に
対し軸方向に並んで取付けられている。この取付構造を
第2,3図を併用して詳述する。The separation claw 8 and the guide member 9 are mounted side by side in the axial direction on a common mounting shaft 10. This mounting structure will be described in detail with reference to FIGS.
取付軸10には、下面側に平坦なカット面11aを備えた
断面D字形のガイド部材取付部11が形成されている。ま
た、このガイド部材取付部11の一端から分離爪8の幅寸
法分だけ離れた位置に位置規制部材としてのEリング12
が装着されている。On the mounting shaft 10, a guide member mounting portion 11 having a flat cut surface 11a on the lower surface side and having a D-shaped cross section is formed. Further, an E-ring 12 as a position regulating member is provided at a position separated from one end of the guide member mounting portion 11 by the width dimension of the separation claw 8.
Is installed.
一方、分離爪8は、先尖りの爪部13とレバー部14とを
有し、これらの間に、取付軸10に嵌め込まれる嵌合部15
が設けられている。On the other hand, the separation claw 8 has a pointed claw portion 13 and a lever portion 14, and a fitting portion 15 fitted into the mounting shaft 10 between them.
Is provided.
この嵌合部15は、後面側(感光体ドラム1側と反対
側)に切欠15aを備えた断面C字形に形成され、第2図
矢印で示すように、この嵌合部15が、切欠15aを介して
取付軸10のガイド部材取付部11に前方から嵌め込まれた
後、Eリング12側にスライドされることにより、分離爪
8が取付軸10に取付けられる。The fitting portion 15 is formed in a C-shaped cross section with a cutout 15a on the rear surface side (the side opposite to the photosensitive drum 1 side). As shown by the arrow in FIG. 2, the fitting portion 15 has a cutout 15a. The separation claw 8 is attached to the mounting shaft 10 by being fitted into the guide member mounting portion 11 of the mounting shaft 10 from the front side through and then being slid to the E ring 12 side.
ここで、嵌合部15は、取付軸10に対して自由に回転し
うるように、その内径寸法が取付軸10の径寸法よりも少
し大きく形成されている。Here, the fitting portion 15 is formed such that the inner diameter dimension thereof is slightly larger than the diameter dimension of the mounting shaft 10 so that the fitting portion 15 can freely rotate with respect to the mounting shaft 10.
また、この分離爪8の重心はレバー部14側に設定さ
れ、自然状態ではこの重心設定によって先上がり傾向と
なる。Further, the center of gravity of the separating claw 8 is set on the lever portion 14 side, and in the natural state, the center of gravity tends to rise due to the setting of the center of gravity.
ガイド部材9は、平らな基板16の下面に転写紙ガイド
部17、上面中間部に、円弧状の突片18が設けられて成
り、基板16と突片18とによって、ガイド部材取付部11に
対応する嵌合部19が形成されている。The guide member 9 is formed by providing a transfer paper guide portion 17 on the lower surface of a flat substrate 16 and an arcuate projecting piece 18 on the intermediate portion of the upper surface. A corresponding fitting portion 19 is formed.
この嵌合部19の断面サイズは、ガイド部材取付部11よ
りも少し小さく設定され、上記分離爪取付後に、この嵌
合部19をガイド部材取付部11に弾性的に嵌合させること
により、ガイド部材9をガイド部材取付部11に取付け
る。The cross-sectional size of the fitting portion 19 is set to be slightly smaller than that of the guide member mounting portion 11, and after the separation claw is mounted, the fitting portion 19 is elastically fitted to the guide member mounting portion 11 so that the guide The member 9 is attached to the guide member attaching portion 11.
なお、この嵌合操作を容易にするために、嵌合部19を
構成する突片18の先端部18aが外側に折曲げられてい
る。In addition, in order to facilitate this fitting operation, the tip end portion 18a of the protruding piece 18 forming the fitting portion 19 is bent outward.
ガイド部材9は、この取付状態で、ガイド部材取付部
11と嵌合部19の嵌合作用によって自動的に軸方向および
周方向に位置固定される。In this mounting state, the guide member 9 has a guide member mounting portion.
By the fitting action of 11 and the fitting portion 19, the position is automatically fixed in the axial direction and the circumferential direction.
また、このガイド部材9が取付けられることにより、
分離爪8がEリング12とガイド部材9との間に挟み込ま
れて軸方向に位置固定される。Also, by attaching this guide member 9,
The separation claw 8 is sandwiched between the E ring 12 and the guide member 9 and fixed in position in the axial direction.
