JP4894573B2 - Paper feeder - Google Patents

Paper feeder Download PDF

Info

Publication number
JP4894573B2
JP4894573B2 JP2007065990A JP2007065990A JP4894573B2 JP 4894573 B2 JP4894573 B2 JP 4894573B2 JP 2007065990 A JP2007065990 A JP 2007065990A JP 2007065990 A JP2007065990 A JP 2007065990A JP 4894573 B2 JP4894573 B2 JP 4894573B2
Authority
JP
Japan
Prior art keywords
opening
paper
air
shutter plate
air outlet
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.)
Expired - Fee Related
Application number
JP2007065990A
Other languages
Japanese (ja)
Other versions
JP2008222404A (en
Inventor
和教 田口
慎一 岩切
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duplo Corp
Original Assignee
Duplo Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Duplo Corp filed Critical Duplo Corp
Priority to JP2007065990A priority Critical patent/JP4894573B2/en
Publication of JP2008222404A publication Critical patent/JP2008222404A/en
Application granted granted Critical
Publication of JP4894573B2 publication Critical patent/JP4894573B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sheets, Magazines, And Separation Thereof (AREA)

Description

本発明は、給紙板上に積載された用紙束の最上層から1枚ずつ給紙する給紙装置の技術分野に属する。   The present invention belongs to the technical field of a sheet feeding device that feeds sheets one by one from the uppermost layer of a stack of sheets stacked on a sheet feeding plate.

図4は従来のこの種給紙装置の側面図である。
給紙板4上に積載された用紙束5の上方位置に吸引チャンバー6トベルト7とからなる吸着搬送手段があり、この吸引チャンバー6の下面には図示されていないエア吸引孔があり、且つ下面に沿って周回するベルト7が間隔を置いて数条懸け渡されており、ベルト7とベルト7の間に現れているエア吸引孔のエア吸引により吸い上げられた用紙はベルト7に密着して右方へ搬送され先端が給紙ローラ8に挟まれて右方へ排出される。
FIG. 4 is a side view of this conventional sheet feeding device.
There is a suction conveyance means comprising a suction chamber 6 and a belt 7 at a position above the sheet bundle 5 loaded on the sheet feeding plate 4. An air suction hole (not shown) is provided on the lower surface of the suction chamber 6, and the lower surface is provided on the lower surface. A plurality of belts 7 that circulate along the belt are suspended at intervals, and the sheet sucked up by the air suction of the air suction holes appearing between the belts 7 and 7 is in close contact with the belt 7 to the right. And the leading end is sandwiched between the paper feed rollers 8 and discharged to the right.

この用紙のエア吸引に当たっては、1枚ずつ給紙するため、吸引も1枚ずつ行われるように、用紙束5の上層部の用紙が1ずつ分離し易いように用紙の幅方向に間隔を置いて複数個配列されたエア吹き出し部14の開口部15から、用紙束5の前端最上層に近い部分にエアを吹き付けて重送が生じないようにしている。さらに吹き出しエアの一部はベルト7に吸着された用紙の先端に向けても吹き付けられるようになっている。   When air is sucked into the sheets, the sheets are fed one by one, so that the sheets in the upper layer of the sheet bundle 5 are separated one by one so that the sheets are sucked one by one. Thus, air is blown from the openings 15 of the plurality of air blowing portions 14 arranged to a portion near the uppermost layer of the front end of the sheet bundle 5 to prevent double feeding. Further, a part of the blown air is blown toward the leading edge of the paper adsorbed by the belt 7.

これは、用紙束5の前端最上層にエアを吹き付けても、それだけで用紙が全面に渡って完全に1枚1枚に分離されるわけではないので、高速給紙の場合などに上層の1枚が吸い上げられたときに、2枚目、3枚目が、上の用紙に密着するようにして吸い上げられる場合がある。それによって重送されることを防ぐために、ベルト7に吸着された用紙の先端位置に向けてもエアが吹き付けられるようにし、仮に2枚、3枚がベルト7に吸着されてもこれを振るい落とすようにしている。   This is because even if air is blown onto the uppermost layer at the front end of the sheet bundle 5, the sheet is not completely separated into one sheet over the entire surface. When the sheets are sucked up, the second and third sheets may be sucked up in close contact with the upper sheet. In order to prevent double feeding, air is blown toward the leading end position of the paper adsorbed on the belt 7, and even if two or three sheets are adsorbed on the belt 7, the air is shaken off. I am doing so.

