JP2000334980A - Ink jet recorder and ink cartridge - Google Patents

Ink jet recorder and ink cartridge

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Publication number
JP2000334980A
JP2000334980A JP14753899A JP14753899A JP2000334980A JP 2000334980 A JP2000334980 A JP 2000334980A JP 14753899 A JP14753899 A JP 14753899A JP 14753899 A JP14753899 A JP 14753899A JP 2000334980 A JP2000334980 A JP 2000334980A
Authority
JP
Japan
Prior art keywords
ink
ink cartridge
elastic wave
generating means
cartridge
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
JP14753899A
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Japanese (ja)
Inventor
Minoru Usui
稔 碓井
Original Assignee
Seiko Epson Corp
セイコーエプソン株式会社
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, セイコーエプソン株式会社 filed Critical Seiko Epson Corp
Priority to JP14753899A priority Critical patent/JP2000334980A/en
Priority claimed from US09/573,335 external-priority patent/US6799820B1/en
Priority claimed from AU36339/00A external-priority patent/AU742064C/en
Publication of JP2000334980A publication Critical patent/JP2000334980A/en
Application status is Pending legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17566Ink level or ink residue control
    • B41J2002/17583Ink level or ink residue control using vibration or ultra-sons for ink level indication

Abstract

PROBLEM TO BE SOLVED: To surely detect a residual quantity of ink without providing a complicated seal structure due to attaching of a detection electrode.
SOLUTION: This recorder comprises a recording head that is supplied with ink from an ink cartridge 3 containing ink in a vessel having an ink supplying hole. The recorder is equipped with an elastic wave generating means 7 for propagating an elastic wave to the ink cartridge 3 in a condition that the ink cartridge 3 is loaded on a regular position. The change in the propagation condition or the resonant frequency of the elastic wave due to the reduction of the residual quantity of the ink is detected, thereby determining the residual quantity of the ink.
COPYRIGHT: (C)2000,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、圧力発生手段により圧力発生室のインクを印刷データに対応させて加圧し、ノズル開口からインク滴を吐出させて印刷する記録装置に適したインクカートリッジに関する。 The present invention relates pressurizes so as to correspond to the print data to the ink in the pressure generating chamber by a pressure generating means, an ink cartridge suitable for the recording apparatus for printing by ejecting ink droplets from the nozzle openings.

【0002】 [0002]

【従来の技術】インクジェット記録装置は、圧力発生室を加圧する圧力発生手段と、加圧されたインクをノズル開口からインク滴として吐出するノズル開口を備えたインクジェット記録ヘッドをキャリッジに搭載し、記録ヘッドに流路を介してインクタンクのインクを供給しながら印刷を継続可能に構成されている。 Ink jet recording apparatus is equipped with a pressure generating means for pressurizing the pressure generating chamber, an ink jet recording head having a nozzle opening for ejecting pressurized ink as ink droplets from the nozzle openings on the carriage, the recording It is continued configured to be able to print while supplying the ink in the ink tank through a passage in the head. このようなインクタンクは、インクが消費された時点で、ユーザが簡単に交換できるように着脱可能なカートリッジとして構成されている。 Such ink tank, when ink is consumed, the user is configured as a removable cartridge for easy replacement.

【0003】そして、インクカートリッジのインクは、 [0003] The ink of the ink cartridge,
通常、記録ヘッドでのインク滴の吐出数やメンテナンスにより吸引されたインク量をソフトウエアにより積算したり、またインクカートリッジに液面検出用の電極を取付けることにより、消費された時点が管理されている。 Usually, the number of discharges and the ink amount sucked by the maintenance of the ink droplets in the recording head or integrated by software, and by attaching an electrode for liquid level detection to the ink cartridge, is managed when consumed there.

【0004】 [0004]

【発明が解決しようとする課題】しかしながら、前者の管理方法にあってはユーザサイドでの印刷形態等により誤差が生じたり、また同一カートリッジの再装着時には大きな誤差が生じるという問題があり、また後者の方法は、実量を検出できるため、残量を高い信頼性で管理できる反面、インクの導電性に頼るため、検出可能なインクの種類が限定されたり、また電極のシール構造が複雑化する等の問題がある。 However [0007], there is a problem that or errors are introduced, also the remounting time of the same cartridge significant error caused by printing forms and the like of the user side In the management method of the former, the latter the method allows detection of the actual amount, although capable of managing the remaining amount with high reliability, since rely on conductive ink, or the type of detectable ink is limited, also the sealing structure of the electrodes is complicated there is a problem and the like. 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、インク残量を確実に検出でき、かつ複雑なシール構造を不要としたインクカートリッジを提供することである。 The present invention was made in view of such problems, and has as its object, can reliably detect the ink remaining amount, and to provide an ink cartridge that eliminates the need for complicated sealing structure .

