DE68915410D1 - Verfahren und Gerät zum Drucken von Grauwerten mit einem durch Wärme angetriebenen Tintenstrahl. - Google Patents

Verfahren und Gerät zum Drucken von Grauwerten mit einem durch Wärme angetriebenen Tintenstrahl.

Info

Publication number
DE68915410D1
DE68915410D1 DE68915410T DE68915410T DE68915410D1 DE 68915410 D1 DE68915410 D1 DE 68915410D1 DE 68915410 T DE68915410 T DE 68915410T DE 68915410 T DE68915410 T DE 68915410T DE 68915410 D1 DE68915410 D1 DE 68915410D1
Authority
DE
Germany
Prior art keywords
heat
ink jet
gray values
driven ink
printing gray
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 - Lifetime
Application number
DE68915410T
Other languages
English (en)
Other versions
DE68915410T2 (de
Inventor
John B R Dunn
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.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE68915410D1 publication Critical patent/DE68915410D1/de
Publication of DE68915410T2 publication Critical patent/DE68915410T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04598—Pre-pulse
    • 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
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/0458—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on heating elements forming bubbles
    • 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
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04588—Control methods or devices therefor, e.g. driver circuits, control circuits using a specific waveform
    • 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
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04593—Dot-size modulation by changing the size of the drop
    • 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
    • B41J2/21—Ink jet for multi-colour printing
    • B41J2/2121—Ink jet for multi-colour printing characterised by dot size, e.g. combinations of printed dots of different diameter
    • B41J2/2128—Ink jet for multi-colour printing characterised by dot size, e.g. combinations of printed dots of different diameter by means of energy modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
DE68915410T 1988-12-16 1989-12-12 Verfahren und Gerät zum Drucken von Grauwerten mit einem durch Wärme angetriebenen Tintenstrahl. Expired - Lifetime DE68915410T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28583688A 1988-12-16 1988-12-16
SG141094A SG141094G (en) 1988-12-16 1994-09-30 Method and apparatus for gray scale printing with a thermal ink jet pen

Publications (2)

Publication Number Publication Date
DE68915410D1 true DE68915410D1 (de) 1994-06-23
DE68915410T2 DE68915410T2 (de) 1994-12-22

Family

ID=26664393

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68915410T Expired - Lifetime DE68915410T2 (de) 1988-12-16 1989-12-12 Verfahren und Gerät zum Drucken von Grauwerten mit einem durch Wärme angetriebenen Tintenstrahl.

Country Status (5)

Country Link
EP (1) EP0373894B1 (de)
JP (1) JP3037350B2 (de)
DE (1) DE68915410T2 (de)
HK (1) HK136594A (de)
SG (1) SG141094G (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE248064T1 (de) * 1991-01-18 2003-09-15 Canon Kk Tintenstrahlaufzeichnungsverfahren und vorrichtung mit thermischer energie
US5894314A (en) * 1991-01-18 1999-04-13 Canon Kabushiki Kaisha Ink jet recording apparatus using thermal energy
US5997122A (en) * 1992-06-30 1999-12-07 Canon Kabushiki Kaisha Ink jet recording apparatus capable of performing liquid droplet diameter random variable recording and ink jet recording method using ink for liquid droplet random variable recording
JP3313819B2 (ja) * 1992-07-06 2002-08-12 キヤノン株式会社 記録装置及び方法
EP0649746A1 (de) * 1993-10-26 1995-04-26 Hewlett-Packard Company Tintenstrahldruckköpfe mit variablem Halbton-Betrieb
DE4428807C2 (de) * 1994-08-13 1996-10-10 Eastman Kodak Co Vorrichtung zur Geschwindigkeits- und Tropfenmassenvariation bei thermischen Tintenschreibern
US5969730A (en) * 1994-11-07 1999-10-19 Canon Aptex Inc. Printer
JP3413063B2 (ja) 1996-07-09 2003-06-03 キヤノン株式会社 液体吐出方法及び液体吐出ヘッド
JP4284109B2 (ja) 2003-05-26 2009-06-24 嘉宏 飯田 液滴噴射方法及び装置
AU2006349360A1 (en) * 2006-10-09 2008-04-17 Silverbrook Research Pty Ltd MEMS bubble generator for large stable vapor bubbles
US7491911B2 (en) 2006-10-10 2009-02-17 Silverbrook Research Pty Ltd MEMS bubble generator for large stable vapor bubbles
WO2009134247A1 (en) 2008-04-29 2009-11-05 Hewlett-Packard Development Company, L.P. Inks and ink sets for improved performance and image quality

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463359A (en) * 1979-04-02 1984-07-31 Canon Kabushiki Kaisha Droplet generating method and apparatus thereof
US4490728A (en) * 1981-08-14 1984-12-25 Hewlett-Packard Company Thermal ink jet printer
US4563689A (en) * 1983-02-05 1986-01-07 Konishiroku Photo Industry Co., Ltd. Method for ink-jet recording and apparatus therefor
IT1185799B (it) * 1985-06-10 1987-11-18 Olivetti & Co Spa Dispositivo di pilotaggio per un elemento di stampa a getto selettivo d inchiostro

Also Published As

Publication number Publication date
DE68915410T2 (de) 1994-12-22
JPH02214664A (ja) 1990-08-27
SG141094G (en) 1995-03-17
EP0373894A2 (de) 1990-06-20
EP0373894A3 (en) 1990-12-27
EP0373894B1 (de) 1994-05-18
JP3037350B2 (ja) 2000-04-24
HK136594A (en) 1994-12-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD CO. (N.D.GES.D.STAATES DELAWARE),

8327 Change in the person/name/address of the patent owner

Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, TE