JPH0757544B2 - Liquid jet recording device - Google Patents
Liquid jet recording deviceInfo
- Publication number
- JPH0757544B2 JPH0757544B2 JP59060581A JP6058184A JPH0757544B2 JP H0757544 B2 JPH0757544 B2 JP H0757544B2 JP 59060581 A JP59060581 A JP 59060581A JP 6058184 A JP6058184 A JP 6058184A JP H0757544 B2 JPH0757544 B2 JP H0757544B2
- Authority
- JP
- Japan
- Prior art keywords
- recording head
- electrical contact
- carriage
- surface portion
- flat surface
- 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
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
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/34—Bodily-changeable print heads or carriages
Description
【発明の詳細な説明】 〔技術分野〕 本発明は液体噴射（インクジェット）記録装置の改良に
関する。Description: TECHNICAL FIELD The present invention relates to an improvement in a liquid jet (inkjet) recording apparatus.
一般に液体噴射記録装置においては、液体噴射記録ヘッ
ド（以下記録ヘッドと称す）の保守・交換等の理由によ
り記録ヘッドがキャリッジに対し容易に着脱できること
が望ましい。この為、従来記録ヘッドに駆動電力及び信
号を供給するに、記録ヘッドとキャリッジに夫々電気的
接点を設け、記録ヘッドがキャリッジに搭載された時に
両者の電気的接点が接触し記録ヘッドに駆動電力及び信
号の供給が行われることが提案されている。この時、記
録ヘッドはキャリッジの上に搭載される形式のものが多
く、この為、記録ヘッド側の電気的接点は該記録ヘッド
の下部に設けられるのが普通である。更にインクを噴射
するオリフィスの存するオリフィス面と前記電気的接点
を有する電気配線基板とが同一平面上に形成された記録
ヘッドにおいては、上述した理由によりオリフィス面よ
り下側に電気的接点が設けられるためにオリフィスより
こぼれ落ちるインクにより電気的接点が汚されまた電気
的接点が腐蝕したり接触不良を起こし、液体（インク）
が吐出しなかったり、吐出状態が不安定になるという不
都合を来たした。Generally, in a liquid ejecting recording apparatus, it is desirable that the recording head can be easily attached to and detached from a carriage for reasons such as maintenance and replacement of a liquid ejecting recording head (hereinafter referred to as recording head). Therefore, in order to supply the drive power and the signal to the conventional print head, the print head and the carriage are respectively provided with electrical contacts, and when the print head is mounted on the carriage, the two electrical contacts come into contact with each other and the drive power is applied to the print head. And it is proposed that the supply of signals be carried out. At this time, most of the recording heads are of a type mounted on a carriage, and therefore the electrical contacts on the recording head side are usually provided below the recording head. Further, in the recording head in which the orifice surface having the orifice for ejecting ink and the electric wiring substrate having the electric contact are formed on the same plane, the electric contact is provided below the orifice surface for the above-mentioned reason. Because of this, the ink that spills from the orifice contaminates the electrical contacts, corrodes the electrical contacts, and causes poor contact, resulting in liquid (ink).
However, there is an inconvenience that the ink does not discharge or the discharge state becomes unstable.
本発明の目的は、オリフィスから液体を吐出する記録ヘ
ッドを載置するための載置部を有するキャリッジを備え
る液体噴射記録装置において、記録ヘッドとキャリッジ
とに設けられた電気的接点への液体の付着を防止するこ
とにある。An object of the present invention is to provide a liquid jet recording apparatus including a carriage having a mounting portion for mounting a recording head that ejects liquid from an orifice, in which liquid to an electrical contact provided on the recording head and the carriage is It is to prevent adhesion.
