JPH02198858A - Liquid injection recorder - Google Patents
Liquid injection recorderInfo
- Publication number
- JPH02198858A JPH02198858A JP1907189A JP1907189A JPH02198858A JP H02198858 A JPH02198858 A JP H02198858A JP 1907189 A JP1907189 A JP 1907189A JP 1907189 A JP1907189 A JP 1907189A JP H02198858 A JPH02198858 A JP H02198858A
- Authority
- JP
- Japan
- Prior art keywords
- cap
- holder
- sealing means
- ejection port
- ejection
- 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
- 239000007788 liquid Substances 0.000 title claims description 18
- 238000002347 injection Methods 0.000 title 1
- 239000007924 injection Substances 0.000 title 1
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Ink Jet (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、記録用の液滴を吐出する吐出口の目詰り防止
手段（該吐出口密閉手段）の構造に特徴を有する液体噴
射記録装置に関する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a liquid jet recording device characterized by the structure of a means for preventing clogging of an ejection port (ejection port sealing means) for ejecting liquid droplets for recording. Regarding.
［従来の技術］
液体噴射記録ヘッド（インクジェット記録ヘッド）を有
する記録装置に用いられる記録用の液体として、主に水
性のインクが用いられており、装置の長時間の未使用状
態下では、吐出口付近に滞留するインクに、溶媒の蒸発
などによる粘度増加や固形物の析出等が発生する場合が
あり、長期未使用後に記録を行なう場合の良好な印字を
さまたげる要因となっていた。[Prior Art] Water-based ink is mainly used as the recording liquid for recording devices that have a liquid jet recording head (inkjet recording head), and if the device is not used for a long time, the ejection may deteriorate. The viscosity of the ink that remains near the outlet may increase due to evaporation of the solvent, and solid matter may precipitate, which can hinder good printing when recording after a long period of non-use.
そこで、従来より、装置の未使用状態時に、吐出口を外
気と密閉し、上記のような問題の発生を防ぐ手段を記録
装置に更に付加することが行なわれていた。Therefore, conventionally, when the apparatus is not in use, a means has been added to the recording apparatus to seal the discharge port from the outside air and prevent the above-mentioned problems from occurring.
従来における吐出口密閉手段の一例を第５図及び第６図
に示子。An example of a conventional discharge port sealing means is shown in FIGS. 5 and 6.
この例の吐出口密閉手段は、目詰り防止用キャップ２を
支持するキャップホルダー６をホルダー３に摺動自在に
配置し、バネ７によって、該吐出口密閉手段が図示した
ように記録ヘッドの吐出口配列面に当接された際のエコ
ライズ（密着状態の制御）を行なう構成を有する。The ejection port sealing means of this example includes a cap holder 6 that supports the clogging prevention cap 2 and is slidably disposed on the holder 3, and a spring 7 causes the ejection port sealing means to close the ejection port of the recording head as shown in the figure. It has a configuration that performs equalization (control of contact state) when it comes into contact with the exit array surface.
更に、この吐出口密閉手段は、該吐出口密閉手段が記録
ヘッドに当接された際に、キャップ２と吐出口配列面と
によって形成される外気と密閉された空隙内を吸引でき
るように、吸引手段と接続され得る管４が接続されてい
る。Furthermore, this ejection port sealing means is configured to suck the inside of the space sealed with the outside air formed by the cap 2 and the ejection port arrangement surface when the ejection port sealing means is brought into contact with the recording head. A tube 4 is connected which can be connected to suction means.
［発明が解決しようとする課題］
本発明の目的は、より少ない部品数でより簡易に組み立
て可能な構造を有する吐出口密閉手段を有し、より小型
化、低コスト化された液体噴射記録装置を提供すること
にある。[Problems to be Solved by the Invention] An object of the present invention is to provide a liquid jet recording device that has an ejection port sealing means that has a structure that can be assembled more easily with a smaller number of parts, and that is smaller and lower in cost. Our goal is to provide the following.
すなわち、第５図及び第６図に示すような構成の吐出口
密閉手段は、その構造上コンパクト化に限界があり、更
にその部品点数及び組立工程数も多く、低コスト化にも
限界があった。In other words, the discharge port sealing means having the structure shown in FIGS. 5 and 6 has a limit in terms of compactness due to its structure, and also has a large number of parts and assembly steps, so there is a limit in reducing cost. Ta.
