JP2007261778A - Recorded medium conveyance device, recording device, manufacturing method for recording device, and liquid jetting device - Google Patents

Recorded medium conveyance device, recording device, manufacturing method for recording device, and liquid jetting device Download PDF

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JP2007261778A
JP2007261778A JP2006090993A JP2006090993A JP2007261778A JP 2007261778 A JP2007261778 A JP 2007261778A JP 2006090993 A JP2006090993 A JP 2006090993A JP 2006090993 A JP2006090993 A JP 2006090993A JP 2007261778 A JP2007261778 A JP 2007261778A
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transport
recording medium
conveyance
roller
driven
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JP4561999B2 (en
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Kenjiro Ishihara
研二郎 石原
Kazuhisa Takeda
和久 竹田
Mamoru Ukita
衛 浮田
Kohei Ueno
幸平 上野
Teruo Yoda
輝雄 依田
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Seiko Epson Corp
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Seiko Epson Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording device capable of compensating skewing properly even if sizes of paper sheets are different and to provide a manufacturing method for the recording device. <P>SOLUTION: Paper guide sections 24A, 24B, 24C supporting a conveyance driven roller 31 pivotally are constituted so as to displace independently from each other to adjust a position of a rotary shaft axis of the conveyance driven roller 31. When performing skew compensation, a paper sheet P1 having small size is conveyed to displace the paper guide sections 24A, 24B so as to compensate the skewing. After that, a paper sheet P2 having large size is conveyed to displace only the paper guide section 24C so as to compensate the skewing. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、記録装置において被記録媒体を搬送する被記録媒体搬送装置及びこれを備えた記録装置並びに当該記録装置の製造方法に関する。また、本発明は液体噴射装置に関する。   The present invention relates to a recording medium conveying apparatus that conveys a recording medium in a recording apparatus, a recording apparatus including the recording medium, and a method for manufacturing the recording apparatus. The present invention also relates to a liquid ejecting apparatus.

ここで、液体噴射装置とは、インクジェット式記録ヘッドが用いられ、該記録ヘッドからインクを吐出して被記録媒体に記録を行うプリンタ、複写機およびファクシミリ等の記録装置に限らず、インクに代えてその用途に対応する液体を前記インクジェット式記録ヘッドに相当する液体噴射ヘッドから被記録媒体に相当する被噴射媒体に噴射して、前記液体を前記被噴射媒体に付着させる装置を含む意味で用いる。
液体噴射ヘッドとして、前記記録ヘッドの他に、液晶ディスプレー等のカラーフィルター製造に用いられる色材噴射ヘッド、有機ＥＬディスプレーや面発光ディスプレー（ＦＥＤ）等の電極形成に用いられる電極材（導電ペースト）噴射ヘッド、バイオチップ製造に用いられる生体有機物噴射ヘッド、精密ピペットとしての試料噴射ヘッド等が挙げられる。 Here, the liquid ejecting apparatus uses an ink jet recording head, and is not limited to a recording apparatus such as a printer, a copying machine, and a facsimile machine that discharges ink from the recording head to perform recording on a recording medium. And a device that ejects a liquid corresponding to the application from a liquid ejecting head corresponding to the ink jet recording head to an ejected medium corresponding to a recording medium, and adheres the liquid to the ejected medium. .
In addition to the recording head, as a liquid ejecting head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display or a surface emitting display (FED) Examples thereof include an ejection head, a bioorganic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.

記録装置或いは液体噴射装置の一例としてプリンタがある。プリンタには、記録ヘッドと、当該記録ヘッドの上流側に設けられ、被記録媒体或いは被噴射媒体の一例としての記録用紙を下流側へ搬送する搬送ローラと、記録ヘッドの下流側に設けられ、記録の行われた記録用紙を排出する排出ローラと、を備えたものがある。また、搬送ローラは、回転駆動される搬送駆動ローラと、この搬送駆動ローラの回転軸線方向に複数設けられるとともに、搬送駆動ローラに圧接して従動回転する搬送従動ローラとを備えて構成されるものが一般的である。   There is a printer as an example of a recording apparatus or a liquid ejecting apparatus. The printer is provided on the downstream side of the recording head, on the upstream side of the recording head, on the downstream side of the recording head, and on the downstream side of the recording head. Some have a discharge roller for discharging a recording sheet on which recording has been performed. In addition, the conveyance roller is configured to include a conveyance drive roller that is rotationally driven, and a conveyance driven roller that is provided in plural in the rotation axis direction of the conveyance drive roller and that is driven to rotate while being pressed against the conveyance drive roller. Is common.

ここで、搬送駆動ローラの左右外径差や組立時の精度が低下する等に起因して、搬送ローラによって記録用紙を搬送する際にスキュー傾向が生じる場合がある。このスキュー傾向を矯正する技術としては、特許文献１に示す様に、紙送りローラ周面への紙押さえローラの圧接位置を紙搬送方向前後に変位させるようにしたものがある。これによれば、記録紙と紙送りローラとの接触面積を調整することができ、接触面積を増大させることによって用紙と紙送りローラ周面との間の摩擦接触力を増大させ、紙送りローラに起因するスキューの発生を防止することができる。   Here, a skew tendency may occur when the recording paper is transported by the transport roller due to a difference between the left and right outer diameters of the transport drive roller and a decrease in accuracy during assembly. As a technique for correcting this skew tendency, as shown in Patent Document 1, there is a technique in which the press-contact position of the paper pressing roller to the peripheral surface of the paper feed roller is displaced in the front and rear directions in the paper transport direction. According to this, the contact area between the recording paper and the paper feed roller can be adjusted, and by increasing the contact area, the frictional contact force between the paper and the paper feed roller peripheral surface is increased. It is possible to prevent the occurrence of skew due to the above.

特許第３１４２１４７号公報Japanese Patent No. 3142147

用紙幅には種々のものがあるが、用紙幅の小さい記録用紙と用紙幅の大きい記録用紙とでは、スキュー傾向が異なる場合がある。即ち、例えば搬送駆動ローラの左右外径差が存在する場合には、搬送駆動ローラにおいて用紙幅の小さい記録用紙が接する領域と、用紙幅の大きい記録用紙が接する領域とでは異なる為、これによってスキュー傾向に差異が生じる。   There are various paper widths, but the skew tendency may be different between a recording paper with a small paper width and a recording paper with a large paper width. That is, for example, when there is a difference between the left and right outer diameters of the transport driving roller, the area where the recording paper with the small paper width contacts the area where the recording paper with the large paper width contacts with the transport driving roller. Differences in trends.

また、搬送ローラの上流側に設けられた給送ローラが、用紙幅方向に一つのみ設けられ、且つ１桁側に偏倚した位置に配置されている場合には、１桁側基準で用紙を給送する際、用紙幅の小さい用紙に対して給送ローラは８０桁側に偏倚した場所で当該用紙幅の小さい用紙と接することとなり、逆に用紙幅の大きい用紙に対しては、給送ローラは１桁側に偏倚した場所で用紙と接することとなる。従ってこれにより、給送ローラによって用紙が給送される際に、用紙幅の違いによってスキュー方向が変わってしまう。   In addition, when only one feeding roller provided on the upstream side of the conveying roller is provided in the paper width direction and is disposed at a position deviated to the first digit side, the paper is fed on the first digit side basis. When feeding paper, the feed roller comes into contact with the paper with a small paper width at a position deviated to the 80th digit for a paper with a small paper width. The roller comes into contact with the sheet at a position deviated to the single digit side. Accordingly, when the sheet is fed by the feeding roller, the skew direction changes due to the difference in the sheet width.