この目的は、本発明によれば、オリフィスから液体を吐
出する記録ヘッドを載置するための載置部を有するキャ
リッジを備える液体噴射記録装置において、前記記録ヘ
ッドは、前記オリフィスを配する前面、該前面と対向す
る背面と、前記載置部に載置される底面、該底面に対向
する上面とは異なる側平面部に第１電気的接点を有し、
前記キャリッジは、前記記録ヘッドを前記載置部に載置
する際に前記記録ヘッドの前記側平面部に対向して前記
載置部から突出する突出平面部と、該突出平面部の、前
記側平面部に対向する面部に、前記第１電気的接点と接
触可能に配される第２電気的接点を有し、前記記録ヘッ
ドの側平面部及びこれと対向する前記キャリッジの突出
平面部は、前記記録ヘッドを前記載置部に載置する際に
前記第１電気的接点と第２電気的接点とを覆うことによ
り、前記第１電気的接点及び前記第２電気的接点への外
部からの液体の付着を防止し得ることを特徴とする液体
噴射記録装置を提供することで達成される。According to the present invention, according to the present invention, in a liquid jet recording apparatus including a carriage having a mounting portion for mounting a recording head that ejects liquid from an orifice, the recording head has a front surface on which the orifice is arranged, A back surface facing the front surface, a bottom surface placed on the mounting portion, and a first electrical contact on a side plane portion different from the top surface facing the bottom surface,
The carriage includes a protruding flat surface portion that faces the side flat surface portion of the recording head when the recording head is mounted on the mounting surface portion and that projects from the mounting surface portion, and the side surface of the protruding flat surface portion. The surface section facing the flat section has a second electrical contact arranged so as to be able to contact the first electrical contact, and the side flat section of the recording head and the protruding flat section of the carriage facing the side flat section, By covering the first electrical contact and the second electrical contact when the recording head is mounted on the mounting portion, the first electrical contact and the second electrical contact are externally connected. The present invention is achieved by providing a liquid jet recording apparatus which is capable of preventing liquid from adhering.
以下図面に基づいて本発明の実施例を具体的かつ詳細に
説明する。Hereinafter, embodiments of the present invention will be described specifically and in detail with reference to the drawings.
第１図は本実施例に係る液体噴射記録装置２の斜視図で
ある。図において、４はプラテン軸６を軸としてＡ方向
に回動可能はプラテン、８は印字用紙の如き被記録材
（以下用紙と称す）であり、プラテン４が回転すると同
方向に回転する。10,12は案内軸であり、該案内軸10,12
に対してキャリッジ14がＢ方向に摺動可能に設けられ
る。16はキャリッジ14に駆動電力及び信号を伝送するフ
レキシブルケーブルである。18はキャリッジ14に搭載さ
れる液体噴射用記録ヘッド（以下記録ヘッドと称する）
である。FIG. 1 is a perspective view of the liquid jet recording apparatus 2 according to this embodiment. In the figure, reference numeral 4 denotes a platen rotatable about the platen shaft 6 in the direction A, and reference numeral 8 denotes a recording material such as printing paper (hereinafter referred to as paper), which rotates in the same direction as the platen 4 rotates. 10 and 12 are guide shafts, and the guide shafts 10 and 12
On the other hand, the carriage 14 is provided slidably in the B direction. Reference numeral 16 is a flexible cable for transmitting drive power and signals to the carriage 14. Reference numeral 18 denotes a liquid jet recording head mounted on the carriage 14 (hereinafter referred to as a recording head).
Is.
第２図は本発明第１実施例に係るキャリッジ14及び記録
ヘッド18の詳細図である。該記録ヘッド18では、キャリ
ッジ側から伝送されてくる電力及び信号を受ける為の記
録ヘッド側電気的接点20（以下第１接点と称す）が、オ
リフィスを配する前面、該前面と対向する背面と、前記
載置部に載置される底面、該底面に対向する上面とは異
なる側平面部に設けられる。24はインクの如き液体が入
る液溜、26はインクの如き吐出液滴である。FIG. 2 is a detailed view of the carriage 14 and the recording head 18 according to the first embodiment of the present invention. In the recording head 18, a recording head side electric contact 20 (hereinafter referred to as a first contact) for receiving electric power and a signal transmitted from the carriage side has a front surface on which an orifice is arranged, a rear surface facing the front surface, and The bottom surface mounted on the mounting portion, and the side flat surface portion different from the top surface facing the bottom surface. Reference numeral 24 is a liquid reservoir containing a liquid such as ink, and 26 is a discharge droplet such as ink.
又キャリッジ14には、記録ヘッドを載置部に載置した際
に記録ヘッドの側平面部に対向する（第２図）ように、
載置面32に突出して備えられる突出平面部28を設け、該
突出平面部28には記録ヘッド18の第１接点20と接触する
キャリッジ側電気的接点30（以下第２接点と称す）を設
ける。該キャリッジ14に記録ヘッド18を搭載するには、
キャリッジ14の第２接点30に記録ヘッド18の第１接点20
が接触するように、キャリッジ14の上面32に記録ヘッド
18を載置する。印字を行なうにあたって、キャリッジ14
に設けられたフレキシブルケーブル16を介して供給され
る駆動電力及び制御信号は、前者はそのまま、後者はキ
ャリッジ内制御回路（図示せず）により駆動信号電圧に
変換されて、第１接点20に供給された後、該第１接点20
に接触する第２接点30に伝送されオリフィス22から液体
（インク）が噴射される。Further, when the recording head is mounted on the mounting portion, the carriage 14 faces the side flat surface portion of the recording head (FIG. 2).
