EP0987110B1 - Process for assessing the quality of processed material - Google Patents

Process for assessing the quality of processed material Download PDF

Info

Publication number
EP0987110B1
EP0987110B1 EP99118436A EP99118436A EP0987110B1 EP 0987110 B1 EP0987110 B1 EP 0987110B1 EP 99118436 A EP99118436 A EP 99118436A EP 99118436 A EP99118436 A EP 99118436A EP 0987110 B1 EP0987110 B1 EP 0987110B1
Authority
EP
European Patent Office
Prior art keywords
counter
error
sheets
count
inspected
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 - Lifetime
Application number
EP99118436A
Other languages
German (de)
French (fr)
Other versions
EP0987110A1 (en
Inventor
Gerald Josef Reinhard
Johannes Georg Schaede
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0987110A1 publication Critical patent/EP0987110A1/en
Application granted granted Critical
Publication of EP0987110B1 publication Critical patent/EP0987110B1/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

Definitions

  • the invention relates to methods for qualitative Evaluation of processed material according to the Preamble of claim 1.
  • DE-OS 23 38 849 describes a method for Finding defects in rolled steel surfaces. there those errors are identified that a certain Show periodicity.
  • DE 41 29 126 A1 discloses a method for Detection of defects in a textile web. The number of consecutive errors added. If a faultless product occurs the counter reading is reset to zero.
  • the invention has for its object a method for the qualitative assessment of processed material to accomplish.
  • a processing machine for example a rotary printing machine, is provided with a device for the qualitative assessment of processed material.
  • This material can be printed sheets or webs, for example.
  • sheets of paper are printed using the steel engraving process and then assessed qualitatively inline.
  • the rotary printing press can be, for example, a steel engraving printing press known from EP 04 06 157 B1.
  • picture elements of a sheet to be checked are compared with stored picture elements of so-called "master" sheets. If one or more measured values lie outside a predetermined tolerance of the corresponding measured values of the "master” sheets, an error is detected. This error can now be indicated optically or acoustically by means of a first warning signal.
  • the corresponding sheet with an error can also be marked or sorted out.
  • a counter is fed a signal for the defective sheet, whereby the counter reading of a counting unit, e.g. B. is increased by one. If one or more defective sheets follow directly on the defective sheet, the counter reading of the counter is increased by one for each defective sheet. The counter only adds the counter reading by one counter unit, e.g. B. one up. If an error-free sheet is detected after a defective sheet, a signal for the error-free sheet is fed to the counter. B. one is reduced. Now follow more error-free
  • the counter reading is reduced by one for each error-free sheet. If the counter reading has reached a lower limit, for example the value 0, no further downward counting takes place.
  • the counter reading is thus changed step by step according to the number of inspected, faulty and error-free sheets. This procedure takes place within a range of the counter reading from a lower limit, e.g. B. zero, up to a definable (selectable), upper limit of the counter reading. If this limit value is reached, a second warning signal is triggered and, for example, fed to the machine control. This signal can, for example, cause the speed of the rotary printing press to be reduced or the rotary printing press to be switched off.
  • This procedure is based on the total number of inspecting sheet applicable.
  • the sheets to be inspected are often processed in machines in which cyclical errors can occur. This is the case, for example, when the sheets to be inspected are printed using a rotary printing press known from EP 04 06 157 B1.
  • This rotary printing press has a plate cylinder which is provided with three printing plates, each having an identical printing form. The non-printing areas of these printing plates are cleaned by a common wiper device after inking.
  • This wiping device consists, among other things, of a wiping cylinder operated under pressure. If, for example, one of the three pressure plates is damaged or is partially a little lower, the wiper device does not completely clean this area. Therefore, every third sheet of all sheets produced would have a toning area. Toning areas can also only occur for a limited time, for example by slugs which are removed by the wiping device.
  • each printing plate is assigned its own counter. This counter is synchronized with the printing press and the inspection device in such a way that a signal of an error-free or defective sheet printed on a specific printing plate is fed to the counter assigned to this printing plate. Each counter assigned to a printing plate is therefore only supplied with signals from the sheets printed and inspected by means of this associated printing plate.
  • This particular counter can work according to the following simple principle: If a faulty sheet is detected, a signal is fed to the respective counter, whereby the counter reading is increased by one counting unit, e.g. B. one is increased. This is done for successive sheets up to a preselectable limit. However, by detecting a faultless sheet, the counter reading is reset to zero and only when the faulty sheet occurs again does the counting start. If this limit value is reached, a second warning signal is issued, which is forwarded, for example, to the machine control for triggering further processes.
  • one counting unit e.g. B. one is increased. This is done for successive sheets up to a preselectable limit.
  • the counter reading is reset to zero and only when the faulty sheet occurs again does the counting start. If this limit value is reached, a second warning signal is issued, which is forwarded, for example, to the machine control for triggering further processes.
  • the method described at the outset is also used for counting these cyclically occurring errors. Accordingly, the counting up and down is carried out step by step according to the number of faulty and faultless sheets.
  • This counting of cyclical errors is not just that described example of plate cylinders with several Printing plates limited, taking cyclical errors successive sheets or reports of the web can be detected. There are also other use cases possible. Relevant possible sources of error are that generate a cyclical error, at least one own counter assigned.
  • Step size not equal to one it is also possible to count in other counter units or step sizes (i.e. Step size not equal to one) and with other limit values perform.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
  • Facsimiles In General (AREA)

