JPS57144767A - Pressure pulse type ink jet recording device - Google Patents

Pressure pulse type ink jet recording device

Info

Publication number
JPS57144767A
JPS57144767A JP2982681A JP2982681A JPS57144767A JP S57144767 A JPS57144767 A JP S57144767A JP 2982681 A JP2982681 A JP 2982681A JP 2982681 A JP2982681 A JP 2982681A JP S57144767 A JPS57144767 A JP S57144767A
Authority
JP
Japan
Prior art keywords
ink
piezoelectric element
pulses
pressure
discharged
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
JP2982681A
Other languages
Japanese (ja)
Inventor
Yasuo Hosaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2982681A priority Critical patent/JPS57144767A/en
Publication of JPS57144767A publication Critical patent/JPS57144767A/en
Pending legal-status Critical Current

Links

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
    • B41J2/055—Devices for absorbing or preventing back-pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N2035/1027—General features of the devices
    • G01N2035/1034—Transferring microquantities of liquid
    • G01N2035/1041—Ink-jet like dispensers

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

PURPOSE:To prevent ink from flowing backward and to improve the feed of the ink after it is discharged by providing not only the 1st pressure generating mechanism for discharging the ink but also the 2nd pressure generating mechanism for prevention against backward flow. CONSTITUTION:A discharging piezoelectric element 31 is fixed to a place equivalent to a pressure chamber 26 on a base and, in addition, piezoelectric element 32 for prevention against backward flow is provided at a place equivalent to an ink feeding chamber 28. At time t1, pulses are impressed to the piezoelectric element 32 and the volume in the ink supply chamber reduces but ink is not discharged. At the moment t2 when the pressure by the piezoelectric element 32 exerts an influence on pressure chamber 26, pulses are impressed on the discharging piezoelectric element 31 and ink is discharged. At time t3 pulses of piezoelectric element 31 are reduced to 0. The groove of nozzle 25 is narrower than that of connecting way 27 so that the ink flows from an inke feeding chamber 28. At time t4, pulses of the piezoelectric element 32 gradually are reduced to 0 and the ink is introduced from an ink inlet port 30 to the pressure chamber 26.
JP2982681A 1981-03-04 1981-03-04 Pressure pulse type ink jet recording device Pending JPS57144767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2982681A JPS57144767A (en) 1981-03-04 1981-03-04 Pressure pulse type ink jet recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2982681A JPS57144767A (en) 1981-03-04 1981-03-04 Pressure pulse type ink jet recording device

Publications (1)

Publication Number Publication Date
JPS57144767A true JPS57144767A (en) 1982-09-07

Family

ID=12286819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2982681A Pending JPS57144767A (en) 1981-03-04 1981-03-04 Pressure pulse type ink jet recording device

Country Status (1)

Country Link
JP (1) JPS57144767A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000033961A1 (en) * 1998-12-10 2000-06-15 Aurora Biosciences Corporation Fluid dispenser and dispensing methods

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000033961A1 (en) * 1998-12-10 2000-06-15 Aurora Biosciences Corporation Fluid dispenser and dispensing methods
US6296811B1 (en) 1998-12-10 2001-10-02 Aurora Biosciences Corporation Fluid dispenser and dispensing methods
JP2002531259A (en) * 1998-12-10 2002-09-24 オーロラ バイオサイエンシズ コーポレーション Fluid dispensing device and dispensing method
EP1316361A2 (en) * 1998-12-10 2003-06-04 Vertex Pharmaceuticals (San Diego) LLC Fluid dispenser and dispensing methods
EP1316361A3 (en) * 1998-12-10 2004-03-31 Vertex Pharmaceuticals (San Diego) LLC Fluid dispenser and dispensing methods

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