JPH09278249A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPH09278249A JPH09278249A JP8114388A JP11438896A JPH09278249A JP H09278249 A JPH09278249 A JP H09278249A JP 8114388 A JP8114388 A JP 8114388A JP 11438896 A JP11438896 A JP 11438896A JP H09278249 A JPH09278249 A JP H09278249A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- recording paper
- recording
- fixing
- image
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/512—Changing form of handled material
- B65H2301/5125—Restoring form
- B65H2301/51256—Removing waviness or curl, smoothing
- B65H2301/512565—Removing waviness or curl, smoothing involving tri-roller arrangement
Landscapes
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Paper Feeding For Electrophotography (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、複写機，ファク
シミリ装置，プリンタ装置等の画像形成装置、特に文
字，画像情報を記録した記録紙の排紙の安定化と排紙部
の組付け精度の向上に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as a copying machine, a facsimile apparatus, a printer apparatus, etc. It is about improvement.
【０００２】[0002]
【従来の技術】電子写真方式を使用した複写機やプリン
タ装置等においては、文字，画像情報を記録した記録紙
を排紙スタッカ部に排紙して整列させるようにしてい
る。例えば、レ−ザプリンタは、図４の全体構成図に示
すように、本体ケ−ス１内のほぼ中央部に感光体２が設
けられ、感光体２の周囲には帯電器３と現像装置４と転
写装置５及びクリ−ニング装置６等が配置されている。
この感光体２等の下方には記録紙７を収納した給紙カセ
ット８と、給紙カセット８内の記録紙７を１枚ずつ給紙
する給紙ロ−ラ９と、給紙された記録紙７を所定のタイ
ミングで転写装置５へ送り出すレジストロ−ラ１０等が
設けられている。また、転写装置５の下流側には、転写
装置５により記録紙７へ転写された画像を定着させる定
着装置１１と、画像が定着された記録紙７をスタッカ部
１３へ排紙する排紙部１２が設けられている。排紙部１
２は排紙ロ−ラ１２１と記録紙７のカ−ル取り等をする
ため排紙ロ−ラ１２１に当接した２個の排紙コロ１２２
を有する。2. Description of the Related Art In a copying machine, a printer, or the like using an electrophotographic system, a recording paper on which characters and image information are recorded is discharged to a paper discharging stacker section and aligned. For example, in a laser printer, as shown in the overall configuration diagram of FIG. 4, a photoconductor 2 is provided in a substantially central portion of a main body case 1, and a charger 3 and a developing device are provided around the photoconductor 2. 4, a transfer device 5, a cleaning device 6 and the like are arranged.
Below the photoconductor 2 and the like, a paper feed cassette 8 that houses the recording paper 7, a paper feed roller 9 that feeds the recording papers 7 in the paper feed cassette 1 one by one, and the fed recording A registration roller 10 and the like for sending the paper 7 to the transfer device 5 at a predetermined timing are provided. Further, on the downstream side of the transfer device 5, a fixing device 11 for fixing the image transferred to the recording paper 7 by the transfer device 5, and a paper ejection unit for ejecting the recording paper 7 on which the image is fixed to the stacker unit 13 are provided. 12 are provided. Paper output section 1
The reference numeral 2 designates two paper ejection rollers 122 which are in contact with the paper ejection roller 121 for removing the curl of the paper ejection roller 121 and the recording paper 7.
Having.
【０００３】また、本体ケ−ス１内のスタッカ部１３の
下方には、金属製のケ−ス１４内に収納された電装部１
５が設けられており、電装部１５はコントロ−ラ基板１
６とコントロ−ラ基板１６上に取り付けられた各種の調
整スイッチや制御ユニット等により形成されている。さ
らにケ−ス１４の下方には電源１７や電装基板１８を収
納したケ−ス１９及び前記感光体２上へ書込みを行なう
光学装置２０が設けられている。Below the stacker section 13 in the main body case 1, the electrical equipment section 1 housed in a metallic case 14 is provided.
5 is provided, and the electrical component 15 is the controller substrate 1
6 and various control switches and control units mounted on the controller board 16. Further, below the case 14, there are provided a case 19 accommodating a power source 17 and an electric board 18, and an optical device 20 for writing on the photoconductor 2.
