JPS63118260A - Ink jet printer - Google Patents
Ink jet printerInfo
- Publication number
- JPS63118260A JPS63118260A JP25486587A JP25486587A JPS63118260A JP S63118260 A JPS63118260 A JP S63118260A JP 25486587 A JP25486587 A JP 25486587A JP 25486587 A JP25486587 A JP 25486587A JP S63118260 A JPS63118260 A JP S63118260A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- porous member
- filter
- nozzle
- ink tank
- 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.)
- Granted
Links
- 238000007639 printing Methods 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000011148 porous material Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 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
Landscapes
- Ink Jet (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明はインクジェットプリンタに関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an inkjet printer.
１従来の技術」
従来、特開昭５０−９９４３６号公報の第３１閃に示さ
れる様に、インクタンク内全体に多孔性材料を配置しヘ
ッドへのインク供給路内に空気がはいることを防止した
ものがあった。1. Prior Art Conventionally, as shown in the 31st issue of Japanese Unexamined Patent Publication No. 50-99436, a porous material is placed throughout the ink tank to prevent air from entering the ink supply path to the head. There were things that could have been prevented.
【発明が解決しようとする問題点」
しかし、多孔性材料をインクタンク内に挿入する前に多
孔性材料内のゴミを洗浄により完全に除去するのは困難
であり、前述の従来技術では多孔性材料内のゴミがヘッ
ド内へ侵入するのを避けられず、ノズルの目詰り等の原
因となり、良好なインク滴噴射ができないという問題点
を有す。[Problems to be Solved by the Invention] However, it is difficult to completely remove dust in the porous material by cleaning before inserting the porous material into the ink tank, and the above-mentioned conventional technology There is a problem in that dust in the material cannot be avoided from entering the head, causing clogging of the nozzles and the like, making it impossible to eject good ink droplets.
そこで本発明はこのような問題点を解決するもので、そ
の目的とするところは、多孔質部材内のゴミを印刷ヘッ
ド内に侵入させることなく確実に防１トレ、良好なイン
ク滴噴射が可能なインクジェットプリンタを供給するこ
とにある。The present invention is intended to solve these problems, and its purpose is to reliably prevent dust from entering the print head within the porous member and to enable good ink droplet ejection. Our goal is to supply inkjet printers that are of the highest quality.
１問題点を解決するための手段」
本発明インクジェットプリンタは、ノズルよりインク）
＾を噴射する印刷ヘッドと、該印刷ヘッドと一体的に形
成され多孔質部材が充填されたインクタンクと、該イン
クタンクに設けられた空気孔とをＡＩしたインクジェッ
トプリンタにおいて、ｌ′前記インクタンクの前記印刷
ヘッドへの１１日：Ｉにはフィルタが設けられており、
１ｌｉｌ記多孔質部材は１１τＩ記インクタンク内の
前記フィルタに密接する位置まで充填されていることを
特徴とする。1) The inkjet printer of the present invention uses ink from the nozzle.
In an inkjet printer in which a print head for ejecting ^, an ink tank integrally formed with the print head and filled with a porous member, and an air hole provided in the ink tank are AI-equipped, the ink tank l' 11 days to said print head of: I is provided with a filter,
The ink tank is characterized by being filled with the porous member 11 to a position close to the filter in the ink tank.
１作 用Ｊ
本発明の上記の構成によれば、インクタンクに充填され
ている多孔質部材に含浸されるインクが毛細管力により
ノズルに供給され、多孔質部材内のゴミはインクタンク
の印刷ヘッドへの…１１に設けられているフィルタに捕
えられ、印刷ヘッド内に侵入することが防１１；される
。1 Effect J According to the above configuration of the present invention, the ink impregnated into the porous member filled in the ink tank is supplied to the nozzle by capillary force, and the dust in the porous member is removed by the print head of the ink tank. It is captured by a filter provided at 11 and prevented from entering the print head.
【実施例］
本発明の実施例を図面に従って説明する。第１図は本発
明の一実施例の要部斜視図で、Ｊｆｉ２図は第１図の実
施例の側断面図である。[Example] An example of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of essential parts of an embodiment of the present invention, and FIG. Jfi2 is a side sectional view of the embodiment of FIG. 1.
図において、１４はプラスチックの射出成形により製造
されたノズル１４ａを有する印刷ヘッド。In the figure, 14 is a print head having a nozzle 14a manufactured by injection molding of plastic.
４８はインク引出のエネルギーを与える圧電素子。48 is a piezoelectric element that provides energy for drawing out the ink.
１７はインクタンクで多孔質部材５１が充填されており
、そこにインク５０が含浸されている。印刷へラド１４
とインクタンク１７は一体部月または接着によって一体
化されている。１７ｂはインクタンク１７に設けられた
空気取入１」であり１口［能な限り細くしかも長いこと
がインクの蒸発を防止するのに有効である。 −（ンク
タンク１７の印刷ヘッド１４への出口にはフィルタ４９
が設けられている。多孔質部材５１は、図から明らかな
ように、インタンク内のフィルタ４９に密接する位置ま
で充填されている。更に多孔質部材５１は、印刷ヘッド
１４のノズル１４ａの毛細管圧力よりも弱い毛細管圧力
を有し、しかもどのような姿勢でもインク５０がノズル
１４ａより流出しないだけの負圧を発生するような材質
・形状を有す。Reference numeral 17 denotes an ink tank filled with a porous member 51, which is impregnated with ink 50. printing hellad 14
The ink tank 17 and the ink tank 17 are integrated by an integral part or adhesive. Reference numeral 17b denotes an air intake 1 provided in the ink tank 17, which has one opening [making it as thin and long as possible is effective in preventing ink evaporation. - (A filter 49 is installed at the outlet of the tank tank 17 to the print head 14.
is provided. As is clear from the figure, the porous member 51 is filled up to a position close to the filter 49 in the in-tank. Furthermore, the porous member 51 is made of a material that has a capillary pressure that is weaker than the capillary pressure of the nozzle 14a of the print head 14, and that generates enough negative pressure to prevent the ink 50 from flowing out from the nozzle 14a in any posture. It has a shape.
次に印刷へラド１４とインクタンク１７の動作を説明す
る０図示されていない制御回路の働きにより圧電素子４
８が駆動され、印刷ヘッド１４のノズル１４ａからイン
ク５０が射出され印字が行なわれると、インク消費に伴
い多孔質部材５１内のインクは毛細管力により除々に印
刷ヘラｌ７１４の方向へ移動する。それに伴い空気取入
口１７ｂからは空気がインクタンク１７内に流入する。Next, we will explain the operation of the printing head 14 and the ink tank 17.The piezoelectric element 4 is
8 is driven and ink 50 is ejected from the nozzle 14a of the print head 14 to perform printing. As the ink is consumed, the ink within the porous member 51 gradually moves toward the printing spatula 1714 due to capillary force. Accordingly, air flows into the ink tank 17 from the air intake port 17b.
多孔質部材５１に含浸されるインク５０が毛細管力によ
りノズル１４ａへ供給される際、多孔質部材内のゴミは
フィルタ４９に捕えられ、印刷ヘッド１４内に侵入する
ことは防止される。これによりノズル１４ａの目詰りが
防止され、良好なインク摘噴射が可能となる。また、ノ
ズル１４＆より弱い毛細管力を有する多孔質部材５１が
フィルタ４９に密接することにより、フィルタ４９との
間に空間がある場合と比べ印刷ヘッド１４へのインクの
供給が円滑に行われ、ノズル１４ａでのインク切れがな
く高品質のインクジェット印刷が可能となる。更に多孔
質部材５１はノズル１４ａより弱い毛細管力を有するこ
とにより、毛細管力によりヘッド１４がインク５０で満
たされるので空気がノズル、１４ ａよりヘッド１４内
へ吸い込まれることがなく、空気により・ｆンク滴噴射
が悪影響を受けることがない、また、多孔質部材５１は
インク５０がノズル１４ａより流出しない程度の負圧を
有するので、ノズル１４ａよりインクが垂れることはな
い。When the ink 50 impregnated into the porous member 51 is supplied to the nozzle 14a by capillary force, dust within the porous member is caught by the filter 49 and is prevented from entering the print head 14. This prevents clogging of the nozzle 14a and enables good ink ejection. Further, since the nozzle 14 and the porous member 51 having a weaker capillary force are in close contact with the filter 49, ink is supplied to the print head 14 more smoothly than in the case where there is a space between the nozzle 14 and the filter 49, and the nozzle High quality inkjet printing is possible without running out of ink at 14a. Furthermore, since the porous member 51 has a capillary force weaker than that of the nozzle 14a, the head 14 is filled with the ink 50 due to the capillary force, so air is not sucked into the head 14 from the nozzle 14a, and the air Ink droplet ejection is not adversely affected, and since the porous member 51 has a negative pressure to the extent that the ink 50 does not flow out from the nozzle 14a, no ink drips from the nozzle 14a.
尚、多孔質部材５１を用いずにどのような姿勢でも負圧
を発生する機は各種考えられる。まずインクタンク１７
の板厚を極薄にして、適度のバネ性により負圧を発生さ
せる方法、インクタンク１７をポリエチレンとポリ塩化
ビニリデンの積層フィルムで作ったインク袋にし、内部
にバネ力を有する弾性体を入れて負圧を発生させる方法
等が考えられる。Note that there are various possible devices that can generate negative pressure in any posture without using the porous member 51. First, ink tank 17
The ink tank 17 is made of an ink bag made of a laminated film of polyethylene and polyvinylidene chloride, and an elastic body with spring force is placed inside. A possible method is to generate negative pressure by
［発明の効果」
以上述べたように本発明によれば、インクタンクの印刷
ヘッドへの出「ｌにはフィルタが設けられており、多孔
質部材はインクタンク内のフィルタに密接する位置まで
充填されていることにより。[Effects of the Invention] As described above, according to the present invention, a filter is provided at the outlet of the ink tank to the print head, and the porous member is filled up to a position in the ink tank that is in close contact with the filter. By being.
充填前に完全に除去するのがむずかしい多孔質部材内の
ゴミを印刷ヘッド内に侵入させることなく確実に防止し
、これによりノズルの目詰りを防止し、良好なインク滴
噴射を可能とする。また、多孔質部材がフィルタにｖＥ
接することにより、フィルタとの間に空間がある場合と
比べ印刷ヘッドへのインクの供給が円滑に行われ、ノズ
ルでのインク切れがなく高品質のインクジェット印刷が
可能となる。尚、多孔質部材がノズルより弱い毛細管力
を有することにより、毛細管力によりヘッドがインクで
満たされるので空気がノズルよりヘッド内へ吸い込まれ
ることがなく、空気によりインク滴噴射が悪影響を受け
ることがない。To surely prevent dust in a porous member, which is difficult to completely remove before filling, from entering a print head, thereby preventing clogging of nozzles, and enabling good ink droplet jetting. In addition, the porous member has vE on the filter.
By making contact with the filter, ink can be supplied to the print head more smoothly than when there is a space between the filter and the nozzle, and high-quality inkjet printing is possible without running out of ink at the nozzle. Furthermore, since the porous member has a capillary force that is weaker than that of the nozzle, the head is filled with ink due to the capillary force, so air is not sucked into the head through the nozzle, and the ejection of ink droplets is not adversely affected by the air. do not have.
第１図は本発明の一実施例の要部斜視図。 第２図はｆ５１図の実施例の側断面図。 １４・・・・印刷ヘッド １４ａ・・・ノズル １７・・・・インクタンク １７ｂ・・・空気取入口 ４９・・ ・ ・フィルタ ５０・・・・インク ５１・・・・多孔質部材 以 上 FIG. 1 is a perspective view of essential parts of an embodiment of the present invention. FIG. 2 is a side sectional view of the embodiment shown in FIG. f51. 14...Print head 14a... nozzle 17... Ink tank 17b...Air intake 49... Filter 50... ink 51...Porous member that's all
Claims (1)
刷ヘッドと一体的に形成され多孔質部材が充填されたイ
ンクタンクと、該インクタンクに設けられた空気孔とを
具備したインクジェットプリンタにおいて、前記インク
タンクの前記印刷ヘッドへの出口にはフィルタが設けら
れており、前記多孔質部材は前記インクタンク内の前記
フィルタに密接する位置まで充填されていることを特徴
とするインクジェットプリンタ。 ２）前記多孔質部材は前記ノズルより弱い毛細管力を有
することを特徴とする特許請求の範囲第１項記載のイン
クジェットプリンタ。[Claims] 1) A print head that ejects ink droplets from a nozzle, an ink tank formed integrally with the print head and filled with a porous member, and an air hole provided in the ink tank. In the inkjet printer, a filter is provided at an outlet of the ink tank to the print head, and the porous member is filled up to a position in the ink tank that is in close contact with the filter. Inkjet printer. 2) The inkjet printer according to claim 1, wherein the porous member has a weaker capillary force than the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25486587A JPS63118260A (en) | 1987-10-09 | 1987-10-09 | Ink jet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25486587A JPS63118260A (en) | 1987-10-09 | 1987-10-09 | Ink jet printer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16408380A Division JPS5741969A (en) | 1980-11-21 | 1980-11-21 | Small sized printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63118260A true JPS63118260A (en) | 1988-05-23 |
| JPH0341351B2 JPH0341351B2 (en) | 1991-06-21 |
Family
ID=17270915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25486587A Granted JPS63118260A (en) | 1987-10-09 | 1987-10-09 | Ink jet printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63118260A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02198862A (en) * | 1989-01-28 | 1990-08-07 | Canon Inc | Liquid injection recording head |
| EP0510665A2 (en) * | 1991-04-25 | 1992-10-28 | Canon Kabushiki Kaisha | Ink jet cartridge with an improved ink tank and ink jet apparatus equipped with the cartridge |
| US5457485A (en) * | 1992-03-18 | 1995-10-10 | Canon Kabushiki Kaisha | Ink jet recording apparatus |
| US5604523A (en) * | 1993-10-04 | 1997-02-18 | Canon Kabushiki Kaisha | Ink container, an ink jet cartridge and ink jet recording apparatus |
| US6109742A (en) * | 1993-05-13 | 2000-08-29 | Canon Kabushiki Kaisha | Ink tank, head cartridge and ink jet printing apparatus |
| US6196673B1 (en) | 1997-04-04 | 2001-03-06 | Seiko Epson Corporation | Ink-jet recording device |
| WO2007148824A1 (en) | 2006-06-22 | 2007-12-27 | Canon Kabushiki Kaisha | Ink set, ink cartridge set, ink jet recording method, recording unit and ink jet recording apparatus |
| WO2007148823A1 (en) | 2006-06-22 | 2007-12-27 | Canon Kabushiki Kaisha | Recording head, recording unit, ink jet recorder, ink jet recording method, and ink set |
-
1987
- 1987-10-09 JP JP25486587A patent/JPS63118260A/en active Granted
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02198862A (en) * | 1989-01-28 | 1990-08-07 | Canon Inc | Liquid injection recording head |
| EP0510665A2 (en) * | 1991-04-25 | 1992-10-28 | Canon Kabushiki Kaisha | Ink jet cartridge with an improved ink tank and ink jet apparatus equipped with the cartridge |
| EP0510665B1 (en) * | 1991-04-25 | 1997-08-27 | Canon Kabushiki Kaisha | Ink jet cartridge with an improved ink tank and ink jet apparatus equipped with the cartridge |
| US5457485A (en) * | 1992-03-18 | 1995-10-10 | Canon Kabushiki Kaisha | Ink jet recording apparatus |
| US6109742A (en) * | 1993-05-13 | 2000-08-29 | Canon Kabushiki Kaisha | Ink tank, head cartridge and ink jet printing apparatus |
| US5604523A (en) * | 1993-10-04 | 1997-02-18 | Canon Kabushiki Kaisha | Ink container, an ink jet cartridge and ink jet recording apparatus |
| US6196673B1 (en) | 1997-04-04 | 2001-03-06 | Seiko Epson Corporation | Ink-jet recording device |
| WO2007148824A1 (en) | 2006-06-22 | 2007-12-27 | Canon Kabushiki Kaisha | Ink set, ink cartridge set, ink jet recording method, recording unit and ink jet recording apparatus |
| WO2007148823A1 (en) | 2006-06-22 | 2007-12-27 | Canon Kabushiki Kaisha | Recording head, recording unit, ink jet recorder, ink jet recording method, and ink set |
| US7883199B2 (en) | 2006-06-22 | 2011-02-08 | Canon Kabushiki Kaisha | Ink set, ink cartridge set, ink jet recording method, recording unit, and ink jet recording apparatus |
| US7909448B2 (en) | 2006-06-22 | 2011-03-22 | Canon Kabushiki Kaisha | Recording head, recording unit, ink jet recording apparatus, ink jet recording method, and ink set |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0341351B2 (en) | 1991-06-21 |
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