Description

Die Erfindung betrifft Verfahren zur qualitativen Beurteilung von bearbeitetem Material gemäß dem Oberbegriff des Anspruches 1.The invention relates to methods for qualitative Evaluation of processed material according to the Preamble of claim 1.

Die DE-OS 23 38 849 beschreibt ein Verfahren zum Auffinden von Fehlern in Walzstahloberflächen. Dabei werden jene Fehler identifiziert, die eine bestimmte Periodizität aufweisen.DE-OS 23 38 849 describes a method for Finding defects in rolled steel surfaces. there those errors are identified that a certain Show periodicity.

Die DE 41 29 126 A1 offenbart ein Verfahren zum Feststellen von Fehlern in einer textilen Warenbahn. Dabei wird die Anzahl aufeinanderfolgender Fehler addiert. Bei Auftreten eines fehlerfreien Produktes wird der Zählerstand auf Null zurückgesetzt.DE 41 29 126 A1 discloses a method for Detection of defects in a textile web. The number of consecutive errors added. If a faultless product occurs the counter reading is reset to zero.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur qualitativen Beurteilung von bearbeitetem Material zu schaffen.The invention has for its object a method for the qualitative assessment of processed material to accomplish.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teiles des Anspruches 1.This object is achieved by the features of the characterizing part of claim 1.

In vorteilhafter Weise werden mittels der erfindungsgemäßen Verfahren Fehler des zu inspizierenden Materials systematisch erfaßt. Durch die gezielte Erfassung auftretender Fehler und Zuordnung zu einer zugehörigen Fehlerquelle wird die Ortung eines Fehlers erleichtert. Makulatur und Stillstandszeiten der Verarbeitungsmaschine werden reduziert. Insbesondere bei Rotationsdruckmaschinen (siehe EP 04 06 157 B1) mit einem eine Mehrzahl von identischen Druckformen aufweisenden Formzylinder ist damit eine eindeutige Zuordnung von Fehlern zu der fehlererzeugenden Druckform möglich. Advantageously, by means of method according to the invention error of the inspected Systematically recorded materials. Through the targeted Detection of errors and assignment to a The associated source of error is the location of an error facilitated. Waste and downtimes of the Processing machine are reduced. Especially with rotary printing presses (see EP 04 06 157 B1) with a plurality of identical ones Forme cylinder having printing forms is therefore one clear allocation of errors to the error-generating printing form possible.

Durch die Auf- und Abwärtszählung entsprechend der Anzahl von aufeinanderfolgenden fehlerbehafteten und fehlerfreien Bildbereichen wird eine sichere Fehlerauswertung erreicht.
Denn insbesondere bei Fehlern infolge einer unzureichenden Wischung der eingefärbten Druckplatten in einer Stahlstichdruckmaschine kommt es häufig vor, daß auf eine Mehrzahl fehlerbehafteter Bogen nur ein fehlerfreier Bogen folgt und sich daran wieder eine Mehrzahl von fehlerbehafteten Bogen anschließt. Hat nun in diesem Fall die Anzahl der fehlerbehafteten Bogen nahezu einen oberen Grenzwert erreicht, wird der Zählerstand infolge dieses einen fehlerfreien Bogens nur um eins reduziert und durch die nachfolgenden fehlerbehafteten Bogen wird der Zählerstand wieder erhöht. Der Grenzwert des Zählerstandes wird demzufolge schnell erreicht und ein Warnsignal ausgelöst. So wird unnötige Makulatur reduziert.By counting up and down according to the number of successive error-prone and error-free image areas, a reliable error evaluation is achieved.
Because, particularly in the case of errors due to insufficient wiping of the inked printing plates in a steel engraving printing machine, it often happens that a plurality of defective sheets is followed by only one defect-free sheet and is followed by a plurality of defective sheets. If in this case the number of faulty sheets has almost reached an upper limit, the counter reading is only reduced by one as a result of this one fault-free sheet and the counter reading is increased again by the subsequent faulty sheets. The limit value of the counter reading is therefore reached quickly and a warning signal is triggered. This reduces unnecessary waste.