【０００４】そして感光体２の表面を帯電器３で帯電
し、帯電した感光体２上に光学装置２０からレ−ザビ−
ムを照射して静電潜像を形成する。この感光体２の潜像
に現像装置４でトナ−を付着させて可視化し、転写装置
５で給紙カセット８から送られた記録紙７に転写する。
画像情報を転写した記録紙７は定着装置１１に送られ、
熱と圧力で定着し、排紙部１２からスタッカ部１３に排
紙される。画像を記録紙７に転写した感光体２は残留ト
ナ−がクリ−ニング装置６で除去され、上記処理を繰り
返す。Then, the surface of the photoconductor 2 is charged by the charger 3, and a laser beam is emitted from the optical device 20 onto the charged photoconductor 2.
And an electrostatic latent image is formed. The developing device 4 attaches a toner to the latent image on the photoconductor 2 to visualize the latent image, and the transfer device 5 transfers the latent image to the recording paper 7 sent from the paper feed cassette 8.
The recording paper 7 on which the image information is transferred is sent to the fixing device 11,
It is fixed by heat and pressure, and is discharged from the paper discharge unit 12 to the stacker unit 13. The residual toner on the photoconductor 2 on which the image has been transferred to the recording paper 7 is removed by the cleaning device 6, and the above process is repeated.
【０００５】画像情報を記録した記録紙７を排紙する排
紙部１２の排紙ロ−ラ１２１は、コストダウンや静電気
等の問題から合成樹脂で形成し、この排紙ロ−ラ１２１
を、図５の斜視図に示すように、金属製の回転軸１２３
に固定している。そして回転軸１２３の中央部に補強用
部材１２４を設けて、排紙ロ−ラ１２１を排紙コロ１２
２と接触する所定の位置に位置決めするようにしてい
る。そして、定着装置１１で画像が定着された記録紙７
は定着装置１１の後段に設けた定着後ガイド１１１に案
内されて排紙部１２に送られ、排紙ロ−ラ１２１と２個
の排紙コロ１２２によりスタッカ部１３に排紙される。The discharge roller 121 of the discharge unit 12 for discharging the recording paper 7 on which the image information is recorded is made of synthetic resin due to problems such as cost reduction and static electricity.
As shown in the perspective view of FIG.
It is fixed to. A reinforcing member 124 is provided at the center of the rotary shaft 123 so that the paper output roller 121 is attached to the paper output roller 12.
It is arranged to be positioned at a predetermined position in contact with 2. Then, the recording paper 7 on which the image is fixed by the fixing device 11
The sheet is guided by a post-fixing guide 111 provided in the latter stage of the fixing device 11 and is sent to the sheet discharge section 12, and is discharged to the stacker section 13 by a sheet discharge roller 121 and two sheet discharge rollers 122.
【０００６】[0006]
【発明が解決しようとする課題】上記のように排紙ロ−
ラ１２１と排紙ロ−ラ１２１の下部に接触した２個の排
紙コロ１２２を有する排紙部１２の排紙ロ−ラ１２１
を、図６に示すように、時計方向に回転して記録紙７を
排紙するとき、排紙される記録紙７は排紙ロ−ラ１２１
の回転方向と、排紙ロ−ラ１２１と後段の排紙コロ１２
２との接触位置の関係から、矢印Ａで示す斜め上方向に
排紙され、本来理想的とされる水平方向Ｘにはならな
い。このため排紙された記録紙７は、図７に示すよう
に、Ｓ字状に彎曲してしまい、記録紙７を正常に送るこ
とができなくなり、記録紙７をスタッカ部１３へ正しく
スタックすることができなくなってしまう。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
Of the paper output roller 121 of the paper output unit 12 having two paper output rollers 122 contacting the lower part of the paper output roller 121 and the paper output roller 121.
As shown in FIG. 6, when the recording paper 7 is discharged by rotating clockwise, the recording paper 7 to be discharged is the discharge roller 121.
