JPH07144759A - Paper feeder - Google Patents
Paper feederInfo
- Publication number
- JPH07144759A JPH07144759A JP5316076A JP31607693A JPH07144759A JP H07144759 A JPH07144759 A JP H07144759A JP 5316076 A JP5316076 A JP 5316076A JP 31607693 A JP31607693 A JP 31607693A JP H07144759 A JPH07144759 A JP H07144759A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- filler
- paper feeding
- rotating member
- feeding tray
- 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
- Controlling Sheets Or Webs (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は給紙装置に関するもので
あり、更に詳しくは、電子写真複写機、ファクシミリ、
プリンタ、印刷機等の画像形成装置に用いられる給紙装
置において、給紙トレイ内の底板上に積載される多種類
の用紙の大きさや搬送方向等の用紙情報の識別を容易化
したものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet feeding device, and more specifically, an electrophotographic copying machine, a facsimile,
The present invention relates to a sheet feeding device used in an image forming apparatus such as a printer or a printing machine, which facilitates identification of sheet information such as sizes and conveyance directions of various types of sheets stacked on a bottom plate in a sheet feeding tray.
【０００２】[0002]
【従来の技術】電子写真複写機、ファクシミリ、プリン
タ、印刷機等の画像形成装置において、画像形成部に記
録用紙を供給するために用いられる給紙装置にあって
は、給紙装置を構成する給紙トレイ内に収納される用紙
の大きさや搬送方向等の用紙情報の標示と検出は個別に
おこなわれていた。例えば、従来、用紙のサイズ標示は
給紙トレイの外面に設けた標示部にて行われ、また、給
紙トレイに収納された用紙のサイズ検知は給紙トレイの
奥部に設けた識別部材を機器側に設けた検知手段により
検知することにより行われていた。従って、給紙トレイ
内に積載されていた用紙のサイズや搬送方向を変更する
場合には、用紙を入れ替えて用紙規制板の位置を変えた
後で、更に、用紙情報の標示部の変更作業と上記識別部
材の変更作業等の煩わしい作業が必要であるという不具
合があった。そこで、給紙トレイの段数を増すことによ
り、用紙の入れ替え等の煩雑な交換作業を不要とする試
みも行われているが、給紙トレイの段数を増すと、装置
がコスト高になるだけでなく大型化する等の不具合が生
じていた。2. Description of the Related Art In an image forming apparatus such as an electrophotographic copying machine, a facsimile, a printer, a printing machine, etc., a sheet feeding apparatus used to feed a recording sheet to an image forming section constitutes a sheet feeding apparatus. Labeling and detection of paper information such as the size of the paper stored in the paper feed tray and the transport direction have been performed individually. For example, conventionally, the size indication of the paper is performed by the indication unit provided on the outer surface of the paper feed tray, and the size detection of the paper stored in the paper feed tray is performed by the identification member provided at the back of the paper feed tray. The detection is performed by the detection means provided on the device side. Therefore, when changing the size and conveyance direction of the paper stacked in the paper feed tray, after replacing the paper and changing the position of the paper regulating plate, the work of changing the marking portion of the paper information is further performed. There has been a problem that a troublesome work such as a work for changing the identification member is required. Therefore, attempts have been made to increase the number of paper feed trays to eliminate the need for complicated replacement work such as paper replacement, but increasing the number of paper feed trays only increases the cost of the device. There was a problem such as an increase in size.
【０００３】[0003]
【発明が解決しようとする課題】前述した従来の給紙装
置において、給紙トレイ内に積載されていた用紙のサイ
ズや搬送方向を変更する際には、用紙を入れ替えて用紙
規制板の位置を変えた後に、更に、用紙情報の標示部の
変更作業と識別部材の変更作業等の煩わしい作業が必要
であるという問題点があった。In the above-mentioned conventional paper feeding device, when changing the size or the conveying direction of the paper stacked in the paper feeding tray, the paper is replaced and the position of the paper regulating plate is changed. After the change, there is a problem that a complicated work such as a change work of the marking portion of the paper information and a change work of the identification member is required.