Das erfindungsgemäße Verfahren wird im folgenden näher beschrieben.The process according to the invention is described in more detail below described.

Eine Verarbeitungsmaschine, beispielsweise eine Rotationsdruckmaschine, ist mit einer Vorrichtung zum qualitativen Beurteilen von bearbeitetem Material versehen. Bei diesem Material kann es sich beispielsweise um bedruckte Bogen oder Bahnen handeln. Im vorliegenden Beispiel werden Bogen aus Papier im Stahlstichverfahren bedruckt und anschließend inline qualitativ beurteilt.
Bei der Rotationsdruckmaschine kann es sich beispielsweise um eine aus der EP 04 06 157 B1 bekannte Stahlstichdruckmaschine handeln.A processing machine, for example a rotary printing machine, is provided with a device for the qualitative assessment of processed material. This material can be printed sheets or webs, for example. In the present example, sheets of paper are printed using the steel engraving process and then assessed qualitatively inline.
The rotary printing press can be, for example, a steel engraving printing press known from EP 04 06 157 B1.

Ein Verfahren zur Beurteilung dieser Bogen ist beispielsweise aus der DE 42 06 366 A1 bekannt.One method of assessing this arch is known for example from DE 42 06 366 A1.

Nach diesem Verfahren werden Bildelemente eines zu prüfenden Bogens mit gespeicherten Bildelementen sogenannter "Master"-Bogen verglichen. Liegt ein oder liegen mehrere Meßwerte außerhalb einer vorgegebenen Toleranz der entsprechenden Meßwerte der "Master"-Bogen wird ein Fehler detektiert. Dieser Fehler kann nun optisch oder akustisch mittels eines ersten Warnsignals angezeigt werden. Auch kann der entsprechende, mit einen Fehler behaftete Bogen markiert oder aussortiert werden. Einem Zähler wird ein Signal für den fehlerbehafteten Bogen zugeführt, wodurch der Zählerstand einer Zähleinheit, z. B. um eins erhöht wird. Folgt nun direkt auf den fehlerbehafteten Bogen ein oder mehrere fehlerbehaftete Bogen wird der Zählerstand des Zählers für jeden fehlerbehafteten Bogen um eins erhöht. Der Zähler addiert nur bei direkt nacheinander auftretenden Fehlern den Zählerstand um jeweils eine Zählereinheit, z. B. eins nach oben.
Wird nach einem fehlerbehafteten Bogen ein fehlerfreier Bogen detektiert, wird dem Zähler ein Signal für den fehlerfreien Bogen zugeführt, wodurch der Zählerstand schrittweise um eine Zähleinheit, z. B. eins verringert wird. Folgen nun weitere fehlerfreie According to this method, picture elements of a sheet to be checked are compared with stored picture elements of so-called "master" sheets. If one or more measured values lie outside a predetermined tolerance of the corresponding measured values of the "master" sheets, an error is detected. This error can now be indicated optically or acoustically by means of a first warning signal. The corresponding sheet with an error can also be marked or sorted out. A counter is fed a signal for the defective sheet, whereby the counter reading of a counting unit, e.g. B. is increased by one. If one or more defective sheets follow directly on the defective sheet, the counter reading of the counter is increased by one for each defective sheet. The counter only adds the counter reading by one counter unit, e.g. B. one up.
If an error-free sheet is detected after a defective sheet, a signal for the error-free sheet is fed to the counter. B. one is reduced. Now follow more error-free

