JPH0631930A - Inkjet recording apparatus - Google Patents

Inkjet recording apparatus

Info

Publication number
JPH0631930A
JPH0631930A JP21083592A JP21083592A JPH0631930A JP H0631930 A JPH0631930 A JP H0631930A JP 21083592 A JP21083592 A JP 21083592A JP 21083592 A JP21083592 A JP 21083592A JP H0631930 A JPH0631930 A JP H0631930A
Authority
JP
Japan
Prior art keywords
recording
recording liquid
recording head
liquid storage
ink
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
Application number
JP21083592A
Other languages
Japanese (ja)
Inventor
Makoto Misawa
誠 三澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP21083592A priority Critical patent/JPH0631930A/en
Publication of JPH0631930A publication Critical patent/JPH0631930A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To realize an inkjet recording apparatus which prevents leaking of a recording liquid from a recording head nozzle when a recording liquid container part is installed or detached and mixing of air bubbles into a recording head part, and accordingly is highly reliable with reduced number of parts. CONSTITUTION:A recording head part 1 is constituted of a recording head 2 and a guide 15 coupled to the recording head 2 for holding a recording liquid container part 3. An elastic sealing member 5 is set in the upper part of the recording head 2, having a needle-like conduit 11. A recording liquid absorber 4 is filled in the recording liquid container part 3 to hold a recording liquid. A hollow needle 6 is fixed to an elastic fixed member 9 in the lower part of the container part 3. While the container part 3 is loaded in the recording head part 1, the hollow needle 6 is inserted into the needle-like conduit 11 of the elastic sealing member 5, and a recording liquid flows from the absorber 4 through the hollow needle 6 to be supplied into a sub container part 10.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、インクジェット記録装
置、特に、記録ヘッドノズルからの記録液の漏洩阻止に
考慮を払ったインクジェット記録装置に関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording apparatus, and more particularly to an ink jet recording apparatus in which leakage of recording liquid from recording head nozzles is prevented.

【0002】[0002]

【従来の技術】従来のインクジェット記録装置等におい
て、記録ヘッド部への記録液は、記録ヘッド部から離れ
た位置に設置された記録液収納部から、記録液供給管に
より供給されていた。しかし、最近は、記録ヘッド部と
記録液収納部とを近接して配置し、インク収納部を分離
可能に構成したインクジェット記録装置が採用されてい
る。このような記録液供給方式は、記録液収納部から記
録ヘッド部までの記録液供給管を必要とせず、また、記
録液の補給も、記録液収納部の交換により可能であるか
ら、簡単であり、便利であるということができる。しか
し、記録ヘッド部と記録液収納部とが近接しているた
め、供給される記録液の圧力を適正に保ったり、記録ヘ
ッド部のノズルからの記録液の漏洩防止を図る必要があ
る。
2. Description of the Related Art In a conventional ink jet recording apparatus or the like, a recording liquid is supplied to a recording head portion by a recording liquid supply pipe from a recording liquid storage portion installed at a position apart from the recording head portion. However, recently, an ink jet recording apparatus has been adopted in which the recording head section and the recording liquid storage section are arranged close to each other and the ink storage section is separable. Such a recording liquid supply system does not require a recording liquid supply pipe from the recording liquid storage unit to the recording head unit, and the recording liquid can be replenished by replacing the recording liquid storage unit. Yes, it can be said to be convenient. However, since the recording head unit and the recording liquid storage unit are close to each other, it is necessary to maintain the pressure of the supplied recording liquid appropriately and to prevent the leakage of the recording liquid from the nozzles of the recording head unit.

【0003】このような方法における記録液補給装置の
記録ヘッド部からの記録液の漏洩防止が可能な構造が、
特開昭63−13749号公報に記載されている。この
公報に記載されたインク供給装置は、インクカートリッ
ジと記録ヘッド部の双方の連結部に、インクカートリッ
ジの装着により開き、分離により閉じることができる弁
を設けたものである。図3は、その説明図であり、図3
(A)は分離状態、図3(B)は装着状態を示す断面図
である。図中、20はインクカートリッジ、21はフロ
ントケース、22はバックケース、23は袋体、24は
カバー、25はピストン、26は連通孔、27は復帰バ
ネ、28はスポンジ状弾性部材、29,30は連結部、
31は係止用ピン、32は弁、33は弁ストッパー、3
4はインク溜め部である。図3(A)に示す分離状態に
おいては、インクカートリッジ20側の連結部29は、
その開口に設けられたピストン25が、復帰バネ27に
より押し付けられて、ピストン25に設けられた連通孔
26が塞がれるので、袋体23に収納されたインクが流
出することはない。また、記録ヘッド部側のフロントケ
ース21に設けられた連結部30は、弁25の弾性によ
り封止され、同様にインク供給路側からのインクの漏洩
も防止されている。
A structure capable of preventing the leakage of the recording liquid from the recording head portion of the recording liquid replenishing device in such a method is
It is described in JP-A-63-13749. In the ink supply device described in this publication, a valve that can be opened by mounting the ink cartridge and closed by separation is provided at both connecting portions of the ink cartridge and the recording head portion. FIG. 3 is an explanatory diagram thereof and FIG.
3A is a sectional view showing a separated state, and FIG. 3B is a sectional view showing a mounted state. In the figure, 20 is an ink cartridge, 21 is a front case, 22 is a back case, 23 is a bag, 24 is a cover, 25 is a piston, 26 is a communication hole, 27 is a return spring, 28 is a sponge-like elastic member, 29, 30 is a connecting portion,
31 is a locking pin, 32 is a valve, 33 is a valve stopper, 3
Reference numeral 4 is an ink reservoir. In the separated state shown in FIG. 3A, the connecting portion 29 on the ink cartridge 20 side is
The piston 25 provided in the opening is pressed by the return spring 27 and the communication hole 26 provided in the piston 25 is closed, so that the ink stored in the bag body 23 does not flow out. Further, the connecting portion 30 provided on the front case 21 on the recording head portion side is sealed by the elasticity of the valve 25, and similarly, ink leakage from the ink supply path side is also prevented.

【0004】この状態からインクカートリッジ20を押
し込んで、図3(B)に示すように、インクカートリッ
ジ20を装着した状態では、ピストン25の先端の突起
部により、弁22が押されて連結部30を開口させる。
また、ピストン25の先端の突起部の移動量が弁ストッ
パー33に突き当たり、それによりピストン25が復帰
バネ27に抗して後退して連通孔26を開通させ、連結
部29と袋体23の内部とを連通させて、袋体23内の
インクを記録ヘッド部側に供給する。
When the ink cartridge 20 is pushed in from this state and the ink cartridge 20 is mounted as shown in FIG. 3 (B), the valve 22 is pushed by the projection of the tip of the piston 25 and the connecting portion 30 is reached. To open.
Further, the amount of movement of the protrusion at the tip of the piston 25 hits the valve stopper 33, whereby the piston 25 moves backward against the return spring 27 to open the communication hole 26, and the inside of the connecting portion 29 and the bag body 23. And the ink in the bag body 23 are supplied to the recording head portion side.

【0005】しかしながら、特開昭63−13749号
公報に記載されたインク供給装置は、連結部39と連結
部30の断面積が大きく、しかも、スポンジ状弾性部材
28によって気密に結合されているから、インクカート
リッジ20の装着の際には、ピストン25が後退を開始
するまでの行程において、両連結部により囲まれた空間
内の空気が、圧縮される。圧縮された空気は、連結部3
0からインク供給口側に入り込み、インク流路内に気泡
を混入させて、印字不良、もしくは、印字不能状態を発
生させる原因となる。また、インクカートリッジ20の
分離の際には、ピストンが復帰して連結孔26が塞がれ
てから、弁32が閉鎖されるまでの行程において、スポ
ンジ状弾性部材28の内部が負圧になり、ノズル部から
空気が吸引されることになり、同様に、ノズル内に気泡
を混入させ、印字不良、もしくは、印字不能状態を発生
させる原因となる。また、連結部の構造が複雑であるか
ら、インクカートリッジを使い捨てにする場合には、価
格の面からも、有利ではない。
However, in the ink supply device described in Japanese Patent Laid-Open No. 63-13749, the connecting portion 39 and the connecting portion 30 have a large cross-sectional area, and moreover, the sponge-like elastic members 28 are airtightly connected. At the time of mounting the ink cartridge 20, the air in the space surrounded by both the connecting portions is compressed in the stroke until the piston 25 starts retracting. The compressed air flows through the connecting portion 3
This causes air bubbles to enter the ink supply port side from 0 and cause air bubbles to be mixed in the ink flow path, resulting in defective printing or unprintable state. Further, when the ink cartridge 20 is separated, the inside of the sponge-like elastic member 28 becomes a negative pressure in the process from the return of the piston to close the connection hole 26 to the closing of the valve 32. As a result, air is sucked from the nozzle portion, and similarly, air bubbles are mixed in the nozzle, which may cause defective printing or unprintable state. Further, since the structure of the connecting portion is complicated, it is not advantageous in terms of cost when the ink cartridge is disposable.