A projecting flat surface portion 28 provided so as to project on the mounting surface 32 is provided, and a carriage side electrical contact 30 (hereinafter referred to as a second contact point) that contacts the first contact point 20 of the recording head 18 is provided on the projecting flat surface portion 28. . To mount the recording head 18 on the carriage 14,
The first contact 20 of the recording head 18 is connected to the second contact 30 of the carriage 14.
On the upper surface 32 of the carriage 14 so that
Place 18. Carriage 14
The drive power and the control signal supplied via the flexible cable 16 provided in the former are converted into the drive signal voltage by the control circuit (not shown) in the carriage, and the latter are supplied to the first contact 20. And then the first contact 20
The liquid (ink) is ejected from the orifice 22 by being transmitted to the second contact point 30 that contacts with.
第３図は本発明第２実施例に係る、この第２実施例の特
徴とするところは、オリフィス22より上方に第１接点20
が形成される記録ヘッド18をキャリッジ14に搭載するた
めに突出平面28に形成される第２接点30が、第１実施例
に比して高位置に配され、これに伴い突出平面部28の高
さも第１実施例より高いものとなる。この第２実施例に
よれば、オリフィス22より第１接点20及び第２接点30が
上方に位置するため、オリフィス22より流出するインク
の汚れを更に防止し得る。FIG. 3 relates to the second embodiment of the present invention. The feature of the second embodiment is that the first contact 20 is located above the orifice 22.
The second contact point 30 formed on the projecting flat surface 28 for mounting the recording head 18 on which the recording head 18 is formed on the carriage 14 is arranged at a higher position as compared with the first embodiment, and accordingly, the second contact point 30 of the projecting flat surface portion 28 is formed. The height is also higher than that of the first embodiment. According to the second embodiment, since the first contact 20 and the second contact 30 are located above the orifice 22, the contamination of the ink flowing out from the orifice 22 can be further prevented.
本発明は、以上詳述したようになり、記録ヘッドのオリ
フィスを配する前面、該前面と対向する背面、前記載置
部に載置される底面、該底面に対向する上面とは異なる
側平面部に第１電気的接点を有し、記録ヘッドを前記設
置部に設置する際に記録ヘッドの前記側平面部に対向し
てキャリッジの前記載置部から突出する突出平面部に、
前記第１電気的接点と接触可能に配される第２電気接点
を有するので、オリフィスからこぼれ落ちる液体や飛散
微小液滴の、前記第１電気的接点及び前記第２電気的接
点への付着を防止することができる。The present invention has been described in detail above, and includes a front surface on which the orifice of the recording head is arranged, a back surface facing the front surface, a bottom surface mounted on the mounting portion, and a side plane different from the top surface facing the bottom surface. A projection plane portion that has a first electrical contact at a portion and that faces the side plane portion of the recording head when the recording head is installed in the installation portion and that projects from the mounting portion of the carriage.
Since the second electric contact is provided so as to be in contact with the first electric contact, the liquid or the spilled microdroplets spilling from the orifice can be attached to the first electric contact and the second electric contact. Can be prevented.
また、記録ヘッドの側平面部及び載置部から突出する突
出平面部の対向する２つの平面で電気的接点を覆うの
で、記録ヘッドの載置部への装着を容易にしつつ確実に
飛散微小液滴などの、第１電気接点及び第２電気的接点
への付着を防止できる。Further, since the electric contacts are covered by the two opposing flat surfaces of the side flat surface portion of the recording head and the projecting flat surface portion protruding from the mounting portion, it is possible to easily attach the recording head to the mounting portion and to reliably scatter the minute liquid. It is possible to prevent a drop or the like from adhering to the first electric contact and the second electric contact.
【図面の簡単な説明】 第１図は本実施例に係る液体噴射記録装置の斜視図、第
２図は本発明の第１の実施例を示す模式的斜視図、第３
図は本発明の第２の実施例を示す模式的斜視図である。 ２……液体噴射記録装置、14……キャリッジ、18……液
体噴射記録ヘッド、20……記録ヘッド側電気的接点、22
……オリフィス、30……キャリッジ側電気的接点、34…
…溝、36……障壁、38……溝である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a liquid jet recording apparatus according to the present embodiment, FIG. 2 is a schematic perspective view showing a first embodiment of the present invention, and FIG.
