JP2005096205A5 - - Google Patents

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Publication number
JP2005096205A5
JP2005096205A5 JP2003332042A JP2003332042A JP2005096205A5 JP 2005096205 A5 JP2005096205 A5 JP 2005096205A5 JP 2003332042 A JP2003332042 A JP 2003332042A JP 2003332042 A JP2003332042 A JP 2003332042A JP 2005096205 A5 JP2005096205 A5 JP 2005096205A5
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JP
Japan
Prior art keywords
discharge port
electrode
discharge
substrate
inkjet head
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JP2003332042A
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Japanese (ja)
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JP2005096205A (en
JP4365178B2 (en
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Priority to JP2003332042A priority Critical patent/JP4365178B2/en
Priority claimed from JP2003332042A external-priority patent/JP4365178B2/en
Publication of JP2005096205A publication Critical patent/JP2005096205A/en
Publication of JP2005096205A5 publication Critical patent/JP2005096205A5/ja
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Publication of JP4365178B2 publication Critical patent/JP4365178B2/en
Anticipated expiration legal-status Critical
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Claims (6)

帯電した微粒子を含むインクを静電力を利用して吐出させて記録媒体に画像を記録する静電式のインクジェットヘッドであって、
インクを吐出する吐出口を有する吐出口基板と、前記吐出口に対応して吐出口基板に形成される、前記インクに静電力を作用させて前記吐出口から吐出させるための吐出電極と、前記吐出口基板と対面して所定の間隔離間して配置されるヘッド基板とを有し、
かつ、前記吐出電極は、前記吐出口基板とヘッド基板との間隙、ならびに、前記吐出口で形成されるインク流路に、少なくとも一部を露出していることを特徴とするインクジェットヘッド。 An electrostatic inkjet head that records an image on a recording medium by discharging ink containing charged fine particles using electrostatic force,
A discharge port substrate having a discharge port for discharging ink, a discharge electrode formed on the discharge port substrate corresponding to the discharge port, for discharging the ink from the discharge port by applying an electrostatic force; A head substrate disposed opposite to the discharge port substrate at a predetermined interval;
The ink jet head is characterized in that at least a part of the ejection electrode is exposed in a gap between the ejection port substrate and the head substrate and an ink flow path formed by the ejection port. 前記吐出電極は、前記吐出口基板とヘッド基板との間隙において、前記インク流路に少なくとも一部を露出する請求項１に記載のインクジェットヘッド。   The inkjet head according to claim 1, wherein at least a part of the ejection electrode is exposed to the ink flow path in a gap between the ejection port substrate and the head substrate. 前記吐出電極は、前記吐出口において、前記インク流路に少なくとも一部を露出する請求項１または２に記載のインクジェットヘッド。   The inkjet head according to claim 1, wherein at least a part of the ejection electrode is exposed to the ink flow path at the ejection port. 前記吐出電極とは異なる層の前記吐出電極間に、絶縁層に覆われたガード電極を有する請求項１〜３のいずれかに記載のインクジェットヘッド。   The inkjet head according to claim 1, further comprising a guard electrode covered with an insulating layer between the discharge electrodes of a layer different from the discharge electrodes. 前記ガード電極は、吐出口基板の平面で見た際において、前記吐出電極の吐出口に近接する側の端部よりも前記吐出口から離間しており、かつ、前記吐出電極の吐出口から離れた側の端部よりも、前記吐出口に近接する領域を有する請求項４に記載のインクジェットヘッド。 The guard electrode is farther from the discharge port than the end of the discharge electrode close to the discharge port when viewed in the plane of the discharge port substrate, and is separated from the discharge port of the discharge electrode. The inkjet head according to claim 4 , further comprising a region closer to the discharge port than an end portion on the other side. 請求項１〜５のいずれかに記載のインクジェットヘッドと、
前記インクジェットヘッドと記録媒体を相対的に移動させる手段と、
前記インクジェットヘッドの吐出電極と前記記録媒体の間に所定のバイアス電圧を印加する手段と、
前記インクジェットヘッドのガード電極に所定のガード電圧を印加する手段と、
前記記録媒体に記録すべき前記画像に応じて、前記インクジェットヘッドの吐出電極に所定の吐出電圧を印加する手段とを有することを特徴とするインクジェット記録装置。 An ink jet head according to any one of claims 1 to 5;
Means for relatively moving the inkjet head and the recording medium;
Means for applying a predetermined bias voltage between the ejection electrode of the inkjet head and the recording medium;
Means for applying a predetermined guard voltage to a guard electrode of the inkjet head;
An ink jet recording apparatus comprising: means for applying a predetermined discharge voltage to the discharge electrode of the ink jet head according to the image to be recorded on the recording medium.
JP2003332042A 2003-09-24 2003-09-24 Inkjet head and inkjet recording apparatus Expired - Fee Related JP4365178B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003332042A JP4365178B2 (en) 2003-09-24 2003-09-24 Inkjet head and inkjet recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003332042A JP4365178B2 (en) 2003-09-24 2003-09-24 Inkjet head and inkjet recording apparatus

Publications (3)

Publication Number Publication Date
JP2005096205A JP2005096205A (en) 2005-04-14
JP2005096205A5 true JP2005096205A5 (en) 2006-06-29
JP4365178B2 JP4365178B2 (en) 2009-11-18

Family

ID=34460512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003332042A Expired - Fee Related JP4365178B2 (en) 2003-09-24 2003-09-24 Inkjet head and inkjet recording apparatus

Country Status (1)

Country Link
JP (1) JP4365178B2 (en)

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