【0005】 [0005]

【課題を解決するための手段】このような問題を解消するために本発明においては、インク供給口を備えた容器にインクを収容したインクカートリッジからインクの供給を受ける記録ヘッドを備えた記録装置において、前記インクカートリッジが正規の位置に装填された状態で前記インクカートリッジに弾性波を伝達する弾性波発生手段を備えるようにした。 In the present invention SUMMARY OF] To solve such a problem, a recording apparatus having a recording head supplied with ink from an ink cartridge containing ink in a container having an ink supply port in was to include an elastic wave generating means in which the ink cartridge is to transmit acoustic waves in the ink cartridge in a state of being loaded in the normal position.

【0006】 [0006]

【作用】弾性波発生手段からインクカートリッジに弾性波を照射して、インクの残量による弾性波の伝搬形態や共振周波数の変化を検出してインクの残量を判定する。 [Action] is irradiated with the elastic wave to the ink cartridge from the elastic wave generating means detects a change in the propagation mode and the resonance frequency of the acoustic wave due to the remaining amount of ink is determined remaining amount of ink.

【0007】 [0007]

【発明の実施の形態】そこで以下に本発明の詳細を図示した実施例に基づいて説明する。 It will be described with reference to examples illustrating the details of the present invention to therefore DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS. 図1(イ)、(ロ) Figure 1 (a), (b)
は、それぞれ本発明のインクジェット記録装置の一実施例を示すものであって、記録用紙の幅方向に往復動可能なキャリッジ1には、下面に記録ヘッド2が固定され、 Are each there is shown an embodiment of an ink jet recording apparatus of the present invention, the reciprocable carriage 1 in the width direction of the recording sheet, the recording head 2 is fixed to the lower surface,
またインクカートリッジ3の搭載面側にインク供給針4 The ink supply needle 4 on the mounting surface side of the ink cartridge 3
が設けられたサブタンクユニット5が搭載されている。 Is the sub-tank unit 5 provided are mounted.
インクカートリッジ3の載置領域には、内部のインクの液面よりも下方の位置、この実施例では底部に対向するように凸部6を形成して、ここに圧電振動子などの弾性波発生手段7が設けられている。 The mounting area of ​​the ink cartridge 3, a position below the liquid level of the ink, in this embodiment by forming the convex portion 6 so as to face the bottom, the elastic wave generating such as a piezoelectric vibrator here It means 7 is provided.

【0008】サブタンクユニット5は、図2に示したようにインク供給針4を介して供給されるインクを収容するインク室8と、記録ヘッド2に連通するインク供給路9との間に差圧により開閉する膜弁10とを設けて構成されている。 [0008] the sub-tank unit 5, the pressure difference between the ink chamber 8 for accommodating the ink supplied through the ink supply needle 4, as shown in FIG. 2, the ink supply path 9 communicating with the recording head 2 It is constructed by providing a membrane valve 10 to open and close by. なお、図中符号11はフィルタを示す。 Incidentally, reference numeral 11 denotes a filter.

【0009】図3(イ)は、上述した記録装置に適した単色、例えばブラックインク用のインクカートリッジの一実施例を示すものであって、インクを収容する容器1 [0009] FIG. 3 (b) is a single color which is suitable for the above-described recording apparatus, there is shown an embodiment of an ink cartridge for example, black ink, a container 1 for containing ink
2に、記録装置のインク供給針4に接合するインク供給口13を形成して構成されており、容器12の底面12 2, is constituted by forming an ink supply port 13 which is joined to the ink supply needle 4 of the recording apparatus, the bottom surface 12 of the container 12
aには、凸部6と係合する凹部14に超音波伝達材、例えばゲル化材15を収容して構成されている。 The a, ultrasonic transmission member into the recess 14 to be engaged with the convex portion 6 is configured to accommodate, for example, gelling material 15.

