SE428166B - Tethetsreglerkrets for att reglera operationen av en punktmatriskopieringsanordning - Google Patents

Tethetsreglerkrets for att reglera operationen av en punktmatriskopieringsanordning

Info

Publication number
SE428166B
SE428166B SE7802365A SE7802365A SE428166B SE 428166 B SE428166 B SE 428166B SE 7802365 A SE7802365 A SE 7802365A SE 7802365 A SE7802365 A SE 7802365A SE 428166 B SE428166 B SE 428166B
Authority
SE
Sweden
Prior art keywords
output signal
original
output
diode
control circuit
Prior art date
Application number
SE7802365A
Other languages
English (en)
Swedish (sv)
Other versions
SE7802365L (sv
Inventor
J E Burnett
Original Assignee
Mead 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
Application filed by Mead Corp filed Critical Mead Corp
Publication of SE7802365L publication Critical patent/SE7802365L/xx
Publication of SE428166B publication Critical patent/SE428166B/sv

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
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Ink Jet (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Facsimile Scanning Arrangements (AREA)
SE7802365A 1977-03-03 1978-03-02 Tethetsreglerkrets for att reglera operationen av en punktmatriskopieringsanordning SE428166B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/774,154 US4106061A (en) 1977-03-03 1977-03-03 Density control for ink jet copier

Publications (2)

Publication Number Publication Date
SE7802365L SE7802365L (sv) 1978-09-04
SE428166B true SE428166B (sv) 1983-06-06

Family

ID=25100405

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7802365A SE428166B (sv) 1977-03-03 1978-03-02 Tethetsreglerkrets for att reglera operationen av en punktmatriskopieringsanordning

Country Status (13)

Country Link
US (1) US4106061A (nl)
JP (1) JPS5855714B2 (nl)
BE (1) BE864553A (nl)
BR (1) BR7801283A (nl)
CA (1) CA1090863A (nl)
CH (1) CH630008A5 (nl)
DE (1) DE2809338C3 (nl)
FR (1) FR2382335A1 (nl)
GB (1) GB1556642A (nl)
IL (1) IL53864A (nl)
IT (1) IT1107053B (nl)
NL (1) NL7800930A (nl)
SE (1) SE428166B (nl)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112469A (en) * 1977-04-21 1978-09-05 The Mead Corporation Jet drop copying apparatus
US4155103A (en) * 1977-11-28 1979-05-15 The Mead Corporation Dot matrix copying apparatus
JPS6023541B2 (ja) * 1978-05-02 1985-06-07 株式会社リコー デイジタル複写機
DE2936667A1 (de) * 1978-09-12 1980-03-20 Canon Kk Kopiergeraet
US4207579A (en) * 1979-01-08 1980-06-10 The Mead Corporation Reciprocating paper handling apparatus for use in an ink jet copier
FI790105A (fi) * 1979-01-12 1980-07-13 Valmet Oy Foerfarande och anordning foer behandling av fiberbana
US4225872A (en) * 1979-01-31 1980-09-30 The Mead Corporation Ink jet printer
US4285507A (en) * 1979-01-31 1981-08-25 The Mead Corporation Ink jet printer
JPS55130781A (en) * 1979-03-30 1980-10-09 Canon Inc Liquid injecting recorder
US4237466A (en) * 1979-05-07 1980-12-02 The Mead Corporation Paper transport system for an ink jet printer
US4278999A (en) * 1979-09-12 1981-07-14 The Mead Corporation Moving image scanner
US4469026A (en) * 1979-09-20 1984-09-04 Ibm Corporation Method and apparatus for controlling drying and detaching of printed material
US4321627A (en) * 1979-09-20 1982-03-23 International Business Machines Corporation Optical scanner for ink jet printer
JPS5691228A (en) * 1979-12-25 1981-07-24 Fuji Photo Film Co Ltd Laser recorder
JPS5738065A (en) * 1980-08-20 1982-03-02 Canon Inc Video forming device
US4394685A (en) * 1980-09-04 1983-07-19 Centronics Data Computer Corporation Interface for operating a dot matrix printer for printing a video image
GB2089165B (en) * 1980-10-30 1985-10-09 Canon Kk Character and image processing
US4554593A (en) * 1981-01-02 1985-11-19 International Business Machines Corporation Universal thresholder/discriminator
US4395031A (en) * 1981-09-08 1983-07-26 The Webb Company Apparatus for printing books of signatures and method for same
US4642681A (en) * 1982-10-08 1987-02-10 Canon Kabushiki Kaisha Color image processing apparatus for generating color output signals and a black output signal in a mutually exclusive manner
JPS6062779A (ja) * 1983-08-31 1985-04-10 Nec Corp インクジェット記録方法
DE3343907C2 (de) * 1983-12-05 1986-02-27 Lothar 5300 Bonn Becker Optoelektronischer Handkopierer
JPS60208182A (ja) * 1984-03-30 1985-10-19 Canon Inc ビデオ画像記録装置
US4872063A (en) * 1988-03-17 1989-10-03 Optum Corporation Method to increase scanning resolution using a synthetic aperture
US5028192A (en) * 1988-07-15 1991-07-02 Foote & Davies, Inc. Binding and collating techniques
US5070410A (en) * 1989-03-21 1991-12-03 Hewlett-Packard Company Apparatus and method using a combined read/write head for processing and storing read signals and for providing firing signals to thermally actuated ink ejection elements
DE69417319T2 (de) * 1993-08-30 1999-07-15 Hewlett-Packard Co., Palo Alto, Calif. Bildabtastkopf für einen thermischen Tintenstrahldrucker
US5532825A (en) * 1993-08-30 1996-07-02 Hewlett-Packard Company Add-on scanner for existing ink jet printer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1973725A (en) * 1934-09-18 Picture transmission amplifier
NL263106A (nl) * 1960-04-01
US3294896A (en) * 1963-07-24 1966-12-27 Bell Telephone Labor Inc Digital encoder for facsimile transmission
FR1457309A (fr) * 1965-05-13 1966-01-24 Colos Soc Procédé et dispositif électroniques de reproduction des demi-teintes sur électrostencil
US3580995A (en) * 1968-04-29 1971-05-25 Rca Corp Constant sized halftone dot image generator
US3613103A (en) * 1969-07-25 1971-10-12 Alden Res Found Analog signal modifying apparatus
JPS4883723A (nl) * 1972-02-08 1973-11-08
US3928718A (en) * 1973-05-09 1975-12-23 Hitachi Ltd Image reproducing system
US3977007A (en) * 1975-06-02 1976-08-24 Teletype Corporation Gray tone generation

