JPH0761609A - Automatic paper feeding device - Google Patents
Automatic paper feeding deviceInfo
- Publication number
- JPH0761609A JPH0761609A JP23591393A JP23591393A JPH0761609A JP H0761609 A JPH0761609 A JP H0761609A JP 23591393 A JP23591393 A JP 23591393A JP 23591393 A JP23591393 A JP 23591393A JP H0761609 A JPH0761609 A JP H0761609A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- paper feed
- feeding
- automatic
- 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
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、プリンタの給紙装置に
関し、特に使用する紙の種類が限定されないプリンタお
よび限定された複数の紙、例えば昇華用の印画紙に対応
したプリンタ等の自動給紙装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feeding device for a printer, and more particularly to a printer in which the type of paper to be used is not limited and a limited plurality of papers, for example, automatic feeding for printers corresponding to sublimation printing paper. Regarding paper equipment.
【０００２】[0002]
【従来の技術】従来の自動給紙装置としては図５に示す
ものがある。これを同図に基づいて説明すると、１は上
面が開口した給紙ケース、７は給紙圧ばね５によって上
方に押し上げられ紙３が載置されたホッパ、８はホッパ
７が押し上げられることにより紙３が押し付けられる給
紙ローラ、１ｂは給紙ケース１の前部両端に設けられた
一対の分離爪、１０は印画部であり、給紙ローラ８が回
転すると、紙３は分離爪１ｂにより１枚だけ分離され、
印画部１０に送られる。2. Description of the Related Art A conventional automatic sheet feeder is shown in FIG. This will be described with reference to the same drawing. 1 is a paper feed case with an open upper surface, 7 is a hopper on which the paper feed pressure spring 5 pushes the paper 3 upward, and 8 indicates that the hopper 7 is pushed up. A paper feed roller against which the paper 3 is pressed, 1b is a pair of separation claws provided at both ends of the front of the paper feed case 1, and 10 is a printing unit. When the paper feed roller 8 rotates, the paper 3 is separated by the separation claw 1b. Only one is separated,
It is sent to the printing unit 10.
【０００３】また、給紙ローラでの給紙圧を可変調整す
るものとして、特開昭５６−１４５０４１号公報に開示
されたものがある。これは、給紙圧を与えるばねの強さ
を手動により調整可能とし、紙質に合わせた給紙厚が得
られるようにしたものである。Further, as a means for variably adjusting the paper feed pressure at the paper feed roller, there is one disclosed in Japanese Patent Laid-Open No. 56-145041. This is to make it possible to manually adjust the strength of the spring that applies the paper feed pressure, and to obtain the paper feed thickness that matches the paper quality.
【０００４】[0004]
【発明が解決しようとする課題】上述した従来の自動給
紙装置のうち前者のものは、単に給紙圧ばね５により給
紙圧を付与している構造であるため、紙の種類が異なり
給紙圧が異なる紙を給紙する場合には手差し給紙とな
り、自動給紙ができないといった不都合が生じていた。
また、後者のものでは、紙の種類により給紙圧の設定を
変える必要があり、設定可変操作が煩わしいといった欠
点があった。したがって、本発明は上記した従来の不都
合あるいは欠点に鑑みてなされたものであり、その目的
とするところは、給紙圧の異なる紙に対して自動的に給
紙圧を変えられて１台のプリンタで複数の異なる種類の
紙に対応可能な自動給紙装置を提供することにある。The former one of the above-mentioned conventional automatic sheet feeders has a structure in which the sheet feeding pressure is simply applied by the sheet feeding pressure spring 5, and therefore the type of sheet is different. When papers with different paper pressures are fed, the papers are fed manually, which causes a problem that automatic paper feeding cannot be performed.
In the latter case, it is necessary to change the setting of the paper feeding pressure depending on the type of paper, and there is a drawback that the setting changing operation is troublesome. Therefore, the present invention has been made in view of the above-mentioned conventional inconveniences or drawbacks, and an object of the present invention is to automatically change the paper feed pressure for papers having different paper feed pressures, and An object of the present invention is to provide an automatic paper feeder capable of handling a plurality of different types of paper in a printer.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するため
に、本発明に係る自動給紙装置は、用紙を搬送する給紙
ローラと、この給紙ローラを駆動するローラ駆動手段
と、用紙を前記給紙ローラに押し付ける給紙圧負荷手段
と、この給紙圧負荷手段の押し付け力を制御する給紙圧
制御手段と、用紙が用紙載置部材から出たことを認識す
る給紙認識手段とを備える。また、本発明に係る自動給
紙装置は、用紙を格納する給紙ケースと、給紙ケース内
で用紙を載せるホッパと、ホッパから給紙される用紙を
１枚だけ分離する用紙分離手段とを備える。また、本発
明に係る自動給紙装置は、給紙圧制御手段による給紙圧
を選択的に可変設定自在とする。In order to achieve this object, an automatic paper feeding apparatus according to the present invention includes a paper feeding roller for carrying a paper, a roller driving means for driving the paper feeding roller, and a paper feeding roller. Paper feed pressure load means for pressing the paper feed roller, paper feed pressure control means for controlling the pressing force of the paper feed pressure load means, and paper feed recognition means for recognizing that the paper has come out of the paper stacking member. Equipped with. Further, the automatic paper feeder according to the present invention comprises a paper feed case for storing paper, a hopper for placing the paper in the paper feed case, and a paper separating means for separating only one paper fed from the hopper. Prepare Further, the automatic paper feeding device according to the present invention allows the paper feeding pressure to be selectively variably set by the paper feeding pressure control means.
【０００６】[0006]
【作用】本発明によれば、給紙負荷手段は給紙圧制御手
段により用紙が給紙される押し付け力を制御され、その
押し付け力は、用紙が給紙されたことを認識する給紙認
識手段により保持される。According to the present invention, the paper feeding load means is controlled by the paper feeding pressure control means to press the paper, and the pressing force is used to recognize that the paper has been fed. Held by means.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図に基づいて説明
する。図１は本発明に係る自動給紙装置の横断面図、図
２は同じく給紙動作の流れを示すフローチャート図であ
る。これらの図において、従来技術と同一の構成につい
ては同一の符号を付し詳細な説明は省略する。給紙ケー
ス１の底面部には、貫通穴１ａが穿設されている。２は
搬送路１１の給紙ケース１に近接して設けられた給紙認
識センサである。４は給紙圧負荷モータ、５は給紙圧負
荷モータ４により回動させられる回転体５ａに一端を固
定された給紙圧ばねである。６は給紙圧レバーで、給紙
ケース１下方における一端で装置に揺動自在に支持さ
れ、貫通穴１ａを通り他端が、前記給紙圧ばね５により
押し上げられてホッパ７の下端に当接して、ホッパ７を
押し上げている。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of an automatic paper feeding device according to the present invention, and FIG. 2 is a flow chart showing the flow of the paper feeding operation. In these drawings, the same components as those in the conventional technique are designated by the same reference numerals, and detailed description thereof will be omitted. The bottom surface of the paper feed case 1 has a through hole 1a. Reference numeral 2 denotes a paper feed recognition sensor provided near the paper feed case 1 on the transport path 11. Reference numeral 4 is a paper feed pressure load motor, and 5 is a paper feed pressure spring whose one end is fixed to a rotating body 5a rotated by the paper feed pressure load motor 4. A feeding pressure lever 6 is swingably supported by the apparatus at one end below the feeding case 1, passes through the through hole 1a, and the other end is pushed up by the feeding pressure spring 5 and hits the lower end of the hopper 7. It touches and pushes up the hopper 7.
【０００８】次に、このような構成の自動給紙装置の給
紙動作を図２に基づいて説明する。先ず、給紙開始と同
時に、給紙圧負荷モータ４が回転して、給紙圧ばね５を
回転させ、そのばね力により給紙圧レバー６をホッパ７
に押圧させて、ホッパ７を押し上げ紙３を給紙ローラ８
に当接させ、給紙圧ｐが負荷される。次に、給紙ローラ
８が回転し、紙３を送り出そうとする。給紙圧負荷モー
タ４はその後も回転し、徐々に給紙圧ｐは高くなる。給
紙圧ｐが必要な大きさになると紙３は、給紙ローラ８に
より送り出されて分離爪１ｂから外れ、搬送路１１に送
り出され給紙がなされる。この給紙動作は、給紙認識セ
ンサ２によって認識され、給紙負荷モータ４の回転を止
める。その後給紙動作が終了するまで給紙ローラ８が回
転し、給紙動作終了後給紙圧負荷モータ４が逆転し給紙
圧を解除する。Next, the sheet feeding operation of the automatic sheet feeder having such a structure will be described with reference to FIG. First, at the same time as the start of feeding, the feeding pressure load motor 4 rotates to rotate the feeding pressure spring 5, and the feeding force causes the feeding pressure lever 6 to move to the hopper 7.
To the paper feed roller 8
And the sheet feeding pressure p is applied. Next, the paper feed roller 8 rotates and tries to send out the paper 3. The paper feed pressure load motor 4 continues to rotate, and the paper feed pressure p gradually increases. When the sheet feeding pressure p reaches a required value, the sheet 3 is sent out by the sheet feeding roller 8 to come off the separating claw 1b, and is sent out to the conveying path 11 to be fed. This paper feed operation is recognized by the paper feed recognition sensor 2 and the rotation of the paper feed load motor 4 is stopped. After that, the paper feed roller 8 rotates until the paper feed operation ends, and after the paper feed operation ends, the paper feed pressure load motor 4 reverses to release the paper feed pressure.
【０００９】図３は本発明の別の給紙動作を示すフロー
チャートである。このフローチャートでは、給紙開始と
同時に回転する給紙圧負荷モータ４は、給紙圧ばね５を
回転させ、そのばね力により給紙圧レバー６がホッパ７
を持ち上げ紙３と給紙ローラ８とを接触させて給紙圧ｐ
を付与した時点で給紙圧負荷モータ４を停止させる。そ
して、紙３を給紙するために、給紙ローラ８を回転させ
る。この時点で給紙がなされないときは、一旦給紙圧負
荷モータ４を逆転させて、給紙圧を解除する。再び、給
紙圧負荷モータ４を回転させ、今度は給紙圧をｐよりも
やや高くした後に、給紙ローラ８を回転させる。この動
作を正常な給紙が行われるまで徐々に給紙圧を高くしな
がら繰り返し行う。FIG. 3 is a flow chart showing another sheet feeding operation of the present invention. In this flowchart, the paper feed pressure load motor 4 that rotates at the same time as the start of paper feed causes the paper feed pressure spring 5 to rotate, and the paper feed pressure lever 6 causes the hopper 7 to rotate due to the spring force.
To raise the paper 3 and the paper feed roller 8 so that the paper feed pressure p
The paper feed pressure load motor 4 is stopped at the point of time. Then, the paper feed roller 8 is rotated to feed the paper 3. If the paper is not fed at this point, the paper feed pressure load motor 4 is once reversed to release the paper feed pressure. The paper feed pressure load motor 4 is rotated again, this time the paper feed pressure is made slightly higher than p, and then the paper feed roller 8 is rotated. This operation is repeated while gradually increasing the paper feeding pressure until normal paper feeding is performed.
【００１０】図４は本発明の第２の実施例を示すもの
で、限定された複数の紙に対応するのに有効な自動給紙
装置であり、紙種類判別手段を設けることにより、その
紙に合った適正な給紙圧を予め得られるようにしたもの
である。例えば、昇華プリントと溶融プリントの両方を
行えるプリンタにおいては、昇華用の印画紙の厚さを約
２００μｍで、必要な給紙圧が８００ｇ程度となる。ま
た一般的な溶融プリント用の平滑紙は厚さが約８０μｍ
で、必要な給紙厚が２５０ｇ程度となる。したがって、
紙判別センサ９の読取位置に、例えば昇華用の印画紙は
黒マークを予め付けておけば、この黒マークを紙判別セ
ンサ９で読取り、給紙圧負荷モータ４の回転量を制御す
ることにより、必要な給紙圧を予め設定することができ
る。FIG. 4 shows a second embodiment of the present invention, which is an automatic paper feeder which is effective for dealing with a limited number of papers. A suitable paper feeding pressure suitable for the above is obtained in advance. For example, in a printer that can perform both sublimation printing and fusion printing, the thickness of the photographic printing paper for sublimation is about 200 μm, and the required feeding pressure is about 800 g. In addition, the thickness of smooth paper for general fusion printing is about 80 μm.
Thus, the required paper feed thickness is about 250 g. Therefore,
If, for example, photographic printing paper for sublimation has a black mark at the reading position of the paper discrimination sensor 9, the black mark is read by the paper discrimination sensor 9 and the rotation amount of the paper feed pressure load motor 4 is controlled. The required paper feeding pressure can be preset.
【００１１】[0011]
【発明の効果】以上説明したように本発明によれば、用
紙を搬送する給紙ローラと、この給紙ローラを駆動する
ローラ駆動手段と、用紙を前記給紙ローラに押し付ける
給紙圧負荷手段と、この給紙圧負荷手段の押し付け力を
制御する給紙圧制御手段と、用紙が用紙載置部材から出
たことを認識する給紙認識手段とを備え、給紙圧制御手
段により給紙圧負荷手段の押し付け力を、多種類用紙の
異なる給紙圧に合わせるように制御したので、異なる給
紙圧を必要とする多種類用紙を自動給紙可能とする。As described above, according to the present invention, the sheet feeding roller for conveying the sheet, the roller driving means for driving the sheet feeding roller, and the sheet feeding pressure loading means for pressing the sheet against the sheet feeding roller. And a paper feed pressure control means for controlling the pressing force of the paper feed pressure load means, and a paper feed recognition means for recognizing that the paper has come out of the paper placing member. Since the pressing force of the pressure applying means is controlled so as to match the different feeding pressures of the various types of sheets, it is possible to automatically feed the multiple types of sheets that require different feeding pressures.
