JP2022010588A - 液体吐出ヘッド - Google Patents
液体吐出ヘッド Download PDFInfo
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- JP2022010588A JP2022010588A JP2020111246A JP2020111246A JP2022010588A JP 2022010588 A JP2022010588 A JP 2022010588A JP 2020111246 A JP2020111246 A JP 2020111246A JP 2020111246 A JP2020111246 A JP 2020111246A JP 2022010588 A JP2022010588 A JP 2022010588A
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- 239000007788 liquid Substances 0.000 title claims description 37
- 238000004891 communication Methods 0.000 claims description 12
- 239000000976 ink Substances 0.000 description 36
- 239000012530 fluid Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 2
- 230000007723 transport mechanism Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters 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
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
-
- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters 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
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/18—Ink recirculation systems
-
- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters 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
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
-
- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters 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
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/145—Arrangement thereof
- B41J2/155—Arrangement thereof for line printing
-
- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters 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
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2002/14306—Flow passage between manifold and chamber
-
- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters 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
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14419—Manifold
-
- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters 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
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14459—Matrix arrangement of the pressure chambers
-
- 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
- B41J2202/08—Embodiments of or processes related to ink-jet heads dealing with thermal variations, e.g. cooling
-
- 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
- B41J2202/11—Embodiments of or processes related to ink-jet heads characterised by specific geometrical characteristics
-
- 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
- B41J2202/12—Embodiments of or processes related to ink-jet heads with ink circulating through the whole print head
-
- 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
- B41J2202/21—Line printing
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Ink Jet (AREA)
Abstract
Description
先ず、図1を参照し、本発明の第1実施形態に係るヘッド1を備えたプリンタ100の全体構成について説明する。
続いて、図5を参照し、本発明の第2実施形態に係るヘッド201について説明する。
続いて、図6を参照し、本発明の第3実施形態に係るヘッド301について説明する。
続いて、図7を参照し、本発明の第4実施形態に係るヘッド401について説明する。
続いて、図8を参照し、本発明の第5実施形態に係るヘッド501について説明する。
続いて、図9を参照し、本発明の第6実施形態に係るヘッド601について説明する。
以上、本発明の好適な実施形態について説明したが、本発明は上述の実施形態に限られるものではなく、特許請求の範囲に記載した限りにおいて様々な設計変更が可能なものである。
20;320;520 個別流路
20A 第1個別流路列
20B 第2個別流路列
20C 第3個別流路列
21 ノズル
22 圧力室
23 接続流路
24 流入流路(第1連通流路)
24a 一端
24b 他端
25;25x,25y 流出流路(第2連通流路)
25a 一端
25b 他端
31 供給流路(第1共通流路)
32A,32B 帰還流路(第2共通流路)
431,431’ 供給流路(第1共通流路)
432,432’ 帰還流路(第2共通流路)
Claims (14)
- 複数の個別流路と、
前記複数の個別流路に連通する第1共通流路と、
前記複数の個別流路に連通する第2共通流路と、を備え、
前記複数の個別流路は、それぞれ、圧力室と、前記圧力室から第1方向に離隔したノズルと、前記圧力室と前記ノズルとを接続する接続流路と、前記第1共通流路に連通する一端と前記圧力室に連通する他端とを有する第1連通流路と、前記接続流路に連通する一端と前記第2共通流路に連通する他端とを有する第2連通流路と、を含み、
前記複数の個別流路は、前記第1方向と直交する第2方向に配列され、第1個別流路列と、前記第1方向及び前記第2方向と交差する第3方向に前記第1個別流路列と並ぶ第2個別流路列と、を構成し、
前記第1共通流路は、前記第1個別流路列を構成する前記複数の個別流路、及び、前記第2個別流路列を構成する前記複数の個別流路、の双方に連通し、
前記第1個別流路列の前記圧力室、及び、前記第2個別流路列の前記圧力室は、前記第2共通流路と前記第1方向に重ならず、かつ、前記第2方向に互いに重ならないことを特徴とする、液体吐出ヘッド。 - 前記第1個別流路列の前記圧力室、及び、前記第2個別流路列の前記圧力室は、前記第3方向に互いに離隔していることを特徴とする、請求項1に記載の液体吐出ヘッド。
- 前記第1個別流路列の前記圧力室、及び、前記第2個別流路列の前記圧力室は、前記第3方向に互いに重ならないことを特徴とする、請求項1又は2に記載の液体吐出ヘッド。
- 前記第1個別流路列の前記圧力室、及び、前記第2個別流路列の前記圧力室は、前記第2方向に互いに離隔していることを特徴とする、請求項3に記載の液体吐出ヘッド。
- 前記第1個別流路列の前記圧力室、及び、前記第2個別流路列の前記圧力室は、前記第1共通流路と前記第1方向に重なることを特徴とする、請求項1~4のいずれか1項に記載の液体吐出ヘッド。
- 前記第1個別流路列の前記圧力室は、前記第1共通流路の前記第3方向の中心に対し、前記第3方向の一方に配置され、
前記第2個別流路列の前記圧力室は、前記中心に対し、前記第3方向の他方に配置され、
前記第1個別流路列の前記第1連通流路の前記一端は、前記第1共通流路の前記第3方向の他方の端部に位置し、
前記第2個別流路列の前記第1連通流路の前記一端は、前記第1共通流路の前記第3方向の一方の端部に位置することを特徴とする、請求項1~5のいずれか1項に記載の液体吐出ヘッド。 - 前記第1連通流路の前記一端は、前記第1共通流路の前記第3方向の中央部に位置することを特徴とする、請求項1~5のいずれか1項に記載の液体吐出ヘッド。
- 前記第2共通流路の前記第1方向の長さは、前記第1共通流路の前記第1方向の長さよりも長いことを特徴とする、請求項1~7のいずれか1項に記載の液体吐出ヘッド。
- 前記第2共通流路は、前記圧力室と前記第3方向に重なることを特徴とする、請求項8に記載の液体吐出ヘッド。
- 前記複数の個別流路は、前記第3方向において前記第1個別流路列との間に前記第2個別流路列を挟む、第3個別流路列をさらに構成し、
前記第1個別流路列の前記圧力室と前記第2個別流路列の前記圧力室との前記第3方向の間隔と、前記第2個別流路列の前記圧力室と前記第3個別流路列の前記圧力室との前記第3方向の間隔とが、互いに同じであることを特徴とする、請求項1~9のいずれか1項に記載の液体吐出ヘッド。 - 前記第1個別流路列、前記第2個別流路列及び前記第3個別流路列を構成する複数の前記圧力室が、前記第1方向と直交する面において等間隔に配置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。
- 前記第3個別流路列を構成する前記複数の個別流路に連通する、別の前記第1共通流路をさらに備え、
前記第3方向において前記第1共通流路と前記別の第1共通流路との間に配置された前記第2共通流路は、前記第2個別流路列を構成する前記複数の個別流路、及び、前記第3個別流路列を構成する前記複数の個別流路、の双方に連通し、かつ、前記第1共通流路及び前記別の第1共通流路に比べて前記第3方向の長さが短いことを特徴とする、請求項10又は11に記載の液体吐出ヘッド。 - 前記複数の個別流路の各々が、2つの前記第2連通流路を含むことを特徴とする、請求項1~12のいずれか1項に記載の液体吐出ヘッド。
- 前記圧力室は、前記第1方向と直交しかつ前記第2方向及び前記第3方向と交差する方向に延びていることを特徴とする、請求項1~13のいずれか1項に記載の液体吐出ヘッド。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020111246A JP7491088B2 (ja) | 2020-06-29 | 液体吐出ヘッド | |
US17/345,014 US11660864B2 (en) | 2020-06-29 | 2021-06-11 | Liquid discharging head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020111246A JP7491088B2 (ja) | 2020-06-29 | 液体吐出ヘッド |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022010588A true JP2022010588A (ja) | 2022-01-17 |
JP7491088B2 JP7491088B2 (ja) | 2024-05-28 |
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US11660864B2 (en) | 2023-05-30 |
US20210402774A1 (en) | 2021-12-30 |
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