JP2562291B2 - Paper feeding method - Google Patents

Paper feeding method

Info

Publication number
JP2562291B2
JP2562291B2 JP60169441A JP16944185A JP2562291B2 JP 2562291 B2 JP2562291 B2 JP 2562291B2 JP 60169441 A JP60169441 A JP 60169441A JP 16944185 A JP16944185 A JP 16944185A JP 2562291 B2 JP2562291 B2 JP 2562291B2
Authority
JP
Japan
Prior art keywords
platen roller
paper
recording paper
roller
recording
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 - Lifetime
Application number
JP60169441A
Other languages
Japanese (ja)
Other versions
JPS6230066A (en
Inventor
済 中澤
邦彦 松橋
平 矢崎
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP60169441A priority Critical patent/JP2562291B2/en
Publication of JPS6230066A publication Critical patent/JPS6230066A/en
Application granted granted Critical
Publication of JP2562291B2 publication Critical patent/JP2562291B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets

Landscapes

  • Handling Of Sheets (AREA)
  • Handling Of Cut Paper (AREA)

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、プリンタ等の適用される給紙方法に関す
る。
The present invention relates to a paper feeding method applied to a printer or the like.

(従来技術) 正しい位置に記録書込みを行なわすべく、記録紙を記
録書込み部に正しく送り込む手段についてはこれまでに
多くの提案がなされている。
(Prior Art) Many proposals have so far been made for a means for correctly feeding a recording sheet to a recording / writing unit in order to perform recording / writing at a correct position.

特開昭57−1780号公報及び特開昭60−97876号公報に
開示されたものはその代表的なもので、前者は、プラテ
ンローラを逆転させた状態のもとで記録紙を送り込み、
その先端をプラテンローラに当接させて、これを軸と平
行な向きに正しく変位させた上で、プラテンローラを正
転に切換えて送り込むようにしたものであり、後者は、
正転動するプラテンローラにより記録紙の先端を送り込
み、ついで逆転させて記録紙を排出し、その際記録紙を
湾曲させてそのコシにより先端をプラテンローラと紙送
りローラとの圧接部分に突当てて記録紙の向きを整えた
上、プラテンローラの正転に切換えて記録紙を送り込む
ようにしたものである。
The ones disclosed in JP-A-57-1780 and JP-A-60-97876 are typical ones.The former feeds the recording paper under the condition that the platen roller is reversed,
The tip of the platen roller is brought into contact with the platen roller, the platen roller is properly displaced in a direction parallel to the axis, and then the platen roller is switched to forward rotation and fed.
The front end of the recording paper is fed by the platen roller that rotates in the forward direction, and then it is rotated in the reverse direction to eject the recording paper. After adjusting the orientation of the recording paper, the platen roller is switched to forward rotation to feed the recording paper.

ところが、記録紙をプラテンローラのもとへ送り込ん
だ当初は、第3図に見られるように、先端がプラテンロ
ーラと紙送りローラとの圧接部分に正しく当接するとは
限らないため、前者においては、逆転から正転に切換え
た直後におけるくわえ込みのタイミングにずれが生じ
て、印字開始位置が一定しないといった頭出し精度の面
で問題があり、また、後者においては、最初の引込み量
に差がでるため、つぎの逆転によって戻した記録紙の戻
し量、つまり記録紙に与えるたわみの量に影響がでて、
紙先端を正しく揃えられないといった不都合が生じる。
However, when the recording paper is sent to the platen roller at the beginning, as shown in FIG. 3, the leading end does not always come into proper contact with the pressure contact portion between the platen roller and the paper feed roller. However, there is a problem in the cueing accuracy that the grip start timing is deviated immediately after switching from reverse rotation to normal rotation and the print start position is not constant.In the latter case, there is a difference in the initial pull-in amount. Therefore, the return amount of the recording paper returned by the next reverse rotation, that is, the amount of deflection given to the recording paper is affected,
The inconvenience arises that the leading edges of the paper cannot be aligned correctly.

(発明が解決しようとする課題) 本発明はこのような問題に鑑みてなされたもので、そ
の目的とするところは、頭出し精度と、スキュ精度を同
時にもたらすことのできる新たな給紙方法を提供するこ
とにある。
(Problems to be Solved by the Invention) The present invention has been made in view of the above problems, and an object of the present invention is to provide a new paper feeding method capable of simultaneously providing cueing accuracy and skew accuracy. To provide.