【0006】したがって、上述した方法に限らず、取り
外し可能な記録液収納部と記録ヘッドとを有する記録液
供給方法、あるいは、取り外し可能な記録液収納部と記
録ヘッドに連通する副記録液収納部を有する記録液供給
方法においては、記録液収納部と記録ヘッド部側とを連
結する連結部の信頼性は重要である。すなわち、装着
時、あるいは分離時におけるノズルからの記録液の漏れ
や、記録ヘッド部における副記録液収納部への気泡の混
入等の対策は不可欠である。また、価格の面からも、部
品点数が少なく、単純な構造の方が有利であるのは明ら
かである。
Therefore, the method is not limited to the above-described method, and a recording liquid supply method having a removable recording liquid storage portion and a recording head, or a removable recording liquid storage portion and a sub recording liquid storage portion communicating with the recording head. In the recording liquid supply method including the above, the reliability of the connecting portion that connects the recording liquid storage portion and the recording head portion side is important. That is, it is essential to take measures such as leakage of the recording liquid from the nozzles at the time of mounting or separation, and inclusion of bubbles in the sub recording liquid storage portion of the recording head portion. Also, in terms of price, it is obvious that a simple structure is advantageous because the number of parts is small.

【0007】特開平3−87266号公報には、閉塞体
と管状要素を用いた簡単な構造の針形式の記録液供給方
式を用いたインクジェット記録装置が記載されている。
図4は、その説明図であり、インクカートリッジを装着
した状態を示す断面図である。図中、40はインクカー
トリッジ、41は可動キャリッジ、42は支持構造体、
43は中間リザーバ、44は記録ヘッドノズル、45は
管状要素、46は偏平ケーブル、47は記録紙、48は
スポンジ状材料、49は金属グリル、50は閉塞体、5
1はスペース、52は蓋体、53は連通孔である。イン
クカートリッジ40は、可動キャリッジ41に支持され
た支持構造体42に着脱可能に取り付けられている。中
間リザーバ43、記録ヘッドノズル44を有する記録ヘ
ッド部は、支持構造体42と一体化されており、キャリ
ッジ41により、記録紙47に対して、ライン方向に移
動しながら、インクを吐出して、記録紙47に印字を行
なう。記録ヘッド部への印字信号は、偏平ケーブル46
により伝送される。記録ヘッドノズル44に連通された
中間リザーバ43には、管状要素45からインクが供給
される。管状要素45の先端は、尖鋭にされており、イ
ンクカートリッジ40が装着された際に、ゴムのような
弾性材料の閉塞体50を貫通するようにされている。イ
ンクカートリッジ40は、内部にインクを含浸するスポ
ンジ状材料48を収容しており、その上部に大気と連通
する連通孔52を有する蓋体51が固定されている。金
属グリル49は、スポンジ材料48が、連結部のスペー
ス50に侵入するのを防止するために設けられたもので
ある。
Japanese Unexamined Patent Publication No. 3-87266 describes an ink jet recording apparatus using a needle type recording liquid supply system having a simple structure using a closing body and a tubular element.
FIG. 4 is an explanatory diagram thereof and is a cross-sectional view showing a state in which an ink cartridge is mounted. In the figure, 40 is an ink cartridge, 41 is a movable carriage, 42 is a support structure,
43 is an intermediate reservoir, 44 is a recording head nozzle, 45 is a tubular element, 46 is a flat cable, 47 is recording paper, 48 is a sponge-like material, 49 is a metal grille, 50 is a closing body, 5
1 is a space, 52 is a lid, and 53 is a communication hole. The ink cartridge 40 is detachably attached to a support structure 42 supported by a movable carriage 41. The recording head portion having the intermediate reservoir 43 and the recording head nozzle 44 is integrated with the support structure 42, and the carriage 41 moves the ink toward the recording paper 47 in the line direction while ejecting ink. Printing is performed on the recording paper 47. The print signal to the recording head is sent to the flat cable 46.
Transmitted by. Ink is supplied from the tubular element 45 to the intermediate reservoir 43 communicating with the recording head nozzle 44. The tip of the tubular element 45 is sharpened so that when the ink cartridge 40 is mounted, the tubular element 45 penetrates through the closing body 50 made of an elastic material such as rubber. The ink cartridge 40 contains a sponge-like material 48 impregnated with ink inside, and a lid 51 having a communication hole 52 communicating with the atmosphere is fixed to the upper portion thereof. The metal grill 49 is provided to prevent the sponge material 48 from entering the space 50 of the connecting portion.

【0008】インクカートリッジ40をキャリッジ41
が支持する支持構造体42に装着すると、管状要素45
が、インクカートリッジ40のインク導出部の閉塞体5
0を貫通して、インクをインクジェットカートリッジ4
0から記録ヘッド部の中間リザーバ43を経由して記録
ヘッドノズル44にインクが供給される。
The ink cartridge 40 is attached to the carriage 41.
Mounted on a support structure 42 supported by a tubular element 45.
Is the closing body 5 of the ink lead-out portion of the ink cartridge 40.
Ink cartridge 4
Ink is supplied to the recording head nozzles 44 from 0 via the intermediate reservoir 43 of the recording head unit.

【0009】しかしながら、このような方法では、支持
構造体42からインクジェットカートリッジ40を交換
すると、管状要素45の先端からその内部に空気が入り
込み、管状要素45、中間リザーバー43、記録ヘッド
ノズル44内に充填されたインクが、記録ヘッドノズル
44から漏れてしまい、記録ヘッドノズル44、管状要
素45、中間リザーバー43内に気泡が入り込み、次に
インクカートリッジ40を支持構造体42に差し込んで
も、気泡により印字ができなかったり、漏洩したインク
により、ノズル面がインクで覆われてしまうと、インク
の吐出不良が発生したり、さらに、この状態で放置時間
が長引くと、ノズル面のインクが乾燥し固結して、イン
クが吐出しないという好ましくない事態を引き起こすと
いう問題があった。
However, in such a method, when the ink jet cartridge 40 is replaced from the support structure 42, air enters from the tip of the tubular element 45 into the inside thereof, and enters the tubular element 45, the intermediate reservoir 43, and the recording head nozzle 44. The filled ink leaks from the recording head nozzle 44, bubbles enter into the recording head nozzle 44, the tubular element 45, and the intermediate reservoir 43, and even when the ink cartridge 40 is inserted into the support structure 42, printing is performed by the bubbles. If the nozzle surface is not covered with ink or is leaked and the nozzle surface is covered with ink, defective ink ejection may occur.In addition, if the leaving time is prolonged in this state, the ink on the nozzle surface dries and solidifies. Then, there was a problem that it causes an unfavorable situation that ink is not ejected.

【0010】[0010]

【発明が解決しようとする課題】本発明は、上述した事
情に鑑みてなされたもので、記録液収納部の装着時、あ
るいは分離時における記録ヘッドノズルからの記録液の
漏れや、記録ヘッド部への気泡混入等の防止ができ、か
つ、構造が簡単で部品点数が少なく、信頼性の高いイン
クジェット記録装置を実現することを目的とするもので
ある。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and leaks of the recording liquid from the recording head nozzles at the time of mounting or separating the recording liquid storage portion, and the recording head portion. It is an object of the present invention to realize an ink jet recording apparatus which can prevent bubbles from entering into the ink jet recording apparatus, has a simple structure, has a small number of parts, and has high reliability.

【0011】[0011]

【課題を解決するための手段】本発明は、記録のために
記録液を吐出させる機能を備えた記録ヘッド部と、記録
液吸収体を備えた記録液収納部を有するインクジェット
記録装置において、前記記録ヘッド部の記録液流入部に
弾性部材からなる封止部を設けるとともに、前記記録液
収納部の記録液導出部に中空針を設けたことを特徴とす
るものである。前記記録ヘッド部の弾性部材からなる封
止部が、中空針を受ける部分に、テーパーを設けるよう
にしてもよい。
The present invention provides an ink jet recording apparatus having a recording head portion having a function of ejecting a recording liquid for recording, and a recording liquid storage portion having a recording liquid absorber. It is characterized in that a sealing portion made of an elastic member is provided in the recording liquid inflow portion of the recording head portion, and a hollow needle is provided in the recording liquid outlet portion of the recording liquid storage portion. A taper may be provided at a portion of the recording head portion, which is made of an elastic member, for receiving the hollow needle.

【0012】[0012]

【作用】本発明によれば、記録ヘッド部側の記録液流入
部に装着した弾性部材からなる封止部により、記録ヘッ
ド部側が封止されるので、記録ヘッドノズルからの記録
液の漏洩や、記録ヘッド部側への気泡の混入は発生しな
い。そして、装着時には、封止部に中空針が挿入される
ことにより、記録ヘッド部と記録液収納部とが連通し、
記録液を記録ヘッド部側に送ることができる。記録液収
納部の分離時には、分離動作によって供給路の封止部材
が挟搾されるから、簡単な構成で記録液の漏洩、空気の
吸い込みを防止できる。
According to the present invention, since the recording head portion side is sealed by the sealing portion formed of the elastic member attached to the recording liquid inflow portion on the recording head portion side, leakage of the recording liquid from the recording head nozzle or No air bubbles are mixed into the recording head unit side. Then, at the time of mounting, by inserting a hollow needle into the sealing portion, the recording head portion and the recording liquid storage portion communicate with each other,
The recording liquid can be sent to the recording head side. When the recording liquid storage unit is separated, the sealing member of the supply path is pinched by the separating operation, so that the recording liquid can be prevented from leaking and the air can be sucked in with a simple configuration.

【0013】[0013]

【実施例】図1,図2は、本発明のインクジェット記録
装置における記録液供給装置の一実施例の概略を示す断
面図であり、図1は記録液収納部が記録ヘッド部に挿入
される前の分離状態を示し、図2は装着状態を示してい
る。図中、1は記録ヘッド部、2は記録ヘッド、3は記
録液収納部、4は記録液吸収体、5は弾性封止部材、6
は中空針、7は記録ヘッドノズル、8はガイド溝、9は
弾性固定部材、10は副記録液収納部、11は針状管
路、12はテーパー部、13はフィルター、14は大気
連通孔、15はガイドである。
1 and 2 are schematic cross-sectional views showing an embodiment of a recording liquid supply device in an ink jet recording apparatus of the present invention. FIG. 1 shows a recording liquid storage part inserted into a recording head part. The previous separated state is shown, and FIG. 2 shows the mounted state. In the figure, 1 is a recording head part, 2 is a recording head, 3 is a recording liquid storage part, 4 is a recording liquid absorber, 5 is an elastic sealing member, 6
Is a hollow needle, 7 is a recording head nozzle, 8 is a guide groove, 9 is an elastic fixing member, 10 is an auxiliary recording liquid storage portion, 11 is a needle-like conduit, 12 is a taper portion, 13 is a filter, and 14 is an atmosphere communication hole. , 15 are guides.

