EP0316585A2 - Procédé de positionnement automatique des bandes de contrôle d'impression pour les machines densitométriques automatiques - Google Patents

Procédé de positionnement automatique des bandes de contrôle d'impression pour les machines densitométriques automatiques Download PDF

Info

Publication number: EP0316585A2
Authority: EP; European Patent Office
Prior art keywords: measuring; control strip; measuring head; pressure control; template
Prior art date: 1987-11-16
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

EP88117190A

Other languages

German (de)

English (en)

Other versions

EP0316585B1 (fr

EP0316585A3 (en

Inventor

Rolf Braun

Alfred Dorn

Joachim Müller

Franz Lampersberger

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.)

1987-11-16

Filing date

1988-10-15

Publication date

1989-05-24

1988-10-15 Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG

1988-10-15 Priority to AT88117190T priority Critical patent/ATE100760T1/de

1989-05-24 Publication of EP0316585A2 publication Critical patent/EP0316585A2/fr

1990-10-10 Publication of EP0316585A3 publication Critical patent/EP0316585A3/de

1994-01-26 Application granted granted Critical

1994-01-26 Publication of EP0316585B1 publication Critical patent/EP0316585B1/fr

2008-10-15 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

the invention relates to a method for automatically determining the position of the measuring fields of a print control strip for automatically measuring color light measuring systems, in which a measuring head can be moved in two mutually perpendicular directions X and Y and a printing template is previously brought into a defined Y position or on a Device for performing this method.
a method or a device of this type is known from EP-A 0 149 424.
the known method is very complex since it requires an information code in addition to the actual print control strip, which must be provided and increases the printing costs insofar as a paper edge that is not available for printing is necessary.
German patent application P 36 31 204 describes a method and a device in which the position of the print control strip is determined by direct scanning thereof.
a method for finding the position of print control strips in which a measuring head scans the measurement template in zigzag movements and searches for the print control strip. This procedure will not work if the print control strip is not completely present. This is always the case when a multi-color print control strip is not printed in all or only in one color. It is a matter of chance here whether the search optics runs over printed or unprinted sections of the print control strip.
Certain measuring heads are constructed in such a way that they rest on the artwork with a wheel or a skid. The fresh printing ink is smeared on the template by the zigzag movement, and the measuring head itself is also soiled with printing ink.
the invention has for its object to move to the position of a print control strip even by a measuring head when it is incomplete, i.e. running with interruptions.
a second or even further measurement template is positioned anywhere on the measuring system with respect to the X direction. Then the measuring head with the stored Y position moves to the first measuring field of the pressure control strip, stops and checks whether there is a Y deviation, makes a correction in the Y direction there if necessary, and starts the measurement in the X direction with this Y position .
the template can be created here with respect to the X direction.
the detection of the first measuring field and the positioning in the Y direction take place automatically and before the start of the measuring movement.
the only requirement for this procedure is that the position deviation in the original is not so large compared to the stored value that the search optics with all scanning beams lie outside the first measuring field.
the measuring head 1 is placed on a rail 5 on a control table 11 such that the first measuring field 8 of a print control strip 7 arranged on the print template 6 lies over the marking 9 of the rail.
the measuring head 1 of the system is then set in motion in the X direction. Due to a displacement sensor 2, the measuring head stops at the marking 9 and starts to move in the Y direction.
the measuring head 1 passes over the first measuring field 8.
the measuring signal picked up by the measuring head 1 is determined by the size of the measuring field 8 and can thus be recognized as such. Interference signals due to contamination etc. can thus be eliminated.
the Y position of the measuring field is saved.
the measuring head moves into its initial position in order to then start the measuring run in the correct Y position, as shown in FIG. 2.
the coordinates X1 and Y1 determine the start of the measuring run.
a microcomputer 10 controls the processes.

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)

EP88117190A 1987-11-16 1988-10-15 Procédé de positionnement automatique des bandes de contrôle d'impression pour les machines densitométriques automatiques Expired - Lifetime EP0316585B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT88117190T ATE100760T1 (de)	1987-11-16	1988-10-15	Verfahren zur automatischen positionsfindung von druckkontrollstreifen fuer automatisch messende farbdichtemessanlagen.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3738850		1987-11-16
DE19873738850 DE3738850A1 (de)	1987-11-16	1987-11-16	Verfahren zur automatischen positionsfindung von druckkontrollstreifen fuer automatisch messende farbdichtemessanlagen

Publications (3)

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

Family

ID=6340583

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88117190A Expired - Lifetime EP0316585B1 (fr)	1987-11-16	1988-10-15	Procédé de positionnement automatique des bandes de contrôle d'impression pour les machines densitométriques automatiques

Country Status (7)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2586552A (en) *	2018-05-25	2021-02-24	Envisics Ltd	Holographic light detection and ranging

Families Citing this family (10)

* 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 (ja) *	1991-10-31	1996-08-21	株式会社島津製作所	分光光度計の試料室
WO1996008703A1 (fr) *	1994-09-14	1996-03-21	X-Rite, Incorporated	Colorimetre a balayage
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 (de) *	1999-09-06	2001-02-08	Saechsisches Inst Fuer Die Dru	Verfahren und Vorrichtung zur Qualitätsdatenerfassung von Druckprodukten
JP2003311933A (ja) *	2002-04-24	2003-11-06	Dainippon Screen Mfg Co Ltd	パッチ測定装置およびそれを組み込んだ印刷装置
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 (ko)	2005-01-04	2006-03-03	엘지전자 주식회사	진공 청소기의 집진장치
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

Family Cites Families (7)

* 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
US4505589A (en) *	1981-04-03	1985-03-19	Gretag Aktiengesellschaft	Process and apparatus for the colorimetric analysis of printed material
DE3220803C2 (de) *	1982-06-03	1994-03-10	Heidelberger Druckmasch Ag	Farbdichtemeßanlage zur Ermittlung der Farbdichtewerte von Druckprodukten
EP0114914B1 (fr) *	1983-01-29	1987-04-22	M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft	Dispositif pour détecter et évaluer des bandes de mesure colorimétriques sur une feuille d'impression
DE3324951A1 (de) *	1983-07-11	1985-01-24	M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach	Vorrichtung zum ermitteln und auswerten von farbmessfeldern auf einem auf einem messtisch liegenden druckbogen mit einem densitometer
ATE58336T1 (de) *	1983-12-19	1990-11-15	Gretag Ag	Verfahren, vorrichtung und farbmessstreifen fuer die druckqualitaetsbeurteilung.
DE3631204C2 (de) *	1986-09-13	1993-11-25	Roland Man Druckmasch	Vorrichtung an Druckmaschinen zur densitometrischen Erfassung eines Meßfeldstreifens

1987
- 1987-11-16 DE DE19873738850 patent/DE3738850A1/de active Granted
1988
- 1988-10-15 DE DE88117190T patent/DE3887455D1/de not_active Expired - Lifetime
- 1988-10-15 EP EP88117190A patent/EP0316585B1/fr not_active Expired - Lifetime
- 1988-10-15 ES ES88117190T patent/ES2049237T3/es not_active Expired - Lifetime
- 1988-10-15 AT AT88117190T patent/ATE100760T1/de not_active IP Right Cessation
- 1988-10-27 BR BR8805521A patent/BR8805521A/pt not_active IP Right Cessation
- 1988-11-08 US US07/268,744 patent/US4963028A/en not_active Expired - Lifetime
- 1988-11-16 JP JP63287888A patent/JP2513812B2/ja not_active Expired - Lifetime

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2586552A (en) *	2018-05-25	2021-02-24	Envisics Ltd	Holographic light detection and ranging
GB2586552B (en) *	2018-05-25	2022-12-07	Envisics Ltd	Holographic light detection and ranging

Also Published As

Publication number	Publication date
ATE100760T1 (de)	1994-02-15
EP0316585B1 (fr)	1994-01-26
DE3738850A1 (de)	1989-05-24
BR8805521A (pt)	1989-07-04
ES2049237T3 (es)	1994-04-16
US4963028A (en)	1990-10-16
DE3887455D1 (de)	1994-03-10
JP2513812B2 (ja)	1996-07-03
EP0316585A3 (en)	1990-10-10
JPH01160644A (ja)	1989-06-23
DE3738850C2 (fr)	1991-05-29

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