しかしながら上記特許文献１記載のプリンタでは、紙押さえローラの圧接位置を左右均しく変位させることから、摩擦接触力が大きくなって用紙搬送力が全体的に増大しても、紙送りローラが発揮する用紙搬送力の左右差は依然解消されず、従って用紙サイズが異なると適切にスキューを補正できない場合が生じる。また、用紙幅が異なることによって給送ローラの接する位置が用紙サイズ毎に変化する場合、即ち用紙サイズが異なるとスキュー方向が変わる構成においても、用紙サイズが異なると適切にスキューを補正できない場合が生じる。   However, in the printer described in Patent Document 1, since the press contact position of the paper pressing roller is displaced evenly from side to side, the paper feed roller exhibits even if the frictional contact force increases and the paper transport force increases as a whole. The left-right difference in the sheet conveying force is still not resolved, and accordingly, the skew may not be corrected appropriately if the sheet size is different. In addition, when the position where the feeding roller contacts changes for each paper size due to different paper widths, that is, even in a configuration in which the skew direction changes when the paper size is different, the skew may not be corrected appropriately if the paper size is different. Arise.

本発明は上記従来技術の有する欠点を克服する為に成されたものであり、その目的は、用紙サイズが異なっても、適切にスキューを補正することのできる記録装置及びその製造方法を提供することにある。   The present invention has been made to overcome the above-described drawbacks of the prior art, and an object of the present invention is to provide a recording apparatus capable of appropriately correcting skew even when the paper size is different, and a method for manufacturing the same. There is.

上記課題を解決するために、本発明の第１の態様は、回転駆動される搬送駆動ローラと、前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送駆動ローラとの間で被記録媒体をニップする自由回転可能な搬送従動ローラと、前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送従動ローラを自由回転可能に軸支する従動ローラ支持部材と、を備えて構成された、被記録媒体を搬送する被記録媒体搬送装置であって、複数の前記従動ローラ支持部材が各々独立に変位可能に構成され、当該従動ローラ支持部材を変位させることにより、被記録媒体の搬送経路を側視して前記搬送駆動ローラの回転軸芯と前記搬送従動ローラの回転軸芯とを通る直線と、重力方向に平行な直線とのなす角度を、複数の前記従動ローラ支持部材毎に調節可能に構成されていることを特徴とする。   In order to solve the above-described problem, a first aspect of the present invention is a recording medium provided between a conveyance drive roller that is rotationally driven and a plurality of rotation drive axis directions of the conveyance drive roller. A plurality of freely driven conveyance driven rollers that nip the conveyance drive roller, and a plurality of driven roller support members that are provided in the direction of the rotation axis of the conveyance drive roller and support the conveyance driven roller so as to freely rotate. A recording medium transporting apparatus for transporting a recording medium, wherein the plurality of driven roller support members are configured to be independently displaceable, and by displacing the driven roller support members, a transport path for the recording medium is set. An angle formed by a straight line passing through the rotation axis of the conveyance driving roller and the rotation axis of the conveyance driven roller and a straight line parallel to the direction of gravity is seen for each of the plurality of driven roller support members. Characterized in that it is section configured to be capable.

本態様によれば、複数の前記従動ローラ支持部材が各々独立に変位可能に構成され、当該従動ローラ支持部材を変位させることにより、被記録媒体の搬送経路を側視して前記搬送駆動ローラの回転軸芯と前記搬送従動ローラの回転軸芯とを通る直線と、重力方向に平行な直線とのなす角度を、複数の前記従動ローラ支持部材毎に調節可能に構成されていることから、前記搬送駆動ローラと前記搬送従動ローラとの協働作用によって生じる被記録材搬送力を被記録媒体の幅方向できめ細かに調節することができ、被記録媒体のサイズが異なっても適切にスキューを補正可能な状態とすることができる。   According to this aspect, the plurality of driven roller support members are configured to be independently displaceable, and by displacing the driven roller support members, the transport drive roller of the transport drive roller is viewed from the side of the transport path of the recording medium. Since the angle formed by a straight line passing through the rotation axis and the rotation axis of the transport driven roller and a straight line parallel to the direction of gravity is adjustable for each of the plurality of driven roller support members, The recording material conveyance force generated by the cooperative action of the conveyance drive roller and the conveyance driven roller can be finely adjusted in the width direction of the recording medium, and the skew is corrected appropriately even if the size of the recording medium is different. It can be in a possible state.

本発明の第２の態様は、上記第１の態様において、前記搬送駆動ローラの軸線方向に延びるフレーム部材において、被記録媒体の搬送経路を側視して被記録媒体の搬送方向と略直交する方向に変位可能となる様に調整部材が設けられ、前記従動ローラ支持部材が、前記調整部材に、被記録媒体の搬送経路を側視して揺動可能に、且つ付勢手段によって前記搬送従動ローラが前記搬送駆動ローラに圧接する方向に付勢された状態で軸支されており、前記調整部材を変位させることにより、被記録媒体の搬送経路を側視して前記搬送駆動ローラの回転軸芯と前記搬送従動ローラの回転軸芯とを通る直線と、重力方向に平行な直線とのなす角度を調節可能に構成されていることを特徴とする。   According to a second aspect of the present invention, in the first aspect, the frame member extending in the axial direction of the transport driving roller is substantially orthogonal to the transport direction of the recording medium as seen from the side of the transport path of the recording medium. An adjustment member is provided so as to be displaceable in the direction, and the driven roller support member can be swung with respect to the adjustment member when the conveyance path of the recording medium is viewed from the side, and the conveyance driven by the urging means. The roller is pivotally supported in a state in which it is urged against the conveyance drive roller, and by rotating the adjustment member, the rotation axis of the conveyance drive roller is viewed from the side of the conveyance path of the recording medium. An angle between a straight line passing through the core and the rotation axis of the transport driven roller and a straight line parallel to the direction of gravity is adjustable.

本態様によれば、被記録媒体の搬送方向と略直交する方向に変位可能な調整部材を変位させることによって前記角度を調節可能となっているので、前記従動ローラ支持部材の変位量に対する前記角度の変化量を小さく抑えることができ、前記搬送駆動ローラと前記搬送従動ローラとの協働作用によって生じる被記録材搬送力を被記録媒体の幅方向でより一層にきめ細かに調節することができる。   According to this aspect, since the angle can be adjusted by displacing the adjustment member that can be displaced in a direction substantially orthogonal to the conveyance direction of the recording medium, the angle with respect to the displacement amount of the driven roller support member. The amount of change in the recording medium can be kept small, and the recording material conveyance force generated by the cooperative action of the conveyance drive roller and the conveyance driven roller can be adjusted more finely in the width direction of the recording medium.

本発明の第３の態様は、被記録媒体に記録を行う記録ヘッドを備えた記録装置であって、上記第１のまたは第２の態様に記載の前記被記録媒体搬送装置を備えていることを特徴とする。本態様によれば、記録装置において、上記第１のまたは第２の態様と同様な作用効果を得ることができる。   According to a third aspect of the present invention, there is provided a recording apparatus comprising a recording head for recording on a recording medium, comprising the recording medium conveying apparatus according to the first or second aspect. It is characterized by. According to this aspect, in the recording apparatus, it is possible to obtain the same effects as those of the first or second aspect.

本発明の第４の態様は、被記録媒体に記録を行う記録ヘッドと、前記記録ヘッドの上流側に設けられ、回転駆動される搬送駆動ローラと、前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送駆動ローラとの間で被記録媒体をニップする自由回転可能な搬送従動ローラと、前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送従動ローラを自由回転可能に軸支する従動ローラ支持部材と、を備えて構成される記録装置の製造方法であって、複数の前記従動ローラ支持部材が各々独立に変位可能に構成され、当該従動ローラ支持部材を変位させることにより、被記録媒体の搬送経路を側視して前記搬送駆動ローラの回転軸芯と前記搬送従動ローラの回転軸芯とを通る直線と、重力方向に平行な直線とのなす角度を、複数の前記従動ローラ支持部材毎に調節可能に構成されており、複数の前記従動ローラ支持部材に跨る幅方向寸法を有する第１の被記録媒体を１桁方向又は８０桁方向に寄せた状態で、前記搬送駆動ローラと前記搬送従動ローラによって搬送し、その際のスキュー傾向を補正する様に、複数の前記従動ローラ支持部材を変位させ且つ位置決めし、その後、前記第１の被記録媒体よりも幅方向寸法が大きいとともに、前記第１の被記録媒体搬送時と同じ桁方向に寄せた状態で更に多くの前記従動ローラ支持部材に跨る幅方向寸法を有する第２の被記録媒体を、前記搬送駆動ローラと前記搬送従動ローラによって搬送し、その際のスキュー傾向を補正する様に、前記第１の被記録媒体の搬送に係わる前記従動ローラ支持部材を除いた他の前記従動ローラ支持部材を変位させ且つ位置決めすることを特徴とする。   According to a fourth aspect of the present invention, there are provided a recording head for recording on a recording medium, a conveying drive roller provided on the upstream side of the recording head and driven to rotate, and a plurality of conveying driving rollers in the direction of the rotation axis of the conveying drive roller. A plurality of freely driven transport driven rollers that nip a recording medium with the transport drive roller, and a plurality of transport driven rollers in the direction of the rotation axis of the transport drive roller, and rotatably supporting the transport driven roller. A plurality of driven roller support members configured to be independently displaceable, and by displacing the driven roller support members, A plurality of the angles formed by a straight line passing through the rotation axis of the conveyance drive roller and the rotation axis of the conveyance driven roller as viewed from the conveyance path of the recording medium, and a straight line parallel to the direction of gravity. It is configured to be adjustable for each moving roller support member, and the first recording medium having a width-direction dimension across the plurality of driven roller support members is moved in the 1-digit direction or 80-digit direction, and the conveyance is performed. The plurality of driven roller support members are displaced and positioned so as to correct the skew tendency at the time of conveyance by the driving roller and the conveyance driven roller, and then the width direction dimension than the first recording medium. And a second recording medium having a width-direction dimension that spans more driven roller support members in a state of being moved in the same digit direction as when the first recording medium is conveyed. Other driven roller supports excluding the driven roller support member related to the conveyance of the first recording medium so as to correct the skew tendency at the time of conveyance by the conveyance driven roller. Characterized by and positioned to displace the timber.

本態様によれば、先ずサイズの小さい第１の被記録媒体を搬送してそのスキュー傾向を補正し、次いでサイズの大きい第２の被記録媒体を搬送してそのスキュー傾向を補正するので、幅方向寸法の異なる第１の被記録媒体と第２の被記録媒体のいずれを搬送する場合にも適切にスキューを補正可能な記録装置を得ることができる。   According to this aspect, the first recording medium with a small size is first conveyed to correct the skew tendency, and then the second recording medium with a large size is conveyed to correct the skew tendency. It is possible to obtain a recording apparatus capable of appropriately correcting the skew when conveying either the first recording medium or the second recording medium having different directional dimensions.

本発明の第５の態様は、被噴射媒体に液体噴射を行う液体噴射ヘッドと、前記液体噴射ヘッドの上流側に設けられ、回転駆動される搬送駆動ローラと、前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送駆動ローラとの間で被噴射媒体をニップする自由回転可能な搬送従動ローラと、前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送従動ローラを自由回転可能に軸支する従動ローラ支持部材と、を備えて構成された液体噴射装置であって、複数の前記従動ローラ支持部材が各々独立に変位可能に構成され、当該従動ローラ支持部材を変位させることにより、被噴射媒体の搬送経路を側視して前記搬送駆動ローラの回転軸芯と前記搬送従動ローラの回転軸芯とを通る直線と、重力方向に平行な直線とのなす角度を、複数の前記従動ローラ支持部材毎に調節可能に構成されていることを特徴とする。   According to a fifth aspect of the present invention, there is provided a liquid ejecting head that ejects liquid onto an ejected medium, a transport driving roller that is provided on the upstream side of the liquid ejecting head and is rotationally driven, and a rotation axis direction of the transport driving roller A plurality of freely driven transport driven rollers that nip an ejected medium with the transport drive roller, and a plurality of transport driven rollers provided in the rotation axis direction of the transport drive roller, so that the transport driven roller can freely rotate. A driven roller support member that pivotally supports the liquid ejecting apparatus, wherein the plurality of driven roller support members are configured to be independently displaceable, and by displacing the driven roller support member, A plurality of angles formed by a straight line passing through the rotation axis of the conveyance drive roller and the rotation axis of the conveyance driven roller as viewed from the conveyance path of the ejection target medium and a straight line parallel to the direction of gravity. Characterized in that it is adjustably configured for each of the driven roller support member.

以下、本発明の実施形態について図１乃至図５を参照しながら説明する。ここで、図１はプリンタ１の側断面図（用紙搬送経路の側面図）、図２は「被記録媒体搬送装置」としての搬送手段４の斜視図、図３は搬送手段４の側面図、図４は搬送手段４の拡大平面図、図５は搬送手段４全体の平面図である。
以下では先ず、図１を参照しながら、本発明に係る記録装置或いは液体噴射装置の一例としてのインクジェットプリンタ（以下「プリンタ」と言う）１の概要について説明する。尚、以下では、図１の右方向（プリンタ前方側）を用紙搬送経路の「下流側」と言い、図２の左方向を「上流側」と言うこととする。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5. Here, FIG. 1 is a side sectional view of the printer 1 (side view of the paper conveyance path), FIG. 2 is a perspective view of the conveyance means 4 as a “recording medium conveyance device”, and FIG. 3 is a side view of the conveyance means 4. FIG. 4 is an enlarged plan view of the conveying means 4, and FIG. 5 is a plan view of the entire conveying means 4.
In the following, first, an outline of an ink jet printer (hereinafter referred to as “printer”) 1 as an example of a recording apparatus or a liquid ejecting apparatus according to the present invention will be described with reference to FIG. In the following, the right direction in FIG. 1 (the front side of the printer) is referred to as “downstream side” of the sheet conveyance path, and the left direction in FIG. 2 is referred to as “upstream side”.

プリンタ１は後部に「被記録媒体」、「被噴射媒体」の一例としての記録用紙（主として単票紙：以下「用紙Ｐ」と言う）を傾斜姿勢でセット可能な給送装置２を備え、当該給送装置２から、用紙Ｐを下流側の搬送手段４へ向けて給送する。給送された用紙Ｐは搬送手段４によって下流側の記録ヘッド３６（記録手段３）へ搬送（副走査送り）され、記録が実行される。そして記録ヘッド３６によって記録の行われた用紙Ｐは、下流側の排出手段５によって装置前方へ排出される。   The printer 1 includes a feeding device 2 capable of setting a recording sheet (mainly cut sheet paper: hereinafter referred to as “sheet P”) as an example of “recording medium” and “ejection medium” in an inclined posture at the rear part, The paper P is fed from the feeding device 2 toward the conveying means 4 on the downstream side. The fed paper P is transported (sub-scanned) by the transport unit 4 to the downstream recording head 36 (recording unit 3), and recording is performed. Then, the paper P on which recording has been performed by the recording head 36 is discharged to the front of the apparatus by the discharge means 5 on the downstream side.

以下、プリンタ１の用紙搬送経路上の構成要素について更に詳説する。給送装置２は、ホッパ１１と、給送ローラ１２と、リタードローラ１３と、戻しレバー１４と、更に図示しないその他の構成要素と、を備えて構成されている。
ホッパ１１は板状体から成り、上部の揺動支点１１ａを中心に揺動可能に設けられ、揺動することにより、ホッパ１１上に傾斜姿勢に支持された用紙Ｐを給送ローラ１２に圧接させる圧接姿勢と、給送ローラ１２から離間させる離間姿勢と、を切り換える。給送ローラ１２は側面視略Ｄ形の形状を成し、その円弧部分によって圧接した最上位の用紙Ｐを下流側へ給送する。 Hereinafter, components on the paper conveyance path of the printer 1 will be described in more detail. The feeding device 2 includes a hopper 11, a feeding roller 12, a retard roller 13, a return lever 14, and other components not shown.
The hopper 11 is formed of a plate-like body, and is provided so as to be able to swing around an upper swinging fulcrum 11a. The pressure contact posture to be switched and the separation posture to be separated from the feeding roller 12 are switched. The feeding roller 12 has a substantially D shape when viewed from the side, and feeds the uppermost sheet P pressed by the arc portion to the downstream side.

