JPH10245143A - Ink jet recording device - Google Patents
Ink jet recording deviceInfo
- Publication number
- JPH10245143A JPH10245143A JP9012699A JP1269997A JPH10245143A JP H10245143 A JPH10245143 A JP H10245143A JP 9012699 A JP9012699 A JP 9012699A JP 1269997 A JP1269997 A JP 1269997A JP H10245143 A JPH10245143 A JP H10245143A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- transport
- roll
- conveying
- ink jet
- 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
- Ink Jet (AREA)
- Handling Of Cut Paper (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、インクジェット記
録装置に関する。詳しくは、印字済記録媒体を搬送ロー
ルと押圧体（例えば拍車）とにより狭持搬送して、記録
媒体受け部へ排紙する構成のインクジェット記録媒体に
関する。[0001] The present invention relates to an ink jet recording apparatus. More specifically, the present invention relates to an inkjet recording medium having a configuration in which a printed recording medium is nipped and transported by a transport roll and a pressing body (for example, a spur) and discharged to a recording medium receiving unit.
【０００２】[0002]
【従来の技術】印字済みの記録媒体を用紙受け部に排出
する際に、インク汚れを防止して排出する手段として、
例えば、特開平７−６１０７２号公報には、記録媒体を
用紙受部に案内する記録媒体ガイド面と、この記録媒体
ガイド面よりローラ上端が突出するように配設され記録
媒体を記録媒体受け部へ送り付勢可能な排紙ローラと押
圧体とを含んでなり、押圧体と協働して送り付勢する印
字済記録媒体を送り方向と直交する方向に全体的に湾曲
させ、記録媒体が記録媒体受け部に排紙されるときに自
重により垂れ下がることがないようにする技術が開示さ
れている。2. Description of the Related Art When a printed recording medium is discharged to a paper receiving portion, as a means for discharging while preventing ink contamination,
For example, Japanese Patent Application Laid-Open No. 7-61072 discloses a recording medium guide surface for guiding a recording medium to a sheet receiving portion, and a recording medium receiving portion which is disposed so that the upper end of a roller protrudes from the recording medium guide surface. A discharge roller and a pressing body capable of being fed to and urged, and the printed recording medium to be fed and urged in cooperation with the pressing body is entirely curved in a direction orthogonal to the feeding direction, so that the recording medium is There has been disclosed a technique for preventing the paper from hanging down by its own weight when the paper is discharged to a recording medium receiving portion.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記の開示
されているインクジェット記録装置では、既に用紙受け
部に収容されている先の印字済み記録用紙との接触によ
るインク汚れを防止することを目的として、排紙ローラ
上端を記録媒体ガイド面より突出させたているため、反
面記録エリアにおける記録媒体のインク汚れに対する対
策が成されていなかった。すなわち、この種の排紙にお
いては記録媒体の進行方向先端部分が上昇させられるた
め、記録媒体が記録媒体ガイド面から浮き上がり、最悪
時は印字ヘッドと擦れて記録媒体の記録面が汚れる等、
印字の品質を低下させてしまう欠点があった。By the way, the ink jet recording apparatus disclosed above aims at preventing ink stains due to contact with the previously printed recording paper already stored in the paper receiving portion. On the other hand, since the upper end of the paper discharge roller protrudes from the recording medium guide surface, no countermeasure has been taken against ink contamination of the recording medium in the recording area. That is, in this type of paper ejection, the leading end portion of the recording medium in the traveling direction is raised, so that the recording medium rises from the recording medium guide surface, and in the worst case, the recording surface of the recording medium is rubbed by being rubbed with the print head.
There is a disadvantage that the quality of printing is reduced.
【０００４】そこでこの発明は前記事情に鑑み、種々の
印字済記録媒体のインク汚れを防止すると共に印字品質
の低下を防ぎ、かつ記録媒体受け部に円滑に排紙するこ
とができるインクジェット記録装置を提供するものであ
る。In view of the above circumstances, the present invention provides an ink jet recording apparatus capable of preventing ink stains on various printed recording media, preventing print quality from deteriorating, and smoothly discharging paper to a recording medium receiving portion. To provide.
