JPS57208260A - Ink jet head - Google Patents

Ink jet head

Info

Publication number
JPS57208260A
JPS57208260A JP9494181A JP9494181A JPS57208260A JP S57208260 A JPS57208260 A JP S57208260A JP 9494181 A JP9494181 A JP 9494181A JP 9494181 A JP9494181 A JP 9494181A JP S57208260 A JPS57208260 A JP S57208260A
Authority
JP
Japan
Prior art keywords
electrode
bubbles
excitation
circuit
electrodes
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
JP9494181A
Other languages
Japanese (ja)
Inventor
Tamio Ohori
Isokazu Furukawa
Sadao Kakefu
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 JP9494181A priority Critical patent/JPS57208260A/en
Publication of JPS57208260A publication Critical patent/JPS57208260A/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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/19—Ink jet characterised by ink handling for removing air bubbles

Landscapes

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

Abstract

PURPOSE:To detect the presence of bubbles accurately without providing any additional part for detection and using any complicated means for observation of jetting state or the like by providing an electrode for detecting vibration on a vibrator in addition to the electrode for inputting an exciting power. CONSTITUTION:An electrode 8 is entirely provided on one side of an excitation piezo-electric vibrator 7 and bonded on a vibration plate 6 while an excitation input electrode 9 and a detection electrode 10 are formed on the other side thereof. An excitation circuit 11 is connected between the electrodes 9 and 8 while an output detection circuit 12 is provided between the electrodes 10 and 8. In operation, first, when a single pulse is inputted into an electrode 9 from the excitation circuit 11, a wave form least disturbed is provided to the output of the electrode 10 if without bubbles. If with bubbles, a signal which tends to cause a bounding or a leaking is outputted. Therefore, a filter or the like provided on an output detection circuit 12 discriminates frequency thereby determining the pressure of bubbles depending on the magnitude of residual signal.
JP9494181A 1981-06-19 1981-06-19 Ink jet head Pending JPS57208260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9494181A JPS57208260A (en) 1981-06-19 1981-06-19 Ink jet head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9494181A JPS57208260A (en) 1981-06-19 1981-06-19 Ink jet head

Publications (1)

Publication Number Publication Date
JPS57208260A true JPS57208260A (en) 1982-12-21

Family

ID=14123969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9494181A Pending JPS57208260A (en) 1981-06-19 1981-06-19 Ink jet head

Country Status (1)

Country Link
JP (1) JPS57208260A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7137679B2 (en) * 2000-05-18 2006-11-21 Seiko Epson Corporation Ink consumption detecting method, and ink jet recording apparatus
US7251996B2 (en) 1999-05-20 2007-08-07 Seiko Epson Corporation Liquid detecting piezoelectric device, liquid container and mounting module member
US7971945B2 (en) 2000-05-18 2011-07-05 Seiko Epson Corporation Ink consumption detecting method, and ink jet recording apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7251996B2 (en) 1999-05-20 2007-08-07 Seiko Epson Corporation Liquid detecting piezoelectric device, liquid container and mounting module member
US7137679B2 (en) * 2000-05-18 2006-11-21 Seiko Epson Corporation Ink consumption detecting method, and ink jet recording apparatus
US7971945B2 (en) 2000-05-18 2011-07-05 Seiko Epson Corporation Ink consumption detecting method, and ink jet recording apparatus

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