Rotation direction, the paper output roller 121 and the paper output roller 12 in the subsequent stage
Due to the relationship of the contact position with the sheet 2, the sheet is ejected in the obliquely upward direction indicated by the arrow A, and the originally ideal horizontal direction X is not obtained. For this reason, the discharged recording paper 7 is bent into an S-shape as shown in FIG. 7, the recording paper 7 cannot be fed normally, and the recording paper 7 is correctly stacked on the stacker unit 13. I will not be able to.
【０００７】また、排紙部１２に記録紙７を案内する定
着後ガイド１１１は合成樹脂で形成され定着装置１１の
直後に設けてあるため、長期間使用していると定着装置
１１の熱により、例えば図８に示すように上下方向に変
形する可能性がある。この定着後ガイド１１１が変形す
ると、場合によっては記録紙７が排紙部１２に正常の送
られなくなり、記録紙ジャムが生じる危険性がある。Further, since the post-fixing guide 111 for guiding the recording paper 7 to the paper discharge section 12 is made of a synthetic resin and is provided immediately after the fixing device 11, if it is used for a long time, the heat of the fixing device 11 causes For example, there is a possibility of vertical deformation as shown in FIG. If the post-fixing guide 111 is deformed, the recording paper 7 may not be normally fed to the paper output unit 12 and a recording paper jam may occur.
【０００８】この発明はかかる短所を改善するためにな
されたものであり、排紙する記録紙を正しくスタックす
るとともに長期間使用しても安定して記録紙を排紙する
ことができる画像形成装置を得ることを目的とするもの
である。The present invention has been made in order to solve the above drawbacks, and an image forming apparatus capable of stacking recording paper sheets to be ejected correctly and stably ejecting the recording paper sheets even after long-term use. The purpose is to obtain.
【０００９】[0009]
【課題を解決するための手段】この発明に係る画像形成
装置は、入力した画像のトナ−像を感光体表面に形成
し、感光体に形成されたトナ−像を記録紙に転写し、記
録紙に転写したトナ−像を定着し、画像が記録された記
録紙を排紙する画像形成装置において、画像が記録され
た記録紙を排紙する記録紙排紙ロ−ラを支持して回転す
る排紙ロ−ラ支持軸に設けられ、記録紙排紙ロ−ラの振
れを防止する補強用部材に記録紙の排紙方向を規制する
排紙ガイド部を設けたことを特徴とする。An image forming apparatus according to the present invention forms a toner image of an input image on a surface of a photoconductor, transfers the toner image formed on the photoconductor to a recording paper, and records the image. In the image forming apparatus that fixes the toner image transferred to the paper and discharges the recording paper on which the image is recorded, the recording paper discharging roller that discharges the recording paper on which the image is recorded is supported and rotated. It is characterized in that a paper discharge guide portion for restricting the paper discharge direction of the recording paper is provided on a reinforcing member provided on the paper discharge roller support shaft for preventing the recording paper discharge roller from swinging.
【００１０】上記画像形成装置において、トナ−像が定
着された記録紙を上記記録紙排紙ロ−ラに案内する定着
装置の定着後ガイド部材端部を上記記録紙排紙ロ−ラの
振れを防止する補強用部材に保持させることが望まし
い。In the above image forming apparatus, the end of the fixing member after fixing of the fixing device for guiding the recording paper on which the toner image is fixed to the recording paper discharge roller is shaken by the recording paper discharge roller. It is desirable to hold it by a reinforcing member that prevents
【００１１】また、上記補強用部材に取り付けられ、定
着後ガイド部材に沿って配置した補強用カバ−を有する
と良い。Further, it is preferable to have a reinforcing cover attached to the reinforcing member and arranged along the post-fixing guide member.
【００１２】[0012]
【発明の実施の形態】この発明においては、画像形成装
置の記録紙をスタッカ部に送り出す排紙部に複数の排紙
ロ−ラと、各排紙ロ−ラの下部に設けられた２個の排紙
コロと、排紙ロ−ラを取り付けた回転軸の中央部に設け
られた補強用部材を有する。補強用部材のスタッカ部側
の先端には突出した排紙ガイド部が設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a plurality of paper ejection rollers are provided in a paper ejection portion for feeding recording paper of an image forming apparatus to a stacker portion, and two paper ejection rollers are provided below the respective paper ejection rollers. And a reinforcing member provided at the center of the rotary shaft to which the paper ejection roller is attached. A protruding paper ejection guide portion is provided at the tip of the reinforcing member on the stacker portion side.