The drawing is a schematic perspective view showing a second embodiment of the present invention. 2 ... Liquid jet recording device, 14 ... Carriage, 18 ... Liquid jet recording head, 20 ... Recording head side electrical contact, 22
...... Orifice, 30 …… Carriage side electrical contact, 34…
… Grooves, 36 …… barriers, 38 …… grooves.
Claims (3)
を載置するための載置部を有するキャリッジを備える液
体噴射記録装置において、 前記記録ヘッドは、前記オリフィスを配する前面、該前
面と対向する背面と、前記載置部に載置される底面、該
底面に対向する上面とは異なる側平面部に第１電気的接
点を有し、 前記キャリッジは、前記記録ヘッドを前記載置部に載置
する際に前記記録ヘッドの前記側平面部に対向して前記
載置部から突出する突出平面部と、該突出平面部の、前
記側平面部に対向する面部に、前記第１電気的接点と接
触可能に配される第２電気的接点を有し、 前記記録ヘッドの側平面部及びこれと対向する前記キャ
リッジの突出平面部は、前記記録ヘッドを前記載置部に
載置する際に前記第１電気的接点と第２電気的接点とを
覆うことにより、前記第１電気的接点及び前記第２電気
的接点への外部からの液体の付着を防止し得ることを特
徴とする液体噴射記録装置。1. A liquid jet recording apparatus comprising a carriage having a mounting portion for mounting a recording head for ejecting liquid from an orifice, wherein the recording head is a front surface on which the orifice is arranged, and the recording head faces the front surface. A rear surface, a bottom surface to be placed on the mounting section, and a first electrical contact on a side plane section different from the upper surface facing the bottom surface; and the carriage mounts the recording head on the mounting section. When the recording head is placed, the protruding flat surface portion that faces the side flat surface portion of the recording head and projects from the mounting portion, and the first electrical contact on the surface portion of the protruding flat surface portion that faces the side flat surface portion. Has a second electrical contact disposed so as to be capable of contacting the recording head, and the side flat surface portion of the recording head and the protruding flat surface portion of the carriage facing the side flat surface portion are disposed when the recording head is mounted on the mounting portion. The first electrical contact and the second electrical contact By covering the point, the liquid jet recording apparatus characterized by capable of preventing the adhesion of liquid from the outside to the first electrical contact and said second electrical contact.
とは、それぞれの接触により前記記録ヘッドへの駆動電
力の伝達を可能にすることを特徴とする特許請求の範囲
第１項に記載の液体噴射記録装置。2. The first electric contact and the second electric contact enable transmission of drive power to the recording head by contacting each other. The liquid jet recording apparatus according to item 1.
とは、それぞれの接触により前記記録ヘッドへの信号の
伝達を可能とすることを特徴とする特許請求の範囲第１
項に記載の液体噴射記録装置。3. The first electrical contact and the second electrical contact enable transmission of a signal to the recording head by contacting each other.
The liquid jet recording apparatus according to the item 1.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59060581A JPH0757544B2 (en) | 1984-03-30 | 1984-03-30 | Liquid jet recording device |
| US06/715,413 US4635080A (en) | 1984-03-30 | 1985-03-25 | Liquid injection recording apparatus |
| DE3546913A DE3546913C2 (en) | 1984-03-30 | 1985-03-29 | Ink jet print head |
| DE3511699A DE3511699C2 (en) | 1984-03-30 | 1985-03-29 | Liquid jet recording device |
| GB08508495A GB2158778B (en) | 1984-03-30 | 1985-04-01 | Ink-jet printers |
| SG319/91A SG31991G (en) | 1984-03-30 | 1991-05-02 | Liquid injection recording head and liquid injection recording apparatus |
| HK399/91A HK39991A (en) | 1984-03-30 | 1991-05-23 | Liquid injection recording head and liquid injection recording apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59060581A JPH0757544B2 (en) | 1984-03-30 | 1984-03-30 | Liquid jet recording device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6050627A Division JP2567567B2 (en) | 1994-03-22 | 1994-03-22 | Liquid ejector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60204337A JPS60204337A (en) | 1985-10-15 |
| JPH0757544B2 true JPH0757544B2 (en) | 1995-06-21 |
Family
ID=13146346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59060581A Expired - Lifetime JPH0757544B2 (en) | 1984-03-30 | 1984-03-30 | Liquid jet recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0757544B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55150372A (en) * | 1979-05-11 | 1980-11-22 | Seiko Epson Corp | Printer |
| JPS58104648U (en) * | 1982-01-13 | 1983-07-16 | 横河電機株式会社 | Inkjet head mechanism |
-
1984
- 1984-03-30 JP JP59060581A patent/JPH0757544B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60204337A (en) | 1985-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |