JPS645853A - Ink-jet recording apparatus - Google Patents

Ink-jet recording apparatus

Info

Publication number
JPS645853A
JPS645853A JP16151387A JP16151387A JPS645853A JP S645853 A JPS645853 A JP S645853A JP 16151387 A JP16151387 A JP 16151387A JP 16151387 A JP16151387 A JP 16151387A JP S645853 A JPS645853 A JP S645853A
Authority
JP
Japan
Prior art keywords
ink
chamber
passage
pressure chamber
notch
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
JP16151387A
Other languages
Japanese (ja)
Inventor
Tetsuya Kobayashi
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP16151387A priority Critical patent/JPS645853A/en
Publication of JPS645853A publication Critical patent/JPS645853A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, 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
    • B41J2/015Ink jet characterised by the jet generation process
    • B41J2/04Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/055Devices for absorbing or preventing back-pressure

Landscapes

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

Abstract

PURPOSE:To prevent the flow of ink from running in a reverse direction to an ink chamber, by providing a check valve in a passage communicating a pressure chamber with the ink chamber of a printer head. CONSTITUTION:When a pulse signal at a predetermined voltage is applied to a piezoelectric ceramic 33, the capacity of a pressure chamber 25 is reduced thereby to cause a predetermined amount of ink 34 to be jetted from a nozzle 24. At a next moment, a pressure plate 15 is returned to an original shape, and further expanded outwards. At the same time, a valve body 30 constituting a check valve or non-return valve is opened, so that the pressure chamber 25 is communicated to an ink chamber via a passage 31 and a notch 32. Consequently, the ink is injected into the pressure chamber 25, without the air being sucked in from the nozzle 24. When the pressure plate 15 is returned back to the original shape again, the valve body 30 closes the passage 31 simultaneously. As a result, the ink is prevented from running in a reverse direction to the ink chamber through the passage 31 and the notch 32. Accordingly, the propulsion because of the deformation of the piezoelectric ceramic can be fully utilized as an energy for ejecting the ink.
JP16151387A 1987-06-29 1987-06-29 Ink-jet recording apparatus Pending JPS645853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16151387A JPS645853A (en) 1987-06-29 1987-06-29 Ink-jet recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16151387A JPS645853A (en) 1987-06-29 1987-06-29 Ink-jet recording apparatus

Publications (1)

Publication Number Publication Date
JPS645853A true JPS645853A (en) 1989-01-10

Family

ID=15736492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16151387A Pending JPS645853A (en) 1987-06-29 1987-06-29 Ink-jet recording apparatus

Country Status (1)

Country Link
JP (1) JPS645853A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7182432B2 (en) 2003-04-08 2007-02-27 Oce-Technologies B.V. Inkjet printhead
GB2516845A (en) * 2013-07-31 2015-02-11 Ingegneria Ceramica S R L An Improved Actuator and Method of Driving Thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7182432B2 (en) 2003-04-08 2007-02-27 Oce-Technologies B.V. Inkjet printhead
GB2516845A (en) * 2013-07-31 2015-02-11 Ingegneria Ceramica S R L An Improved Actuator and Method of Driving Thereof

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