【0010】インク供給口13は、インク供給針4と液密に係合するパッキン16と、バネ17によりパッキン16に常時弾接された弁体18が設けられていて、インク供給針4が挿入された状態では弁体18がインク供給針4に押されてインク流路を開放するように構成されている。 [0010] The ink supply port 13, a gasket 16 which engages in a fluid-tight manner with the ink supply needle 4, have the valve body 18, which is always elastically against the packing 16 is provided by a spring 17, the ink supply needle 4 is inserted is configured to the valve body 18 in the state is pressed by the ink supply needle 4 opens the ink flow path. なお、図中符号19は、インクカートリッジのインク等に関する情報を格納した半導体記憶手段を示す。 Incidentally, reference numeral 19 denotes a semiconductor memory means for storing information relating to the ink of the ink cartridge.

【0011】図3(ロ)は、複数種類のインクを収容するインクカートリッジの一実施例を示すものであって、 [0011] FIG. 3 (b), there is shown an embodiment of an ink cartridge containing a plurality of kinds of inks,
容器20は壁により複数の領域、この実施例では3つの部屋21、22、23に分割され、各部屋に連通させてインク供給口24、25、26を形成して構成されている。 Container 20 a plurality of regions by a wall, in this embodiment is divided into three chambers 21, 22, 23 are configured to form an ink supply port 24, 25 and 26 are communicated with each room. 底面20aの各部屋21、22、23に対向する領域には、前述の実施例と同様に弾性波発生手段からの弾性波を伝達するためのゲル化材27、28、29が筒状の凹部30、31、32に収容されている。 In a region facing the room 21, 22, 23 of the bottom surface 20a, the recess gelling material 27, 28 and 29 cylindrical for transmitting acoustic waves from Example similarly to the elastic wave generating means described above It is housed in 30, 31 and 32.

【0012】この実施例において、インクカートリッジ3のインク供給口13をサブタンク5のインク供給針4 [0012] In this embodiment, the ink supply needle 4 of the sub-tank 5 to the ink supply port 13 of the ink cartridge 3
に挿通すると、弁体18がバネ17の付勢力に抗して後退し、インク流路が形成され、インクカートリッジ3のインクがインク室8に流れ込む。 When inserted, the valve element 18 is retracted against the urging force of the spring 17, the ink flow path is formed, the ink of the ink cartridge 3 flows into the ink chamber 8. インク室8にインクが充填された段階で、記録ヘッド2のノズル開口に負圧を作用させて記録ヘッド2にインクを充填した後、記録動作を実行する。 In stage ink in the ink chamber 8 is filled, after filling the ink to the recording head 2 by the action of negative pressure to the nozzle openings of the recording head 2, a recording operation is executed.

【0013】記録動作により記録ヘッド2でインクが消費されると、膜弁10の下流側の圧力が低下するため、 [0013] When the ink in the recording head 2 by the recording operation is consumed, the pressure on the downstream side of the membrane valve 10 is lowered,
図2に示したように膜弁10が弁体30から離れて開弁する。 Membrane valve 10 as shown in FIG. 2 is opened away from the valve body 30. これによりインク室のインクが記録ヘッド2に流れこみ、これに随伴してインクカートリッジ3のインクがサブタンク5に流れ込む。 Thus ink in the ink chamber is crowded flows into the recording head 2, the ink of the ink cartridge 3 flows into the sub-tank 5 and associated thereto.

【0014】一方、記録装置の動作期間中には一定周期で弾性波発生手段7に駆動信号が供給される。 [0014] On the other hand, during operation of the recording device driving signal to the acoustic wave generating means 7 at a constant period is supplied. 弾性波発生手段7により発生された弾性波は、凸部6から放射されてカートリッジ3の底面12aのゲル化材15を伝搬してカートリッジ内のインクに伝達される。 Acoustic waves generated by the elastic wave generating means 7 is emitted from the convex portion 6 propagates through the gel material 15 of the bottom surface 12a of the cartridge 3 is transmitted to the ink in the cartridge.