Bogen direkt hintereinander, wird der Zählerstand für jeden fehlerfreien Bogen um jeweils eins verringert. Hat der Zählerstand einen unteren Grenzwert, z.B. den Wert 0, erreicht, erfolgt keine weitere Abwärtszählung.
Der Zählerstand wird also entsprechend der Anzahl der inspizierten, fehlerbehafteten und fehlerfreien Bogen schrittweise verändert. Dieses Vorgehensweise erfolgt innerhalb eines Bereiches des Zählerstandes von einem unteren Grenzwert, z. B. null, bis zu einem festlegbaren (wählbaren), oberen Grenzwert des Zählerstandes.
Wird dieser Grenzwert erreicht, wird ein zweites Warnsignal ausgelöst und beispielsweise der Maschinensteuerung zugeführt. Dieses Signal kann beispielsweise bewirken, daß die Geschwindigkeit der Rotationsdruckmaschine reduziert oder die Rotationsdruckmaschine abgestellt wird.Sheets one after the other, the counter reading is reduced by one for each error-free sheet. If the counter reading has reached a lower limit, for example the value 0, no further downward counting takes place.
The counter reading is thus changed step by step according to the number of inspected, faulty and error-free sheets. This procedure takes place within a range of the counter reading from a lower limit, e.g. B. zero, up to a definable (selectable), upper limit of the counter reading.
If this limit value is reached, a second warning signal is triggered and, for example, fed to the machine control. This signal can, for example, cause the speed of the rotary printing press to be reduced or the rotary printing press to be switched off.

Dieses Verfahren ist auf die gesamte Anzahl der zu inspizierenden Bogen anwendbar.This procedure is based on the total number of inspecting sheet applicable.

Häufig werden die zu inspizierenden Bogen in Maschinen bearbeitet, in denen zyklische Fehler auftreten können. Dies ist beispielsweise dann der Fall, wenn die zu inspizierenden Bogen mittels einer aus der EP 04 06 157 B1 bekannten Rotationsdruckmaschine bedruckt werden.
Diese Rotationsdruckmaschine weist einen Plattenzylinder auf, der mit drei, jeweils eine identische Druckform aufweisenden Druckplatten versehen ist. Die nichtdruckenden Bereiche dieser Druckplatten werden von einer gemeinsamen Wischeinrichtung nach dem Einfärben von Druckfarbe gereinigt. Diese Wischeinrichtung besteht u.a. aus einem unter Druck angestellten Wischzylinder. Ist nun eine der drei Druckplatten beispielsweise beschädigt oder liegt teilweise etwas tiefer, reinigt die Wischeinrichtung diesen Bereich nicht vollständig. Daher würde jeder dritte Bogen aller produzierten Bogen einen tonenden Bereich aufweisen.
Tonende Bereiche können aber auch nur zeitlich begrenzt auftreten, beispielsweise durch Butzen, die durch die Wischeinrichtung wieder entfernt werden.The sheets to be inspected are often processed in machines in which cyclical errors can occur. This is the case, for example, when the sheets to be inspected are printed using a rotary printing press known from EP 04 06 157 B1.
This rotary printing press has a plate cylinder which is provided with three printing plates, each having an identical printing form. The non-printing areas of these printing plates are cleaned by a common wiper device after inking. This wiping device consists, among other things, of a wiping cylinder operated under pressure. If, for example, one of the three pressure plates is damaged or is partially a little lower, the wiper device does not completely clean this area. Therefore, every third sheet of all sheets produced would have a toning area.
Toning areas can also only occur for a limited time, for example by slugs which are removed by the wiping device.

In diesem Beispiel ist jeder Druckplatte ein eigener Zähler zugeordnet. Dieser Zähler ist mit der Druckmaschine und der Inspektionseinrichtung derart synchronisiert, daß ein Signal eines fehlerfreien bzw. fehlerbehafteten, eines mittels einer bestimmten Druckplatte bedruckten Bogens dem dieser Druckplatte zugeordneten Zähler zugeführt wird.
Jedem einer Druckplatte zugeordneten Zähler werden also nur Signale der mittels dieser zugehörigen Druckplatte bedruckten und inspizierten Bogen zugeführt.In this example, each printing plate is assigned its own counter. This counter is synchronized with the printing press and the inspection device in such a way that a signal of an error-free or defective sheet printed on a specific printing plate is fed to the counter assigned to this printing plate.
Each counter assigned to a printing plate is therefore only supplied with signals from the sheets printed and inspected by means of this associated printing plate.

