EP0143744B1 - Procédé et dispositif d'analyse de qualité d'impression et/ou de réglage d'encre dans une rotative offset et rotative offset équipée d'un tel dispositif - Google Patents
Procédé et dispositif d'analyse de qualité d'impression et/ou de réglage d'encre dans une rotative offset et rotative offset équipée d'un tel dispositif Download PDFInfo
- Publication number
- EP0143744B1 EP0143744B1 EP84810525A EP84810525A EP0143744B1 EP 0143744 B1 EP0143744 B1 EP 0143744B1 EP 84810525 A EP84810525 A EP 84810525A EP 84810525 A EP84810525 A EP 84810525A EP 0143744 B1 EP0143744 B1 EP 0143744B1
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- EP
- European Patent Office
- Prior art keywords
- printing
- surface coverages
- process according
- image element
- determined
- 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
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- 238000007639 printing Methods 0.000 title claims description 85
- 238000000034 method Methods 0.000 title claims description 28
- 238000007645 offset printing Methods 0.000 title claims description 9
- 230000008569 process Effects 0.000 claims description 25
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- 230000007423 decrease Effects 0.000 claims 1
- 239000000976 ink Substances 0.000 description 27
- 238000005259 measurement Methods 0.000 description 11
- 239000007787 solid Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 3
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Images
Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
-
- 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
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
- B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
Definitions
- the invention relates to a method and a device for assessing the print quality and / or regulating the ink flow in an offset printing machine according to the preamble of claim 1 and 15, and to an offset printing machine equipped with a corresponding device according to the preamble of claim 17.
- the assessment of the print quality and regulation of the color routing is usually carried out with the help of standardized color control strips. These printed control strips are evaluated densitometrically and the color values of the printing press are then adjusted accordingly.
- the measurement of the color control strips can be done on the running machine with so-called machine densitometers or off-line by means of e.g. B. an automatic scanning densitometer, the control loop to the inking units in both cases open (quality assessment) or closed (machine control).
- a representative example of a computer-controlled printing machine with a closed control loop is in U.S. Patent 4,200,932.
- US Pat. No. 3,376,426 describes a multicolor printing machine which is controlled by a machine densitometer and does not require color measuring strips. With this printing machine, the individual printed sheets are scanned point by point, the reflectance values obtained are converted into densities (logarithmic) and the color densities are transformed into analytical color densities in a nonlinear unmasking operation. These analytical color densities are compared directly with the analytical color densities of an OK sheet obtained and stored in the same way, and a signal is obtained from the comparison result that indicates the deviation of the color guide from the target setting and by means of which the color guide can be adjusted.
- the printed products on the running printing press are photoelectrically scanned picture-by-picture over the entire image area by means of a machine densitometer.
- the sample values from the individual picture elements are compared with the sample values of a reference printed product (O.K. sheet), which may have been prepared, and a quality decision "good” or "bad” is made on the basis of the comparison result according to certain criteria.
- the decision criteria include the number of picture elements which differ from the corresponding picture elements of the reference by more than a certain degree of tolerance, the differences in the sampled values summed up over selected image areas to the corresponding sampled values of the reference and the differences between the sampled values summed up via certain scan tracks corresponding values of the reference.
- the aim of the invention is to provide a system for mechanical quality assessment of printed products and corresponding regulation of the ink guide members on a printing press, which is improved compared to the prior art, in particular with regard to accuracy and reliability, and does not require color control strips.
- a machine densitometer is also of conventional design, which scans the printing units (printing sheets 4) photoelectrically.
- An electronic system in the form of a process computer 5 is connected to the machine densitometer 3, which controls all functional sequences of the machine densitometer and evaluates the remission data generated by it.
- the result of this evaluation are control values or signals with which the ink guide elements 2 of the printing press are influenced.
- the process computer can also process the measurement data into quality measures for assessing the print quality.
- the photoelectric measurement of the individual printed products takes place picture-wise, ie the printed sheets are divided into picture elements and the reflectance in each picture element is determined in four spectral ranges (infrared for black, red for cyan, green for magenta and blue for yellow).
- Picture element sizes that are reasonable in practice are 0.5 x 0.5 mm 2 to approximately 20 x 20 mm 2 , preferably approximately 1 x 1 mm 2 to 10 x 10 mm 2 .
- the reflectance values for the individual picture elements do not all have to come from the same printed sheet; the emission detection mg can rather also be distributed over several printed sheets (less expenditure in terms of apparatus).
- the measured remissions are not converted into density values but are immediately "unmasked", i.e. the associated area coverings for the printing inks are calculated from the four remissions of each image element. This calculation is carried out in a manner to be explained in more detail by solving the Neugebauer equations.
