JP2019077124A - 液体吐出ヘッド、及び、液体吐出装置 - Google Patents
液体吐出ヘッド、及び、液体吐出装置 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
Description
前記液体吐出ヘッドの前記媒体と対向する部位は、前記複数のノズルを含む第1の領域と、当該第1の領域と隣り合う第2の領域と、を有し、
前記第2の領域は、液体の移動を阻害する第3の領域を有することを特徴とする。
前記複数のノズル群領域のうち、明度が最も高い前記液体に対応する前記ノズル群を含む前記ノズル群領域と、明度が最も低い前記液体に対応する前記ノズル群を含む前記ノズル群領域とは、前記ノズルの並設方向及び当該ノズルの並設方向に直交する方向において隣り合わない構成を採用することが望ましい。
前記ノズルプレートを囲む外周部材と、
を備え、
前記第2の領域は、前記ノズルプレートと前記外周部材との隙間に充填された充填材で形成され、
前記第3の領域は、前記ノズルプレートの外側から当該ノズルプレートの前記第1の領域へ向けて延出された前記充填材の一部で形成された構成を採用することができる。
前記ノズルプレートを囲む外周部材と、
を備え、
前記第3の領域は、前記ノズルプレートの外側から当該ノズルプレートの前記第1の領域へ向けて延出された前記外周部材の一部で形成された構成を採用することができる。
前記接着剤は、前記外周部材の一部と前記第1の領域との間の接合領域から当該接合領域の外側まで延在している構成を採用することがより望ましい。
前記ノズルプレートのうち前記第3の領域に対応する領域には、前記撥液膜が形成されていない構成を採用することが望ましい。
前記液体吐出ヘッドの前記媒体と対向する部位を払拭する払拭機構と、
を備えることを特徴とする。
本実施形態におけるヘッドユニット20は、ノズルプレート24、連通基板25、アクチュエーターユニット26、コンプライアンス基板27、ケース28等の複数の構成部材が積層されて接着剤等によって接合されて構成されている。なお、以下においては、記録ヘッド2の各構成部材の積層方向を、適宜上下方向として説明する。
Claims (13)
- 媒体に向けて液体を吐出する複数のノズルが並設された液体吐出ヘッドであって、
前記液体吐出ヘッドの前記媒体と対向する部位は、前記複数のノズルを含む第1の領域と、当該第1の領域と隣り合う第2の領域と、を有し、
前記第2の領域は、液体の移動を阻害する第3の領域を有することを特徴とする液体吐出ヘッド。 - 前記第1の領域は、複数の異なる液体のそれぞれに対応する複数のノズル群を有し、前記第3の領域により各前記ノズル群を含む複数のノズル群領域に区分されることを特徴とする請求項1に記載の液体吐出ヘッド。
- 各前記ノズル群は、前記複数の異なる液体のうち明度の異なる前記液体がそれぞれ割り当てられ、
前記複数のノズル群領域のうち、明度が最も高い前記液体に対応する前記ノズル群を含む前記ノズル群領域と、明度が最も低い前記液体に対応する前記ノズル群を含む前記ノズル群領域とは、前記ノズルの並設方向及び当該ノズルの並設方向に直交する方向において隣り合わないことを特徴とする請求項2に記載の液体吐出ヘッド。 - 隣り合う前記ノズル群領域の間に前記第3の領域が形成されたことを特徴とする請求項2又は請求項3に記載の液体吐出ヘッド。
- 前記第3の領域は、前記第1の領域よりも前記媒体側に突出していることを特徴とする請求項1から請求項4の何れか一項に記載の液体吐出ヘッド。
- 前記第3の領域は、撥液性を有することを特徴とする請求項1から請求項5の何れか一項に記載の液体吐出ヘッド。
- 前記第3の領域の撥液性は、前記第2の領域の撥液性より高く、且つ、前記第1の領域の撥液性より低いことを特徴とする請求項6に記載の液体吐出ヘッド。
- 前記複数のノズルが並設されたノズルプレートと、
前記ノズルプレートを囲む外周部材と、
を備え、
前記第2の領域は、前記ノズルプレートと前記外周部材との隙間に充填された充填材で形成され、
前記第3の領域は、前記ノズルプレートの外側から当該ノズルプレートの前記第1の領域へ向けて延出された前記充填材の一部で形成されたことを特徴とする請求項1から請求項7の何れか一項に記載の液体吐出ヘッド。 - 前記複数のノズルが並設されたノズルプレートと、
前記ノズルプレートを囲む外周部材と、
を備え、
前記第3の領域は、前記ノズルプレートの外側から当該ノズルプレートの前記第1の領域へ向けて延出された前記外周部材の一部で形成されたことを特徴とする請求項1から請求項7の何れか一項に記載の液体吐出ヘッド。 - 前記外周部材の一部は、前記第1の領域に接着剤により固定され、
前記接着剤は、前記外周部材の一部と前記第1の領域との間の接合領域から当該接合領域の外側まで延在していることを特徴とする請求項9に記載の液体吐出ヘッド。 - 前記外周部材の一部の表面は、粗面加工が施されていることを特徴とする請求項10に記載の液体吐出ヘッド。
- 前記ノズルプレートのうち前記第1の領域に対応する領域には、撥液膜が形成され、
前記ノズルプレートのうち前記第3の領域に対応する領域には、前記撥液膜が形成されていないことを特徴とする請求項10又は請求項11に記載の液体吐出ヘッド。 - 請求項1から請求項12の何れか一項に記載の液体吐出ヘッドと、
前記液体吐出ヘッドの前記媒体と対向する部位を払拭する払拭機構と、
を備えることを特徴とする液体吐出装置。
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