【0014】記録ヘッド部1は、記録ヘッド2と記録液
収納部3を保持するガイド15とが結合されて構成され
ており、記録ヘッド2の上部に、記録液収納部3との連
結管路が形成されている。記録ヘッド2は、流路を模式
的に示したものであり、記録ヘッドノズル7は、副記録
液収納部10に連通している。また、副記録液収納部1
0の記録液流入側には、弾性封止部材5が取り付けられ
ており、弾性封止部材5に連結管路として、針状管路1
1が形成されている。針状管路11の形状は、入口部で
テーパー部12が形成されており、その下の方では円筒
形の孔として形成されている。記録液吸収体4は、多孔
質体、例えば、スポンジが用いられ、記録液収納部3の
内部に充填されており、内蔵する記録液、例えば、イン
クを吸収保持している。記録液収納部3の上部には、大
気連通孔14が設けられている。また、下部には、弾性
固定部材9に中空針6が嵌め合い固定され、弾性固定部
材9が記録液収納部3に挿入し固定され、記録液導出部
となっている。中空針6の上部には、記録液吸収体4内
の異物除去のために、フィルター13が挿入されてい
る。このフィルター13の取り付け位置は、記録ヘッド
ノズル7の手前の記録液流路中に設けられてもよい。
The recording head unit 1 is composed of a recording head 2 and a guide 15 for holding the recording liquid storage unit 3, which are connected to each other. Are formed. The recording head 2 schematically shows a flow path, and the recording head nozzle 7 communicates with the sub recording liquid storage unit 10. In addition, the sub recording liquid storage unit 1
An elastic sealing member 5 is attached to the recording liquid inflow side of No. 0, and the elastic sealing member 5 is connected to the needle-shaped conduit 1 as a connecting conduit.
1 is formed. As for the shape of the needle-like conduit 11, the tapered portion 12 is formed at the inlet portion, and the lower portion thereof is formed as a cylindrical hole. The recording liquid absorber 4 is made of a porous material such as sponge, is filled inside the recording liquid storage unit 3, and absorbs and holds the recording liquid contained therein, for example, ink. An atmosphere communication hole 14 is provided in the upper portion of the recording liquid storage unit 3. Further, the hollow needle 6 is fitted and fixed to the elastic fixing member 9 at the lower part, and the elastic fixing member 9 is inserted and fixed in the recording liquid storage portion 3 to form a recording liquid outlet portion. A filter 13 is inserted above the hollow needle 6 to remove foreign matter in the recording liquid absorber 4. The mounting position of the filter 13 may be provided in the recording liquid flow path before the recording head nozzle 7.

【0015】中空針6と針状管路11とは、記録液収納
部3が記録ヘッド部に結合された状態で、中空針6が針
状管路11に挿入されるように両者が位置決めされてい
る。挿入時には、図1に示すように、記録液収納部3が
記録ヘッド部1のガイド15を通り、そして、ガイド溝
8に記録液収納部3に設けた突起(図示せず)が嵌め合
わされて、弾性固定部材9に取り付けられた中空針6を
副記録液収納部10内に挿入する構成になっている。
The hollow needle 6 and the needle-shaped conduit 11 are positioned so that the hollow needle 6 is inserted into the needle-shaped conduit 11 in the state where the recording liquid container 3 is connected to the recording head portion. ing. At the time of insertion, as shown in FIG. 1, the recording liquid storage unit 3 passes through the guide 15 of the recording head unit 1, and a protrusion (not shown) provided in the recording liquid storage unit 3 is fitted into the guide groove 8. The hollow needle 6 attached to the elastic fixing member 9 is inserted into the sub recording liquid storage unit 10.

【0016】記録液収納部3が分離された状態では、図
1に示すように、副記録液収納部10の上部に固定され
た弾性封止部材5の針状管路11は、封止状態となって
いるので、大気とは遮断された状態となっている。従っ
て、この状態では、針状管路11は、大気と連通しない
構造となり、記録液が記録ヘッドノズル7から漏洩した
り、副記録液収納部10内への気泡等が導入されること
はない。
When the recording liquid container 3 is separated, as shown in FIG. 1, the needle-shaped conduit 11 of the elastic sealing member 5 fixed to the upper portion of the sub recording liquid container 10 is in the sealed state. Therefore, it is in a state of being cut off from the atmosphere. Therefore, in this state, the needle-like conduit 11 has a structure that does not communicate with the atmosphere, and the recording liquid does not leak from the recording head nozzle 7 or bubbles or the like are introduced into the sub recording liquid storage portion 10. .