【0015】ところで、液中を伝搬する弾性波は、液の密度や液面レベルにより、液中での共振周波数、音響インピーダンス、液表面で生じる反射波の到来時間等のさまざまな音響学的なパラメータが変化する。 By the way, the elastic wave propagating in the liquid, the liquid density and liquid level, resonance frequency in the liquid, acoustic impedance, various acoustic arrival time of the reflected wave generated at the liquid surface parameters change. したがって、インクの組成が一定である場合には、液柱での共振周波数、音響インピーダンス、液表面で生じる反射波の到来時間がインク量にだけ左右されることになるから、 Therefore, if the composition of ink is fixed, the resonance frequency in the liquid column, acoustic impedance, because the arrival time of the reflected wave generated at the liquid surface will be dependent only on the amount of ink,
弾性波発生手段7の励起時の共振周波数、音響インピーダンスの変化や、また励起後、表面からの反射波が弾性波発生手段7に到達するまでの時間を検出することにより、インク量を検出することができる。 Resonant frequency in the excitation of the acoustic wave generating means 7, changes in the acoustic impedance, also after excitation, by reflected waves from the surface to detect the time to reach the acoustic wave generating means 7, for detecting the amount of ink be able to. また、弾性波は、インクに含まれている粒子を振動させるから、顔料等の沈殿を防止するのに寄与する。 The elastic wave, since vibrates the particles contained in the ink, which contributes to prevent precipitation of the pigment.

【0016】このようにして、印刷動作やメンテナンス動作によりインクカートリッジ3のインクがインクエンド近くまで減少して、弾性波発生手段7の共振周波数や、弾性波発生手段7の励起時の音響インピーダンスが低下したり、また励起後の反射波が受信できなくなった場合には、インクニアエンドであると判定してインクカートリッジの交換を促すことができる。 [0016] Thus, the ink in the ink cartridge 3 is reduced to near ink end by printing operation and maintenance operation, and the resonant frequency of the acoustic wave generating means 7, the acoustic impedance at the excitation of the acoustic wave generating means 7 decrease or, also when the reflected wave after the excitation can not be received may prompt the replacement of the ink cartridge is determined that the ink near end.

【0017】なお、インクカートリッジ3が規定通りに装着されていない場合には、弾性波の伝搬形態が極端に変化するから、これを検知した場合には警報を発して、 [0017] Incidentally, when the ink cartridge 3 is not mounted as prescribed, since the propagation mode of the acoustic wave changes extremely, issues an alarm when detecting this,
ユーザにインクカートリッジ3の点検を促すことができる。 It is possible to promote the inspection of the ink cartridge 3 to the user.

【0018】ところで、弾性波発生手段7の共振周波数、出力、さらにはカートリッジ全体としての音響インピーダンスは、容器12を構成する材料や、また収容されているインクにより影響を受ける。 By the way, the resonance frequency of the elastic wave generating means 7, the output, and further the acoustic impedance of the entire cartridge is affected by the ink that is material and, also accommodated constituting the container 12. 一方、インクの改良等による印字品質改良の成果を既存の記録装置にフィードバックするため、特開平5-193127号公報に見られるように駆動条件やインク量を格納した半導体記憶手段がインクカートリッジに付帯させることも提案されている。 Meanwhile, in order to feed back the results of print quality improvement by improving of ink in an existing printing apparatus, supplementary semiconductor storage means for storing the driving condition and the ink amount as seen in Japanese Unexamined Patent Publication No. 5-193127 is an ink cartridge it has also been proposed to.

【0019】したがって、インクカートリッジ3の容器を構成する材料や、また収容されているインクによる変動分に関するデータを半導体記憶手段19に格納しておくと、インク残量をより正確に検出することができる。 [0019] Thus, the material and constituting the container of the ink cartridge 3, also when storing data relating to variation due to ink stored in the semiconductor storage means 19, is possible to more accurately detect the remaining amount of ink it can.

【0020】図4、図5は、それぞれ本発明の他の実施例を示すものであって、図4に示した実施例においては、インクカートリッジ3の底面12aが上下方向に斜めとなるように形成されており、また図5に示した実施例では側面12bのインク供給口13寄りに凸部6'を形成してここに弾性波発生手段7'を設け、またこの凸部6'に係合するようにゲル化材15'がインクカートリッジ3設けられている。 [0020] 4, 5, respectively there is shown another embodiment of the present invention, in the embodiment shown in FIG. 4, as the bottom surface 12a of the ink cartridge 3 is oblique in the vertical direction is formed and, also in the 'elastic wave generating means 7 here forms the' convex portion 6 to the ink supply port 13 side of the side surface 12b in the embodiment provided as shown FIG. 5, also engaged with the convex portion 6 ' gelling material 15 'is the ink cartridge 3 is provided so as to focus. これらの実施例によれば、インク残量が少なくなり、弾性波発生手段7、7'の照射領域の一部が液面から露出するようになると、共振周波数や音響インピーダンスが液面の変化Δh1、Δh2に対応して連続的に変化するから、その変化の度合を検出することにより、インクニアエンド状態からインクエンドまでの過程を正確に検出することができる。 According to these embodiments, the ink remaining amount is reduced, when a part of the irradiation region of the elastic wave generating means 7, 7 'becomes exposed from the liquid surface, changes the resonant frequency and the acoustic impedance of the liquid surface Δh1 since continuously changes in response to [Delta] h2, by detecting the degree of the change, it is possible to accurately detect the process until the ink end from an ink near-end state.

【0021】なお、上述の実施例においては、容器にインクを直接収容する形式のインクカートリッジに例を採って説明したが、容器に多孔質弾性体を装填し、多孔質弾性体にインクを含浸させる形式のインクカートリッジに適用しても同様の作用を奏する。 [0021] In the above embodiment has been described taking an example ink cartridge of the type that directly stores ink in a container, a porous elastic body is loaded into the container, impregnating the ink into the porous elastic body It is applied in the form of an ink cartridge to achieve the same effect.

【0022】さらには、上述の実施例においては、液面での反射波に基づいてインク残量を検出する場合にも、 Furthermore, in the above embodiment, even in the case of detecting the remaining ink amount based on the reflected wave at the liquid surface,
同一の弾性波発生手段により弾性波の送波と、受波とを行っているが、受波用のものを取付けても同様の作用を奏する。 And transmitting the acoustic waves by the same elastic wave generating means, it is performed and reception, obtains the same operational be attached to one for reception. なお、液面からの反射波の強度を上げるためには、図6に示したように音響インピーダンスが高く、かつ耐インク性を備えた材料、たとえばセラミックの板材33をフロート34に取付けて、インク液面を覆うのが望ましい。 In order to increase the strength of the reflected wave from the liquid surface, high acoustic impedance as shown in FIG. 6, and attached material having ink resistance, for example, a ceramic plate 33 to the float 34, the ink it is desirable to cover the liquid surface.

【0023】 [0023]

【発明の効果】以上、説明したように本発明においては、インク供給口を備えた容器にインクを収容したインクカートリッジからインクの供給を受ける記録ヘッドを備えた記録装置において、インクカートリッジが正規の位置に装填された状態でインクカートリッジに弾性波を伝達する弾性波発生手段を備えたので、弾性波発生手段からインクカートリッジに弾性波を照射することにより、インクの残量による弾性波の伝搬形態や共振周波数に基づいて、インクの残量を判定することができ、また検出電極の埋め込みが不要となって射出成形工程の簡素化と、信頼性の向上を図ることができる。 Effect of the Invention] above, in the present invention as described, a recording apparatus having a recording head supplied with ink from an ink cartridge containing ink in a container having an ink supply port, the ink cartridge is a regular since an elastic wave generating means for transmitting the elastic wave to the ink cartridge in a state of being loaded in position, by irradiating the acoustic wave to the ink cartridge from the acoustic wave generating means, the propagation form of an elastic wave by the remaining amount of ink and based on the resonance frequency, it is possible to determine the remaining amount of ink, also a simplification of the injection molding process of the detecting electrode embedded becomes unnecessary, it is possible to improve the reliability.

【0024】さらには、インクカートリッジが規定通りに装着されていない場合には、弾性波の伝搬形態が極端に変化するから、インクカートリッジの装着不良を検出して、ユーザに再装着を流すことができ、インクカートリッジの装着ミスによる印字不良を未然に防止することができる。 [0024] Further, when the ink cartridge is not mounted as prescribed, since the propagation mode of the acoustic wave changes extremely detects poor mounting of the ink cartridge, it is made to flow again attached to the user can, defective printing by mounting errors of the ink cartridge can be prevented. さらには、インクカートリッジ側に比較的安価なゲル化材を設けたので、インクカートリッジに弾性波発生手段を設ける場合に比較してコストとの低減を図りつつ、確実に超音波を伝達することができる。 Furthermore, since there is provided a relatively inexpensive gelled material in the ink cartridge side, while reducing the cost as compared to the case where the elastic wave generating means in the ink cartridge, it can be reliably transmitted ultrasound it can.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】図(イ)、(ロ)は、それぞれ本発明のインクジェット記録装置の一実施例を、インクカートリッジを取り外した状態、及び装着した状態で示す図である。 [1] Figure (a), (b) is a diagram showing a state of an embodiment, being removed the ink cartridge, and that the mounting of the ink jet recording apparatus of the present invention, respectively.