(課題を解決するための手段) すなわち、本発明はかかる課題を達成するための給紙
方法として、はしめに、プラテンローラを逆転させつつ
記録紙を該プラテンローラに向けて送り出し、ついで、
プラテンローラを僅かに正転させて記録紙の先端を送り
込んだ上、づきに、正転時の回転角よりも僅かに大きな
回転角をもってプラテンローラを逆転させて記録紙をプ
ラテンローラと紙送りローラとの圧接部分へ戻し,最後
に、プラテンローラを再び正転させて記録紙を送り込む
ようにしたものである。
(Means for Solving the Problem) That is, the present invention is, as a paper feeding method for achieving such a problem, by feeding the recording paper toward the platen roller while rotating the platen roller in the reverse direction,
The platen roller is rotated slightly forward to feed the leading edge of the recording paper, and then the platen roller is rotated in reverse at a rotation angle slightly larger than the rotation angle during normal rotation to move the recording paper to the platen roller and paper feed roller. It returns to the pressure contact part with, and finally, the platen roller is normally rotated again to feed the recording paper.

(実施例) そこで以下に図示した実施例について説明する。(Embodiment) Therefore, an embodiment illustrated below will be described.

第2図はこの給紙方法に使用される紙送り装置の一例
を示したもので、ストッカー8上の給紙ローラ7とプラ
テンローラ2とは、給紙ローラ7が給紙のための正回転
を行っているときには、プラテンローラ2は逆回転して
いるような関係のもとで中間伝達歯車3〜6を介して結
合されている。
FIG. 2 shows an example of a paper feeding device used for this paper feeding method. The paper feeding roller 7 and the platen roller 2 on the stocker 8 are the normal rotations for the paper feeding roller 7 to feed. The platen roller 2 is coupled via the intermediate transmission gears 3 to 6 in a relationship such that it rotates in the reverse direction.

なお、図中符号1はプラテンローラ2の圧接して転動
する紙送りローラを示している。
In the figure, reference numeral 1 indicates a paper feed roller which rolls in pressure contact with the platen roller 2.

つぎに、紙送り操作を示す第1図と、各給紙動作を示
す第2乃至第5図をもとに、本発明の一実施例をなす給
紙動作について説明する。
Next, a sheet feeding operation which constitutes an embodiment of the present invention will be described based on FIG. 1 showing a sheet feeding operation and FIGS. 2 to 5 showing each sheet feeding operation.

はじめに、給紙ローラ7と連動するプラテンローラ2
を逆転させた状態でストッカー8上の記録紙Sを送り出
す(ステップA)。
First, the platen roller 2 that interlocks with the paper feed roller 7
The recording paper S on the stocker 8 is sent out in the state of being reversed (step A).

これにより、記録紙Sの先端は、プラテンローラ2と
紙送りローラ1との圧接部分2−1に必ずしも導かれる
とは限らず、第3図に示したように、紙送りローラ1の
周面あるいは、紙送りローラ1とガイド部材との間に当
接し、ここで撓みが形成された記録紙Sは、そのコシに
より先端をプラテンローラ2の軸と平行なJ向きに変位
してその向きを正しく整える。
As a result, the leading edge of the recording paper S is not always guided to the pressure contact portion 2-1 between the platen roller 2 and the paper feed roller 1, and as shown in FIG. Alternatively, the recording paper S that is abutted between the paper feed roller 1 and the guide member and is bent here has its tip displaced in the J direction parallel to the axis of the platen roller 2 to change its direction. Get it right.

つぎに、プラテンローラ2を僅かに正回転させる(ス
テップB)。
Next, the platen roller 2 is slightly rotated forward (step B).

これにより、第4図に示したように、プラテンローラ
2と紙送りローラ1は、記録紙Sの先端部分を引込む
が、この直前の記録紙Sの位置の違いにより引込み量に
若干の違いを生じる。
As a result, as shown in FIG. 4, the platen roller 2 and the paper feed roller 1 pull in the leading end portion of the recording paper S, but due to the difference in the position of the recording paper S immediately before this, there is a slight difference in the retracted amount. Occurs.

つぎに、さきの正転時の回転角より若干大きな回転角
をもってプラテンローラ2を逆転させる(ステップ
C)。
Next, the platen roller 2 is reversely rotated at a rotation angle slightly larger than the rotation angle at the time of forward rotation (step C).

これにより、第5図に示したように、さきに送り出さ
れた記録紙Sは、引込み量の違いの有無に拘りなくプラ
テンローラ2と紙送りローラ1との圧接部分2−1に引
戻され、先端がここに当接した状態で停止する。
As a result, as shown in FIG. 5, the recording paper S that has been fed out is pulled back to the pressure contact portion 2-1 between the platen roller 2 and the paper feed roller 1 regardless of the difference in the amount of pull-in. , Stop with the tip touching here.

そして最後に、プラテンローラ2を再び正転に切換え
る(ステップD)。
Finally, the platen roller 2 is switched to the normal rotation again (step D).