Dieser jeweilige Zähler kann nach folgenden einfachen Prinzip arbeiten:
Wird ein fehlerbehafteter Bogen detektiert, wird dem jeweiligen Zähler ein Signal zugeführt, wodurch der Zählerstand um eine Zähleinheit, z. B. eins erhöht wird. Dies erfolgt bei aufeinander folgenden Bogen bis zu einem vorwählbaren Grenzwert. Allerdings wird durch Detektieren eines fehlerfreien Bogens der Zählerstand auf NulL zurückgesetzt und erst bei erneutem Auftreten von fehlerbehafteten Bogen beginnt ein Hochzählen des Zählerstandes. Wird dieser Grenzwert erreicht, erfolgt ein zweites Warnsignal, das beispielsweise an die Maschinensteuerung zur Auslösung weiterer Vorgänge weitergeleitet wird.This particular counter can work according to the following simple principle:
If a faulty sheet is detected, a signal is fed to the respective counter, whereby the counter reading is increased by one counting unit, e.g. B. one is increased. This is done for successive sheets up to a preselectable limit. However, by detecting a faultless sheet, the counter reading is reset to zero and only when the faulty sheet occurs again does the counting start. If this limit value is reached, a second warning signal is issued, which is forwarded, for example, to the machine control for triggering further processes.

In besonders vorteilhafter Weise wird das eingangs beschriebene Verfahren auch für die Zählweise dieser zyklisch auftretenden Fehler verwendet. Demnach erfolgt das schrittweise Auf- und Abwärtszählen des Zählerstandes entsprechend der jeweiligen Anzahl der fehlerbehafteten und fehlerfreien Bogen.In a particularly advantageous manner, the method described at the outset is also used for counting these cyclically occurring errors. Accordingly, the counting up and down is carried out step by step according to the number of faulty and faultless sheets.

Dieses Zählen zyklischer Fehler ist nicht nur auf das beschriebene Beispiel von Plattenzylindern mit mehreren Druckplatten beschränkt, wobei die zyklischen Fehler aufeinander folgender Bogen oder Rapporte der Bahn detektiert werden. Auch sind andere Anwendungsfälle möglich. Dabei sind relevanten möglichen Fehlerquellen, die einen zyklischen Fehler erzeugen, mindestens ein eigener Zähler zugeordnet.This counting of cyclical errors is not just that described example of plate cylinders with several Printing plates limited, taking cyclical errors successive sheets or reports of the web can be detected. There are also other use cases possible. Relevant possible sources of error are that generate a cyclical error, at least one own counter assigned.

Beispielsweise können auch innerhalb eines Bogens Teilbereiche, d. h. Fenster festgelegt werden, die einen eigenen Zähler zugeordnet bekommen. For example, inside an arc Subareas, d. H. Windows are set that one get your own meter assigned.

Selbstverständlich ist es auch möglich, die Zählung in anderen Zählereinheiten oder Schrittgrößen (d. h. Schrittgröße ungleich eins) und mit anderen Grenzwerten durchzuführen.Of course it is also possible to count in other counter units or step sizes (i.e. Step size not equal to one) and with other limit values perform.

Claims (5)

  1. Method for qualitative assessment of printed material by means of at least one photoelectric sensor, and by means of an evaluation device which interacts with this sensor, characterized in that an image area of the inspected material is detected by being associated with a counter, in that the count of the counter counts upwards and downwards when the inspected image area is faulty and has no faults.
  2. Method according to Claim 1, characterized in that the count of the counter is incremented by one counting unit when the inspected image area has a fault, and in that the count of the counter is decremented by one counting unit when there are no faults in the inspected area.
  3. Method according to one of Claims 1 or 2, characterized in that the count is decremented only as far as a lower limit value.
  4. Method according to one of Claims 1 or 2, characterized in that a signal is triggered when the count reaches an upper limit value.
  5. Method according to Claim 1, characterized in that an entire sheet or a period of a web is defined as the image area.
EP99118436A 1996-04-02 1997-04-01 Process for assessing the quality of processed material Expired - Lifetime EP0987110B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19613083A DE19613083A1 (en) 1996-04-02 1996-04-02 Procedure for the qualitative assessment of processed material
DE19613083 1996-04-02
EP97920565A EP0892722B1 (en) 1996-04-02 1997-04-01 Process for assessing the quality of processed material