図5は、エア吹き出し部14が3個並んだ斜視図であり右2つの構造は、開口部の両側壁16は垂直に立ち上がって途中で水平となり、再び立ち上がって垂直になっており、屋根板18は開口部15に向けて上向き傾斜となっている。
左端のエア吹き出し部の開口部19は垂直板に穴の空いた形となっている。
エア吹き出し部14の前にはシャッター板17が設けられており、シャッター板連結部20を矢印A方向に動かすことにより各開口部の開口量を連動で調整できるようになっている。
FIG. 5 is a perspective view in which three air blowing portions 14 are arranged. In the two structures on the right side, both side walls 16 of the opening portion rise vertically and become halfway, rise again and become vertical. 18 is inclined upward toward the opening 15.
The opening 19 of the air blowing part at the left end has a shape with a hole in the vertical plate.
A shutter plate 17 is provided in front of the air blowing portion 14, and the opening amount of each opening portion can be adjusted in conjunction by moving the shutter plate connecting portion 20 in the arrow A direction.

図5は開口量が大きく、図6は開口量を最小にしたときの斜視図である。
シャッター板17の開閉は、用紙の紙質によって調整する。例えば厚い用紙の場合には大きく開き、用紙が薄い場合には閉じる方向に調整するという具合である(例えば、特許文献1参照)。
特開2002−226068号公報(段落[0048]〜[0053]、[0058]、図4、図7、図8)
FIG. 5 is a perspective view when the opening amount is large, and FIG. 6 is a perspective view when the opening amount is minimized.
The opening and closing of the shutter plate 17 is adjusted according to the paper quality. For example, when the paper is thick, it is opened widely, and when the paper is thin, it is adjusted in the closing direction (for example, see Patent Document 1).
JP 2002-226068 A (paragraphs [0048] to [0053], [0058], FIG. 4, FIG. 7, FIG. 8)

以上のように、エア吹き出し口は、積載用紙束の最上位近くで積載前側面に向き合っている。このため、吸着搬送手段に吸着された用紙の先端の全部又は一部がベルト下面から下っている部分があると、この下がった部分がエア吹き出し口の垂直部分上部に引っ掛かってジャムになり易いという問題がある。
また、エア吹き出し口を開閉するシャッター板も開口面に合わせて垂直に立っているので、シャッター板に対してもエア吹き出し口同様に用紙の先端が引っ掛かり易いという問題がある。
As described above, the air outlet faces the front side surface near the top of the stack of stacked sheets. For this reason, if there is a part where all or a part of the front end of the paper adsorbed by the adsorbing and conveying means is lowered from the lower surface of the belt, the lowered part is easily caught on the upper part of the vertical part of the air outlet and is likely to jam. There's a problem.
In addition, since the shutter plate that opens and closes the air blowing port stands vertically in accordance with the opening surface, there is a problem that the leading edge of the sheet is easily caught on the shutter plate as well as the air blowing port.

本発明は、上記従来技術の問題点に鑑みて、用紙の先端が吸着搬送手段に完全に吸着されないことがあっても、用紙の先端がエア吹き出し口やシャッター板に引っ掛かってジャムを生じることがないようにした給紙装置を提供することにある。   In the present invention, in view of the above-described problems of the prior art, even if the leading edge of the paper is not completely sucked by the suction conveyance means, the leading edge of the paper may be caught by the air blowing port or the shutter plate, thereby causing a jam. It is an object of the present invention to provide a paper feeding device that does not include the above.