さらに、ガイド部材9には、基板16の後端部側面に上
向きにL字形に突出する爪押し部20が一体に設けられ、
上記取付状態で、第3,4図に示すようにこの爪押し部20
が分離爪8のレバー部14に下側から当接する。Further, the guide member 9 is integrally provided with a claw pushing portion 20 projecting upward in an L shape on the side surface of the rear end portion of the substrate 16,
In the installed state, as shown in Figs. 3 and 4, the claw pushing part 20
Comes into contact with the lever portion 14 of the separation claw 8 from below.
一方、取付軸10の一端部または両端部には、第3図に
示すような軸回転機構が設けられている。On the other hand, a shaft rotating mechanism as shown in FIG. 3 is provided at one end or both ends of the mounting shaft 10.
この軸回転機構は、駆動源としてのソレノイド21と、
このソレノイド21の引き動作力を取付軸10に一定方向の
回転力として伝えるリンク伝動機構22と、復帰バネ23と
から成っている。This shaft rotation mechanism includes a solenoid 21 as a drive source,
It is composed of a link transmission mechanism 22 that transmits the pulling force of the solenoid 21 to the mounting shaft 10 as a rotational force in a fixed direction, and a return spring 23.
次にこの分離装置の作用を説明する。 Next, the operation of this separating device will be described.
ソレノイド21は、転写紙分離作用が必要なときにのみ
通電される。具体的には、たとえば感光体ドラム1に対
する転写紙の供給が開始されたときに、レジストローラ
の回転、または転写帯電部2に向けての転写紙の移動を
センサが検出してソレノイド21に通電される。The solenoid 21 is energized only when the transfer paper separating action is required. Specifically, for example, when the supply of the transfer paper to the photoconductor drum 1 is started, the sensor detects the rotation of the registration roller or the movement of the transfer paper toward the transfer charging unit 2, and the solenoid 21 is energized. To be done.
このソレノイド21が作動しない(非通電)状態では、
第4図に示すようにガイド部材9の爪押し部20が分離爪
8のレバー部14に下側から当接して分離爪8の先上がり
回動を阻止した状態となる。このため、分離爪8は爪部
13が感光体ドラム1の表面から離れた状態となる。In the state where this solenoid 21 does not operate (de-energize),
As shown in FIG. 4, the claw pushing portion 20 of the guide member 9 comes into contact with the lever portion 14 of the separation claw 8 from below to prevent the separation claw 8 from moving upward. Therefore, the separation claw 8 is
13 is separated from the surface of the photosensitive drum 1.
こうして、ドラム表面の保護のために、転写紙分離作
用が必要でないときには分離爪8をドラム表面から離し
てドラム表面を無用に圧迫しないようにしている。In this way, in order to protect the drum surface, the separation claw 8 is separated from the drum surface when unnecessary transfer paper separating action is not performed, so that the drum surface is not unnecessarily pressed.
つぎに、ソレノイド21が通電されて作動すると、取付
軸10が一定角度だけ回転して、第5図に示すようにガイ
ド部材9が先上がり方向に回動し、爪押し部20が分離爪
8のレバー部14から離れる。Next, when the solenoid 21 is energized to operate, the mounting shaft 10 rotates by a fixed angle, the guide member 9 rotates in the upward direction as shown in FIG. Away from the lever portion 14 of.
このため、分離爪8が回動規制を解かれて自動的に先
上がり方向に回動する。これにより、爪部13の先端が感
光体ドラム1の表面に接触した状態となり、この状態で
本来の転写紙分離・ガイド作用が行なわれる。Therefore, the separation claw 8 is released from the rotation restriction and automatically rotates in the forward rising direction. As a result, the tip of the claw portion 13 comes into contact with the surface of the photosensitive drum 1, and in this state, the original transfer paper separating / guide function is performed.
一方、分離爪8を先端摩耗等に応じて交換するとき
は、前記した取付時とは逆に、まずガイド部材9を取付
軸10のガイド部材取付部11から径方向に引抜いて取外し
た後、分離爪8を横スライドさせてガイド部材取付部11
から同様にして取外す。また、新たな分離爪8の取付け
は最初の取付時と同じ手順で行なえばよい。On the other hand, when replacing the separation claw 8 due to wear of the tip or the like, contrary to the above-described mounting, first, the guide member 9 is radially extracted from the guide member mounting portion 11 of the mounting shaft 10 and then removed. Slide the separation claw 8 sideways to guide member mounting portion 11
From the same way. Further, a new separation claw 8 may be attached by the same procedure as the first attachment.
