JP2001002330A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JP2001002330A JP2001002330A JP17401099A JP17401099A JP2001002330A JP 2001002330 A JP2001002330 A JP 2001002330A JP 17401099 A JP17401099 A JP 17401099A JP 17401099 A JP17401099 A JP 17401099A JP 2001002330 A JP2001002330 A JP 2001002330A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- side cover
- image forming
- reversing
- conveying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Counters In Electrophotography And Two-Sided Copying (AREA)
- Conveyance By Endless Belt Conveyors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複写機、プリン
タ、ファクシミリ等の画像形成装置に関する。The present invention relates to an image forming apparatus such as a copying machine, a printer, a facsimile, and the like.
【０００２】[0002]
【従来の技術】特開平９−２９７４４０号公報には、画
像形成部の下方に給紙部を、上方に定着部を設け、シー
トを略垂直に搬送しながら画像形成を行う方式の画像形
成装置において、装置本体の側面カバーにシートを略垂
直に搬送するシート搬送手段（ベルト方式の転写手段）
を一体に設け、該側面カバーを開くことによりシート搬
送路の大部分を一挙に開放してジャム処理を容易にする
技術が開示されている。また、同公報には、シートの両
面に画像を形成する場合の両面ユニットを上記側面カバ
ーの外側に増設する技術が開示されている。両面ユニッ
ト内には片面の画像形成が終わったシートを反転させる
ための反転経路（シート反転搬送部）と、反転したシー
トをシート搬送手段の上流側に搬送するための再給紙手
段が設けられている。2. Description of the Related Art Japanese Unexamined Patent Publication No. 9-297440 discloses an image forming apparatus in which a paper feeding section is provided below an image forming section and a fixing section is provided above the image forming section, and an image is formed while conveying a sheet substantially vertically. , A sheet conveying means (belt type transfer means) for conveying a sheet substantially vertically to a side cover of the apparatus main body
A technology is disclosed in which a large portion of the sheet conveying path is opened at a stroke by opening the side cover to facilitate the jam clearance. Further, the same publication discloses a technique in which double-sided units for forming images on both sides of a sheet are added outside the side cover. A reversing path (sheet reversing and conveying unit) for reversing the sheet on which one side of the image has been formed and a sheet re-feeding unit for conveying the inverted sheet to the upstream side of the sheet conveying unit are provided in the duplex unit. ing.
【０００３】側面カバーと両面ユニットは装置本体に対
してそれぞれ下端部を軸支されて上下方向に回動自在に
設けられている。両面ユニット内でジャムが生じた場合
には、両面ユニットを装置本体外方に回動して開き、か
かる状態で両面ユニットの内側（開放面側）からジャム
処理用のガイド板を開放してシートを取り出すようにな
っている。シート搬送手段の搬送路でジャムが発生した
場合には、まず両面ユニットを開き、その後側面カバー
を開いてシートを取り出すようになっている。[0003] The side cover and the double-sided unit are rotatably provided in the vertical direction with their lower ends pivotally supported by the apparatus body. When a jam occurs in the duplex unit, the duplex unit is pivoted out of the apparatus body and opened, and in this state, the jam processing guide plate is opened from the inside (opening side) of the duplex unit and the sheet is removed. To take out. When a jam occurs in the conveying path of the sheet conveying means, the duplex unit is first opened, and then the side cover is opened to take out the sheet.
【０００４】[0004]
【発明が解決しようとする課題】上述のように両面ユニ
ットを側面カバーの外側に増設する方式では、装置本体
側面の開閉機構が２重となって構成が複雑になるという
問題があった。また、例えば片面のみに画像を形成する
作業においてジャムが発生した場合、側面カバーの開放
動作に先立って必ずその作業においては使用されない両
面ユニットの開放動作が必要となり、ジャム処理操作性
に劣るという問題があった。As described above, in the system in which the double-sided unit is added to the outside of the side cover, there is a problem that the opening / closing mechanism on the side of the apparatus body is doubled and the configuration is complicated. Further, for example, when a jam occurs in an operation of forming an image on only one side, the opening operation of a double-sided unit that is not used in the operation is always required prior to the opening operation of the side cover, and the jam operability is poor. was there.
【０００５】そこで、本発明は、構成が簡単でジャム処
理操作性に優れる画像形成装置の提供を、その目的とす
る。Accordingly, an object of the present invention is to provide an image forming apparatus having a simple configuration and excellent operability in jam processing.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、請求項１記載の発明では、シート搬送手段によりシ
ートを略垂直に搬送しながら画像形成を行なう画像形成
装置であって、装置本体に対して開閉自在に設けられ上
記シート搬送手段を保持する側面カバーと、片面の画像
形成後のシートを反転させるための反転手段と、この反
転手段により反転されたシートを上記シート搬送手段の
上流へ搬送する再給紙手段を有し、上記側面カバーを開
いたときに上記シート搬送手段による搬送路が開放され
る画像形成装置において、上記側面カバーが少なくも上
記再給紙手段を一体に有している、という構成を採って
いる。According to the first aspect of the present invention, there is provided an image forming apparatus for forming an image while conveying a sheet substantially vertically by a sheet conveying means. A side cover that is openably and closable with respect to the sheet conveying unit, a reversing unit for reversing the sheet on which one side of the image has been formed, and a sheet that is reversed by the reversing unit upstream of the sheet conveying unit. An image forming apparatus having a sheet re-feeding unit for conveying the sheet to the sheet feeding unit and opening a conveying path of the sheet conveying unit when the side cover is opened. Is adopted.
【０００７】請求項２記載の発明では、請求項１記載の
構成において、上記シート搬送手段が、シートを吸着し
ながら搬送する転写ベルトを有している、という構成を
採っている。According to a second aspect of the present invention, in the configuration of the first aspect, the sheet conveying means has a transfer belt for conveying the sheet while sucking the sheet.
【０００８】請求項３記載の発明では、請求項１又は２
記載の構成において、上記シート搬送手段が上記側面カ
バーに対して着脱自在に設けられ、上記再給紙手段内の
シートが上記シート搬送手段の上記側面カバーに対する
装着面側より取り出し可能である、という構成を採って
いる。According to the third aspect of the present invention, the first or second aspect is provided.
In the configuration described above, the sheet conveying unit is detachably provided to the side cover, and a sheet in the sheet re-feeding unit can be taken out from a mounting surface side of the sheet conveying unit with respect to the side cover. It has a configuration.