本発明は、上記の課題を解決するために下記の構成を有する。
本発明の第1の構成は、給紙板に積載される用紙束の上方位置に設けられ、用紙束の用紙を上からエアで吸引し吸着した用紙を給紙方向へ搬送する吸着搬送手段と、積載された用紙束の搬送方向側上部先端部分および用紙が吸着搬送手段に吸着されたときの用紙の先端が位置する部分に向けてエアを吹き付けるようにエア吹き出し口の開口面が用紙の進行方向に傾斜して用紙束の幅方向に沿って複数個設けられたエア吹き出し口と、用紙束の幅方向に移動することにより、前記複数のエア吹き出し口を連動で開閉する複数のシャッター板とを有し、各シャッター板が用紙積載方向に直立しているものと、エア吹き出し口の開口面に沿って傾斜しているものとが混在していることを特徴とする給紙装置である。
The present invention has the following configuration in order to solve the above problems.
A first configuration of the present invention is provided at an upper position of a sheet bundle stacked on a sheet feeding plate, and sucking and conveying means that sucks the sheets of the sheet bundle from above by air and conveys the sucked sheet in the sheet feeding direction. The opening surface of the air outlet is in the direction of paper travel so that air is blown toward the top end of the stack of stacked sheets in the transport direction and the section where the top of the paper is located when the paper is sucked by the suction transport means. A plurality of air outlets that are inclined in the width direction of the sheet bundle and a plurality of shutter plates that open and close the plurality of air outlets by moving in the width direction of the sheet bundle. Yes, and a sheet feeding apparatus in which each shutter plate is characterized in that to that upstanding sheet stacking direction, and those that are inclined along the opening surface of the air blowing port are mixed.

本発明の第の構成は、前記第の構成において、エア吹き出し口の開口面に沿って傾斜しているシャッター板がその閉状態のときに、吹き出し開口部を全面的に閉じるものと開口部の上方一部がなおあいているものとが混在していることを特徴とする給紙装置である。 According to a second configuration of the present invention, in the first configuration, when the shutter plate inclined along the opening surface of the air blowing port is in its closed state, the blowing opening portion is entirely closed and opened. The sheet feeding device is characterized in that a part of the upper part is still open.

本発明の第1の構成においては、エア吹き出し口の開口面が用紙の進行方向に傾斜しているので、吸着搬送手段の下面から下がった用紙の先端が開口部に接したとしてもそこで引っ掛かることはなく前進し、ジャムを起こさないという効果がある。   In the first configuration of the present invention, since the opening surface of the air outlet is inclined in the paper traveling direction, even if the leading edge of the paper descending from the lower surface of the suction conveyance means contacts the opening, it is caught there. It has the effect of moving forward and not causing jams.

また、複数のエア吹き出し口に対応する複数のシャッター板のうち一部がエア吹き出し口の傾斜開口面に沿って傾斜しているので、そのシャッター板に用紙の先端が接触してもそこで引っ掛かることなく前進し、ジャムを起こさないという効果がある。
なお、吸着搬送手段に吸着された用紙の先端の幅方向で見て用紙先端が垂れ下がる可能性のない部分に対応する位置のシャッター板は傾斜させる必要がないので、傾斜と直立が混在することとなる。
In addition, some of the plurality of shutter plates corresponding to the plurality of air outlets are inclined along the inclined opening surface of the air outlet, so that even if the leading edge of the paper comes into contact with the shutter plate, it is caught there. It has the effect of moving forward without causing jams.
Note that there is no need to incline the shutter plate at a position corresponding to a portion where the front end of the paper is not likely to sag when viewed in the width direction of the front end of the paper adsorbed by the suction conveyance means, so that inclination and upright are mixed. Become.

本発明の第の構成においては、シャッター板を連動で閉状態にしても、一部のエア吹き出し口の開口部の上方一部がなおあいているので、この部分からは吸着搬送手段の下面に吸着された用紙の先端位置へ向けてエアが吹き付けられる。
従って、用紙が薄いため用紙束前端最上層部にエアを吹き付けることが好ましくなく、シャッター板を閉状態にした状態であっても、なお、吸着搬送手段の下面に複数の用紙が吸着された場合には1枚を残して他を落下させ重送を避けることができるという効果がある。
In the second configuration of the present invention, even if the shutter plate is closed in conjunction with the shutter plate, the upper part of the opening of some of the air outlets is still open. Air is blown toward the front end position of the paper adsorbed on the paper.
Therefore, it is not preferable to blow air on the uppermost layer at the front end of the sheet bundle because the sheet is thin. Even when the shutter plate is closed, a plurality of sheets are adsorbed on the lower surface of the adsorbing and conveying means. Has the effect of avoiding double feed by leaving one piece and dropping the other.