- the unmasking of the remissions is indicated in the drawing by the box 51 within the process computer 5.
- the further processing of the measurement data is only indicated in the drawing for a single printing ink (black).
- the measurement data relating to the other printing inks is processed analogously.
- the printer gives the OK for continued printing.
- the print sheets created at this point in time and immediately afterwards can be used as a reference (OK sheet).
- This reference (in the form of a single sheet or in the form of several successive sheets) is now measured and unmasked according to the picture element above.
- the area coverings of all image elements of the reference, hereinafter referred to as target area coverings, calculated in this way are stored in four area coverage matrices 52 each associated with a printing ink.
- four weight matrices each assigned to a printing ink are calculated (block 53) and stored (block 54).
- Each image element is assigned a weighting factor for each printing ink, which indicates the certainty with which the area coverage of this color can be determined in this image element. More details about these weight factors are explained below.
- the color of the press is divided into zones.
- the weight factors are therefore added up in block 55 according to their belonging to a zone.
- a total weight is then obtained for each zone and printing ink, which represents a measure of the security with which a change in the color guidance in this zone can be measured.
- production sheets are measured continuously or from time to time in the same way as the reference (OK sheet) and compared with the reference.
- the surface coverings of the continuous printing (actual surface coverings) obtained after the unmasking from the remissions are compared picture element by picture element with the corresponding target surface coverings of the reference (subtraction level 56) and the deviations from the target surface coverings with the associated ones stored in the weight matrices 54 Weighted factors weighted (multiplier 57).
- the weighted deviations are summed up zone by zone for each printing ink (summer 58) and finally the zonal sums thus formed are normalized by division (divider 59) by the assigned zonal total weight.
- the result of these steps is then a weighted, standardized zonal deviation per printing zone and printing ink, which expresses the relative color deviation in the printing zone during the printing process and can be used as a control signal for the assigned ink guide element 2.
- the comparison of target and actual area coverings is preferably carried out online, so that the individual measured values of the production run do not have to be saved.
- the deviations of the surface coverings can also be converted into coordinate deviations in the color space. Different weights corresponding to the importance of the image can be assigned to the individual image elements and the deviations can thus be weighted. In this way, changes in the visual impression of the printed image or a measure of quality can be determined.
- B j -BN j are constants that depend on the printing order and the solid density. Their values can be measured empirically from corresponding color tables. For the print order B, C, M, Y, for example, they were determined as follows for a solid density of approximately 1.5:
- the security with which deviations in the area coverage of a picture element can be determined depends on several parameters. At approx. 50-70%, area coverage, the dot increase has the greatest effect when the solid tone increases in density. This means that medium area coverages have to be taken into account more than large or small area covers. In a quiet environment (homogeneous surface coverage), incorrect positioning plays a smaller role than in a moving environment. Are at If several colors are printed at the same point, the individual color can be isolated less precisely.
- three partial weights are defined for each picture element and / or printing ink, namely a partial weight G 1 dependent on the area coverage, a partial weight G 2 depending on the environment and a partial weight G 3 dependent on the foreign color. The three partial weights are multiplied together and together result in the weight factor already mentioned for each picture element and each printing color.
- the individual partial weights can also be weighted differently when combined with the weight factor, which can be expressed as follows:
- g i -g 3 mean the influence weights of the three partial weights. These influencing weights are in the range from 0 to 1. Usually, G receives the strongest and G 2 the weakest influencing weight.
- G 4 For special printing originals, it is conceivable to introduce a fourth weight G 4 .
- G 4 certain areas of the printed sheet can be rated stronger or weaker.
- the areas and G 4 can be entered interactively by the printer via a computer terminal.
- G 4 can be used to suppress the rating of printed text.
- Deviations in the color scheme have an effect at approx. 50-70%, surface coverage has the greatest impact. With medium area coverings, deviations can thus be determined with greater certainty.
- the area weight-dependent partial weight G is chosen such that it is maximum for medium area coverings, but drops towards smaller and larger area coverings.
- Suitable courses are, for example, parabolas, triangles, trapezoids, the maximum value 1 of the partial weight being odet around 50% area coverage.
- partial weight curves are as follows:
- indexes i, j for picture elements and printing ink are omitted in these formulas for the sake of simplicity.
- a Laplace operator of the general type is particularly suitable as a simple differential operator in a 3 x 3 picture element environment:
- the environment taken into account can be enlarged as desired.
- the diagonal coefficients can also be taken into account ( ⁇ 0).
