JPS60151061A - Ink jet recording system - Google Patents

Ink jet recording system

Info

Publication number
JPS60151061A
JPS60151061A JP882884A JP882884A JPS60151061A JP S60151061 A JPS60151061 A JP S60151061A JP 882884 A JP882884 A JP 882884A JP 882884 A JP882884 A JP 882884A JP S60151061 A JPS60151061 A JP S60151061A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
density
ink
pulse
head
level
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
JP882884A
Inventor
Hidehiko Kato
Mitsuo Tsuzuki
Original Assignee
Nec Corp
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024Details of scanning heads ; Means for illuminating the original
    • H04N1/032Details of scanning heads ; Means for illuminating the original for picture information reproduction
    • H04N1/034Details of scanning heads ; Means for illuminating the original for picture information reproduction using ink, e.g. ink-jet heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/21Ink jet for multi-colour printing
    • B41J2/2121Ink jet for multi-colour printing characterised by dot size, e.g. combinations of printed dots of different diameter
    • B41J2/2128Ink jet for multi-colour printing characterised by dot size, e.g. combinations of printed dots of different diameter by means of energy modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40Picture signal circuits
    • H04N1/40087Multi-toning, i.e. converting a continuous-tone signal for reproduction with more than two discrete brightnesses or optical densities, e.g. dots of grey and black inks on white paper

Abstract

PURPOSE:To perform a halftone recording having reproducing capacity from low density to high density without decrease in the resolution by selecting an ink jet head for injecting ink in accordance with a density signal and controlling the volume of ink droplet. CONSTITUTION:A head can inject an ink droplet volume approximately proportional to the pulse length from pulse length tw1 to tw2 of a drive pulse. When th value of input density DI is dense value DIa larger than constant value DT, a high density ink head is selected, ink droplet is injected in pulse length twa corresponding to density level DIa, thereby obtaining corresponding recording density D0a. On the other hand, when the input density level is the value DIb smaller than DT, a low density ink head is selected, ink droplet is injected in pulse length twp corresponding to the density level DIb, thereby obtaining the corresponding recording density Dob. Thus, halftone record from low density DL2 to high density DH1 can be obtained by selecting the head for injecting by the input density level.
JP882884A 1984-01-20 1984-01-20 Ink jet recording system Pending JPS60151061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP882884A JPS60151061A (en) 1984-01-20 1984-01-20 Ink jet recording system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP882884A JPS60151061A (en) 1984-01-20 1984-01-20 Ink jet recording system
EP19850300375 EP0150119A3 (en) 1984-01-20 1985-01-21 Ink-jet recording system capable of recording half-tones

Publications (1)

Publication Number Publication Date
JPS60151061A true true JPS60151061A (en) 1985-08-08

Family

ID=11703650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP882884A Pending JPS60151061A (en) 1984-01-20 1984-01-20 Ink jet recording system

Country Status (1)

Country Link
JP (1) JPS60151061A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6154943A (en) * 1984-08-27 1986-03-19 Mitsubishi Electric Corp Recording method using ink jet and ink jet head thereof
JPH02231149A (en) * 1988-12-27 1990-09-13 Hewlett Packard Co <Hp> Printing method of pixel location by ink jet printer using multiple nozzles
JPH03218851A (en) * 1989-03-24 1991-09-26 Canon Inc Recording head cartridge and recording device using cartridge
US6149257A (en) * 1996-07-12 2000-11-21 Canon Kabushiki Kaisha Ink-jet printing apparatus capable of increased image uniformity
US6270181B1 (en) 1998-09-30 2001-08-07 Nec Corporation Inkjet printer and method of printing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53102034A (en) * 1977-02-17 1978-09-06 Ricoh Co Ltd Ink jet printing system
JPS57156264A (en) * 1981-03-20 1982-09-27 Fuji Photo Film Co Ltd Ink jet recording system
JPS58201665A (en) * 1982-05-19 1983-11-24 Canon Inc Ink jet printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53102034A (en) * 1977-02-17 1978-09-06 Ricoh Co Ltd Ink jet printing system
JPS57156264A (en) * 1981-03-20 1982-09-27 Fuji Photo Film Co Ltd Ink jet recording system
JPS58201665A (en) * 1982-05-19 1983-11-24 Canon Inc Ink jet printer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6154943A (en) * 1984-08-27 1986-03-19 Mitsubishi Electric Corp Recording method using ink jet and ink jet head thereof
JPH02231149A (en) * 1988-12-27 1990-09-13 Hewlett Packard Co <Hp> Printing method of pixel location by ink jet printer using multiple nozzles
JPH03218851A (en) * 1989-03-24 1991-09-26 Canon Inc Recording head cartridge and recording device using cartridge
US5984449A (en) * 1989-03-24 1999-11-16 Canon Kabushiki Kaisha Ink jet recording by superimposing inks of different densities
US6149257A (en) * 1996-07-12 2000-11-21 Canon Kabushiki Kaisha Ink-jet printing apparatus capable of increased image uniformity
US6270181B1 (en) 1998-09-30 2001-08-07 Nec Corporation Inkjet printer and method of printing

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