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ES2000638A6 - Circuito de regulacion para una cabeza o cabezal de imprenta o estampacion por chorro de tinta - Google Patents

Circuito de regulacion para una cabeza o cabezal de imprenta o estampacion por chorro de tinta

Info

Publication number
ES2000638A6
ES2000638A6 ES8600067A ES8600067A ES2000638A6 ES 2000638 A6 ES2000638 A6 ES 2000638A6 ES 8600067 A ES8600067 A ES 8600067A ES 8600067 A ES8600067 A ES 8600067A ES 2000638 A6 ES2000638 A6 ES 2000638A6
Authority
ES
Spain
Prior art keywords
drop
ink
control circuit
expulsion
amplified
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.)
Expired
Application number
ES8600067A
Other languages
English (en)
Inventor
Alessandro Scardovi
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.)
Olivetti SpA
TIM SpA
Original Assignee
Olivetti SpA
Ing C Olivetti and C SpA
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 Olivetti SpA, Ing C Olivetti and C SpA filed Critical Olivetti SpA
Publication of ES2000638A6 publication Critical patent/ES2000638A6/es
Expired 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

CIRCUITO DE REGULACION PARA UNA CABEZA O CABEZAL DE IMPRENTA O ESTAMPACION POR CHORRO DE TINTA. SE APLICAN AL CIRCUITO DE REGULACION DOS IMPULSOS DE TENSION CONSECUTIVOS DE IGUAL DURACION Y DE POLARIDAD OPUESTA. LOS DOS IMPULSOS COMBINADOS ENTRE SI Y AMPLIFICADOS DAN LUGAR A UNA SENYAL DE ONDA PARTICULAR, QUE SE APLICA AL TRANSDUCTOR PIEZOELECTRICO PARA LA EXPULSION DE UNA GOTA DE TINTA EXENTA DE PERTURBACIONES PROVOCADAS POR LAS VIBRACIONES DEL MENISCO EN EL INSTANTE DE LA SEPARACION DE LA GOTA Y PARA EFECTUAR LA CANCELACION DE LAS ONDAS REFLEJADAS EN EL CONDUCTO. EL TRANSDUCTOR FORMA EN EL CONDUCTO DE LA TINTA UNA ONDA DE PRESION DE FORMA COMPLEJA, UNA PRIMERA PARTE DE LA CUAL CONTRIBUYE A LA EXPULSION DE UNA GOTA DE TINTA Y UNA SEGUNDA PARTE DE LA CUAL OPORTUNAMENTE DESFASADA RESPECTO A LA PRIMERA PARTE, NEUTRALIZA LAS REFLEXIONES CAUSADAS POR LA PRIMERA PARTE. UN TRANSISTOR AMPLIFICADOR SE POLARIZA POR MEDIO DE UNA RED RESISTIVA ALIMENTADA POR UNA TENSION CONSTANTE DE REFERENCIA Y ESTACONECTADO EN SU SALIDA A UN FILTRO RC PARA MODIFICAR EL DECLIVE DE LOS FRENTES DE LA SENYAL AMPLIFICADA POR EL TRANSISTOR.
ES8600067A 1985-07-01 1986-07-01 Circuito de regulacion para una cabeza o cabezal de imprenta o estampacion por chorro de tinta Expired ES2000638A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67601/85A IT1182478B (it) 1985-07-01 1985-07-01 Circuito di pilotaggio e di cancellazione di onde riflesse per una testina di stampa a getto di inchiostro

Publications (1)

Publication Number Publication Date
ES2000638A6 true ES2000638A6 (es) 1988-03-16

Family

ID=11303774

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8600067A Expired ES2000638A6 (es) 1985-07-01 1986-07-01 Circuito de regulacion para una cabeza o cabezal de imprenta o estampacion por chorro de tinta

Country Status (7)

Country Link
US (1) US4752790A (es)
EP (1) EP0208484B1 (es)
JP (1) JPH078565B2 (es)
BR (1) BR8603041A (es)
DE (1) DE3684188D1 (es)
ES (1) ES2000638A6 (es)
IT (1) IT1182478B (es)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2854575B2 (ja) * 1986-06-20 1999-02-03 キヤノン株式会社 インクジエツト記録装置
US4897665A (en) * 1986-10-09 1990-01-30 Canon Kabushiki Kaisha Method of driving an ink jet recording head
US5264865A (en) * 1986-12-17 1993-11-23 Canon Kabushiki Kaisha Ink jet recording method and apparatus utilizing temperature dependent, pre-discharge, meniscus retraction
JPS63153149A (ja) * 1986-12-17 1988-06-25 Canon Inc インクジエツト記録方法
JPS63153148A (ja) * 1986-12-17 1988-06-25 Canon Inc 液体噴射記録方法
JP3262363B2 (ja) * 1991-04-26 2002-03-04 キヤノン株式会社 インクジェット記録装置
US6149259A (en) * 1991-04-26 2000-11-21 Canon Kabushiki Kaisha Ink jet recording apparatus and method capable of performing high-speed recording
US5436648A (en) * 1991-08-16 1995-07-25 Compaq Computer Corporation Switched digital drive system for an ink jet printhead
US5521618A (en) * 1991-08-16 1996-05-28 Compaq Computer Corporation Dual element switched digital drive system for an ink jet printhead
US5461403A (en) * 1991-08-16 1995-10-24 Compaq Computer Corporation Droplet volume modulation techniques for ink jet printheads
US5426455A (en) * 1993-05-10 1995-06-20 Compaq Computer Corporation Three element switched digital drive system for an ink jet printhead
US5557304A (en) * 1993-05-10 1996-09-17 Compaq Computer Corporation Spot size modulatable ink jet printhead
US5444467A (en) * 1993-05-10 1995-08-22 Compaq Computer Corporation Differential drive system for an ink jet printhead
US6123405A (en) * 1994-03-16 2000-09-26 Xaar Technology Limited Method of operating a multi-channel printhead using negative and positive pressure wave reflection coefficient and a driving circuit therefor
ATE183608T1 (de) 1994-06-15 1999-09-15 Compaq Computer Corp Verfahren und druckkopf zur erzeugung von gradiententondarstellungen
DE69534271T2 (de) * 1994-07-11 2006-05-11 Kabushiki Kaisha Toshiba, Kawasaki Tintenstrahlaufzeichnungsgerät
US6217159B1 (en) 1995-04-21 2001-04-17 Seiko Epson Corporation Ink jet printing device
JPH0952360A (ja) * 1995-04-21 1997-02-25 Seiko Epson Corp インクジェット式記録装置
US6126259A (en) * 1997-03-25 2000-10-03 Trident International, Inc. Method for increasing the throw distance and velocity for an impulse ink jet
US6276774B1 (en) 1998-01-24 2001-08-21 Eastman Kodak Company Imaging apparatus capable of inhibiting inadvertent ejection of a satellite ink droplet therefrom and method of assembling same
US6186610B1 (en) 1998-09-21 2001-02-13 Eastman Kodak Company Imaging apparatus capable of suppressing inadvertent ejection of a satellite ink droplet therefrom and method of assembling same
JP3920596B2 (ja) * 2001-06-25 2007-05-30 東芝テック株式会社 インクジェット記録装置及びインクジェット記録方法
US9283750B2 (en) 2005-05-20 2016-03-15 Hewlett-Packard Development Company, L.P. Constant current mode firing circuit for thermal inkjet-printing nozzle
US8393702B2 (en) 2009-12-10 2013-03-12 Fujifilm Corporation Separation of drive pulses for fluid ejector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835262C2 (de) * 1978-08-11 1982-09-09 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Ansteuerung eines Tintenstrahl-Aufzeichnungsorgans
US4393384A (en) * 1981-06-05 1983-07-12 System Industries Inc. Ink printhead droplet ejecting technique
EP0090669A3 (en) * 1982-03-31 1990-12-19 Honeywell Inc. Electromagnetic radiation detector
DE3223636A1 (de) * 1982-06-24 1983-12-29 Siemens AG, 1000 Berlin und 8000 München Ansteuerschaltung fuer piezowandler in tintenmosaikschreibeinrichtungen
IT1155548B (it) * 1982-07-16 1987-01-28 Olivetti & Co Spa Sistema di pilotaggio di un elemento scrivente a getto selettivo d inchiostro

Also Published As

Publication number Publication date
IT8567601A0 (it) 1985-07-01
JPH078565B2 (ja) 1995-02-01
BR8603041A (pt) 1987-03-17
DE3684188D1 (de) 1992-04-16
EP0208484B1 (en) 1992-03-11
EP0208484A3 (en) 1988-07-20
IT1182478B (it) 1987-10-05
JPS6264559A (ja) 1987-03-23
US4752790A (en) 1988-06-21
EP0208484A2 (en) 1987-01-14

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20001102