【０００９】請求項４記載の発明では、請求項１又は２
記載の構成において、上記シート搬送手段が上記側面カ
バーに対して回動自在に設けられ上記側面カバーを開い
たときに装置本体側へ退避可能であり、上記再給紙手段
内のシートが上記シート搬送手段の上記側面カバーに対
する装着面側より取り出し可能である、という構成を採
っている。According to the fourth aspect of the present invention, the first or second aspect is provided.
In the configuration described above, the sheet conveying means is provided rotatably with respect to the side cover, and can be retracted to the apparatus main body when the side cover is opened, and the sheet in the sheet re-feeding means is the sheet. The configuration is such that the transport means can be taken out from the side of the mounting surface with respect to the side cover.
【００１０】請求項５記載の発明では、請求項３又は４
記載の構成において、上記反転手段のシート反転搬送部
が、上記再給紙手段を挟んだ上記シート搬送手段の反対
側の位置をもって上記側面カバーに一体に設けられてい
る、という構成を採っている。According to the fifth aspect of the present invention, the third or fourth aspect is provided.
In the configuration described above, a configuration is adopted in which the sheet reversing and conveying unit of the reversing unit is provided integrally with the side cover at a position opposite to the sheet conveying unit with the refeeding unit interposed therebetween. .
【００１１】請求項６記載の発明では、請求項３，４又
は５記載の構成において、上記シート搬送手段の一部
が、上記再給紙手段の搬送路のシート案内面を兼ねてい
る、という構成を採っている。According to a sixth aspect of the present invention, in the configuration of the third, fourth or fifth aspect, a part of the sheet conveying means also serves as a sheet guide surface of a conveying path of the re-feeding means. It has a configuration.
【００１２】請求項７記載の発明では、請求項１又２記
載の構成において、上記反転手段のシート反転搬送部が
上記シート搬送手段と上記再給紙手段との間の位置をも
って上記側面カバーに一体に設けられ、上記シート搬送
手段が上記側面カバーに対して着脱自在に設けられ、上
記シート反転搬送部内のシートが上記シート搬送手段の
上記側面カバーに対する装着面側より取り出し可能であ
る、という構成を採っている。According to a seventh aspect of the present invention, in the configuration of the first or second aspect, the sheet reversing / conveying section of the reversing means is attached to the side cover with a position between the sheet conveying means and the refeeding means. The sheet conveying means is provided integrally with the side cover so as to be detachable, and a sheet in the sheet reversing conveyance section can be taken out from a mounting surface side of the sheet conveying means with respect to the side cover. Has been adopted.
【００１３】請求項８記載の発明では、請求項１又２記
載の構成において、上記反転手段のシート反転搬送部が
上記シート搬送手段と上記再給紙手段との間の位置をも
って上記側面カバーに一体に設けられ、上記シート搬送
手段が上記側面カバーに対して回動自在に設けられ上記
側面カバーを開いたときに装置本体側へ退避可能であ
り、上記シート反転搬送部内のシートが上記シート搬送
手段の上記側面カバーに対する装着面側より取り出し可
能である、という構成を採っている。According to the invention described in claim 8, in the constitution described in claim 1 or 2, the sheet reversing / conveying section of the reversing means holds the position between the sheet conveying means and the re-feeding means on the side cover. The sheet conveying means is provided so as to be rotatable with respect to the side cover, and can be retracted toward the apparatus main body when the side cover is opened. The means can be taken out from the mounting surface side of the means with respect to the side cover.
【００１４】請求項９記載の発明では、請求項７又は８
記載の構成において、上記シート搬送手段の一部が、上
記シート反転搬送部のシート案内面を兼ねている、とい
う構成を採っている。According to the ninth aspect of the present invention, the seventh or eighth aspect is provided.
In the configuration described above, a configuration is adopted in which a part of the sheet conveying unit also serves as a sheet guide surface of the sheet reversing and conveying unit.
【００１５】[0015]
【実施例】以下、本発明の実施例を図に基づいて説明す
る。なお、各実施例において同一部分は同一符号で示
し、特に必要がない限り重複した説明は省略する。図１
に示すように、本実施例における画像形成装置としての
フルカラー画像形成装置２は、装置本体４の中央部に設
けられた画像形成部６と、画像形成部６の下方に設けら
れた給紙部８と、画像形成部６の上方に設けられた定着
部１０と、シートを略垂直に搬送するシート搬送手段１
２と、このシート搬送手段１２を保持し、装置本体４に
対して開閉自在な側面カバー１４等を有している。な
お、側面カバー１４は、「搬送ブラケット」と称するこ
ともできる。画像形成部６には、現像色の異なる４つの
作像ユニットＡ，Ｂ，Ｃ，Ｄが上下方向に重ね合わせ状
態に配置されている。各作像ユニットＡ，Ｂ，Ｃ，Ｄ
は、像担持体としての感光体と、感光体を一様に帯電す
る帯電手段と、静電潜像を形成する露光手段と、静電潜
像を可視像化する現像手段と、転写後の残留トナーを除
去するクリーニング手段等を有する周知の構成である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In each of the embodiments, the same parts are denoted by the same reference numerals, and repeated description will be omitted unless otherwise required. FIG.
As shown in FIG. 1, a full-color image forming apparatus 2 as an image forming apparatus according to the present embodiment includes an image forming section 6 provided in a central portion of an apparatus main body 4 and a sheet feeding section provided below the image forming section 6. 8, a fixing unit 10 provided above the image forming unit 6, and a sheet conveying unit 1 for conveying a sheet substantially vertically.
2 and a side cover 14 that holds the sheet conveying means 12 and can be opened and closed with respect to the apparatus main body 4. Note that the side cover 14 can also be referred to as a “transport bracket”. In the image forming section 6, four image forming units A, B, C, and D having different developing colors are arranged in a vertically superposed state. Each imaging unit A, B, C, D
A photoconductor as an image carrier, a charging unit for uniformly charging the photoconductor, an exposure unit for forming an electrostatic latent image, a developing unit for visualizing the electrostatic latent image, and Is a well-known configuration having a cleaning means for removing residual toner.
