JP2016043624A5 - Recording apparatus and ink remaining amount detection method - Google Patents

Recording apparatus and ink remaining amount detection method Download PDF

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JP2016043624A5
JP2016043624A5 JP2014170891A JP2014170891A JP2016043624A5 JP 2016043624 A5 JP2016043624 A5 JP 2016043624A5 JP 2014170891 A JP2014170891 A JP 2014170891A JP 2014170891 A JP2014170891 A JP 2014170891A JP 2016043624 A5 JP2016043624 A5 JP 2016043624A5
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voltage
electrodes
pulse voltage
pulse
ink
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本発明は記録装置、およびインク残量検出方法に関する。   The present invention relates to a recording apparatus and an ink remaining amount detection method.

上記の課題を解決する本発明の一つの側面に係る記録装置は、
インクを吐出する記録ヘッドと、
少なくとも２つの電極と、
前記２つの電極にパルス電圧を印加するパルス発生手段と、
前記パルス電圧を印加するタイミングを制御する制御手段と、
前記２つの電極に対する前記パルス電圧の印加を開始したときの前記２つの電極間の第１の電圧値と、前記２つの電極に対する前記パルス電圧の印加を終了したときの前記２つの電極間の第２の電圧値と、の差分電圧を取得する取得手段と、
前記差分電圧と閾値を比較することでインクの有無を判定する判定手段と、を備える記録装置であって、
前記パルス発生手段は、前記２つの電極に対して第１のパルス電圧を印加した後に、第２のパルス電圧を印加し、
前記判定手段は、前記第２のパルス電圧を印加したときの前記差分電圧に基づいてインクの有無を判定することを特徴とする。 A recording apparatus according to one aspect of the present invention that solves the above problems is as follows.
A recording head for ejecting ink;
At least two electrodes;
Pulse generating means for applying a pulse voltage to the two electrodes;
Control means for controlling the timing of applying the pulse voltage;
A first voltage value between the two electrodes when the application of the pulse voltage to the two electrodes is started, and a first voltage value between the two electrodes when the application of the pulse voltage to the two electrodes is finished. Acquisition means for acquiring a differential voltage between the voltage value of 2 and
A determination unit that determines the presence or absence of ink by comparing the differential voltage with a threshold value,
The pulse generating means applies a second pulse voltage after applying a first pulse voltage to the two electrodes,
The determination means determines the presence or absence of ink based on the differential voltage when the second pulse voltage is applied.

Claims (10)