【０００５】[0005]
【課題を解決するための手段】本発明に係るインクジェ
ット記録装置は、記録済の記録媒体を記録受け部に案内
する記録媒体ガイド面と、この記録媒体ガイド面と記録
媒体の搬送面の高さを同一とする第１の搬送手段（搬送
ロールと搬送ロールに記録媒体を押圧する押圧体とより
なる）と、この記録媒体ガイド面および第１の搬送手段
の搬送面より搬送ローラ上端が突出するように配設さ
れ、記録媒体を記録媒体受け部へ送り付勢可能な第２の
搬送手段とを備え、第２の搬送手段は搬送ロールと押圧
体とが協働して記録媒体の送り方向を印字ヘッド方向に
上向きに付勢すると共に、記録済の記録媒体を送り方向
と直交する方向に全体的に湾曲させる構成を具備する。An ink jet recording apparatus according to the present invention has a recording medium guide surface for guiding a recorded recording medium to a recording receiving portion, and a height of the recording medium guide surface and a conveying surface of the recording medium. And a first conveying means (consisting of a conveying roll and a pressing body for pressing the recording medium against the conveying roll), and an upper end of the conveying roller protruding from the recording medium guide surface and the conveying surface of the first conveying means. And a second conveying means capable of feeding and biasing the recording medium to the recording medium receiving portion, wherein the second conveying means cooperates with the conveying roll and the pressing body in the feeding direction of the recording medium. And upwardly biasing the recording medium in the direction of the print head, and bending the recorded recording medium as a whole in a direction perpendicular to the feeding direction.
【０００６】上記構成による本発明のインクジェット記
録装置は、印字ヘッドにより印字された記録媒体（印字
済媒体）は、記録媒体ガイド面と高さを同一にする第１
の搬送手段によって挾持され印字ヘッドとの間隔を一定
に維持しながら第２の搬送手段に送られる。第２の搬送
手段ではさらに記録媒体を挾持して記録媒体受け部に排
紙される。この際、印字済の記録媒体は搬送方向が印字
ヘッド方向上向きとなり、かつ第２の搬送ロールのテー
パ形状に沿って送り方向と直交する方向（記録媒体幅方
向）に全体的に湾曲される。この様に、印字済の記録媒
体は、上向きに、かつ記録媒体幅方向に全体的に湾曲さ
れるので記録媒体の断面二次モーメントが増加し、曲げ
に対する抵抗力が格段に増大する。従って高濃度印字が
なされた薄い記録媒体であったとしても記録媒体先端が
自重により垂れ下がった状態で記録媒体受け部に排紙さ
れるようなことはなく、既に記録媒体受け部に収容され
ている先の印字済記録媒体の記録面を滑走することなく
接触するまでの時間を長びかせて排紙することができ、
印字領域における印字ヘッドへの接触によるインク汚
れ、および排紙時のインク汚れが阻止できる。[0006] In the ink jet recording apparatus of the present invention having the above configuration, the recording medium (printed medium) printed by the print head has the same height as the recording medium guide surface.
Is transported to the second transport means while maintaining a constant distance from the print head. In the second conveying means, the recording medium is further nipped and discharged to the recording medium receiving portion. At this time, the printed recording medium is entirely curved in the direction perpendicular to the feed direction (recording medium width direction) along the tapered shape of the second transport roll, with the transport direction facing upward in the print head direction. As described above, the printed recording medium is bent upward and in the width direction of the recording medium as a whole, so that the second moment of area of the recording medium is increased and the resistance to bending is significantly increased. Therefore, even if the recording medium is a thin recording medium on which high-density printing is performed, the recording medium is not discharged to the recording medium receiving portion in a state where the leading end of the recording medium hangs down by its own weight, and is already housed in the recording medium receiving portion. The paper can be ejected with a longer time until it comes into contact without sliding on the recording surface of the previous printed recording medium,
Ink stains due to contact with the print head in the print area and ink stains at the time of paper discharge can be prevented.
