JP3856145B2 - 画像形成装置 - Google Patents
画像形成装置 Download PDFInfo
- Publication number
- JP3856145B2 JP3856145B2 JP2004100906A JP2004100906A JP3856145B2 JP 3856145 B2 JP3856145 B2 JP 3856145B2 JP 2004100906 A JP2004100906 A JP 2004100906A JP 2004100906 A JP2004100906 A JP 2004100906A JP 3856145 B2 JP3856145 B2 JP 3856145B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- ejection
- ink
- liquid supply
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/0451—Control methods or devices therefor, e.g. driver circuits, control circuits for detecting failure, e.g. clogging, malfunctioning actuator
-
- 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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04581—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on 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
- B41J2/135—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
- B41J2/14—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
- B41J2002/14266—Sheet-like thin film type piezoelectric element
-
- 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
- B41J2002/14354—Sensor in each pressure 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
- B41J2002/14459—Matrix arrangement of the pressure chambers
Landscapes
- Ink Jet (AREA)
- Coating Apparatus (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Description
Claims (8)
- 複数の各ノズルにそれぞれ連通する複数の各液体供給路と、
前記液体供給路中の液体に対して圧力を付与して前記液体を前記ノズルから液滴として吐出する駆動素子と、
前記複数の液体供給路を貫いて設置された前記液体供給路内の液体の圧力を検出する前記駆動素子とは別の圧力検出手段と、
前記圧力検出手段の検出した圧力に基づいて前記液体供給路からの前記液滴の不吐出を検出する不吐出検出手段と、
を備え、前記駆動素子によって前記液体に加えられた圧力を前記圧力検出手段により検出し、前記圧力検出結果に基づいて前記不吐出検出手段により不吐出を検出することを特徴とする画像形成装置。 - 前記圧力検出手段は、圧電素子によって構成された平板状または棒状の圧力検出センサであることを特徴とする請求項1に記載の画像形成装置。
- 前記液体供給路は、前記駆動素子が配設された圧力室であることを特徴とする請求項1または2に記載の画像形成装置。
- 前記圧力室は、2次元的に配列され、かつ少なくとも1部の前記圧力室には複数の前記圧力検出手段が設置されたことを特徴とする請求項3に記載の画像形成装置。
- 前記圧力検出手段は、前記駆動素子が所定の波形で駆動された結果による前記液体の圧力を検出することを特徴とする請求項1〜4のいずれか1項に記載の画像形成装置。
- 複数の各ノズルにそれぞれ連通する複数の各液体供給路と、
前記液体供給路中の液体に対して圧力を付与して前記液体を前記ノズルから液滴として吐出する駆動素子と、
前記複数の液体供給路を貫いて設置された前記液体供給路内の液体の圧力を検出する前記駆動素子とは別の圧力検出手段と、
前記圧力検出手段による圧力検出結果を前記各液体供給路毎に取り出す前記圧力検出手段に設置された個別の信号取り出し手段と、
前記各液体供給路毎に検出された圧力検出結果に基づいて前記液体供給路毎の液滴の不吐出を検出する不吐出検出手段と、
を備え前記駆動素子によって前記液体に加えられた圧力を前記圧力検出手段により検出し前記個別の信号取り出し手段によって前記液体供給路毎に取り出した圧力検出結果に基づいて前記不吐出検出手段により前記液体供給路毎の不吐出を検出するようにしたことを特徴とする画像形成装置。 - 複数の各ノズルにそれぞれ連通する複数の各液体供給路と、
前記液体供給路中の液体に対して圧力を付与して前記液体を前記ノズルから液滴として吐出する駆動素子と、
前記駆動素子を前記各液体供給路毎に駆動するタイミングを制御する駆動制御手段と、 前記複数の液体供給路を貫いて設置された前記液体供給路内の液体の圧力を検出する前記駆動素子とは別の圧力検出手段と、
前記圧力検出結果に基づいて前記液体供給路毎の液滴の不吐出を検出する不吐出検出手段と、
を備え前記駆動制御手段により時間差を持って前記駆動素子を駆動することにより、前記駆動素子によって前記液体に加えられた圧力を前記圧力検出手段により前記液体供給路毎に取り出した圧力検出結果に基づいて前記不吐出検出手段により前記液体供給路毎の不吐出を検出するようにしたことを特徴とする画像形成装置。 - 請求項7に記載の画像形成装置であって、さらに、吐出後の前記液滴を検出するヘッド外不吐出検出手段を備えたことを特徴とする画像形成装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004100906A JP3856145B2 (ja) | 2004-03-30 | 2004-03-30 | 画像形成装置 |
US11/092,578 US7695103B2 (en) | 2004-03-30 | 2005-03-29 | Image forming apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004100906A JP3856145B2 (ja) | 2004-03-30 | 2004-03-30 | 画像形成装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005279586A JP2005279586A (ja) | 2005-10-13 |
JP3856145B2 true JP3856145B2 (ja) | 2006-12-13 |
Family
ID=35053768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004100906A Expired - Fee Related JP3856145B2 (ja) | 2004-03-30 | 2004-03-30 | 画像形成装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7695103B2 (ja) |
JP (1) | JP3856145B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4538789B2 (ja) * | 2004-07-07 | 2010-09-08 | 富士フイルム株式会社 | 液吐出装置及び吐出異常検出方法 |
US7438395B2 (en) * | 2004-09-24 | 2008-10-21 | Brother Kogyo Kabushiki Kaisha | Liquid-jetting apparatus and method for producing the same |
JP4839274B2 (ja) * | 2007-07-13 | 2011-12-21 | 東芝テック株式会社 | インクジェットヘッド、インクジェット記録装置 |
CN102131644B (zh) * | 2008-08-27 | 2014-06-11 | 奥西-技术有限公司 | 用于检测喷墨打印头流体室操作状态的方法 |
EP2712342B1 (en) * | 2011-10-24 | 2019-04-03 | Hewlett-Packard Development Company, L.P. | Inkjet printhead device, fluid ejection device, and method thereof |
JP6049321B2 (ja) * | 2012-06-22 | 2016-12-21 | キヤノン株式会社 | 液体吐出ヘッドの製造方法 |
JP6208771B2 (ja) | 2013-01-23 | 2017-10-04 | ヒューレット−パッカード デベロップメント カンパニー エル.ピー.Hewlett‐Packard Development Company, L.P. | プリントヘッドのテスト |
US9340048B2 (en) * | 2013-08-21 | 2016-05-17 | Palo Alto Research Center Incorporated | Inkjet print head health detection |
JP6307894B2 (ja) * | 2014-01-23 | 2018-04-11 | セイコーエプソン株式会社 | 液体吐出装置、および液体吐出状態検出方法 |
US9457560B2 (en) * | 2014-09-24 | 2016-10-04 | Xerox Corporation | Method of sensing degradation of piezoelectric actuators |
WO2018056995A1 (en) | 2016-09-23 | 2018-03-29 | Hewlett-Packard Development Company, L.P. | Fluid ejection device and particle detector |
JP2021069993A (ja) * | 2019-10-31 | 2021-05-06 | キヤノン株式会社 | ウルトラファインバブル生成装置およびその制御方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS592620B2 (ja) | 1979-03-07 | 1984-01-19 | シャープ株式会社 | インク噴出装置 |
JPS63141750A (ja) | 1986-12-03 | 1988-06-14 | Seiko Epson Corp | インクジエツト記録ヘツドの気泡検出装置 |
JPH0429851A (ja) | 1990-05-25 | 1992-01-31 | Hitachi Koki Co Ltd | インクジェット記録装置 |
US5757392A (en) * | 1992-09-11 | 1998-05-26 | Brother Kogyo Kabushiki Kaisha | Piezoelectric type liquid droplet ejecting device which compensates for residual pressure fluctuations |
US5734391A (en) * | 1993-12-28 | 1998-03-31 | Canon Kabushiki Kaisha | Printing system |
DE9418469U1 (de) * | 1994-11-18 | 1995-01-12 | Skf Gmbh, 97421 Schweinfurt | Drehzahl-Erfassungsanordnung mit einem stabförmigen Sensor |
EP0933216A3 (en) * | 1998-02-03 | 2000-07-19 | Fuji Photo Film Co., Ltd. | Apparatus for restoring ink jet recording head |
JPH11286124A (ja) | 1998-02-03 | 1999-10-19 | Fuji Photo Film Co Ltd | インクジェットヘッドのインク不吐出回復装置 |
JPH11309874A (ja) | 1998-04-28 | 1999-11-09 | Mitsubishi Electric Corp | 液滴吐出装置の検査方法 |
JPH11334102A (ja) * | 1998-05-25 | 1999-12-07 | Mitsubishi Electric Corp | インクジェット式プリンタ、気泡検出回路及び気泡検出方法 |
US6375299B1 (en) * | 1998-11-02 | 2002-04-23 | Encad, Inc. | Faulty ink ejector detection in an ink jet printer |
US7249818B1 (en) * | 1999-10-12 | 2007-07-31 | Hewlett-Packard Development Company, L.P. | Print head apparatus with malfunction detector |
-
2004
- 2004-03-30 JP JP2004100906A patent/JP3856145B2/ja not_active Expired - Fee Related
-
2005
- 2005-03-29 US US11/092,578 patent/US7695103B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2005279586A (ja) | 2005-10-13 |
US7695103B2 (en) | 2010-04-13 |
US20050219286A1 (en) | 2005-10-06 |
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