給送ローラ１２は、主走査方向（用紙幅方向）において一つ設けられており、且つその位置は、図５に示す様に給送可能な最大用紙サイズ（本実施形態ではＡ４サイズ）に対し、１桁側（図５の右側）に偏倚した位置にある。従って、用紙Ｐのサイズが小さいと、給送ローラ１２は当該用紙Ｐの中央から８０桁側に偏倚した場所に位置することとなり（例えば、図５の用紙Ｐ１）、逆に用紙Ｐのサイズが大きいと、給送ローラ１２は当該用紙Ｐの中央から１桁側に偏倚した場所に位置することとなる（例えば、図５の用紙Ｐ２）。   One feeding roller 12 is provided in the main scanning direction (paper width direction), and its position is relative to the maximum paper size (A4 size in this embodiment) that can be fed as shown in FIG. It is in a position deviated to the one digit side (right side in FIG. 5). Accordingly, when the size of the paper P is small, the feeding roller 12 is positioned at a position deviated from the center of the paper P to the 80th digit side (for example, the paper P1 in FIG. 5). If it is larger, the feeding roller 12 is located at a position deviated from the center of the paper P to the one digit side (for example, the paper P2 in FIG. 5).

次に、図１に戻ってリタードローラ１３は給送ローラ１２の円弧部分と圧接可能に設けられ、且つ、所定の回転抵抗（トルク）が与えられた状態に設けられており、用紙Ｐの重送が発生せずに１枚だけ給送されている場合には、給送ローラ１３に対して従動回転する一方で、用紙Ｐが給送ローラ１２とリタードローラ１３との間に複数枚存在する場合には、回転せずに停止した状態となり、これにより用紙Ｐの重送を防止する。戻しレバー１４は、用紙Ｐの給送経路を側視して揺動可能に設けられていて、揺動することにより、重送されようとした次位以降の用紙Ｐをホッパ１１上に戻す。   Next, returning to FIG. 1, the retard roller 13 is provided so as to be able to press contact with the arc portion of the feeding roller 12 and is provided with a predetermined rotational resistance (torque). When only one sheet is fed without feeding, a plurality of sheets of paper P exist between the feeding roller 12 and the retard roller 13 while rotating following the feeding roller 13. In this case, the paper P is stopped without rotating, thereby preventing the double feeding of the paper P. The return lever 14 is provided so as to be swingable when the paper P feeding path is viewed from the side. By swinging, the return lever 14 returns the succeeding and subsequent sheets P to the hopper 11.

次に、給送装置２と搬送手段４との間には、用紙Ｐの通過を検出する検出手段（図示せず）と、用紙Ｐの給送姿勢を形成するとともに用紙Ｐの給送ローラ１２への接触を防止して搬送負荷を軽減するガイドローラ２６が設けられている。
搬送手段４は、図示しないモータによって回転駆動される搬送駆動ローラ３０と、該搬送駆動ローラ３０に圧接して従動回転する搬送従動ローラ３１とを備えて構成されている。搬送駆動ローラ３０は用紙幅方向（主走査方向）に延びる金属軸の外周面に耐摩耗性粒子がほぼ均一に分散されて成る付着層を備えて成され、搬送従動ローラ３１は外周面がエラストマ等の低摩擦材料によって成され、搬送駆動ローラ３０の軸線方向に複数（本実施形態では、６個）配設されている。 Next, a detecting means (not shown) for detecting the passage of the paper P is formed between the feeding device 2 and the transporting means 4, and a feeding posture of the paper P is formed and the paper P feeding roller 12 is formed. A guide roller 26 is provided to prevent the contact load to reduce the conveyance load.
The transport unit 4 includes a transport drive roller 30 that is rotationally driven by a motor (not shown), and a transport driven roller 31 that is driven to rotate while being pressed against the transport drive roller 30. The transport driving roller 30 is provided with an adhesion layer formed by substantially uniformly dispersing wear-resistant particles on the outer peripheral surface of a metal shaft extending in the paper width direction (main scanning direction), and the transport driven roller 31 has an outer peripheral surface on an elastomer. A plurality of (in the present embodiment, six) are provided in the axial direction of the conveyance drive roller 30.

搬送従動ローラ３１は本実施形態では紙案内上２４の下流側端部に２つ自由回転可能に軸支され、当該紙案内上２４は、本実施形態では用紙幅方向に３つ、図２或いは図５に示すように並設される。紙案内上２４は軸２４ａが調整部材２３に軸支されることで、用紙搬送経路を側視して軸２４ａを中心に揺動可能に設けられるとともに、コイルばね２５によって、搬送従動ローラ３１が搬送駆動ローラ３０に圧接する方向に付勢される。   In the present embodiment, two transport driven rollers 31 are pivotally supported at the downstream end of the paper guide top 24 so as to be freely rotatable. In the present embodiment, three paper guide tops 24 in the paper width direction are shown in FIG. As shown in FIG. The top 24 of the paper guide is provided so that the shaft 24 a is pivotally supported by the adjustment member 23, so that it can swing around the shaft 24 a as seen from the side of the paper transport path, and the transport driven roller 31 is moved by the coil spring 25. It is urged in a direction in which it comes into pressure contact with the conveyance drive roller 30.

調整部材２３は、主走査方向に延びるとともに用紙搬送方向と略直交するフレーム面を有するメインフレーム７に設けられ、コイルばね２５は、その一端がメインフレーム７に係止することで、紙案内上２４を搬送駆動ローラ３０に向けて付勢する。尚、搬送手段４については、後に詳述する。
搬送手段４に到達した用紙Ｐは、搬送駆動ローラ３０と搬送従動ローラ３１とによって挟圧された状態で搬送駆動ローラ３０が回転することにより、下流側へと副走査送りされる。 The adjustment member 23 is provided on the main frame 7 that extends in the main scanning direction and has a frame surface that is substantially orthogonal to the paper conveyance direction. The coil spring 25 is engaged with the main frame 7 at one end, so that the paper guide 24 is urged toward the conveyance drive roller 30. The transport means 4 will be described in detail later.
The paper P that has reached the transport means 4 is sub-scanned and sent to the downstream side by the rotation of the transport drive roller 30 while being sandwiched between the transport drive roller 30 and the transport driven roller 31.

搬送手段４の下流側には、インクジェット記録ヘッド（以下「記録ヘッド」と言う）３６と、当該記録ヘッド３６と対向して配置される紙案内前３７とが設けられている。記録ヘッド３６はキャリッジ３３の底部に設けられ、当該キャリッジ３３は主走査方向に延びるキャリッジガイド軸３４にガイドされながら、図示しない駆動モータによって主走査方向に往復動する様に駆動される。また、キャリッジ３３は、複数の色毎に独立したインクカートリッジ（図示せず）を搭載し、記録ヘッド３６へとインクを供給する。   An ink jet recording head (hereinafter referred to as “recording head”) 36 and a pre-paper guide 37 disposed to face the recording head 36 are provided on the downstream side of the conveying means 4. The recording head 36 is provided at the bottom of the carriage 33. The carriage 33 is driven to reciprocate in the main scanning direction by a drive motor (not shown) while being guided by a carriage guide shaft 34 extending in the main scanning direction. The carriage 33 is mounted with independent ink cartridges (not shown) for each of a plurality of colors, and supplies ink to the recording head 36.

用紙Ｐと記録ヘッド３６との距離を規定する紙案内前３７には、記録ヘッド３６と対向する面に第１リブ３８ａ、第２リブ３８ｂ、第３リブ３８ｃが形成されているとともに、インクを打ち捨てる溝３９ａ、３９ｂが形成されていて、これらを利用して用紙Ｐの端部に余白無く記録を行う所謂縁無し記録が実行される。   A first rib 38a, a second rib 38b, and a third rib 38c are formed on the surface facing the recording head 36 on the front side 37 that defines the distance between the paper P and the recording head 36, and ink is supplied. Grooves 39a and 39b to be discarded are formed, and so-called marginless recording is performed in which recording is performed without margins on the edge of the paper P by using these grooves 39a and 39b.

具体的には、例えば用紙Ｐの上端を溝３９ｂの上方に位置決めした状態で用紙Ｐの上端から外れた領域にもインクを吐出することにより、用紙Ｐの上端に縁無し記録を実行する。同様に、用紙Ｐの下端を溝３９ａの上方に位置決めした状態で用紙Ｐの下端から外れた領域にもインクを吐出することにより、用紙Ｐの下端に縁無し記録を実行する。尚、溝３９ａ、３９ｂには、インクを吸収するインク吸収材（図示せず）が配設される。   Specifically, for example, the borderless recording is performed on the upper end of the sheet P by ejecting ink to an area outside the upper end of the sheet P with the upper end of the sheet P positioned above the groove 39b. Similarly, borderless recording is performed on the lower end of the paper P by discharging ink to an area outside the lower end of the paper P with the lower end of the paper P positioned above the groove 39a. An ink absorbing material (not shown) that absorbs ink is disposed in the grooves 39a and 39b.

続いて、記録ヘッド３６の下流側には、補助ローラ４３と、排出手段５が設けられている。補助ローラ４３は、記録ヘッド３６と紙案内前３７との対向領域から排出手段５へ至る用紙搬送経路上に、用紙Ｐの記録面と接して従動回転するよう設けられることで、用紙Ｐの紙案内前３７からの浮き上がりを防止して用紙Ｐと記録ヘッド３６との距離を一定に保つ機能を果たす。   Subsequently, an auxiliary roller 43 and a discharge unit 5 are provided on the downstream side of the recording head 36. The auxiliary roller 43 is provided so as to be driven and rotated in contact with the recording surface of the paper P on the paper conveyance path from the area where the recording head 36 and the paper guide front 37 are opposed to the discharge means 5. The function of preventing the lift from the front 37 and maintaining the distance between the paper P and the recording head 36 is achieved.

排出手段５は、図示しないモータによって動力が伝達されて回転する排出駆動ローラ４１と、当該排出駆動ローラ４１に接して従動回転する排出従動ローラ４２とを備えて構成されている。記録手段３によって記録の行われた用紙Ｐは、排出駆動ローラ４１と排出従動ローラ４２とによってニップされた状態で排出駆動ローラ４１が回転駆動されることにより、装置前方（図示しないスタッカ）へ向けて排出される。   The discharge means 5 includes a discharge drive roller 41 that rotates when power is transmitted by a motor (not shown), and a discharge driven roller 42 that rotates in contact with the discharge drive roller 41. The paper P on which recording has been performed by the recording means 3 is driven forward by the discharge drive roller 41 while being nipped by the discharge drive roller 41 and the discharge driven roller 42, so that the paper P is directed toward the front of the apparatus (not shown). Discharged.

以上がプリンタ１の大略構成であり、以下図２乃至図５を参照しつつ「被記録媒体搬送装置」としての搬送手段４について詳説する。搬送手段４は、上述した搬送駆動ローラ３０と、搬送従動ローラ３１と、「従動ローラ支持部材」としての紙案内上２４と、紙案内上２４を軸支する調整部材２３と、紙案内上２４を付勢するコイルばね２５と、を備えて構成される。   The general configuration of the printer 1 has been described above, and the conveyance unit 4 as a “recording medium conveyance device” will be described in detail below with reference to FIGS. 2 to 5. The transport means 4 includes the transport drive roller 30, the transport driven roller 31, the paper guide upper 24 as a “driven roller support member”, the adjustment member 23 that pivotally supports the paper guide upper 24, and the paper guide upper 24. And a coil spring 25 for energizing.

調整部材２３は、図３に示す様に調整ビス２６によってメインフレーム７に固定される。調整部材２３において調整ビス２６を軸通させる穴２３ａは、調整ビス２６を遊挿させる様に大きめの径に形成されており、これにより調整部材２３は用紙搬送方向（図の矢印Ｂで示す方向）と略直交する方向（図の矢印Ａで示す方向）にスライド変位可能となり、即ちその固定位置を調節可能となっている。そしてこの調整部材２３は図２に示すように複数の紙案内上２４に対してそれぞれ一つずつ設けられており、即ち複数の紙案内上２４が、独立してその揺動軸２４ａの位置を変位させることができる様になっている。   The adjustment member 23 is fixed to the main frame 7 by an adjustment screw 26 as shown in FIG. A hole 23a through which the adjustment screw 26 passes through the adjustment member 23 is formed to have a large diameter so that the adjustment screw 26 can be loosely inserted, whereby the adjustment member 23 is in the paper transport direction (the direction indicated by arrow B in the figure). ) In a direction substantially orthogonal to the direction (indicated by arrow A in the figure), that is, its fixed position can be adjusted. As shown in FIG. 2, one adjustment member 23 is provided for each of the plurality of paper guide tops 24. That is, the plurality of paper guide tops 24 independently position the swing shaft 24a. It can be displaced.

図３において符号ｍで示す直線は搬送駆動ローラ３０の回転軸芯（回転軸の軸芯の位置）を通る重力方向に平行な直線であり、符号ｎで示す直線は搬送駆動ローラ３０の回転軸芯と搬送従動ローラ３１の回転軸芯とを通る直線であり、符号αは直線ｍと直線ｎとのなす角度を示している。用紙Ｐは図３の左側から搬送駆動ローラ３０と搬送従動ローラ３１との間に給送され、両ローラにニップされて図の右側（矢印Ｂ方向）へ搬送されるので、角度αが大きくなると、搬送駆動ローラ３０外周面への用紙Ｐの巻き付き角（接触面積）が大きくなり、これによって用紙搬送力が増大することになる。   In FIG. 3, a straight line indicated by a symbol m is a straight line parallel to the direction of gravity passing through the rotation axis of the conveyance drive roller 30 (position of the axis of the rotation shaft), and a straight line indicated by a symbol n is the rotation axis of the conveyance drive roller 30. This is a straight line passing through the core and the rotational axis of the transport driven roller 31, and the symbol α indicates the angle formed by the straight line m and the straight line n. Since the paper P is fed from the left side of FIG. 3 between the transport driving roller 30 and the transport driven roller 31 and is nipped by both rollers and transported to the right side (in the direction of arrow B), the angle α increases. In addition, the wrapping angle (contact area) of the paper P around the outer peripheral surface of the transport driving roller 30 is increased, thereby increasing the paper transport force.

ここで、調整部材２３は図の矢印Ａ方向に変位可能に設けられているので、調整部材２３の固定位置を矢印Ａ方向に変位させることによって、角度αを調節することができる。具体的には、図の上方向に調整部材２３を変位させると、搬送従動ローラ３１と搬送駆動ローラ３０とのニップ点は上流側（図の左側）に移動し、角度αが小さくなる。逆に、図の下方向に調整部材２３を変位させると、搬送従動ローラ３１と搬送駆動ローラ３０とのニップ点は下流側（図の右側）に移動し、角度αが大きくなる。以上により、複数の紙案内上２４毎に角度αを調整可能となっており、即ち調整部材２３の固定位置を調節することで、各々の紙案内上２４毎の用紙搬送力を調整可能となっている。   Here, since the adjustment member 23 is provided so as to be displaceable in the direction of arrow A in the figure, the angle α can be adjusted by displacing the fixing position of the adjustment member 23 in the direction of arrow A. Specifically, when the adjustment member 23 is displaced upward in the figure, the nip point between the conveyance driven roller 31 and the conveyance driving roller 30 moves to the upstream side (left side in the figure), and the angle α decreases. Conversely, when the adjustment member 23 is displaced downward in the figure, the nip point between the conveyance driven roller 31 and the conveyance drive roller 30 moves downstream (right side in the figure), and the angle α increases. As described above, the angle α can be adjusted for each of the plurality of paper guides 24. That is, by adjusting the fixing position of the adjusting member 23, the sheet conveying force for each of the paper guides 24 can be adjusted. ing.

続いて、図３においてコイルばね２５のコイル部２５ａから上方に延びる係止端２５ｃは、メインフレーム７に形成されたばね係止部８に係止し、コイル部２５ａから搬送従動ローラ３１に向かって延びる係止端２５ｂは、２つの搬送従動ローラ３１の間で、紙案内上２４の上面に圧接して搬送従動ローラ３１を搬送駆動ローラ３０に向けて押圧する。尚、コイル部２５ａは、その内部を挿通する軸等によって構成される保持手段により、その位置が保持される様になっている（図１乃至図５においては図示せず）。   3, the locking end 25c extending upward from the coil portion 25a of the coil spring 25 is locked to the spring locking portion 8 formed on the main frame 7, and from the coil portion 25a toward the transport driven roller 31. The extending locking end 25 b is pressed against the upper surface of the paper guide upper 24 between the two transport driven rollers 31 and presses the transport driven roller 31 toward the transport driving roller 30. The position of the coil portion 25a is held by holding means constituted by a shaft or the like inserted through the coil portion 25a (not shown in FIGS. 1 to 5).

ここで、このコイルばね２５によって紙案内上２４を押圧する押圧荷重は、係止端２５ｃを係止させる位置を切り換えることで調節可能となっている。具体的には、図４に示す様にばね係止部８には複数のフック部（８ａ、８ｂ、８ｃ）が形成されており、図３において仮想線で示すように、係止端２５ｃを係止させる位置を切り換えることができる様になっている。これにより、例えば係止端２５ｃを図３の実線で示す位置（フック部８ａに係止するときの位置）からフック部８ｃに係止する位置に切り換えると、押圧力が弱まり、これによっても搬送駆動ローラ３０と搬送従動ローラ３１とによる用紙搬送力を、各紙案内上２４毎に、個別に調節可能となっている。   Here, the pressing load pressing the paper guide 24 by the coil spring 25 can be adjusted by switching the position where the locking end 25c is locked. Specifically, as shown in FIG. 4, the spring locking portion 8 is formed with a plurality of hook portions (8a, 8b, 8c). As shown by phantom lines in FIG. The position to be locked can be switched. Thus, for example, when the locking end 25c is switched from the position indicated by the solid line in FIG. 3 (the position when locked to the hook portion 8a) to the position locked to the hook portion 8c, the pressing force is weakened, which also causes conveyance. The sheet conveyance force by the driving roller 30 and the conveyance driven roller 31 can be individually adjusted for each sheet guide 24.

尚係止部２５ｃの係止位置切り換え（コイルばね２５のばね力調整）による用紙搬送力の調整は、調整部材２３を変位させることによる用紙搬送力の調整よりも感度が低く、従って調整部材２３を変位させることで用紙搬送力を大きく変化させ、その後、係止部２５ｃの係止位置切り換えを行い、用紙搬送力を微調整することも好適である。   The adjustment of the sheet conveying force by switching the locking position of the locking portion 25c (the adjustment of the spring force of the coil spring 25) is less sensitive than the adjustment of the sheet conveying force by displacing the adjusting member 23. It is also preferable to finely adjust the paper transport force by changing the position of the paper to greatly change the paper transport force and then switching the locking position of the locking portion 25c.

尚、コイル部２５ａは、図３に示す様に非密着巻きで形成することが望ましい。より詳しくは、仮に密着巻きによってコイル部２５ａを形成すると、コイル部内における摩擦損失の影響が大きくなり、紙案内上２４を揺動させた際の荷重変動が大きくなる。これにより、用紙厚が変化した際の荷重変動が大きくなり、理想的な押圧荷重を維持することが困難となる。そこで、コイル部２５ａを非密着巻きによって形成することで、コイル部内における摩擦損失の影響を無くすことができ、紙案内上２４を揺動させた際の荷重変動を小さく抑えることができ、これによって用紙厚が仮に大きく変化しても、理想的な押圧荷重の範囲内から外れないようにすることができる。   The coil portion 25a is preferably formed by non-contact winding as shown in FIG. More specifically, if the coil portion 25a is formed by tight winding, the influence of friction loss in the coil portion is increased, and the load fluctuation when the paper guide top 24 is swung is increased. As a result, the load fluctuation when the paper thickness changes increases, making it difficult to maintain an ideal pressing load. Therefore, by forming the coil portion 25a by non-contact winding, it is possible to eliminate the influence of friction loss in the coil portion, and to suppress the load fluctuation when the paper guide top 24 is swung, thereby reducing Even if the paper thickness changes greatly, it is possible to prevent it from falling out of the ideal pressing load range.

次に、調整部材２３を利用したスキューの補正方法について説明する。尚、本実施形態では紙案内上２４は搬送駆動ローラ３０の軸線方向に複数（３つ）設けられているので、１桁側（図２、図５において右方向）のものを図２及び図５において符号２４Ａで示し、８０桁側（図２、図５において左方向）へ向かって順に符号２５Ｂ、２５Ｃで示すこととする（但し、区別する必要のないときは単に「紙案内上２４」と言う）。また、紙案内上２４Ａに軸支される搬送従動ローラ３１を符号「３１Ａ」で、以下同様に紙案内上２４Ｂに軸支されるものを「３１Ｂ」、紙案内上２４Ｃに軸支されるものを「３１Ｃ」で、それぞれ示すこととする。   Next, a skew correction method using the adjustment member 23 will be described. In this embodiment, a plurality (three) of the paper guide tops 24 are provided in the axial direction of the transport driving roller 30. Therefore, the one on the one digit side (right direction in FIGS. 2 and 5) is shown in FIGS. 5 is indicated by reference numeral 24A, and is sequentially indicated by reference numerals 25B and 25C toward the 80th digit side (leftward in FIGS. 2 and 5). Say). In addition, the conveyance driven roller 31 pivotally supported on the paper guide top 24A is denoted by reference numeral "31A", and similarly, the one supported on the paper guide top 24B is "31B", and is supported on the paper guide top 24C. Are indicated by “31C”, respectively.

図５において符号Ｐ１は「第１の被記録媒体」の一例としての４×６版写真用紙サイズの用紙を示しており、符号Ｐ２は「第２の被記録媒体」の一例としてのＡ４判サイズの用紙を示している。全ての用紙は１桁側基準で（１桁側に寄せた状態で）搬送され、図示するように用紙Ｐ１は２つの紙案内部材２４Ａ、２４Ｂに跨る幅方向寸法を有していて、３つの搬送従動ローラ（３１Ａ、３１Ａ、３１Ｂ）によって押圧されることとなる。また、用紙Ｐ１よりも幅方向寸法が大きい用紙Ｐ２は、全ての紙案内部材２４Ａ、２４Ｂ、２４Ｃに跨る幅方向寸法を有していて、全ての搬送従動ローラ３１によって押圧されることとなる。   In FIG. 5, reference numeral P1 indicates a 4 × 6 photographic paper size as an example of the “first recording medium”, and reference numeral P2 indicates an A4 size as an example of the “second recording medium”. Shows the paper. All the sheets are conveyed on the basis of the one-digit side (in a state where they are close to the one-digit side), and as shown in the drawing, the sheet P1 has a width dimension across the two sheet guide members 24A and 24B. It is pressed by the transport driven rollers (31A, 31A, 31B). Further, the paper P2 having a width dimension larger than that of the paper P1 has a width dimension across all the paper guide members 24A, 24B, and 24C, and is pressed by all the transport driven rollers 31.

以上の構成を備えたプリンタ１の組立時においてスキューの補正を行う場合、先ず用紙Ｐ１を搬送し、その際のスキュー傾向を補正する様に、紙案内上２４Ａ、２４Ｂを変位させ且つ位置決めする。例えば、紙案内上２４Ａを基準にして、紙案内上２４Ｂを軸支する調整部材２３を変位させて、紙案内上２４Ｂのみを変位させ且つ位置決めする。図５において符号ＣＡは搬送従動ローラ３１Ａ、３１Ａの回転軸線を示しており、符号ＣＢは搬送従動ローラ３１Ｂ、３１Ｂの回転軸線を示している。 When correcting the skew when assembling the printer 1 having the above configuration, the paper P1 is first transported, and the paper guides 24A and 24B are displaced and positioned so as to correct the skew tendency at that time. For example, the adjustment member 23 that pivotally supports the paper guide top 24B is displaced with respect to the paper guide top 24A, and only the paper guide top 24B is displaced and positioned. The code C A 5 shows the axis of rotation of the transport driven rollers 31A, 31A, reference numeral C B represents the axis of rotation of the follower roller 31B, 31B.

ここで、用紙Ｐ１に対しては、給送ローラ１２が８０桁側に偏倚しているので、当該用紙Ｐ１には１桁側が先行する様なスキュー傾向が生じる（給送ローラ１２とリタードローラ１３とによって用紙がニップされ、これが搬送負荷となる為）。よってこの場合、搬送従動ローラ３１Ｂの回転軸線ＣＢを、回転軸線ＣＡに対しやや下流側に設定する（図３の角度αを大きくする）。これにより、搬送従動ローラ３１Ｂによる用紙Ｐ１の用紙搬送力が増大し、８０桁側が先行する傾向が付与されて、専ら給送ローラ１２によって生じる１桁側先行スキューが補正される。 Here, since the feeding roller 12 is biased to the 80th digit side with respect to the paper P1, a skew tendency occurs such that the first digit side precedes the paper P1 (the feeding roller 12 and the retard roller 13). Nips the paper and this becomes a transport load). Therefore, in this case, the rotation axis C B of the transport driven roller 31B, slightly set downstream (to increase the angle α in Fig. 3) with respect to the rotation axis C A. As a result, the paper conveyance force of the paper P1 by the conveyance driven roller 31B is increased, and the tendency of leading the 80th digit side is given, and the one-digit side leading skew caused solely by the feeding roller 12 is corrected.

次いで、用紙Ｐ２を搬送し、その際のスキュー傾向を補正する様に、調整部材２３によって紙案内上２４Ｃのみを変位させ且つ位置決めする。即ち、既に調整した紙案内上２４Ａ、２４Ｂ（用紙Ｐ１と係わる紙案内上２４）はそのままで、用紙Ｐ２のみと係わる紙案内上２４Ｃのみを変位させる。   Next, the paper P2 is conveyed, and only the upper 24C of the paper guide is displaced and positioned by the adjusting member 23 so as to correct the skew tendency at that time. That is, the paper guide tops 24A and 24B (the paper guide top 24 related to the paper P1) that have already been adjusted are left as they are, and only the paper guide top 24C related only to the paper P2 is displaced.

ここで、用紙Ｐ２に対しては、給送ローラ１２が１桁側に偏倚しているので、当該用紙Ｐ２には８０桁側が先行する様なスキュー傾向が生じる。よってこの場合、搬送従動ローラ３１Ｃ、３１Ｃの回転軸線ＣＣを、回転軸線ＣＡに対しやや上流側に設定する（図３の角度αを小さくする）。これにより、搬送従動ローラ３１Ｃ、３１Ｃによる用紙Ｐ２の用紙搬送力が小さくなり、１桁側が先行する傾向が付与されて、専ら給送ローラ１２によって生じる８０桁側先行スキューが補正される。 Here, since the feeding roller 12 is biased to the first digit side with respect to the paper P2, the skew tendency that the 80th digit side precedes the paper P2. Therefore, in this case, the transport driven roller 31C, the rotation axis C C of 31C, slightly set on the upstream side (to reduce the angle α in Fig. 3) with respect to the rotation axis C A. As a result, the paper conveyance force of the paper P2 by the conveyance driven rollers 31C and 31C is reduced, and the tendency of leading one digit side is given, and the 80 digit leading skew generated exclusively by the feeding roller 12 is corrected.

以上のように、複数の紙案内上２４がそれぞれ独立して変位可能に構成され、サイズの小さい用紙から順にスキュー傾向を補正する様に紙案内上２４の固定位置が調整されるので、用紙サイズに係わらず、適切にスキューを補正することが可能となる。尚、上記実施形態では２種類の用紙Ｐ１、Ｐ２について説明したが、更に多くの種類の用紙に対して同様にスキューを補正し、より多くのサイズの用紙に対してスキューが補正されるように構成することもできる。   As described above, the plurality of paper guide tops 24 are configured to be independently displaceable, and the fixed position of the paper guide top 24 is adjusted so as to correct the skew tendency in order from the smallest paper size. Regardless of this, the skew can be appropriately corrected. In the above embodiment, two types of papers P1 and P2 have been described. However, the skew is corrected in the same manner for more types of paper, and the skew is corrected for more sizes of paper. It can also be configured.

本発明に係るプリンタの側断面図。1 is a side sectional view of a printer according to the present invention. 本発明に係る搬送手段の斜視図。The perspective view of the conveyance means which concerns on this invention. 本発明に係る搬送手段の側面図。The side view of the conveyance means which concerns on this invention. 本発明に係る搬送手段の拡大平面図。The enlarged plan view of the conveyance means which concerns on this invention. 本発明に係る搬送手段全体の平面図。The top view of the whole conveying means which concerns on this invention.

符号の説明Explanation of symbols

１ インクジェットプリンタ、２ 給送装置、３ 記録手段、４ 搬送手段、５ 排出手段、７ メインフレーム、８ ばね係止部、１１ ホッパ、１２ 給送ローラ、１３ リタードローラ、１４ 戻しレバー、２３ 調整部材、２４ 紙案内上、２５ コイルばね、２６ 調整ビス、３０ 搬送駆動ローラ、３１ 搬送従動ローラ、３３ キャリッジ、３４ キャリッジガイド軸、３６ 記録ヘッド、３７ 紙案内前、３８ａ〜３８ｃ リブ、３９ａ、３９ｂ 溝、４１ 排出駆動ローラ、４２ 排出従動ローラ、４３ ガイドローラ、Ｐ、Ｐ１、Ｐ２ 記録用紙 DESCRIPTION OF SYMBOLS 1 Inkjet printer, 2 Feeding device, 3 Recording means, 4 Conveying means, 5 Discharge means, 7 Main frame, 8 Spring latching part, 11 Hopper, 12 Feeding roller, 13 Retarding roller, 14 Return lever, 23 Adjustment member 24 On the paper guide, 25 Coil spring, 26 Adjustment screw, 30 Transport drive roller, 31 Transport driven roller, 33 Carriage, 34 Carriage guide shaft, 36 Recording head, 37 Before paper guide, 38a-38c Rib, 39a, 39b Groove 41 discharge driving roller, 42 discharge driven roller, 43 guide roller, P, P1, P2 recording paper

Claims (5)

