JP2020116792A - 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
- Publication number
- JP2020116792A JP2020116792A JP2019008498A JP2019008498A JP2020116792A JP 2020116792 A JP2020116792 A JP 2020116792A JP 2019008498 A JP2019008498 A JP 2019008498A JP 2019008498 A JP2019008498 A JP 2019008498A JP 2020116792 A JP2020116792 A JP 2020116792A
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- pressure chamber
- ink
- liquid
- film
- electrode
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Classifications
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- B41J2/04581—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on piezoelectric elements
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- B41J2002/14491—Electrical connection
-
- 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
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/15—Moving nozzle or nozzle plate
-
- 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
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/20—Modules
-
- 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
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/22—Manufacturing print heads
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
第1電極103は、Pt(白金)/Ti(チタン)薄膜で形成される。薄膜の成膜はスパッタリング法を用い、膜厚0.1μmとした。第1電極103の他の電極材料として、Ni(ニッケル)、Cu(銅)、Al(アルミニウム)、Ti(チタン)、W(タンタル)、Mo(モリブデン)、Au(金)などを利用することも可能である。他の成膜法として、蒸着、鍍金を用いることも可能である。第1電極103の望ましい膜厚は0.01〜1μmである。
圧力室201の中心位置と、対応するノズル101の中心位置がずれた構成のインクジェットヘッド31でも、圧力室201内に発生する圧力によって、ノズル101からインクを吐出させることは可能である。1つの圧力室201の円形断面の中心と、対応するノズル101の中心が一致しているインクジェットヘッド31は、一致していないインクジェットヘッド31に比べインクの吐出方向を均一化できる。
次に、セパレートプレート300と流路ベース400をエポキシ樹脂で接着した。セパレートプレート300と流路ベース400を接着後、圧力室ベース200にセパレートプレート300をエポキシ樹脂で接着した。
以下、第2実施形態にかかるインクジェットヘッド131の構成ついて、図8を参照して説明する。なお、第2実施形態にかかるが、その他の構成については上記第1実施形態にかかるインクジェットヘッド31と同様であるため、説明を省略する。
また、上記実施形態においては、液体吐出装置はインクジェット装置に用いられる例を示したが、これに限られるものではない。例えば3Dプリンタ、産業用の製造機械、医療用途にも用いることが可能である。
Claims (5)
- 液体を吐出するノズルに連通する圧力室を駆動する駆動素子と、前記駆動素子に接続される接続部と、を有する駆動基板と、
前記駆動基板の前記接続部の吐出側に配される封止体と、
前記封止体を挟んで前記接続部の吐出側に対向配置されるマスクプレートと、
を備える、液体吐出ヘッド。 - 前記駆動素子は、圧電体膜と、前記圧電体膜に積層されるとともに配線を介して前記接続部に電気的に接続される電極部と、を備え、
前記駆動基板は、前記駆動素子が形成される振動板と、前記駆動素子の吐出側を覆う保護層と、を備え、
前記接続部は、前記駆動素子の前記電極部に電気的に接続される端子部であり、
前記接続部と前記マスクプレートとの間において、前記接続部に配線基板が接続され、
前記マスクプレートの吐出側の表面が前記封止体よりも前記吐出側に位置する、請求項1に記載の液体吐出ヘッド。 - 前記駆動基板は、前記ノズルから前記封止体に至る領域に配され前記駆動素子の吐出側を覆う撥インク膜を備える、請求項1または請求項2に記載の液体吐出ヘッド。
- 前記駆動基板の前記吐出側とは反対側に配され、前記圧力室を有する圧力室ベースと、
前記圧力室ベースの前記吐出側とは反対側に配され、前記圧力室に連通する共通室を有する流路ベースと、を備え、
前記マスクプレートは、前記接続部の前記吐出側に対向配置されるトッププレート部と、前記駆動基板、前記圧力室ベース、及び前記流路ベースが積層された構造体の外周に配されるサイドプレート部と、を一体に備える、請求項1乃至請求項3のいずれかに記載の液体吐出ヘッド。 - 液体を吐出するノズルに連通する圧力室を駆動する駆動素子と、前記駆動素子に接続される接続部と、を有する駆動基板と、
前記駆動基板の前記接続部の吐出側に配される封止体と、
前記封止体を挟んで前記接続部の吐出側に対向配置されるマスクプレートと、
を備える、液体吐出ヘッドと、
前記液体吐出ヘッドへ接続され、液体を収容する液体タンクと、
を備える、液体吐出装置。
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JP2019008498A JP2020116792A (ja) | 2019-01-22 | 2019-01-22 | 液体吐出ヘッド、及び液体吐出装置 |
US16/702,351 US11135848B2 (en) | 2019-01-22 | 2019-12-03 | Liquid ejecting head and liquid ejecting apparatus |
CN202010026597.2A CN111452506B (zh) | 2019-01-22 | 2020-01-10 | 液体喷头以及液体喷出装置 |
EP20152598.7A EP3686015B1 (en) | 2019-01-22 | 2020-01-20 | Liquid ejecting head and liquid ejecting apparatus |
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