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97920565A Division EP0892722B1 (en) 1996-04-02 1997-04-01 Process for assessing the quality of processed material

Publications (2)

Publication Number Publication Date
EP0987110A1 EP0987110A1 (en) 2000-03-22
EP0987110B1 true EP0987110B1 (en) 2002-01-16

Family

ID=7790212

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97920565A Expired - Lifetime EP0892722B1 (en) 1996-04-02 1997-04-01 Process for assessing the quality of processed material
EP99118436A Expired - Lifetime EP0987110B1 (en) 1996-04-02 1997-04-01 Process for assessing the quality of processed material

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97920565A Expired - Lifetime EP0892722B1 (en) 1996-04-02 1997-04-01 Process for assessing the quality of processed material

Country Status (6)

Country Link
US (1) US6333987B1 (en)
EP (2) EP0892722B1 (en)
JP (1) JPH11507305A (en)
DE (3) DE19613083A1 (en)
ES (2) ES2170563T3 (en)
WO (1) WO1997036749A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10049752A1 (en) 1999-10-11 2001-05-10 Heidelberger Druckmasch Ag Procedure for exploring the precision of marking and placing edges, folds or cuts on printed samples, comprises use of detector such as CCD camera and hatched field to find jumps in contrast
US7656930B2 (en) * 2001-09-10 2010-02-02 Digimarc Corporation Assessing quality of service using digital watermark information
US20020146120A1 (en) * 2001-04-05 2002-10-10 Hugh Anglin Inspecting print quality using digital watermarks
DE502005005538D1 (en) * 2004-03-23 2008-11-13 Koenig & Bauer Ag METHOD FOR IDENTIFYING AN INDIVIDUAL BENEFIT WITH A PRINT IMAGE OF INCORRECT QUALITY ON A MULTIPLE PRESENT PRINTED SUBSTANCE
DE102004052181B3 (en) * 2004-07-23 2006-01-19 Koenig & Bauer Ag Printing press device to trigger picture taking unit or lighting device has control unit triggering line axis defined in press, depending on line axis position
EP2492094A1 (en) * 2011-02-25 2012-08-29 Bobst Bielefeld GmbH Colour proving apparatus and method
DE102013108485B4 (en) * 2013-08-06 2015-06-25 Khs Gmbh Device and method for error tracking in strip materials
JP6805392B2 (en) * 2017-08-15 2020-12-23 ザ ジェネラル ホスピタル コーポレイション Microfluidic device

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213952B2 (en) * 1972-07-31 1977-04-18
GB2115145B (en) * 1981-07-29 1986-05-29 Dainippon Printing Co Ltd Method and device for inspecting printed matter
DE3380997D1 (en) * 1982-08-31 1990-01-25 Dainippon Printing Co Ltd IMAGE EXAMINATION METHOD.
DE3481595D1 (en) 1983-06-02 1990-04-19 Wales R Langdon REGISTER CONTROL IN A CLOSED LOOP.
US4736446A (en) * 1985-03-29 1988-04-05 Quad-Tech Inc. Cutoff control system
JPH0674112B2 (en) * 1986-04-23 1994-09-21 三菱重工業株式会社 Automatic sorting device for sheet paper
ATE105774T1 (en) * 1989-06-29 1994-06-15 De La Rue Giori Sa GRAVIFICATION MACHINE FOR PRINTING SECURITIES.
DE4124397A1 (en) * 1990-07-23 1992-04-02 Lehner Rolf Peter Printed web fault monitor - has paired sensors to monitor print repeat on web with deviations recorded to show location of web faults
CA2058242C (en) * 1990-12-20 1996-12-17 Yutaka Hashimoto Print monitoring apparatus
JP2931109B2 (en) 1990-12-25 1999-08-09 東芝機械株式会社 Printed matter monitoring device
DE4142481A1 (en) * 1991-08-12 1993-02-18 Koenig & Bauer Ag QUALITY CONTROL OF AN IMAGE, FOR example A PRINTED PATTERN
DE59208384D1 (en) 1991-08-12 1997-05-28 Koenig & Bauer Ag Quality control of an image template e.g. B. a printed pattern
DE4129126A1 (en) 1991-09-02 1993-03-04 Memminger Iro Gmbh METHOD FOR DETECTING ERRORS IN A TEXTILE TRACK
CH687138A5 (en) 1992-02-07 1996-09-30 Bobst Sa A print error detection in a rotary printing machine.
US5305392A (en) 1993-01-11 1994-04-19 Philip Morris Incorporated High speed, high resolution web inspection system
DE4321177A1 (en) * 1993-06-25 1995-01-05 Heidelberger Druckmasch Ag Device for parallel image inspection and color control on a printed product
DE4432371B4 (en) 1994-09-12 2004-12-09 Heidelberger Druckmaschinen Ag Useful printing and finishing processes
US5908541A (en) * 1997-09-09 1999-06-01 Elcorsy Technology Inc. Multicolor electrocoagulation printing method and apparatus