回転駆動される搬送駆動ローラと、
前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送駆動ローラとの間で被記録媒体をニップする自由回転可能な搬送従動ローラと、
前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送従動ローラを自由回転可能に軸支する従動ローラ支持部材と、を備えて構成された、被記録媒体を搬送する被記録媒体搬送装置であって、
複数の前記従動ローラ支持部材が各々独立に変位可能に構成され、当該従動ローラ支持部材を変位させることにより、被記録媒体の搬送経路を側視して前記搬送駆動ローラの回転軸芯と前記搬送従動ローラの回転軸芯とを通る直線と、重力方向に平行な直線とのなす角度を、複数の前記従動ローラ支持部材毎に調節可能に構成されている、
ことを特徴とする被記録媒体搬送装置。 A transport drive roller that is driven to rotate;
A plurality of transport driven rollers which are provided in the rotation axis direction of the transport drive roller and are freely rotatable to nip a recording medium with the transport drive roller;
A recording medium transporting device for transporting a recording medium, comprising a plurality of driven roller support members provided in the direction of the rotation axis of the transport driving roller and supporting the transport driven roller so as to freely rotate; There,
The plurality of driven roller support members are configured to be independently displaceable, and by displacing the driven roller support members, the rotation axis of the transport driving roller and the transport are viewed from the side of the transport path of the recording medium. An angle formed by a straight line passing through the rotational axis of the driven roller and a straight line parallel to the direction of gravity is configured to be adjustable for each of the plurality of driven roller support members.
A recording medium conveying apparatus characterized by the above. 請求項１において、前記搬送駆動ローラの軸線方向に延びるフレーム部材において、被記録媒体の搬送経路を側視して被記録媒体の搬送方向と略直交する方向に変位可能となる様に調整部材が設けられ、
前記従動ローラ支持部材が、前記調整部材に、被記録媒体の搬送経路を側視して揺動可能に、且つ付勢手段によって前記搬送従動ローラが前記搬送駆動ローラに圧接する方向に付勢された状態で軸支されており、
前記調整部材を変位させることにより、被記録媒体の搬送経路を側視して前記搬送駆動ローラの回転軸芯と前記搬送従動ローラの回転軸芯とを通る直線と、重力方向に平行な直線とのなす角度を調節可能に構成されている、
ことを特徴とする被記録媒体搬送装置。 2. The frame member according to claim 1, wherein the adjustment member is displaceable in a direction substantially orthogonal to the recording medium conveyance direction when the recording medium conveyance path is viewed from the side in the frame member extending in the axial direction of the conveyance driving roller. Provided,
The driven roller support member is urged by the adjustment member so as to swing when viewed from the conveyance path of the recording medium, and is urged by an urging unit in a direction in which the conveyance driven roller is pressed against the conveyance driving roller. It is supported in the state
By displacing the adjustment member, a straight line passing through the rotation axis of the conveyance drive roller and the rotation axis of the conveyance driven roller as viewed from the conveyance path of the recording medium, and a straight line parallel to the gravity direction It is configured to be able to adjust the angle formed by
A recording medium conveying apparatus characterized by the above. 被記録媒体に記録を行う記録ヘッドを備えた記録装置であって、請求項１または２に記載の前記被記録媒体搬送装置を備えていることを特徴とする記録装置。   A recording apparatus comprising a recording head for recording on a recording medium, the recording apparatus comprising the recording medium conveying apparatus according to claim 1. 被記録媒体に記録を行う記録ヘッドと、
前記記録ヘッドの上流側に設けられ、回転駆動される搬送駆動ローラと、
前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送駆動ローラとの間で被記録媒体をニップする自由回転可能な搬送従動ローラと、
前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送従動ローラを自由回転可能に軸支する従動ローラ支持部材と、を備えて構成される記録装置の製造方法であって、
複数の前記従動ローラ支持部材が各々独立に変位可能に構成され、当該従動ローラ支持部材を変位させることにより、被記録媒体の搬送経路を側視して前記搬送駆動ローラの回転軸芯と前記搬送従動ローラの回転軸芯とを通る直線と、重力方向に平行な直線とのなす角度を、複数の前記従動ローラ支持部材毎に調節可能に構成されており、
複数の前記従動ローラ支持部材に跨る幅方向寸法を有する第１の被記録媒体を１桁方向又は８０桁方向に寄せた状態で、前記搬送駆動ローラと前記搬送従動ローラによって搬送し、その際のスキュー傾向を補正する様に、複数の前記従動ローラ支持部材を変位させ且つ位置決めし、
その後、前記第１の被記録媒体よりも幅方向寸法が大きいとともに、前記第１の被記録媒体搬送時と同じ桁方向に寄せた状態で更に多くの前記従動ローラ支持部材に跨る幅方向寸法を有する第２の被記録媒体を、前記搬送駆動ローラと前記搬送従動ローラによって搬送し、その際のスキュー傾向を補正する様に、前記第１の被記録媒体の搬送に係わる前記従動ローラ支持部材を除いた他の前記従動ローラ支持部材を変位させ且つ位置決めする、
ことを特徴とする記録装置の製造方法。 A recording head for recording on a recording medium;
A conveyance driving roller provided on the upstream side of the recording head and driven to rotate;
A plurality of transport driven rollers which are provided in the rotation axis direction of the transport drive roller and are freely rotatable to nip a recording medium with the transport drive roller;
A plurality of driven drive rollers provided in the rotational axis direction of the transport drive roller, and a driven roller support member that pivotally supports the transport driven roller so as to be freely rotatable;
The plurality of driven roller support members are configured to be independently displaceable, and by displacing the driven roller support members, the rotation axis of the transport driving roller and the transport are viewed from the side of the transport path of the recording medium. An angle formed by a straight line passing through the rotational axis of the driven roller and a straight line parallel to the direction of gravity is configured to be adjustable for each of the plurality of driven roller support members,
The first recording medium having a width dimension across the plurality of driven roller support members is conveyed by the conveyance driving roller and the conveyance driven roller in a state where the first recording medium is moved in the 1-digit direction or the 80-digit direction. Displacing and positioning the plurality of driven roller support members to correct skew tendency;
Thereafter, the width-direction dimension is larger than that of the first recording medium, and the width-direction dimension over the driven roller support members is increased in the state where the first recording medium is transported in the same digit direction. The driven recording roller supporting member related to the conveyance of the first recording medium is arranged so that the second recording medium having the conveyance medium is conveyed by the conveyance driving roller and the conveyance driven roller, and the skew tendency at that time is corrected. Displacing and positioning the other driven roller support member removed
A method of manufacturing a recording apparatus. 被噴射媒体に液体噴射を行う液体噴射ヘッドと、
前記液体噴射ヘッドの上流側に設けられ、回転駆動される搬送駆動ローラと、
前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送駆動ローラとの間で被噴射媒体をニップする自由回転可能な搬送従動ローラと、
前記搬送駆動ローラの回転軸線方向に複数設けられ、前記搬送従動ローラを自由回転可能に軸支する従動ローラ支持部材と、を備えて構成された液体噴射装置であって、
複数の前記従動ローラ支持部材が各々独立に変位可能に構成され、当該従動ローラ支持部材を変位させることにより、被噴射媒体の搬送経路を側視して前記搬送駆動ローラの回転軸芯と前記搬送従動ローラの回転軸芯とを通る直線と、重力方向に平行な直線とのなす角度を、複数の前記従動ローラ支持部材毎に調節可能に構成されている、
ことを特徴とする液体噴射装置。 A liquid ejecting head for ejecting liquid onto the ejected medium;
A conveyance drive roller provided on the upstream side of the liquid jet head and driven to rotate;
A plurality of transport driven rollers which are provided in the direction of the rotation axis of the transport drive roller and are freely rotatable to nip an ejected medium with the transport drive roller;
A liquid ejecting apparatus comprising a plurality of driven driving roller support members which are provided in a rotation axis direction of the transport driving roller and support the transport driven roller so as to freely rotate;
The plurality of driven roller support members are configured to be independently displaceable, and by displacing the driven roller support members, the rotation axis of the transport drive roller and the transport are viewed from the side of the transport path of the ejected medium. An angle formed by a straight line passing through the rotational axis of the driven roller and a straight line parallel to the direction of gravity is configured to be adjustable for each of the plurality of driven roller support members.
A liquid ejecting apparatus.
JP2006090993A 2006-03-29 2006-03-29 RECORDED MEDIUM CONVEYING DEVICE, RECORDING DEVICE, RECORDING DEVICE MANUFACTURING METHOD, LIQUID EJECTING DEVICE Expired - Fee Related JP4561999B2 (en)

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CN102114734B (en) * 2009-12-31 2012-11-14 深圳市润天智数字设备股份有限公司 Media feed device and printer
JP2014189403A (en) * 2013-03-28 2014-10-06 Seiko Epson Corp Recording apparatus

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JP3142147B2 (en) * 1991-06-13 2001-03-07 セイコーエプソン株式会社 Printer paper feed mechanism
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JPS649484A (en) * 1987-06-30 1989-01-12 Minolta Camera Kk Fixing device
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CN102114734B (en) * 2009-12-31 2012-11-14 深圳市润天智数字设备股份有限公司 Media feed device and printer
JP2014189403A (en) * 2013-03-28 2014-10-06 Seiko Epson Corp Recording apparatus

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