このように、分離爪8の交換作業を、取付軸10に対す
るガイド部材9の径方向脱着操作と、分離爪8の径方向
脱着および軸方向スライド操作のみによって簡単に行な
うことができる。In this way, the replacement work of the separation pawl 8 can be easily performed only by the radial attachment / detachment operation of the guide member 9 with respect to the mounting shaft 10 and the radial attachment / detachment and axial slide operation of the separation pawl 8.
ところで、上記実施例では、分離爪8をドラム表面に
接触した状態と離間した状態とに切換える切換手段とし
て、取付軸10を回転させてガイド部材9の爪押し部20で
分離爪8を操作する手段、すなわち、ガイド部材9を切
換手段として兼用する構成をとったが、請求項1の発明
においては、ガイド部材9とは無関係に、分離爪8を直
接ソレノイド等で接触位置と離間位置との間で回動させ
るようにしてもよい。By the way, in the above-mentioned embodiment, the separation claw 8 is operated by the claw pushing portion 20 of the guide member 9 as the switching means for switching the separation claw 8 between the state in which the separation claw 8 is in contact with the drum surface and the state in which the separation claw 8 is separated from the drum surface. Although the means, that is, the guide member 9 is also used as the switching means, in the invention of claim 1, regardless of the guide member 9, the separation claw 8 is directly connected to the contact position and the separation position by a solenoid or the like. You may make it rotate between them.
また、このような分離爪回動手段を設けず、分離爪8
を常時ドラム表面に接触させる構成をとってもよい。Further, such a separating claw rotating means is not provided, and the separating claw 8 is
May be always in contact with the drum surface.
上記のように本発明によるときは、 (A)分離爪およびガイド部材に断面C字形の嵌合部を
設け、この嵌合部により両者を取付軸に対して径方向に
着脱可能とするとともに、 (B)取付軸におけるガイド部材取付部分を断面D字形
に形成して、ガイド部材をこの部分に軸方向および周方
向に位置固定した状態で取付け、 (C)しかも、このガイド部材によって分離爪が軸方向
の一方に位置規制されるように構成したから、 分離爪およびガイド部材の取付軸に対する取付構造
が簡単となり、その取付けのための部品点数を従来より
も遥かに少なくすることができる。このためコストが格
段に安くてすむ。As described above, according to the present invention, (A) the separation claw and the guide member are provided with a fitting portion having a C-shaped cross section, and the fitting portion allows both to be attached to and detached from the mounting shaft in the radial direction. (B) The guide member mounting portion of the mounting shaft is formed in a D-shaped cross section, and the guide member is mounted in this portion in a positionally fixed position in the axial direction and the circumferential direction. Since the position is regulated to one side in the axial direction, the structure for mounting the separation claw and the guide member on the mounting shaft becomes simple, and the number of parts for mounting can be far smaller than in the conventional case. For this reason, the cost is remarkably low.
分離爪の交換時に取付軸を取外す必要がないこと、
および取付軸に対する両者の脱着操作そのものが簡単で
あることにより、分離爪の交換作業が非常に容易とな
る。There is no need to remove the mounting shaft when replacing the separation claw,
Also, since the attachment / detachment operation of the both with respect to the mounting shaft is simple, the work of exchanging the separation claws becomes very easy.
また、請求項2の発明によるときは、分離爪を作用位
置と非作用位置との間で切換える方式をとる場合に、ガ
イド部材がこの切換手段を兼用するため、部品点数をさ
らに減少させることができる。Further, according to the second aspect of the invention, when the separation claw is switched between the operating position and the non-operating position, the guide member also serves as the switching means, so that the number of parts can be further reduced. it can.
第1図は本発明の実施例にかかる分離装置とその周辺機
器を示す正面図、第2図は同装置の分解斜視図、第3図
は同組立状態の斜視図、第4図および第5図は同装置の
作用を説明するための拡大正面図である。 1……感光体ドラム、7……分離装置、8……分離装置
の分離爪、9……同ガイド部材、10……同取付軸、11…
…取付軸のガイド部材取付部、11a……同取付部のカッ
ト面(平坦面)、15……分離爪の嵌合部、19……ガイド
部材の嵌合部。FIG. 1 is a front view showing a separation device and its peripheral equipment according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same device, FIG. 3 is a perspective view of the same assembled state, FIGS. 4 and 5. The figure is an enlarged front view for explaining the operation of the apparatus. 1 ... Photosensitive drum, 7 ... Separation device, 8 ... Separation claw of separation device, 9 ... Same guide member, 10 ... Same mounting shaft, 11 ...
