FR2497043B1 - IMAGE PRINTING DEVICE - Google Patents

IMAGE PRINTING DEVICE

Info

Publication number
FR2497043B1
FR2497043B1 FR8027038A FR8027038A FR2497043B1 FR 2497043 B1 FR2497043 B1 FR 2497043B1 FR 8027038 A FR8027038 A FR 8027038A FR 8027038 A FR8027038 A FR 8027038A FR 2497043 B1 FR2497043 B1 FR 2497043B1
Authority
FR
France
Prior art keywords
printing device
image printing
image
printing
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
FR8027038A
Other languages
French (fr)
Other versions
FR2497043A1 (en
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR8027038A priority Critical patent/FR2497043B1/en
Publication of FR2497043A1 publication Critical patent/FR2497043A1/en
Application granted granted Critical
Publication of FR2497043B1 publication Critical patent/FR2497043B1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4057—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern being a mixture of differently sized sub-patterns, e.g. spots having only a few different diameters
FR8027038A 1980-12-19 1980-12-19 IMAGE PRINTING DEVICE Expired FR2497043B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8027038A FR2497043B1 (en) 1980-12-19 1980-12-19 IMAGE PRINTING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8027038A FR2497043B1 (en) 1980-12-19 1980-12-19 IMAGE PRINTING DEVICE

Publications (2)

Publication Number Publication Date
FR2497043A1 FR2497043A1 (en) 1982-06-25
FR2497043B1 true FR2497043B1 (en) 1985-09-13

Family

ID=9249301

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8027038A Expired FR2497043B1 (en) 1980-12-19 1980-12-19 IMAGE PRINTING DEVICE

Country Status (1)

Country Link
FR (1) FR2497043B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969052A (en) * 1988-05-11 1990-11-06 Canon Kabushiki Kaisha Image processing method and apparatus
US5111302A (en) * 1988-12-02 1992-05-05 Hewlett-Packard Company Method and system for enhancing the quality of both color and black and white images produced by ink jet and electrophotographic printers
JP2941355B2 (en) * 1990-05-18 1999-08-25 株式会社日立製作所 Printing apparatus and information processing apparatus using the printing apparatus
DE4025793A1 (en) * 1990-08-13 1992-02-20 Siemens Ag METHOD FOR PRINTING A HALFTONE IMAGE
DE69324653T2 (en) * 1992-06-05 1999-11-11 Eastman Kodak Co METHOD AND DEVICE FOR IMAGE REPRODUCTION BY MEANS OF GRAY TONE PRINTING
US5914731A (en) * 1993-09-30 1999-06-22 Canon Kabushiki Kaisha Data recording using randomized variations to prevent visual artifacts due to non-uniformities in a printing apparatus
JP3969981B2 (en) 2000-09-22 2007-09-05 キヤノン株式会社 Electron source driving method, driving circuit, electron source, and image forming apparatus
JP3969985B2 (en) 2000-10-04 2007-09-05 キヤノン株式会社 Electron source, image forming apparatus driving method, and image forming apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU39915A1 (en) * 1960-04-01
DE1597773C3 (en) * 1967-08-26 1974-09-19 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Method for setting rasterized halftone images
US3720784A (en) * 1971-02-12 1973-03-13 Bell Telephone Labor Inc Recording and display method and apparatus
JPS5233523B1 (en) * 1971-02-18 1977-08-29
FR2280274A1 (en) * 1974-07-25 1976-02-20 Cit Alcatel Picture transmission system - video signal in sender converted into binary data signal and reconverted in receiver
US4084196A (en) * 1977-01-31 1978-04-11 Dacom, Inc. Electronic half-tone generating means for facsimile reproduction system
US4164717A (en) * 1977-11-07 1979-08-14 Eastman Kodak Company Acoustooptic modulation and deflection

Also Published As

Publication number Publication date
FR2497043A1 (en) 1982-06-25

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Legal Events

Date Code Title Description
ST Notification of lapse