JP2614207B2 - Ink jet recording device - Google Patents
Ink jet recording deviceInfo
- Publication number
- JP2614207B2 JP2614207B2 JP60241383A JP24138385A JP2614207B2 JP 2614207 B2 JP2614207 B2 JP 2614207B2 JP 60241383 A JP60241383 A JP 60241383A JP 24138385 A JP24138385 A JP 24138385A JP 2614207 B2 JP2614207 B2 JP 2614207B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- ink jet
- recording head
- jet recording
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004140 cleaning Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 description 6
- 238000011109 contamination Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16535—Cleaning of print head nozzles using wiping constructions
- B41J2/16538—Cleaning of print head nozzles using wiping constructions with brushes or wiper blades perpendicular to the nozzle plate
Landscapes
- Ink Jet (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明はインクジェット記録装置に関するものであっ
て、詳細には記録ヘッドの吐出口を清掃するためのブレ
ードを有するインクジェット記録装置に関するものであ
る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording apparatus, and more particularly, to an ink jet recording apparatus having a blade for cleaning an ejection port of a recording head.
［従来の技術］ 従来より、構成が簡単で安価な記録装置としてインク
ジェット記録装置が知られている。インクジェット記録
装置は、そのインク液滴吐出方式の相違から、常時イン
クを吐出するコンティニュアス型の装置と、必要な時の
みインク液滴を吐出するオンデマンド型の装置に分ける
ことができる。オンデマンド型の装置は比較的構成が簡
単で、またインクの吐出エネルが小さくて済む利点があ
る。2. Description of the Related Art Conventionally, an ink jet printing apparatus has been known as a simple and inexpensive printing apparatus. Ink jet recording apparatuses can be classified into a continuous type apparatus that constantly discharges ink and an on-demand type apparatus that discharges ink droplets only when necessary, because of the difference in the ink droplet discharge method. The on-demand type apparatus has an advantage that the configuration is relatively simple and the energy for discharging ink is small.
［発明が解決しようとする問題点］ 吐出エネルギーが小さいということは、機械的な設計
が容易であり、また小型化にも十分なメリットを有して
いるのだが、逆にインク液滴の有する飛翔エネルギーも
小さいので、記録ヘッドを搭載したキャリッジの走行ス
ピード、ガタ、その他のヘッドの挙動に影響する要素に
より容易に記録品質が悪化する欠点があった。[Problems to be Solved by the Invention] The fact that the ejection energy is small means that mechanical design is easy and there are sufficient merits for miniaturization. Since the flying energy is small, there is a disadvantage that the recording quality is easily deteriorated by the running speed of the carriage on which the recording head is mounted, the play, and other factors which affect the behavior of the head.
また、飛翔エネルギーが小さいと、インクの飛翔路を
長くしていった場合にドット形成地点のバラツキが生じ
やすく、記録品位を良好に保持できる制御範囲が小さく
なる欠点がある。Further, if the flying energy is small, there is a disadvantage that when the flight path of the ink is lengthened, the dot formation points tend to vary, and the control range in which the recording quality can be maintained well is reduced.
したがって、従来のオンデマンド型のインクジェット
記録装置においては記録ヘッドと記録媒体の距離をでき
るだけ小さくするように設計されていた。Therefore, in a conventional on-demand type ink jet recording apparatus, the distance between the recording head and the recording medium is designed to be as small as possible.
ところで、インクジェット記録装置の記録ヘッドはイ
ンクを吐出する性質上、記録ヘッドのノズル面に紙カ
ス、ホコリ、あるいは記録に不要なインクが付着し、こ
れらの原因でノズルの目詰まりや吐出異常が発生し、正
常な記録を行なえなくなる問題点が生ずる場合があっ
た。したがって、従来装置ではヘッドに付着した異物の
除去、あるいはヘッドの目詰まりの回復手段を設ける必
要があった。By the way, due to the nature of the recording head of an ink jet recording device that discharges ink, paper dust, dust, or ink unnecessary for recording adheres to the nozzle surface of the recording head, and these causes nozzle clogging or abnormal discharge. However, there is a case where a problem occurs that normal recording cannot be performed. Therefore, in the conventional apparatus, it is necessary to provide a means for removing foreign matters adhering to the head or for recovering clogging of the head.
ところで、初期のオンデマンド型記録ヘッドは構造技
術上の制約からノズル複数化を実現するのが困難である
ため、第２図に示すように単数のノズル２を設けた構成
を採用していた。１個ないし数個のノズル２を設けたヘ
ッドでは同図に示すように異物の付着を防止する保護プ
レート３を設けることができた。By the way, it is difficult to realize a plurality of nozzles in the early on-demand type recording head due to structural technical restrictions. Therefore, a configuration provided with a single nozzle 2 as shown in FIG. 2 was employed. A head provided with one or several nozzles 2 could be provided with a protective plate 3 for preventing foreign matter from adhering, as shown in FIG.
