JP2005162470A - Roll paper feeder and recording apparatus - Google Patents

Roll paper feeder and recording apparatus Download PDF

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JP2005162470A
JP2005162470A JP2003407739A JP2003407739A JP2005162470A JP 2005162470 A JP2005162470 A JP 2005162470A JP 2003407739 A JP2003407739 A JP 2003407739A JP 2003407739 A JP2003407739 A JP 2003407739A JP 2005162470 A JP2005162470 A JP 2005162470A
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roll paper
roller
recording
feeding device
paper
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JP2003407739A
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Japanese (ja)
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Takeshi Yamaguchi
武志 山口
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Canon Inc
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Canon Inc
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Priority to JP2003407739A priority Critical patent/JP2005162470A/en
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  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent deficiency caused in recording paper in the case of nipping rolled paper by a pair of roller for long time. <P>SOLUTION: The outer periphery of a paper feed roller on the print surface side of rolled paper is coated with a resin film. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、ロール紙を給送するためのロール紙給送装置及びこれを用いた記録装置に関するものである。   The present invention relates to a roll paper feeding device for feeding roll paper and a recording apparatus using the roll paper feeding device.

画像情報を紙に記録する記録装置は、アナログ情報を光学的に拡大して印画紙に記録する写真の焼付け装置や、デジタル情報を記録するインクジェット方式・昇華方式の記録装置等がある。   Recording apparatuses that record image information on paper include a photographic printing apparatus that optically enlarges analog information and records it on photographic paper, and an ink jet and sublimation recording apparatus that records digital information.

これらの記録装置は、記録紙として予め裁断されたカット紙を使用するものと、円筒状の連続紙であるロール紙を使用するものと、その両者が使用できるものに分かれる。   These recording apparatuses are divided into those that use cut paper cut in advance as recording paper, those that use roll paper that is a cylindrical continuous paper, and those that can use both.

例えば特許文献1に記載されているような、ロール紙を使用する記録装置は、紙の搬送性が優れていることから業務用のプリンタに用いられ、紙も光沢紙や半光沢紙の写真画質用が用いられることが多い。
特開2002-254740号公報
For example, a recording apparatus using roll paper as described in Patent Document 1 is used for a commercial printer because of its excellent paper transportability, and the paper is also photographic image quality of glossy or semi-glossy paper. Is often used.
JP 2002-254740 A

ロール紙を給送するには、予めロール紙の先端を給送ローラにニップしておかなければならず、装置が使われない時もロール紙先端は給送ローラにニップされたまま待機されている。   In order to feed the roll paper, the leading edge of the roll paper must be nipped to the feeding roller in advance, and when the apparatus is not used, the leading edge of the roll paper is kept nipped by the feeding roller and waits. Yes.

しかしながら、ローラは搬送力を得る為、通常ゴムで出来ているので、ニップした状態が長時間続くと、ゴムの架橋で使用されている硫黄が用紙の印刷面に成分移行して、印刷面を黄変させてしまうという問題があった。   However, the roller is usually made of rubber in order to obtain a conveying force, so if the nip state continues for a long time, the sulfur used for rubber cross-linking shifts to the printing surface of the paper, and the printing surface is There was a problem of yellowing.

そこで本発明では、ロール紙の印刷面側の給送ローラ外周を樹脂膜で被覆することにより、ロール紙印刷面とローラのゴム面が直接接触しないので、成分移行による黄変は起こらない。   Therefore, in the present invention, by covering the outer periphery of the feeding roller on the printing surface side of the roll paper with a resin film, the roll paper printing surface and the rubber surface of the roller are not in direct contact, so yellowing due to component transfer does not occur.

また、ローラを樹脂膜で被覆すると、用紙とローラの摩擦抵抗が減少し、搬送不良を起こすことが考えられるが、用紙裏面は従来のゴム製にして、駆動側にすることにより、搬送不良は生じない。   In addition, if the roller is covered with a resin film, the frictional resistance between the paper and the roller may be reduced, which may cause a conveyance failure. Does not occur.

また、樹脂膜をフッ素系樹脂の熱収縮チューブにすることにより、ローラへの被覆が簡単にでき、さらに耐磨耗性、耐薬品性、非粘着性に優れた効果を持たすことができる。   Further, by using a heat-shrinkable tube made of a fluororesin as the resin film, it is possible to easily cover the roller, and to have an effect excellent in wear resistance, chemical resistance, and non-adhesiveness.