【０００７】[0007]
【発明の実施の形態】本発明の実施の形態を図面を参照
して説明する。図１、図２および図３は本発明を適用し
たインクジェット記録装置の構成を示すものである。記
録ヘッド１０の上流側に配設される記録媒体Ｐの供給装
置３０は供給ロール３１と加圧ロール３５により構成さ
れ、供給装置３０に挾持されて供給される記録媒体Ｐ
は、記録媒体ガイド２０に案内されて進行途上、記録ヘ
ッド１０から滴下するインク１５により印字が実行され
る。印字すみの記録媒体Ｐは記録ヘッド１０の下流側に
配設される第１の搬送装置４０に挾持されて下流側に進
行し、さらに第２の搬送装置５０に挾持されて矢印Ｘで
示す排出側に排出される。Embodiments of the present invention will be described with reference to the drawings. 1, 2 and 3 show the configuration of an ink jet recording apparatus to which the present invention is applied. The supply device 30 for the recording medium P disposed upstream of the recording head 10 includes a supply roll 31 and a pressure roll 35, and the recording medium P is supplied while being sandwiched by the supply device 30.
Is printed by the ink 15 dropped from the recording head 10 while being guided by the recording medium guide 20. The recording medium P in which the printing has been completed is clamped by the first transporting device 40 disposed downstream of the recording head 10 and advances downstream. Further, the recording medium P is clamped by the second transporting device 50 and discharged by an arrow X. Discharged to the side.
【０００８】第１の搬送装置４０は記録媒体Ｐの搬送面
を記録媒体ガイド２０のガイド面と同一平面とする第１
の搬送ロール４１と、搬送ロール４１に圧接するように
配設される第１の押圧体４４とよりなる。第１の搬送ロ
ール４１は回転中心位置Ｃ2を供給ロール３１の回転中
心位置Ｃ1と同一水平位置とする回転軸４５に配設する
複数個のロールよりなる。この図面に示す形態では７個
の搬送ロール４１が配設されている。各搬送ロール４１
は半径γ1とする同一径を有し、７個の搬送ロール４１
のロール上面は記録媒体ガイド２０と同一平面となって
いる。第１の押圧体４４は各第１の搬送ロール４１に接
触して配設される。押圧体４４は例えば拍車よりなり、
第１の搬送ロール４１に対応した位置に７個配設され
る。各押圧体４４、５５はハウジングに取り付けられた
支持部材６０に固着される。The first transport device 40 makes the transport surface of the recording medium P flush with the guide surface of the recording medium guide 20.
And a first pressing body 44 disposed so as to be in pressure contact with the transport roll 41. First transport roll 41 consists of a plurality of rolls arranged on the rotary shaft 45 to the rotation center position C 2 and the rotation center position C 1 and the same horizontal position of the supply roll 31. In the embodiment shown in this drawing, seven transport rolls 41 are provided. Each transport roll 41
Have the same diameter and radius gamma 1 are seven transport roll 41
The roll upper surface is flush with the recording medium guide 20. The first pressing members 44 are disposed in contact with the respective first transport rolls 41. The pressing body 44 is made of, for example, a spur,
Seven pieces are provided at positions corresponding to the first transport rolls 41. Each pressing body 44, 55 is fixed to a supporting member 60 attached to the housing.