ところが、近年のように記録の高密度、高速化が進め
られるようになってくると、ヘッド〜媒体間の距離はさ
らに小さくなる傾向にあり、このような保護プレートを
設けるのは回復系との兼ね合いで困難になってきた。However, as recording densities and speeds have increased as in recent years, the distance between the head and the medium has tended to be further reduced. It has become difficult to balance.
したがって、近年では第３図に示すような清掃用のブ
レードを設けることが多い。ブレード４はシリコンゴム
などの弾性体から構成し、ホルダ５によって保持され
る。保持位置は第４図のように記録ヘッド１の走査領域
の所定位置に設定され、記録ヘッド１の走査に応じてブ
レード４の先端部がノズル面の異物をかき落すようにし
てある。ブレード４の長さは記録ヘッド１との当接した
際に長さｌの清掃面が当接するようになっている。Therefore, in recent years, a cleaning blade as shown in FIG. 3 is often provided. The blade 4 is made of an elastic material such as silicon rubber, and is held by the holder 5. The holding position is set at a predetermined position in the scanning area of the recording head 1 as shown in FIG. 4, so that the tip of the blade 4 scrapes off foreign matter on the nozzle surface in accordance with the scanning of the recording head 1. The length of the blade 4 is such that when the blade 4 comes into contact with the recording head 1, the cleaning surface having the length 1 comes into contact.
このような構成では記録ヘッド１がブレード４から離
脱した際に第５図のようにブレード４が弾性により原型
に復帰するので、この揺動モーメントによりかき取られ
た異物が装置内に飛散して装置内、あるいは記録媒体を
汚染する問題があった。この汚染によりプリント基板が
短絡して故障を発生したり、あるいは記録済みの記録媒
体の汚染により記録動作をもう一度実行する必要が生じ
たりした。In such a configuration, when the recording head 1 separates from the blade 4, the blade 4 returns to its original shape due to elasticity as shown in FIG. 5. There was a problem that the inside of the apparatus or the recording medium was contaminated. This contamination may cause a short circuit of the printed circuit board and cause a failure, or the contamination of the recorded recording medium may require the recording operation to be performed again.
［問題点を解決するための手段〕 以上の問題点を解決するために、本発明によれば、一
の記録ヘッドの吐出面を清掃する一の平板状弾性ブレー
ドであって、摺擦によって前記吐出面の清掃する平板状
弾性ブレードを備えたインクジェット記録装置におい
て、前記平板状弾性ブレードは、少なくとも前記記録ヘ
ッドの吐出面に接触する先端部がスリットにより異なる
間隔で複数に分けられている構造を採用した。[Means for Solving the Problems] In order to solve the above problems, according to the present invention, there is provided one flat elastic blade for cleaning the ejection surface of one print head, In an ink jet recording apparatus provided with a flat elastic blade for cleaning an ejection surface, the flat elastic blade has a structure in which at least a tip portion contacting the ejection surface of the recording head is divided into a plurality of slits at different intervals by slits. Adopted.
［作用］ このような構造によれば、スリットにより異なる間隔
で複数に分けられた平板状弾性ブレードのスリットにイ
ンクを吸収するとともに、平板状弾性ブレードの回動モ
ーメントを調整できるため、ブレードが記録ヘッドの吐
出面を離れる際のインクを飛散を効果的に防止すること
ができる。また、記録ヘッドの形状に応じてスリットに
より平板状弾性ブレードを分ける間隔を異ならせること
により、記録ヘッドの形状に応じた清掃効果が得られ
る。[Operation] According to such a structure, ink can be absorbed by the slits of the flat elastic blade divided into a plurality of portions at different intervals by the slit, and the turning moment of the flat elastic blade can be adjusted. It is possible to effectively prevent the ink from scattering when leaving the ejection surface of the head. Further, by changing the interval at which the flat elastic blade is divided by the slit according to the shape of the recording head, a cleaning effect according to the shape of the recording head can be obtained.
［実施例］ 以下、図を参照して本発明の実施例を参考例とともに
説明する。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings together with a reference example.
第１図（Ａ），（Ｂ）は本発明の参考例のブレードの
構造を示し、第１図（Ｃ）は本発明の実施例のブレード
の構造を示している。1A and 1B show the structure of a blade according to a reference example of the present invention, and FIG. 1C shows the structure of a blade according to an example of the present invention.
各図に示すようにブレード41〜43は先端部にスリット
を入れるこにとより先端部分を複数部分に分割してあ
る。As shown in each figure, the blades 41 to 43 are further divided into a plurality of portions by making a slit at the tip.
