JPH0197653A - Recording head - Google Patents
Recording headInfo
- Publication number
- JPH0197653A JPH0197653A JP25552687A JP25552687A JPH0197653A JP H0197653 A JPH0197653 A JP H0197653A JP 25552687 A JP25552687 A JP 25552687A JP 25552687 A JP25552687 A JP 25552687A JP H0197653 A JPH0197653 A JP H0197653A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- porous member
- nozzle
- nozzles
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 230000005587 bubbling Effects 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14032—Structure of the pressure chamber
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
【発明の詳細な説明】
弦」し也野−
本発明は、記録ヘッド、より詳細には、ノズル近傍に発
熱体を具備し、該発熱体によってインクを加熱して気泡
を発生させてインクを噴射させる所謂バブル利用の記録
ヘッドに関する。[Detailed Description of the Invention] Shiyano - The present invention includes a recording head, more specifically, a heating element near a nozzle, and heats the ink with the heating element to generate bubbles to ink. This invention relates to a recording head that uses so-called bubbles to eject water.
ｌ米挟豊
ノズル近傍のインク中に配設した発熱体に通電してイン
ク中に気泡を発生させ、この気泡が破裂する際にノズル
よりインクの小滴を噴出飛翔させ。A heating element disposed in the ink near the nozzle is energized to generate bubbles in the ink, and when the bubbles burst, small droplets of ink are ejected from the nozzle.
この飛翔するインクの小滴を利用して記録を行う所謂バ
ブル利用の記録装置は公知であるが、従来の斯種記録ヘ
ッドは、ノズル部にインクを供給するために細いインク
供給流路を形成する必要があり、フィルター等を必要と
するが、このフィルターが目詰りを起す等の問題があっ
た（特開昭５８−１８７３６４号公報）、また、有孔フ
ィルムと、この有孔フィルムの孔にインクを供給する手
段と。A so-called bubble-based recording device that performs recording using these flying ink droplets is well known, but conventional recording heads of this type form a narrow ink supply channel to supply ink to the nozzle section. This requires a filter, etc., but this filter has problems such as clogging (Japanese Unexamined Patent Publication No. 187364/1982). and means for supplying ink to.
該孔に供給されたインクに熱エネルギーを供給する手段
とを有し、該孔よりインク滴を選択的に吐出させて記録
を行うバブル利用の記録装置も提案されているが（特開
昭６１−２１９６５１号公報）。A bubble-based recording device has also been proposed, which has a means for supplying thermal energy to the ink supplied to the hole, and performs recording by selectively ejecting ink droplets from the hole (Japanese Patent Application Laid-Open No. 1983-1991). -219651).
この記録装置は、前記フィルムが記録ヘッドの表面をこ
するため、耐久性の点で問題があった。This recording device had a problem in terms of durability because the film rubbed the surface of the recording head.
目 的
本発明は、上述のごとき実情に鑑みてなされたもので、
特に、インクを加熱して気泡を発生させ、この気泡の体
積変化を利用してインクを噴射させる記録ヘッドにおい
て、ノズル部へのインクの供給を安定に行うことのでき
るヘッドを提供することを目的としてなされたものであ
る。Purpose The present invention was made in view of the above-mentioned circumstances.
In particular, an object of the present invention is to provide a head that can stably supply ink to a nozzle part in a recording head that heats ink to generate bubbles and uses the change in volume of the bubbles to eject ink. This was done as a.
監−一腹
本発明は、上記目的を達成するために、連通した微小孔
を内部に多数持つ多孔質部材と、該多孔質部材に形成さ
れたノズル部と、該ノズル部に前記微小孔を通して毛細
管現象によりインクを供給するインクタンクと、前記ノ
ズル部に供給されたインクを加熱する発熱素子とを有し
、該発熱素子にてインクを加熱して気泡を発生させ、イ
ンクを前記ノズル部より噴射し、記録紙上に記録を行う
ようにした事を特徴としたものである。以下１本発明の
実施例に基いて説明する６
第１図は、本発明による記録ヘッドの要部拡大断面斜視
図で、図中、１は多孔質部材、２は記録用ノズル、３は
基板、４は発熱素子、５はインク供給タンク、６はイン
クで、該インク６は、インク供給タンク５より、ノズル
２が形成された多孔質部材１の中を毛細管現象により通
ってノズル部２に供給される。ノズル部２に供給された
インク 、は発熱素子４が発熱された時内部に気泡を生
じ、この気泡に押されてノズル部２より外部（図では上
方）に噴出していく、ノズル部２は、斯様にしてインク
が噴出した後、また、周囲の多孔質部材よりインクが供
給され、次の記録に備えることができる。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention includes a porous member having a large number of communicating micropores therein, a nozzle portion formed in the porous member, and a method for passing the micropores through the nozzle portion. It has an ink tank that supplies ink through capillary action, and a heating element that heats the ink supplied to the nozzle. It is characterized by being sprayed and recording on recording paper. 1 is an enlarged cross-sectional perspective view of the main parts of a recording head according to the present invention, in which 1 is a porous member, 2 is a recording nozzle, and 3 is a substrate. , 4 is a heating element, 5 is an ink supply tank, and 6 is ink. The ink 6 passes from the ink supply tank 5 through the porous member 1 in which the nozzle 2 is formed by capillary action to the nozzle part 2. Supplied. The ink supplied to the nozzle section 2 generates air bubbles inside when the heating element 4 generates heat, and is pushed by the air bubbles and is ejected from the nozzle section 2 to the outside (upward in the figure). After the ink is ejected in this manner, ink is again supplied from the surrounding porous member to prepare for the next recording.
勲−ｍ＝（
以上の説明から明らかなように、本発明によると微細な
インク流路を形成する必要がなく、また、ノズルが形成
された多孔質部材がフィルターの役目をしているので、
内部の目詰りがなく、特に、マルチノズル化を容易に行
うことができる。- m = (As is clear from the above explanation, according to the present invention, there is no need to form fine ink channels, and the porous member in which the nozzle is formed acts as a filter.
There is no internal clogging, and in particular, multi-nozzle configuration can be easily performed.
第１図は１本発明の一実施例を説明するための要部拡大
断面斜視図である。
１・・・多孔質部材、２・・・記録用ノズル、３・・・
基板、４・・・発熱素子、５・・・インク供給タンク、
６・・・インク。FIG. 1 is an enlarged sectional perspective view of a main part for explaining an embodiment of the present invention. 1... Porous member, 2... Recording nozzle, 3...
Substrate, 4... Heat generating element, 5... Ink supply tank,
6...Ink.
Claims (1)
質部材に形成されたノズル部と、該ノズル部に前記微小
孔を通して毛細管現象によりインクを供給するインクタ
ンクと、前記ノズル部に供給されたインクを加熱する発
熱素子とを有し、該発熱素子にてインクを加熱して気泡
を発生させ、インクを前記ノズル部より噴射するように
した事を特徴とする記録ヘッド。a porous member having a large number of communicating micropores therein; a nozzle portion formed in the porous member; an ink tank that supplies ink to the nozzle portion by capillary action through the micropores; and an ink tank that supplies ink to the nozzle portion. 1. A recording head comprising: a heating element that heats the ink, the heating element heats the ink to generate bubbles, and the ink is ejected from the nozzle portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25552687A JPH0197653A (en) | 1987-10-08 | 1987-10-08 | Recording head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25552687A JPH0197653A (en) | 1987-10-08 | 1987-10-08 | Recording head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0197653A true JPH0197653A (en) | 1989-04-17 |
Family
ID=17279963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25552687A Pending JPH0197653A (en) | 1987-10-08 | 1987-10-08 | Recording head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0197653A (en) |
-
1987
- 1987-10-08 JP JP25552687A patent/JPH0197653A/en active Pending
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