インクを吐出する記録ヘッドと、
少なくとも２つの電極と、
前記２つの電極にパルス電圧を印加するパルス発生手段と、
前記パルス電圧を印加するタイミングを制御する制御手段と、
前記２つの電極に対する前記パルス電圧の印加を開始したときの前記２つの電極間の第１の電圧値と、前記２つの電極に対する前記パルス電圧の印加を終了したときの前記２つの電極間の第２の電圧値と、の差分電圧を取得する取得手段と、
前記差分電圧と閾値を比較することでインクの有無を判定する判定手段と、を備える記録装置であって、
前記パルス発生手段は、前記２つの電極に対して第１のパルス電圧を印加した後に、第２のパルス電圧を印加し、
前記判定手段は、前記第２のパルス電圧を印加したときの前記差分電圧に基づいてインクの有無を判定することを特徴とする記録装置。 A recording head for ejecting ink;
At least two electrodes;
Pulse generating means for applying a pulse voltage to the two electrodes;
Control means for controlling the timing of applying the pulse voltage;
A first voltage value between the two electrodes when the application of the pulse voltage to the two electrodes is started, and a first voltage value between the two electrodes when the application of the pulse voltage to the two electrodes is finished. Acquisition means for acquiring a differential voltage between the voltage value of 2 and
A determination unit that determines the presence or absence of ink by comparing the differential voltage with a threshold value,
The pulse generating means applies a second pulse voltage after applying a first pulse voltage to the two electrodes,
The determination apparatus determines the presence or absence of ink based on the differential voltage when the second pulse voltage is applied. 前記制御手段は、前記パルス発生手段が前記第１のパルス電圧を印加した後、所定の待機時間が経過した後に、前記パルス発生手段に前記第２のパルス電圧を印加させることを特徴とする請求項１に記載の記録装置。   The control means causes the pulse generation means to apply the second pulse voltage after a predetermined standby time has elapsed after the pulse generation means has applied the first pulse voltage. Item 2. The recording device according to Item 1. 前記第１のパルス電圧の印加時間と前記第２のパルス電圧の印加時間は同一時間であることを特徴とする請求項１または２に記載の記録装置。   The recording apparatus according to claim 1, wherein the application time of the first pulse voltage and the application time of the second pulse voltage are the same time. 前記待機時間は、前記第１のパルス電圧の印加時間及び前記第２のパルス電圧の印加時間と同一時間であることを特徴とする請求項２に記載の記録装置。   The recording apparatus according to claim 2, wherein the standby time is the same as the application time of the first pulse voltage and the application time of the second pulse voltage. 前記第１のパルス電圧の印加時間と前記待機時間と前記第２のパルス電圧の印加時間とは、１５ｍｓ以上であることを特徴とする請求項４に記載の記録装置。   5. The recording apparatus according to claim 4, wherein the application time of the first pulse voltage, the standby time, and the application time of the second pulse voltage are 15 ms or more. 前記第１のパルス電圧と前記第２のパルス電圧の電圧値は同一であることを特徴とする請求項１乃至５のいずれか１項に記載の記録装置。   6. The recording apparatus according to claim 1, wherein voltage values of the first pulse voltage and the second pulse voltage are the same. 前記取得手段は、前記２つの電極間の電圧値として入力されたアナログデータをデジタルデータに変換する変換手段を有し、
前記判定手段は、前記変換手段で変換された電圧値に基づく差分電圧値と前記閾値とを比較することでインクの有無を判定することを特徴とする請求項１乃至６のいずれか１項に記載の記録装置。 The acquisition means includes conversion means for converting analog data input as a voltage value between the two electrodes into digital data,
The said determination means determines the presence or absence of ink by comparing the difference voltage value based on the voltage value converted by the said conversion means, and the said threshold value. The recording device described. 前記記録ヘッドへ供給されるインクを収容するインクタンクを備え、前記２つの電極は前記インクタンクに設けられていることを特徴とする請求項１乃至７のいずれか１項に記載の記録装置。   The recording apparatus according to claim 1, further comprising an ink tank that stores ink to be supplied to the recording head, wherein the two electrodes are provided in the ink tank. 前記判定手段によって前記インクタンクに残存するインクが所定量以下と判定された場合、前記インクが所定量以下の状態を報知する報知手段を備えることを特徴とする請求項８に記載の記録装置。   The recording apparatus according to claim 8, further comprising a notifying unit that notifies a state in which the ink is not more than a predetermined amount when the determination unit determines that the ink remaining in the ink tank is not more than a predetermined amount. インクを吐出する記録ヘッドと、
少なくとも２つの電極と、
前記２つの電極にパルス電圧を印加するパルス発生手段と、
前記パルス電圧を印加するタイミングを制御する制御手段と、
前記２つの電極に対する前記パルス電圧の印加を開始したときの前記２つの電極間の第１の電圧値と、前記２つの電極に対する前記パルス電圧の印加を終了したときの前記２つの電極間の第２の電圧値と、の差分電圧を取得する取得手段と、
前記差分電圧と閾値を比較することでインクの有無を判定する判定手段と、を備える記録装置におけるインク残量検出方法であって、
前記パルス発生手段により、前記２つの電極に対して第１のパルス電圧を印加した後に、第２のパルス電圧を印加する工程と、
前記判定手段により、前記第２のパルス電圧を印加したときの前記差分電圧に基づいてインクの有無を判定する工程と、
を有ることを特徴とするインク残量検出方法。 A recording head for ejecting ink;
At least two electrodes;
Pulse generating means for applying a pulse voltage to the two electrodes;
Control means for controlling the timing of applying the pulse voltage;
A first voltage value between the two electrodes when the application of the pulse voltage to the two electrodes is started, and a first voltage value between the two electrodes when the application of the pulse voltage to the two electrodes is finished. Acquisition means for acquiring a differential voltage between the voltage value of 2 and
A determination means for determining the presence or absence of ink by comparing the difference voltage with a threshold value, and a remaining ink amount detection method in a recording apparatus comprising:
Applying a second pulse voltage after applying a first pulse voltage to the two electrodes by the pulse generating means;
A step of determining the presence or absence of ink based on the differential voltage when the second pulse voltage is applied by the determination means;
A method for detecting the remaining amount of ink.
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US4380772A (en) * 1981-12-24 1983-04-19 Ncr Corporation Low ink indication for ink jet print head
JPH09273956A (en) * 1996-04-03 1997-10-21 Brother Ind Ltd Ink residue detector and ink jet printer
JPH10226091A (en) * 1997-02-14 1998-08-25 Canon Inc Ink jet recording apparatus
JP2000263803A (en) * 1999-03-15 2000-09-26 Canon Inc Method and apparatus for detecting residual quantity of ink
JP2008055775A (en) * 2006-08-31 2008-03-13 Fujifilm Corp Inkjet recording device
JP2007190919A (en) * 2007-02-13 2007-08-02 Sony Corp Liquid detection device and liquid amount detection device
JP2014008742A (en) * 2012-07-02 2014-01-20 Canon Inc Inkjet recording apparatus and remaining ink amount presence/absence detection method

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