【０００９】第２の搬送装置５０は第１の搬送装置４０
の下流側に配設され、第２の搬送ロール５１と、第２の
搬送ロール５１に圧接して配設される第２の押圧体５５
とで構成される。第２の搬送ロール５１は回転軸５３に
配設する２個のロールよりなる。第２の搬送ロール５１
の回転中心位置Ｃ3は第１の搬送装置４０の回転中心位
置Ｃ2と同一水平位置に配設される。第２の搬送ロール
５３は一端部をロール径を大きくした太径部５１３と
し、他端部をロール径を小さくした細径部５１５とした
テーパ形状としている。そして、２個の第２の搬送ロー
ル５３の細径部５１５を対向させて回転軸５３に配設さ
れている。ここで、第２の搬送ロール５１の細径部５１
５のロール半径γ3は第１の搬送ロール４１のロール半
径γ1より大きく設定されている。このように構成され
る第２の搬送装置５０は、記録媒体ガイド２０の面より
ロール端部で寸法β1、ロール中央部分で寸法β2突出し
ている。例えば、第２の搬送ロール５１の細径部５１５
のロール半径γ3を、第１の搬送ロール４１のロール半
径γ1より約１ｍｍ大きく（ロール半径γ3ーロール半径
γ1＝１）、太径部５１３は第１の搬送ロール４１のロ
ール径より約５ｍｍ大きく（ロール半径γ2ーロール半
径γ1＝５）形成すると、第２の搬送ロール５１の記録
媒体Ｐとの接触部は、記録媒体ガイド２０の面よりロー
ル端部で、寸法β1＝５ｍｍ以上突出、最少部で、寸法
β2１ｍｍ以上突出しているロール上面に導かれて上向
きに進行する。さらに、記録媒体Ｐは中央部分を凹形状
をなす第２の搬送ロール５１のテーパ面に沿って搬送方
向に直交する方向に湾曲面を形成する。[0009] The second transfer device 50 is a first transfer device 40.
Transport roll 51 and a second pressing body 55 that is disposed in pressure contact with the second transport roll 51.
It is composed of The second transport roll 51 is composed of two rolls disposed on the rotating shaft 53. Second transport roll 51
The rotation center position C 3 in are arranged in the same horizontal position and the rotation center position C 2 of the first transfer unit 40. The second transport roll 53 has a tapered shape in which one end is a large diameter portion 513 having a larger roll diameter and the other end is a small diameter portion 515 having a smaller roll diameter. The small diameter portions 515 of the two second transport rolls 53 are arranged on the rotating shaft 53 so as to face each other. Here, the small diameter portion 51 of the second transport roll 51
Roll radius gamma 3 of 5 is set larger than the roller radius gamma 1 of the first transfer roll 41. The second transporting device 50 configured as described above projects from the surface of the recording medium guide 20 by the dimension β 1 at the roll end and by the dimension β 2 at the center of the roll. For example, the small-diameter portion 515 of the second transport roll 51
The roll radius gamma 3 of about 1mm greater than the roll radius gamma 1 of the first transport roll 41 (roll radius gamma 3 Roru radius gamma 1 = 1), the large-diameter portion 513 than the roll diameter of the first transfer roll 41 If it is formed about 5 mm larger (roll radius γ 2 -roll radius γ 1 = 5), the contact portion of the second transport roll 51 with the recording medium P is located at the roll end from the surface of the recording medium guide 20, and the dimension β 1 = 5mm or more projecting, in a minimal part, proceeds upwards guided into a roll top projecting dimension beta 2 1 mm or more. Further, the recording medium P forms a curved surface in a direction perpendicular to the transport direction along the tapered surface of the second transport roll 51 having a concave central portion.
【００１０】上記構成によるインジェット記録装置によ
ると、供給装置３０で供給された記録媒体Ｐは、印字ヘ
ッド１０により印字される。そして、印字済の記録媒体
Ｐは、記録媒体ガイド２０の面と接触面を同一水平面と
して配置される第１の搬送装置４０に挾持される。この
とき、記録媒体Ｐは第１の押圧体４４によって第１の搬
送ロール４１方向に押圧されて記録媒体ガイド２０面位
置を維持するので、印字領域においては、印字ヘッド１
０との間隔を維持した状態で第２の搬送装置５０へ送ら
れる。そして、第２の搬送装置５０において第２の押圧
体（例えば拍車）５５によって第２の搬送ロール５１方
向に押圧されて挾持され、第２の搬送ロール５１により
記録媒体受け部に排紙される。この際、印字済の記録媒
体Ｐは送り方向と直交する方向（記録媒体Ｐの幅方向）
に全体的に湾曲される。このように、印字済の記録媒体
Ｐは、記録媒体幅方向に全体的にＵ字状に湾曲されるこ
とにより断面二次モーメントが増加し、下むきの曲折に
対する抵抗力が格段に増大する。従って、高濃度印字が
なされた薄い記録媒体であったとしても記録媒体先端が
自重により垂れ下がった状態で記録媒体受け部に排紙さ
れることがない。According to the ink jet recording apparatus having the above configuration, the recording medium P supplied by the supply device 30 is printed by the print head 10. Then, the printed recording medium P is clamped by the first transport device 40 in which the surface of the recording medium guide 20 and the contact surface are arranged on the same horizontal plane. At this time, the recording medium P is pressed by the first pressing body 44 in the direction of the first transport roll 41 to maintain the position of the surface of the recording medium guide 20, so that the print head 1
The sheet is sent to the second transfer device 50 while maintaining an interval of 0. Then, in the second transporting device 50, the second pressing roll (for example, a spur) 55 is pressed in the direction of the second transporting roll 51 and nipped, and is discharged to the recording medium receiving portion by the second transporting roll 51. . At this time, the printed recording medium P is in a direction perpendicular to the feeding direction (the width direction of the recording medium P).