【０００４】[0004]
【発明の目的】そこで本発明は、このような問題点を解
決しようとするものである。すなわち、本発明は、給紙
トレイ内に積載されていた用紙の大きさや搬送方向等を
変更する際の用紙の入れ替え等の煩わしい作業を軽減
し、更にコスト安で小型化した給紙装置を提供すること
を目的とする。SUMMARY OF THE INVENTION Therefore, the present invention is intended to solve such a problem. That is, the present invention provides a paper feeding device that reduces the cost and size by reducing the troublesome work such as the replacement of the paper when changing the size of the paper stacked in the paper feeding tray or the conveying direction. The purpose is to do.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、サイズや搬送方向等の異なる用紙を収納
し得る給紙トレイを備えた給紙装置において、該給紙ト
レイは前部に用紙情報の標示と検出を同時におこなうた
めの回転部材を有し、該給紙トレイが画像形成装置内に
装着されたときに該回転部材により押圧されて作動する
検知手段が設けられたこと、上記回転部材は複数の組に
区分けされたフィラーを有し、該フィラーは上記検知手
段を押圧して作動させるための配列を有し、一つの区画
内のフィラーを隣接する他の区画内のフィラーと組み合
わせることによって得られるパターンによって上記検知
手段を作動させること、軸心を中心として回転自在に支
持された上記回転部材がその片面の外縁部に配置したフ
ィラーにより、上記検知手段を押圧した時に、該回転部
材の傾倒を防止する保持部材を設けたことを特徴として
いる。In order to achieve the above object, the present invention is a paper feeding apparatus provided with a paper feeding tray capable of accommodating papers of different sizes, conveying directions, etc. A rotation member for simultaneously displaying and detecting the sheet information in the unit, and provided with a detection unit that is activated by being pressed by the rotation member when the paper feed tray is mounted in the image forming apparatus. , The rotating member has a filler divided into a plurality of sets, and the filler has an array for pressing and activating the detecting means, and the filler in one compartment is adjacent to the filler in another compartment. By operating the detection means according to the pattern obtained by combining with the filler, the rotating member rotatably supported about the axis is arranged on the outer edge of one side of the rotating member, When pressed detecting means, it is characterized in that a holding member for preventing the tilting of the rotating member.
【０００６】[0006]
【作用】上記のように構成された給紙装置は、給紙トレ
イの引き出し側の手前に設けられた回転部材によって用
紙情報の標示と検出を同時におこなうようにして、給紙
トレイ内に積載されていた用紙の大きさや搬送方向等を
変更する際の用紙の入れ替え後の煩わしい作業を軽減
し、更にコスト安で小型化した給紙装置を提供すること
ができるようにする。The sheet feeding device configured as described above is loaded in the sheet feeding tray such that the rotation member provided in front of the sheet feeding tray pulling out side simultaneously indicates and detects the sheet information. (EN) It is possible to reduce the troublesome work after the replacement of the paper when changing the size of the paper, the transport direction, etc., and to provide the paper feed device that is more inexpensive and downsized.
【０００７】[0007]
【実施例】次に、本発明の実施例について図面を参照し
て説明する。図１及び図２は本発明の給紙装置の引出し
状態を示す外観斜視図及び側部断面図であり、図１と図
２において、用紙情報の標示と検出を同時におこなうた
めの回転部材１を前端内部に設けた給紙トレイ４は、画
像形成装置本体７の前面に設けた収納用開口７ａ内に着
脱自在に収納され、開口７ａ内底部のレール６に支持さ
れて矢印Ａ方向に引き出せるようになっている。このレ
ール６は、例えば開口７ａの内底部に内外方向へ進退可
能に支持され、トレイ４の引出し時にはトレイとともに
所定距離外部にスライド移動して引出し状態にあるトレ
イを安定して支持し、トレイの収納時にはトレイととも
に開口内部に戻るように構成する。この実施例では上記
回転部材により、用紙情報の標示機能と検出機能を同時
に兼ねさせるようにした構成が特徴的である。Embodiments of the present invention will now be described with reference to the drawings. 1 and 2 are an external perspective view and a side sectional view showing a drawn-out state of a paper feeding device of the present invention. In FIGS. 1 and 2, a rotary member 1 for simultaneously performing marking and detection of paper information is shown. The paper feed tray 4 provided inside the front end is detachably housed in a housing opening 7a provided in the front surface of the image forming apparatus main body 7, and is supported by a rail 6 at the bottom of the opening 7a so that it can be pulled out in the arrow A direction. It has become. The rail 6 is supported, for example, at the inner bottom portion of the opening 7a so as to be able to move forward and backward, and when the tray 4 is pulled out, it slides outward together with the tray for a predetermined distance to stably support the tray in the pulled out state. It is configured to return to the inside of the opening together with the tray when stored. A characteristic of this embodiment is that the rotating member has a function of displaying the sheet information and a function of detecting the sheet information at the same time.
【０００８】上記給紙トレイ４内に収納される用紙を大
きさや搬送方向等の異なる他の用紙９と入れ替える際に
は、画像形成装置本体７から上記給紙トレイ４を引き出
し、新たに収納しようとする用紙９の大きさや搬送方向
等の条件に合わせて規制板８ａを図示の矢印Ｂ方向に移
動し、又は規制板８ｂを図示の矢印Ｃ方向に移動するこ
とにより用紙９を給紙トレイ４の積載面４ａ上にセット
する。When replacing the paper stored in the paper feed tray 4 with another paper 9 having a different size or transport direction, pull out the paper feed tray 4 from the image forming apparatus main body 7 and store the paper newly. The regulation plate 8a is moved in the direction of arrow B shown in the drawing or the regulation plate 8b is moved in the direction of arrow C shown in accordance with the conditions such as the size of the paper 9 and the conveying direction. It is set on the loading surface 4a.
【０００９】セット完了後に、給紙トレイ４を画像形成
装置本体７に対して矢印Ａ方向と逆方向のＤ方向に押し
込めば、画像形成の動作開始によって、給紙トレイ４内
に積載された最上用紙９上に設けられた給紙装置０を構
成する図示しないピックアップコロと分離コロ等によっ
て、最上用紙が１枚づつ画像形成部に給紙搬送されて画
像形成がおこなわれるようになっている。After the setting is completed, if the paper feed tray 4 is pushed into the image forming apparatus main body 7 in the direction D opposite to the arrow A direction, the image forming operation starts, and the uppermost paper loaded in the paper feed tray 4 is loaded. An unillustrated pickup roller, a separation roller, and the like, which constitute the sheet feeding device 0 provided on the sheet 9, feed the uppermost sheets one by one to the image forming unit to form an image.
【００１０】上記給紙トレイ４を画像形成装置本体７に
装着した状態で、給紙トレイ４内に収納された用紙９の
大きさや搬送方向等の情報を記載した回転部材１の標示
面２ａ（外周面と表面外縁部にある）が標示手段２の窓
２ｂから判読可能に標示され、且つ、画像形成装置本体
７の制御部７ａは、回転部材１に植立されたフィラー１
ａにより作動する検知手段３のスイッチ３ａからの用紙
情報に関する検知信号を、ハーネス３ｂを介して伝達を
受ける。従って、記給紙トレイ４内に積載されていた用
紙９のサイズや搬送方向等を変更する際の用紙１の入れ
替え後の、煩わしい作業が軽減された給紙装置を提供す
ることができる。With the paper feed tray 4 mounted on the main body 7 of the image forming apparatus, the marking surface 2a (of the rotary member 1 indicating the size of the paper 9 stored in the paper feed tray 4 and the conveying direction is described. (On the outer peripheral surface and the outer edge of the surface) are readable marked through the window 2b of the marking means 2, and the control unit 7a of the image forming apparatus main body 7 includes the filler 1 planted on the rotating member 1.
The detection signal regarding the paper information from the switch 3a of the detection means 3 which is operated by a is transmitted via the harness 3b. Therefore, it is possible to provide the paper feeding device in which the troublesome work is reduced after the replacement of the papers 1 when changing the size, the conveying direction, etc. of the papers 9 stacked in the paper feed tray 4.
【００１１】図３は検知手段の構成例を示す斜視図であ
り、画像形成装置本体７に固定された上記検知手段３
は、プッシュ型のスイッチ３ａが複数個（図示の場合は
４個）直列に並べられ、これらは回転部材１に設けられ
たフィラー１ａによって選択的に押圧されるようになっ
ていて、上記ハーネス３ｂを介して画像形成装置本体７
の制御部７ａに接続されている。図２で鎖線で示したト
レイの収納状態は、検知手段３が回転部材のフィラー１
ａによりオンされている状態を示している。FIG. 3 is a perspective view showing an example of the structure of the detecting means, and the detecting means 3 fixed to the main body 7 of the image forming apparatus.
