JPS6315915B2 - - Google Patents
Info
- Publication number
- JPS6315915B2 JPS6315915B2 JP55076257A JP7625780A JPS6315915B2 JP S6315915 B2 JPS6315915 B2 JP S6315915B2 JP 55076257 A JP55076257 A JP 55076257A JP 7625780 A JP7625780 A JP 7625780A JP S6315915 B2 JPS6315915 B2 JP S6315915B2
- Authority
- JP
- Japan
- Prior art keywords
- ink
- air
- collection chamber
- printing
- print head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 4
- 238000007639 printing Methods 0.000 description 21
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
- B41J2/19—Ink jet characterised by ink handling for removing air bubbles
Description
【発明の詳細な説明】
本発明はインクジエツト記録装置に係わり、特
にインク供給系における気泡対策を改善したイン
クオンデマンド型のインクジエツト記録装置に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inkjet recording apparatus, and more particularly to an ink-on-demand type inkjet recording apparatus with improved measures against bubbles in an ink supply system.
加圧室の容積を減少させることによりノズルか
らインク滴を射出し印字を行なうインクオンデマ
ンド型のインクジエツト印字装置は普通紙に印字
できること、印字音が小さいこと、印字エネルギ
が小さいことなどの利点がある。しかしながら、
加圧室内に気泡が存在すると、インク滴の射出が
困難になるという欠点があり、この欠点をいかに
克服するかが重要な課題である。 Ink-on-demand type inkjet printing devices, which print by ejecting ink droplets from a nozzle by reducing the volume of a pressurized chamber, have the advantages of printing on plain paper, low printing noise, and low printing energy. be. however,
The presence of air bubbles in the pressurized chamber has the drawback of making it difficult to eject ink droplets, and how to overcome this drawback is an important issue.
たとえば従来提案された気泡対策の例として、
特開昭51−88224号を第１図により説明する。こ
の例ではインクタンク１とヘツド２の連絡流路中
にセラミツクフイルタなどの毛管フイルタ３を配
置し、毛管フイルタ３により捕捉された気泡は、
空気捕集器４に集められ、最終的には空気抜き装
置５から外部へと排出される。しかしながら第１
図に示された構造では、毛管フイルタ３と、空気
捕集器４の上下の位置関係が規定され、手に持つ
て印字を行なう小型携帯電卓用プリンタなどには
応用が困難である。たとえば第１図において上下
逆にして印字を行なえば空気捕集器４内の空気は
毛管フイルタ３の前面に逆流し、遂には毛管フイ
ルタ３を通過してヘツド１に到達するか、あるい
はヘツド１へのインクの供給が遮断され印字が不
可能になる。 For example, as an example of bubble countermeasures proposed in the past,
JP-A-51-88224 will be explained with reference to FIG. In this example, a capillary filter 3 such as a ceramic filter is placed in the communication flow path between the ink tank 1 and the head 2, and the air bubbles captured by the capillary filter 3 are
It is collected in the air collector 4 and finally discharged to the outside from the air purge device 5. However, the first
In the structure shown in the figure, the vertical positional relationship between the capillary filter 3 and the air collector 4 is defined, and it is difficult to apply it to a printer for a small portable calculator that is held in the hand for printing. For example, in FIG. 1, if printing is performed upside down, the air in the air collector 4 flows back to the front of the capillary filter 3, and finally passes through the capillary filter 3 to reach the head 1, or The ink supply to the printer is cut off, making printing impossible.
次に他の気泡対策の例について、特開昭52−
130330号を第２図により説明する。インクを消費
し終つた場合、インクタンク内の空気が印字ヘツ
ドに達するか、印字ヘツドのノズルから空気が逆
流して印字が停止する。この場合インクタンクを
交換しても印字ヘツド内の気泡を排除しなけれ
ば、印字の再開をすることができない。そこでこ
の例では印字ヘツドに空気が侵入する前に、イン
ク終了の検出を行なつてインク交換をしようとい
うものである。インクタンク底部に電極６，７を
設け、インク消費によつてゴム袋８が電極６，７
間のインク量を減少させ、その時の電極６，７間
の電気抵抗変化を検出する。しかしながら、この
例ではゴム袋８がいかに電極７に密着したとして
も、電極６と電極７をつなぐインクの層が存在
し、その結果、通常時とインク終了検出時の抵抗
値変化が小さく、確実な検出が難しかつた。 Next, regarding other examples of bubble countermeasures,
No. 130330 will be explained with reference to FIG. When the ink is used up, air in the ink tank reaches the print head, or air flows back through the print head nozzles, stopping printing. In this case, even if the ink tank is replaced, printing cannot be resumed unless the air bubbles in the print head are removed. Therefore, in this example, the ink is replaced by detecting the end of ink before air enters the print head. Electrodes 6 and 7 are provided at the bottom of the ink tank, and as the ink is consumed, the rubber bag 8 closes to the electrodes 6 and 7.
The amount of ink between the electrodes 6 and 7 is decreased, and the change in electrical resistance between the electrodes 6 and 7 at that time is detected. However, in this example, no matter how closely the rubber bag 8 is attached to the electrode 7, there is a layer of ink that connects the electrodes 6 and 7, and as a result, the change in resistance value between normal and ink end detection is small and reliable. It was difficult to detect.
上述した第１図、第２図の従来技術では、印字
姿勢の影響、およびインク終了検出の不確実さな
どのため、どのような姿勢でも印字する必要のあ
る小型携帯型電卓用プリンタへのインクオンデマ
ンド型インクジエツトの応用が難しかつた。 In the prior art shown in FIGS. 1 and 2, the ink supply to a small portable calculator printer that needs to print in any orientation is affected by the influence of the printing orientation and the uncertainty of ink end detection. It was difficult to apply on-demand inkjet.
したがつて、本発明の目的は、どのような姿勢
においても印字ヘツドへの円滑なインクの供給が
できると共に気泡の侵入防止が可能なインクオン
デマンド型のインクジエツト記録装置を提供する
点にある。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an ink-on-demand type inkjet recording device that can smoothly supply ink to a print head in any posture and can prevent air bubbles from entering.
第３図に本発明の実施例を示す。１０は記録
紙、１１はプラスチツクの射出成形により製造さ
れた、ノズル９を有する印字ヘツド、１２はイン
ク噴出のエネルギを与える圧電素子、１３は印字
ヘツドのゴミが流入しないように設けられたフイ
ルタ、１４はインクのぬれやすい樹脂、たとえば
ポリビニールホルマール樹脂製の多孔質部材、１
５は空気捕集室、１６は空気捕集室１５内に設け
られたインク導路、１７はステンレススチール製
中空針からなる結合部材、１８はインクカートリ
ツジで、先端にゴム栓１９を有する。２０は細管
で、電極２１，２２の間に配置されている。２３
は多孔質部材１４と同質材料からなる多孔質部
材、２４は空気取入口である。通常時、多孔質部
材２３から、印字ヘツド１１に至るインク供給系
はインク２５により満たされている。 FIG. 3 shows an embodiment of the present invention. 10 is a recording paper, 11 is a print head manufactured by plastic injection molding and has a nozzle 9, 12 is a piezoelectric element that provides energy for ejecting ink, and 13 is a filter provided to prevent dust from flowing into the print head. 14 is a porous member made of resin that is easily wetted by ink, such as polyvinyl formal resin;
5 is an air collection chamber, 16 is an ink guide provided in the air collection chamber 15, 17 is a connecting member made of a stainless steel hollow needle, and 18 is an ink cartridge, which has a rubber stopper 19 at its tip. 20 is a thin tube arranged between electrodes 21 and 22. 23
2 is a porous member made of the same material as the porous member 14, and 24 is an air intake port. Normally, the ink supply system from the porous member 23 to the print head 11 is filled with ink 25.
