JPH04112260U - electrophotographic equipment - Google Patents
electrophotographic equipmentInfo
- Publication number
- JPH04112260U JPH04112260U JP2245991U JP2245991U JPH04112260U JP H04112260 U JPH04112260 U JP H04112260U JP 2245991 U JP2245991 U JP 2245991U JP 2245991 U JP2245991 U JP 2245991U JP H04112260 U JPH04112260 U JP H04112260U
- Authority
- JP
- Japan
- Prior art keywords
- unit
- recording material
- transport unit
- main body
- pulled out
- 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
- 108091008695 photoreceptors Proteins 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
(57)【要約】
【目的】 本考案は、本考案はファクシミリ、プリン
タ、複写機として適用される小型の電子写真装置に係
り、特にトナー像が転写される記録材のジャム処理の容
易化を図った小型の電子写真装置を提供することを目的
とする。
【構成】本考案は、記録材給紙端から画像定着手段に至
る記録材搬送路の少なくとも一部をユニット化し、感光
体ドラム軸線とほぼ直交する方向に引き出し可能に構成
した搬送ユニットを設けた点、前記搬送ユニットと一体
的に引き出し可能に係合された給紙カセットその他の記
録材収納部を設けた点、少なくとも前記搬送ユニットを
装置本体側に装着時に前記収納部とユニット間の係合を
解除可能に構成した点、を特徴とするものである。
(57) [Abstract] [Purpose] The present invention relates to a small electrophotographic device that can be used as a facsimile, printer, or copying machine, and in particular, to facilitate the removal of jams in recording materials onto which toner images are transferred. The purpose of the present invention is to provide a small-sized electrophotographic device. [Structure] In the present invention, at least a part of the recording material transport path from the recording material feeding end to the image fixing means is unitized, and a transport unit is provided that can be pulled out in a direction substantially perpendicular to the axis of the photoreceptor drum. A paper feed cassette or other recording material storage unit is provided that is integrally and withdrawnly engaged with the transport unit, and at least the engagement between the storage unit and the unit when the transport unit is attached to the main body of the apparatus is provided. This feature is characterized in that it is configured to be removable.
Description
【０００１】0001
本考案はファクシミリ、プリンタ、複写機として適用される小型の電子写真装 置に係り、特にトナー像が転写される記録材のジャム処理の容易化を図った電子 写真装置に関する。 This invention is a small electrophotographic device that can be used as a facsimile, printer, or copier. In particular, an electronic system designed to facilitate the removal of jams from recording materials onto which toner images are transferred. Concerning photographic equipment.
【０００２】0002
従来より小型の電子写真装置においてはジャム処理の容易化を図るために、記録 紙搬送路上に沿って上部本体と下部本体を分割開放可能に構成するのが一般的で ある。 しかしながら本体分割開放形構造を取ると、夫々の本体側に前記開放動作に耐 えるだけの精度と剛性度を必要とするのみならず、開放動作を軽減するためのス プリング等も必要とし、装置構成の煩雑化と重量負担の増大につながる。 Conventionally, in smaller electrophotographic devices, recording It is common to configure the upper and lower bodies to be able to be separated and opened along the paper conveyance path. be. However, if the main body is split into an open type structure, each main body has a structure that can withstand the opening operation. In addition to requiring sufficient precision and rigidity to Pulling and the like are also required, which leads to a complicated device configuration and an increased weight burden.
【０００３】 又前記装置においては現像装置を一般に上部本体側に配設するのが常であるが、 この様な構成を取ると上部本体開放動作の際に加わる衝撃力により現像装置内の 現像スリーブに担持されたトナーが脱離落下し、機内や記録紙搬送路の汚染が生 じ易い。 又未定着トナー像の定着手段としてヒートローラ対を用いる装置においては前 記搬送路の開放時にヒートローラ対（以下熱定着ローラ対という）間も露出して しまい、安全性に問題がある。 この為前記装置においては本体分割開放動作と連動して前記定着ローラを切電 可能に構成しているが、この様な構成を取っても前記切電直後は熱定着ローラが 充分加熱されており、尚、安全上問題があるのみならず、一旦切電するとジャム 処理後の電源再投入においてもプリント可能な定着温度までの復帰時間が大にな ってしまう。0003 In addition, in the above-mentioned apparatus, the developing device is generally disposed on the upper main body side. With this configuration, the impact force applied when the upper body is opened causes damage to the inside of the developing device. The toner carried on the developing sleeve may fall off and cause contamination inside the machine and the recording paper transport path. It's easy. In addition, in a device that uses a pair of heat rollers as a means of fixing an unfixed toner image, When the transport path is opened, the gap between the heat roller pair (hereinafter referred to as the heat fixing roller pair) is also exposed. This poses a safety problem. For this reason, in the device, the fixing roller is cut off in conjunction with the main body division opening operation. However, even with such a configuration, the heat fixing roller will not work immediately after the power is turned off. It is heated sufficiently, and not only does it pose a safety problem, but it can also jam if the power is turned off. Even when the power is turned on again after processing, it takes a long time to recover to the fixing temperature that allows printing. That's what happens.
【０００４】 かかる欠点を解消する為に、前記搬送路上に取り付けた給紙ローラ、レジスト ローラ、転写ローラ、搬送ガイド及び定着ローラ対を一体に組込んだ搬送ユニッ トを形成し、該搬送ユニットをドラム軸方向に沿って取り出し可能にした装置が 提案されている。（特開昭６４ー２０５６４号）0004 In order to eliminate this drawback, paper feed rollers and resistors installed on the conveyance path A transport unit that integrates rollers, transfer rollers, transport guides, and a pair of fixing rollers. There is a device in which the transport unit can be taken out along the drum axis direction. Proposed. (Unexamined Japanese Patent Publication No. 64-20564)
【０００５】 しかしながら前記のように記録紙搬送方向と直交する方向に沿ってユニットを 引出し可能に構成する事はジャム紙が感光体ドラム等にひっかかり易く、該ドラ ムを損傷する恐れがある。 この為特公平２ー３５３１４号に示す様に前記ユニットを定着ローラを含むユ ニットとその上流側のユニットに分割し、夫々のユニットを互いに離反する方向 に、記録材搬送路と平行に引出し可能に取り付けた事を特徴とする技術が開示さ れている。[0005] However, as mentioned above, the unit is moved along the direction perpendicular to the recording paper conveyance direction. A structure that can be pulled out prevents jammed paper from getting caught on the photoreceptor drum, etc. There is a risk of damaging the system. For this reason, as shown in Japanese Patent Publication No. 2-35314, the unit is replaced with a unit including a fixing roller. Divide into the knit and its upstream unit, and move each unit away from each other. , a technology is disclosed in which the recording material is attached so that it can be pulled out parallel to the recording material conveyance path. It is.
【０００６】[0006]
しかしながら前記装置においてはジャム位置に応じて装置本体の両側壁（若し くは前後壁）の夫々の側にユニットを引出す構成を取るために、ジャム処理の操 作空間が無用に大になると共に処理動作も煩雑化する。 However, in the above device, depending on the jam position, the side walls of the device body (or The jam handling operation can be configured to pull out the unit on each side of the front or rear walls). The work space becomes unnecessarily large and the processing operations become complicated.
【０００７】 又定着ローラ対をユニット化せずに装置本体側に残置させ、その上流側に位置 する搬送ユニットのみを搬送方向に沿って給紙側に引出し可能に構成した装置も 提案されている（特開昭６０ー６３５６３）。 しかしながら前記のようにジャム処理毎に搬送ユニットを装置外に取り出すこ とは操作者の重量負担が増大するのみならず、該搬送ユニットが感光体ドラムの 接線方向に長く延設する構造を取るために、その引き出し量も多くなり、その分 実質的な作業負担の増大につながる。 又前記装置においてはユニットが引出される給紙壁側に更に水平方向に延設す る給紙カセットが取り付けられている為に、該カセットとともに搬送ユニットを 給紙側に引き出そうとすると、（給紙カセットの長さ＋搬送ユニットの長さ）だ け装置本体外に突設することになるために、重量バランスがくずれ装置本体が倒 伏してしまう。 この為前記装置においてはジャム処理毎に給紙カセットを外す必要があり、ジ ャム操作が煩雑化する。[0007] Also, the fixing roller pair is left on the device main body side without being made into a unit, and is located upstream of it. There is also a device that is configured so that only the transport unit that is used can be pulled out toward the paper feed side along the transport direction. It has been proposed (Japanese Patent Application Laid-Open No. 60-63563). However, as mentioned above, it is not necessary to take out the transport unit from the device every time a jam is cleared. This not only increases the weight burden on the operator, but also causes the transport unit to Because it has a structure that extends long in the tangential direction, the amount of extension increases, and the This leads to a substantial increase in workload. In addition, in the above device, the unit is further extended horizontally on the side of the paper feed wall from which the unit is pulled out. Because the paper feed cassette is installed, the transport unit must be installed together with the cassette. When you try to pull it out to the paper feed side, it will be (length of the paper cassette + length of the transport unit). The weight balance may be disrupted and the device may fall over because it is installed protruding outside the device. I fall down. For this reason, in the above device, it is necessary to remove the paper cassette every time a jam is cleared, and the Jam operations become complicated.
【０００８】 本考案はかかる従来技術の欠点に鑑み、ジャム操作用の操作域が無用に長く事 なく、又ジャム処理操作が煩雑化することなく、容易に且つ効率的にジャム処理 を行うことの出来る電子写真装置を提供することを目的とする。 又本考案の他の目的とする所は、給紙カセットと走査ユニットを同一方向に引き 出し可能に構成する事により操作性の向上を図りつつ装置自体の省スペース化を 達成し得る電子写真装置を提供する事を目的とする。[0008] The present invention has been developed in view of the drawbacks of the prior art, and the operating range for jam operation is unnecessarily long. Easily and efficiently remove jams without complicating jam removal operations. The purpose of the present invention is to provide an electrophotographic device capable of performing the following. Another object of the present invention is to pull the paper cassette and scanning unit in the same direction. By configuring it so that it can be removed, it improves operability and saves space on the device itself. The purpose is to provide an electrophotographic device that can achieve this goal.