… Mounting part of guide member for mounting shaft, 11a …… Cut surface (flat surface) of the mounting part, 15 …… Separating claw fitting part, 19 …… Guide member fitting part.
Claims (2)
成装置における転写紙の分離装置。 (I)転写後の転写紙を感光体表面から分離させる分離
爪と、この分離爪によって分離された転写紙を搬送路に
向けてガイドするガイド部材とが、共通の取付軸に対し
軸方向に並んで取付けられること。 (II)上記分離爪およびガイド部材は、それぞれ周方向
の一部に切欠を備えた断面C字形の嵌合部を有し、この
嵌合部により上記取付軸に対し径方向に着脱可能に取付
けられること。 (III)このうち、取付軸におけるガイド部材取付部分
は、平坦面を有する断面D字形に形成され、ガイド部材
の嵌合部がこのガイド部材取付部分に軸方向および周方
向に位置固定された状態で嵌合されること。 (IV)分離爪は、軸方向の一側がこのガイド部材に接し
て軸方向の一方に位置規制された状態で取付けられるこ
と。1. A transfer paper separating device in an image forming apparatus comprising the following structure. (I) A separation claw for separating the transfer paper after the transfer from the surface of the photoconductor and a guide member for guiding the transfer paper separated by the separation claw toward the transport path are arranged in the axial direction with respect to the common mounting shaft. Be installed side by side. (II) Each of the separating claw and the guide member has a fitting portion having a C-shaped cross section with a notch in a part in the circumferential direction, and the fitting portion is detachably mounted on the mounting shaft in the radial direction. To be done. (III) Of these, the guide member mounting portion of the mounting shaft is formed into a D-shaped cross section having a flat surface, and the fitting portion of the guide member is axially and circumferentially fixed to the guide member mounting portion. Be fitted with. (IV) The separation claws should be attached with one side in the axial direction being in contact with this guide member and being regulated in one side in the axial direction.
紙の分離装置において、分離爪が、取付軸に対して、先
端が感光体表面に接触する作用位置と先端が感光体表面
から離間する非作用位置との間で回動可能で、かつ、上
記作用位置に向かって自然回動しうる状態で取付けら
れ、一方、上記ガイド部材を取付軸の軸心まわりに一定
の二位置間で回動させるガイド部材回動機構が設けら
れ、かつ、ガイド部材に、上記分離爪の作用位置への回
動を、上記二位置のうちの一方の位置では阻止し他方の
位置では許容する爪操作部が設けられてなることを特徴
とする画像形成装置における転写紙の分離装置。2. A transfer paper separating device in an image forming apparatus according to claim 1, wherein the separating claw has an operating position where the tip contacts the surface of the photoconductor with respect to the mounting shaft, and the tip is separated from the surface of the photoconductor. The guide member is mounted so as to be rotatable between the non-acting position and the natural position toward the actuating position, while the guide member is rotated between two fixed positions around the axis of the mounting shaft. A pawl operating portion is provided with a guide member rotating mechanism for moving the guide member, and the guide member prevents the separation pawl from rotating to the operating position at one of the two positions and allows the other at the other position. A transfer paper separating device in an image forming apparatus, comprising:
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2175594A JPH0827568B2 (en) | 1990-07-02 | 1990-07-02 | Transfer paper separating device in image forming apparatus |
US07/719,874 US5161796A (en) | 1990-07-02 | 1991-06-24 | Transfer paper separating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2175594A JPH0827568B2 (en) | 1990-07-02 | 1990-07-02 | Transfer paper separating device in image forming apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0463383A JPH0463383A (en) | 1992-02-28 |
JPH0827568B2 true JPH0827568B2 (en) | 1996-03-21 |
Family
ID=15998816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2175594A Expired - Fee Related JPH0827568B2 (en) | 1990-07-02 | 1990-07-02 | Transfer paper separating device in image forming apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0827568B2 (en) |
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Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01142777A (en) * | 1987-11-30 | 1989-06-05 | Toshiba Corp | Separation device |
JPH01257988A (en) * | 1988-04-08 | 1989-10-16 | Fuji Xerox Co Ltd | Transfer material separating device |
JPH073416Y2 (en) * | 1988-11-11 | 1995-01-30 | 三田工業株式会社 | Paper separation device of image forming apparatus |
-
1990
- 1990-07-02 JP JP2175594A patent/JPH0827568B2/en not_active Expired - Fee Related
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