GB2222880B - Method of determining areal coverage of primary colours in measuring segments of multi-coloured print originals in an offset printing machine - Google Patents

Method of determining areal coverage of primary colours in measuring segments of multi-coloured print originals in an offset printing machine

Info

Publication number
GB2222880B
GB2222880B GB8917897A GB8917897A GB2222880B GB 2222880 B GB2222880 B GB 2222880B GB 8917897 A GB8917897 A GB 8917897A GB 8917897 A GB8917897 A GB 8917897A GB 2222880 B GB2222880 B GB 2222880B
Authority
GB
United Kingdom
Prior art keywords
printing machine
offset printing
primary colours
areal coverage
measuring segments
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 - Fee Related
Application number
GB8917897A
Other versions
GB8917897D0 (en
GB2222880A (en
Inventor
Wolfgang Uebel
Klaus Fritzsch
Andrea Friedrich
Heribert Hoffman
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.)
Kombinat Polygraph Werner Lamberz VEB
Polygraph Leipzig Kombinat Veb
Original Assignee
Kombinat Polygraph Werner Lamberz VEB
Polygraph Leipzig Kombinat Veb
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 Kombinat Polygraph Werner Lamberz VEB, Polygraph Leipzig Kombinat Veb filed Critical Kombinat Polygraph Werner Lamberz VEB
Publication of GB8917897D0 publication Critical patent/GB8917897D0/en
Publication of GB2222880A publication Critical patent/GB2222880A/en
Application granted granted Critical
Publication of GB2222880B publication Critical patent/GB2222880B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0027—Devices for scanning originals, printing formes or the like for determining or presetting the ink supply
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
    • G01J3/513—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters having fixed filter-detector pairs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/5907—Densitometers
    • G01N2021/5915—Processing scan data in densitometry
    • G01N2021/5942—Processing scan data in densitometry for dot area ratio in printing applications
GB8917897A 1988-08-11 1989-08-04 Method of determining areal coverage of primary colours in measuring segments of multi-coloured print originals in an offset printing machine Expired - Fee Related GB2222880B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD88318856A DD274787A1 (en) 1988-08-11 1988-08-11 METHOD AND ARRANGEMENT FOR DETERMINING THE FLUID COVERAGE OF PRIMARY COLORS IN MEASUREMENT SEGMENTS OF MULTICOLORED PRINTING TEMPLATES OF AN OFFSET PRINTING MACHINE

Publications (3)

Publication Number Publication Date
GB8917897D0 GB8917897D0 (en) 1989-09-20
GB2222880A GB2222880A (en) 1990-03-21
GB2222880B true GB2222880B (en) 1993-04-07

Family

ID=5601682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8917897A Expired - Fee Related GB2222880B (en) 1988-08-11 1989-08-04 Method of determining areal coverage of primary colours in measuring segments of multi-coloured print originals in an offset printing machine

Country Status (5)

Country Link
JP (1) JPH02167438A (en)
CN (1) CN1040344A (en)
DD (1) DD274787A1 (en)
DE (1) DE3925012A1 (en)
GB (1) GB2222880B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4122794A1 (en) * 1991-07-10 1993-01-14 Roland Man Druckmasch METHOD FOR MONITORING AND REGULATING THE PRINTING PROCESS, ESPECIALLY ON OFFSET PRINTING MACHINES
JP2905049B2 (en) * 1993-08-04 1999-06-14 アルプス電気株式会社 Printing control method
DE4431270C2 (en) * 1993-10-21 1997-01-16 Roland Man Druckmasch Process for controlling the ink flow of an autotypically working printing machine
US20040213436A1 (en) * 2003-04-25 2004-10-28 Quad/Tech, Inc. System and method for measuring color on a printing press
DE102005041179A1 (en) * 2005-08-31 2007-03-01 Man Roland Druckmaschinen Ag Typographic process e.g. color registering, regulating method for printing machine, involves determining pre-press based target value from pre-press data and under consideration of data about characteristic of sensor
CN104597056B (en) * 2015-02-06 2017-04-19 北京中科纳新印刷技术有限公司 Method for detecting ink-jet printing ink dot positioning accuracy
CN104742516B (en) * 2015-03-12 2017-01-25 周广伟 High-power image dot coverage rate digital measuring method suitable for whole printing process
CN105572080B (en) * 2015-12-18 2018-03-09 河南理工大学 Contactless float glass tin surface automatic identification equipment and method
JP7400617B2 (en) * 2020-05-08 2023-12-19 コニカミノルタ株式会社 Coverage detection device, image forming device, coverage detection method, and coverage detection program

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1436638A (en) * 1972-05-13 1976-05-19 Morat Gmbh Franz Method of and device for identifying colours
GB2040038A (en) * 1978-11-28 1980-08-20 Hell R Dr Ing Gmbh Methods and circuit for the recognition of colours
EP0069572A1 (en) * 1981-07-06 1983-01-12 Philip Emanuel Tobias Method and apparatus for use in connection with the adjustment of printing presses
GB2115145A (en) * 1981-07-29 1983-09-01 Dainippon Printing Co Ltd Method and device for inspecting printed matter
EP0142469A1 (en) * 1983-11-04 1985-05-22 GRETAG Aktiengesellschaft Method and device for controlling the ink supply in an offset printing machine, and offset printing machine provided with such a device
GB2202939A (en) * 1987-03-25 1988-10-05 Kollmorgen Corp Densitometer method and system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1436638A (en) * 1972-05-13 1976-05-19 Morat Gmbh Franz Method of and device for identifying colours
GB2040038A (en) * 1978-11-28 1980-08-20 Hell R Dr Ing Gmbh Methods and circuit for the recognition of colours
EP0069572A1 (en) * 1981-07-06 1983-01-12 Philip Emanuel Tobias Method and apparatus for use in connection with the adjustment of printing presses
GB2115145A (en) * 1981-07-29 1983-09-01 Dainippon Printing Co Ltd Method and device for inspecting printed matter
EP0142469A1 (en) * 1983-11-04 1985-05-22 GRETAG Aktiengesellschaft Method and device for controlling the ink supply in an offset printing machine, and offset printing machine provided with such a device
EP0142470B1 (en) * 1983-11-04 1988-01-07 GRETAG Aktiengesellschaft Method and device for judging the printing quality of a printed object, preferably printed by an offset printing machine, and offset printing machine provided with such a device
GB2202939A (en) * 1987-03-25 1988-10-05 Kollmorgen Corp Densitometer method and system

Also Published As

Publication number Publication date
DD274787A1 (en) 1990-01-03
GB8917897D0 (en) 1989-09-20
DE3925012A1 (en) 1990-05-17
JPH02167438A (en) 1990-06-27
CN1040344A (en) 1990-03-14
GB2222880A (en) 1990-03-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020804