さらに、樹脂膜で被覆すると、見かけ上の硬度が高くなり、ニップした状態が長時間続くと圧痕が生じるが、ローラのゴム硬度を低くしてチューブで被覆した状態で、駆動側と同一硬度にすることによって、圧痕が生じることは無い。   Furthermore, when it is covered with a resin film, the apparent hardness increases, and when the niped state continues for a long time, indentation occurs, but with the roller rubber hardness reduced and covered with a tube, the same hardness as the drive side is obtained. By doing so, there is no indentation.

給送従動ローラを樹脂膜で被覆したため、長時間ロール紙をニップした状態でいても、ゴムの成分移行による黄変は起こらない。   Since the feeding driven roller is coated with a resin film, yellowing due to rubber component transfer does not occur even when the roll paper is nipped for a long time.

また、駆動ローラは用紙裏面に設け、従来のゴム製の為、グリップ力の低下は少なく、給送不良は起こらない。   In addition, since the driving roller is provided on the back side of the paper and is made of a conventional rubber, there is little decrease in gripping force, and feeding failure does not occur.

また、樹脂膜をフッ素系樹脂の熱収縮チューブにすることにより、ローラへの被覆が簡単にでき、さらに耐磨耗性、耐薬品性、非粘着性に優れた効果を持たすことができる。   Further, by using a heat-shrinkable tube made of a fluororesin as the resin film, it is possible to easily cover the roller, and to have an effect excellent in wear resistance, chemical resistance, and non-adhesiveness.

さらに、従動ローラのゴム硬度を駆動側より低くし、樹脂膜で被覆した状態で、同一硬度になるようにしたので、圧痕が発生しない。   Furthermore, since the rubber hardness of the driven roller is made lower than that on the driving side and the same hardness is obtained in the state of being covered with the resin film, no indentation is generated.

次に本発明の一実施形態に係るロール紙給送装置及びこれを備えた記録装置について、図面を参照して説明する。   Next, a roll paper feeding apparatus according to an embodiment of the present invention and a recording apparatus including the same will be described with reference to the drawings.

まず、図1を参照して記録装置の全体構成について説明する。なお、図1は本発明を適用した記録装置の断面説明図である。   First, the overall configuration of the recording apparatus will be described with reference to FIG. FIG. 1 is a cross-sectional explanatory view of a recording apparatus to which the present invention is applied.

図1において、1は記録装置本体、2はデータを印刷するロール紙を給送する給送装置で、ロール状に巻かれた長尺形状をしているロール紙2aを収容する収容部と、このロール紙2aを給送する一対の給送ローラ2b、2cから成っている。3は一対の搬送ローラで給送装置2で給送されたロール紙Pを下流側へ搬送するローラ対である。   In FIG. 1, 1 is a recording apparatus main body, 2 is a feeding apparatus that feeds roll paper for printing data, and an accommodating portion that accommodates a roll paper 2a having a long shape wound in a roll shape; It consists of a pair of feed rollers 2b and 2c for feeding the roll paper 2a. Reference numeral 3 denotes a pair of rollers for conveying the roll paper P fed by the feeding device 2 to the downstream side with a pair of conveying rollers.

4は記録部で、不図示のパソコンからの命令でデータをロール紙Pに印刷する。   A recording unit 4 prints data on the roll paper P according to a command from a personal computer (not shown).

本実施形態では記録部として記録信号に応じてインクを吐出して記録を行うインクジェット記録方式を用いている。また、インクの吐出構成として、記録信号に応じて電気熱変換体に通電し、その熱エネルギーによってインクに生ずる膜沸騰を利用してインクに生ずる気泡の成長、収縮により、インクを吐出口から吐出して記録を行うように構成している。このように、熱エネルギーによって気泡を成長収縮させてインクを吐出させることで、特に応答性に優れた液体の吐出が達成できる。   In the present embodiment, an ink jet recording method is used in which recording is performed by ejecting ink in accordance with a recording signal as the recording unit. Also, as the ink ejection configuration, the electrothermal transducer is energized according to the recording signal, and the ink is ejected from the ejection port by the growth and contraction of bubbles generated in the ink by utilizing the film boiling that occurs in the ink due to the thermal energy. And recording is performed. In this way, by ejecting ink by growing and shrinking bubbles with thermal energy, it is possible to achieve ejection of a liquid with particularly excellent responsiveness.

5は一対の搬送ローラで、記録部4で印刷されたロール紙Pを下流側へ搬送するローラ対である。6は長尺形状のロール紙Pを切断するカッタで、固定刃6aと回転しながら移動する可動刃6bから構成されている。7はカッタ6で切断されたロール紙Pを機外に排出する排出ローラで、8はロール紙Pを収容する排出トレイである。   Reference numeral 5 denotes a pair of conveyance rollers, which are a roller pair that conveys the roll paper P printed by the recording unit 4 to the downstream side. Reference numeral 6 denotes a cutter for cutting the long roll paper P. The cutter 6 includes a fixed blade 6a and a movable blade 6b that moves while rotating. 7 is a discharge roller for discharging the roll paper P cut by the cutter 6 to the outside of the machine, and 8 is a discharge tray for storing the roll paper P.

図2にロール紙給送装置の斜視図を示す。図中に示すように、待機時のロール紙Pの先端は給送ローラ対2b、2cにニップされている。給送ローラ対は2bが従動側、2cが駆動側になっており、ロール紙Pは給送従動ローラ2b側が印刷面となっている。給送従動ローラ2bは給送駆動ローラ2cに、図示していないばねで、一定圧力で押圧されている。また、給送駆動ローラ2cは図示していないカップリングで本体から駆動を取っている。   FIG. 2 is a perspective view of the roll paper feeding device. As shown in the drawing, the leading edge of the roll paper P during standby is nipped by the feed roller pairs 2b and 2c. The feed roller pair 2b is a driven side, 2c is a drive side, and the roll paper P has a printing surface on the feed driven roller 2b side. The feed driven roller 2b is pressed against the feed drive roller 2c by a spring (not shown) with a constant pressure. The feed driving roller 2c is driven from the main body by a coupling (not shown).

ロール紙Pと給送ローラ対2b、2cの拡大図を図3に示す。給送従動ローラ2bの外周は樹脂膜2dで被覆されている。樹脂膜はローラへの被覆が簡単にでき、耐磨耗性、耐薬品性、非粘着性に優れた、フッ素系熱収縮チューブが望ましい。この樹脂膜により、ローラのゴムとロール紙Pの印刷面が直接触れることは無いので、ゴムから印刷面への成分移行は起こらない。   An enlarged view of the roll paper P and the pair of feed rollers 2b and 2c is shown in FIG. The outer periphery of the feeding driven roller 2b is covered with a resin film 2d. The resin film is preferably a fluorine-based heat-shrinkable tube that can be easily coated on the roller and has excellent wear resistance, chemical resistance, and non-adhesiveness. Since the resin film does not directly contact the rubber of the roller and the printing surface of the roll paper P, component transfer from the rubber to the printing surface does not occur.

また、フッ素系樹脂は低摩擦性でローラのグリップ力が低下し、給送不良が起こることが考えられるが、本発明では駆動ローラは従来のゴム製であり、グリップ力の低下は少なく、給送不良は起こらない。また、駆動ローラ側であるロール紙の裏面はインクを吸収する受容層がなく、ゴムからの成分移行が起こらない為、用紙の黄変は発生しない。   In addition, it is considered that the fluororesin has low friction and lowers the gripping force of the roller, resulting in poor feeding. However, in the present invention, the driving roller is made of a conventional rubber, and the gripping force is not significantly reduced. Poor delivery does not occur. Further, the reverse side of the roll paper on the drive roller side does not have a receiving layer that absorbs ink, and no component transfer from rubber occurs, so that yellowing of the paper does not occur.

さらに、ローラを樹脂膜で被覆すると、ローラ表面の硬度は上がる為、長時間用紙をニップした状態が続くと、図4Aのように給送従動ローラ2bは給送駆動ローラ2cにめり込む形となる。すると、図4Bのように用紙表面に圧痕Paが生じ、印刷が途切れたり、用紙の搬送不良を起こしたりという不具合が有る。そこで、樹脂膜で被覆したときに、駆動側と同じ硬度になるように、内部のゴム硬度を駆動側より低くすることにより、図5のように給送ローラが2c、2bが均等に潰れ、圧痕が発生することがなくなる。   Further, when the roller is covered with a resin film, the hardness of the roller surface is increased. Therefore, when the state in which the sheet is nipped for a long time continues, the feeding driven roller 2b is indented into the feeding driving roller 2c as shown in FIG. 4A. . Then, as shown in FIG. 4B, there are indentations Pa on the surface of the paper, and there is a problem that printing is interrupted or a paper conveyance failure occurs. Therefore, when the inner rubber hardness is made lower than that on the driving side so as to have the same hardness as that on the driving side when covered with the resin film, the feeding rollers 2c and 2b are uniformly crushed as shown in FIG. No indentation occurs.

本発明を備えている記録装置の断面説明図である。1 is a cross-sectional explanatory view of a recording apparatus provided with the present invention. 本発明を備えているロール紙給送装置の斜視図である。It is a perspective view of the roll paper feeding apparatus provided with this invention. ロール紙給送装置のニップ部の拡大図である。It is an enlarged view of the nip part of a roll paper feeding apparatus. ロール紙を長時間ニップしていた時に発生する圧痕の説明図である。It is explanatory drawing of the impression which generate | occur | produces when a roll paper is nipped for a long time. 給送従動ローラのゴム硬度を低くした時の説明図である。It is explanatory drawing when the rubber hardness of a feeding driven roller is made low.

符号の説明Explanation of symbols

P ロール紙
1 記録装置本体
2 給送装置
2a ロール紙(ロール状)
2b 給送従動ローラ
2c 給送駆動ローラ
2d 樹脂膜
3 搬送ローラ
4 記録部
5 搬送ローラ
6 カッタ
6a 固定刃
6b 可動刃
7 排出ローラ
8 排出トレイ
P Roll paper 1 Recording device body 2 Feed device 2a Roll paper (roll shape)
2b Feeding driven roller 2c Feeding drive roller 2d Resin film 3 Conveying roller 4 Recording unit 5 Conveying roller 6 Cutter 6a Fixed blade 6b Movable blade 7 Discharge roller 8 Discharge tray

Claims (5)

ロール紙を収納する収容部と、該収容部にて前記ロール紙を保持し、給送する一対の給送ローラから成っているロール紙給送装置において、ロール紙の印刷面側の給送ローラ外周を樹脂膜で被覆することを特長とするロール紙給送装置。   In a roll paper feeding device comprising a storage section for storing roll paper and a pair of feed rollers for holding and feeding the roll paper in the storage section, a feed roller on the printing surface side of the roll paper A roll paper feeding device characterized in that the outer periphery is covered with a resin film. 前記給送ローラは、ロール紙の裏面側が動力を与えられ回転する駆動ローラで、印刷面側が前記駆動ローラに回転可能に押圧されている従動ローラであることを特徴とする請求項1記載のロール紙給送装置。   2. The roll according to claim 1, wherein the feeding roller is a driving roller that is rotated by being powered on the back surface side of the roll paper, and a driven roller whose printing surface side is rotatably pressed by the driving roller. Paper feeding device. 前記給送ローラはゴム製であり、ゴム硬度が裏面側より印刷面側の方が低いことを特徴とする請求項1記載のロール紙給送装置。   2. The roll paper feeding device according to claim 1, wherein the feeding roller is made of rubber, and the rubber hardness is lower on the printing surface side than on the back surface side. 前記樹脂膜はフッ素系樹脂の熱収縮チューブであることを特徴とする請求項1記載のロール紙給送装置。   2. The roll paper feeding device according to claim 1, wherein the resin film is a heat-shrinkable tube made of fluorine resin. ロール紙を搬送して記録部で記録を行い、記録後のシートを切断する記録装置において、前記ロール紙給送装置として請求項1乃至請求項4のいずれか1項に記載のロール紙給送装置を備えたことを特徴とする記録装置。
The roll paper feeding device according to any one of claims 1 to 4, wherein the roll paper feeding device is a recording device that transports the roll paper, performs recording in a recording unit, and cuts the sheet after recording. A recording apparatus comprising the apparatus.
JP2003407739A 2003-12-05 2003-12-05 Roll paper feeder and recording apparatus Withdrawn JP2005162470A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009202394A (en) * 2008-02-27 2009-09-10 Mimaki Engineering Co Ltd Printer
US8517497B2 (en) 2010-03-15 2013-08-27 Seiko Epson Corporation Recording device
JP2020016355A (en) * 2018-07-23 2020-01-30 株式会社リコー Drier and printer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009202394A (en) * 2008-02-27 2009-09-10 Mimaki Engineering Co Ltd Printer
US8517497B2 (en) 2010-03-15 2013-08-27 Seiko Epson Corporation Recording device
US8721023B2 (en) 2010-03-15 2014-05-13 Seiko Epson Corporation Recording device
JP2020016355A (en) * 2018-07-23 2020-01-30 株式会社リコー Drier and printer
JP7172230B2 (en) 2018-07-23 2022-11-16 株式会社リコー Drying equipment, printing equipment

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