JP2563769B2 - Printer ink tank - Google Patents

Printer ink tank

Info

Publication number
JP2563769B2
JP2563769B2 JP59102843A JP10284384A JP2563769B2 JP 2563769 B2 JP2563769 B2 JP 2563769B2 JP 59102843 A JP59102843 A JP 59102843A JP 10284384 A JP10284384 A JP 10284384A JP 2563769 B2 JP2563769 B2 JP 2563769B2
Authority
JP
Japan
Prior art keywords
ink
tank
porous member
hole
wire
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
Application number
JP59102843A
Other languages
Japanese (ja)
Other versions
JPS60245562A (en
Inventor
正尚 松沢
芳典 宮沢
隆史 鈴木
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP59102843A priority Critical patent/JP2563769B2/en
Priority to DE3486334T priority patent/DE3486334C5/en
Priority to SG1996006312A priority patent/SG52578A1/en
Priority to DE3486335T priority patent/DE3486335T2/en
Priority to SG1996006751A priority patent/SG54266A1/en
Priority to EP94101075A priority patent/EP0606101B1/en
Priority to DE3486487T priority patent/DE3486487T2/en
Priority to DE3486481T priority patent/DE3486481T2/en
Priority to DE19843486333 priority patent/DE3486333T2/en
Priority to EP94101076A priority patent/EP0614762B1/en
Priority to EP94101074A priority patent/EP0614761B1/en
Priority to EP94101088A priority patent/EP0615848B1/en
Priority to EP94101083A priority patent/EP0605388B1/en
Priority to DE19843486486 priority patent/DE3486486T2/en
Priority to SG1996006406A priority patent/SG50609A1/en
Priority to DE3486485T priority patent/DE3486485T2/en
Priority to DE3486482T priority patent/DE3486482T2/en
Priority to EP90201873A priority patent/EP0406982B1/en
Priority to DE19843486484 priority patent/DE3486484T2/en
Priority to DE3486337T priority patent/DE3486337T2/en
Priority to DE3486483T priority patent/DE3486483T2/en
Priority to SG1995907218A priority patent/SG26412G/en
Priority to SG1996006357A priority patent/SG64344A1/en
Priority to SG1996006337A priority patent/SG46589A1/en
Priority to SG1995906848A priority patent/SG26404G/en
Priority to EP90201875A priority patent/EP0398452B1/en
Priority to DE3486480T priority patent/DE3486480T2/en
Priority to EP96115079A priority patent/EP0749839A3/en
Priority to EP90201874A priority patent/EP0406983B1/en
Priority to DE8484306887T priority patent/DE3484840D1/en
Priority to EP90201876A priority patent/EP0398453B1/en
Priority to EP84306887A priority patent/EP0139508B1/en
Priority to EP94101081A priority patent/EP0605386B1/en
Priority to EP94101089A priority patent/EP0605389B1/en
Priority to SG1996006359A priority patent/SG50606A1/en
Priority to SG1995906830A priority patent/SG26403G/en
Priority to EP94101082A priority patent/EP0605387B1/en
Publication of JPS60245562A publication Critical patent/JPS60245562A/en
Priority to US07/401,539 priority patent/US4969759A/en
Priority to US07/612,010 priority patent/US5156471A/en
Priority to US07/624,228 priority patent/US5156470A/en
Priority to US07/620,406 priority patent/US5156473A/en
Priority to US07/620,407 priority patent/US5174665A/en
Priority to US07/620,408 priority patent/US5221148A/en
Priority to US07/620,483 priority patent/US5156472A/en
Priority to US07/620,411 priority patent/US5158377A/en
Priority to US07/962,959 priority patent/US5328279A/en
Priority to US08/150,676 priority patent/US5421658A/en
Priority to US08/343,744 priority patent/US6123469A/en
Priority to US08/405,280 priority patent/US5560720A/en
Priority to HK73295A priority patent/HK73295A/en
Priority to HK73495A priority patent/HK73495A/en
Priority to HK73195A priority patent/HK73195A/en
Priority to HK73395A priority patent/HK73395A/en
Priority to US08/465,630 priority patent/US5622439A/en
Priority to US08/465,163 priority patent/US5615957A/en
Priority to US08/465,074 priority patent/US5603577A/en
Priority to US08/462,921 priority patent/US5607242A/en
Priority to US08/488,534 priority patent/US6145974A/en
Priority to US08/485,319 priority patent/US6276785B1/en
Priority to US08/474,296 priority patent/US6247803B1/en
Priority to US08/722,291 priority patent/US6231248B1/en
Application granted granted Critical
Publication of JP2563769B2 publication Critical patent/JP2563769B2/en
Priority to US08/787,722 priority patent/US6176629B1/en
Priority to US09/457,630 priority patent/US6224275B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/305—Ink supply apparatus
    • 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
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner structure
    • 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
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/235—Print head assemblies
    • B41J2/25—Print wires
    • B41J2/255—Arrangement of the print ends of the wires

Landscapes

  • Ink Jet (AREA)
  • Impact Printers (AREA)

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、液状インクを記録紙に付着させて記録紙に
ドットを形成することによって文字図形等を記録するプ
リンタ等のインクタンクの構造に関する。Description: TECHNICAL FIELD The present invention relates to a structure of an ink tank of a printer or the like for recording a character or the like by depositing a liquid ink on a recording paper to form dots on the recording paper. .

（従来技術） 記録装置のインクタンクとして、例えば第１図に示す
ような多孔質部材等のインク含浸部材を容器内に充填し
たものが知られている。このインクタンクは、インク含
浸部材が有する適度な毛細管力によってプリンタヘッド
本体に適量のインクを供給でき、かつタンクの空気口や
インク供給孔からの意図しないインクの流出を防止して
比較的多量のインクを収容することができるという特徴
を備えている。(Prior Art) As an ink tank of a recording apparatus, there is known an ink tank filled with an ink impregnated member such as a porous member as shown in FIG. This ink tank can supply an appropriate amount of ink to the printer head main body by an appropriate capillary force of the ink impregnating member, and prevent unintended outflow of ink from the air port or ink supply hole of the tank, thereby providing a relatively large amount of ink. It has a feature that it can store ink.

このような構造のインクタンクから記録ヘッドにイン
クを供給する場合、インクタンクのインク供給口から遠
方領域に存在するインクをインク供給口付近のインク含
浸部材内の毛細管力がインクの消費によって増大し、そ
の結果生じるインク供給口から遠方領域にあるインクと
の圧力差である。When ink is supplied to the recording head from the ink tank having such a structure, the ink existing in the region far from the ink supply port of the ink tank increases in capillary force in the ink impregnating member near the ink supply port due to ink consumption. , And the resulting pressure difference with the ink in the region far from the ink supply port.

ところが多孔質部材に一般的に見られるように、含浸
されているインク量が減少するにつれて流体抵抗が増加
したり、またインク経路の各所で分断が生じるためイン
クが流れ難くなる。このため、インクを移動させるに十
分な圧力差が生じるよりも以前にインクが流れ難くなっ
てしまい、インク供給口から遠方の領域に存在するイン
クを使用することができなくなる。However, as generally found in the porous member, the fluid resistance increases as the amount of the impregnated ink decreases, and the ink flow becomes difficult because the ink is divided at various points in the ink path. For this reason, it becomes difficult for the ink to flow before the pressure difference sufficient to move the ink is generated, and it becomes impossible to use the ink existing in the region distant from the ink supply port.

すなわち、インク含浸部材にインクを保持させるイン
クタンクにあっては、タンク内のインクを全て使い切る
ことができず、また実際に使用できるインク量にバラつ
きが生じるという問題を抱えている。That is, in the ink tank in which the ink is held in the ink impregnating member, there is a problem that all the ink in the tank cannot be used up and the actually usable ink amount varies.

（目的） 本発明はこのような問題に鑑みてなされたものであっ
て、その目的とするところはインク含浸部材に保持され
ているインクを記録ヘッドに確実かつ安定に供給するこ
とができるプリンタのインクタンクを提供することであ
る。(Object) The present invention has been made in view of the above problems, and an object of the present invention is to provide a printer capable of reliably and stably supplying the ink held in the ink impregnating member to the recording head. It is to provide an ink tank.

（実施例） 第２図、第３図は、それぞれ本発明のインクタンクを
インク式ワイヤドットブリンタに適用した実施例を示す
ものである。なお本実施例では黒、赤、緑、青のインク
系と、そのそれぞれに対応して各色に１本の記録用のワ
イヤを備えた４色のカラープリンタプロッタ用記録ヘッ
ドが用いられている。したがって、記録ヘッドと記録紙
との一方又は双方を移動させて所望の色を印刷するワイ
ヤを記録紙上の所定の位置に突出させると、記録紙にド
ツトが形成されて文字や図形を描くことができる。(Embodiment) FIG. 2 and FIG. 3 each show an embodiment in which the ink tank of the present invention is applied to an ink type wire dot blinter. In this embodiment, a recording head for a four-color color printer plotter is used which has black, red, green, and blue ink systems and one recording wire for each color corresponding to each of them. Therefore, when one or both of the recording head and the recording paper are moved so that the wire for printing a desired color is projected to a predetermined position on the recording paper, a dot is formed on the recording paper and a character or a figure may be drawn. it can.

このヘッドの上部には着脱可能に本発明が特徴とする
インクタンク２が配置されている。インクタンク２は黒
インク用インクタンク2bとカラーインク用の内部が３分
割されたタンク2aとの二体構造として構成されている。An ink tank 2, which is a feature of the present invention, is removably arranged on the upper part of the head. The ink tank 2 is configured as a two-body structure including an ink tank 2b for black ink and a tank 2a for color ink, which is divided into three parts.

インクはインクタンク２内に充填されたインク含浸部
材としての多孔質部材60に保持されている。多孔質部材
60から記録ヘッドにインクを供給するインク供給口３
は、インクタンク２がヘッドに装着されたとき下方とな
る面で、かつ長手方向の中心よりも一方に偏した位置に
設けられていて、ここに記録ヘッドに連通するインク誘
導部材12が挿入されると、第３図に示したようにインク
誘導部材12が多孔質部材60に接触する。このインク誘導
部材12には軸方向に延びるインク誘導溝12bが設けられ
ていて、インクはこの誘導溝12bを介して記録ヘッド１
に流れ込む。なお、インク誘導溝12bの巾及び深さはイ
ンク含浸部材60から安定的に供給できる適切な値に設定
されている。The ink is held in a porous member 60 as an ink impregnating member filled in the ink tank 2. Porous member
Ink supply port 3 that supplies ink from 60 to the recording head
Is provided on a surface that is downward when the ink tank 2 is mounted on the head and at a position deviated to one side from the center in the longitudinal direction, and the ink guide member 12 communicating with the recording head is inserted therein. Then, as shown in FIG. 3, the ink guiding member 12 contacts the porous member 60. The ink guide member 12 is provided with an ink guide groove 12b extending in the axial direction, and the ink is supplied to the recording head 1 through the guide groove 12b.
Flow into. The width and depth of the ink guide groove 12b are set to appropriate values that allow stable supply from the ink impregnation member 60.

インク誘導部材12は、その前部に円環状誘導部材12a
を有してインク誘導溝12bと内部12cで連通している。円
環状誘導部材12aにはワイヤガイド13が組み込まれてい
て、両者の組合せによって間隙Ａ、Ｂが形成される。The ink guiding member 12 has an annular guiding member 12a on its front portion.
And the inside 12c communicates with the ink guide groove 12b. The wire guide 13 is incorporated in the annular guiding member 12a, and the gaps A and B are formed by the combination of both.

さらにワイヤ11とワイヤガイド13のワイヤガイド孔13
aとの間隙は僅かであるから、インクはインクタンク２
からインク誘導部材12のインク誘導溝12bとワイヤガイ
ド13との間隙Ａ、Ｂを経てワイヤ11の先端部に導かれ
る。Furthermore, the wire guide hole 13 of the wire 11 and the wire guide 13
Ink is stored in the ink tank 2 because the gap with a is small.
Is guided to the tip of the wire 11 through the gaps A and B between the ink guide groove 12b of the ink guide member 12 and the wire guide 13.

ワイヤ駆動装置は、コイル17を巻回したコイルコア16
を有するヨーク18と、ヨーク板19と、プランジャ15とで
磁気回路を形成し、プランジャ15の動きがクラッパ14を
介してワイヤ11に伝達するように構成されている。ま
た、ワイヤ駆動装置は、カバー21で覆われていてクラッ
パ14の作動長が規制されている。待機時にはワイヤ11
は、その先端面がワイヤガイド13の先端面より中央に位
置してワイヤガイド孔13aの前部に形成されるインクの
メニスカスにより覆われるようにその長さが設定されて
いる。The wire drive device includes a coil core 16 in which a coil 17 is wound.
A magnetic circuit is formed by the yoke 18 having the above, the yoke plate 19, and the plunger 15, and the movement of the plunger 15 is transmitted to the wire 11 via the clapper 14. Further, the wire driving device is covered with the cover 21, and the operating length of the clapper 14 is restricted. Wire 11 when waiting
The length is set such that the tip end surface is located in the center of the tip end surface of the wire guide 13 and is covered by the ink meniscus formed in the front part of the wire guide hole 13a.