以上の構成においてその動作を説明する。図示
されていない機構により印字ヘツド１１は記録紙
１０と相対的な運動を行ない、図示されていない
制御回路の働らきにより圧電素子１２が駆動さ
れ、ノズル９からインク２５が射出され印字が行
なわれる。インク消費に伴い多孔質部材２３内の
インクは徐々に印字ヘツド１１の方向へ移動す
る。それに伴い空気取入口２４からは空気がイン
クカートリツジ１８内に流入する。通常は上記の
ようにして印字を行なうが、インク終了あるいは
何らかの原因により多孔質部材２３中の気泡が印
字ヘツドに向かつて流出し、細管２０に達する
と、電極２１，２２の間の抵抗値が無限大とな
る。この抵抗値変化を検出し、印字を停止すれ
ば、気泡の印字ヘツド１１への流入を防ぐことが
できる。この場合細管２０はポリエチレン等の疎
水性を有する材料で作つた。管内表面がなめらか
な細い円管が望ましい。 The operation of the above configuration will be explained. The printing head 11 moves relative to the recording paper 10 by a mechanism not shown, and the piezoelectric element 12 is driven by the action of a control circuit not shown, and ink 25 is ejected from the nozzle 9 to perform printing. . As the ink is consumed, the ink within the porous member 23 gradually moves toward the print head 11. Accordingly, air flows into the ink cartridge 18 from the air intake port 24. Normally, printing is performed as described above, but when the ink runs out or for some other reason, the air bubbles in the porous member 23 flow toward the printing head and reach the thin tube 20, and the resistance value between the electrodes 21 and 22 increases. Becomes infinity. By detecting this resistance value change and stopping printing, it is possible to prevent air bubbles from flowing into the printing head 11. In this case, the thin tube 20 was made of a hydrophobic material such as polyethylene. A thin circular tube with a smooth inner surface is desirable.
第３図の電極２２より印字ヘツド１１に近い部
分に何らかの原因で発生した気泡、あるいは細管
２０で気泡検出ができないような小さな気泡、あ
るいはインクカートリツジ１８内のインクを消費
し終わり、インクカートリツジ１８を交換する
時、結合部材１７と、ゴム栓１９との新しい結合
に伴い結合部材１７の先端に存在する気泡、以上
のような気泡は、多孔質部材１４に阻まれ空気捕
集室１５内にたまる。空気捕集室１５にはインク
導路１６が設けられているため、どのような姿勢
においても気泡が多孔質部材１４を通過して印字
ヘツド１１に達したり、インクの供給が遮断され
て印字不能になることはない。第４図、第５図で
インク導路１６について更に詳しく説明する。第
４図は第３図の実施例のＱ−Ｑ断面を示す。イン
ク導路１６は深さ、巾とも約0.2mmの断面寸法を
有する溝である。第６図に示すように、空気捕集
室１５内の気泡４０がある大きさになり、最悪の
姿勢で印字を行なつても、インク導路１６の毛細
管力によりインク２５は多孔質部材１４に達し、
気泡４０が多孔質部材１４を通過したり、インク
供給が遮断されたりして印字が不可能となること
がない。 Air bubbles that have occurred for some reason in the area closer to the print head 11 than the electrode 22 in FIG. 18, the air bubbles existing at the tip of the connecting member 17 due to the new connection between the connecting member 17 and the rubber stopper 19 are blocked by the porous member 14 and are trapped inside the air collection chamber 15. It accumulates. Since the air collection chamber 15 is provided with an ink guide path 16, air bubbles may pass through the porous member 14 and reach the print head 11 in any position, or the ink supply may be cut off and printing may become impossible. It will never become. The ink guide path 16 will be explained in more detail with reference to FIGS. 4 and 5. FIG. 4 shows a QQ cross section of the embodiment shown in FIG. The ink guide path 16 is a groove having a cross-sectional dimension of about 0.2 mm in both depth and width. As shown in FIG. 6, even if the air bubbles 40 in the air collection chamber 15 reach a certain size and printing is performed in the worst position, the ink 25 is transferred to the porous member 14 by the capillary force of the ink guide path 16. reached,
Printing will not become impossible due to air bubbles 40 passing through the porous member 14 or ink supply being cut off.
以上述べた実施例でわかるように、どのような
姿勢でもインク供給可能なインク導路１６を有す
る空気捕集室１５を持ち、さらにどのような姿勢
でも、ある大きさ以上の気泡の流入を検出できる
細管２０、電極２１，２２を持つことで、通常印
字時、およびインク終了時における気泡の印字ヘ
ツド１１への侵入を防止でき、小型携帯プリンタ
へのインクオンデマンド型インクジエツトの応用
が可能となる。 As can be seen from the embodiments described above, the air collection chamber 15 has an ink guide path 16 that can supply ink in any posture, and furthermore, the inflow of air bubbles of a certain size or more can be detected in any posture. By having the capillary tube 20 and electrodes 21 and 22, it is possible to prevent air bubbles from entering the print head 11 during normal printing and when the ink is finished, making it possible to apply ink-on-demand type inkjet to small portable printers. .
なお多孔質部材２３はノズル９の毛細管圧力よ
りも弱く、しかもどのような姿勢でもインク２５
が、ノズル９よりも流出しないだけの負圧を発生
するような材質、形状を選ぶことにより、携帯型
プリンタの姿勢に対する汎用性を増加させる。空
気取入口２４は可能なかぎり、細くしかも長いこ
とが、インクの蒸発を防止するのに有利である。 Note that the porous member 23 is weaker than the capillary pressure of the nozzle 9, and moreover, the ink 25 is
However, by selecting a material and shape that generate more negative pressure than the nozzle 9 to prevent outflow, versatility regarding the posture of the portable printer is increased. It is advantageous for the air intake 24 to be as thin and long as possible to prevent ink evaporation.
また、第４図に示したインク導路の変形として
第６図のような三角状の溝１６−ａを形成するこ
とも考えられる。 It is also conceivable to form a triangular groove 16-a as shown in FIG. 6 as a modification of the ink guide path shown in FIG. 4.
なお第３図において細管２０の太さを適当（た
とえば0.3〜１mm）に選ぶことにより空気捕集室
１５に入つても影響の少ない極く小さい気泡は検
出しないようにできる。このようにすれば気泡検
出の感度が良すぎて、度々インクカートリツジを
交換するような不具合を除くことができる。また
細管の流路抵抗をさげるため、電極２１，２２の
間で一部の短い部分のみ細管にすることも考えら
れる。 In addition, in FIG. 3, by appropriately selecting the thickness of the thin tube 20 (for example, 0.3 to 1 mm), it is possible to prevent extremely small bubbles from being detected even if they enter the air collection chamber 15 and have little influence. In this way, the sensitivity of bubble detection is too high, and problems such as frequent replacement of ink cartridges can be avoided. Furthermore, in order to reduce the flow path resistance of the thin tube, it is also possible to form a thin tube only in a short portion between the electrodes 21 and 22.
また空気捕集室１５内が全て気泡で満たされる
とインク導路１６の機能が停止するため、空気捕
集室１５内への気泡の流入はなるべく少なくする
必要がある。空気捕集室１５へ流入する気泡のう
ち最も多いものは、第７図に示すように、インク
カートリツジ交換時、結合部材１７の先端に形成
されるメニスカスにより、とり残される空気６０
である。 Furthermore, if the inside of the air collection chamber 15 is completely filled with air bubbles, the function of the ink guide path 16 will stop, so it is necessary to reduce the amount of air bubbles flowing into the air collection chamber 15 as much as possible. As shown in FIG. 7, the largest number of air bubbles flowing into the air collection chamber 15 is the air 60 that is left behind by the meniscus formed at the tip of the coupling member 17 when replacing the ink cartridge.
It is.
これを防止するため、第８図ａ，ｂのように結
合部材１７中に部材６１，６２を設けたり、ｃの
ように先端をつぶしたり、あるいは印字に影響の
ない範囲で結合部材１７の内径を小さくする。こ
れらの対策により、通常使用の状態で空気捕集室
の容量に充分余裕を持たせることが可能である。 In order to prevent this, the members 61 and 62 are provided in the coupling member 17 as shown in Fig. 8a and b, the tip is crushed as shown in Fig. 8c, or the inner diameter of the coupling member 17 is Make smaller. By taking these measures, it is possible to provide a sufficient capacity of the air collection chamber during normal use.
以上のように、本発明によれば、インクカート
リツジが印字ヘツドと結合部材によつて結合され
るが、印字ヘツドは結合部材端部からノズルに至
るインク流路途中に壁面に毛細管現象によりイン
クを導く溝からなるインク導路が設けられた空気
捕集室と、空気捕集室のノズル側に設けられたイ
ンクのぬれやすい多孔質部材があるため、気泡は
空気捕集室によつて捕捉されるが、インクは毛細
管現象によりインクを導く溝やインクのぬれやす
い多孔質部材により気泡を含まない状態で円滑に
ノズル側に供給される。したがつて、どのような
姿勢においても印字ヘツドへの円滑なインクの供
給ができると共に気泡侵入防止が可能なインクオ
ンデマンド型のインクジエツト記録装置が提供で
きる。 As described above, according to the present invention, the ink cartridge is connected to the printing head by the connecting member, and the printing head is connected to the wall surface of the ink flow path from the end of the connecting member to the nozzle by capillary action. Air bubbles are captured by the air collection chamber because there is an air collection chamber equipped with an ink guide path consisting of a groove that guides the air bubbles, and a porous member that is easily wetted by ink provided on the nozzle side of the air collection chamber. However, the ink is smoothly supplied to the nozzle side in a bubble-free state due to the grooves that guide the ink by capillary action and the porous member that is easily wetted by the ink. Therefore, it is possible to provide an ink-on-demand type inkjet recording device that can smoothly supply ink to the print head in any posture and can prevent air bubbles from entering.
第１図、第２図は従来の気泡対策を示す図、第
３図は本発明の一実施例を示す断面図、第４図は
第３図の実施例におけるＱ−Ｑ断面を示す図、第
５図は第３図の実施例における気泡存在時のイン
ク供給を示す図、第６図は第４図におけるインク
導路の他例を示す図、第７図は第３図の実施例に
おける結合部材の説明図、第８図は第７図の結合
部材の改良例を示す図。
１１……印字ヘツド、１４……多孔質部材、１
５……空気捕集室、１６……インク導路、１７…
…結合部材、１８……インクカートリツジ、２０
……細管、２１，２２……電極、２３……多孔質
部材。
FIG. 1 and FIG. 2 are diagrams showing conventional bubble countermeasures, FIG. 3 is a sectional view showing an embodiment of the present invention, and FIG. 4 is a diagram showing a Q-Q cross section in the embodiment of FIG. 5 is a diagram showing ink supply when bubbles are present in the embodiment of FIG. 3, FIG. 6 is a diagram showing another example of the ink guide path in FIG. 4, and FIG. FIG. 8 is an explanatory diagram of a coupling member, and FIG. 8 is a diagram showing an improved example of the coupling member shown in FIG. 7. 11...Print head, 14...Porous member, 1
5... Air collection chamber, 16... Ink guide path, 17...
...Connection member, 18...Ink cartridge, 20
... Thin tube, 21, 22 ... Electrode, 23 ... Porous member.
Claims (1)
装置において、 インクを含浸させた多孔質部材を収納すると共
に、壁面に前記インクの消費に伴つて空気を取り
入れる空気取入口を設けたインクカートリツジ
と、 結合部材によつて前記インクカートリツジと結
合され、該結合部材を介して前記インクカートリ
ツジから前記インクの供給を受け、ノズルより前
記インクの噴射をおこなう印字ヘツドとを備える
と共に、 前記印字ヘツドは前記結合部材端部から前記ノ
ズルに至るインク流路途中に壁面に毛細管現象に
より前記インクを導く溝からなるインク導路を設
けた空気捕集室と、前記空気捕集室の前記ノズル
側に設けられた前記インクのぬれやすい多孔質部
材とを具備していることを特徴とするインクジエ
ツト記録装置。[Scope of Claims] 1. In an ink-on-demand type inkjet recording device, there is provided an ink cartridge which houses a porous member impregnated with ink and has an air intake port provided on a wall surface to take in air as the ink is consumed. a print head that is coupled to the ink cartridge by a coupling member, receives the supply of ink from the ink cartridge via the coupling member, and ejects the ink from a nozzle; The print head includes an air collection chamber having an ink guide path formed of a groove that guides the ink by capillary action on the wall surface in the middle of the ink flow path from the end of the coupling member to the nozzle, and the nozzle of the air collection chamber. An inkjet recording device comprising: a porous member which is easily wetted by the ink provided on the side thereof.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7625780A JPS572786A (en) | 1980-06-06 | 1980-06-06 | Ink feeder |
| EP81302090A EP0041777B1 (en) | 1980-06-06 | 1981-05-11 | Ink supply system for a printer |
| DE8181302090T DE3171562D1 (en) | 1980-06-06 | 1981-05-11 | Ink supply system for a printer |
| US06/270,680 US4368478A (en) | 1980-06-06 | 1981-06-04 | Ink supply system for ink jet printers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7625780A JPS572786A (en) | 1980-06-06 | 1980-06-06 | Ink feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS572786A JPS572786A (en) | 1982-01-08 |
| JPS6315915B2 true JPS6315915B2 (en) | 1988-04-06 |
Family
ID=13600148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7625780A Granted JPS572786A (en) | 1980-06-06 | 1980-06-06 | Ink feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS572786A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999001285A1 (en) * | 1997-07-02 | 1999-01-14 | Seiko Epson Corporation | Ink jet recorder |
| JP2003089223A (en) * | 2001-08-13 | 2003-03-25 | Hewlett Packard Co <Hp> | Ink jet print cartridge and method for controlling bubble spread in cartridge |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58187359A (en) * | 1982-04-28 | 1983-11-01 | Canon Inc | System for removing air bubbles in fluid flowline |
| DE69018003T2 (en) | 1989-10-20 | 1995-08-24 | Canon Kk | Cartridge with ink reservoir can be set up on a color jet device. |
| US6000790A (en) * | 1993-08-19 | 1999-12-14 | Fuji Xerox Co., Ltd. | Ink supply device |
| US6007191A (en) * | 1993-08-19 | 1999-12-28 | Fuji Xerox Co., Ltd. | Ink supply unit |
| JP2817656B2 (en) * | 1995-02-21 | 1998-10-30 | 富士ゼロックス株式会社 | Ink supply device and recording device |
| JP4761042B2 (en) * | 2005-11-14 | 2011-08-31 | セイコーエプソン株式会社 | Liquid ejecting head and liquid ejecting apparatus |
| JP4830905B2 (en) * | 2007-02-27 | 2011-12-07 | セイコーエプソン株式会社 | Liquid distribution device and liquid ejection device |
| JP5256665B2 (en) * | 2007-08-13 | 2013-08-07 | セイコーエプソン株式会社 | Ink cartridge and printing apparatus |
| JP5787501B2 (en) * | 2010-08-30 | 2015-09-30 | キヤノン株式会社 | Liquid discharge device and liquid supply unit |
| US10040295B2 (en) * | 2016-02-29 | 2018-08-07 | Seiko Epson Corporation | Liquid supply device, and liquid ejection system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54139531A (en) * | 1978-04-20 | 1979-10-30 | Ricoh Co Ltd | Ink feed mechanism of ink jet recorder |
| JPS54151037A (en) * | 1978-05-18 | 1979-11-27 | Seiko Epson Corp | Ink jet recorder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS548952U (en) * | 1977-06-22 | 1979-01-20 |
-
1980
- 1980-06-06 JP JP7625780A patent/JPS572786A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54139531A (en) * | 1978-04-20 | 1979-10-30 | Ricoh Co Ltd | Ink feed mechanism of ink jet recorder |
| JPS54151037A (en) * | 1978-05-18 | 1979-11-27 | Seiko Epson Corp | Ink jet recorder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999001285A1 (en) * | 1997-07-02 | 1999-01-14 | Seiko Epson Corporation | Ink jet recorder |
| JP2003089223A (en) * | 2001-08-13 | 2003-03-25 | Hewlett Packard Co <Hp> | Ink jet print cartridge and method for controlling bubble spread in cartridge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS572786A (en) | 1982-01-08 |
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