【００１６】給紙部８に積載収容されたシートは給紙ロ
ーラ１６等により最上のものから順に一枚ずつ分離され
てレジストローラ対１８に送られる。シートはレジスト
ローラ対１８で斜めずれ等を修正された後、その先端部
の所定位置が最下方の作像ユニットＡの感光体上の画像
先端と一致するタイミングで送られ、シート搬送手段１
２で搬送されながら順次作像ユニットＡ，Ｂ，Ｃ，Ｄに
よる画像を転写される。フルカラー画像を転写されたシ
ートは定着部１０へ送られ、ここで熱と圧力によりトナ
ーが溶融してフルカラー画像がシート上に定着される。
定着部１０の下流には２つの搬送路２０，２２が設けら
れており、搬送路切換手段としての分岐爪２４により選
択的に案内されるようになっている。The sheets stacked and accommodated in the sheet supply unit 8 are separated one by one by a sheet supply roller 16 and the like from the uppermost one and sent to a pair of registration rollers 18. After the sheet is corrected for oblique displacement or the like by the registration roller pair 18, the sheet is fed at a timing when a predetermined position of the leading end coincides with the leading end of the image on the photosensitive member of the lowermost image forming unit A, and the sheet conveying means 1
The images are sequentially transferred by the image forming units A, B, C, and D while being conveyed in Step 2. The sheet on which the full-color image has been transferred is sent to the fixing unit 10, where the toner is melted by heat and pressure to fix the full-color image on the sheet.
Two transport paths 20, 22 are provided downstream of the fixing unit 10, and are selectively guided by a branch claw 24 as transport path switching means.
【００１７】分岐爪２４は図示しないソレノイドにより
駆動され、シートの片面のみに画像を形成する場合、又
はシート両面への画像形成後は、二点鎖線で示す位置に
位置付けられる。この場合、シートは搬送路２０へ案内
され、排紙ローラ対２６により装置本体４の上面に形成
された排紙トレイ２８上に排出される。シート両面に画
像を形成する場合において片面の画像形成が終わった後
はシートは定着部１０を出た後実線で示す位置に位置付
けられた分岐爪２４により搬送路２２へ案内され、反転
される。The branch claw 24 is driven by a solenoid (not shown), and is positioned at a position indicated by a two-dot chain line when an image is formed on only one side of the sheet or after an image is formed on both sides of the sheet. In this case, the sheet is guided to the transport path 20 and is discharged by the discharge roller pair 26 onto a discharge tray 28 formed on the upper surface of the apparatus main body 4. In the case where an image is formed on both sides of the sheet, after the image formation on one side is completed, the sheet exits the fixing unit 10 and is guided to the transport path 22 by the branching claw 24 positioned at the position shown by the solid line, and is reversed.
【００１８】側面カバー１４内には、シート搬送手段１
２よりも装置本体４外方側に上下方向に延びるシート反
転搬送部２５が設けられている。シート反転搬送部２５
は搬送路２２に接続されており、分岐爪２４、搬送路２
２、シート反転搬送部２５等により反転手段が構成され
ている。側面カバー１４内におけるシート搬送手段１２
とシート反転搬送部２５との間には、反転手段により反
転されたシートをシート搬送手段１２の上流へ搬送する
再給紙手段２７が設けられている。反転されたシートは
再給紙手段２７によりシート搬送手段１２の上流側であ
るレジストローラ対１８へ送られる。In the side cover 14, the sheet conveying means 1 is provided.
A sheet reversing / conveying unit 25 extending vertically is provided on the outer side of the apparatus main body 4 than the unit 2. Sheet reversing conveyance section 25
Are connected to the transport path 22, and the branch claws 24 and the transport path 2
2. The reversing means is constituted by the sheet reversing and conveying unit 25 and the like. Sheet conveying means 12 in side cover 14
A sheet re-feeding unit 27 that conveys the sheet inverted by the reversing unit to the upstream of the sheet conveying unit 12 is provided between the sheet reversing and conveying unit 25. The reversed sheet is sent by the re-feeding means 27 to the pair of registration rollers 18 on the upstream side of the sheet conveying means 12.
【００１９】両面プリントについて具体的に説明する
と、第１面（片面）の画像形成を終えたシートは、分岐
爪２４により側面カバー１４内のシート反転搬送部２５
へ導かれて反転される。反転されたシートは、再給紙手
段２７によりもう一度シート搬送手段１２の入口へ戻さ
れ、第２面の画像形成を行なうべく再給紙される。な
お、シート反転搬送部２５、再給紙手段２７は単一の実
線で省略表示しているが、実際には一対のガイド板や搬
送コロ対等により構成されている。連続して両面プリン
トを行なうときには、１枚目の第１面の画像形成に続
き、２枚目の第１面画像形成を行い、シート反転搬送部
２５へ２枚のシートを順送りし、１枚目第２面、３枚目
第１面、２枚目第２面、４枚目第１面、３枚目第２面・
・・・と交互に給紙、再給紙を行なう。これにより、無
駄な空転時間を発生することなく両面プリントを行なう
ことができる。More specifically, the double-sided printing will be described. The sheet on which the image formation on the first side (one side) has been completed is fed by the branching claw 24 to the sheet reversing and conveying section 25 in the side cover 14.
It is guided and inverted. The reversed sheet is returned to the entrance of the sheet conveying means 12 by the sheet re-feeding means 27 again, and is re-fed to form an image on the second surface. Although the sheet reversing conveyance section 25 and the sheet re-feeding means 27 are not shown by a single solid line, they are actually constituted by a pair of guide plates and a pair of conveyance rollers. When performing double-sided printing continuously, image formation on the first side of the first sheet is performed after image formation on the first side of the first sheet. 2nd surface, 3rd surface 1st surface, 2nd surface 2nd surface, 4th surface 1st surface, 3rd surface 2nd surface
.. And feed again. Thus, double-sided printing can be performed without generating useless idle time.
【００２０】シート搬送手段１２は側面カバー１４に着
脱自在に保持されている。図２に示すように、上下方向
に延びるフレーム３０と、フレーム３０の上下端部に設
けられた駆動ローラ３２、従動ローラ３４と、駆動ロー
ラ３２と従動ローラ３４間に掛け渡された転写ベルト３
６と、４色の作像ユニットＡ，Ｂ，Ｃ，Ｄに対向する位
置でトナーをシート上に転写するための転写ブラシａ，
ｂ，ｃ，ｄと、転写後の転写ベルト３６上の清掃を行な
うベルトクリーニングブレード３８と、残留電荷を除去
するための除電針４０と、バックアップローラ４２等を
有している。これらの部材はフレーム３０に一体に設け
られている。フレーム３０の上端部にはハンドル４４が
設けられており、このハンドル４４の操作によりシート
搬送手段１２を側面カバー１４に着脱できるようになっ
ている。なお、図２以外においてはシート搬送手段１２
は簡略化して表示している。The sheet conveying means 12 is detachably held on the side cover 14. As shown in FIG. 2, a frame 30 extending in the vertical direction, a driving roller 32 and a driven roller 34 provided at upper and lower ends of the frame 30, and the transfer belt 3 stretched between the driving roller 32 and the driven roller 34.