Also Published As

Publication number Publication date
DE2809338B2 (de) 1981-05-07
IL53864A (en) 1980-11-30
IT7867250A0 (it) 1978-02-08
NL7800930A (nl) 1978-09-05
FR2382335B1 (nl) 1984-01-27
FR2382335A1 (fr) 1978-09-29
JPS5855714B2 (ja) 1983-12-10
JPS53109430A (en) 1978-09-25
CH630008A5 (de) 1982-05-28
BR7801283A (pt) 1978-09-26
US4106061A (en) 1978-08-08
IL53864A0 (en) 1978-04-30
SE7802365L (sv) 1978-09-04
DE2809338A1 (de) 1978-09-07
GB1556642A (en) 1979-11-28
CA1090863A (en) 1980-12-02
DE2809338C3 (de) 1982-01-28
IT1107053B (it) 1985-11-18
BE864553A (fr) 1978-09-04

Similar Documents

Publication Publication Date Title
SE428166B (sv) Tethetsreglerkrets for att reglera operationen av en punktmatriskopieringsanordning
EP0589539B1 (en) Image forming apparatus
US3928718A (en) Image reproducing system
EP0299012B1 (en) Circuit for generating center pulse-width modulated waveforms and non-impact printer using same
CA1313703C (en) Apparatus for generating an image from a digital video signal
DE3752136T2 (de) Vorrichtung für die Steuerung der Lichtmenge
DE19935971B4 (de) Bildaufzeichnungsvorrichtung
US4434431A (en) Multilevel image printing device
US4065773A (en) Method and apparatus for generating gray tones in an ink jet printer
SE436941B (sv) Fotografisk kopieringsanordning
US5170403A (en) Modulation circuit for grayscale laser printing
DE3744332C2 (de) Bilderzeugungsvorrichtung
JPS6226620B2 (nl)
US5264871A (en) Image forming apparatus having light beam intensity switching for detection purposes
US4706128A (en) Image reading and converting apparatus
US5111217A (en) Dot printer and method for grey level recording
US4151555A (en) Optical scanning and encoding device
US5043743A (en) Method and apparatus for the image-wise exposure of light-sensitive medium by a plurality of light valves
US4439789A (en) Binary scan system
US4219850A (en) Optical encoder
DE4017427A1 (de) Mehrton-laserstrahl-schreibeinrichtung fuer ein bilderzeugungsgeraet
US3422216A (en) Photo reproduction size variation
JPH1086382A (ja) 記録装置並びに該装置に用いる記録ユニット
JP2926844B2 (ja) デジタル画像形成法
JP2906557B2 (ja) デジタル画像形成法

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7802365-2

Effective date: 19900125

Format of ref document f/p: F