【０００９】[0009]
本考案はかかる技術的課題を達成する為に、 記録材給紙端から該記録材上に転写された未定着トナー像の画像定着を行う定 着手段に至る記録材搬送路の少なくとも一部をユニット化し、感光体ドラム軸線 とほぼ直交する方向に引き出し可能に構成した搬送ユニットを設けた点 前記搬送ユニットと一体的に引き出し可能に係合された給紙カセットその他の 記録材収納部を設けた点 少なくとも前記搬送ユニットを装置本体側に装着時に前記収納部とユニット間 の係合を解除可能に構成した点 を特徴とし この場合より好ましくは、前記搬送ユニットを段階的に引き出し可能に構成す ると共に、該ユニット体を装置本体外に脱離時に前記収納部とユニット間の係合 を解除可能に構成するのが良い。 In order to achieve this technical problem, this invention A setting for fixing the unfixed toner image transferred from the feeding end of the recording material onto the recording material. At least a part of the recording material conveyance path leading to the recording means is unitized, and the axis of the photoreceptor drum is The point is that a transport unit is provided that can be pulled out in a direction almost perpendicular to the A paper feed cassette and other paper feed cassettes integrally engaged with the transport unit so as to be pulled out. The provision of a recording material storage section At least between the storage section and the unit when the transport unit is installed on the device main body side. The point configured to be able to release the engagement of is characterized by In this case, it is more preferable that the transport unit is configured to be able to be pulled out in stages. At the same time, when the unit body is removed from the main body of the device, the engagement between the housing part and the unit is maintained. It is better to configure it so that it can be released.
【００１０】0010
かかる技術手段によれば、即ちより具体的には装置本体に搬送ユニットが装着 されている間は単独で給紙カセットの脱着が可能であり、該ユニットを取外さな くても簡単且つ軽重量負担でカセット交換や記録材の交換を行う事が出来る。 ジャムその他により搬送ユニットを途中位置まで引出す（離間動作）場合には給 紙カセットが一体的に係合した状態で離間させることが出来る為に、給紙端側や カセット出口側でジャムした場合でも容易にジャム処理が可能である。 即ち本考案は前記従来技術の様に給紙カセットと搬送ユニットを個別に取外す のではなく、給紙カセットが搬送ユニットとともに一体的に引き出し可能に構成 したために、ジャム操作が容易化する。 更に本考案の好ましい実施例によれば、前記ユニットを装置外に引出した場合 （脱離動作）に給紙カセットとユニットの係合が解除されるために夫々のメンテ ナンス等を容易に行う事が出来る。 又本考案の好ましい実施例によれば搬送ユニットを段階的に引き出し可能に構 成したために、ジャム位置に合せてユニットを引出せばよく、操作者の作業負担 が軽減する。 尚、本考案においては装置本体内に前記給紙カセット全てが収納可能に、前記 ユニット内に該収納部の収納空間を形成する事により装置全長を小に設定し得る と共に、該ユニットを装置外に離脱させる場合でもその操作域を最小の長さに設 定でき、操作性の向上につながる。 又前記の構成を取ることにより前記収納空間の上面側に記録材搬送路を形成す ることが出来、これにより搬送ユニット自体の省スペース化が達成し得る。 According to such technical means, more specifically, the transport unit is attached to the main body of the device. While this is the case, the paper cassette can be installed and removed independently without removing the Cassettes and recording materials can be exchanged easily and with a light weight burden even if the user does not have to use the cassette. If the transport unit is pulled out to an intermediate position (separation operation) due to a jam or other reason, the feed Since the paper cassette can be separated while being integrally engaged, it is possible to Even if a jam occurs on the cassette outlet side, the jam can be easily cleared. That is, in the present invention, the paper feed cassette and the transport unit are separately removed, unlike the conventional technology. The paper feed cassette is configured so that it can be pulled out together with the transport unit instead of This makes jamming operations easier. Furthermore, according to a preferred embodiment of the present invention, when the unit is pulled out of the device, Because the paper cassette and the unit are disengaged during (separation operation), each maintenance must be done. Nonces etc. can be easily performed. Further, according to a preferred embodiment of the present invention, the transport unit can be pulled out in stages. Because of this, all you have to do is pull out the unit according to the jam position, which reduces the work burden on the operator. is reduced. In addition, in the present invention, all of the paper feed cassettes can be stored in the main body of the apparatus. By creating a storage space for the storage section within the unit, the overall length of the device can be reduced. In addition, even when the unit is removed from the equipment, the operating range should be set to the minimum length. This will lead to improved operability. Furthermore, by adopting the above configuration, a recording material conveyance path can be formed on the upper surface side of the storage space. This makes it possible to save space in the transport unit itself.