The whole is curved. As described above, the printed recording medium P is entirely curved in a U-shape in the recording medium width direction, so that the second moment of area is increased, and the resistance to the downward bending is significantly increased. Therefore, even if the recording medium is a thin recording medium on which high-density printing is performed, the recording medium is not discharged to the recording medium receiving portion in a state where the leading end of the recording medium hangs down by its own weight.
【００１１】上記のように、このインクジェット記録装
置は記録媒体の排紙時、既に記録媒体受け部に収容され
ている先の印字済記録媒体の記録面を次に排出される記
録媒体が滑走することがない。また、印字済みの記録媒
体はまず第１の搬送装置により記録媒体ガイド面と同一
水平面を保持しつつ第２の搬送装置に挾持されるので、
記録ヘッド１０への接触によるインク汚れを防止し、さ
らに排紙部においては後続の排紙記録媒体が先の記録媒
体に接触するまでの時間を長くして排紙することがで
き、排紙部でのインク汚れをも阻止できる。As described above, in this ink jet recording apparatus, when the recording medium is discharged, the recording medium to be discharged next slides on the recording surface of the previous printed recording medium already stored in the recording medium receiving portion. Nothing. The printed recording medium is first clamped by the second transport device while maintaining the same horizontal plane as the recording medium guide surface by the first transport device.
It is possible to prevent ink contamination due to contact with the recording head 10 and further increase the time required for the succeeding discharged recording medium to come into contact with the preceding recording medium in the paper discharge unit, thereby discharging the paper. Can also prevent ink contamination.
【００１２】次に、インクジェット記録装置の他の実施
の形態を示す（図５参照）。実施の形態に示すインクジ
ェット記録装置は、第２の搬送装置における第２の搬送
ロールの配置を変えている。供給装置３０、第１の搬送
装置４０の記録媒体Ｐの搬送面を記録媒体ガイド２０面
と同一水平面とする構成は前記のインクジェット記録装
置と同様である。そして、第２の搬送装置５００の回転
軸５３０に配設する２個のロールよりなる第２の搬送ロ
ール５１０は一端部をロール径を大きくした太径部５２
３とし、他端部をロール径を小さくした細径部５２５と
したテーパ形状とし、２個の第２の搬送ロール５１０の
細径部５２５を対向させて回転軸５３０に配設してい
る。ここで、第２の搬送ロール５１０の太径部５２３の
ロール半径γ1は第１の搬送ロール４１のロール半径γ1
と同一に設定されており、細径部はロール半径γ1より
小さく設定されている。そして、第２の搬送ロール５１
０の回転中心位置Ｃ5は第１の搬送装置４０の回転中心
位置Ｃ2より寸法β1高い位置に配設される。Next, another embodiment of the ink jet recording apparatus will be described (see FIG. 5). In the ink jet recording apparatus described in the embodiment, the arrangement of the second transport roll in the second transport apparatus is changed. The configuration in which the transport surface of the recording medium P of the supply device 30 and the first transport device 40 is the same horizontal plane as the surface of the recording medium guide 20 is the same as that of the above-described inkjet recording device. The second transporting roll 510 including two rolls disposed on the rotation shaft 530 of the second transporting device 500 has a large-diameter portion 52 with one end having a larger roll diameter.