【図2】サブタンクの一実施例を示す断面図である。 Is a sectional view showing an embodiment of FIG. 2 sub-tank.

【図3】図(イ)、(ロ)は、それぞれ同上インクカートリッジの一実施例を示す図である。 [3] FIG. (A), (b) is a diagram showing an embodiment of the same ink cartridge, respectively.

【図4】本発明のインクジェット記録装置の他の実施例を、インクカートリッジを装着した状態で示す図である。 Another embodiment of the ink jet recording apparatus of the present invention; FIG diagrams showing a state of mounting the ink cartridge.

【図5】本発明のインクジェット記録装置の他の実施例を、インクカートリッジを装着した状態で示す図である。 Another embodiment of the ink jet recording apparatus of the present invention; FIG diagrams showing a state of mounting the ink cartridge.

【図6】本発明の記録装置に適したインクカートリッジの他の実施例を示す断面図である。 6 is a sectional view showing another embodiment of an ink cartridge suitable for the recording apparatus of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 キャリッジ 2 記録ヘッド 3 インクカートリッジ 5 サブタンクユニット 6 凸部 7 弾性波発生手段 13 インク供給口 15 ゲル化材 1 the carriage 2 recording head 3 ink cartridge 5 sub-tank unit 6 protrusions 7 elastic wave generating means 13 ink supply ports 15 gelling material

Claims (6)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 インク供給口を備えた容器にインクを収容したインクカートリッジからインクの供給を受ける記録ヘッドを備えた記録装置において、 前記インクカートリッジが正規の位置に装填された状態で前記インクカートリッジに弾性波を伝達する弾性波発生手段を備えたインクジェット記録装置。 In the recording apparatus provided with a 1. A recording head from an ink cartridge containing ink in a container having an ink supply port supplied with ink, the ink cartridge in a state in which the ink cartridge is loaded into the normal position an ink jet recording apparatus provided with an elastic wave generating means for transmitting acoustic waves.
  2. 【請求項2】 前記弾性波発生手段の共振周波数、また音響インピーダンスにより前記インクカートリッジのインク量を判定する請求項1に記載のインクジェット記録装置。 2. An ink jet recording apparatus according to claim 1 determining the amount of ink in the ink cartridge by the resonance frequency, also the acoustic impedance of the elastic wave generating means.
  3. 【請求項3】 インク供給口を備えた容器にインクを収容したインクカートリッジおいて、前記インク収容領域に記録装置の弾性波発生手段と係合して弾性波の伝達を可能にする超音波伝達材を備えたインクカートリッジ。 3. Keep ink cartridge containing ink in a container having an ink supply port, ultrasonic transmission that enables the transmission of acoustic waves engage the elastic wave generating means of the recording apparatus to the ink receiving area ink cartridge with a wood.
  4. 【請求項4】 前記超音波伝達材がゲル化材により構成されている請求項3に記載のインクカートリッジ。 Wherein said ink cartridge according to claim 3, ultrasound transmission member is formed by a gelling material.
  5. 【請求項5】 前記弾性波伝達材が凹部に収容されている請求項3に記載のインクカートリッジ。 5. The ink cartridge according to claim 3, wherein the acoustic wave transmitted member is accommodated in the recess.
  6. 【請求項6】 記録装置の弾性波発生手段からの弾性波の伝達状態を規定するデータを格納した半導体記憶手段を備えたインクカートリッジ。 6. An ink cartridge having a semiconductor memory means for storing data defining a transmission state of the elastic wave from the elastic wave generating means of the recording apparatus.
JP14753899A 1999-05-27 1999-05-27 Ink jet recorder and ink cartridge Pending JP2000334980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14753899A JP2000334980A (en) 1999-05-27 1999-05-27 Ink jet recorder and ink cartridge

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JP2007136901A (en) * 2005-11-18 2007-06-07 Seiko Epson Corp Liquid detector, and liquid storage vessel equipped with it
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