次に動作を説明する。第３図は通電時の状態を示すも
ので、コイル17に通電することによりコイルコア16と対
向するプランジヤ15が吸引される。これによってプラン
ジャ15を固着したクラッパ14が回動し、その先端に係合
しているワイヤ11が突出する。ワイヤ11の先端面はイン
クメニスカスを貫いてインクを付着させた状態で示しな
い記録紙に衝突してインクを記録紙に転写する。Next, the operation will be described. FIG. 3 shows a state during energization. When the coil 17 is energized, the plunger 15 facing the coil core 16 is attracted. As a result, the clapper 14 to which the plunger 15 is fixed rotates, and the wire 11 engaged with the tip of the clapper 14 projects. The tip surface of the wire 11 penetrates the ink meniscus and collides with a recording paper (not shown) in a state where the ink is adhered to transfer the ink to the recording paper.

一方、ワイヤ11が待機している状態ではワイヤ11の先
端面がワイヤガイド13の端面より内側、つまりインクメ
ニスカス内に位置する。したがってワイヤ11を突出、退
避させることによりワイヤ先端は、記録紙へインクの転
写とインクの供給とを交互に行うことになる。なお、ワ
イヤ先端部へのインクの塗布等の一連の印字動作の詳細
については、特開昭57一6783号公報に記載されているの
で、これの詳細な説明は省略する。On the other hand, when the wire 11 is on standby, the tip end surface of the wire 11 is located inside the end surface of the wire guide 13, that is, inside the ink meniscus. Therefore, by projecting and retracting the wire 11, the tip of the wire alternately performs the transfer of ink and the supply of ink on the recording paper. Details of a series of printing operations such as application of ink to the tip of the wire are described in JP-A-57-16783, and detailed description thereof is omitted.

ワイヤガイド13の前面で余ったインクは、前面及び側
面に設けられたＶ型断面形状の細溝として形成された回
収溝13bに毛細管力によって引込まれてインク誘導部材1
2に還流される。The ink remaining on the front surface of the wire guide 13 is drawn into the recovery groove 13b formed as a narrow groove having a V-shaped cross section provided on the front surface and the side surface by a capillary force, and the ink guiding member 1
Reflux to 2.

第４図は、本発明が特徴とするインクタンクの一実施
例を示すものであって、インクタンクは、タンク本体40
と、タンク本体40の空間に充填されたインク含浸部材で
ある多孔質部材60と、タンク蓋50とにより構成されてい
る。FIG. 4 shows an embodiment of the ink tank which is the feature of the present invention.
And a porous member 60 which is an ink impregnating member filled in the space of the tank body 40, and a tank lid 50.

タンク本体40は、底面、側壁からなる断面が矩形の容
器として構成されており、底面40aの前方側にはインク
供給口41が設けられ、また前壁面段差部43には空気口42
がそれぞれ設けられている。The tank body 40 is configured as a container having a rectangular cross section composed of a bottom surface and side walls, an ink supply port 41 is provided on the front side of the bottom surface 40a, and an air port 42 is provided on the front wall step 43.
Are provided respectively.

インク供給口41には、プリンタヘッドから突出するイ
ンク供給ガイド12の腕部12dが挿入される。この腕部12d
には上面が開口し、かつ記録ヘッド側に延びるインク誘
導溝12bが形成されていて、インク供給口41の内壁とイ
ンク誘導溝12bとでインク誘導用の通孔が形成される。The arm portion 12d of the ink supply guide 12 protruding from the printer head is inserted into the ink supply port 41. This arm 12d
Is formed with an ink guide groove 12b whose upper surface is open and extends toward the recording head side. The inner wall of the ink supply port 41 and the ink guide groove 12b form a through hole for ink guide.

一方、タンク本体40の底面40aの内側段差部44には複
数の溝45a、45b,45cがインク供給口41に通じるように設
けられており、プリンタヘッド本体のインク供給ガイド
12の腕部12dに設けられたインク誘導溝12bと対向してい
る。これら細溝45aと細溝45bとは途中で１本となり細溝
45cとともにインク誘導溝12bにインクを導く。On the other hand, a plurality of grooves 45a, 45b, 45c are provided in the inner step portion 44 of the bottom surface 40a of the tank body 40 so as to communicate with the ink supply port 41, and the ink supply guide of the printer head body is provided.
It faces the ink guide groove 12b provided in the twelve arm portions 12d. The narrow groove 45a and the narrow groove 45b become one on the way, and the narrow groove is formed.
Ink is guided to the ink guide groove 12b together with 45c.

これらタンク本体底部40a、側壁部40c、前壁部40b、
タンク蓋50により形成される空間には、平均孔径が異な
る２種類の多孔質部材61、62が、平均孔径の小さい多孔
質部材62を底面段差部44に接しさせて積層して収容され
ている。These tank body bottom 40a, side wall 40c, front wall 40b,
In the space formed by the tank lid 50, two kinds of porous members 61 and 62 having different average pore diameters are housed by laminating the porous member 62 having a small average pore diameter in contact with the bottom surface step portion 44. .

この実施例において、平均孔径の大きな多孔質部材6
1、平均孔径の小さな多孔質部材62、タンク本体40の底
面段差部44に設けた細溝45a、45b、45c、インク供給ガ
イド12のインク誘導溝12bの順にインク経路の毛細管力
が大きくなるように構成されている。In this example, the porous member 6 having a large average pore diameter is used.
1, the porous member 62 having a small average pore diameter, the thin grooves 45a, 45b, 45c provided in the bottom step portion 44 of the tank body 40, and the ink guiding groove 12b of the ink supply guide 12 in order of increasing capillary force of the ink path. Is configured.

この毛細管力は以下に示すような寸法を設定すること
により実現できる。This capillary force can be realized by setting the following dimensions.

多孔質部材61の平均孔径 0.4mm 多孔質部材62の平均孔径 0.3mm 細溝45a,b,cの溝幅 0.12mm インク誘導溝12bの溝幅 0.10mm この実施例において印字よりインクが消費されると、
インク供給ガイド12のインク誘導溝12bにより形成され
る通孔、またはインク供給ガイド12のインク誘導溝12b
とタンク本体底面段差部44の細溝45a,b,cを介して多孔
質部材62内のインクがプリンタヘッド本体に流入する。Average pore diameter of porous member 61 0.4 mm Average pore diameter of porous member 62 0.3 mm Groove width of narrow grooves 45a, b, c 0.12 mm Groove width of ink guide groove 12b 0.10 mm In this embodiment, ink is consumed by printing When,
A through hole formed by the ink guide groove 12b of the ink supply guide 12, or an ink guide groove 12b of the ink supply guide 12.
And the ink in the porous member 62 flows into the printer head main body through the narrow grooves 45a, b, c of the tank main body bottom step 44.

このときインクの移動は、板状の多孔質部材62の厚み
方向であるため、多孔質部材62内でのインクの移動量は
小さく、インクの分断はほとんど生じない。多孔質部材
61のインクがさらに消費されると、多孔質部材61内と多
孔質部材62内との間にインクの圧力差が生じ、消費され
た量と同量のインクが多孔質部材61から多孔質部材62に
平均孔径の相違により移動する。このとき多孔質部材61
内のインクの移動もやはり厚み方向に起こるため、イン
クには分断がほとんど生じない。At this time, since the movement of the ink is in the thickness direction of the plate-shaped porous member 62, the movement amount of the ink in the porous member 62 is small and the ink is hardly divided. Porous member
When the ink 61 is further consumed, a pressure difference of the ink is generated between the inside of the porous member 61 and the inside of the porous member 62, and the same amount of the consumed ink is transferred from the porous member 61 to the porous member 61. Move to 62 due to the difference in average pore size. At this time, the porous member 61
Since the movement of the ink inside also occurs in the thickness direction, the ink hardly breaks.

このようにして多孔質部材62内のインク量を使用開始
以前の状態とほぼ等しく保ちつつ多孔質部材61、62のイ
ンクがほとんど印刷に消費される。In this way, ink in the porous members 61, 62 is mostly consumed for printing while keeping the amount of ink in the porous member 62 almost equal to the state before the start of use.

第５図は、本発明の他の実施例を示すものであって、
多孔質部材60以外の構成は前述の実施例と同一である。FIG. 5 shows another embodiment of the present invention,
The configuration other than the porous member 60 is the same as that of the above-described embodiment.

この実施例では、多孔質部材60が前方領域、つまりイ
ンク供給口41側が厚く、また後方領域が相対的に薄くな
るように構成されていて、タンク本体40に充填された状
態では、インク供給口41側の領域が積極的に圧縮を受け
るようになっている。In this embodiment, the porous member 60 is configured such that the front region, that is, the ink supply port 41 side is thick, and the rear region is relatively thin, and the ink supply port is filled in the tank main body 40. The area on the 41st side is actively compressed.