【００１２】また、給紙圧制御手段による給紙圧を選択
的に可変設定自在としたので、限定された複数の紙の給
紙厚を予め設定できて、適正な給紙圧の選択時間が短縮
される。Further, since the paper feed pressure by the paper feed pressure control means can be selectively variably set, the paper feed thickness of a plurality of limited papers can be set in advance, and the proper paper feed pressure selection time can be set. Shortened.
【図１】本発明に係る自動給紙装置の横断面図である。FIG. 1 is a cross-sectional view of an automatic paper feeder according to the present invention.
【図２】本発明に係る自動給紙装置の動作を示すフロー
チャートである。FIG. 2 is a flow chart showing the operation of the automatic paper feeder according to the present invention.
【図３】本発明に係る自動給紙装置の別の動作を示すフ
ローチャートである。FIG. 3 is a flowchart showing another operation of the automatic paper feeder according to the present invention.
【図４】本発明に係る自動給紙装置の第２の実施例を示
す横断面図である。FIG. 4 is a transverse sectional view showing a second embodiment of the automatic paper feeding device according to the present invention.
【図５】従来の自動給紙装置の横断面図である。FIG. 5 is a cross-sectional view of a conventional automatic paper feeder.
１ 給紙ケース ２ 給紙認識センサ ３ 紙 ４ 給紙圧負荷モータ ５ 給紙圧ばね ６ 給紙圧レバー ７ ホッパ ８ 給紙ローラ ９ 紙判別センサ １０ 印画部 １１ 搬送路 1 Paper Feed Case 2 Paper Feed Recognition Sensor 3 Paper 4 Paper Feed Pressure Load Motor 5 Paper Feed Pressure Spring 6 Paper Feed Pressure Lever 7 Hopper 8 Paper Feed Roller 9 Paper Discrimination Sensor 10 Printing Section 11 Transport Path
Claims (3)
ローラを駆動するローラ駆動手段と、用紙を前記給紙ロ
ーラに押し付ける給紙圧負荷手段と、この給紙圧負荷手
段の押し付け力を制御する給紙圧制御手段と、用紙が用
紙載置部材から出たことを認識する給紙認識手段とを備
えたことを特徴とする自動給紙装置。1. A paper feed roller for conveying a paper, a roller drive means for driving the paper feed roller, a paper feed pressure load means for pressing the paper against the paper feed roller, and a pressing force of the paper feed pressure load means. An automatic paper feeding device comprising: a paper feeding pressure control means for controlling the sheet feeding means; and a paper feeding recognizing means for recognizing that the paper comes out of the paper placing member.
用紙を格納する給紙ケースと、給紙ケース内で用紙を載
せるホッパと、ホッパから給紙される用紙を１枚だけ分
離する用紙分離手段とを備えたことを特徴とする自動給
紙装置。2. The automatic paper feeder according to claim 1,
An automatic paper feeding device comprising: a paper feeding case for storing paper; a hopper for placing the paper in the paper feeding case; and a paper separating means for separating only one paper fed from the hopper.
前記給紙圧制御手段による給紙圧を選択的に可変設定自
在としたことを特徴とする自動給紙装置。3. The automatic paper feeder according to claim 1,
An automatic paper feeding device, wherein the paper feeding pressure by the paper feeding pressure control means can be selectively variably set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23591393A JPH0761609A (en) | 1993-08-30 | 1993-08-30 | Automatic paper feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23591393A JPH0761609A (en) | 1993-08-30 | 1993-08-30 | Automatic paper feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0761609A true JPH0761609A (en) | 1995-03-07 |
Family
ID=16993101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23591393A Pending JPH0761609A (en) | 1993-08-30 | 1993-08-30 | Automatic paper feeding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0761609A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003146447A (en) * | 2001-11-15 | 2003-05-21 | Canon Inc | Paper feeding device and picture image formation device furnished with this device |
| US6953388B2 (en) | 1999-12-22 | 2005-10-11 | Toray Industries, Inc. | Polishing pad, and method and apparatus for polishing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03102018A (en) * | 1989-09-14 | 1991-04-26 | Mita Ind Co Ltd | Paper feeding device |
| JPH04280743A (en) * | 1991-03-08 | 1992-10-06 | Ricoh Co Ltd | Paper feeder |
-
1993
- 1993-08-30 JP JP23591393A patent/JPH0761609A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03102018A (en) * | 1989-09-14 | 1991-04-26 | Mita Ind Co Ltd | Paper feeding device |
| JPH04280743A (en) * | 1991-03-08 | 1992-10-06 | Ricoh Co Ltd | Paper feeder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6953388B2 (en) | 1999-12-22 | 2005-10-11 | Toray Industries, Inc. | Polishing pad, and method and apparatus for polishing |
| JP2003146447A (en) * | 2001-11-15 | 2003-05-21 | Canon Inc | Paper feeding device and picture image formation device furnished with this device |
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