本発明の実施においては、エア吹き出し口を開閉するシャッター板は、単に開と閉の切替えではなくエア吹き出し量を用紙の紙質や厚さに応じて調整できる開閉機構とするのが最良の形態である。
また、エア吹き出し口およびシャッター板の、用紙先端が接する部分は、用紙が滑り易い材質とするか或いは滑り易くなるようにする表面処理を施すのが最良である。
In the practice of the present invention, the shutter plate that opens and closes the air blowing port is not the simple switching between open and closed, but an opening / closing mechanism that can adjust the air blowing amount according to the paper quality and thickness of the paper. is there.
Further, the portion of the air outlet and the shutter plate that is in contact with the leading edge of the paper is best made of a material that makes the paper slippery or is subjected to a surface treatment that makes it slippery.

以下、本発明の給紙装置の実施例を図面を参照して説明する。
図1は、本発明給紙装置の実施例の側面図である。図4の従来の給紙装置と異なる点は、エア吹き出し部1、開口部2およびシャッター板3、9、10の構造が異なる点である。図2は、エア吹き出し部1、開口部2およびシャッター板3、9、10を抜き出した斜視図である。
エア吹き出し部1の開口部2はその開口面が斜め上向きとなっている。そして屋根板12が用紙束5の方に向かって上り傾斜となっている。
これにより、開口部2から吹き出されるエアは、図1における用紙束5の搬送方向前端最上層近傍および用紙がベルト7に吸着されたときの先端位置付近に向けて吹き付けられる。
シャッター板は、シャッター板3およびシャッター板10が開口部2の開口面の傾斜に合わせて折り曲げ傾斜させてあり、シャッター板9は直立となっている。これらの各シャッターはシャッター板連結部11によって連結されており、シャッター板連結部11は図1に示すようなピニオンラック13によって矢印A方向に移動させることができる。
図2が、エア吹き出し部1に対し、各シャッター板3、9、10が開の位置にある状態を示しており、図3が閉の位置にある状態を示している。
Hereinafter, an embodiment of a paper feeding device of the present invention will be described with reference to the drawings.
FIG. 1 is a side view of an embodiment of the paper feeding device of the present invention. 4 is different from the conventional paper feeder of FIG. 4 in the structure of the air blowing part 1, the opening part 2, and the shutter plates 3, 9, and 10. FIG. 2 is a perspective view of the air blowing portion 1, the opening portion 2, and the shutter plates 3, 9, and 10 extracted.
The opening 2 of the air blowing portion 1 has an opening surface obliquely upward. The roof plate 12 is inclined upward toward the sheet bundle 5.
As a result, the air blown out from the opening 2 is blown toward the vicinity of the uppermost layer at the front end of the sheet bundle 5 in FIG. 1 and the vicinity of the leading end position when the sheet is adsorbed to the belt 7.
In the shutter plate, the shutter plate 3 and the shutter plate 10 are bent and inclined in accordance with the inclination of the opening surface of the opening 2, and the shutter plate 9 is upright. Each of these shutters is connected by a shutter plate connecting portion 11, and the shutter plate connecting portion 11 can be moved in the direction of arrow A by a pinion rack 13 as shown in FIG.
FIG. 2 shows a state in which the shutter plates 3, 9, 10 are in the open position with respect to the air blowing portion 1, and FIG. 3 shows a state in which the shutter plate 3 is in the closed position.

図3では、シャッター板3はエア吹き出し部1の開口部2を全部は塞がず、上の方が一部あいている。
ここから吹き出されるエアは上向きとなり、用紙束5の方へのエアは抑制され、ベルト7に吸着された用紙の先端部分近傍にエアを吹き付けることになる。
従って、用紙束5の用紙が薄い用紙で、用紙束前端上層部分にエアを吹き付けることが好ましくなく、シャッター板を閉じた状態でもベルト7に密着した用紙の先端部分へはエアが吹き付けられるので重送を避けることができる。
In FIG. 3, the shutter plate 3 does not completely block the opening 2 of the air blowing part 1, and the upper part is open.
The air blown from here becomes upward, the air toward the sheet bundle 5 is suppressed, and the air is blown to the vicinity of the leading end portion of the sheet adsorbed by the belt 7.
Therefore, it is not preferable to blow air on the upper layer portion of the front end of the sheet bundle because the sheets of the sheet bundle 5 are thin, and even if the shutter plate is closed, air is blown to the leading end portion of the sheet that is in close contact with the belt 7 and thus heavy. You can avoid sending.

シャッター板9は直立しているので、開口部2を直接塞いではいないが、前に立ち塞がっていることで、シャッター板3ほどではないにしても、用紙束5の方へ吹き付けるエアは弱まり、斜め上向きの風量が多くなる。シャッター板10は、開口部2を完全に塞いでいるのでエアは全く吹き出されなくなる。   Since the shutter plate 9 stands upright, the opening 2 is not directly blocked, but because the shutter plate 9 is blocked in front, the air blown toward the sheet bundle 5 is weakened, even if not as much as the shutter plate 3. Increasing airflow diagonally upward. Since the shutter plate 10 completely blocks the opening 2, no air is blown out at all.

このように、開口部2の開口面を傾斜させたことにより、シャッターの形状は、種々のものが採用でき、それは、吸着搬送手段の幅や、ベルト7の間隔と吸引孔の大きさの位置関係による吸着力の分布や、取り扱う用紙の紙質や厚さに応じて種々選択することとなる。   Thus, by tilting the opening surface of the opening 2, various shutter shapes can be adopted, which are the positions of the width of the suction conveyance means, the distance between the belts 7 and the size of the suction holes. Various selections are made according to the distribution of the adsorption force depending on the relationship and the quality and thickness of the paper to be handled.

本発明給紙装置の実施例の側面図である。It is a side view of the Example of this invention paper feeder. 図1の給紙装置におけるエア吹き出し部およびシャッター板が開状態の斜視図である。FIG. 2 is a perspective view of an air blowing unit and a shutter plate in the open state in the paper feeding device of FIG. 1. 図1の給紙装置におけるエア吹き出し部およびシャッター板が閉状態の斜視図である。FIG. 2 is a perspective view of an air blowing unit and a shutter plate in a closed state in the paper feeding device of FIG. 1. 従来の給紙装置の側面図である。It is a side view of the conventional paper feeder. 図4の給紙装置のエア吹き出し部および開状態のシャッター板の斜視図である。FIG. 5 is a perspective view of an air blowing portion and an open shutter plate of the sheet feeding device of FIG. 4. 図4の給紙装置のエア吹き出し部および閉状態のシャッター板の斜視図である。FIG. 5 is a perspective view of an air blowing portion and a closed shutter plate of the sheet feeding device of FIG. 4.

符号の説明Explanation of symbols

1 エア吹き出し部
2 開口部
3 シャッター板
4 給紙板
5 用紙束
6 吸引チャンバー
7 ベルト
8 給紙ローラ
9 シャッター板
10 シャッター板
11 シャッター板連結部
12 屋根板
13 ピニオンラック
14 エア吹き出し部
15 開口部
16 側壁
17 シャッター板
18 屋根板
19 開口部
20 シャッター板連結部
DESCRIPTION OF SYMBOLS 1 Air blowing part 2 Opening part 3 Shutter board 4 Paper feeding board 5 Paper bundle 6 Suction chamber 7 Belt 8 Paper feed roller 9 Shutter board 10 Shutter board 11 Shutter board connection part 12 Roof board 13 Pinion rack 14 Air blowing part 15 Opening part 16 Side wall 17 Shutter plate 18 Roof plate 19 Opening 20 Shutter plate connecting part

Claims (2)