［課題を解決するための手段］
本発明の液体噴射記録装置は、液滴を吐出する吐出口が
配された面を有する記録ヘッドと、該吐出口配置面に当
接され、該吐出口を外気から密閉する手段とを有する液
体噴射記録装置において、前記吐出口密閉手段が、ホル
ダーと、ホルダー前面に張設固定された前記吐出口を外
気から密閉するためのキャップとからなり、かつ該キャ
ップが弾性を有する材料で構成され、該吐出口密閉手段
の前記吐出口配置面への当接方向において弾性を有し、
該弾性を利用して該キャップが前記吐出口配置面へ密着
されるものであることを特徴とする。[Means for Solving the Problems] A liquid jet recording apparatus of the present invention includes a recording head having a surface on which ejection ports for ejecting liquid droplets are disposed, and a recording head that is in contact with the ejection port arrangement surface and that is arranged to eject the ejection ports. In a liquid jet recording device having a means for sealing the ejection port from outside air, the ejection port sealing means includes a holder and a cap for sealing the ejection port from the outside air, which is stretched and fixed on the front surface of the holder, and the cap is made of an elastic material, and has elasticity in the direction of contact of the outlet sealing means with the outlet arrangement surface;
The cap is characterized in that the elasticity is used to bring the cap into close contact with the discharge port arrangement surface.
前記キャップは、前記吐出口配置面に対して垂直に配置
された管状構造を有し、該管状構造が、該吐出口密閉手
段の前記吐出口配置面への当接時に、前記ホルダー前面
と前記吐出口配置面に挟まれた状態でこれらが密着して
、該前記吐出口の密閉状態を形成し得るものであっても
良い。The cap has a tubular structure arranged perpendicularly to the outlet arrangement surface, and when the outlet sealing means comes into contact with the outlet arrangement surface, the tubular structure connects the holder front surface and the These may be in close contact with each other while being sandwiched between the discharge port arrangement surfaces to form a sealed state of the discharge port.
更に、本発明の液体噴射記録ヘッドは、前記吐出口密閉
手段の前記吐出口配置面への当接時に、前記吐出口配置
面に形成される密閉空間を吸引する手段（回復系）を有
していても良い。Furthermore, the liquid jet recording head of the present invention includes means (recovery system) for sucking a sealed space formed in the ejection port arrangement surface when the ejection port sealing means contacts the ejection port arrangement surface. You can leave it there.
［実施例］
以下、本発明の実施例を図面を参照しつつ詳細に説明す
る。[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
第１図及び第２図は、本発明の液体噴射記録装置一実施
例の要部を示す図であり、第１図は吐出口密閉手段と記
録ヘッドの配置の平面図、第２図はその側面図である。1 and 2 are diagrams showing the main parts of an embodiment of the liquid jet recording apparatus of the present invention. FIG. 1 is a plan view of the arrangement of the ejection port sealing means and the recording head, and FIG. 2 is a plan view thereof. FIG.
この例の装置では、ホルダー３の前面（液滴の吐出のた
めのエネルギーとして熱エネルギーを利用する記録ヘッ
ドの吐出口１ａの配列面に対向する面）に張設されたキ
ャップ２とを有した吐出口密閉手段が設けられている。The device of this example has a cap 2 stretched over the front surface of the holder 3 (the surface facing the array surface of the ejection ports 1a of the recording head that uses thermal energy as energy for ejecting droplets). A discharge port sealing means is provided.
キャップ２は弾性体からなり、ホルダー３への接合固定
部と、該固定部２ａに管状構造２ｂを張設するための縁
部２ｃとからなり、これらが一体成型されている。The cap 2 is made of an elastic body, and consists of a fixed part for joining to the holder 3, and an edge part 2c for tensioning the tubular structure 2b to the fixed part 2a, which are integrally molded.
キャップ２は、例えばシリコンゴム、ブチルゴム等の弾
性体から形成することができる。The cap 2 can be made of an elastic material such as silicone rubber or butyl rubber.
