JPS5757668A - Ink jet head - Google Patents

Ink jet head

Info

Publication number
JPS5757668A
JPS5757668A JP13279380A JP13279380A JPS5757668A JP S5757668 A JPS5757668 A JP S5757668A JP 13279380 A JP13279380 A JP 13279380A JP 13279380 A JP13279380 A JP 13279380A JP S5757668 A JPS5757668 A JP S5757668A
Authority
JP
Japan
Prior art keywords
reflected wave
liquid chamber
coating layer
absorbed
propagated
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
JP13279380A
Other languages
Japanese (ja)
Inventor
Osamu Naruse
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13279380A priority Critical patent/JPS5757668A/en
Publication of JPS5757668A publication Critical patent/JPS5757668A/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 improve efficiency through absorbing reflected wave and preventing interferences of the reflected wave and progressive wave, by coating a mate rial of low acoustic impedance on inside wall surface of a liquid chamber. CONSTITUTION:A coating layer 4 is provided by applying a material of low acoustic impedance and high resistance against ink onto a reflected wave occurr ing section in a liquid chamber 3. An oscillation occurred in a transducer 11 is propagated to a nozzle section 6 through a diaphragm 10, and when the oscillation propagated to the coating layer 4 on wall surface of the liquid chamber 3 is absorbed, reflected wave is also absorbed at the same time. For the coating layer 4, teflon resin, etc. is used.
JP13279380A 1980-09-26 1980-09-26 Ink jet head Pending JPS5757668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13279380A JPS5757668A (en) 1980-09-26 1980-09-26 Ink jet head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13279380A JPS5757668A (en) 1980-09-26 1980-09-26 Ink jet head

Publications (1)

Publication Number Publication Date
JPS5757668A true JPS5757668A (en) 1982-04-06

Family

ID=15089679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13279380A Pending JPS5757668A (en) 1980-09-26 1980-09-26 Ink jet head

Country Status (1)

Country Link
JP (1) JPS5757668A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05162313A (en) * 1991-12-12 1993-06-29 Fujitsu Ltd Inkjet head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05162313A (en) * 1991-12-12 1993-06-29 Fujitsu Ltd Inkjet head

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