6 and transfer brushes a for transferring toner onto a sheet at positions facing the image forming units A, B, C, and D of four colors.
b, c, d, a belt cleaning blade 38 for cleaning the transfer belt 36 after transfer, a static elimination needle 40 for removing residual charges, a backup roller 42, and the like. These members are provided integrally with the frame 30. A handle 44 is provided at the upper end of the frame 30, and the sheet conveying means 12 can be attached to and detached from the side cover 14 by operating the handle 44. In addition, in FIG.
Is simplified.
【００２１】シートはシート搬送手段１２の転写ベルト
３６によって静電吸着された状態で搬送されるので、略
垂直方向の搬送であっても水平搬送と同等に搬送するこ
とができる。このように、静電吸着等の吸着による搬送
であれば角度があっても搬送性能は損なわれない。本実
施例では、シート搬送路の最短距離を図るべく略垂直搬
送構成としたが、例えば４５°などの傾斜を有する搬送
構成としてもよい。転写ベルト３６や転写ブラシａ，
ｂ，ｃ，ｄは長期間の使用によって表面の削れ、汚れ付
着などにより転写特性が低下する場合がある。このよう
な場合、転写ベルト３６のみ、あるいは転写ブラシａ，
ｂ，ｃ，ｄのみの交換によってもメンテナンスすること
は可能であるが、交換作業が非常に面倒となる。この点
に鑑み、本実施例ではオペレータ（ユーザー）が簡単に
メンテナンスが行えるように、一括交換方式としてい
る。従って、例えば転写ベルト３６の磨耗により転写特
性が低下した場合、オペレータは側面カバー１４からシ
ート搬送手段１２を一つのユニットとして取り外し、新
しいシート搬送手段１２と交換する。Since the sheet is conveyed in a state where it is electrostatically attracted by the transfer belt 36 of the sheet conveying means 12, even if it is conveyed in a substantially vertical direction, it can be conveyed in the same manner as horizontal conveyance. As described above, if the transfer is performed by suction such as electrostatic suction or the like, the transfer performance is not impaired even if there is an angle. In this embodiment, the sheet is conveyed substantially vertically in order to minimize the distance of the sheet conveying path. However, the sheet conveying path may have a slope such as 45 °. The transfer belt 36 and the transfer brush a,
For b, c, and d, the transfer characteristics may be deteriorated due to abrasion of the surface and adhesion of dirt due to long-term use. In such a case, only the transfer belt 36 or the transfer brushes a,
Although maintenance can be performed by replacing only b, c, and d, replacement work is very troublesome. In view of this point, the present embodiment employs a batch exchange method so that an operator (user) can easily perform maintenance. Therefore, for example, when the transfer characteristics are deteriorated due to wear of the transfer belt 36, the operator removes the sheet conveying means 12 from the side cover 14 as one unit and replaces it with a new sheet conveying means 12.
【００２２】シート搬送手段１２による搬送路、すなわ
ち作像ユニットＡ，Ｂ，Ｃ，Ｄと転写ベルト３６間の搬
送路でジャムが生じた場合には、図３に示すように、側
面カバー１４が装置本体４外方に回動されて開放され
る。側面カバー１４は下端部を装置本体４に軸支されて
おり、一定の開放角度を維持できるようになっている。
また、側面カバー１４の上端部は装置本体４に対して係
脱自在となっている。側面カバー１４を開放すると、作
像ユニットＡ，Ｂ，Ｃ，Ｄからシート搬送手段１２が離
れるので、シート搬送手段１２による搬送路が大きく開
放される。この開放状態でオペレータはシートを取り除
く。When a jam occurs in the conveyance path of the sheet conveyance means 12, that is, in the conveyance path between the image forming units A, B, C, and D and the transfer belt 36, as shown in FIG. The apparatus body 4 is rotated outward and opened. The lower end of the side cover 14 is pivotally supported by the apparatus main body 4 so that a constant opening angle can be maintained.
Further, the upper end of the side cover 14 is detachable from the apparatus main body 4. When the side cover 14 is opened, the sheet conveying means 12 is separated from the image forming units A, B, C, and D, so that the conveying path of the sheet conveying means 12 is largely opened. In this open state, the operator removes the sheet.
【００２３】本実施例における構成では、側面カバー１
４内に従来の両面ユニットの機能であるシート反転搬送
部２５と再給紙手段２７を一体に設けているので、側面
カバー１４の外側に両面ユニット機能を増設したことに
より側面カバー１４の開閉が阻害されることが無い。換
言すれば、従来のように側面カバー１４の開閉に先立っ
て両面ユニットを開放するという動作は存在しない。こ
のため、構成の簡易化、低コスト化を図ることができる
とともにジャム処理操作性向上を図ることができる。両
面ユニット機能を従来のように増設機能として提供しよ
うとする場合には、増設に当たって、シート搬送手段１
２のみを有する側面カバー１４を、少なくとも再給紙手
段２７を有する側面カバー１４に交換するようにすれば
よい。In the configuration of this embodiment, the side cover 1
4, the sheet reversing and conveying unit 25 and the re-feeding unit 27, which are the functions of the conventional duplex unit, are provided integrally, so that the side cover 14 can be opened and closed by adding the duplex unit function outside the side cover 14. There is no hindrance. In other words, there is no operation of opening the duplex unit prior to opening and closing the side cover 14 as in the related art. For this reason, simplification of a structure and cost reduction can be attained, and operability of jam clearance can be improved. When the double-sided unit function is to be provided as an additional function as in the related art, the sheet transporting means 1
The side cover 14 having only 2 may be replaced with the side cover 14 having at least the sheet re-feeding means 27.
【００２４】また、本実施例では側面カバー１４が反転
手段の一部であるシート反転搬送部２５を一体に有する
構成としているが、シート反転は側面カバー１４の外部
で行なうようにしてもよい。例えば、排紙ローラ対２６
から排紙トレイ２８に排出される直前のシートをそのま
ま逆方向に移動させて反転させ、再給紙手段２７に導く
など、他の部分で反転動作を行なうように構成してもよ
い。Further, in this embodiment, the side cover 14 has a structure in which the sheet reversing / conveying section 25 which is a part of the reversing means is integrated, but the sheet reversing may be performed outside the side cover 14. For example, the paper discharge roller pair 26
Alternatively, the sheet immediately before being discharged to the sheet discharge tray 28 may be moved in the reverse direction as it is to reverse the sheet and guided to the sheet re-feeding means 27, and the reversing operation may be performed in another portion.
【００２５】一般的にジャムは給紙部８から作像ユニッ
トＡ，Ｂ，Ｃ，Ｄへ給送する部分、すなわちシート搬送
手段１２による搬送路と、作像ユニットＡ，Ｂ，Ｃ，Ｄ
から定着部１０へ搬送する部分で発生し易く、作像動作
を伴わず単にシートを搬送するだけのシート反転搬送部
２５（反転手段）、再給紙手段２７では発生頻度が低
い。また、ジャム処理操作に当たっては、作像ユニット
Ａ，Ｂ，Ｃ，Ｄ周辺は感光体表面などユーザーが触れる
ことを嫌う部品が多数あるが、シート反転搬送部２５、
再給紙手段２７はシートをガイドするガイド板と搬送コ
ロで構成されているだけなので、特に注意を要する部品
は少ない。In general, a jam is fed from the paper feeding unit 8 to the image forming units A, B, C, and D, that is, a conveying path of the sheet conveying means 12 and the image forming units A, B, C, and D.
It is easy to occur in the portion where the sheet is conveyed from the sheet feeding unit to the fixing unit 10, and the frequency of occurrence is low in the sheet reversing conveyance unit 25 (reversing unit) and the sheet re-feeding unit 27 which merely convey the sheet without the image forming operation. Further, in the jam clearing operation, there are many parts that the user does not want to touch, such as the surface of the photosensitive member, around the image forming units A, B, C, and D.
Since the sheet re-feeding means 27 is composed of only a guide plate for guiding a sheet and a conveying roller, there are few parts that require special attention.
【００２６】この観点から、再給紙手段２７でジャムが
発生した場合には、図４に示すように、側面カバー１４
を開放してシート搬送手段１２を取り外し、この状態で
シート搬送手段１２の側面カバー１４に対する装着面側
から、すなわち矢印Ｓ方向からジャムしたシートを取り
出す。図示しないが、再給紙手段２７におけるシート搬
送手段１２側のガイド板は回動可能となっており、シー
ト搬送手段１２を取り外した後このガイド板を回動して
搬送路を開放し、シートを取り出す。From this viewpoint, if a jam occurs in the sheet re-feeding means 27, as shown in FIG.
Is released and the sheet conveying means 12 is removed, and in this state, the jammed sheet is taken out from the mounting surface side of the sheet conveying means 12 with respect to the side cover 14, that is, from the direction of arrow S. Although not shown, the guide plate on the sheet conveying means 12 side of the sheet re-feeding means 27 is rotatable. After removing the sheet conveying means 12, the guide plate is rotated to open the conveying path, Take out.
【００２７】図５に示すように、シート搬送手段１２を
側面カバー１４に対して下端部を軸支して回動自在に設
け、側面カバー１４に対して退避できるようにして再給
紙手段２７のジャム処理を行なう構成とすることもでき
る。本実施例における操作は、まず側面カバー１４を開
放した後シート搬送手段１２を装置本体４側へ回動して
退避させる。その後、再給紙手段２７のガイド板を回動
して搬送路を開放し、シートを取り出す。本実施例で
は、シート搬送手段１２を持ち運ぶ必要がないので、シ
ート搬送手段１２を取り外す方式に比べてジャム処理作
業の容易化を図ることができる。As shown in FIG. 5, the sheet conveying means 12 is rotatably provided with its lower end pivotally supported by the side cover 14 so as to be retractable with respect to the side cover 14. May be configured to perform the jam processing. In the operation of the present embodiment, first, after the side cover 14 is opened, the sheet conveying means 12 is turned toward the apparatus main body 4 and retracted. Thereafter, the guide plate of the sheet re-feeding means 27 is rotated to open the conveyance path, and the sheet is taken out. In the present embodiment, since it is not necessary to carry the sheet conveying means 12, it is possible to facilitate the jam clearance operation as compared with a method in which the sheet conveying means 12 is removed.
【００２８】上述のように、シート搬送手段１２を取り
外すか又は退避させて再給紙手段２７のジャム処理を行
なう構成とすれば、ジャム処理を行なうために専用に設
けられる開閉扉や、シート反転搬送部２５、再給紙手段
２７を含む全体を退避させるための大掛かりな回動機構
などを設ける必要がない。これにより、コンパクト且つ
低コストな構成とすることができ、また、ジャム処理作
業も容易となる。As described above, if the sheet conveying means 12 is detached or retracted to perform the jam processing of the sheet re-feeding means 27, an opening / closing door provided exclusively for performing the jam processing, a sheet reversing means, and the like. There is no need to provide a large-scale rotating mechanism for retracting the entire unit including the transport unit 25 and the sheet re-feeding unit 27. Accordingly, a compact and low-cost configuration can be achieved, and a jam clearing operation is also facilitated.
【００２９】上記各実施例において、反転手段のシート
反転搬送部２５は、側面カバー１４内において、再給紙
手段２７を挟んでシート搬送手段１２の反対側に、換言
すれば側面カバー１４の最も外側に設けられている。再
給紙手段２７のジャム処理はシート搬送手段１２の側面
カバー１４に対する装着面側から行なうので、その反対
側の外側は扉開閉を伴うジャム処理操作を行なう搬送路
を配置するには好都合である。この観点からシート反転
搬送部２５を配置している。図示しないが、シート反転
搬送部２５の外側のガイド板と側面カバー１４の外板が
一体となって開閉できるようになっている。シート反転
搬送部２５でジャムが発生した場合には、側面カバー１
４の外板を回動して開放し、シート反転搬送部２５の搬
送路を開放した後でシートを取り出す。このため、コン
パクト且つ低コストな構成とすることができ、また、ジ
ャム処理作業も容易となる。In each of the above-described embodiments, the sheet reversing / conveying section 25 of the reversing means is located inside the side cover 14 on the opposite side of the sheet conveying means 12 with the re-feeding means 27 interposed therebetween, in other words, the most of the side cover 14 It is provided outside. Since the paper jam processing of the sheet re-feeding means 27 is performed from the mounting surface side of the sheet conveying means 12 with respect to the side cover 14, it is convenient to arrange a conveyance path for performing the jam processing operation with the opening and closing of the door on the outside on the opposite side. . From this viewpoint, the sheet reversing and conveying unit 25 is provided. Although not shown, a guide plate outside the sheet reversing and conveying unit 25 and an outer plate of the side cover 14 can be integrally opened and closed. If a jam occurs in the sheet reversing conveyance section 25, the side cover 1
The sheet is taken out after the outer plate of No. 4 is rotated and opened to open the conveyance path of the sheet reversing conveyance section 25. For this reason, a compact and low-cost configuration can be achieved, and the jam clearing operation is also facilitated.
