JPH0230543A - Ink jet head - Google Patents

Ink jet head

Info

Publication number
JPH0230543A
JPH0230543A JP18240188A JP18240188A JPH0230543A JP H0230543 A JPH0230543 A JP H0230543A JP 18240188 A JP18240188 A JP 18240188A JP 18240188 A JP18240188 A JP 18240188A JP H0230543 A JPH0230543 A JP H0230543A
Authority
JP
Japan
Prior art keywords
heat generation
ink
pressure generation
thermal
generated
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.)
Pending
Application number
JP18240188A
Inventor
Tsuyoshi Kitahara
Haruhiko Koto
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP18240188A priority Critical patent/JPH0230543A/en
Publication of JPH0230543A publication Critical patent/JPH0230543A/en
Application status is Pending legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • B41J2/14427Structure of ink jet print heads with thermal bend detached actuators

Abstract

PURPOSE: To obtain an ink jet head favorable in production yield, drivable at a low voltage, and stable in ink drip discharge characteristics by applying a selective electric signal to a heating means forming a pressure generation means.
CONSTITUTION: With the application of electric signals to electric signal lines 25, 24, an electric current flows in a direction shown by an arrow 60, and a heat generation layer 26 heats to increase in temperature rapidly. The thermal energy generated in the heat generation layer 26 is conducted to an adjacent recording ink 31 and a vibration plate 23. Here, in consideration of an unconstant thermal conduction especially in the direction of the thickness of the vibration plate 23, in a pressure generation member 40, which has been initially in a uniform temperature state, a temperature gradient occurs inside by the heat generation of the heat generation layer 26 and a thermal stress attributed to the thermal expansibilities of the components is generated. A bending moment is generated in the pressure generation member 40 by this phenomenon. The pressure generation member 40 is deformed and displaced toward a nozzle plate 21 because it is fixed at one end, thereby making the recording ink 31 in the vicinity of a nozzle opening 20 fly out of the nozzle opening 20 as an ink drip.
COPYRIGHT: (C)1990,JPO&Japio
JP18240188A 1988-07-21 1988-07-21 Ink jet head Pending JPH0230543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18240188A JPH0230543A (en) 1988-07-21 1988-07-21 Ink jet head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18240188A JPH0230543A (en) 1988-07-21 1988-07-21 Ink jet head

Publications (1)

Publication Number Publication Date
JPH0230543A true JPH0230543A (en) 1990-01-31

Family

ID=16117665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18240188A Pending JPH0230543A (en) 1988-07-21 1988-07-21 Ink jet head

Country Status (1)

Country Link
JP (1) JPH0230543A (en)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0713774A2 (en) 1994-11-24 1996-05-29 Sharp Kabushiki Kaisha Ink jet head for high speed printing and method for it's fabrication
EP0716925A2 (en) 1994-12-14 1996-06-19 Sharp Kabushiki Kaisha Ink jet head and method for fabricating the same
EP0718102A3 (en) * 1994-12-20 1997-04-02 Sharp Kk Compact ink jet head with deformable structure for ink discharge with great force
US5666141A (en) * 1993-07-13 1997-09-09 Sharp Kabushiki Kaisha Ink jet head and a method of manufacturing thereof
US5684519A (en) * 1994-04-19 1997-11-04 Sharp Kabushiki Kaisha Ink jet head with buckling structure body
US5719604A (en) * 1994-09-27 1998-02-17 Sharp Kabushiki Kaisha Diaphragm type ink jet head having a high degree of integration and a high ink discharge efficiency
US5988799A (en) * 1995-09-25 1999-11-23 Sharp Kabushiki Kaisha Ink-jet head having ink chamber and non-ink chamber divided by structural element subjected to freckling deformation
US6280643B1 (en) * 1997-07-15 2001-08-28 Silverbrook Research Pty Ltd Method of manufacture of a planar thermoelastic bend actuator ink jet printer
US6315399B1 (en) * 1999-06-30 2001-11-13 Silverbrook Research Pty Ltd Micro-mechanical device comprising a liquid chamber
US6328431B1 (en) * 1999-06-30 2001-12-11 Silverbrook Research Pty Ltd Seal in a micro electro-mechanical device
US6428133B1 (en) * 2000-05-23 2002-08-06 Silverbrook Research Pty Ltd. Ink jet printhead having a moving nozzle with an externally arranged actuator
US6435666B1 (en) 2001-10-12 2002-08-20 Eastman Kodak Company Thermal actuator drop-on-demand apparatus and method with reduced energy
US6502306B2 (en) 2000-05-23 2003-01-07 Silverbrook Research Pty Ltd Method of fabricating a micro-electromechanical systems device
US6588882B2 (en) * 1997-07-15 2003-07-08 Silverbrook Research Pty Ltd Inkjet printheads
EP1329319A1 (en) * 2002-01-17 2003-07-23 Eastman Kodak Company Thermal actuator with optimized heater length
EP1334831A2 (en) 2002-02-08 2003-08-13 Eastman Kodak Company Dual actuation thermal actuator and method of operating thereof
EP1334832A2 (en) 2002-02-08 2003-08-13 Eastman Kodak Company Tri-layer thermal actuator and method of operating
US6685303B1 (en) 2002-08-14 2004-02-03 Eastman Kodak Company Thermal actuator with reduced temperature extreme and method of operating same
EP1391305A1 (en) 2002-08-23 2004-02-25 Eastman Kodak Company Tapered thermal actuator
US6698867B2 (en) 1998-10-16 2004-03-02 Silverbrook Research Pty Ltd Inkjet printhead having overlapping actuator and drive circuitry
EP1419885A2 (en) 2002-11-13 2004-05-19 Eastman Kodak Company Thermal actuator with spatial thermal pattern
US6817702B2 (en) 2002-11-13 2004-11-16 Eastman Kodak Company Tapered multi-layer thermal actuator and method of operating same
US6896346B2 (en) 2002-12-26 2005-05-24 Eastman Kodak Company Thermo-mechanical actuator drop-on-demand apparatus and method with multiple drop volumes
US6932459B2 (en) 1997-07-15 2005-08-23 Silverbrook Research Pty Ltd Ink jet printhead
US7011394B2 (en) 2003-08-28 2006-03-14 Eastman Kodak Company Liquid drop emitter with reduced surface temperature actuator
US7025443B2 (en) 2003-06-27 2006-04-11 Eastman Kodak Company Liquid drop emitter with split thermo-mechanical actuator
US7073890B2 (en) 2003-08-28 2006-07-11 Eastman Kodak Company Thermally conductive thermal actuator and liquid drop emitter using same
US7111924B2 (en) 1998-10-16 2006-09-26 Silverbrook Research Pty Ltd Inkjet printhead having thermal bend actuator heating element electrically isolated from nozzle chamber ink
US7152962B1 (en) 2000-05-24 2006-12-26 Silverbrook Research Pty Ltd Ink jet printhead having a moving nozzle with an externally arranged actuator
US7156498B2 (en) 1998-06-09 2007-01-02 Silverbrook Research Pty Ltd Inkjet nozzle that incorporates volume-reduction actuation
US7237874B2 (en) 2000-06-30 2007-07-03 Silverbrook Research Pty Ltd Inkjet printhead with grouped nozzles and a nozzle guard
US7380906B2 (en) 1998-10-16 2008-06-03 Silverbrook Research Pty Ltd Printhead
US7506969B2 (en) 1997-07-15 2009-03-24 Silverbrook Research Pty Ltd Ink jet nozzle assembly with linearly constrained actuator
US7967422B2 (en) 1998-10-16 2011-06-28 Silverbrook Research Pty Ltd Inkjet nozzle assembly having resistive element spaced apart from substrate
US8009333B2 (en) 1998-11-09 2011-08-30 Silverbrook Research Pty Ltd Print controller for a mobile telephone handset
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Cited By (155)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666141A (en) * 1993-07-13 1997-09-09 Sharp Kabushiki Kaisha Ink jet head and a method of manufacturing thereof
US5684519A (en) * 1994-04-19 1997-11-04 Sharp Kabushiki Kaisha Ink jet head with buckling structure body
US5719604A (en) * 1994-09-27 1998-02-17 Sharp Kabushiki Kaisha Diaphragm type ink jet head having a high degree of integration and a high ink discharge efficiency
EP0713774A3 (en) * 1994-11-24 1997-04-02 Sharp Kk Ink jet head for high speed printing and method for it's fabrication
EP0713774A2 (en) 1994-11-24 1996-05-29 Sharp Kabushiki Kaisha Ink jet head for high speed printing and method for it's fabrication
EP0716925A3 (en) * 1994-12-14 1997-04-16 Sharp Kk Ink jet head and method for fabricating the same
EP0716925A2 (en) 1994-12-14 1996-06-19 Sharp Kabushiki Kaisha Ink jet head and method for fabricating the same
EP0718102A3 (en) * 1994-12-20 1997-04-02 Sharp Kk Compact ink jet head with deformable structure for ink discharge with great force
US5825383A (en) * 1994-12-20 1998-10-20 Sharp Kabushiki Kaisha Ink jet head compact and allowing ink to be discharged with great force by using deformable structure
US5988799A (en) * 1995-09-25 1999-11-23 Sharp Kabushiki Kaisha Ink-jet head having ink chamber and non-ink chamber divided by structural element subjected to freckling deformation
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