給紙板に積載される用紙束の上方位置に設けられ、用紙束の用紙を上からエアで吸引し吸着した用紙を給紙方向へ搬送する吸着搬送手段と、積載された用紙束の搬送方向側上部先端部分および用紙が吸着搬送手段に吸着されたときの用紙の先端が位置する部分に向けてエアを吹き付けるようにエア吹き出し口の開口面が用紙の進行方向に傾斜して用紙束の幅方向に沿って複数個設けられたエア吹き出し口と、用紙束の幅方向に移動することにより、前記複数のエア吹き出し口を連動で開閉する複数のシャッター板とを有し、各シャッター板が用紙積載方向に直立しているものと、エア吹き出し口の開口面に沿って傾斜しているものとが混在していることを特徴とする給紙装置。 A suction conveying means provided above the sheet bundle stacked on the sheet feeding plate, which sucks the sheets of the sheet bundle with air from above and sucks the sheets in the sheet feeding direction, and the conveyance direction side of the loaded sheet bundle The opening direction of the air outlet is inclined in the paper traveling direction so that air is blown toward the upper tip part and the part where the leading edge of the paper is located when the paper is sucked by the suction conveyance means. along with an air outlet provided plurality, by moving in the width direction of the sheet bundle, have a plurality of shutter plates for opening and closing the plurality of air outlet in conjunction, each shutter plate is paper loading A sheet feeding device characterized by a mixture of ones standing upright in the direction and ones inclined along the opening surface of the air outlet . エア吹き出し口の開口面に沿って傾斜しているシャッター板がその閉状態のときに、エア吹き出し口の開口部を全面的に閉じるものと開口部の上方一部がなおあいているものとが混在していることを特徴とする請求項1記載の給紙装置。 When the shutter plate that is inclined along the opening surface of the air outlet is in its closed state, the shutter plate that completely closes the opening of the air outlet and the upper part of the opening are still open The sheet feeding device according to claim 1, wherein the sheet feeding device is mixed.
JP2007065990A 2007-03-15 2007-03-15 Paper feeder Expired - Fee Related JP4894573B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007065990A JP4894573B2 (en) 2007-03-15 2007-03-15 Paper feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007065990A JP4894573B2 (en) 2007-03-15 2007-03-15 Paper feeder

Publications (2)

Publication Number Publication Date
JP2008222404A JP2008222404A (en) 2008-09-25
JP4894573B2 true JP4894573B2 (en) 2012-03-14

Family

ID=39841462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007065990A Expired - Fee Related JP4894573B2 (en) 2007-03-15 2007-03-15 Paper feeder

Country Status (1)

Country Link
JP (1) JP4894573B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6663591B2 (en) 2016-05-10 2020-03-13 株式会社リコー Paper feeder and image forming apparatus
JP7090435B2 (en) * 2018-03-14 2022-06-24 理想科学工業株式会社 Paper feed device
JP2022180000A (en) 2021-05-24 2022-12-06 富士フイルムビジネスイノベーション株式会社 Feeding device and usage method for sheet-like media
JP2022179997A (en) 2021-05-24 2022-12-06 富士フイルムビジネスイノベーション株式会社 Feeding device and usage device for sheet-like media

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001031272A (en) * 1999-07-23 2001-02-06 Kyocera Mita Corp Paper feeder
JP3577447B2 (en) * 2000-06-26 2004-10-13 京セラミタ株式会社 Paper feeder
JP3908910B2 (en) * 2001-01-26 2007-04-25 株式会社デュプロ Paper feeder

Also Published As

Publication number Publication date
JP2008222404A (en) 2008-09-25

Similar Documents

Publication Publication Date Title
JP5495024B2 (en) Paper feeding device and image forming apparatus
JP6098353B2 (en) Paper feeding device and image forming apparatus
JP3592275B2 (en) Paper feeder
JP4894573B2 (en) Paper feeder
US20180346265A1 (en) Sheet feeding device and image forming system
JP4495637B2 (en) Paper feeding device and electrophotographic apparatus provided with the same
JP7204284B2 (en) Media feeder
US11565898B2 (en) Sheet accommodating apparatus, image forming system, and extension unit
JP2007031070A (en) Suction unit and sheet feeding device
JP5302040B2 (en) Paper receiving device and printing machine
JP7135682B2 (en) Feeding device, image forming device and image forming system
CN212831714U (en) Sheet feeding device
JP5208663B2 (en) Paper feeder for image forming apparatus
JP4130618B2 (en) Paper feeder for image forming apparatus
JP4680143B2 (en) Discharge sorter for image forming apparatus
JP7184550B2 (en) Paper feeder
JP2001039564A (en) Paper feeding device
JP6725597B2 (en) Sheet stacking device
US10781064B2 (en) Method for applying air to sheets stacked on sheet stacking apparatus
JP4766684B2 (en) Paper transport device
JP6185791B2 (en) Paper feeder
JP2022047244A (en) Feeding device and use device of sheet-like medium
JP2010070376A (en) Paper feeding method and paper feeding device
JP2023048012A (en) Paper feeder and image formation device
JP4549238B2 (en) Paper feeder

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100310

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101224

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110512

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110926

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110930

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111114

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20111208

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20111212

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150106

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150106

Year of fee payment: 3

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313532

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150106

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees