JPS5811963A - Paper feeding device - Google Patents
Paper feeding deviceInfo
- Publication number
- JPS5811963A JPS5811963A JP56110495A JP11049581A JPS5811963A JP S5811963 A JPS5811963 A JP S5811963A JP 56110495 A JP56110495 A JP 56110495A JP 11049581 A JP11049581 A JP 11049581A JP S5811963 A JPS5811963 A JP S5811963A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- transfer paper
- paper
- rollers
- paper feeding
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
- G03G15/6558—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
- G03G2215/00405—Registration device
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00535—Stable handling of copy medium
- G03G2215/00687—Handling details
- G03G2215/00704—Curl adding, bending
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Paper Feeding For Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、電子複写機に転写紙を給送する給紙装置に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feeding device for feeding transfer paper to an electronic copying machine.
従来から、電子複写機の感光体ドラムに転写紙を給送す
る給紙装置として、給紙経路に曲面を有するガイド部材
を配置し、このガイド部材の曲面に沿って転写紙を給送
して感光体ドラムから離れる方向へ転写紙を曲げるもの
、または、給紙経路において転写紙の先端部を感光体ド
ラムから離れる方向へ折り曲げるものなどが知られてい
る。Conventionally, as a paper feeding device that feeds transfer paper to the photoreceptor drum of an electronic copying machine, a guide member having a curved surface is arranged in the paper feeding path, and the transfer paper is fed along the curved surface of this guide member. There are known methods that bend the transfer paper in the direction away from the photoreceptor drum, or methods that bend the leading end of the transfer paper in the paper feed path in the direction away from the photoreceptor drum.
しかし、前者は、転写紙を充分に曲げることができない
という欠点があり、また、後者は転写紙に折り曲げた跡
が残る可能性があるという欠点がある。However, the former has the disadvantage that the transfer paper cannot be bent sufficiently, and the latter has the disadvantage that bending marks may remain on the transfer paper.
本発明の目的は、上述の欠点を解消することができる給
紙装置を提供することにある。An object of the present invention is to provide a paper feeding device that can eliminate the above-mentioned drawbacks.
本発明は、給紙経路にそれぞれ１対の第１四−ラーおよ
び第２０−ラーを給紙方向へ所定間隔をおいて配置し、
これらのローラーの間にローラーのニップ部を含む平面
に対しその一部が一方向へ突出した曲面を有するガイド
部材を配置し、かつ、第２０−ラーを一時的に停止して
転写紙の先端部を停止してローラーの間に転写紙を曲げ
た状態で一時的に待機させることを特徴とする。According to the present invention, a pair of a first fourth roller and a twentieth roller are arranged in a paper feeding path at a predetermined interval in the paper feeding direction,
A guide member having a curved surface, a part of which protrudes in one direction with respect to a plane including the nip portion of the rollers, is arranged between these rollers, and the 20th roller is temporarily stopped to guide the leading edge of the transfer paper. It is characterized by stopping the transfer section and temporarily holding the transfer paper in a bent state between the rollers.
以下に図示した実施例に基づいて本発明の詳細な説明す
る。The present invention will be described in detail below based on the illustrated embodiments.
第１図において符号１は感光体ドラムを示しており、こ
の感光体ドラム１は矢印ａ方向へ図示してない駆動手段
により回転される。この感光体ドラム１の周囲には、帯
電チャージャー２、露光装置３、現像装置４、給紙装置
５、転写チャージャー６、分離チャージャー７、分離爪
８、紙搬送装置９、クリーニング装置１０、および、除
電ランプ１１などが所定位置に配置されている。In FIG. 1, reference numeral 1 indicates a photosensitive drum, and this photosensitive drum 1 is rotated in the direction of arrow a by a driving means (not shown). Around the photosensitive drum 1, there are a charging charger 2, an exposure device 3, a developing device 4, a paper feed device 5, a transfer charger 6, a separation charger 7, a separation claw 8, a paper conveyance device 9, a cleaning device 10, and A static elimination lamp 11 and the like are arranged at predetermined positions.
上記給紙装置５は、複数の転写紙５１を積層して収容す
るカセット５２と、このカセット５２の上に配置されて
いて転写紙５１をカセット５２から送り出す給紙コロ５
３と、この給紙コロ５３と転写チャージャー６との間の
給紙経路に所定間隔をおいて配置されたそれぞれ１対の
第１０−ラー５４および第２０−ラー５５と、給紙コロ
５３と第１０−ラー５４との間に配置されたガイド部材
５６と、第１０−ラー５４と第２０−ラー５５の間に配
置されたガイド部材５７とからなる。上記ガイド部材５
７は、その一部が第１０−ラー５４および第２０−ラー
５５のニップ部を含む第２図の二点鎖線Ａで示す平面に
対し上へ突出する曲面を有するように形成されている。The paper feeding device 5 includes a cassette 52 that stores a plurality of transfer papers 51 in a stacked manner, and a paper feeding roller 5 that is disposed on the cassette 52 and feeds the transfer paper 51 from the cassette 52.
3, a pair of 10th rollers 54 and a 20th roller 55, which are arranged at a predetermined interval on the paper feeding path between the paper feeding rollers 53 and the transfer charger 6; It consists of a guide member 56 arranged between the 10th roller 54 and a guide member 57 arranged between the 10th roller 54 and the 20th roller 55. The guide member 5
7 is formed so as to have a curved surface that partially protrudes upward with respect to the plane indicated by the two-dot chain line A in FIG.
上記給紙コロ５３によりカセット５２から送り出された
転写紙５１はガイド部材５６により案内されて回転して
いる第１０−ラー５４の間に挿入されて第２図に示すよ
うに第１０−ラー５４により給送される。第１０−ラー
５４により給送される転写紙５１はガイド部材５７の曲
面に案内されながら給送されてその先端部が第３図に示
すように第２０−ラー５５のニップ部に当接する。この
場合には第２０−ラー５５は一時的に回転が停止されて
いてこの第２０−ラー５５により転写紙５１の先端部が
停止される。第２０−ラー５５に転写紙５１の先端部が
停止されても第１０−ラー５４は所定時間だけ回転して
転写紙５１を給送してガイド部材５７の曲面の突出方向
すなわち上方向へ曲げて停止し第１０−ラー５４と第２
０−ラー５５との間に一時的に転写紙５１を曲げた状態
で待機させる。・
次に上記感光体ドラム１の画像に転写紙５１を同期させ
るように第５図に示すように第２０−ラー５５が回転を
開始すると共に第１０−ラー５４のそれぞれのローラー
が離隔する方向へ移動されて第６図に示すように第２０
−ラー５５により転写紙５１が給送される。次に第２０
−ラー５５は転写紙５１を送り終えてから停止し、かつ
、第１０−ラー５４は１対のローラーが接近する方向へ
移動されて圧接されて、給紙コロ５３から次に送られて
くる転写紙５１を給送することができる状態となる。The transfer paper 51 sent out from the cassette 52 by the paper feed roller 53 is guided by a guide member 56 and inserted between the rotating 10th rollers 54, as shown in FIG. It is fed by. The transfer paper 51 fed by the tenth roller 54 is fed while being guided by the curved surface of the guide member 57, and its leading end comes into contact with the nip portion of the twentieth roller 55 as shown in FIG. In this case, the rotation of the 20th roller 55 is temporarily stopped, and the leading end of the transfer paper 51 is stopped by the 20th roller 55. Even if the leading end of the transfer paper 51 is stopped by the 20th roller 55, the 10th roller 54 rotates for a predetermined time to feed the transfer paper 51 and bend it in the direction in which the curved surface of the guide member 57 protrudes, that is, upward. 10th-ra 54 and 2nd
The transfer paper 51 is temporarily held in a bent state between the paper 51 and the roller 55. - Next, in order to synchronize the transfer paper 51 with the image on the photosensitive drum 1, the 20th roller 55 starts rotating as shown in FIG. 5, and the respective rollers of the 10th roller 54 move away from each other 20 as shown in Figure 6.
- The transfer paper 51 is fed by the roller 55. Then the 20th
The - roller 55 stops after feeding the transfer paper 51, and the 10th roller 54 is moved in the direction in which the pair of rollers approach and are pressed against each other, and is fed next from the paper feed roller 53. A state is reached in which the transfer paper 51 can be fed.
上記転写紙５１が曲げるのに困難な厚さである場合には
、この程度の厚さの転写紙５１は本半曲げなくても感光
体ドラム１から分離が容易であるので、この場合には第
２０−ラー５５を一時的忙停止して転写紙５１を曲げる
手段を解除すればよい。第２０−ラー５５を一時的に停
止して転写紙５１を曲げる手段の解除は、第２０−ラー
５５の駆動手段の切替のスイッチを手動で操作して行な
ってもよく、また、例えば第８図に示すように、第１ｐ
−ラー５４の間を挾んで対向するように発光素子１２と
受光素子１３を配置し、転写紙５１の厚さの変化に応じ
て第１０−ラー５４の間隙の大きさが変化して受光素子
１３に入射される光量が変化するのを検知することによ
り転写紙５１の厚さを検知して、第２０−ラー５５の駆
動手段の切替のスイッチを自動的に動作させて行なって
もよい。If the transfer paper 51 has a thickness that is difficult to bend, the transfer paper 51 with such a thickness can be easily separated from the photoreceptor drum 1 without bending the paper half. The means for bending the transfer paper 51 may be released by temporarily stopping the 20th roller 55. The means for temporarily stopping the 20th roller 55 and bending the transfer paper 51 may be released by manually operating a switch for switching the drive means of the 20th roller 55. As shown in the figure, the first p
The light-emitting element 12 and the light-receiving element 13 are arranged so as to face each other across the 10-th color 54, and the size of the gap between the 10-th color 54 changes according to the change in the thickness of the transfer paper 51, and the light-receiving element The thickness of the transfer paper 51 may be detected by detecting a change in the amount of light incident on the roller 13, and the switch for switching the driving means of the twentieth roller 55 may be automatically operated.
なお、上記感光体ドラム１と第１０−ラー５４および第
２０−ラー５５の位置関係によっては、感光体ドラム１
から転写紙５１を分離しやすくするためＫ、第１０−ラ
ー５４と第２０−ラー５ｐとの間で転写紙５１を下方へ
曲げる必要がある場合もあり、この場合には上記ガイド
部材５７はその一部が第１０−ラー５４および第２０−
ラー５５のニップ部を含む平面より下方へ突出する曲面
を有するように構成すればよい。Note that depending on the positional relationship between the photosensitive drum 1 and the 10th roller 54 and the 20th roller 55, the photosensitive drum 1
It may be necessary to bend the transfer paper 51 downward between the 10th roller 54 and the 20th roller 5p in order to make it easier to separate the transfer paper 51 from the guide member 57. Part of it is the 10th-ra 54 and the 20th-ra.
It may be configured to have a curved surface that protrudes downward from a plane including the nip portion of the roller 55.
本発明の給紙装置は、転写紙を充分に曲げることができ
、かつ、転写紙に折り曲げた跡が残るようなことがない
。The paper feeding device of the present invention can bend the transfer paper sufficiently and does not leave any bending marks on the transfer paper.
第１図は本発明の給紙装置を用いろ電子複写機の概略を
示す概略図、第２図乃至第７図は本発明の構成の要部の
作用を説明するための一部切欠正面図、並びに、第８図
は本発明の給紙装置の第１０−ラーで送られる転写紙の
厚さを検知する手段の１実施例を示す斜面図である。
１・・・感光体ドラム、５・・・給紙装置、５１・・・
転写紙、５４・・・第１０−ラー、５５・・・第２０−
ラー、５７・・・ガイド部材代理人 麓 高 明FIG. 1 is a schematic diagram showing an outline of an electronic copying machine using the paper feeding device of the present invention, and FIGS. 2 to 7 are partially cutaway front views for explaining the functions of the main parts of the configuration of the present invention. , and FIG. 8 are perspective views showing one embodiment of means for detecting the thickness of the transfer paper fed by the 10th roller of the paper feeding device of the present invention. 1... Photosensitive drum, 5... Paper feeding device, 51...
Transfer paper, 54...10th-ra, 55...20th-
Ra, 57...Guide member agent Takaaki Fumoto
Claims (2)
２０−ラーを給紙方向へ所定間隔をおいて配置し、第１
０−ラーと第２０−ラーとの間にこれらのローラーのニ
ップ部を含む平面に対してその一部が一方向へ突出した
曲面を有するガイド部材を配置し、かつ、第２０−ラー
を一時的に停止して第１０−ラーにより送られてくる転
写紙の先端部を停止させて第１０−ラーと第２０−ラ一
の間に転写紙を曲げた状態で一時的に待機させることを
特徴とする給紙装置。(1) A pair of 10th rollers and a 20th roller are arranged in the paper feeding path at a predetermined interval in the paper feeding direction, and
A guide member having a curved surface that partially protrudes in one direction with respect to a plane including the nip portion of these rollers is disposed between the 0-roller and the 20th-roller, and the 20th-roller is temporarily The leading edge of the transfer paper sent by the 10th roller is stopped, and the transfer paper is temporarily held in a bent state between the 10th roller and the 20th roller. Characteristic paper feeding device.
第２０−ラーの間に転写紙を曲げた・状態で一時的に待
機させる手段を解除可能としたことを特徴とする特許請
求の範囲第１項記載の給紙装置。(2) The method is characterized in that the means for temporarily stopping the 20th roller and temporarily holding the transfer paper in a bent state between the 10th roller and the 20th roller can be released. A paper feeding device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56110495A JPS5811963A (en) | 1981-07-15 | 1981-07-15 | Paper feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56110495A JPS5811963A (en) | 1981-07-15 | 1981-07-15 | Paper feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5811963A true JPS5811963A (en) | 1983-01-22 |
Family
ID=14537197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56110495A Pending JPS5811963A (en) | 1981-07-15 | 1981-07-15 | Paper feeding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5811963A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54160615A (en) * | 1978-06-08 | 1979-12-19 | Iseki Agricult Mach | Riding type rice transplanter |
| US5282004A (en) * | 1990-12-28 | 1994-01-25 | Hitachi, Ltd. And Hitachi Koki Co., Ltd. | Electrophotograhic apparatus and method for preventing attraction of copy sheet to photoreceptor |
-
1981
- 1981-07-15 JP JP56110495A patent/JPS5811963A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54160615A (en) * | 1978-06-08 | 1979-12-19 | Iseki Agricult Mach | Riding type rice transplanter |
| JPS5811963B2 (en) * | 1978-06-08 | 1983-03-05 | 井関農機株式会社 | Riding rice transplanter |
| US5282004A (en) * | 1990-12-28 | 1994-01-25 | Hitachi, Ltd. And Hitachi Koki Co., Ltd. | Electrophotograhic apparatus and method for preventing attraction of copy sheet to photoreceptor |
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