【００１３】排紙部に送られた記録紙は排紙ロ−ラと２
つの排紙コロにより搬送されながら、排紙コロでカ−ル
が修正されてスタッカ部に排紙される。この記録紙を排
紙するときに補強用部材の先端部に設けた排紙ガイド部
で記録紙の排紙方向を規制して記録紙全体を安定してス
タッカ部にスタックさせる。The recording paper sent to the paper output unit is a paper output roller and a paper output roller.
While being conveyed by one sheet discharge roller, the curl is corrected by the sheet discharge roller and the sheet is discharged to the stacker section. When this recording paper is discharged, the discharge guide portion provided at the tip of the reinforcing member regulates the discharge direction of the recording paper, and the entire recording paper is stably stacked on the stacker.
【００１４】また、記録した記録紙を定着装置から排紙
部に案内する定着後ガイドの先端部中央を補強用部材に
固定して、定着後ガイドが定着装置の熱により変形する
ことを抑え、記録紙を安定して案内させる。Further, the center of the front end portion of the post-fixing guide for guiding the recorded recording paper from the fixing device to the paper discharge portion is fixed to the reinforcing member to prevent the post-fixing guide from being deformed by the heat of the fixing device. Guide the recording paper stably.
【００１５】さらに、定着後ガイドの外部に定着後ガイ
ドと局部的に接触する金属製の補強用カバ−を配置し、
補強用カバ−の先端部を補強用部材に固定し、定着後ガ
イドの熱変形をより抑制する。Further, a reinforcing cover made of metal which is locally in contact with the post-fixing guide is arranged outside the post-fixing guide.
The tip of the reinforcing cover is fixed to the reinforcing member to further suppress thermal deformation of the guide after fixing.
【００１６】[0016]
【実施例】図１，図２はこの発明の一実施例のレ−ザプ
リンタの排紙部を示す構成図であり、図１は側面図、図
２は斜視図である。レ−ザプリンタは、排紙部１２を除
いては図４に示した装置と全く同じ構成である。排紙部
１２は、回転軸１２３に固定された複数の排紙ロ−ラ１
２１と、各排紙ロ−ラ１２１の下部に設けられた２個の
排紙コロ１２２と、回転軸１２３の中央部に設けられ、
排紙ロ−ラ１２１を排紙コロ１２２と接触する所定の位
置に位置決めする補強用部材１２４とを有する。補強用
部材１２４のスタッカ部１３側の先端に突出してスタッ
カ部１３のスタック面１３１とほぼ平行な排紙ガイド部
１２４ａが設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 are structural views showing the sheet discharge portion of a laser printer according to an embodiment of the present invention. FIG. 1 is a side view and FIG. 2 is a perspective view. The laser printer has exactly the same configuration as that of the apparatus shown in FIG. The paper discharge unit 12 includes a plurality of paper discharge rollers 1 fixed to the rotary shaft 123.
21, two discharge rollers 122 provided at the bottom of each discharge roller 121, and a central portion of the rotary shaft 123,
It has a reinforcing member 124 for positioning the paper discharge roller 121 at a predetermined position in contact with the paper discharge roller 122. A paper ejection guide portion 124 a is provided which protrudes from the tip of the reinforcing member 124 on the stacker portion 13 side and is substantially parallel to the stack surface 131 of the stacker portion 13.