Also Published As

Publication number Publication date
US6333987B1 (en) 2001-12-25
EP0892722A1 (en) 1999-01-27
DE19613083A1 (en) 1997-10-09
JPH11507305A (en) 1999-06-29
WO1997036749A1 (en) 1997-10-09
EP0892722B1 (en) 2001-11-07
DE59705282D1 (en) 2001-12-13
DE59706033D1 (en) 2002-02-21
ES2170563T3 (en) 2002-08-01
EP0987110A1 (en) 2000-03-22
ES2165605T3 (en) 2002-03-16

Similar Documents

Publication Publication Date Title
EP0741026B1 (en) Image inspection and ink supply method in printed products of a printing machine
EP1642244B1 (en) Sheet quality control device
EP3456535B1 (en) Image inspection printed products with defect classes
DE4432371B4 (en) Useful printing and finishing processes
DE3100304A1 (en) PRESSURE TEST DEVICE
WO2007115637A1 (en) Weighted sheet inspection
DE102016123695A1 (en) Procedure for monitoring a handover process
WO2005104034A1 (en) Method for evaluating the quality of a printed matter, produced by a printing machine
EP0987110B1 (en) Process for assessing the quality of processed material
DE102010036249A1 (en) Method and device for determining register deviations by means of recursion analysis
EP1727679A2 (en) Method for identifying a single panel comprising a printed image of defective quality on printed material comprising several panels
EP0860276B1 (en) Device and method for quality control
DE102008000031A1 (en) Printing block arrangement controlling method for e.g. newspaper printing press, involves comparing image characteristic obtained from separation associated data and characteristic or information characterizing characteristic in comparator
EP3426492B1 (en) Method for checking the maintenance of register of printed images to be printed on two opposite sides of a printing material
EP3871892B1 (en) Detektion method to minimize maculature
EP3659813A1 (en) Variable print control bars
DE102015203358B4 (en) Method for evaluating a plurality of printed products each having at least one print image with respect to their respective further processing capability
DE2259761A1 (en) DEVICE FOR CAPTURING AND COLLECTING WASTE
EP0259636B1 (en) Device for detecting defects
DE102004017061B4 (en) Method and device for checking missing sheets on a printing machine
DE102017211225A1 (en) Method for operating a processing machine
DE102004029140A1 (en) Defective quality printed image copy identifying method for print substrate, involves determining location of copy containing defect by comparing data, correlating with image, to data record concerning arrangement and form of copy
DE102021118983A1 (en) Image inspection filter
DE102004014498A1 (en) Printed substrate`s print quality e.g. color density, checking method, involves measuring each part of substrate with respect to measured print quality of respective parts, and concluding quality based on measurements of parts
DD259599A1 (en) PROCEDURE FOR SELF-CONTROLLING DEVICES FOR THE QUALITY ASSESSMENT OF PRINTED PRODUCTS

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AC Divisional application: reference to earlier application

Ref document number: 892722

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17P Request for examination filed

Effective date: 20000814

AKX Designation fees paid

Free format text: CH DE ES FR GB IT LI SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010807

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

AC Divisional application: reference to earlier application

Ref document number: 892722

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020116

REF Corresponds to:

Ref document number: 59706033

Country of ref document: DE

Date of ref document: 20020221

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2170563

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120421

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20120420

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130401

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20140609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130402

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59706033

Country of ref document: DE

Owner name: KOENIG & BAUER AG, DE

Free format text: FORMER OWNER: KOENIG & BAUER AKTIENGESELLSCHAFT, 97080 WUERZBURG, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160607

Year of fee payment: 20

Ref country code: GB

Payment date: 20160425

Year of fee payment: 20

Ref country code: CH

Payment date: 20160423

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20160423

Year of fee payment: 20

Ref country code: SE

Payment date: 20160422

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59706033

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20170331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20170331