- the environment-dependent partial weight G 2 (for each picture element and for each printing ink) is then calculated from the following formula: where
- the partial weight G 3 then results as the product of the reflectance values of the foreign color components exposed with the corresponding influencing coefficients:
- ß B , ßc, ß M and ßy are the remissions in the colors B, C, M.
- Y and a jl to a j4 the mentioned coefficients of influence.
- the index j denotes the respective printing ink for which the partial weight applies.
- B, C, M and Y these coefficients can be represented in a matrix: Practical values are for example:
- Partial weight G 1 also has the focus at approx. 50%, area coverage. G 1 thus causes a dynamic compression of the deviations with larger and smaller area coverings. Is z. B. the trapezoidal function of G 1 chosen wide enough, however, there are only slight distortions of the absolute deviations.
- an additional scanner must be attached before and after the printing unit of the fifth and sixth color. With the measurement before and after the printing unit, the contribution of the last printed color can be calculated and the deviation from the target value can be determined.
- the area-dependent partial weight G 1 must be 1 for medium and full tones.
- the foreign color-dependent partial weight G 3 becomes 0 for each picture element with a (also small) area coverage of a foreign color. This ensures that only pure colors are measured.
- the target values of the surface coverings are obtained from a reference in the form of one (or more) OK sheet.
- a reference in the form of one (or more) OK sheet.
- Such an alternative is e.g. B. in using the printing plates themselves as a reference.
- the individual printing plates are divided into picture elements in the same way as the printed products to be tested.
- the picture elements are scanned photoelectrically and the area coverage is determined for each picture element. There are two options for further processing.
- Either the measured area coverage of each image element of each printing plate is converted into corresponding area coverage in the print using the printing characteristic of the printing press (empirical, tables) and then directly used as target area coverage for comparison with the actual area coverage, or the measured area coverage is based on the printing characteristic curve converted into remission values, which are then unmasked again as described above and thereby transformed into the target area coverings.
- the reference is synthesized from the printing plates to a certain extent.
- FIG. 2 shows a block diagram of a device operating according to this variant.
- the process computer 5 is connected to the already mentioned machine densitometer 3 and the ink guide elements 2 of the printing press.
- a plate scanner 6 is also provided, which is also connected to the process computer 5.
- the plate scanner 6 is of a conventional type (for example according to US Pat. Nos. 4,131,879 and 3,958,509 or EP Publ. No. 69572, 96227 and 29561) and scans the individual printing plates point-by-point photoelectrically.
- the scanning points (spots) can coincide with the picture elements or can preferably be significantly smaller than these. In the latter case, the area coverage of the individual picture elements can be determined with greater resolution and thus more precisely and reliably. Details on the pre-calculation of the remissions or the determination of the surface densities from the printing plates can be found in the CH patent application No. 5965/83 of November 4, 1983.
- control of the printing process can also take place on the basis of a reference in the form of the underlying printing plates (or perhaps even on the basis of the last underlying raster films or the like). Mixed operation is also possible.
- the OK sheet already matches the "synthesized" reference calculated in advance on the basis of the printing plates, so that a special measurement of an OK sheet is not necessary.