【００３０】次に、図６に基づいて他の実施例を説明す
る。本実施例は、シート搬送手段１２の一部が再給紙手
段２７の搬送路のシート案内面を兼ねることを特徴とし
ている。図６に示すように、本実施例では、シート搬送
手段１２のフレーム３０の背面側（側面カバー１４への
装着面側）に再給紙手段２７のシートガイド板（シート
案内面）の一方をなすガイド面４６を形成し、このガイ
ド面４６に再給紙手段２７の搬送路の搬送コロ対４８，
５０の一方を設けている。従って、再給紙手段２７の搬
送路でジャムが発生した場合には、側面カバー１４を開
放し、シート搬送手段１２を装置本体４側に回動して退
避させるだけで再給紙手段２７の搬送路が開放され、そ
の後シートを取り出すだけの作業となる。シート搬送手
段１２は図４で示した例と同様に取り外すようにしても
よい。このようにすれば、シート搬送手段１２を取り外
し又は退避させた後、ガイド板を回動させる構成に比べ
て、ジャム処理操作が容易となる。また、シート搬送手
段１２のフレーム３０とシートガイド板が兼用となって
いるので、構成の簡易化、低コスト化を実現できる。Next, another embodiment will be described with reference to FIG. The present embodiment is characterized in that a part of the sheet conveying means 12 also serves as a sheet guide surface of a conveying path of the sheet re-feeding means 27. As shown in FIG. 6, in the present embodiment, one of the sheet guide plates (sheet guide surfaces) of the sheet re-feeding unit 27 is provided on the back side of the frame 30 of the sheet conveying unit 12 (the side on which the sheet is attached to the side cover 14). A guide surface 46 is formed, and a pair of transfer rollers 48,
50 are provided. Therefore, when a jam occurs in the transport path of the re-feeding means 27, the side cover 14 is opened, and the sheet transporting means 12 is turned to the apparatus main body 4 side and retracted, so that the re-feeding means 27 The transport path is opened, and then the operation is simply to take out the sheet. The sheet conveying means 12 may be detached similarly to the example shown in FIG. With this configuration, the jam clearing operation is easier than in a configuration in which the guide plate is rotated after the sheet conveying unit 12 is removed or retracted. In addition, since the frame 30 of the sheet conveying means 12 and the sheet guide plate are also used, simplification of the configuration and cost reduction can be realized.
【００３１】次に、図７及び図８に基づいて他の実施例
を説明する。本実施例では、図７に示すように、側面カ
バー１４内においてシート搬送手段１２の背面側に反転
手段のシート反転搬送部２５を設け、最も外側に再給紙
手段２７を設けている。従って、シート反転搬送部２５
でジャムが発生した場合には、図８に示すように、シー
ト搬送手段１２を取り外し又は退避させ、シート搬送手
段１２の側面カバー１４に対する装着面側からシート反
転搬送部２５のガイド板を回動してシートを取り出す。
再給紙手段２７でジャムが発生した場合には、上記実施
例におけるシート反転搬送部２５の場合と同様に、側面
カバー１４の外板を回動して搬送路を開放するようにす
る。なお、図８ではシート搬送手段１２を省略してい
る。このような構成とすることでジャム処理を行なうた
めのカバーや開閉機構がシート搬送手段１２の機構と共
用でき、小型化、低コスト化が実現できる。Next, another embodiment will be described with reference to FIGS. In this embodiment, as shown in FIG. 7, a sheet reversing / conveying section 25 of reversing means is provided on the rear side of the sheet conveying means 12 in the side cover 14, and a refeeding means 27 is provided on the outermost side. Therefore, the sheet reversing conveyance section 25
When the jam occurs, as shown in FIG. 8, the sheet conveying means 12 is removed or retracted, and the guide plate of the sheet reversing conveying section 25 is rotated from the mounting surface side of the sheet conveying means 12 with respect to the side cover 14. And take out the sheet.
When a jam occurs in the sheet re-feeding unit 27, the outer plate of the side cover 14 is rotated to open the conveyance path, similarly to the case of the sheet reversing conveyance unit 25 in the above embodiment. In FIG. 8, the sheet conveying means 12 is omitted. With such a configuration, the cover and the opening / closing mechanism for performing the jam processing can be shared with the mechanism of the sheet conveying means 12, and the size and cost can be reduced.
【００３２】また、図示しないが、本実施例においても
図６で示した例と同様に、シート搬送手段１２のフレー
ム３０の背面側にシート反転搬送部２５のシートガイド
板の一方をなすガイド面を形成する構成とすることがで
き、ジャム処理操作の容易化、構成の簡易化、低コスト
化を実現できる。なお、シート反転搬送部２５ではシー
トの上端部を挟持して垂れ下がらせるだけでよいので、
再給紙手段２７のように搬送コロ対をシート長以下の間
隔で配置する必要はなく、シート反転搬送部２５の入口
に１対の正逆回転可能な搬送コロ対があれば機能する。
従って、シート搬送手段１２のフレーム３０の背面側に
形成したガイド面に搬送コロを設ける必要がなく、図６
で示した例における兼用構成に比べて一層の小型化、低
コスト化が実現できる。Although not shown, in the present embodiment, similarly to the example shown in FIG. 6, a guide surface forming one of the sheet guide plates of the sheet reversing and conveying section 25 is provided on the back side of the frame 30 of the sheet conveying means 12. Can be formed, and simplification of the jam clearance operation, simplification of the configuration, and cost reduction can be realized. In the sheet reversing and conveying section 25, it is only necessary to pinch and hang the upper end of the sheet.
It is not necessary to arrange the conveying roller pairs at intervals equal to or less than the sheet length as in the sheet re-feeding unit 27, and it works if there is a pair of conveying roller pairs that can be rotated forward and backward at the entrance of the sheet reversing conveying unit 25.
Accordingly, there is no need to provide a conveying roller on the guide surface formed on the back side of the frame 30 of the sheet conveying means 12, and FIG.
The further reduction in size and cost can be realized as compared with the dual-use configuration in the example shown in FIG.
