JPS55114574A - Printing head for ink jet printer - Google Patents

Printing head for ink jet printer

Info

Publication number
JPS55114574A
JPS55114574A JP2296079A JP2296079A JPS55114574A JP S55114574 A JPS55114574 A JP S55114574A JP 2296079 A JP2296079 A JP 2296079A JP 2296079 A JP2296079 A JP 2296079A JP S55114574 A JPS55114574 A JP S55114574A
Authority
JP
Japan
Prior art keywords
ink
nozzle
oscillatory plate
spherical surface
focus
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
JP2296079A
Other languages
Japanese (ja)
Inventor
Isokazu Furukawa
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 JP2296079A priority Critical patent/JPS55114574A/en
Publication of JPS55114574A publication Critical patent/JPS55114574A/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
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14008—Structure of acoustic ink jet print heads

Landscapes

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

Abstract

PURPOSE:To form ink droplets at a constant size at all times even when the physical properties of the ink are varied, by employing an oscillatory plate having a spherical surface instead of a flat oscillatory plate, and providing a nozzle in the focus of the spherical surface of the oscillatory plate, whereby the oscillating energy can be concentrated to the vicinity of the nozzle. CONSTITUTION:An oscillatory plate 8 having a spherical surface is formed, and a nozzle 2 is provided in the focus of the spherical surface mentioned above. An oscillating voltage is applied to the oscillatory plate 8 through a lead wire 6 with an ink chamber 3 filled with a pressurized printing ink. As a result, the oscillatory plate 8 provided behind the nozzle 2 oscillated to apply the oscillating energy to the printing ink. The oscillating energy is propagated through the ink toward the focus of the spherical surface of the oscillatory plate 8 to excite the ink in the vicinity of the nozzle 2. As a result, the ink alone is ejected to form ink droplets 7. After a fraction of ink has been ejected from the nozzle 2, another fraction of pressurized ink in the ink chamber 3 flows into the nozzle 2. Therefore, the size of the ink droplets 7 can be maintained at constant at all times even when the temperature and the like of the ink is varied.
JP2296079A 1979-02-28 1979-02-28 Printing head for ink jet printer Pending JPS55114574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2296079A JPS55114574A (en) 1979-02-28 1979-02-28 Printing head for ink jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2296079A JPS55114574A (en) 1979-02-28 1979-02-28 Printing head for ink jet printer

Publications (1)

Publication Number Publication Date
JPS55114574A true JPS55114574A (en) 1980-09-03

Family

ID=12097157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2296079A Pending JPS55114574A (en) 1979-02-28 1979-02-28 Printing head for ink jet printer

Country Status (1)

Country Link
JP (1) JPS55114574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635079A (en) * 1985-02-11 1987-01-06 Pitney Bowes Inc. Single element transducer for an ink jet device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635079A (en) * 1985-02-11 1987-01-06 Pitney Bowes Inc. Single element transducer for an ink jet device

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