【0017】記録液収納部3を記録ヘッド部1に取り付
た状態では、図2に示すように、中空針6が弾性封止部
材5の針状管路11(図1参照)に挿入される。取付に
際しては、まず、図1に示すように、矢印方向に記録液
収納部3を挿入してガイド15に沿って押し込んでい
く。押し込みの最終段階では、ガイド溝8と記録液収納
部3に設けた突起(図示せず)とが嵌め合わされ、より
正確に位置決めが行なわれる。この段階で、中空針6が
針状管路11のテーパー部12の入口に誘導される。そ
こから先では、容易に針状管路11内に中空針6を挿入
することができる。
When the recording liquid storage unit 3 is attached to the recording head unit 1, as shown in FIG. 2, the hollow needle 6 is inserted into the needle-shaped conduit 11 (see FIG. 1) of the elastic sealing member 5. It At the time of attachment, first, as shown in FIG. 1, the recording liquid storage portion 3 is inserted in the direction of the arrow and pushed in along the guide 15. At the final stage of pushing, the guide groove 8 and the projection (not shown) provided in the recording liquid storage portion 3 are fitted to each other, and the positioning is performed more accurately. At this stage, the hollow needle 6 is guided to the inlet of the taper portion 12 of the needle-shaped conduit 11. From there, the hollow needle 6 can be easily inserted into the needle-shaped conduit 11.

【0018】中空針6が針状管路11に挿入される過程
では、針状管路11が封止状態で中空針6が挿入されて
行くので、記録液が記録ヘッドノズル7から漏洩した
り、副記録液収納部10内への気泡等が導入されること
はない。中空針6の挿入状態では、図2に示すように中
空針6が副記録液収納部10内に挿入されているので、
記録液は、記録液吸収部材4から中空針6を通り、副記
録液収納部10内にスムーズに供給される。また、弾性
封止部材5側を突出させて、中空針6を記録液収納部3
の内側に配置してあるので、中空針による手、指等への
怪我を防止することができる。
In the process of inserting the hollow needle 6 into the needle-shaped conduit 11, the hollow needle 6 is inserted while the needle-shaped conduit 11 is sealed, so that the recording liquid leaks from the recording head nozzle 7. Bubbles and the like are not introduced into the sub recording liquid storage unit 10. In the inserted state of the hollow needle 6, as shown in FIG. 2, since the hollow needle 6 is inserted in the sub recording liquid storage portion 10,
The recording liquid is smoothly supplied from the recording liquid absorbing member 4 through the hollow needle 6 into the sub recording liquid storage unit 10. In addition, the elastic sealing member 5 side is projected so that the hollow needle 6 is attached to the recording liquid storage unit 3
Since it is arranged inside the, it is possible to prevent injuries to the hands, fingers and the like due to the hollow needle.

【0019】[0019]

【発明の効果】以上の説明から明らかなように、本発明
によれば、記録液収納部を記録ヘッドに至る記録液供給
系への装着することが容易で、かつ、装着時ないしは交
換時において、記録液の漏洩、気泡の混入が生じること
がない。しかも装着された時には確実な記録液の連通状
態を確保できる記録液供給装置が実現できる。また、連
結部の構造を簡略化し、部品点数を削減でき、信頼性の
向上を図ることができるという効果がある。
As is apparent from the above description, according to the present invention, it is easy to attach the recording liquid storage portion to the recording liquid supply system leading to the recording head, and at the time of mounting or replacement. There is no leakage of recording liquid or mixing of bubbles. Moreover, it is possible to realize a recording liquid supply device capable of ensuring a reliable communication state of the recording liquid when mounted. Further, there is an effect that the structure of the connecting portion can be simplified, the number of parts can be reduced, and the reliability can be improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】〜[Figure 1]

【図2】 本発明のインクジェット記録装置における記
録液供給装置の一実施例の概略を示す断面図である。
FIG. 2 is a cross-sectional view showing an outline of an embodiment of a recording liquid supply device in the inkjet recording device of the present invention.

【図3】〜[Figure 3]

【図4】 従来のインクジェット記録装置における記録
液供給装置の説明図である。
FIG. 4 is an explanatory diagram of a recording liquid supply device in a conventional inkjet recording device.