また、第３図、第４図に示したｔの部分（縁部２ｃ）の
厚さをできるだけ薄くすることにより、記録ヘッドの吐
出口配列面に対するキャップ２のれるのが望ましい。Further, it is desirable that the thickness of the portion t (edge portion 2c) shown in FIGS. 3 and 4 be made as thin as possible so that the cap 2 can rest on the ejection port arrangement surface of the recording head.
このような構造によって、キャップ２の管状構造２ｂは
、該吐出口密閉手段の吐出口配置面への当接方向におい
て弾性を有し、該弾性を利用して該キャップの吐出口配
置面へのエコライズが達成される。なお、吐出口密閉手
段の吐出口配置面への当接は、適当な駆動手段により行
なえば良い。With such a structure, the tubular structure 2b of the cap 2 has elasticity in the direction of contact with the discharge port arrangement surface of the discharge port sealing means, and utilizes this elasticity to contact the discharge port arrangement surface of the cap. Ecorise is achieved. Note that the contact of the discharge port sealing means with the discharge port arrangement surface may be performed by an appropriate driving means.
第１図と第３図との比較かられかるように、キャップ内
の空間がキャップを記録ヘッドに当接させた際に大巾に
減少するので、キャップ自身によるポンプ作用（負圧作
用）があるので、キャラしたキャップが元の状態にもど
るため、すなわち、キャップ内が負圧条件から大気圧状
態に向ワて変化するので、キャップ内からインクがこぼ
れることが防止され、インクを引続きキャップ内に保持
できる。この作用は、ホルダ３のキャップ直下のキャッ
プ内径よりも広い空間の設定でより効果的に得られる。As can be seen from the comparison between Figures 1 and 3, the space inside the cap is greatly reduced when the cap is brought into contact with the recording head, so the pumping action (negative pressure action) by the cap itself is reduced. Because of this, the cap returns to its original state, that is, the inside of the cap changes from a negative pressure condition to an atmospheric pressure condition, which prevents ink from spilling from inside the cap, and allows ink to continue to flow inside the cap. can be maintained. This effect can be obtained more effectively by setting a space immediately below the cap of the holder 3 that is wider than the inner diameter of the cap.
該吐出口密閉手段が吐出口配置面に当接された状態を第
３図及び第４図に示す。FIGS. 3 and 4 show a state in which the discharge port sealing means is in contact with the discharge port arrangement surface.
すなわち、ホルダー３の前面と、管状構造２ｂと、記録
ヘッドの吐出口配置面とがそれぞれ気密性良く密着され
、吐出口１ａが外気から遮断される。That is, the front surface of the holder 3, the tubular structure 2b, and the ejection port arrangement surface of the recording head are each brought into close contact with each other with good airtightness, and the ejection ports 1a are shielded from the outside air.
なお、キャップ及びホルダーの構造は図示した例に限定
されず、所望に応じて適宜選択できる。Note that the structures of the cap and holder are not limited to the illustrated example, and can be appropriately selected as desired.
例えば、管状構造２ｂは、ホルダー側開口が閉じられた
閉管としても良い。For example, the tubular structure 2b may be a closed tube with a closed opening on the holder side.
更に所望に応じて、図示したような不図示の吸引ポンプ
等の吸引手段と接続され、吐出口密閉手段が吐出口配置
面へ当接された時に、吐出口配置面に形成される密閉空
間を吸引するための、例えば―嬉吸引チューブ４及び接
続チューブ等からなる構造が追加されていても良い。Furthermore, if desired, it is connected to a suction means such as a suction pump (not shown) as shown in the drawings, and when the discharge port sealing means is brought into contact with the discharge port arrangement surface, the sealed space formed in the discharge port arrangement surface can be closed. A structure for suction, for example consisting of a suction tube 4 and a connecting tube, etc., may be added.
［発明の効果］
本発明の液体噴射記録装置における吐出口密閉手段は、
従来のものと比べてより少ない部品数及び工程数で、よ
り簡易に作製でき、しかも構造的にもよりコンパクト化
が可能であり、その上良好な密閉性を常に達成できる。[Effects of the Invention] The ejection port sealing means in the liquid jet recording device of the present invention has the following features:
Compared to conventional products, it can be manufactured more easily with fewer parts and steps, and moreover, it can be made more compact in structure, and moreover, good sealing performance can always be achieved.
また、吐出口密閉手段は簡単な構成を有するので、ホル
ダー１に複数のキャップを配列し、並列された複数の記
録ヘッドの各吐出口配列面を一括して密閉する吐出口密
閉手段とした際にも、各キャップの配列精度や密閉性の
均一性を容易に達成できる。In addition, since the ejection port sealing means has a simple configuration, when a plurality of caps are arranged on the holder 1 and the ejection port sealing means is used to collectively seal each ejection port arrangement surface of a plurality of parallel recording heads. Also, it is possible to easily achieve uniformity in arrangement accuracy and sealing performance of each cap.
従って、本発明によって、吐出口密閉手段を有する液体
噴射記録装置のより低コスト化、コンパクト化が達成で
きる。Therefore, according to the present invention, a liquid jet recording apparatus having an ejection port sealing means can be made more cost-effective and compact.
第１図及び第２図は、本発明の液体噴射記録装置一実施
例の要部を示す図であり、第１図は吐出口密閉手段と記
録ヘッドの配置の平面図、第２図はその側面図である。
第１１及び第會図は、第１図及び第２図に示された装置
においてる吐出口密閉手段が記録ヘッドの吐出口面の当
接された状態を示す図であり、第９図はその平面図、６
図はその側面図であ ａ
２ ：
ａ
ｂ
Ｃ
３：
４ ：
５ ：
６ ニ
ア ：
：吐出口
キャップ
：キャップ固定部
：キャップ縁部
：管状構造部
ホルダー
吸引チューブ
接続チューブ
キャップホルダー
加圧バネ1 and 2 are diagrams showing the main parts of an embodiment of the liquid jet recording apparatus of the present invention. FIG. 1 is a plan view of the arrangement of the ejection port sealing means and the recording head, and FIG. 2 is a plan view thereof. FIG. 11 and 2 are diagrams showing a state in which the ejection port sealing means in the apparatus shown in FIGS. 1 and 2 are in contact with the ejection port surface of the recording head, and FIG. Floor plan, 6
The figure is a side view of the same.
Claims (1)
ッドと、該吐出口配置面に当接され、該吐出口を外気か
ら密閉する手段とを有する液体噴射記録装置において、
前記吐出口密閉手段が、ホルダーと、ホルダー前面に張
設固定された前記吐出口を外気から密閉するためのキャ
ップとからなり、かつ該キャップが弾性を有する材料で
構成され、該吐出口密閉手段の前記吐出口配置面への当
接方向において弾性を有し、該弾性を利用して該キャッ
プが前記吐出口配置面へ密着されるものであることを特
徴とする液体噴射記録装置。 ２）前記キャップが前記吐出口配置面に対して垂直に配
置された管状構造を有し、該管状構造が、該吐出口密閉
手段の前記吐出口配置面への当接時に、前記ホルダー前
面と前記吐出口配置面に挟まれた状態でこれらが密着し
て、該前記吐出口の密閉状態を形成し得るものである請
求項１記載の液体噴射記録装置。 ３）前記吐出口密閉手段の前記吐出口配置面への当接時
に、前記吐出口配置面に形成される密閉空間を吸引する
手段を更に有する請求項１または２記載の液体噴射記録
装置。[Scope of Claims] 1) A liquid ejector comprising: a recording head having a surface on which ejection ports for ejecting droplets are disposed; and means that abuts the ejection port arrangement surface and seals the ejection ports from outside air. In the recording device,
The discharge port sealing means includes a holder and a cap for sealing the discharge port from outside air, which is stretched and fixed on the front surface of the holder, and the cap is made of an elastic material. A liquid jet recording apparatus characterized in that the cap has elasticity in the direction of contact with the ejection port arrangement surface, and the cap is brought into close contact with the ejection port arrangement surface using the elasticity. 2) The cap has a tubular structure arranged perpendicularly to the discharge port arrangement surface, and the tubular structure contacts the holder front surface when the discharge port sealing means comes into contact with the discharge port arrangement surface. 2. The liquid jet recording apparatus according to claim 1, wherein the ejection ports are in close contact with each other while being sandwiched between the ejection port arrangement surfaces, thereby forming a sealed state of the ejection ports. 3) The liquid jet recording apparatus according to claim 1, further comprising means for sucking a sealed space formed in the ejection port arrangement surface when the ejection port sealing means comes into contact with the ejection port arrangement surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1907189A JPH02198858A (en) | 1989-01-28 | 1989-01-28 | Liquid injection recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1907189A JPH02198858A (en) | 1989-01-28 | 1989-01-28 | Liquid injection recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02198858A true JPH02198858A (en) | 1990-08-07 |
Family
ID=11989199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1907189A Pending JPH02198858A (en) | 1989-01-28 | 1989-01-28 | Liquid injection recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02198858A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008162023A (en) * | 2006-12-26 | 2008-07-17 | Musashi Eng Co Ltd | Method, mechanism and device for maintenance of inkjet head |
| JP2012183837A (en) * | 2012-07-05 | 2012-09-27 | Musashi Eng Co Ltd | Method, mechanism and apparatus for maintaining inkjet head |
| JP2012210819A (en) * | 2012-07-05 | 2012-11-01 | Musashi Eng Co Ltd | Method and mechanism for maintenance of inkjet head, and device with the mechanism |
-
1989
- 1989-01-28 JP JP1907189A patent/JPH02198858A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008162023A (en) * | 2006-12-26 | 2008-07-17 | Musashi Eng Co Ltd | Method, mechanism and device for maintenance of inkjet head |
| WO2008084690A1 (en) * | 2006-12-26 | 2008-07-17 | Musashi Engineering, Inc. | Method, mechanism, and device for maintaining inkjet head |
| CN103029446A (en) * | 2006-12-26 | 2013-04-10 | 武藏工业株式会社 | Method, mechanism and device for maintaining inkjet head |
| CN103085494A (en) * | 2006-12-26 | 2013-05-08 | 武藏工业株式会社 | Method, mechanism, and device for maintaining inkjet head |
| TWI417196B (en) * | 2006-12-26 | 2013-12-01 | Musashi Engineering Inc | Maintenance method and mechanism and device for ink jet nozzle |
| KR101521900B1 (en) * | 2006-12-26 | 2015-05-20 | 무사시 엔지니어링 가부시키가이샤 | Method, mechanism, and device for maintaining inkjet head |
| JP2012183837A (en) * | 2012-07-05 | 2012-09-27 | Musashi Eng Co Ltd | Method, mechanism and apparatus for maintaining inkjet head |
| JP2012210819A (en) * | 2012-07-05 | 2012-11-01 | Musashi Eng Co Ltd | Method and mechanism for maintenance of inkjet head, and device with the mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7556362B2 (en) | Pressure control valve unit and liquid ejecting apparatus | |
| US6491370B2 (en) | Ink jet recording apparatus | |
| KR940005408A (en) | Ink ejection recording means Attached ink jet recording apparatus and recovery method | |
| JPH10181040A (en) | Recorder and method for recovering recording head | |
| US7712864B2 (en) | Apparatus and method for maintaining recording head | |
| JP2001353884A (en) | Ink-jet recording device | |
| JPH02198858A (en) | Liquid injection recorder | |
| JPH11320897A (en) | Cap for recording head, cap mountable recording head and method and apparatus for attaching cap to recording head | |
| JPH11207979A (en) | Ink-jet type recording head | |
| JP2003231266A (en) | Capping unit encapsulating snout for ink jet print head | |
| JP2004284273A (en) | Liquid droplet discharging head and liquid droplet discharging device | |
| JPH08169123A (en) | Backup device and ink jet printer | |
| JP2006312262A (en) | Recovery device for liquid droplet delivery head and recovery method | |
| JPH11240179A (en) | Ink-jet recording apparatus | |
| JP2001232808A (en) | Ink jet recorder | |
| JPH11334108A (en) | Ink jet recorder and method for removing bubble | |
| JP2003054011A (en) | Ink jet recorder and method for working tube thereof | |
| JP2004284193A (en) | Liquid ejection head | |
| JP2001179999A (en) | Ink jet recorder | |
| JP2002292886A (en) | Ink jet recorder | |
| JPH09314853A (en) | Ink jet recording apparatus | |
| JPH0259769B2 (en) | ||
| JP2010149369A (en) | Suction cap apparatus | |
| JP2002086713A (en) | On-demand ink jet printing head | |
| JP4016478B2 (en) | Inkjet head |