JPH0576429B2 - - Google Patents
Info
- Publication number
- JPH0576429B2 JPH0576429B2 JP6057284A JP6057284A JPH0576429B2 JP H0576429 B2 JPH0576429 B2 JP H0576429B2 JP 6057284 A JP6057284 A JP 6057284A JP 6057284 A JP6057284 A JP 6057284A JP H0576429 B2 JPH0576429 B2 JP H0576429B2
- Authority
- JP
- Japan
- Prior art keywords
- ink
- ink container
- movable wall
- recording head
- container
- 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
- 239000007788 liquid Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009736 wetting Methods 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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
Landscapes
- Ink Jet (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、液体を噴射し、飛翔液滴を形成して
記録を行なう液体噴射記録装置のためのインク容
器に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an ink container for a liquid jet recording device that performs recording by jetting liquid and forming flying droplets.
従来の液体噴射記録装置においては、インク容
器から記録ヘツドへのインク供給は、記録ヘツド
のノズル内のインク圧力を正圧に設定すると、ヘ
ツドを駆動していない時にも、インク吐出口（オ
リフイス）よりインクのボタ落ちが生じ、さら
に、ヘツド駆動時、インク吐出状態にある時に
も、オリフイス面のインクによる濡れが発生し、
正常なインク液滴の吐出が得られなくなる等の欠
点があるので、インク供給圧力を負圧に設定する
為、インク容器内のインク液面を低い場所に位置
させ、実際のインク供給はインク供給管、記録ヘ
ツド等のインク流路内におけるインクの毛細管現
象に依存していた。この様なインク供給機構で
は、インク供給圧力を負圧に制御しなければなら
ず、インク容器と記録ヘツドの設定位置、形状等
が限定され、液体噴射記録装置に制限があつた。
In conventional liquid jet recording devices, ink is supplied from the ink container to the recording head by setting the ink pressure in the nozzles of the recording head to positive pressure, so that the ink ejection openings (orifices) are supplied even when the head is not being driven. This causes ink to drip, and even when the head is driven or ink is being ejected, the orifice surface becomes wet due to ink.
Since there are drawbacks such as not being able to eject normal ink droplets, in order to set the ink supply pressure to negative pressure, the ink liquid level in the ink container is located at a low place, and the actual ink supply is controlled by the ink supply. It relied on the capillary action of the ink within the ink flow path of the tube, recording head, etc. In such an ink supply mechanism, the ink supply pressure must be controlled to a negative pressure, and the positions and shapes of the ink container and the recording head are limited, which places restrictions on the liquid jet recording apparatus.
本発明の目的は、従来の欠点を除去し、簡単な
構造により、所定の圧力に制御することのできる
インク容器を提供することである。
An object of the present invention is to eliminate the conventional drawbacks and provide an ink container that has a simple structure and can control a predetermined pressure.
本発明のかかる目的は、記録ヘツドへ供給され
るインクを収容するインク容器において、該イン
ク容器は前記インクの消費に応じて前記インク容
器の容量を減少する方向に可動する可動壁を有
し、該可動壁と前記インク容器内壁との摺動部分
における摩擦力によつて前記記録ヘツドに供給さ
れるインク供給圧力が制御されることを特徴とす
るインク容器によつて達成される。
An object of the present invention is to provide an ink container for storing ink to be supplied to a recording head, the ink container having a movable wall that is movable in a direction to reduce the capacity of the ink container in accordance with consumption of the ink. This is achieved by an ink container characterized in that the ink supply pressure supplied to the recording head is controlled by the frictional force at the sliding portion between the movable wall and the inner wall of the ink container.
本発明のインク容器を図面に基づいて詳細に説
明する。第１図ａ，ｂ，ｃは本発明インク容器の
一実施例の断面図である。各図において、１はイ
ンク容器本体、２は可動壁でインク容器本体内を
摺動される。３はＯリングでシールである。４は
インク排出口である。
The ink container of the present invention will be explained in detail based on the drawings. FIGS. 1a, 1b and 1c are sectional views of an embodiment of an ink container of the present invention. In each figure, 1 is an ink container main body, and 2 is a movable wall that is slid within the ink container main body. 3 is an O-ring seal. 4 is an ink discharge port.
第１図ａに示されるように、インク容器本体１
の中に満たされたインクは、可動壁２によつて蓋
をされており、可動壁２に組込まれたＯリング３
によつて、インク容器外へのインクの流出及びイ
ンク容器外部からの空気の混入を阻止している。
液体噴射記録装置の記録ヘツドを駆動することに
より、インク容器内のインクはインク排出口４を
通つて記録ヘツドへ導入される。インクの消費に
伴なつて、可動壁２は片面をインクに、もう一方
の面を外気に接触させた状態で移動していき、第
１図ｂの状態を経て、第１図ｃに示す状態でイン
ク容器からのインクの排出を完了する。インク容
器本体１と可動壁２に挾まれたＯリング３はイン
ク容器本体１と摺動するが、密閉しているので、
インクと外気を完全に遮断しており、インクの特
性は安定している。第２図に図示する様に、オイ
ルシール状のＯリング５も使用可能である。さら
に、第３図に示すようにゴム樹脂等の弾性を有す
る材料でカツプ状に縁を一体成形することにより
可動壁６を構成するも可能である。本発明のイン
ク容器において、インク容器本体１とＯリング
３，５、可動壁６との間には締め付けがあるため
に摩擦力が存在し、この摩擦力がインク容器内に
密封されたインクの消費による体積の減少に対し
て反力として働くため、インク容器内には負圧が
生じる。Ｏリング３，５及び可動壁６の締め付け
を適宜選択することにより、インクに負荷される
負圧を任意に制御することができる。また、イン
ク容器本体１の可動壁移動方向の内側寸法を平行
またはテーパー状とすることによりＯリング３等
によるシール部の締め付けを変化せしめ、インク
消費に伴なう可動壁６の移動によつてインク容器
内に収納されたインクに発生する負圧の特性を任
意に決定することができる。さらに第３図の弾性
材料で形成された可動壁６では壁面をダイヤフラ
ム状にすることにより、壁面の変形によるインク
容器内容積の変化を可動壁６の移動による負圧の
発生の特性に付加することができる。 As shown in FIG. 1a, an ink container body 1
The ink filled inside is covered by a movable wall 2, and an O-ring 3 built into the movable wall 2
This prevents ink from flowing out of the ink container and air from entering from outside the ink container.
By driving the recording head of the liquid jet recording apparatus, ink in the ink container is introduced into the recording head through the ink discharge port 4. As the ink is consumed, the movable wall 2 moves with one side in contact with the ink and the other side in contact with the outside air, passing through the state shown in Fig. 1b, and then reaching the state shown in Fig. 1c. Complete the discharge of ink from the ink container. The O-ring 3 sandwiched between the ink container body 1 and the movable wall 2 slides on the ink container body 1, but since it is sealed,
The ink is completely isolated from the outside air, and the ink properties are stable. As shown in FIG. 2, an oil seal-shaped O-ring 5 can also be used. Furthermore, as shown in FIG. 3, the movable wall 6 can be constructed by integrally molding the edge into a cup shape from an elastic material such as rubber resin. In the ink container of the present invention, frictional force exists between the ink container main body 1, the O-rings 3 and 5, and the movable wall 6 due to the tightness, and this frictional force causes the ink sealed in the ink container to Negative pressure is generated within the ink container because it acts as a reaction force against the volume reduction due to consumption. By appropriately selecting the tightness of the O-rings 3 and 5 and the movable wall 6, the negative pressure applied to the ink can be controlled as desired. In addition, by making the inner dimensions of the ink container main body 1 parallel or tapered in the moving direction of the movable wall, the tightening of the sealing portion by the O-ring 3 etc. can be changed, and the movement of the movable wall 6 due to ink consumption can be changed. The characteristics of the negative pressure generated in the ink contained in the ink container can be arbitrarily determined. Further, in the movable wall 6 made of an elastic material shown in FIG. 3, by making the wall surface into a diaphragm shape, the change in the internal volume of the ink container due to the deformation of the wall surface is added to the characteristic of generating negative pressure due to the movement of the movable wall 6. be able to.
叙上の構成により、液体噴射記録装置の記録ヘ
ツドに対するインク容器内のインク水位の程度に
かかわらず、記録ヘツドへのインク供給圧力を任
意の値に設定することができ、記録ヘツドのイン
ク吐出口からのインクのボタ落ち、オリフイス面
の濡れ等による液滴吐出特性に対する悪影響を排
除することに成功した。さらに、液体噴射記録装
置を設計する際のインク容器設置位置、形状等に
対する制約を除去し、第１図〜第３図に示したよ
うないわゆるカートリツジ式のインク容器のみな
らず定置式のインク容器に対してもインク補給機
構を付加することにより適用できる。さらに、記
録ヘツドとインク容器が一体形成された液体噴射
記録装置にも適用でき、記録ヘツドの駆動方式も
限定されず、あらゆるインクジエツト方式の記録
ヘツドに対して実施することも可能である。 With the configuration described above, the ink supply pressure to the recording head can be set to an arbitrary value regardless of the level of ink in the ink container relative to the recording head of the liquid jet recording device, and the ink ejection opening of the recording head can be set to an arbitrary value. We succeeded in eliminating the negative effects on droplet ejection characteristics caused by ink dripping from the ink and wetting of the orifice surface. Furthermore, we have removed restrictions on the ink container installation position, shape, etc. when designing a liquid jet recording device, and we have developed not only so-called cartridge-type ink containers as shown in FIGS. 1 to 3, but also stationary ink containers. It can also be applied to other systems by adding an ink replenishment mechanism. Further, the present invention can be applied to a liquid jet recording device in which a recording head and an ink container are integrally formed, and the driving method of the recording head is not limited, and the present invention can be applied to any inkjet type recording head.
本発明のインク容器によれば、記録ヘツドのイ
ンク供給圧力が制御された、常に、品質の安定し
た液体噴射記録装置が得られる。
According to the ink container of the present invention, it is possible to obtain a liquid jet recording device in which the ink supply pressure to the recording head is controlled and the quality is always stable.
第１図ａ，ｂ，ｃは本発明の一実施例のインク
容器の断面図である。第２図、第３図は、本発明
の他の実施例のインク容器の断面図である。第１
図ａはインク容器がインクで充満している状態
図、第１図ｂは駆動時のインク消費過程状態図、
第１図ｃはインク排出完了時を示す状態図であ
る。
１……インク容器本体、２……可動壁、３，５
……Ｏリング、４……インク排出口、６……可動
壁。
FIGS. 1a, 1b and 1c are sectional views of an ink container according to an embodiment of the present invention. FIGS. 2 and 3 are cross-sectional views of ink containers according to other embodiments of the present invention. 1st
Figure a is a state diagram when the ink container is filled with ink, Figure 1 b is a state diagram of the ink consumption process during driving,
FIG. 1c is a state diagram showing when ink discharge is completed. 1... Ink container body, 2... Movable wall, 3, 5
...O-ring, 4...Ink discharge port, 6...Movable wall.
Claims (1)
ンク容器において、 該インク容器は前記インクの消費に応じて前記
インク容器の容量を減少する方向に可動する可動
壁を有し、該可動壁と前記インク容器内壁との摺
動部分における摩擦力によつて前記記録ヘツドに
供給されるインク供給圧力が制御されることを特
徴とするインク容器。[Scope of Claims] 1. An ink container for storing ink to be supplied to a recording head, the ink container having a movable wall that moves in a direction to reduce the capacity of the ink container according to consumption of the ink, An ink container characterized in that the ink supply pressure supplied to the recording head is controlled by frictional force at a sliding portion between the movable wall and the inner wall of the ink container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6057284A JPS60204355A (en) | 1984-03-30 | 1984-03-30 | Ink container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6057284A JPS60204355A (en) | 1984-03-30 | 1984-03-30 | Ink container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60204355A JPS60204355A (en) | 1985-10-15 |
| JPH0576429B2 true JPH0576429B2 (en) | 1993-10-22 |
Family
ID=13146106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6057284A Granted JPS60204355A (en) | 1984-03-30 | 1984-03-30 | Ink container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60204355A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0838563A (en) * | 1993-06-11 | 1996-02-13 | Ndm Acquisition Corp | Medical pump device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444473A (en) * | 1990-11-15 | 1995-08-22 | Canon Kabushiki Kaisha | Ink jet recording apparatus |
| JP3015165B2 (en) * | 1991-08-30 | 2000-03-06 | キヤノン株式会社 | INK CONTAINER, PRINT HEAD UNIT USING THE SAME, AND PRINTING APPARATUS MOUNTING THE SAME |
| JP3105047B2 (en) * | 1991-11-18 | 2000-10-30 | キヤノン株式会社 | INK CONTAINER, PRINT HEAD UNIT USING THE SAME, AND PRINTING APPARATUS MOUNTING THE SAME |
| JPH05318756A (en) * | 1992-05-22 | 1993-12-03 | Canon Inc | Ink container |
| EP1186423B1 (en) * | 2000-09-12 | 2004-08-11 | Riso Kagaku Corporation | Ink container |
-
1984
- 1984-03-30 JP JP6057284A patent/JPS60204355A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0838563A (en) * | 1993-06-11 | 1996-02-13 | Ndm Acquisition Corp | Medical pump device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60204355A (en) | 1985-10-15 |
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