【００１１】[0011]
以下、図面に基づいて本考案の実施例を例示的に詳しく説明する。但しこの実 施例に記載されている構成部品の寸法、材質、形状、その相対配置などは特に特 定的な記載がない限りは、この考案の範囲をそれのみに限定する趣旨ではなく単 なる説明例に過ぎない。 図１は本考案の実施例に係るページプリンタの内部構成を示す。 その構成を詳述するに、本装置は図上右方を操作面側とする略方形体状をなし 、その略中央部に感光体ドラム１を配すると共に、該感光体ドラム１の回転方向 に沿って上方位置に露光用光学系２、右方位置に現像装置３、下方に転写器４、 及び左方にクリーニング手段５イレーサ６と帯電器７１を夫々配置し、前記感光 体ドラム１を矢印方向に回転させながら公知の電子写真プロセスを行うように構 成している。 Hereinafter, embodiments of the present invention will be described in detail based on the drawings. However, this fruit The dimensions, materials, shapes, and relative positions of the components described in the examples are particularly specific. Unless there is a specific description, the scope of this invention is not intended to be limited to only that. This is just an illustrative example. FIG. 1 shows the internal configuration of a page printer according to an embodiment of the present invention. To explain its configuration in detail, this device has a roughly rectangular shape with the operation surface on the right side in the figure. , the photoreceptor drum 1 is disposed approximately in the center thereof, and the rotation direction of the photoreceptor drum 1 is Along the line, there is an exposure optical system 2 at an upper position, a developing device 3 at a right position, a transfer device 4 at a lower position, A cleaning means 5, an eraser 6, and a charger 71 are arranged on the left side, and the photosensitive The device is configured to perform a known electrophotographic process while rotating the body drum 1 in the direction of the arrow. has been completed.
【００１２】 又前記感光体ドラム１下方には前記転写器４及び給紙カセット７等が一体的に 組込まれた搬送ユニット１０が装置内ほぼ全域に亙って配設され、そして該ユニ ット１０は図上右方の操作面側に設けた開口部２１より給紙カセット７と共に一 体的に引出し可能に構成している。 即ち前記搬送ユニット１０は装置底域のほぼ全面に亙って形成された給紙カセ ット収納部１１と、該収納部１１上面の、前記ドラム１転写位置のほぼ接線方向 に沿って搬送路が形成されているユニット本体１２からなり、該本体１２は図上 右方のカセット７給紙端側より搬送路上に沿って順次給紙ローラ８、レジストロ ーラ対９、転写器４、及び定着ユニット３０入口端まで延設する搬送ガイド１３ を形成すると共に、該搬送ガイド１３の終端を段差状に下方に向け折曲させた後 、収納部上壁１１１と連設する。0012 Further, below the photosensitive drum 1, the transfer device 4, paper feed cassette 7, etc. are integrated. A built-in transport unit 10 is disposed over almost the entire area inside the device, and the unit The cutter 10 is inserted together with the paper feed cassette 7 through an opening 21 provided on the operation surface side on the right side of the figure. It is structured so that it can be physically pulled out. That is, the transport unit 10 has a paper feed cassette formed over almost the entire bottom area of the apparatus. The sheet storage portion 11 and the upper surface of the storage portion 11 in a substantially tangential direction of the transfer position of the drum 1. It consists of a unit main body 12 along which a conveyance path is formed, and the main body 12 is From the paper feed end of the right cassette 7, the paper feed roller 8 and registration roller are sequentially moved along the conveyance path. roller pair 9, transfer device 4, and conveyance guide 13 extending to the inlet end of the fixing unit 30. , and after bending the terminal end of the conveyance guide 13 downward in a stepped shape. , are connected to the upper wall 111 of the storage section.
【００１３】 又収納部上壁１１１は前記連設位置基側より排紙側へ水平に延設すると共に、 定着ユニット３０と対面する箇所で傾斜段差１１２を介して、該段差１１２の排 紙側を僅かに下方に下げた状態で水平方向に延設させている。 一方収納部１１下面側には、装置前壁側に設けた係合凹部２２と係合可能な係 合突起１１３を設け、搬送ユニット１０引出しの際に該ユニット１０が途中位置 で係止されるように構成する。[0013] Further, the upper wall 111 of the storage section extends horizontally from the base side of the continuous position to the paper discharge side, and Through the inclined step 112 at the location facing the fixing unit 30, the discharge of the step 112 is performed. It is extended horizontally with the paper side slightly lowered. On the other hand, on the lower surface side of the storage section 11, there is an engagement that can be engaged with an engagement recess 22 provided on the front wall side of the device. A mating protrusion 113 is provided so that when the transport unit 10 is pulled out, the unit 10 is placed in an intermediate position. It is configured so that it is locked in place.