【符号の説明】[Explanation of symbols]

1 記録ヘッド部、2 記録ヘッド、3 記録液収納
部、4 記録液吸収体、5 弾性封止部材、6 中空
針、7 記録ヘッドノズル、8 ガイド溝、9 弾性固
定部材、10 副記録液収納部、11 針状管路、12
テーパー部、13フィルター、14 大気連通孔、1
5 ガイド。
1 recording head part, 2 recording head, 3 recording liquid storage part, 4 recording liquid absorber, 5 elastic sealing member, 6 hollow needle, 7 recording head nozzle, 8 guide groove, 9 elastic fixing member, 10 sub recording liquid storage Part, 11 needle-like conduit, 12
Taper part, 13 filter, 14 atmosphere communication hole, 1
5 guides.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 記録のために記録液を吐出させる機能を
備えた記録ヘッド部と、記録液吸収体を備えた記録液収
納部を有するインクジェット記録装置において、前記記
録ヘッド部の記録液流入部に弾性部材からなる封止部を
設けるとともに、前記記録液収納部の記録液導出部に中
空針を設けたことを特徴とするインクジェット記録装
置。
1. An inkjet recording apparatus having a recording head portion having a function of ejecting a recording liquid for recording, and a recording liquid storage portion having a recording liquid absorber, the recording liquid inflow portion of the recording head portion. An ink jet recording apparatus, characterized in that a sealing portion made of an elastic member is provided on the recording medium, and a hollow needle is provided at a recording liquid outlet portion of the recording liquid storage portion.
JP21083592A 1992-07-14 1992-07-14 Inkjet recording apparatus Pending JPH0631930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21083592A JPH0631930A (en) 1992-07-14 1992-07-14 Inkjet recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21083592A JPH0631930A (en) 1992-07-14 1992-07-14 Inkjet recording apparatus

Publications (1)

Publication Number Publication Date
JPH0631930A true JPH0631930A (en) 1994-02-08

Family

ID=16595903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21083592A Pending JPH0631930A (en) 1992-07-14 1992-07-14 Inkjet recording apparatus

Country Status (1)

Country Link
JP (1) JPH0631930A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0822084A2 (en) * 1996-07-31 1998-02-04 Canon Kabushiki Kaisha An ink jet recording head, an ink jet head cartridge, and an ink jet recording apparatus
JPH1044451A (en) * 1996-07-31 1998-02-17 Canon Inc Ink jet head cartridge and ink jet recorder
US5966155A (en) * 1994-10-31 1999-10-12 Hewlett-Packard Company Inkjet printing system with off-axis ink supply having ink path which does not extend above print cartridge
US5988802A (en) * 1996-08-30 1999-11-23 Hewlett-Packard Company Off-axis ink supply with pressurized ink tube for preventing air ingestion
US6019463A (en) * 1994-05-20 2000-02-01 Citizen Watch Co., Ltd Ink cartridge
AU2003200319B2 (en) * 1996-07-31 2005-11-24 Canon Kabushiki Kaisha An Ink Jet Recording Head, an Ink Jet Head Cartridge, and an Ink Jet Recording Apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6019463A (en) * 1994-05-20 2000-02-01 Citizen Watch Co., Ltd Ink cartridge
US5966155A (en) * 1994-10-31 1999-10-12 Hewlett-Packard Company Inkjet printing system with off-axis ink supply having ink path which does not extend above print cartridge
EP0822084A2 (en) * 1996-07-31 1998-02-04 Canon Kabushiki Kaisha An ink jet recording head, an ink jet head cartridge, and an ink jet recording apparatus
JPH1044451A (en) * 1996-07-31 1998-02-17 Canon Inc Ink jet head cartridge and ink jet recorder
EP0822084A3 (en) * 1996-07-31 1998-12-16 Canon Kabushiki Kaisha An ink jet recording head, an ink jet head cartridge, and an ink jet recording apparatus
AU745397B2 (en) * 1996-07-31 2002-03-21 Canon Kabushiki Kaisha An ink jet recording head, an ink jet head cartridge, and an ink jet recording apparatus
US6464338B1 (en) 1996-07-31 2002-10-15 Canon Kabushiki Kaisha Ink jet head with separable tank holding member and recording unit
AU2003200319B2 (en) * 1996-07-31 2005-11-24 Canon Kabushiki Kaisha An Ink Jet Recording Head, an Ink Jet Head Cartridge, and an Ink Jet Recording Apparatus
US5988802A (en) * 1996-08-30 1999-11-23 Hewlett-Packard Company Off-axis ink supply with pressurized ink tube for preventing air ingestion
USRE37874E1 (en) * 1996-08-30 2002-10-15 Hewlett-Packard Company Off-axis ink with supply with pressurized ink tube for preventing air ingestion

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