JPS57138951A - Apparatus for producing ink particle - Google Patents

Apparatus for producing ink particle

Info

Publication number
JPS57138951A
JPS57138951A JP2310281A JP2310281A JPS57138951A JP S57138951 A JPS57138951 A JP S57138951A JP 2310281 A JP2310281 A JP 2310281A JP 2310281 A JP2310281 A JP 2310281A JP S57138951 A JPS57138951 A JP S57138951A
Authority
JP
Japan
Prior art keywords
ink particles
excitation voltage
ink
thetac
phi
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
JP2310281A
Other languages
Japanese (ja)
Inventor
Masaji Sakae
Kiyohiko Tanno
Takehiro Yamada
Yasumasa Matsuda
Eiji Yoshino
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.)
Koki Holdings Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Ltd
Hitachi Koki 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 Hitachi Ltd, Hitachi Koki Co Ltd filed Critical Hitachi Ltd
Priority to JP2310281A priority Critical patent/JPS57138951A/en
Publication of JPS57138951A publication Critical patent/JPS57138951A/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

Landscapes

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

Abstract

PURPOSE:To stabilize the generation of ink particles by setting the ratio L/phi between the diameter phi of a nozzle hole and the axial length L thereof at 0.7 or more in an ink particle generator designed to generate F pieces of ink particles per sec employing a fundamental frequency F and an excitation voltage containing a double higher harmonic. CONSTITUTION:An electric-mechanical conversion element 4 is excited by an excitation voltage source 5 adapted to generate an excitation voltage Ve receiving input signals of frequency F and 2F respectively from first and second oscillators 12 and 13, F pieces per sec of ink particles are generated from an ink column injected through a nozzle hole 7 of an orifice plate 3 on a nozzle 1. The generation of the ink particles relates to the frequency component of the excitation voltage Ve and a difference in the phase between the frequencies F and 2F. There is the center phase difference thetac where ink particles are generated most stably. The center phase difference thetac depends on the ratio between the average diameter phi of the nozzle hole 7 and the length L thereof. Where L/phi=0.7 or more, thetac=60 deg..
JP2310281A 1981-02-20 1981-02-20 Apparatus for producing ink particle Pending JPS57138951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2310281A JPS57138951A (en) 1981-02-20 1981-02-20 Apparatus for producing ink particle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2310281A JPS57138951A (en) 1981-02-20 1981-02-20 Apparatus for producing ink particle

Publications (1)

Publication Number Publication Date
JPS57138951A true JPS57138951A (en) 1982-08-27

Family

ID=12101088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2310281A Pending JPS57138951A (en) 1981-02-20 1981-02-20 Apparatus for producing ink particle

Country Status (1)

Country Link
JP (1) JPS57138951A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008794A1 (en) * 1992-10-16 1994-04-28 Willett International Limited Method for assembling devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5054632A (en) * 1973-06-13 1975-05-14
JPS5168133A (en) * 1974-11-01 1976-06-12 Dick Co Ab
JPS5232636A (en) * 1975-09-05 1977-03-12 Ibm Ink jet head
JPS5370631A (en) * 1976-12-06 1978-06-23 Hitachi Ltd Ink jet recording unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5054632A (en) * 1973-06-13 1975-05-14
JPS5168133A (en) * 1974-11-01 1976-06-12 Dick Co Ab
JPS5232636A (en) * 1975-09-05 1977-03-12 Ibm Ink jet head
JPS5370631A (en) * 1976-12-06 1978-06-23 Hitachi Ltd Ink jet recording unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008794A1 (en) * 1992-10-16 1994-04-28 Willett International Limited Method for assembling devices

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