このため、平均孔径が一様な多孔質部材を用いても、
タンクに充填することによりインク供給口41が位置する
前方領域での平均孔径が小さくなり、また後方にいくに
つれて連続的に平均孔径が大きくなる状態を作り出すこ
とができる。Therefore, even if a porous member with a uniform average pore size is used,
By filling the tank, the average hole diameter in the front region where the ink supply port 41 is located becomes small, and a state in which the average hole diameter continuously increases toward the rear can be created.

この実施例によれば、平均孔径がわずかづつ異なる薄
板状の多孔質部材60をインクタンクの前方から後方へ徐
々に平均孔径が大きくなるように配置したのと等価とな
るから、平均孔径の相違による毛細管力の差を利用して
インク供給口41から遠方に存在するインクをインク誘導
溝12bで形成された通孔に導いて、記録ヘッドに供給し
て消費し尽くすことができる。According to this embodiment, it is equivalent to arranging the thin plate-like porous member 60 having slightly different average pore diameters such that the average pore diameter gradually increases from the front side to the rear side of the ink tank. By utilizing the difference in the capillary force due to the above, the ink existing far from the ink supply port 41 can be guided to the through hole formed by the ink guide groove 12b, and can be supplied to the recording head and consumed.

（効果） 以上説明したように本発明においては、底面、側壁か
らなる断面が矩形で、底面に側壁の１つに偏する位置に
記録ヘッドにインクを供給するための通孔を備えたタン
ク本体と、該タンク本体を封止する蓋と、通孔に近づく
につれて平均孔径が小さくなるように通孔に接触して収
容された多孔質部材とからなり、多孔質部材に吸収され
ているインクを通孔を介して記録ヘッドに供給するよう
にしたので、タンクに収容されているインクを多孔質部
材の平均孔径の相違を利用して記録ヘッドに安定にかつ
確実に供給することができる。(Effect) As described above, in the present invention, the tank main body having a rectangular cross section composed of the bottom surface and the side wall, and having the through hole for supplying the ink to the recording head at a position biased to one of the side walls on the bottom surface A lid for sealing the tank body, and a porous member housed in contact with the through hole so that the average hole diameter becomes smaller toward the through hole. Since the ink is supplied to the recording head through the through hole, the ink contained in the tank can be stably and reliably supplied to the recording head by utilizing the difference in the average hole diameter of the porous members.

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

第１図は従来のインクタンクの一例を示す斜視図であ
る。第２図、第３図は、それぞれ本発明のインクタンク
を使用したプリンタヘッドの一実施例を示す斜視図と断
面図である。第４図は本発明のインクタンクの一実施例
を示す断面斜視図である。第５図は本発明のインクタン
クの他の実施例を示す断面斜視図である。FIG. 1 is a perspective view showing an example of a conventional ink tank. 2 and 3 are a perspective view and a sectional view, respectively, showing an embodiment of a printer head using the ink tank of the present invention. FIG. 4 is a sectional perspective view showing an embodiment of the ink tank of the present invention. FIG. 5 is a sectional perspective view showing another embodiment of the ink tank of the present invention.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 隆史 塩尻市大字広丘原新田80番地 エプソン 株式会社内 (56)参考文献 特開 昭55−166267（ＪＰ，Ａ) 実開 昭57−88557（ＪＰ，Ｕ) 実開 昭59−68985（ＪＰ，Ｕ) 実公 昭53−50492（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Suzuki 80, Hirookahara, Nitta, Shiojiri City Epson Corporation (56) Reference JP-A-55-166267 (JP, A) JP, U) Actual development Sho 59-68985 (JP, U) Actual public Sho 53-50492 (JP, Y2)

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】底面、側壁からなる断面が矩形で、前記底
面に前記側壁の１つに偏する位置に記録ヘッドにインク
を供給するための通孔を備えたタンク本体と、該タンク
本体を封止する蓋と、前記通孔に近づくにつれて平均孔
径が小さくなるように前記通孔に接触して収容された多
孔質部材とからなり、前記多孔質部材に吸収されている
インクを前記通孔を介して記録ヘッドに供給するプリン
タのインクタンク。1. A tank main body having a rectangular cross section composed of a bottom surface and a side wall, the bottom surface having a through hole for supplying ink to a recording head at a position biased to one of the side walls, and the tank main body. It comprises a lid for sealing and a porous member housed in contact with the through hole so that the average hole diameter becomes smaller as it gets closer to the through hole, and the ink absorbed in the porous member is passed through the through hole. Ink tank of the printer that supplies to the recording head via the. 【請求項２】前記多孔質部材が前記通孔の近傍で圧縮さ
れている特許請求の範囲の第１項に記載のプリンタのイ
ンクタンク。2. The ink tank for a printer according to claim 1, wherein the porous member is compressed near the through hole.
JP59102843A 1983-10-13 1984-05-22 Printer ink tank Expired - Lifetime JP2563769B2 (en)

Priority Applications (63)

Application Number Priority Date Filing Date Title
JP59102843A JP2563769B2 (en) 1984-05-22 1984-05-22 Printer ink tank
DE3486334T DE3486334C5 (en) 1984-05-22 1984-10-09 Dot matrix printer head with ink supply tank - contains ink absorbing part impregnated with ink at lower than atmospheric pressure
SG1996006312A SG52578A1 (en) 1984-05-22 1984-10-09 Ink guide assembly and ink-tank for a dot matrix printer
DE3486335T DE3486335T2 (en) 1984-05-22 1984-10-09 Ink supply tank for a matrix needle print head.
SG1996006751A SG54266A1 (en) 1984-05-22 1984-10-09 Ink guide assembly and ink tank for a dot matrix printer head
EP94101075A EP0606101B1 (en) 1984-05-22 1984-10-09 Ink tank
DE3486487T DE3486487T2 (en) 1984-05-22 1984-10-09 Ink tank
DE3486481T DE3486481T2 (en) 1984-05-22 1984-10-09 Process for impregnating an ink absorber in an ink container
DE19843486333 DE3486333T2 (en) 1984-05-22 1984-10-09 Ink supply tank for a matrix needle print head.
EP94101076A EP0614762B1 (en) 1984-05-22 1984-10-09 Ink tank
EP94101074A EP0614761B1 (en) 1984-05-22 1984-10-09 Ink tank
EP94101088A EP0615848B1 (en) 1984-05-22 1984-10-09 Ink tank
EP94101083A EP0605388B1 (en) 1984-05-22 1984-10-09 Ink tank
DE19843486486 DE3486486T2 (en) 1984-05-22 1984-10-09 Ink tank
SG1996006406A SG50609A1 (en) 1984-05-22 1984-10-09 Dot matrix printer head
DE3486485T DE3486485T2 (en) 1984-05-22 1984-10-09 Ink tank
DE3486482T DE3486482T2 (en) 1984-05-22 1984-10-09 Ink tank
EP90201873A EP0406982B1 (en) 1984-05-22 1984-10-09 Method of impregnating ink absorbing means
DE19843486484 DE3486484T2 (en) 1984-05-22 1984-10-09 Ink tank
DE3486337T DE3486337T2 (en) 1984-05-22 1984-10-09 Ink supply tank for a matrix needle print head.
DE3486483T DE3486483T2 (en) 1984-05-22 1984-10-09 Ink tank
SG1995907218A SG26412G (en) 1984-05-22 1984-10-09 Ink supply tank for a wire dot matrix printer head
SG1996006357A SG64344A1 (en) 1984-05-22 1984-10-09 Dot matrix printer head
SG1996006337A SG46589A1 (en) 1984-05-22 1984-10-09 Method of making a dot matrix printer head
SG1995906848A SG26404G (en) 1984-05-22 1984-10-09 Method of impregnating ink absorbing means
EP90201875A EP0398452B1 (en) 1984-05-22 1984-10-09 Ink supply tank for a wire dot matrix printer head
DE3486480T DE3486480T2 (en) 1984-05-22 1984-10-09 Ink tank
EP96115079A EP0749839A3 (en) 1984-05-22 1984-10-09 Ink tank
EP90201874A EP0406983B1 (en) 1984-05-22 1984-10-09 Ink supply tank for a wire dot matrix printer head
DE8484306887T DE3484840D1 (en) 1983-10-13 1984-10-09 DOT PRINT HEAD WITH NEEDLE MATRIX.
EP90201876A EP0398453B1 (en) 1984-05-22 1984-10-09 Ink supply tank for a wire dot matrix printer head
EP84306887A EP0139508B1 (en) 1983-10-13 1984-10-09 Wire dot matrix printer head
EP94101081A EP0605386B1 (en) 1984-05-22 1984-10-09 Ink tank
EP94101089A EP0605389B1 (en) 1984-05-22 1984-10-09 Ink tank
SG1996006359A SG50606A1 (en) 1984-05-22 1984-10-09 Ink guide assembly and ink tank for a dot matrix pritner head
SG1995906830A SG26403G (en) 1984-05-22 1984-10-09 Ink supply tank for a wire dot matrix printer head
EP94101082A EP0605387B1 (en) 1984-05-22 1984-10-09 Method for impregnating ink absorbing means in an ink tank
US07/401,539 US4969759A (en) 1983-10-13 1989-08-31 Ink-supplied wire dot matrix printer head
US07/612,010 US5156471A (en) 1984-05-22 1990-11-09 Ink-supplied wire dot matrix printer head
US07/624,228 US5156470A (en) 1983-10-13 1990-11-30 Two cartridge ink-supply system for a multi-color dot matrix printer
US07/620,406 US5156473A (en) 1983-10-13 1990-11-30 Multi-color cartridge ink-supply system for a dot matrix printer
US07/620,407 US5174665A (en) 1984-05-22 1990-11-30 Ink-supply system for a dot matrix printer
US07/620,408 US5221148A (en) 1984-05-22 1990-11-30 Dot matrix printer ink supply system having ink absorbing member substantially filling an ink tank
US07/620,483 US5156472A (en) 1984-05-22 1990-11-30 Dot matrix printer supply system having ink absorbing member filled under reduced pressure
US07/620,411 US5158377A (en) 1984-05-22 1990-11-30 Ink-supply system for a dot matrix printer
US07/962,959 US5328279A (en) 1984-05-22 1992-10-16 Dot matrix printer head
US08/150,676 US5421658A (en) 1984-05-22 1993-11-10 Ink supply mechanism for a dot matrix printer
US08/343,744 US6123469A (en) 1983-10-13 1994-11-22 Ink-supply wire dot matrix printer head
US08/405,280 US5560720A (en) 1984-05-22 1995-03-14 Ink-supply tank for a dot matrix printer
HK73295A HK73295A (en) 1984-05-22 1995-05-11 Method of impregnating ink absorbing means
HK73495A HK73495A (en) 1984-05-22 1995-05-11 Ink supply tank for a wire dot matrix printer head
HK73195A HK73195A (en) 1984-05-22 1995-05-11 Ink supply tank for a wire dot matrix printer head
HK73395A HK73395A (en) 1984-05-22 1995-05-11 Ink supply tank for a wire dot matrix printer head
US08/465,630 US5622439A (en) 1983-10-13 1995-06-05 Ink-supply tank for a dot matrix printer
US08/465,163 US5615957A (en) 1984-05-22 1995-06-05 Ink-supply tank for a dot matrix printer
US08/465,074 US5603577A (en) 1984-05-22 1995-06-05 Ink supply tank for a printer
US08/462,921 US5607242A (en) 1984-05-22 1995-06-05 Ink-supply tank for a printer
US08/488,534 US6145974A (en) 1983-10-13 1995-06-07 Ink-supplied printer head and ink container
US08/485,319 US6276785B1 (en) 1983-10-13 1995-06-07 Ink-supplied printer head and ink container
US08/474,296 US6247803B1 (en) 1983-10-13 1995-06-07 Ink jet recording apparatus and method for replenishing ink in the tank cartridge
US08/722,291 US6231248B1 (en) 1983-10-13 1996-09-27 Ink supply tank for a printer
US08/787,722 US6176629B1 (en) 1983-10-13 1997-01-24 Ink supply tank for a printer
US09/457,630 US6224275B1 (en) 1983-10-13 1999-12-08 Ink-supply tank for a printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59102843A JP2563769B2 (en) 1984-05-22 1984-05-22 Printer ink tank

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP11751591A Division JPH04226368A (en) 1991-05-22 1991-05-22 Ink supply mechanism of printer
JP33006293A Division JPH06278294A (en) 1993-12-01 1993-12-01 Ink tank of printer

Publications (2)

Publication Number Publication Date
JPS60245562A JPS60245562A (en) 1985-12-05
JP2563769B2 true JP2563769B2 (en) 1996-12-18

Family

ID=14338244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59102843A Expired - Lifetime JP2563769B2 (en) 1983-10-13 1984-05-22 Printer ink tank

Country Status (1)

Country Link
JP (1) JP2563769B2 (en)

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