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- 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)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Treatment Of Fiber Materials (AREA)
- Spectrometry And Color Measurement (AREA)
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84810525T ATE31900T1 (de) | 1983-11-04 | 1984-10-29 | Verfahren und vorrichtung zur beurteilung der druckqualitaet und/oder regelung der farbfuehrung bei einer offset-druckmaschine und mit einer entsprechenden vorrichtung ausgestattete offset- druckmaschine. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH596583 | 1983-11-04 | ||
CH5965/83 | 1983-11-04 | ||
CH692683 | 1983-12-27 | ||
CH6926/83 | 1983-12-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0143744A1 EP0143744A1 (fr) | 1985-06-05 |
EP0143744B1 true EP0143744B1 (fr) | 1988-01-13 |
Family
ID=25698748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84810525A Expired EP0143744B1 (fr) | 1983-11-04 | 1984-10-29 | Procédé et dispositif d'analyse de qualité d'impression et/ou de réglage d'encre dans une rotative offset et rotative offset équipée d'un tel dispositif |
Country Status (8)
Country | Link |
---|---|
US (1) | US4649502A (fr) |
EP (1) | EP0143744B1 (fr) |
AU (1) | AU577069B2 (fr) |
CA (1) | CA1216943A (fr) |
DE (1) | DE3468650D1 (fr) |
DK (1) | DK159960C (fr) |
ES (1) | ES8600624A1 (fr) |
NO (1) | NO164158C (fr) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0219847A2 (fr) * | 1985-10-21 | 1987-04-29 | Pitney Bowes Inc. | Système de surveillance automatique de niveau d'encre |
EP0228347A1 (fr) * | 1985-12-10 | 1987-07-08 | Heidelberger Druckmaschinen Aktiengesellschaft | Procédé de commande de l'alimentation en encre pour une machine à imprimer, dispositif d'impression équipé de manière correspondante et dispositif de mesure pour un tel appareil d'impression |
EP0277329A2 (fr) * | 1987-02-03 | 1988-08-10 | Komori Corporation | Procédé de réglage de la position de la mesure d'une densité |
WO1989010263A1 (fr) * | 1988-04-26 | 1989-11-02 | Allen-Bradley International Limited | Appareil de commande |
GB2229019A (en) * | 1989-02-10 | 1990-09-12 | Heidelberger Druckmasch Ag | Controlling printing ink values |
EP0442322A1 (fr) * | 1990-02-10 | 1991-08-21 | MAN Roland Druckmaschinen AG | Procédé pour le réglage de la couleur et le préréglage par zones |
DE4402828A1 (de) * | 1994-01-31 | 1995-08-10 | Wifag Maschf | Color-Management im Rollenoffset-Auflagendruck |
US5500801A (en) * | 1993-10-16 | 1996-03-19 | Heidelberger Druckmaschinen Ag | Device for compensating for deviations in register in printed products |
US5530656A (en) * | 1993-10-21 | 1996-06-25 | Man Roland Druckmaschinen Ag | Method for controlling the ink feed of a printing machine for half-tone printing |
US5551342A (en) * | 1993-12-22 | 1996-09-03 | Man Roland Druckmaschinen Ag | Method for controlling the ink guidance in a printing machine |
DE19617016A1 (de) * | 1996-04-27 | 1997-11-27 | Thomas Fuchs | Verfahren zur Steuerung der Farbgebung einer Druckmaschine |
US5696890A (en) * | 1993-10-16 | 1997-12-09 | Heidelberger Druckmaschinen Ag | Method of register regulation and printing control element for determining register deviations in multicolor printing |
DE19711918A1 (de) * | 1997-03-21 | 1998-09-24 | Heidelberger Druckmasch Ag | Verfahren zum Einstellen der Farbschichtdicke beim Aufbringen von Druckfarben auf einen Bedruckstoff |
DE19749064A1 (de) * | 1997-11-06 | 1999-05-12 | Heidelberger Druckmasch Ag | Verfahren zur Ermittlung von Farbwertgradienten |
DE19749063A1 (de) * | 1997-11-06 | 1999-05-12 | Heidelberger Druckmasch Ag | Verfahren zur Gewinnung von Farbmeßwerten |
DE19749066A1 (de) * | 1997-11-06 | 1999-05-12 | Heidelberger Druckmasch Ag | Verfahren zur Regelung des Farbauftrages bei einer Druckmaschine |
US6539863B2 (en) | 2000-03-13 | 2003-04-01 | Dainippon Screen Mfg., Co., Ltd. | Ink control in printing press |
US6748860B2 (en) | 1994-04-15 | 2004-06-15 | Heidelberger Druckmaschinen Ag | Operating panel for a printing machine, inking control system for a printing machine, and inking control method |
DE19830487B4 (de) * | 1997-11-06 | 2010-12-16 | Heidelberger Druckmaschinen Ag | Verfahren zur Ermittlung von Flächendeckungen in einem Druckbild |
Families Citing this family (57)
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ATE58336T1 (de) * | 1983-12-19 | 1990-11-15 | Gretag Ag | Verfahren, vorrichtung und farbmessstreifen fuer die druckqualitaetsbeurteilung. |
US5182721A (en) * | 1985-12-10 | 1993-01-26 | Heidelberger Druckmaschinen Aktiengesellschaft | Process and apparatus for controlling the inking process in a printing machine |
DE3626423A1 (de) * | 1986-08-05 | 1988-02-11 | Deutsche Forsch Druck Reprod | Verfahren und vorrichtung zur beeinflussung der farblichen erscheinung einer farbflaeche bei einem druckvorgang |
DE3643720C2 (de) * | 1986-12-20 | 1994-03-10 | Heidelberger Druckmasch Ag | Verfahren zum Ermitteln von Steuer- /Regelgrößen für das Farbwerk von Druckmaschinen |
DE3707027A1 (de) * | 1987-03-05 | 1988-09-15 | Deutsche Forsch Druck Reprod | Verfahren zur steuerung der farbgebung im mehrfarbendruck |
DE3714179A1 (de) * | 1987-04-29 | 1988-11-17 | Forschungsgesellschaft Fuer Dr | Verfahren zur steuerung der farbgebung im mehrfarbendruck |
DE3717904A1 (de) * | 1987-05-27 | 1988-12-08 | Heidelberger Druckmasch Ag | Verfahren zur regelung des druckprozesses an offsetdruckmaschinen |
US4967379A (en) * | 1987-12-16 | 1990-10-30 | Gretag Aktiengesellschaft | Process for the ink control or regulation of a printing machine by comparing desired color to obtainable color data |
US4975862A (en) * | 1988-01-14 | 1990-12-04 | Gretag Aktiengesellschaft | Process and apparatus for the ink control of a printing machine |
DE3908270C2 (de) * | 1988-03-15 | 1997-08-21 | Dainippon Printing Co Ltd | Verfahren zur Steuerung eines auf einer Offset-Druckmaschine durchzuführenden Druckauftrages und Anordnung zu dessen Durchführung |
DE3812099C2 (de) * | 1988-04-12 | 1995-01-26 | Heidelberger Druckmasch Ag | Verfahren zur Farbsteuerung einer Offsetdruckmaschine |
US4959790A (en) * | 1988-06-28 | 1990-09-25 | F & S Corporation Of Columbus, Georgia | Apparatus and method for producing color corrected reproduction of colored original images |
DD274786A1 (de) * | 1988-08-11 | 1990-01-03 | Adw Ddr Kybernetik Inf | Verfahren und anordnung zur ueberwachung der druckqualitaet mehrfarbiger rasterdruckvorlagen einer offset-druckmaschine |
US4936211A (en) * | 1988-08-19 | 1990-06-26 | Presstek, Inc. | Multicolor offset press with segmental impression cylinder gear |
DE3924989A1 (de) * | 1989-07-28 | 1991-02-07 | Roland Man Druckmasch | Vorrichtung zur durchfuehrung einer umfassenden qualitaetskontrolle an druckbogen |
DE4005558A1 (de) * | 1990-02-22 | 1991-09-19 | Roland Man Druckmasch | Verfahren zur prozessdiagnose einer rotationsdruckmaschine anhand von remissionen von vollton- und rastertonfeldern |
US5168807A (en) * | 1990-10-30 | 1992-12-08 | Como Technologies, Inc. | Printing apparatus and method |
FI103395B (fi) * | 1991-03-21 | 1999-06-30 | Wifag Maschf | Menetelmä rasteripistekoon säätämiseksi offsetrotaatiopainokonetta var ten |
US5841955A (en) * | 1991-12-02 | 1998-11-24 | Goss Graphic Systems, Inc. | Control system for a printing press |
US5224421A (en) * | 1992-04-28 | 1993-07-06 | Heidelberg Harris, Inc. | Method for color adjustment and control in a printing press |
US5412577A (en) * | 1992-10-28 | 1995-05-02 | Quad/Tech International | Color registration system for a printing press |
DE4321177A1 (de) * | 1993-06-25 | 1995-01-05 | Heidelberger Druckmasch Ag | Vorrichtung zur parallelen Bildinspektion und Farbregelung an einem Druckprodukt |
EP0632645A1 (fr) * | 1993-06-29 | 1995-01-04 | Schablonentechnik Kufstein Aktiengesellschaft | Procédé de reproduction de motifs et pochoir pour ce dernier |
US5579446A (en) * | 1994-01-27 | 1996-11-26 | Hewlett-Packard Company | Manual/automatic user option for color printing of different types of objects |
US5812705A (en) * | 1995-02-28 | 1998-09-22 | Goss Graphic Systems, Inc. | Device for automatically aligning a production copy image with a reference copy image in a printing press control system |
DE19516330A1 (de) * | 1995-05-04 | 1996-11-07 | Heidelberger Druckmasch Ag | Verfahren zur Einstellung der Farbgebung bei einer Druckmaschine |
US5767980A (en) * | 1995-06-20 | 1998-06-16 | Goss Graphic Systems, Inc. | Video based color sensing device for a printing press control system |
US5805280A (en) * | 1995-09-28 | 1998-09-08 | Goss Graphic Systems, Inc. | Control system for a printing press |
US5903712A (en) * | 1995-10-05 | 1999-05-11 | Goss Graphic Systems, Inc. | Ink separation device for printing press ink feed control |
EP0795400A1 (fr) * | 1996-03-12 | 1997-09-17 | Goss Graphic Systems, Inc. | Dispositif pour aligner automatiquement une image d'une copie de production avec une image d'une copie de référence dans un système de contrÔle d'une machine d'impression |
IT1284432B1 (it) * | 1996-03-22 | 1998-05-21 | De La Rue Giori Sa | Procedimento di controllo automatico della qualita' di stampa di un'immagine policroma |
DE19632969C2 (de) | 1996-08-16 | 1999-04-29 | Roland Man Druckmasch | Verfahren zur Ermittlung von Vorgabewerten für die Herstellung von mehrfarbigen Druckexemplaren auf einer Druckmaschine |
US5791249A (en) * | 1997-03-27 | 1998-08-11 | Quad/Tech, Inc. | System and method for regulating dampening fluid in a printing press |
US6024018A (en) * | 1997-04-03 | 2000-02-15 | Intex Israel Technologies Corp., Ltd | On press color control system |
US5967050A (en) * | 1998-10-02 | 1999-10-19 | Quad/Tech, Inc. | Markless color control in a printing press |
US6185001B1 (en) | 1999-02-01 | 2001-02-06 | The Standard Register Company | Printed document and method of determining the print quality of a printed document |
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JP4047068B2 (ja) * | 2002-05-21 | 2008-02-13 | 大日本スクリーン製造株式会社 | 印刷機 |
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US7017492B2 (en) * | 2003-03-10 | 2006-03-28 | Quad/Tech, Inc. | Coordinating the functioning of a color control system and a defect detection system for a printing press |
EP1512531A1 (fr) | 2003-09-02 | 2005-03-09 | Abb Research Ltd. | Système de régulation d'encrage pour machines d'impression |
DE50305862D1 (de) * | 2003-10-23 | 2007-01-11 | Gretag Macbeth Ag | Farbqualitätsbeurteilung und Farbregelung bei der Farbreproduktion |
AR048044A1 (es) | 2003-11-07 | 2006-03-29 | Sipack S A | Procedimiento de prepensa de cuatricronomia exclusiva con gamut ampliado para rotograbado y tintas especiales ,carta de colores |
DE102009046853A1 (de) * | 2009-11-19 | 2011-05-26 | Manroland Ag | Verfahren zur Bestimmung von Eigenschaften eines bedruckten Bedruckstoffs |
WO2011126480A1 (fr) * | 2010-04-07 | 2011-10-13 | Hewlett-Packard Development Company, L.P. | Étalonnage de système d'impression en couleur |
US8605268B2 (en) * | 2011-03-02 | 2013-12-10 | Xerox Corporation | Multi-channel sensor for measuring colorants of prints |
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CN103604754B (zh) * | 2013-10-29 | 2016-03-02 | 杭州电子科技大学 | 一种报纸印刷的文字墨色的测量方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3958509A (en) * | 1974-06-13 | 1976-05-25 | Harris Corporation | Image scan and ink control system |
US3995958A (en) * | 1975-07-21 | 1976-12-07 | Hallmark Cards, Incorporated | Automatic densitometer and method of color control in multi-color printing |
DE2728738B2 (de) * | 1977-06-25 | 1979-05-10 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach | Eulrichtung zur Kontrolle und Regelung der Farbgebung an Druckmaschinen |
DE2747527A1 (de) * | 1977-10-22 | 1979-04-26 | Agfa Gevaert Ag | Verfahren und vorrichtung zum bestimmen der kopierlichtmengen beim kopieren von farbvorlagen |
JPS5952069B2 (ja) * | 1977-12-15 | 1984-12-18 | 凸版印刷株式会社 | 使用インキ量予測装置 |
DE2950606A1 (de) * | 1979-12-15 | 1981-06-19 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Vorrichtung zur zonenweisen optoelektronischen messung der flaechendeckung einer druckvorlage |
JPS5698634A (en) * | 1980-01-09 | 1981-08-08 | Dainippon Printing Co Ltd | Printed matter testing device |
DE3007421A1 (de) * | 1980-02-27 | 1981-09-03 | Windmöller & Hölscher, 4540 Lengerich | Verfahren zur herstellung eines vorlagengetreuen farbengemisches, insbesondere einer farbe eines mehrfarbendruckes |
DE3024773A1 (de) * | 1980-06-30 | 1982-01-28 | Grapho-Metronic Meß- und Regeltechnik GmbH & Co, KG, 8000 München | Verfahren und einrichtung zur kontrolle und zum steuern der farbgebung einer mehrfarben-druckmaschine |
US4309496A (en) * | 1980-09-10 | 1982-01-05 | Miller Dennis B | Method for optimization of image reproduction processes |
US4439038A (en) * | 1981-03-03 | 1984-03-27 | Sentrol Systems Ltd. | Method and apparatus for measuring and controlling the color of a moving web |
DE3265740D1 (en) * | 1981-04-03 | 1985-10-03 | Gretag Ag | Method and device for the colorimetric analysis of a printed colour test scale |
JPS57208422A (en) * | 1981-06-18 | 1982-12-21 | Fuji Photo Film Co Ltd | Hue judging device |
US4512662A (en) * | 1981-07-06 | 1985-04-23 | Tobias Philip E | Plate scanner for printing plates |
DE3248928T1 (de) * | 1981-07-29 | 1983-07-07 | Dai Nippon Insatsu K.K., Tokyo | Druck-inspektionsverfahren und vorrichtung zur durchfuehrung des verfahrens |
JPS5848054A (ja) * | 1981-09-17 | 1983-03-19 | Kotobuki Seihan Insatsu Kk | オフセツト印刷用ps版の種類識別方式 |
JPS5848177A (ja) * | 1981-09-18 | 1983-03-22 | Toshiba Corp | 特定色彩パタ−ンの検出装置 |
DE3220377A1 (de) * | 1982-05-29 | 1983-12-01 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Steuervorrichtung fuer eine druckmaschine |
DE3220800C2 (de) * | 1982-06-03 | 1986-10-30 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Vorrichtung zur Abtastung von Druckplatten |
DE3314333A1 (de) * | 1983-04-20 | 1984-10-25 | Albert-Frankenthal Ag, 6710 Frankenthal | Verfahren und vorrichtung zur regelung der farbzufuhr zu den farbwerken einer mehrfarbendruckmaschine |
EP0142470B1 (fr) * | 1983-11-04 | 1988-01-07 | GRETAG Aktiengesellschaft | Procédé et dispositif d'analyse de la qualité d'impression d'un imprimé, de préférence imprimé sur une rotative offset et rotative offset équipée d'un tel dispositif |
-
1984
- 1984-10-29 EP EP84810525A patent/EP0143744B1/fr not_active Expired
- 1984-10-29 DE DE8484810525T patent/DE3468650D1/de not_active Expired
- 1984-10-29 US US06/665,974 patent/US4649502A/en not_active Expired - Lifetime
- 1984-11-02 AU AU34968/84A patent/AU577069B2/en not_active Ceased
- 1984-11-02 NO NO844370A patent/NO164158C/no unknown
- 1984-11-02 ES ES537315A patent/ES8600624A1/es not_active Expired
- 1984-11-02 CA CA000466916A patent/CA1216943A/fr not_active Expired
- 1984-11-02 DK DK522384A patent/DK159960C/da not_active IP Right Cessation
Cited By (30)
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EP0219847A2 (fr) * | 1985-10-21 | 1987-04-29 | Pitney Bowes Inc. | Système de surveillance automatique de niveau d'encre |
EP0219847A3 (fr) * | 1985-10-21 | 1988-01-07 | Pitney Bowes Inc. | Système de surveillance automatique de niveau d'encre |
EP0228347A1 (fr) * | 1985-12-10 | 1987-07-08 | Heidelberger Druckmaschinen Aktiengesellschaft | Procédé de commande de l'alimentation en encre pour une machine à imprimer, dispositif d'impression équipé de manière correspondante et dispositif de mesure pour un tel appareil d'impression |
EP0277329A2 (fr) * | 1987-02-03 | 1988-08-10 | Komori Corporation | Procédé de réglage de la position de la mesure d'une densité |
EP0277329A3 (en) * | 1987-02-03 | 1990-07-18 | Komori Printing Machinery Co., Ltd. | A method of adjusting density measurement position |
WO1989010263A1 (fr) * | 1988-04-26 | 1989-11-02 | Allen-Bradley International Limited | Appareil de commande |
US5089977A (en) * | 1989-02-10 | 1992-02-18 | Heidelberger Druckmaschinen Ag | Process for controlling the inking of printed products and apparatus for performing the process |
GB2229019B (en) * | 1989-02-10 | 1993-04-07 | Heidelberger Druckmasch Ag | Process for the control of the inking of printed products |
GB2229019A (en) * | 1989-02-10 | 1990-09-12 | Heidelberger Druckmasch Ag | Controlling printing ink values |
EP0442322A1 (fr) * | 1990-02-10 | 1991-08-21 | MAN Roland Druckmaschinen AG | Procédé pour le réglage de la couleur et le préréglage par zones |
US5500801A (en) * | 1993-10-16 | 1996-03-19 | Heidelberger Druckmaschinen Ag | Device for compensating for deviations in register in printed products |
US5696890A (en) * | 1993-10-16 | 1997-12-09 | Heidelberger Druckmaschinen Ag | Method of register regulation and printing control element for determining register deviations in multicolor printing |
DE4335351C2 (de) * | 1993-10-16 | 2003-04-30 | Heidelberger Druckmasch Ag | Verfahren und Vorrichtung zur Kompensation von Passerabweichungen in einer Offsetrotationsdruckmaschine |
US5530656A (en) * | 1993-10-21 | 1996-06-25 | Man Roland Druckmaschinen Ag | Method for controlling the ink feed of a printing machine for half-tone printing |
US5551342A (en) * | 1993-12-22 | 1996-09-03 | Man Roland Druckmaschinen Ag | Method for controlling the ink guidance in a printing machine |
DE4402828C2 (de) * | 1994-01-31 | 2001-07-12 | Wifag Maschf | Messfeldgruppe und Verfahren zur Qualitätsdatenerfassung unter Verwendung der Messfeldgruppe |
DE4402828A1 (de) * | 1994-01-31 | 1995-08-10 | Wifag Maschf | Color-Management im Rollenoffset-Auflagendruck |
US6748860B2 (en) | 1994-04-15 | 2004-06-15 | Heidelberger Druckmaschinen Ag | Operating panel for a printing machine, inking control system for a printing machine, and inking control method |
DE19617016A1 (de) * | 1996-04-27 | 1997-11-27 | Thomas Fuchs | Verfahren zur Steuerung der Farbgebung einer Druckmaschine |
DE19711918A1 (de) * | 1997-03-21 | 1998-09-24 | Heidelberger Druckmasch Ag | Verfahren zum Einstellen der Farbschichtdicke beim Aufbringen von Druckfarben auf einen Bedruckstoff |
DE19711918B4 (de) * | 1997-03-21 | 2011-07-21 | Heidelberger Druckmaschinen AG, 69115 | Verfahren zum Einstellen der Farbschichtdicke beim Aufbringen von Druckfarbe auf einen Bedruckstoff |
DE19749066A1 (de) * | 1997-11-06 | 1999-05-12 | Heidelberger Druckmasch Ag | Verfahren zur Regelung des Farbauftrages bei einer Druckmaschine |
EP0920994A2 (fr) * | 1997-11-06 | 1999-06-09 | Heidelberger Druckmaschinen Aktiengesellschaft | Procédé pour la détermination de valeurs de couleur |
EP0920994A3 (fr) * | 1997-11-06 | 1999-11-10 | Heidelberger Druckmaschinen Aktiengesellschaft | Procédé pour la détermination de valeurs de couleur |
DE19749063A1 (de) * | 1997-11-06 | 1999-05-12 | Heidelberger Druckmasch Ag | Verfahren zur Gewinnung von Farbmeßwerten |
US6469804B1 (en) * | 1997-11-06 | 2002-10-22 | Heidelberger Druckmaschinen Ag | Method of obtaining colorimetric values |
DE19749064A1 (de) * | 1997-11-06 | 1999-05-12 | Heidelberger Druckmasch Ag | Verfahren zur Ermittlung von Farbwertgradienten |
DE19830487B4 (de) * | 1997-11-06 | 2010-12-16 | Heidelberger Druckmaschinen Ag | Verfahren zur Ermittlung von Flächendeckungen in einem Druckbild |
US6539863B2 (en) | 2000-03-13 | 2003-04-01 | Dainippon Screen Mfg., Co., Ltd. | Ink control in printing press |
US6684780B2 (en) | 2000-03-13 | 2004-02-03 | Dainippon Screen Mfg. Co., Ltd. | Ink control in printing press |
Also Published As
Publication number | Publication date |
---|---|
ES537315A0 (es) | 1985-10-16 |
DK522384D0 (da) | 1984-11-02 |
NO164158C (no) | 1990-09-05 |
ES8600624A1 (es) | 1985-10-16 |
DE3468650D1 (en) | 1988-02-18 |
EP0143744A1 (fr) | 1985-06-05 |
DK522384A (da) | 1985-05-05 |
NO844370L (no) | 1985-05-06 |
NO164158B (no) | 1990-05-28 |
DK159960B (da) | 1991-01-07 |
US4649502A (en) | 1987-03-10 |
AU577069B2 (en) | 1988-09-15 |
DK159960C (da) | 1991-06-03 |
CA1216943A (fr) | 1987-01-20 |
AU3496884A (en) | 1985-05-09 |
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