3, the other end portion has a tapered shape with a small-diameter portion 525 having a reduced roll diameter, and the small-diameter portions 525 of the two second transport rolls 510 are disposed on the rotating shaft 530 so as to face each other. Here, the roll radius gamma 1 of the large diameter portion 523 of the second transfer roll 510 is the roll radius gamma 1 of the first transport roll 41
It is set to the same as, the small-diameter portion is set smaller than the roller radius gamma 1. Then, the second transport roll 51
Rotation center position C 5 0 is disposed in the rotation center position C 2 than the dimension beta 1 high position of the first transfer unit 40.
【００１３】このように構成される第２の搬送装置５０
０は、記録媒体ガイド２０の面よりロール端部で寸法β
1突出している。例えば、寸法β1＝５ｍｍとすると、第
２の搬送ロール５１０の両端部分は記録媒体ガイド面か
ら５ｍｍ突出している。また、細径部５３０のロール半
径γ3を太径部５１０との差を４ｍｍとすると、細径部
５３０においても１ｍｍ以上記録媒体Ｐとの接触部は記
録媒体ガイド面から突出する構成となる。[0013] The second transfer device 50 thus configured
0 is the dimension β at the roll end from the surface of the recording medium guide 20.
One protrudes. For example, when the dimension β 1 is 5 mm, both end portions of the second transport roll 510 project 5 mm from the recording medium guide surface. Further, assuming that the difference between the roll radius γ 3 of the small-diameter portion 530 and the large-diameter portion 510 is 4 mm, the contact portion of the small-diameter portion 530 with the recording medium P by 1 mm or more protrudes from the recording medium guide surface. .
【００１４】この実施の形態における記録媒体Ｐの搬送
は、記録ヘッド１０と記録媒体ガイド２０とで形成する
印字領域から第１の搬送装置４０までは印字済みの記録
媒体Ｐは水平位置を保持して進行し、記録ヘッド１０に
接触してインク汚れが発生する危惧がない。そして、第
２の搬送ロール５１０の記録媒体Ｐとの接触部は、記録
媒体ガイド２０の面よりロール端部で５ｍｍ以上突出、
最少部で１ｍｍ以上突出しているロール上面に導かれ
て、搬送方向に直交する方向に湾曲面を形成する。ここ
で示すインクジェット記録装置は前記記録装置と同様の
効果を発生すると共に、第２の搬送装置５００を小型化
することが出来る。In this embodiment, the recording medium P is conveyed from the printing area formed by the recording head 10 and the recording medium guide 20 to the first conveying device 40. And there is no fear that ink stains will occur due to contact with the recording head 10. Then, the contact portion of the second transport roll 510 with the recording medium P protrudes from the surface of the recording medium guide 20 by 5 mm or more at the roll end,
It is guided to the upper surface of the roll projecting 1 mm or more at the minimum part, and forms a curved surface in a direction perpendicular to the transport direction. The ink jet recording apparatus shown here has the same effects as the above recording apparatus and can reduce the size of the second transporting device 500.
【００１５】[0015]
【発明の効果】以上述べたように、この発明によれば、
記録媒体ガイド下流側に配設した第１の搬送手段の搬送
面を印字領域にある記録媒体ガイド面と同一水平面に配
設することにより、印字領域において記録媒体は記録媒
体ガイド面より浮き上がることなく、記録媒体の記録面
が印字ヘッドに接触して印字品質を悪くする不都合を解
消している。さらに、記録媒体ガイド面より搬送面を突
出させた第２の搬送手段は押圧体と協働して、記録媒体
を上向きに搬送させると共に、印字済記録媒体を送り方
向と直交する方向に湾曲させることができ、記録媒体受
け部に排出されるまでの時間を長くすることができる。As described above, according to the present invention,
By arranging the conveying surface of the first conveying means arranged on the downstream side of the recording medium guide on the same horizontal plane as the recording medium guide surface in the printing area, the recording medium does not rise above the recording medium guide surface in the printing area. In addition, the inconvenience that the recording surface of the recording medium comes into contact with the print head to deteriorate the print quality is eliminated. Further, the second conveying means having a conveying surface protruding from the recording medium guide surface cooperates with the pressing body to convey the recording medium upward and to curve the printed recording medium in a direction perpendicular to the feeding direction. Therefore, the time until the recording medium is discharged to the recording medium receiving portion can be lengthened.
【００１６】このように、印字済記録媒体を印字済記録
媒体送り方向と直交する方向に湾曲させても、印字領域
（エリア）に残る記録媒体の用紙姿勢に影響が出ないよ
うにして全体的に湾曲させた状態で上方に向けて記録媒
体受け部に排紙することができので、印字済記録媒体に
高濃度印字がなされた薄い記録媒体であったとしても、
印字済記録媒体先端が自重により垂れ下がった状態で記
録媒体受け部に排紙されるようなことはなくなり、先に
記録媒体受け部に収容された印字済記録媒体との間での
インク汚れを防止できる。As described above, even if the printed recording medium is curved in a direction perpendicular to the feeding direction of the printed recording medium, the posture of the recording medium remaining in the printing area (area) is not affected, so that the overall recording medium is not affected. It can be ejected upward to the recording medium receiving section in a state where it is curved, so even if it is a thin recording medium on which high density printing is performed on the printed recording medium,
The printed recording medium is no longer ejected to the recording medium receiving part with its tip hanging down by its own weight, preventing ink contamination with the printed recording medium stored in the recording medium receiving part first. it can.
【図１】 この発明の実施例のインクジェット記録装置
の排出部を説明する斜視図。FIG. 1 is a perspective view illustrating a discharge unit of an ink jet recording apparatus according to an embodiment of the present invention.
【図２】 本発明のインクジェット記録装置の断面図。FIG. 2 is a cross-sectional view of the ink jet recording apparatus of the present invention.
【図３】 記録媒体の上方から見た本発明のインクジェ
ット記録装置の平面図。FIG. 3 is a plan view of the inkjet recording apparatus of the present invention as viewed from above a recording medium.
【図４】 記録媒体の排出方向からの正面図。FIG. 4 is a front view of the recording medium as viewed from a discharge direction.
【図５】 本発明によるインクジェット記録装置の他の
実施の形態を示す断面図。FIG. 5 is a sectional view showing another embodiment of the ink jet recording apparatus according to the present invention.
Ｐ 記録媒体、 １０ 印字ヘッド、 ２０ 記録媒体
ガイド、 ３０ 記録媒体の供給装置、 ４０ 第１の
搬送装置、 ４１ 第１の搬送ロール、 ４４第１の拍
車（押圧体）、 ５０ 第２の搬送装置、 ５１ 第２
の搬送ロール、 ５５ 第２の拍車（押圧体）。P recording medium, 10 print head, 20 recording medium guide, 30 recording medium supply device, 40 first transport device, 41 first transport roll, 44 first spur (pressing body), 50 second transport device , 51 second
55, a second spur (pressing body).
Claims (5)
印字ヘッドと、前記印字ヘッドに対向して配置され、記
録時に記録媒体を載置すると共に記録後の前記記録媒体
を排出側へ案内する記録媒体ガイドと、前記記録媒体ガ
イドの記録媒体搬送経路下流側に配置され前記記録媒体
を挟持して排出側へ搬送する搬送手段を備えたインクジ
ェット記録装置において、 前記搬送手段は、記録媒体ガイドに近接して配設され記
録媒体を挟持して搬送する第１の搬送手段と、第１の搬
送手段の下流側に配設され記録媒体を挟持して搬送する
第２の搬送手段を有し、第１の搬送手段の記録媒体の搬
送面は記録媒体ガイドの記録媒体の載置面と同一水平面
に配置され、第２の搬送手段の記録媒体の搬送面は少な
くとも搬送方向両端部分を第１の搬送手段の搬送面より
印字ヘッド側に位置するように構成されてなるインクジ
ェット記録装置。1. A print head which records ink on a recording medium by dropping ink, and is arranged to face the print head. The recording head mounts the recording medium during recording and guides the recorded recording medium to a discharge side. An ink jet recording apparatus comprising: a recording medium guide to be transported; and a transport unit disposed on the downstream side of the recording medium guide path of the recording medium guide to transport the recording medium to the discharge side. A first transport unit disposed in close proximity to the first transport unit and nipping and transporting the recording medium; and a second transport unit disposed downstream of the first transport unit and nipping and transporting the recording medium. The recording medium conveying surface of the first conveying means is arranged on the same horizontal plane as the recording medium mounting surface of the recording medium guide, and the recording medium conveying surface of the second conveying means has at least both ends in the conveying direction of the first direction. Transport of transport means Configured ink jet recording apparatus comprising so as to be positioned on the print head side of the surface.
接して配設される押圧体とよりなり、第２の搬送手段の
搬送ロールは、用紙媒体の搬送方向両端より中央部に向
かって小径となるテーパー形状をなし、一体成形もしく
は複数個に分割されて構成されたことを特徴とする請求
項１記載のインクジェット記録装置。2. The transporting means comprises a transporting roll and a pressing body disposed in pressure contact with the transporting roll, and the transporting roll of the second transporting means has a smaller diameter from both ends in the transporting direction of the paper medium toward the center. 2. An ink jet recording apparatus according to claim 1, wherein said ink jet recording apparatus is formed integrally or divided into a plurality of parts.
１の搬送手段の通過時と第２の搬送手段を通過時の記録
媒体の搬送角度が相違すると共に、第１の搬送手段の搬
送面より、印字ヘッド側である上側に位置させる第２の
搬送手段の搬送面を通過した記録媒体は、上方に傾斜し
て排出されるよう構成されてなる請求項１記載のインク
ジェット記録装置。3. A recording medium guide surface of a recording medium, a conveying angle of the recording medium when passing through the first conveying unit and a conveying angle of the recording medium when passing through the second conveying unit, and a conveying surface of the first conveying unit. 2. The ink jet recording apparatus according to claim 1, wherein the recording medium that has passed through the transport surface of the second transport unit positioned above the print head is ejected while being inclined upward.
は第１の搬送ロールのロール径より大きいロール径を有
してなる請求項１記載のインクジェット記録装置。4. The ink jet recording apparatus according to claim 1, wherein the roll diameter of the transport roll of the second transport means is larger than the roll diameter of the first transport roll.
は、記録媒体ガイドの記録媒体の載置面と同一水平面に
配置される第１の搬送手段の搬送ロールの回転軸より印
字ヘッド側である上側に位置させて配置されてなる請求
項１記載のインクジェット記録装置。5. The rotation axis of the transport roll of the second transport means is closer to the print head than the rotary axis of the transport roll of the first transport means which is arranged on the same horizontal plane as the surface of the recording medium guide on which the recording medium is placed. 2. The ink jet recording apparatus according to claim 1, wherein the ink jet recording apparatus is arranged so as to be located on the upper side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9012699A JPH10245143A (en) | 1997-01-27 | 1997-01-27 | Ink jet recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9012699A JPH10245143A (en) | 1997-01-27 | 1997-01-27 | Ink jet recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10245143A true JPH10245143A (en) | 1998-09-14 |
Family
ID=11812648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9012699A Pending JPH10245143A (en) | 1997-01-27 | 1997-01-27 | Ink jet recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10245143A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7083346B2 (en) * | 2003-01-17 | 2006-08-01 | Samsung Electronics Co., Ltd. | Paper discharge unit for an inkjet printer |
-
1997
- 1997-01-27 JP JP9012699A patent/JPH10245143A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7083346B2 (en) * | 2003-01-17 | 2006-08-01 | Samsung Electronics Co., Ltd. | Paper discharge unit for an inkjet printer |
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