EP1958774A3 - Method for controlling printing processes - Google Patents

Method for controlling printing processes Download PDF

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Publication number
EP1958774A3
EP1958774A3 EP08002539A EP08002539A EP1958774A3 EP 1958774 A3 EP1958774 A3 EP 1958774A3 EP 08002539 A EP08002539 A EP 08002539A EP 08002539 A EP08002539 A EP 08002539A EP 1958774 A3 EP1958774 A3 EP 1958774A3
Authority
EP
European Patent Office
Prior art keywords
actual value
control
determined
value
color
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.)
Withdrawn
Application number
EP08002539A
Other languages
German (de)
French (fr)
Other versions
EP1958774A2 (en
Inventor
Alfons Schuster
Michael Schönert
Christian Echerer
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
Manroland 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 Manroland AG filed Critical Manroland AG
Publication of EP1958774A2 publication Critical patent/EP1958774A2/en
Publication of EP1958774A3 publication Critical patent/EP1958774A3/en
Withdrawn legal-status Critical Current

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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0081—Devices for scanning register marks

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Regelung von drucktechnischen Prozessen, insbesondere zur Schnittregister- oder Farbregisterregelung oder zur Messortbestimmung bei der Farbdichteregelung oder Farbortregelung an einer Druckmaschine, wobei zur Ermittlung mindestes eines Istwerts ein Messort auf einem Bedruckstoff mit Hilfe mindestens eines Sensors vermessen wird, wobei der oder jeder gemessene Istwert mit jeweils einem druckvorstufebasierten Sollwert verglichen wird, und wobei auf Basis mindestens einer aus dem oder jedem Istwert und dem jeweiligen Sollwert ermittelten Regelabweichung mindestens ein Stellsignal für den zu regelnden drucktechnischen Prozess ermittelt wird. Erfindungsgemäß wird die oder jede Regelabweichung derart ermittelt, dass zuerst der Istwert und der Sollwert bei reduzierter Auflösung in einem Korrelationsverfahren verrechnet werden, und dass anschließend im Bereich des Maximums der Korrelation zur Subpixelapproximation eine Interpolation durchgeführt wird.

Figure imgaf001
The invention relates to a method for controlling printing processes, in particular for Schnittregister- or color register control or for measuring location in the color density control or color location control on a printing press, wherein for determining at least one actual value, a measuring location on a substrate by means of at least one sensor is measured, the or each measured actual value is in each case compared with a pressure-bias-based setpoint value, and based on at least one control deviation determined from the or each actual value and the respective setpoint, at least one actuating signal for the pressure-technical process to be controlled is determined. According to the invention, the or each system deviation is determined in such a way that the actual value and the desired value are first offset at reduced resolution in a correlation method, and then an interpolation is performed in the region of the maximum of the correlation to the subpixel approximation.
Figure imgaf001
EP08002539A 2007-02-15 2008-02-12 Method for controlling printing processes Withdrawn EP1958774A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007007447A DE102007007447A1 (en) 2007-02-15 2007-02-15 Method for controlling printing processes

Publications (2)

Publication Number Publication Date
EP1958774A2 EP1958774A2 (en) 2008-08-20
EP1958774A3 true EP1958774A3 (en) 2011-06-01

Family

ID=39472103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08002539A Withdrawn EP1958774A3 (en) 2007-02-15 2008-02-12 Method for controlling printing processes

Country Status (2)

Country Link
EP (1) EP1958774A3 (en)
DE (1) DE102007007447A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008052175A1 (en) * 2008-10-17 2010-04-22 Siemens Aktiengesellschaft Method for data transmission in process devices
DE102008044154A1 (en) * 2008-11-28 2010-06-24 Koenig & Bauer Aktiengesellschaft Method for adjusting diagonal register or diagonal register mark of rotary printing press, involves providing cylinder, transfer cylinder, impression cylinder and substrate between transfer cylinder and impression cylinder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4237004C2 (en) * 1992-11-02 1996-07-04 Mohndruck Reinhard Mohn Ohg Process for online measurement of the coloring of printed products
DE10218068A1 (en) * 2001-05-23 2002-11-28 Heidelberger Druckmasch Ag Setting device for color calibration or processes calibration curves in printing machine has computer in press stage which determines and transmits image structure test pattern
US20070019216A1 (en) * 2005-07-20 2007-01-25 Estman Kodak Company Adaptive printing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5967050A (en) * 1998-10-02 1999-10-19 Quad/Tech, Inc. Markless color control in a printing press
DE19910835C1 (en) * 1999-03-11 2000-09-07 Innomess Elektronik Gmbh Regulating cutting position on roller rotation printing machine medium path involves correlating integral intensity values from two sensors to determine offset for resetting cutting index
JP4598887B2 (en) * 2001-09-28 2010-12-15 株式会社キーエンス Pattern matching method using pyramid structure search, image detection circuit, image processing program, and computer-readable storage medium
DE10149158B4 (en) 2001-10-04 2010-07-22 Wifag Maschinenfabrik Ag Method and device for determining the position of a printed paper web
DE102004028056A1 (en) * 2004-04-22 2005-11-17 Maschinenfabrik Wifag Device and method for detecting register errors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4237004C2 (en) * 1992-11-02 1996-07-04 Mohndruck Reinhard Mohn Ohg Process for online measurement of the coloring of printed products
DE10218068A1 (en) * 2001-05-23 2002-11-28 Heidelberger Druckmasch Ag Setting device for color calibration or processes calibration curves in printing machine has computer in press stage which determines and transmits image structure test pattern
US20070019216A1 (en) * 2005-07-20 2007-01-25 Estman Kodak Company Adaptive printing

Also Published As

Publication number Publication date
DE102007007447A1 (en) 2008-08-28
EP1958774A2 (en) 2008-08-20

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