このような構成によれば、たとえば第１図（Ａ）のブ
レード41の場合、分割部分のすきまに毛管現象によりイ
ンクを吸収して回収効率を向上させることが可能になる
とともに、ブレード先端部のモーメントアームを短くす
ることができるのでブレード離脱時のインク飛散が防止
される。According to such a configuration, for example, in the case of the blade 41 in FIG. 1 (A), it is possible to improve the collection efficiency by absorbing the ink by the capillary phenomenon in the gap of the divided portion, and to improve the collection efficiency. Since the moment arm can be shortened, ink scattering at the time of blade detachment is prevented.
また、第１図（Ｂ）のブレード42のように分割部分を
こまかくすることにより、記録ヘッドの凹凸の微細な部
分までブレードが入り込めるので、ヘッドのノズル面を
すみずみまで清掃できる。Further, by finely dividing the divided portion like the blade 42 in FIG. 1 (B), the blade can enter even the fine portion of the unevenness of the recording head, so that the nozzle surface of the head can be cleaned everywhere.
実施例の第１図（Ｃ）のブレード43では、ブレードの
分割部分の回動モーメントを必要に応じて強め、清掃効
果を高めるため、切り込みスリットの長さを多くとり、
しかもヘッド形状に応じて分割幅を変更するようにして
ヘッドに応じた清掃効果を得ることができる。In the blade 43 of FIG. 1 (C) of the embodiment, the length of the slit is increased in order to increase the turning moment of the divided portion of the blade as necessary and to enhance the cleaning effect.
Moreover, the cleaning effect according to the head can be obtained by changing the division width according to the head shape.
以上のように、ブレード先端の分割の方法は、各種ヘ
ッドの構造、目的とするインク飛散防止効果、その他の
条件に応じて変更することができる。As described above, the method of dividing the blade tip can be changed according to the structure of various heads, the desired effect of preventing ink scattering, and other conditions.
［発明の効果］ 以上の説明から明らかなように、本発明によれば、一
の記録ヘッドの吐出面を清掃する一の平板状弾性ブレー
ドであって、摺擦によって前記吐出面を清掃する平板状
弾性ブレードを備えたインクジェット記録装置におい
て、前記平板状弾性ブレードは、少なくとも前記記録ヘ
ッドの吐出面に接触する先端部がスリットにより異なる
間隔で複数に分けられている構造を採用したので、平板
状弾性ブレードのスリットにインクを吸収するととも
に、平板状弾性ブレードの回動モーメントを調整できる
ため、ブレードが記録ヘッドの吐出面を離れる際のイン
クの飛散を効果的に防止することができる。また、記録
ヘッドの形状に応じてスリットにより平板状弾性ブレー
ドを分ける間隔を異ならせることにより、記録ヘッドの
形状に応じた清掃効果が得られ、良好に清掃を行なうこ
とができる。[Effects of the Invention] As is apparent from the above description, according to the present invention, there is provided one flat elastic blade for cleaning the ejection surface of one recording head, and the flat elastic blade for cleaning the ejection surface by rubbing. In the ink jet recording apparatus provided with a flat elastic blade, the flat elastic blade adopts a structure in which at least a tip portion contacting the ejection surface of the recording head is divided into a plurality of slits at different intervals. Since the ink can be absorbed by the slits of the elastic blade and the rotational moment of the flat elastic blade can be adjusted, it is possible to effectively prevent the ink from scattering when the blade leaves the ejection surface of the recording head. Further, by changing the interval at which the flat elastic blade is divided by the slit according to the shape of the recording head, a cleaning effect according to the shape of the recording head can be obtained, and cleaning can be performed satisfactorily.
第１図（Ａ），（Ｂ）は本発明の参考例のブレードの構
造を示した斜視図、第１図（Ｃ）は本発明の実施例のブ
レードの構造を示した斜視図、第２図は従来のインクジ
ェット記録装置の記録ヘッドの構成を示した斜視図、第
３図は従来の清掃用ブレードの斜視図、第４図はブレー
ドによる清掃動作を示した斜視図、第５図は従来のブレ
ード動作を示した説明図である。 １……記録ヘッド、６……ノズル 41〜43……ブレード1 (A) and 1 (B) are perspective views showing the structure of a blade according to a reference example of the present invention, FIG. 1 (C) is a perspective view showing the structure of a blade according to an example of the present invention, and FIG. FIG. 3 is a perspective view showing a configuration of a recording head of a conventional ink jet recording apparatus, FIG. 3 is a perspective view of a conventional cleaning blade, FIG. 4 is a perspective view showing a cleaning operation by the blade, and FIG. FIG. 5 is an explanatory diagram showing the blade operation of FIG. 1 ... recording head, 6 ... nozzles 41 to 43 ... blade
フロントページの続き (56)参考文献 特開 昭58−25966（ＪＰ，Ａ) 実開 昭58−128034（ＪＰ，Ｕ) 実開 昭54−124542（ＪＰ，Ｕ)Continuation of the front page (56) References JP-A-58-25966 (JP, A) JP-A-58-128034 (JP, U) JP-A-54-124542 (JP, U)
Claims (1)
板状弾性ブレードであって、摺擦によって前記吐出面の
清掃する平板状弾性ブレードを備えたインクジェット記
録装置において、 前記平板状弾性ブレードは、少なくとも前記記録ヘッド
の吐出面に接触する先端部がスリットにより異なる間隔
で複数に分けられていることを特徴とするインクジェッ
ト記録装置。1. An ink jet recording apparatus comprising: a flat elastic blade for cleaning a discharge surface of a recording head, wherein the flat elastic blade cleans the discharge surface by rubbing. The ink jet recording apparatus according to claim 1, wherein at least a tip of the blade that contacts the ejection surface of the recording head is divided into a plurality of slits at different intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60241383A JP2614207B2 (en) | 1985-10-30 | 1985-10-30 | Ink jet recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60241383A JP2614207B2 (en) | 1985-10-30 | 1985-10-30 | Ink jet recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62101448A JPS62101448A (en) | 1987-05-11 |
| JP2614207B2 true JP2614207B2 (en) | 1997-05-28 |
Family
ID=17073465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60241383A Expired - Lifetime JP2614207B2 (en) | 1985-10-30 | 1985-10-30 | Ink jet recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2614207B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007125882A (en) * | 2005-10-05 | 2007-05-24 | Fujifilm Corp | Inkjet recording device |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0376309B1 (en) * | 1988-12-30 | 1995-08-16 | Canon Kabushiki Kaisha | Ink jet recording apparatus |
| JP2667277B2 (en) | 1990-03-14 | 1997-10-27 | キヤノン株式会社 | Ink jet recording device |
| US5300958A (en) * | 1992-02-28 | 1994-04-05 | Hewlett-Packard Company | Method and apparatus for automatically cleaning the printhead of a thermal inkjet cartridge |
| US6137504A (en) * | 1993-05-20 | 2000-10-24 | Canon Kabushiki Kaisha | Wiping and recovery of an ink jet head with inclined discharge port surface |
| JPH0623999A (en) * | 1993-06-16 | 1994-02-01 | Seikosha Co Ltd | Ink jet printer |
| US5500660A (en) * | 1993-06-24 | 1996-03-19 | Hewlett-Packard Company | Wiper for inkjet printhead nozzle member |
| JPH07137270A (en) * | 1993-11-16 | 1995-05-30 | Canon Inc | Ink jet recorder |
| US5555461A (en) * | 1994-01-03 | 1996-09-10 | Xerox Corporation | Self cleaning wiper blade for cleaning nozzle faces of ink jet printheads |
| JP3247545B2 (en) * | 1994-06-24 | 2002-01-15 | キヤノン株式会社 | Ink jet recording device |
| US6158840A (en) * | 1997-03-25 | 2000-12-12 | Seiko Epson Corporation | Ink jet recording apparatus |
| US6866362B2 (en) | 2003-03-25 | 2005-03-15 | Toshiba Tec Kabushiki Kaisha | Ink Jet recording apparatus having maintenance means for cleaning an ink jet recording head |
| US20040257396A1 (en) | 2003-06-19 | 2004-12-23 | Toshiba Tec Kabushiki Kaisha | Ink jet head cleaning apparatus and ink jet recording apparatus |
| US7044580B2 (en) | 2003-11-18 | 2006-05-16 | Toshiba Tec Kabushiki Kaisha | Ink jet recording head maintenance apparatus and ink jet recording apparatus |
| JP6939389B2 (en) * | 2017-10-17 | 2021-09-22 | 京セラドキュメントソリューションズ株式会社 | Head cleaning mechanism and inkjet recording device equipped with it |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54124542U (en) * | 1978-02-20 | 1979-08-31 | ||
| US4340897A (en) * | 1981-07-29 | 1982-07-20 | Pitney Bowes Inc. | Cleaning device for writing heads used in ink jet recorders and printers |
| JPS58128034U (en) * | 1982-02-25 | 1983-08-30 | 三洋電機株式会社 | inkjet printer |
-
1985
- 1985-10-30 JP JP60241383A patent/JP2614207B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007125882A (en) * | 2005-10-05 | 2007-05-24 | Fujifilm Corp | Inkjet recording device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62101448A (en) | 1987-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |