JPH0465787B2 - - Google Patents
Info
- Publication number
- JPH0465787B2 JPH0465787B2 JP11491185A JP11491185A JPH0465787B2 JP H0465787 B2 JPH0465787 B2 JP H0465787B2 JP 11491185 A JP11491185 A JP 11491185A JP 11491185 A JP11491185 A JP 11491185A JP H0465787 B2 JPH0465787 B2 JP H0465787B2
- Authority
- JP
- Japan
- Prior art keywords
- ink
- thin film
- head
- heat
- film plate
- 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
Links
- 239000010409 thin film Substances 0.000 claims description 10
- 239000003595 mist Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007779 soft material 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
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14161—Structure having belt or drum with holes filled with ink
Landscapes
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は印刷装置に関し、特にバブルジエツト
の原理を応用したノンインパクトプリンタに関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printing device, and particularly to a non-impact printer applying the bubble jet principle.
従来、この種のインクジエツトプリンタは１つ
のノズルにて１ケのインク滴を形成する、いわゆ
るオンデイマンドインクジエツトが主流であつ
た。
Conventionally, this type of inkjet printer has been mainly a so-called on-demand inkjet printer in which one ink droplet is formed with one nozzle.
その他にはたえずミストを発生させ、静電界の
バランスで印字形成を行うミストプリンタがあつ
た。 Another type of printer is a mist printer that constantly generates mist and uses the balance of electrostatic fields to form prints.
上述した従来のインクジエツトプリンタでは目
づまりが発生しやすく信頼性にとぼしい。それに
インク滴が大きいので、記録媒体に特殊加工をし
て印字品質を向上しなければならなかつた。イン
ク乾燥防止のため、ノズルにキヤツプ、クリーナ
等特異な機構が必要でもあつた。又ミストプリン
タでは、ミストにより周辺がぬれてしまつて静電
界のバランスをくずし、印字が不鮮明となること
が多く、これも信頼性に難があつた。
The conventional inkjet printer described above is prone to clogging and has poor reliability. Additionally, because the ink droplets are large, the recording medium had to be specially processed to improve print quality. To prevent the ink from drying out, the nozzle also required special mechanisms such as a cap and a cleaner. In addition, in the case of a mist printer, the surrounding area is wetted by the mist, which upsets the balance of the electrostatic field and often results in unclear printing, which also poses a problem in reliability.
本発明は目づまりのない、しかも普通紙に容易
に印刷できる高信頼性、高印字品質が得られるプ
リンタを提供するものである。 The present invention provides a printer that does not cause clogging and can easily print on plain paper with high reliability and high print quality.
本発明は数多くの細かい孔を有する薄膜プレー
トを感熱ヘツドに密着せしめ、感熱ヘツド側の該
薄膜プレートと該感熱ヘツドの横にインクタンク
を設けたことを特徴とするミストオンデイマンド
ヘツドである。
The present invention is a mist-on-demand head characterized in that a thin film plate having many fine holes is brought into close contact with a heat-sensitive head, and an ink tank is provided next to the thin film plate on the heat-sensitive head side and the heat-sensitive head.
次に本発明の一実施例について図面を参照して
説明する。
Next, an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例のシリアル型プリン
タに用いた印字ヘツドの原理図である。 多数の
細かい孔１ａを有す薄膜プレート１は感熱ヘツド
２に密着している。感熱ヘツド２側に感熱ヘツド
２をはさんで薄膜プレート１にスペーサ３、タン
ク保護板４があり、感熱ヘツドとの間はシール５
にて封止され、これらによりインクタンク６が形
成されている。スペーサ３は薄く、インクの表面
張力によりプレート１にインクが充填される。 FIG. 1 is a diagram showing the principle of a print head used in a serial type printer according to an embodiment of the present invention. A thin film plate 1 having a large number of fine holes 1a is in close contact with a heat sensitive head 2. There are a spacer 3 and a tank protection plate 4 on a thin film plate 1 sandwiching the thermal head 2 on the thermal head 2 side, and a seal 5 between the thermal head 2 and the thermal head 2.
The ink tank 6 is formed by these. The spacer 3 is thin, and the plate 1 is filled with ink due to the surface tension of the ink.
実施例において、感熱ヘツド２に通電されると
発熱体が熱せられてインクとの界面で気泡が発生
し、細かい孔１ａの中のインクは飛び出してプラ
テン７に巻き付いている記録媒体８に記録され
る。発熱体とインク界面との気泡発生の原理はバ
ブルジエツトとして公知の事実である。一つの発
熱体に対しプレート１の多数の孔１ａが対応して
るため、ミスト状インク滴となり、インク量が過
剰とならず普通紙に印字でき、高印字品質が得ら
れる。又、多くのノズルを共有しているため、目
づまりの確率が下がり、高信頼性が得られる。 In the embodiment, when the thermal head 2 is energized, the heating element is heated and bubbles are generated at the interface with the ink, and the ink in the fine holes 1a flies out and is recorded on the recording medium 8 wrapped around the platen 7. Ru. The principle of bubble generation between the heating element and the ink interface is a fact known as bubble jet. Since a large number of holes 1a of the plate 1 correspond to one heating element, ink droplets are formed in a mist form, and printing can be performed on plain paper without excessive ink amount, resulting in high printing quality. Furthermore, since many nozzles are shared, the probability of clogging is reduced and high reliability is achieved.
インクタンク６は片方向のみでもよい。又、シ
ール５を柔らかい材料で作り、薄膜プレート１を
移動させることにより、インク充填が効率よく行
われ、さらに目づまりの確率が下がる。 The ink tank 6 may be provided in only one direction. Furthermore, by making the seal 5 from a soft material and moving the thin film plate 1, ink filling is performed efficiently and the probability of clogging is further reduced.
薄膜プレートはエツチングや、エレクトロホー
ムにより数ミクロンから数百ミクロンの孔径で、
厚さ数十ミクロンから数百ミクロンまで容易に作
れる。又スペーサ３、保護板４もこれらの方法を
用いれば、同時に作ることもでき、また保護板４
とシール５とを一体で作ることもできる。本発明
の原理を用いれば、マルチヘツドにも容易に応用
出来る。マルチ発熱体の感熱ヘツドを用いその分
細かい孔を増し、インクタンクは一つでよい。又
カラー化も容易であることは自明である。 Thin film plates are made with pores ranging from a few microns to several hundred microns by etching or electroforming.
It can be easily made from tens of microns to hundreds of microns thick. Also, the spacer 3 and the protection plate 4 can be made at the same time by using these methods, and the protection plate 4 can also be made at the same time.
It is also possible to make the seal 5 and the seal 5 integrally. Using the principles of the present invention, it can be easily applied to multiheads. A thermal head with multiple heating elements is used, and the number of fine holes is increased accordingly, so only one ink tank is required. It is also obvious that colorization is easy.
本発明は以上説明したように、目づまりのない
しかも普通紙に容易に印刷でき、高信頼性でかつ
高品質の印字を行うことができる効果を有するも
のである。
As explained above, the present invention has the effect of being able to easily print on plain paper without clogging, and to perform highly reliable and high quality printing.
第１図は本発明の一実施例であるシリアル型プ
リンタに用いた印字ヘツドの原理図である。
１……数多く細かい孔を有する薄膜プレート、
１ａ……薄膜プレートの孔、２……感熱ヘツド、
３……スペーサ、４……保護板、５……シール、
６……インクタンク、７……プラテン、８……記
録媒体。
FIG. 1 is a diagram showing the principle of a print head used in a serial type printer, which is an embodiment of the present invention. 1...Thin film plate with many fine holes,
1a... Hole of thin film plate, 2... Heat sensitive head,
3... Spacer, 4... Protective plate, 5... Seal,
6... Ink tank, 7... Platen, 8... Recording medium.
Claims (1)
熱ヘツドに密着させ、感熱ヘツド側の該薄膜プレ
ートと該感熱ヘツドの横にインクタンクを設けた
ことを特徴とするミストオンデイマンドヘツド。1. A mist-on-demand head characterized in that a thin film plate having many fine holes is brought into close contact with a heat-sensitive head, and an ink tank is provided next to the thin film plate on the heat-sensitive head side and the heat-sensitive head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11491185A JPS61272160A (en) | 1985-05-28 | 1985-05-28 | Mist on demand head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11491185A JPS61272160A (en) | 1985-05-28 | 1985-05-28 | Mist on demand head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61272160A JPS61272160A (en) | 1986-12-02 |
| JPH0465787B2 true JPH0465787B2 (en) | 1992-10-21 |
Family
ID=14649713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11491185A Granted JPS61272160A (en) | 1985-05-28 | 1985-05-28 | Mist on demand head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61272160A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2248434A1 (en) * | 1997-09-30 | 1999-03-30 | Asahi Kogaku Kogyo Kabushiki Kaisha | Ink-transfer type printer |
-
1985
- 1985-05-28 JP JP11491185A patent/JPS61272160A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61272160A (en) | 1986-12-02 |
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