【００１７】上記のように構成した排紙部１２に、定着
装置１１でトナ−像が定着された記録紙７が定着装置１
１の後段に設けた定着後ガイド１１１に案内されて送ら
れると、送られた記録紙７は時計方向に回転する排紙ロ
−ラ１２１と２つの排紙コロ１２２により搬送されなが
ら、排紙コロ１２２でカ−ルが修正されて排紙される。
排紙される記録紙７の先端部は斜め上方向に送り出され
るが、図１に示すように、補強用部材１２４の先端部に
設けた排紙ガイド部１２４ａに接触して、排紙方向がほ
ぼスタッカ部１３のスタック面１３１と平行に修正さ
れ、滑らかに彎曲してスタッカ部１３に排紙される。し
たがって、排紙された記録紙７の後端部に大きな撓みが
生じなく、記録紙７全体を安定してスタッカ部１３にス
タックすることができる。また、排紙する記録紙７の排
紙方向を規制する排紙ガイド部１２４ａを補強用部材１
２４と一体に形成したから、排紙部１２の組立作業を簡
単に行うことができる。The recording paper 7 on which the toner image has been fixed by the fixing device 11 is fixed to the fixing device 1 on the paper discharge section 12 having the above-described structure.
When the recording paper 7 is guided and fed by the post-fixing guide 111 provided in the latter stage of the first sheet, the recording paper 7 is ejected while being conveyed by the paper ejection roller 121 and the two paper ejection rollers 122 that rotate clockwise. The curl is corrected by the roller 122 and the sheet is ejected.
Although the front end of the recording paper 7 to be ejected is sent out in an obliquely upward direction, as shown in FIG. 1, the recording paper 7 comes into contact with a paper ejection guide portion 124a provided at the front end of the reinforcing member 124 so that the paper ejection direction is changed. The sheet is corrected to be substantially parallel to the stack surface 131 of the stacker unit 13, is smoothly curved, and is discharged to the stacker unit 13. Accordingly, the rear end of the discharged recording paper 7 is not largely bent, and the entire recording paper 7 can be stably stacked on the stacker unit 13. In addition, the reinforcing member 1 is provided with a paper ejection guide portion 124a that regulates the paper ejection direction of the recording paper 7 that is ejected.
Since it is formed integrally with 24, the assembly work of the paper discharge unit 12 can be easily performed.
【００１８】上記のように画像情報を記録した記録紙７
を定着装置１１から排紙部１２に送るときに、定着装置
１１の後段に設けた定着後ガイド１１１で記録紙７を案
内しているが、定着後ガイド１１１は合成樹脂で形成さ
れ定着装置１１の直後に設けてあるため、長期間使用し
ていると定着装置１１の熱により変形する可能性があ
る。そこで、図３に示すように、補強用部材１２４の定
着装置１１側に凹溝１２４ｂを設け、この凹溝１２４ｂ
の定着後ガイド１１１の先端部中央を嵌め込むと良い。
このように補強用部材１２４の凹溝１２４ｂの定着後ガ
イド１１１の先端部中央を嵌め込んで固定することによ
り、定着後ガイド１１１が定着装置１１の熱により変形
することを抑えることができる。したがって長期間使用
しても、定着装置１１から排紙部１２に送る記録紙７を
安定して案内することができ、定着装置１１と排紙部１
２との間で記録紙ジャムが発生することを防止すること
ができる。また、補強用部材１２４を利用して定着後ガ
イド１１１の熱変形を抑制するようにしたから、定着後
ガイド１１１の熱変形抑制用の部材が必要でなく、組付
け作業を単純化でき、コストダウンを図ることができ
る。A recording paper 7 on which image information is recorded as described above.
When the recording sheet 7 is fed from the fixing device 11 to the paper output unit 12, the recording sheet 7 is guided by the post-fixing guide 111 provided at the rear stage of the fixing device 11. The post-fixing guide 111 is made of synthetic resin and is formed by the fixing device 11. Since it is provided immediately after, it may be deformed by the heat of the fixing device 11 if it is used for a long time. Therefore, as shown in FIG. 3, a concave groove 124b is provided on the side of the fixing member 11 of the reinforcing member 124, and the concave groove 124b is formed.
After fixing, the center of the tip of the guide 111 may be fitted.
By thus fitting and fixing the center of the tip of the post-fixing guide 111 of the concave groove 124b of the reinforcing member 124, it is possible to prevent the post-fixing guide 111 from being deformed by the heat of the fixing device 11. Therefore, even if the fixing device 11 is used for a long period of time, the recording paper 7 sent from the fixing device 11 to the paper discharge unit 12 can be stably guided, and the fixing device 11 and the paper discharge unit 1 can be used.
It is possible to prevent a recording paper jam from occurring between the two. Further, since the reinforcing member 124 is used to suppress the thermal deformation of the post-fixing guide 111, a member for suppressing the thermal deformation of the post-fixing guide 111 is not required, and the assembling work can be simplified and the cost can be reduced. Can be down.
【００１９】また、図２，図３に示すように、定着後ガ
イド１１１の外部に定着後ガイド１１１と接触する凸部
や凸溝を有する金属製の補強用カバ−１１２を配置し、
補強用カバ−１１２の先端部を補強用部材１２４にねじ
により固定するようにしても良い。このように定着後ガ
イド１１１の外部に補強用カバ−１１２を配置すること
により、定着後ガイド１１１の熱変形をより抑制するこ
とができるとともに、定着装置１１か他の部分に発散す
る熱をより低減することができる。Further, as shown in FIGS. 2 and 3, a metallic reinforcing cover 112 having a convex portion or a convex groove which contacts the post-fixing guide 111 is arranged outside the post-fixing guide 111,
The tip end of the reinforcing cover 112 may be fixed to the reinforcing member 124 with a screw. By disposing the reinforcing cover 112 outside the post-fixing guide 111 as described above, thermal deformation of the post-fixing guide 111 can be further suppressed, and heat radiated to the fixing device 11 or other parts can be further suppressed. It can be reduced.
【００２０】[0020]
【発明の効果】この発明は以上説明したように、排紙部
に送られた記録紙を排紙するときに、排紙部の排紙ロ−
ラの位置決めをする補強用部材の先端部に設けた排紙ガ
イド部で記録紙の排紙方向を規制して送り出すようにし
たから、記録紙全体を安定してスタッカ部にスタックさ
せることができる。As described above, according to the present invention, when the recording paper sent to the paper discharge unit is discharged, the discharge roll of the paper discharge unit is used.
Since the paper ejection guide portion provided at the tip of the reinforcing member for positioning the recording sheet regulates the paper ejection direction and feeds the recording paper, the entire recording paper can be stably stacked on the stacker unit. .
【００２１】また、記録した記録紙を定着装置から排紙
部に案内する定着後ガイドの先端部中央を補強用部材に
固定して、定着後ガイドが定着装置の熱により変形する
ことを抑えるようにしたから、定着後ガイドで記録紙を
安定して案内させることができ、記録紙ジャムの発生を
防止することができる。Further, the center of the front end portion of the post-fixing guide for guiding the recorded recording paper from the fixing device to the paper discharge portion is fixed to the reinforcing member to prevent the post-fixing guide from being deformed by the heat of the fixing device. Therefore, the recording paper can be stably guided by the post-fixing guide, and the occurrence of recording paper jam can be prevented.
【００２２】さらに、定着後ガイドの外部に定着後ガイ
ドと局部的に接触する金属製の補強用カバ−を配置し、
補強用カバ−の先端部を補強用部材に固定することによ
り、定着後ガイドの熱変形をより抑制することができ
る。Further, a metal reinforcing cover which is locally in contact with the post-fixing guide is arranged outside the post-fixing guide,
By fixing the tip of the reinforcing cover to the reinforcing member, thermal deformation of the post-fixing guide can be further suppressed.
【００２３】また、排紙ガイド部を補強用部材と一体に
形成したり、補強用部材に定着後ガイドや補強用カバ−
を固定するようにしたから、記録紙の排紙方向を規制す
る専用の部材や定着後ガイドの熱変形を抑制するための
専用の部材が必要でなく、装置の組付け性の向上やコス
トダウンを図ることができる。Further, the discharge guide portion may be formed integrally with the reinforcing member, or the post-fixing guide or the reinforcing cover may be attached to the reinforcing member.
Since it is fixed, there is no need for a dedicated member that controls the paper discharge direction of the recording paper or a dedicated member that suppresses thermal deformation of the post-fixing guide. Can be achieved.
【図１】この発明の実施例のレ−ザプリンタの排紙部を
示す側面図である。FIG. 1 is a side view showing a paper discharge section of a laser printer according to an embodiment of the present invention.
【図２】上記排紙部の斜視図である。FIG. 2 is a perspective view of the paper discharge unit.
【図３】他の実施例の排紙部を示す側面図である。FIG. 3 is a side view showing a paper discharge unit of another embodiment.
【図４】レ−ザプリンタの全体構成図である。FIG. 4 is an overall configuration diagram of a laser printer.
【図５】従来の排紙部を示す側面図である。FIG. 5 is a side view showing a conventional paper discharge unit.
【図６】従来の排紙部の排紙方向を示す側面図である。FIG. 6 is a side view showing a paper discharge direction of a conventional paper discharge unit.
【図７】従来の排紙部の排紙動作を示す側面図である。FIG. 7 is a side view showing a paper discharge operation of a conventional paper discharge unit.
【図８】定着後ガイドの熱変形を示す斜視図である。FIG. 8 is a perspective view showing thermal deformation of a post-fixing guide.
７ 記録紙 １１ 定着装置 １２ 排紙部 １３ スタッカ部 １１１ 定着後ガイド １１２ 補強用カバ− １２１ 排紙ロ−ラ １２２ 排紙コロ １２３ 回転軸 １２４ 補強用部材 １２４ａ 排紙ガイド部 7 Recording Paper 11 Fixing Device 12 Paper Ejection Section 13 Stacker Section 111 Post-Fixing Guide 112 Reinforcement Cover 121 Ejection Roller 122 Ejection Roller 123 Rotation Shaft 124 Reinforcing Member 124a Ejection Guide Section
Claims (3)
形成し、感光体に形成されたトナ−像を記録紙に転写
し、記録紙に転写したトナ−像を定着し、画像が記録さ
れた記録紙を排紙する画像形成装置において、 画像が記録された記録紙を排紙する記録紙排紙ロ−ラを
支持して回転する排紙ロ−ラ支持軸に設けられ、記録紙
排紙ロ−ラの振れを防止する補強用部材に記録紙の排紙
方向を規制する排紙ガイド部を設けたことを特徴とする
画像形成装置。1. A toner image of an input image is formed on the surface of a photoconductor, the toner image formed on the photoconductor is transferred to a recording paper, and the toner image transferred to the recording paper is fixed to form an image. In an image forming apparatus for ejecting recorded recording paper, a recording paper ejection roller for ejecting recording paper on which an image is ejected is provided on a paper ejection roller support shaft that rotates to support recording. An image forming apparatus characterized in that a reinforcing member for preventing shake of a paper discharging roller is provided with a paper discharging guide portion for restricting a discharging direction of recording paper.
紙排紙ロ−ラに案内する定着装置の定着後ガイド部材端
部を上記記録紙排紙ロ−ラの振れを防止する補強用部材
に保持させた請求項１記載の画像形成装置。2. An end portion of a fixing member after fixing of a fixing device for guiding a recording sheet having a toner image fixed thereon to the recording sheet discharging roller is reinforced to prevent the recording sheet discharging roller from swinging. The image forming apparatus according to claim 1, wherein the image forming apparatus holds the image forming member.
ガイド部材に沿って配置した補強用カバ−を有する請求
項２記載の画像形成装置。3. The image forming apparatus according to claim 2, further comprising a reinforcing cover attached to the reinforcing member and arranged along the post-fixing guide member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11438896A JP3501900B2 (en) | 1996-04-12 | 1996-04-12 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11438896A JP3501900B2 (en) | 1996-04-12 | 1996-04-12 | Image forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09278249A true JPH09278249A (en) | 1997-10-28 |
| JP3501900B2 JP3501900B2 (en) | 2004-03-02 |
Family
ID=14636434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11438896A Expired - Lifetime JP3501900B2 (en) | 1996-04-12 | 1996-04-12 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3501900B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011173720A (en) * | 2010-02-26 | 2011-09-08 | Kyocera Mita Corp | Image forming device |
-
1996
- 1996-04-12 JP JP11438896A patent/JP3501900B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011173720A (en) * | 2010-02-26 | 2011-09-08 | Kyocera Mita Corp | Image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3501900B2 (en) | 2004-03-02 |
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