【００３３】[0033]
【発明の効果】請求項１記載の発明によれば、側面カバ
ーにシート搬送手段と再給紙手段を一体に設ける構成と
したので、側面カバーの外側に両面ユニット機能を設け
る必要がなく、構成の簡易化、ジャム処理操作の容易化
を図ることができる。According to the first aspect of the present invention, since the sheet conveying means and the sheet re-feeding means are integrally provided on the side cover, there is no need to provide a double-sided unit function outside the side cover. Can be simplified, and the jam clearing operation can be simplified.
【００３４】請求項２記載の発明によれば、シート搬送
手段がシートを吸着しながら搬送する転写ベルトを有し
ている構成としたので、略垂直や傾斜状態でも搬送性を
損なうことがなく、搬送距離の最短化を実現できる。According to the second aspect of the present invention, since the sheet conveying means has the transfer belt for conveying the sheet while adsorbing the sheet, the conveying property is not impaired even in a substantially vertical or inclined state. The transfer distance can be minimized.
【００３５】請求項３又は５記載の発明によれば、シー
ト搬送手段を取り外して再給紙手段内のシートをシート
搬送手段の装着面側より取り出す構成としたので、ジャ
ム処理を行なうために専用に設けられる開閉扉や、再給
紙手段を退避させるための大掛かりな回動機構などを設
ける必要がない。これにより、コンパクト且つ低コスト
な構成とすることができ、また、ジャム処理作業も容易
となる。According to the third or fifth aspect of the present invention, the sheet conveying means is detached and the sheet in the sheet re-feeding means is taken out from the mounting surface side of the sheet conveying means. It is not necessary to provide an opening / closing door provided in the printer or a large-scale rotating mechanism for retracting the sheet re-feeding means. Accordingly, a compact and low-cost configuration can be achieved, and a jam clearing operation is also facilitated.
【００３６】請求項４又は５記載の発明によれば、シー
ト搬送手段を退避させて再給紙手段内のシートをシート
搬送手段の装着面側より取り出す構成としたので、ジャ
ム処理を行なうために専用に設けられる開閉扉や、再給
紙手段を退避させるための大掛かりな回動機構などを設
ける必要がない。これにより、コンパクト且つ低コスト
な構成とすることができ、また、ジャム処理作業も容易
となる。According to the fourth or fifth aspect of the present invention, the sheet conveying means is retracted and the sheet in the sheet re-feeding means is taken out from the mounting surface side of the sheet conveying means. There is no need to provide a dedicated opening / closing door or a large-scale rotating mechanism for retracting the sheet re-feeding means. Accordingly, a compact and low-cost configuration can be achieved, and a jam clearing operation is also facilitated.
【００３７】請求項６記載の発明によれば、シート搬送
手段の一部が再給紙手段の搬送路のシート案内面を兼ね
る構成としたので、構成の簡易化、低コスト化を図れる
とともに、ジャム処理の操作性を一層向上させることが
できる。According to the sixth aspect of the present invention, since a part of the sheet conveying means also serves as the sheet guide surface of the conveying path of the re-feeding means, the structure can be simplified and the cost can be reduced. The operability of the jam processing can be further improved.
【００３８】請求項７記載の発明によれば、シート搬送
手段を取り外してシート反転搬送部のシートをシート搬
送手段の装着面側より取り出す構成としたので、ジャム
処理を行なうために専用に設けられる開閉扉や、再給紙
手段を退避させるための大掛かりな回動機構などを設け
る必要がない。これにより、コンパクト且つ低コストな
構成とすることができ、また、ジャム処理作業も容易と
なる。According to the seventh aspect of the present invention, since the sheet conveying means is detached and the sheet of the sheet reversing conveying section is taken out from the mounting surface side of the sheet conveying means, it is provided exclusively for performing jam clearance. There is no need to provide an opening / closing door or a large-scale rotating mechanism for retracting the sheet re-feeding means. Accordingly, a compact and low-cost configuration can be achieved, and a jam clearing operation is also facilitated.
【００３９】請求項８記載の発明によれば、シート搬送
手段を退避させてシート反転搬送部のシートをシート搬
送手段の装着面側より取り出す構成としたので、ジャム
処理を行なうために専用に設けられる開閉扉や、再給紙
手段を退避させるための大掛かりな回動機構などを設け
る必要がない。これにより、コンパクト且つ低コストな
構成とすることができ、また、ジャム処理作業も容易と
なる。According to the eighth aspect of the present invention, the sheet transporting means is retracted to take out the sheet of the sheet reversing transporting unit from the mounting surface side of the sheet transporting means. It is not necessary to provide an opening / closing door that can be used or a large-scale rotating mechanism for retracting the re-feeding unit. Accordingly, a compact and low-cost configuration can be achieved, and a jam clearing operation is also facilitated.
【００４０】請求項９記載の発明によれば、シート搬送
手段の一部がシート反転搬送部のシート案内面を兼ねる
構成としたので、構成の簡易化、低コスト化を図れると
ともに、ジャム処理の操作性を一層向上させることがで
きる。According to the ninth aspect of the invention, since a part of the sheet conveying means also serves as the sheet guide surface of the sheet reversing and conveying section, the structure can be simplified, the cost can be reduced, and the jam processing can be performed. Operability can be further improved.
【図１】本発明の一実施例に係る画像形成装置の概要正
面図である。FIG. 1 is a schematic front view of an image forming apparatus according to an embodiment of the present invention.
【図２】シート搬送手段の概要正面図である。FIG. 2 is a schematic front view of a sheet conveying means.
【図３】図１で示した画像形成装置において、側面カバ
ーを開放した状態の図である。FIG. 3 is a diagram of the image forming apparatus shown in FIG. 1 with a side cover opened.
【図４】図１で示した画像形成装置において、側面カバ
ーを開放した後、シート搬送手段を取り外した状態を示
す図である。FIG. 4 is a diagram illustrating a state in which a sheet conveying unit is removed after a side cover is opened in the image forming apparatus illustrated in FIG. 1;
【図５】他の実施例に係る画像形成装置において、側面
カバーを開放した後、シート搬送手段を退避させた状態
を示す図である。FIG. 5 is a diagram illustrating a state in which a sheet conveying unit is retracted after opening a side cover in an image forming apparatus according to another embodiment.
【図６】他の実施例に係る画像形成装置において、側面
カバーを開放した後、シート搬送手段を退避させた状態
を示す図である。FIG. 6 is a diagram illustrating a state in which a sheet conveying unit is retracted after opening a side cover in an image forming apparatus according to another embodiment.
