EP0316585A3 - Method for automatically positioning printing test strips for automatic densitometers - Google Patents

Method for automatically positioning printing test strips for automatic densitometers Download PDF

Info

Publication number
EP0316585A3
EP0316585A3 EP19880117190 EP88117190A EP0316585A3 EP 0316585 A3 EP0316585 A3 EP 0316585A3 EP 19880117190 EP19880117190 EP 19880117190 EP 88117190 A EP88117190 A EP 88117190A EP 0316585 A3 EP0316585 A3 EP 0316585A3
Authority
EP
European Patent Office
Prior art keywords
printing test
measurement
test strips
automatic
automatically positioning
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.)
Granted
Application number
EP19880117190
Other languages
German (de)
Other versions
EP0316585A2 (en
EP0316585B1 (en
Inventor
Rolf Braun
Alfred Dorn
Joachim Muller
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT88117190T priority Critical patent/ATE100760T1/en
Publication of EP0316585A2 publication Critical patent/EP0316585A2/en
Publication of EP0316585A3 publication Critical patent/EP0316585A3/en
Application granted granted Critical
Publication of EP0316585B1 publication Critical patent/EP0316585B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

In a method and device for the automatic positioning of a printing test strip for automatic densitometer measurement equipment on printing machines, further automatisation of the measurement procedure is accomplished by means of a search operation by the measuring head before the measurement operation. In order to ensure that the measurement head travels reliably over a measurement field of the printing test strip, the sheet is positioned on the inspection table so as to coincide with register marks on the measuring table.
EP88117190A 1987-11-16 1988-10-15 Method for automatically positioning printing test strips for automatic densitometers Expired - Lifetime EP0316585B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88117190T ATE100760T1 (en) 1987-11-16 1988-10-15 PROCEDURE FOR AUTOMATIC POSITIONING OF PRINT CONTROL STRIPS FOR AUTOMATIC MEASURING COLOR DENSITY MEASURING SYSTEMS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3738850 1987-11-16
DE19873738850 DE3738850A1 (en) 1987-11-16 1987-11-16 METHOD FOR THE AUTOMATIC POSITION DETECTION OF PRINT CONTROL STRIPS FOR AUTOMATICALLY MEASURING COLOR DENSITY MEASUREMENT SYSTEMS

Publications (3)

Publication Number Publication Date
EP0316585A2 EP0316585A2 (en) 1989-05-24
EP0316585A3 true EP0316585A3 (en) 1990-10-10
EP0316585B1 EP0316585B1 (en) 1994-01-26

Family

ID=6340583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117190A Expired - Lifetime EP0316585B1 (en) 1987-11-16 1988-10-15 Method for automatically positioning printing test strips for automatic densitometers

Country Status (7)

Country Link
US (1) US4963028A (en)
EP (1) EP0316585B1 (en)
JP (1) JP2513812B2 (en)
AT (1) ATE100760T1 (en)
BR (1) BR8805521A (en)
DE (2) DE3738850A1 (en)
ES (1) ES2049237T3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208655A (en) * 1991-08-07 1993-05-04 Graphics Microsystems, Inc. Method and apparatus for automatic densitometer alignment
JP2526454B2 (en) * 1991-10-31 1996-08-21 株式会社島津製作所 Spectrophotometer sample chamber
WO1996008703A1 (en) * 1994-09-14 1996-03-21 X-Rite, Incorporated Scanning colorimeter
US5774225A (en) 1996-03-27 1998-06-30 Advanced Vision Technology, Ltd. System and method for color measurement and control on-press during printing
DE19942468C1 (en) * 1999-09-06 2001-02-08 Saechsisches Inst Fuer Die Dru Printed product quality control data detection method uses measuring head with several measuring sensors for scanning measuring fields printed simultaneous with printed product on opposite sides of latter
JP2003311933A (en) * 2002-04-24 2003-11-06 Dainippon Screen Mfg Co Ltd Patch measuring device and printing device incorporating the same
US7502116B2 (en) * 2003-09-09 2009-03-10 Hewlett-Packard Development Company, L.P. Densitometers and methods for measuring optical density
US7345763B2 (en) * 2004-04-30 2008-03-18 X-Rite, Inc. Method for operating a color measurement system
KR100556442B1 (en) 2005-01-04 2006-03-03 엘지전자 주식회사 Dust collector for vacuum cleaner
US8717647B2 (en) * 2005-10-13 2014-05-06 Hewlett-Packard Development Company, L.P. Imaging methods, imaging device calibration methods, imaging devices, and hard imaging device sensor assemblies
GB2586552B (en) * 2018-05-25 2022-12-07 Envisics Ltd Holographic light detection and ranging

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064024A1 (en) * 1981-04-03 1982-11-03 GRETAG Aktiengesellschaft Method and device for the colorimetric analysis of a printed colour test scale
EP0149424A2 (en) * 1983-12-19 1985-07-24 GRETAG Aktiengesellschaft Method and device for determining the quality of prints, and colour test strip for said determination
US4660158A (en) * 1983-07-11 1987-04-21 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Arrangement for determination and evaluation of ink measuring strips on a printed sheet on a measuring table by a densitometer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4289405A (en) * 1978-10-13 1981-09-15 Tobias Philip E Color monitoring system for use in creating colored displays
DE3220803C2 (en) * 1982-06-03 1994-03-10 Heidelberger Druckmasch Ag Color density measuring system for determining the color density values of printed products
EP0114914B1 (en) * 1983-01-29 1987-04-22 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Device for detecting and evaluating colour control strips on a printing sheet
DE3631204C2 (en) * 1986-09-13 1993-11-25 Roland Man Druckmasch Device on printing press for densitometric detection of a measuring field strip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064024A1 (en) * 1981-04-03 1982-11-03 GRETAG Aktiengesellschaft Method and device for the colorimetric analysis of a printed colour test scale
US4660158A (en) * 1983-07-11 1987-04-21 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Arrangement for determination and evaluation of ink measuring strips on a printed sheet on a measuring table by a densitometer
EP0149424A2 (en) * 1983-12-19 1985-07-24 GRETAG Aktiengesellschaft Method and device for determining the quality of prints, and colour test strip for said determination

Also Published As

Publication number Publication date
ES2049237T3 (en) 1994-04-16
US4963028A (en) 1990-10-16
JPH01160644A (en) 1989-06-23
BR8805521A (en) 1989-07-04
EP0316585A2 (en) 1989-05-24
JP2513812B2 (en) 1996-07-03
ATE100760T1 (en) 1994-02-15
DE3738850C2 (en) 1991-05-29
EP0316585B1 (en) 1994-01-26
DE3887455D1 (en) 1994-03-10
DE3738850A1 (en) 1989-05-24

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