JPS57188370A - Ink jet head - Google Patents

Ink jet head

Info

Publication number
JPS57188370A
JPS57188370A JP7340781A JP7340781A JPS57188370A JP S57188370 A JPS57188370 A JP S57188370A JP 7340781 A JP7340781 A JP 7340781A JP 7340781 A JP7340781 A JP 7340781A JP S57188370 A JPS57188370 A JP S57188370A
Authority
JP
Japan
Prior art keywords
nod
parts
vibrator
vibration
jet head
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
JP7340781A
Other languages
Japanese (ja)
Inventor
Isokazu Furukawa
Sadao Kakefu
Tamio Ohori
Tatsuya Furukawa
Michio Umezawa
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 JP7340781A priority Critical patent/JPS57188370A/en
Publication of JPS57188370A publication Critical patent/JPS57188370A/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

Landscapes

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

Abstract

PURPOSE:To obtain a uniform ink injecting characteristics by providing a highly elastic sound wave absorbing member between a part becoming a vibrating nod when an ultrasonic vibrator of an ink jet head is vibrated and a nozzle array, thereby preventing the mutual interference of a pressure wave. CONSTITUTION:When a drive signal is applied to an ultrasonic vibrator 21, the vibrator 21 vibrates. A vibrating plate 20 vibrates in response to the vibration of the vibrator 21, and loop parts A and nod parts B are produced corresponding to the vibration wavelength. A sound wave absorbing member 23 made of a macromolecular material having high elasticity is provided between the nod parts B and a nozzle plate 19, thereby preventing the mutual interference of the pressure wave produced from the loop parts A of the vibration. The member 23 is not necessarily provided to completely divide a liquid chamber 11.
JP7340781A 1981-05-18 1981-05-18 Ink jet head Pending JPS57188370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7340781A JPS57188370A (en) 1981-05-18 1981-05-18 Ink jet head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7340781A JPS57188370A (en) 1981-05-18 1981-05-18 Ink jet head

Publications (1)

Publication Number Publication Date
JPS57188370A true JPS57188370A (en) 1982-11-19

Family

ID=13517303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7340781A Pending JPS57188370A (en) 1981-05-18 1981-05-18 Ink jet head

Country Status (1)

Country Link
JP (1) JPS57188370A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214855A2 (en) * 1985-09-05 1987-03-18 Nec Corporation Drop-on-demand ink-jet printing apparatus
US6036301A (en) * 1997-03-13 2000-03-14 Kabushiki Kaisha Toshiba Ink jet recording apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214855A2 (en) * 1985-09-05 1987-03-18 Nec Corporation Drop-on-demand ink-jet printing apparatus
US6036301A (en) * 1997-03-13 2000-03-14 Kabushiki Kaisha Toshiba Ink jet recording apparatus

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