【図７】他の実施例に係る画像形成装置の概要正面図で
ある。FIG. 7 is a schematic front view of an image forming apparatus according to another embodiment.
【図８】図７で示した画像形成装置において、側面カバ
ーを開放した状態の図である。8 is a view of the image forming apparatus shown in FIG. 7, with a side cover opened.
４ 装置本体 １２ シート搬送手段 １４ 側面カバー ２５ シート反転搬送部 ２７ 再給紙手段 ３６ 転写ベルト 4 Device Main Body 12 Sheet Conveying Means 14 Side Cover 25 Sheet Reverse Conveying Unit 27 Refeeding Means 36 Transfer Belt
Claims (9)
送しながら画像形成を行なう画像形成装置であって、装
置本体に対して開閉自在に設けられ上記シート搬送手段
を保持する側面カバーと、片面の画像形成後のシートを
反転させるための反転手段と、この反転手段により反転
されたシートを上記シート搬送手段の上流へ搬送する再
給紙手段を有し、上記側面カバーを開いたときに上記シ
ート搬送手段による搬送路が開放される画像形成装置に
おいて、 上記側面カバーが少なくも上記再給紙手段を一体に有し
ていることを特徴とする画像形成装置。1. An image forming apparatus for forming an image while conveying a sheet substantially vertically by a sheet conveying means, comprising: a side cover provided to be openable and closable with respect to an apparatus main body; Reversing means for reversing the sheet after image formation, and re-feeding means for conveying the sheet inverted by the reversing means to the upstream of the sheet conveying means, wherein the side cover is opened when the side cover is opened. An image forming apparatus in which a conveying path is opened by a sheet conveying means, wherein the side cover is at least provided with the refeeding means integrally.
転写ベルトを有していることを特徴とする画像形成装
置。2. An image forming apparatus according to claim 1, wherein said sheet conveying means has a transfer belt for conveying the sheet while sucking the sheet.
て、 上記シート搬送手段が上記側面カバーに対して着脱自在
に設けられ、上記再給紙手段内のシートが上記シート搬
送手段の上記側面カバーに対する装着面側より取り出し
可能であることを特徴とする画像形成装置。3. An image forming apparatus according to claim 1, wherein said sheet conveying means is detachably provided on said side cover, and a sheet in said sheet re-feeding means is provided on said side surface of said sheet conveying means. An image forming apparatus which can be taken out from a mounting surface side with respect to a cover.
て、 上記シート搬送手段が上記側面カバーに対して回動自在
に設けられ上記側面カバーを開いたときに装置本体側へ
退避可能であり、上記再給紙手段内のシートが上記シー
ト搬送手段の上記側面カバーに対する装着面側より取り
出し可能であることを特徴とする画像形成装置。4. The image forming apparatus according to claim 1, wherein said sheet conveying means is provided rotatably with respect to said side cover, and is retractable to the apparatus main body when said side cover is opened. An image forming apparatus wherein the sheet in the sheet re-feeding means can be taken out from the side of the sheet conveying means mounted on the side cover.
て、 上記反転手段のシート反転搬送部が、上記再給紙手段を
挟んだ上記シート搬送手段の反対側の位置をもって上記
側面カバーに一体に設けられていることを特徴とする画
像形成装置。5. The image forming apparatus according to claim 3, wherein the sheet reversing and conveying unit of the reversing unit is integrated with the side cover at a position opposite to the sheet conveying unit with respect to the re-feeding unit. An image forming apparatus provided in the image forming apparatus.
おいて、 上記シート搬送手段の一部が、上記再給紙手段の搬送路
のシート案内面を兼ねていることを特徴とする画像形成
装置。6. An image forming apparatus according to claim 3, wherein a part of said sheet conveying means also serves as a sheet guide surface of a conveying path of said re-feeding means. Forming equipment.
て、 上記反転手段のシート反転搬送部が上記シート搬送手段
と上記再給紙手段との間の位置をもって上記側面カバー
に一体に設けられ、上記シート搬送手段が上記側面カバ
ーに対して着脱自在に設けられ、上記シート反転搬送部
内のシートが上記シート搬送手段の上記側面カバーに対
する装着面側より取り出し可能であることを特徴とする
画像形成装置。7. The image forming apparatus according to claim 1, wherein the sheet reversing and conveying section of the reversing means is provided integrally with the side cover at a position between the sheet conveying means and the re-feeding means. Wherein the sheet conveying means is detachably provided with respect to the side cover, and a sheet in the sheet reversing conveyance section can be taken out from a mounting surface side of the sheet conveying means with respect to the side cover. apparatus.
て、 上記反転手段のシート反転搬送部が上記シート搬送手段
と上記再給紙手段との間の位置をもって上記側面カバー
に一体に設けられ、上記シート搬送手段が上記側面カバ
ーに対して回動自在に設けられ上記側面カバーを開いた
ときに装置本体側へ退避可能であり、上記シート反転搬
送部内のシートが上記シート搬送手段の上記側面カバー
に対する装着面側より取り出し可能であることを特徴と
する画像形成装置。8. An image forming apparatus according to claim 1, wherein said sheet reversing and conveying section of said reversing means is provided integrally with said side cover at a position between said sheet conveying means and said re-feeding means. The sheet conveying means is provided rotatably with respect to the side cover, and can be retracted to the apparatus main body side when the side cover is opened; An image forming apparatus which can be taken out from a mounting surface side with respect to a cover.
て、 上記シート搬送手段の一部が、上記シート反転搬送部の
シート案内面を兼ねていることを特徴とする画像形成装
置。9. An image forming apparatus according to claim 7, wherein a part of said sheet conveying means also serves as a sheet guide surface of said sheet reversing and conveying section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17401099A JP3668052B2 (en) | 1999-06-21 | 1999-06-21 | Image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17401099A JP3668052B2 (en) | 1999-06-21 | 1999-06-21 | Image forming apparatus |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003108153A Division JP2003330239A (en) | 2003-04-11 | 2003-04-11 | Image forming apparatus |
| JP2005044511A Division JP2005162492A (en) | 2005-02-21 | 2005-02-21 | Image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001002330A true JP2001002330A (en) | 2001-01-09 |
| JP3668052B2 JP3668052B2 (en) | 2005-07-06 |
Family
ID=15971075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17401099A Expired - Lifetime JP3668052B2 (en) | 1999-06-21 | 1999-06-21 | Image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3668052B2 (en) |
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| JP2006349754A (en) * | 2005-06-13 | 2006-12-28 | Fuji Xerox Co Ltd | Image forming apparatus |
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