これにより、プラテンローラ2と紙送りローラ1は、
圧接部分2−1に位置決めされた記録紙Sは、プラテン
ローラ2の回転角に比例した搬送量をもって送り出され
てその記録書込み位置を一定に管理される。
As a result, the platen roller 2 and the paper feed roller 1 are
The recording paper S positioned at the pressure contact portion 2-1 is sent out with a conveyance amount proportional to the rotation angle of the platen roller 2, and its recording / writing position is controlled to be constant.

(効果) 以上述べたように本発明によれば、プラテンローラを
逆転させた状態で記録紙を送り込み、記録紙がプラテン
ローラのもとに達した段階でプラテンローラを若干正転
に切換え、ついでこの正転量よりも僅かに大きな量だけ
逆転さてて、最後に紙送りのための正転に切換えるよう
にしたので、最初の逆転により記録紙の送りを阻みつつ
これの向きを整えて、正確なスキュを行うことができる
とともに、づきの僅かに正転と、これよりも若干大なる
逆転により、記録紙の先端を、紙送りの始端位置、つま
りプラテンローラと紙送りローラとが圧接する位置に正
しく位置させて、づきの紙送りのための正確な頭出しを
行うことができる。
(Effect) As described above, according to the present invention, the recording paper is fed with the platen roller being rotated in the reverse direction, and when the recording paper reaches the platen roller, the platen roller is slightly switched to the normal rotation, By reversing the forward rotation by a slightly larger amount than this forward rotation, and finally switching to the forward rotation for paper feed, the first reverse rotation prevents the recording paper from being fed and the orientation is adjusted to be accurate. It is possible to perform various skews, and by slightly forward rotation and slightly higher reverse rotation, the leading edge of the recording paper is at the paper feed start end position, that is, the position where the platen roller and paper feed roller are in pressure contact. It is possible to position the paper correctly at the position and perform accurate cueing for continuous paper feeding.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明の一実施例をなす紙送りのシーケンスを
示した図、第2図は本発明方法に使用される装置による
第1の工程を示した図、第3図はこの工程により送り出
された記録紙の先端の位置を示した図、第4図、第5図
は第2、第3の工程を示した図である。 1……紙送りローラ、2……プラテンローラ 7……給紙ローラ、S……記録紙
FIG. 1 is a diagram showing a sequence of paper feeding which constitutes an embodiment of the present invention, FIG. 2 is a diagram showing a first step by an apparatus used in the method of the present invention, and FIG. 3 is a diagram showing this step. FIGS. 4 and 5 are views showing the position of the leading end of the fed recording paper, and FIGS. 4 and 5 are views showing the second and third steps. 1 ... Paper feed roller, 2 ... Platen roller 7 ... Paper feed roller, S ... Recording paper

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】プラテンローラを逆転させつつ記録紙を該
プラテンローラに向けて送り出す工程と、 上記記録紙が上記プラテンローラのもとに達した時点
で、該プラテンローラを僅かに正転される工程と、 上記正転時の回転角よりも僅かに大きな回転角をもって
上記プラテンローラを逆転させる工程と、 上記記録紙を送り込むべく上記プラテンローラを再び正
転させる工程と、 からなる給紙方法。
1. A step of feeding a recording sheet toward the platen roller while reversing the platen roller, and when the recording sheet reaches the platen roller, the platen roller is slightly forwardly rotated. And a step of rotating the platen roller in the reverse direction at a rotation angle slightly larger than the rotation angle in the forward rotation, and a step of rotating the platen roller again in the forward direction to feed the recording paper.
JP60169441A 1985-07-31 1985-07-31 Paper feeding method Expired - Lifetime JP2562291B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60169441A JP2562291B2 (en) 1985-07-31 1985-07-31 Paper feeding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60169441A JP2562291B2 (en) 1985-07-31 1985-07-31 Paper feeding method

Publications (2)

Publication Number Publication Date
JPS6230066A JPS6230066A (en) 1987-02-09
JP2562291B2 true JP2562291B2 (en) 1996-12-11

Family

ID=15886661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60169441A Expired - Lifetime JP2562291B2 (en) 1985-07-31 1985-07-31 Paper feeding method

Country Status (1)

Country Link
JP (1) JP2562291B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63288837A (en) * 1987-05-18 1988-11-25 Seiko Epson Corp Paper feeder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS571780A (en) * 1980-06-03 1982-01-06 Ricoh Co Ltd Paper feeder for printer
JPS6097876A (en) * 1983-11-02 1985-05-31 Nippon Seimitsu Kogyo Kk Printer with automatic paper-supplying device

Also Published As

Publication number Publication date
JPS6230066A (en) 1987-02-09

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