Includes a plurality of push-type switches 3a (four in the illustrated case) arranged in series, and these are selectively pressed by the filler 1a provided on the rotating member 1. Image forming apparatus main body 7
Is connected to the control unit 7a. In the storage state of the tray shown by the chain line in FIG.
The state of being turned on by a is shown.
【００１２】図４及び図５は回転部材の構成を示す表面
斜視図及び裏面斜視図であり、回転部材１は、略円筒状
の形状を有し、その外周面及び表面は標示面２ａとなっ
ており、円筒の軸心を支点１ｃとして等間隔に仕切った
標示面２ａには、用紙９の大きさの種類や搬送方向等の
情報が、標示手段２の窓２ｂから判読可能に標示されて
いる。例えば、標示面２ａに用紙１の情報として、Ａ３
縦・Ａ４縦・Ｂ４縦・Ｂ５縦・ＬＴ縦、Ａ４横・Ａ５横
・Ｂ５横・ＬＴ横等が標示され、標示面２ａが給紙トレ
イ４の外部から標示手段２の窓２ｂを介して視認可能と
なっている。FIG. 4 and FIG. 5 are a front perspective view and a rear perspective view showing the structure of the rotary member. The rotary member 1 has a substantially cylindrical shape, and its outer peripheral surface and surface serve as the marking surface 2a. Information such as the size of the paper 9 and the conveying direction is readable on the marking surface 2a which is partitioned at equal intervals by using the axis of the cylinder as the fulcrum 1c so as to be readable from the window 2b of the marking means 2. There is. For example, as the information of the sheet 1 on the marking surface 2a, A3
Vertical, A4 vertical, B4 vertical, B5 vertical, LT vertical, A4 horizontal, A5 horizontal, B5 horizontal, LT horizontal, etc. are marked, and the marking surface 2a is from outside the paper feed tray 4 through the window 2b of the marking means 2. It is visible.
【００１３】更に、上記回転部材１の裏面１ｂには外縁
部に沿って複数のフィラー１ａが所要の配置で突設さ
れ、この回転部材１を画像形成装置本体７にセットした
際には、いずれか１又は複数のフィラー１ａが検知手段
３の上記スイッチ３ａを押圧することによって、用紙９
の大きさの種類や搬送方向等の用紙９の情報が検知でき
るようになっている。Further, a plurality of fillers 1a are provided on the back surface 1b of the rotary member 1 along the outer edge portion in a required arrangement, and when the rotary member 1 is set on the image forming apparatus main body 7, it will be The one or a plurality of fillers 1a presses the switch 3a of the detecting means 3 so that the paper 9
Information of the paper 9 such as the size type and the conveyance direction can be detected.
【００１４】図６及び図７は上記フィラーの配置例を示
す図及び図表であり、例えば、最低４個のスイッチ３ａ
をフィラーによりＯＮすることによる異なるパターンを
９パターン作る為には、フィラー１ａは最低１４個必要
である。即ち、図７の図表中、１〜１５までの１５パタ
ーンのうち、１〜９までの９パターンを得る為には、合
計１４個のフィラーが必要なことが明らかである。この
１４個のフィラーの配置を、例えば図６に示したような
配置とすれば、９パターンのスイッチオン状態を確保す
ることができる。FIGS. 6 and 7 are diagrams and tables showing examples of arrangement of the above fillers, for example, at least four switches 3a.
In order to make 9 different patterns by turning ON with the filler, at least 14 fillers 1a are required. That is, it is apparent that a total of 14 fillers are required to obtain 9 patterns 1 to 9 out of 15 patterns 1 to 15 in the diagram of FIG. 7. If the 14 fillers are arranged as shown in FIG. 6, 9 patterns of switch-on states can be secured.
【００１５】図８はフィラーの配置に関する他の実施例
を示しており、この実施例では９区画に仕切られた標示
面２ａに突設したフィラーを夫々独立別個の扱いとせず
に、隣接する他の区画内のフィラーと組み合わせ使用す
ることにより、９パターンを得るようにしている。この
為、この実施例により、例えば、最低４個の上記スイッ
チ３ａにより９パターンを作るためには、図示のように
フィラー１ａは最低１０個あれば充分である。尚、用紙
９の情報の検知と同時に上記給紙トレイ４のセット、又
は未セットを検知する為、セット時は必ず、少なくとも
１個のフィラー１ａが上記スイッチ３ａを押圧するよう
になっている。従って、この実施例では、回転部材１の
直径を小さくすることができるので、コスト安で小型化
した給紙装置を提供することができる。FIG. 8 shows another embodiment relating to the arrangement of the fillers. In this embodiment, the fillers projecting from the marking surface 2a divided into 9 sections are not treated individually but separately and are not adjacent to each other. 9 patterns are obtained by using in combination with the filler in the compartment. Therefore, according to this embodiment, for example, in order to form 9 patterns with at least 4 switches 3a, at least 10 fillers 1a are sufficient as shown in the drawing. Incidentally, at the same time when the information of the paper 9 is detected, the setting or non-setting of the paper feed tray 4 is detected, so that at least one filler 1a always presses the switch 3a at the time of setting. Therefore, in this embodiment, since the diameter of the rotary member 1 can be reduced, it is possible to provide a paper feeder which is inexpensive and miniaturized.
【００１６】図９は回転部材の支持構造の一例を示す断
面図であり、検知手段３としてのスイッチ３ａは、誤動
作を防止するために、１００ｇｆ程度の強い力で押圧さ
れたときにオンするように構成されている。従って、２
個のフィラーが２個のスイッチ３ａを同時にオンさせる
為には倍の２００ｇｆ程度で押圧される必要がある。更
に、３個のスイッチ３ａをオンさせる為には３倍の３０
０ｇｆ程度で押圧される必要がある。従って、回転部材
１は、押圧されるスイッチ３ａ数の増加等により、押圧
力が大きくなると、図示のように傾倒する。このように
回転部材１の保持を支点１ｃだけに依存している限り、
外力としてスイッチ３ａによる動作力が外周から加わっ
た時に、回転中心の隙間や撓みにより図示の矢印Ｅ方向
に傾き、用紙９の情報の標示と検知に支障が発生するお
それがある。FIG. 9 is a sectional view showing an example of the support structure of the rotating member. The switch 3a as the detecting means 3 is turned on when pressed with a strong force of about 100 gf in order to prevent malfunction. Is configured. Therefore, 2
In order to turn on the two switches 3a at the same time, one filler needs to be pressed at about 200 gf, which is twice as much. Furthermore, in order to turn on the three switches 3a, three times 30
It needs to be pressed at about 0 gf. Therefore, when the pressing force increases due to an increase in the number of pressed switches 3a or the like, the rotating member 1 tilts as illustrated. Thus, as long as the holding of the rotating member 1 depends only on the fulcrum 1c,
When an operating force by the switch 3a is applied as an external force from the outer periphery, there is a risk that the gap or rotation of the center of rotation may cause tilting in the direction of arrow E in the drawing, which may interfere with the labeling and detection of information on the paper 9.
【００１７】図１０はこのような不具合を解消する為の
構成例であり、図示の様に回転部材１のフィラー１ａの
反対側にフィラー１ａと対面するように、力受け用の保
持部材５のリブ５ａを突設してあるから、給紙トレイ４
を画像形成装置本体７に装着した際は、上記回転部材１
はスイッチ３ａの押圧力によって、傾斜することなく規
定の位置に正確に固定されるので、用紙９の情報の標示
と検知に支障が発生するおそれは無い。又、上記給紙ト
レイ４を画像形成装置本体７から引き出した際に、回転
部材１が保持部材５のリブ５ａと非接触となる様に予め
寸法設定しておけば、回転部材１はリブ５ａから解放さ
れ負荷が加わらないから回転操作性は良好な状態に保た
れる。FIG. 10 shows a structural example for eliminating such a problem. As shown in the figure, the holding member 5 for receiving force is provided on the opposite side of the filler 1a of the rotary member 1 so as to face the filler 1a. Since the rib 5a is provided so as to project, the paper feed tray 4
When the image forming apparatus main body 7 is attached to the rotating member 1
Is accurately fixed to a prescribed position without being tilted by the pressing force of the switch 3a, so that there is no risk of hindering the labeling and detection of information on the paper 9. If the rotary member 1 is dimensioned in advance so that the rotary member 1 is not in contact with the rib 5a of the holding member 5 when the paper feed tray 4 is pulled out from the image forming apparatus main body 7, the rotary member 1 has the rib 5a. Since the load is not applied and the load is not applied, the rotational operability is kept in a good state.
【００１８】[0018]
【発明の効果】本発明は、以上説明したように構成され
ているので、給紙トレイの引き出し側の手前に設けられ
た回転部材によって用紙情報の標示と検出を同時におこ
なうようにしたので、給紙トレイ内に積載されていた用
紙の大きさや搬送方向等を変更する際の用紙の入れ替え
後の煩わしい作業を軽減し、更にコスト安で小型化した
給紙装置を提供することができるようになった。Since the present invention is constructed as described above, the rotary member provided on the front side of the drawer side of the paper feed tray simultaneously performs the display and detection of the paper information. It becomes possible to provide a paper feeder which is less expensive and more compact, by reducing the troublesome work after changing the paper when changing the size of the paper stacked in the paper tray or the conveying direction. It was
【図１】本発明の一実施例の給紙装置の構成を示す斜視
図。FIG. 1 is a perspective view showing a configuration of a paper feeding device according to an embodiment of the present invention.
【図２】図１の給紙装置の側部縦断面図。FIG. 2 is a side longitudinal sectional view of the paper feeding device of FIG.
【図３】スイッチ部の一例の構成説明図。FIG. 3 is a structural explanatory view of an example of a switch unit.
【図４】回転部材の表面側斜視図。FIG. 4 is a front perspective view of a rotating member.
【図５】回転部材の裏面側斜視図。FIG. 5 is a rear perspective view of the rotating member.
【図６】フィラーの配置例を示す図。FIG. 6 is a view showing an arrangement example of fillers.
【図７】図６における配置を更に詳しく説明する説明図
である。FIG. 7 is an explanatory diagram for explaining the arrangement in FIG. 6 in more detail.
【図８】フィラーの他の配置例を示す図。FIG. 8 is a view showing another arrangement example of fillers.
【図９】回転部材の組付け例を示す断面図。FIG. 9 is a sectional view showing an example of assembling a rotating member.
【図１０】図９の組付け状態の欠点を解消するための例
を示す断面図。FIG. 10 is a cross-sectional view showing an example for solving the defect of the assembled state of FIG.
０・・・給紙装置、１・・・回転部材、１ａ・・・フィ
ラー、１ｂ・・・裏面、１ｃ・・・支点、２・・・標示
手段、２ａ・・・標示面、２ｂ・・・窓、３・・・検知
手段、３ａ・・・スゥイッチ、３ｂ・・・ハーネス、４
・・・給紙トレイ、４ａ・・・積載面、５・・・保持部
材、５ａ・・・リブ、６・・・レール、７・・・本体、
７ａ・・・制御部、８・・・規制板、８ａ・・・規制
板、８ｂ・・・規制板、９・・・用紙。0 ... Paper feeding device, 1 ... Rotating member, 1a ... Filler, 1b ... Back surface, 1c ... Support point, 2 ... Marking means, 2a ... Marking surface, 2b ...・ Window, 3 ... Detection means, 3a ... Switch, 3b ... Harness, 4
... Paper feed tray, 4a ... Stacking surface, 5 ... Holding member, 5a ... Rib, 6 ... Rail, 7 ... Main body,
7a ... control part, 8 ... regulation plate, 8a ... regulation plate, 8b ... regulation plate, 9 ... sheet.
Claims (3)
し得る給紙トレイを備えた給紙装置において、該給紙ト
レイは前部に用紙情報の標示と検出を同時に行うための
回転部材を有し、該給紙トレイが画像形成装置内に装着
されたときに該回転部材により押圧されて作動する検知
手段が設けられていることを特徴とする給紙装置。1. A paper feeding apparatus having a paper feeding tray capable of accommodating papers of different sizes, conveyance directions, etc., wherein the paper feeding tray has a rotary member for indicating and detecting paper information at the same time at a front portion thereof. A sheet feeding apparatus having a detecting unit that is activated by being pressed by the rotating member when the sheet feeding tray is mounted in the image forming apparatus.