【００１４】 又前記収納部１１内には給紙カセット７が着脱自在に装着されており、前記搬 送ユニット１０を装置本体側に装着した状態で、若しくは搬送ユニット１０を着 脱した後、図２に示すように搬送ユニット１０から給紙カセット７を取り出すこ とが出来、給紙若しくはカセット７交換の容易化を達成し得る。[0014] Further, a paper feed cassette 7 is removably installed in the storage section 11, and the paper feed cassette 7 With the transport unit 10 attached to the main body of the device, or with the transport unit 10 attached. After it is removed, the paper feed cassette 7 can be taken out from the transport unit 10 as shown in FIG. This makes it possible to easily feed paper or replace the cassette 7.
【００１５】 一方定着ユニット３０は後記に詳説するように定着ローラ対３１とその出口側 に配した排紙ローラ対３２からなり、そして前記定着ユニット３０の下流側に配 した切換えレバー２３の切換え操作により、画像定着後の記録材が反転ガイド２ ４を介して装置上面側への排紙と、装置左側壁に設けた排紙トレー２５上への排 紙を選択的に行えるように構成している。[0015] On the other hand, the fixing unit 30 includes a pair of fixing rollers 31 and its exit side, as will be explained in detail later. and a pair of paper ejecting rollers 32 disposed on the downstream side of the fixing unit 30. By switching the switching lever 23, the recording material after fixing the image is moved to the inversion guide 2. 4 to the top side of the device, and to the paper output tray 25 provided on the left side wall of the device. It is configured so that paper can be selectively used.
【００１６】 又装置本体は、反転ガイド２４を含めて左側壁から装置上面の排紙部を通って 現像装置３上面に至る装置上壁に至るハウジング部２６を排紙側に設けた不図示 の支点を中心として分割開放可能に構成し、これにより現像装置３におけるトナ ー交換と、排紙ガイド１３内のジャム処理の容易化を図っている。 この場合現像装置３や感光体ドラム１及び定着ユニット３０はいずれも装置本 体側に残置する構成を取るために、分割開放されるハウジング部２６の重量負担 がなく、而もトナー飛散や定着ローラのヒートローラ部３１ａが露出する事がな い。[0016] In addition, the main body of the device, including the reversing guide 24, passes from the left side wall through the paper ejection section on the top of the device. A housing portion 26 (not shown) extending from the upper surface of the developing device 3 to the upper wall of the device is provided on the paper discharge side. The toner in the developing device 3 can be divided and opened around the fulcrum of the - Replacement and clearing of jams inside the paper ejection guide 13 are facilitated. In this case, the developing device 3, photoreceptor drum 1, and fixing unit 30 are all The weight burden of the housing part 26, which is split open to take a configuration that remains on the body side, is reduced. There is no risk of toner scattering or exposure of the heat roller portion 31a of the fixing roller. stomach.
【００１７】 定着ユニット３０は、前記両端壁３３間に軸支されているヒートローラ３１ａ と該ローラ３１ａと同期回転する圧接ローラ３１ｂを有し、前記圧接ローラ３１ ｂはその軸端側の揺動機構３４を介してヒートローラ３１ａと離接する方向に揺 動可能に構成されている。 即ち前記搬送ユニット１０装着時においては、前記揺動機構３４のバネ力に抗 して圧接ローラ３１ｂをヒートローラ３１ａと圧接させる事が出来る。 一方この状態で、ユニット１０を引出す事により揺動機構３４の作動レバー３ ７自由端が傾斜段差部１１３を介して収納部上壁の排紙面１１４側に落ち込み、 これにより揺動機構３４のバネ力により圧接ローラ３１ｂが離間し、記録材の一 端が定着ローラ３１側に挟持された状態でジャムが発生した場合においても該ジ ャムした記録材が定着ローラ３１に対しフリーの状態になるために、容易にその 取り出しが可能である。 又前記ジャム処理後搬送ユニット１０を再装着することにより、前記操作と逆 に圧接ローラ３１ｂがヒートローラ３１ａ側に圧接され、而も該ヒートローラ３ １ａは通電状態を維持している為に速やかな定着動作の再開が可能である。[0017] The fixing unit 30 includes a heat roller 31a that is pivotally supported between the both end walls 33. and a pressure roller 31b that rotates synchronously with the roller 31a, and the pressure roller 31 b is swung in a direction toward and away from the heat roller 31a via a swiveling mechanism 34 on the shaft end side. It is configured to be movable. That is, when the transport unit 10 is attached, the spring force of the swing mechanism 34 is resisted. The pressure roller 31b can be brought into pressure contact with the heat roller 31a. On the other hand, in this state, by pulling out the unit 10, the operating lever 3 of the swing mechanism 34 is The free end of 7 falls down to the paper discharge surface 114 side of the upper wall of the storage section through the inclined step part 113, As a result, the pressure roller 31b is separated by the spring force of the swing mechanism 34, and the recording material is Even if a jam occurs with the edge being pinched by the fixing roller 31 side, the Since the jammed recording material is free from the fixing roller 31, it can be easily removed. It is possible to take it out. In addition, by reinstalling the conveyance unit 10 after the jam removal, the above operation can be reversed. The pressure roller 31b is pressed against the heat roller 31a side, and the heat roller 3 Since 1a maintains the energized state, it is possible to quickly restart the fixing operation.
【００１８】 又前記搬送ユニット１０の離脱動作を行うことにより、前記揺動機構３４が収 納部上壁の排紙面１１４から外れフリーの状態になり、更に回動させることが出 来るために、その回動位置の定着ユニット３０端壁に不図示のスイッチ手段を設 けることによりでヒートローラ３１ａの通電をＯＦＦする事が出来、これにより ユニット離脱後の装置本体内のメンテナンス時には該ローラの通電が阻止され安 全確保が容易である。 次に図２及び図３に基づいて搬送ユニットと給紙カセット間の係合構造につい て説明する。 先ず図２（ａ）に示すように、ドラム軸端側の装置本体内には、搬送ユニット １０に取り付けた係合制御部材４０が、移動可能な帯状空間５０が水平方向に給 紙側開口まで延設しており、該帯状空間中の底面５１は給紙側まで水平に延設し た後その開口端側を斜め下方に削り落としている。（図３（ｂ）参照）一方前記 帯状空間５０の上面側には搬送ユニット装着位置と対応する奥側に後記する係合 制御部材４０を下方に押し下げる台形突起５２が垂設されている。 さて前記係合制御部材４０は、前記搬送ユニット１０側壁面より突設する軸４ １により揺動自在に軸支され、上面側に歯面を有する係合レバー４２と、該係合 レバー４２に一端が、他端が装置本体底面側に係合され該底面の支持により係合 レバー４２を反時計方向に付勢するレバースプリング４３からなる。 又給紙カセット７側には図２（ｂ）に示すように該カセット７がユニット１０ に装着された時点において前記係合レバー４２の歯面４２ａと係合可能な歯部４ ４が、その側壁面に形成されている。 尚、図３（ａ）の破断部分で示すようにユニット収納部１１下面側に設けた係 合突起１１３と、装置前壁側に設けた係合凹部２２は装置本体の中央位置側に設 けられており、前記係合制御部材４０と取付け位置が重複する事がないように設 定している。 次にかかる実施例の動作を説明する。 先ず所定の電子写真動作を行う場合は、搬送ユニット１０側では給紙ローラ ８を利用して、ユニット収納部１１より記録材を搬送路始端側に反転給紙した後 、レジストローラ９の入口端で一旦待機させる。 一方感光体ドラム１側では、その回転により露光光学系２により書込まれた潜 像を現像装置３により可視像化した後、該トナー像始端と同期させて前記レジス トローラ９の入口端に待機させた記録材を転写位置に導き、未定着トナー像の転 写を行った後、該記録材を搬送ガイド１３を介して定着ローラ対３１に挿通し、 画像定着を行った後、排紙ローラ３２に導かれる。 そして頁揃えを行う場合は切換えレバー２３を下側に切換え、反転排紙ガイド ２４を介して装置上面側に排紙され、又切換えレバー２３を上側に切換える事に よりトナー像が上向きのまま排紙トレー２５上に排紙される。[0018] Furthermore, by performing the detachment operation of the transport unit 10, the swing mechanism 34 is retracted. It comes off the paper ejection surface 114 on the upper wall of the storage compartment and becomes free, making it possible to rotate it further. For this purpose, a switch means (not shown) is installed on the end wall of the fixing unit 30 at the rotational position. By turning the heat roller 31a on, the power to the heat roller 31a can be turned off. During maintenance inside the device body after the unit has been removed, the power supply to the roller is blocked to ensure safety. It is easy to secure everything. Next, we will discuss the engagement structure between the transport unit and the paper feed cassette based on Figures 2 and 3. I will explain. First, as shown in Fig. 2(a), there is a transport unit inside the main body of the apparatus on the end side of the drum shaft. The engagement control member 40 attached to the movable strip space 50 is horizontally supplied. It extends to the paper side opening, and the bottom surface 51 in the strip space extends horizontally to the paper feed side. After that, the open end side is shaved diagonally downward. (See Figure 3(b)) On the other hand, the above On the upper surface side of the strip space 50, there is an engagement hole to be described later on the back side corresponding to the transport unit mounting position. A trapezoidal protrusion 52 that pushes down the control member 40 is provided vertically. Now, the engagement control member 40 has a shaft 4 protruding from the side wall surface of the transport unit 10. 1, the engagement lever 42 is pivotably supported by One end is engaged with the lever 42 and the other end is engaged with the bottom side of the device main body, and is engaged by the support of the bottom side. It consists of a lever spring 43 that biases the lever 42 counterclockwise. Also, on the side of the paper feed cassette 7, as shown in FIG. 2(b), the cassette 7 is connected to a unit 10. The tooth portion 4 that can engage with the tooth surface 42a of the engagement lever 42 when attached to the 4 is formed on its side wall surface. In addition, as shown in the broken part in FIG. 3(a), The mating protrusion 113 and the engaging recess 22 provided on the front wall side of the device are provided on the central position side of the device main body. It is designed so that the mounting position does not overlap with the engagement control member 40. It is established. Next, the operation of this embodiment will be explained. First, when performing a predetermined electrophotographic operation, the paper feed roller is 8 to reversely feed the recording material from the unit storage section 11 to the starting end of the conveyance path. , and wait at the entrance end of the registration roller 9. On the other hand, on the photosensitive drum 1 side, the latent data written by the exposure optical system 2 is After the image is visualized by the developing device 3, the register is removed in synchronization with the starting edge of the toner image. The recording material that is waiting at the entrance end of the roller 9 is guided to the transfer position, and the unfixed toner image is transferred. After copying, the recording material is inserted into the fixing roller pair 31 via the conveyance guide 13, After the image is fixed, the sheet is guided to a discharge roller 32. Then, when performing page alignment, switch the switching lever 23 to the lower side and reverse the paper ejection guide. 24 to the top side of the device, and by switching the switching lever 23 to the upper side. The paper is discharged onto the paper discharge tray 25 with the toner image facing upward.
【００１９】 さて前記の状態で給紙カセット７と搬送ユニット１１が一体的に装置本体内に 装着されている場合は、図２（ａ）に示すように装置本体の台形突起５２がレバ ースプリング４３の弾性力に抗して強制的に係合レバー４２を下方（時計方向） に向け押し下げているために、図２（ｂ）に示すように係合レバー４２の歯面４ ２ａが給紙カセット７側の歯部４４との係合が解除されている状態にあり、従っ てこの状態では給紙カセット７のみをユニット開口部２１より引出す事が可能で あり、これにより記録材の交換等を簡易に行う事が出来る。 又前記記録動作中にジャムが生じた場合は前記搬送ユニット１０を僅かに引出 す事により、図３（ａ）に示すように係合レバー４２が装置本体の台形突起５２ の押圧位置から外れレバースプリング４３の弾性力により上方に揺動して給紙カ セット７側の歯部４３と係合する。これにより給紙カセット７がユニット１０側 に一体的に係合し該ユニット１０と共に引出しが可能になる。 そして先ず前記引き出し動作によりユニット下面側の係合突起１１３が、装置 前壁側に設けた係合凹部２２と係合する位置まで引出され、給紙側及び転写位置 付近に発生しているジャムを除去できる。 そして更に奥側にジャムが発生している場合は図３（ｂ）に示すように前記ユ ニット１０を多少上側に持上げながら更に引出す事により、該ユニット１０の脱 離直前位置で前記レバースプリング４３の本体底面側の支持が解除される為に逆 に係合レバー４２を所定角度時計方向に揺動させ、これにより係合レバー４２の 歯面４２ａが給紙カセット７側の歯部４３との係合が解除され、給紙カセット７ をユニット開口部２１より取り出すことが可能となり、これによりメンテナンス 等の容易化が可能となる。[0019] Now, in the above state, the paper feed cassette 7 and the transport unit 11 are integrated into the main body of the apparatus. When it is installed, the trapezoidal protrusion 52 on the main body of the device is attached to the lever as shown in FIG. 2(a). - Force the engagement lever 42 downward (clockwise) against the elastic force of the spring 43. As shown in FIG. 2(b), the tooth surface 4 of the engagement lever 42 2a is disengaged from the teeth 44 on the paper feed cassette 7 side. In the levered state, only the paper feed cassette 7 can be pulled out from the unit opening 21. This allows for easy replacement of recording materials. If a jam occurs during the recording operation, pull out the transport unit 10 slightly. By doing so, as shown in FIG. The lever spring 43 swings upward due to the elastic force of the lever spring 43, and the paper feed cover is removed from the pressed position. It engages with the teeth 43 on the set 7 side. This allows the paper cassette 7 to be placed on the unit 10 side. The unit 10 is integrally engaged with the unit 10 and can be pulled out together with the unit 10. First, the engaging protrusion 113 on the bottom side of the unit is pulled out by the pulling out operation. It is pulled out to the position where it engages with the engagement recess 22 provided on the front wall side, and it is moved to the paper feed side and the transfer position. You can remove jams that occur nearby. If the jam occurs further back, as shown in Figure 3(b), By lifting the knit 10 slightly upward and pulling it out further, the unit 10 can be removed. At the position immediately before release, the support of the lever spring 43 on the bottom side of the main body is released, so it is reversed. , the engagement lever 42 is swung clockwise by a predetermined angle. The tooth surface 42a is disengaged from the tooth portion 43 on the paper feed cassette 7 side, and the paper feed cassette 7 can be taken out from the unit opening 21, which makes maintenance easier. etc. can be facilitated.
【００２０】[0020]
以上記載した如く本考案によれば、、給紙カセット７と走査ユニットを同一方 向に引き出し可能に構成した場合においてもジャム操作用の操作域が無用に長く なる事なく、又ジャム処理操作が煩雑化することなく、容易に且つ効率的にジャ ム処理を行うことの出来るとともに、操作性の向上と装置自体の省スペース化を 達成し得る。 等の種々の著効を有す。 As described above, according to the present invention, the paper feed cassette 7 and the scanning unit are placed on the same side. Even when configured so that it can be pulled out in the opposite direction, the operation area for jamming is unnecessarily long. The jam removal process can be easily and efficiently done without causing problems or complicating jam handling operations. In addition to being able to perform bulk processing, it also improves operability and saves space on the device itself. It can be achieved. It has various effects such as
【図１】本考案の実施例に係る電子写真装置の全体構成
図。FIG. 1 is an overall configuration diagram of an electrophotographic apparatus according to an embodiment of the present invention.
【図２】前記装置内に組込まれた搬送ユニットと記録紙
の関係を示す作用図で（ａ）はユニットを装着している
状態、（ｂ）はユニットを引出し開始直前の状態を示
す。FIG. 2 is an operational view showing the relationship between the conveying unit incorporated in the apparatus and the recording paper, in which (a) shows a state in which the unit is installed, and (b) shows a state immediately before the start of pulling out the unit.
【図３】前記装置内に組込まれた搬送ユニットと記録紙
の関係を示す作用図で図２の続きの動作順序を示し
（ａ）は離間動作中の状態、（ｂ）はユニットが離脱直
前の状態を示す。FIG. 3 is an operational diagram showing the relationship between the conveyance unit incorporated in the device and the recording paper, and shows the operation sequence continued from FIG. Indicates the status of
１ 感光体ドラム ４ 転写器 ７ 給紙カセット １０ 搬送ユニット ３０ 定着ユニット 1 Photoreceptor drum 4 Transfer device 7 Paper cassette 10 Transport unit 30 Fusing unit
Claims (4)
た未定着トナー像の画像定着を行う定着手段に至る記録
材搬送路の少なくとも一部をユニット化し、感光体ドラ
ム軸線とほぼ直交する方向に引き出し可能に構成した搬
送ユニットと、該搬送ユニットと一体的に引き出し可能
に係合された記録材収納部とを有し、少なくとも該搬送
ユニットを装置本体側に装着時に前記収納部とユニット
間の係合を解除可能に構成した事を特徴とする電子写真
装置1. At least a part of the recording material conveyance path from the recording material feeding end to the fixing means for fixing the unfixed toner image transferred onto the recording material is formed into a unit, and the recording material conveying path is formed into a unit, and is arranged approximately along the axis of the photoreceptor drum. It has a transport unit that can be pulled out in an orthogonal direction, and a recording material storage part that is integrally engaged with the transport unit so that it can be pulled out, and at least when the transport unit is attached to the main body of the apparatus, the storage part An electrophotographic device characterized in that the engagement between the unit and the unit can be released.
能に構成すると共に該ユニット体を装置本体外に脱離時
に前記収納部とユニット間の係合を解除可能に構成した
請求項１記載の電子写真装置2. The electronic device according to claim 1, wherein the transport unit is configured so that it can be pulled out in stages, and the engagement between the storage section and the unit can be released when the unit body is removed from the apparatus main body. photographic equipment
可能に、前記ユニット内に該収納部の収納空間を形成し
た請求項１記載の電子写真装置3. The electrophotographic apparatus according to claim 1, wherein a storage space for the storage section is formed within the unit so that all of the recording material storage sections can be stored within the apparatus main body.
を形成した請求項１記載の電子写真装置4. The electrophotographic apparatus according to claim 1, wherein a recording material conveyance path is formed on the upper surface side of the storage space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2245991U JPH04112260U (en) | 1991-03-15 | 1991-03-15 | electrophotographic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2245991U JPH04112260U (en) | 1991-03-15 | 1991-03-15 | electrophotographic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04112260U true JPH04112260U (en) | 1992-09-30 |
Family
ID=31907955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2245991U Pending JPH04112260U (en) | 1991-03-15 | 1991-03-15 | electrophotographic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04112260U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6420564A (en) * | 1987-07-15 | 1989-01-24 | Sharp Kk | Separation mechanism for image forming device |
| JPH02152836A (en) * | 1988-12-01 | 1990-06-12 | Ricoh Co Ltd | Image forming device |
-
1991
- 1991-03-15 JP JP2245991U patent/JPH04112260U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6420564A (en) * | 1987-07-15 | 1989-01-24 | Sharp Kk | Separation mechanism for image forming device |
| JPH02152836A (en) * | 1988-12-01 | 1990-06-12 | Ricoh Co Ltd | Image forming device |
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