フィラーを有し、該フィラーは上記検知手段を押圧して
作動させるための配列を有し、一つの区画内のフィラー
を隣接する他の区画内のフィラーと組み合わせることに
よって得られるパターンによって上記検知手段を作動さ
せることを特徴とする請求項１記載の給紙装置。2. The rotating member has a filler divided into a plurality of sets, the filler having an array for pressing the detecting means to operate, and the fillers in one compartment are adjacent to each other. 2. The paper feeding device according to claim 1, wherein the detecting means is operated by a pattern obtained by combining the filler in the compartment of the.
上記回転部材がその片面の外縁部に配置したフィラーに
より、上記検知手段を押圧した時に、該回転部材の傾倒
を防止する保持部材を設けたことを特徴とする請求項１
又は２記載の給紙装置。3. A holding member for preventing the rotating member from tilting when the detecting member is pressed by a filler arranged on an outer edge portion of one surface of the rotating member rotatably supported about an axis. It is provided, The claim 1 characterized by the above-mentioned.
Alternatively, the sheet feeding device described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5316076A JP2896299B2 (en) | 1993-11-22 | 1993-11-22 | Paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5316076A JP2896299B2 (en) | 1993-11-22 | 1993-11-22 | Paper feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07144759A true JPH07144759A (en) | 1995-06-06 |
| JP2896299B2 JP2896299B2 (en) | 1999-05-31 |
Family
ID=18072993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5316076A Expired - Lifetime JP2896299B2 (en) | 1993-11-22 | 1993-11-22 | Paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2896299B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0923003A3 (en) * | 1997-12-12 | 2000-07-12 | Samsung Electronics Co., Ltd. | Display of size of paper stored in printer paper tray |
| EP3023371A3 (en) * | 2014-10-02 | 2016-10-12 | Xerox Corporation | Paper tray size sensing mechanism |
-
1993
- 1993-11-22 JP JP5316076A patent/JP2896299B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0923003A3 (en) * | 1997-12-12 | 2000-07-12 | Samsung Electronics Co., Ltd. | Display of size of paper stored in printer paper tray |
| EP3023371A3 (en) * | 2014-10-02 | 2016-10-12 | Xerox Corporation | Paper tray size sensing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2896299B2 (en) | 1999-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5333852A (en) | Auto paper size sensing mechanism for an adjustable cassette | |
| US6254085B1 (en) | Paper feeding apparatus for printing device | |
| US4569608A (en) | Printing apparatus with automatically interchangeable ribbon cartridges | |
| US7584950B2 (en) | Image forming apparatus and sheet feeding cassette | |
| EP1826162B1 (en) | Sheet tray device and image forming apparatus having the sheet tray device | |
| JP2005041697A (en) | Paper feeder | |
| EP2952460B1 (en) | Sheet processing device and image forming apparatus including the same | |
| US7543809B2 (en) | Sheet tray device and image forming apparatus having the sheet tray device | |
| US6921217B2 (en) | Gap adjusting device, recording apparatus and liquid ejection apparatus | |
| US6252683B1 (en) | Video printer | |
| JP6842058B2 (en) | Recording device | |
| JPH07144759A (en) | Paper feeder | |
| JP4640100B2 (en) | Sheet size detection apparatus and image forming apparatus | |
| JP2017165575A (en) | Sheet feeder and tray for sheet feeder | |
| JP2007217121A (en) | Sheet feeding device and image forming device | |
| JPH0237790Y2 (en) | ||
| JP3549348B2 (en) | Paper tray | |
| JP2002321833A (en) | Paper sheet size detection device | |
| JPH01256428A (en) | Sheet loading cassette | |
| JP4240024B2 (en) | Paper feeder | |
| JPH05139557A (en) | Paper feeding device for image recording device | |
| JP2001261167A (en) | Paper feeding device | |
| JP2022175786A (en) | Image forming apparatus | |
| JPH04292334A (en) | Universal sheet feeding cassette | |
| JP2002154690A (en) | Automatic paper feeder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090305 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100305 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110305 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120305 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130305 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140305 Year of fee payment: 15 |
|
| EXPY | Cancellation because of completion of term |