EP0836942A1 - Bloc de mesure et procédé d'acquisition des données de qualité dans des machines d'impression multicoloré pour feuilles - Google Patents

Bloc de mesure et procédé d'acquisition des données de qualité dans des machines d'impression multicoloré pour feuilles Download PDF

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Publication number
EP0836942A1
EP0836942A1 EP97810655A EP97810655A EP0836942A1 EP 0836942 A1 EP0836942 A1 EP 0836942A1 EP 97810655 A EP97810655 A EP 97810655A EP 97810655 A EP97810655 A EP 97810655A EP 0836942 A1 EP0836942 A1 EP 0836942A1
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EP
European Patent Office
Prior art keywords
measuring
color
fields
measuring field
field block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97810655A
Other languages
German (de)
English (en)
Other versions
EP0836942B1 (fr
Inventor
Stephan Papritz
Karl Heuberger
Hansjörg Künzli
Markus Därwyler
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.)
Wifag Maschinenfabrik AG
Original Assignee
Wifag Maschinenfabrik 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
Priority claimed from DE1996139014 external-priority patent/DE19639014C2/de
Priority claimed from DE1997138923 external-priority patent/DE19738923A1/de
Application filed by Wifag Maschinenfabrik AG filed Critical Wifag Maschinenfabrik AG
Publication of EP0836942A1 publication Critical patent/EP0836942A1/fr
Application granted granted Critical
Publication of EP0836942B1 publication Critical patent/EP0836942B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41F33/0081—Devices for scanning register marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/50—Marks on printed material
    • B41P2233/51—Marks on printed material for colour quality control

Definitions

  • the invention relates to a measuring field block and a method for detecting Quality data in multi-color edition printing according to the generic terms of the independent Expectations.
  • the quality data acquisition for example of paint, paint layer thickness, register, sliding, Duplication values, area coverings and the like are used for monitoring and Control of coloring in multi-color printing.
  • EP 0 196 431 B1 describes a method for achieving a uniform printing result on a multi-color offset printing press that works in an autotype. Color layer thicknesses or solid color densities and screen dot sizes or Area coverage line measured on measuring fields, for each printing ink in each Inking zone of the printing machine. Because of the densitometric The ink guide actuators on the press are automatically measured set. Since several measuring fields are also printed in each color setting zone of the machine this method is suitable If several measuring fields are printed in the zone of the machine, this method is suitable for commercial offset printing, but not for newspaper offset printing, where the In contrast to commercial offset printing, measuring fields are also printed within the type area and cannot be cut away after printing. Accept newspaper publishers these measuring fields are therefore reluctant.
  • Registration errors and measuring register marks suitable for measurement are known from DE 44 37 603 A1 and DE 40 14 706 A1. Such registration marks would have to be printed on the printed product to be checked in addition to the color marks and be measured with an appropriate measuring device. At least it has to two measuring devices are mastered and used.
  • color management With the progressive introduction of color management in the printing industry Another Problem.
  • the idea of color management is known to be that Color templates in digital prepress independent of output devices and materials be determined.
  • the colors of a picture template are in one by the commission Internationale de l 'Eclairage (CIE) standardized colorimetric coordinate system, such as CIEXYZ, CIELAB or CIELUV. If the output is defined in this way multicolored images on paper over a calibrated in terms of color management System, it is ensured that the color appearance of the printed product to the Original is comparable, regardless of the output process used.
  • CIE Commission Internationale de l 'Eclairage
  • Computer color printers, digital color copiers, among others, are calibratable output systems and digital proofing devices in use. It is worth pursuing the concept of Color management also on conventional printing processes, such as newspaper offset printing, expand. The existing of printing form production and printing process Effect chain treated like any other calibratable output device.
  • the invention has set itself the task of quality data acquisition in multi-color production printing, preferably in offset printing and preferably not only for commercial offset but also for newspaper offset printing.
  • the space required for the measuring elements required for determining quality data or Measuring fields are reduced compared to known solutions, and it should be the measuring technology Effort can be kept low.
  • the invention is based on a measuring field block, which is formed by several measuring fields is used to obtain color values, color densities or surface coverings or a Combination of these are suitable. Suitable here means that the measuring fields are large in each case are enough to use the measurement techniques available to determine these values to be able to measure, i.e. the measuring fields must have color measuring areas of sufficient size exhibit.
  • the measuring field block has at least one for simultaneous determination a value for a register deviation, i.e. a register value, lines in primary colors that are used for a print.
  • a value for a register deviation i.e. a register value
  • lines in primary colors that are used for a print.
  • Measurement field block a measurement and determination of a register deviation based on it and permitted by densitometric and / or colorimetric values.
  • a suitable one Measuring device is the measurement and determination based on such the print image determining values possible with a single measurement.
  • the lines preferably run between two of the measuring fields of the measuring field block through it. Very particularly preferably, there remains immediately on both sides along such a line, exact register provided an unprinted area. However, it can also be beneficial be the neighboring measuring fields, between which a line for determining the register to connect directly to such a line. In these two versions neighboring measuring fields of the measuring field block are thus separated from one another by a line separated.
  • the lines may also be advantageous if one, some or all of the lines are used to determine the Pass through one or more measuring fields of the measuring field block, in particular if the measuring field block has too few measuring fields to be used for the Determination of all register values, all lines between the measuring fields or immediately to the side of the outer measuring fields of the block.
  • At least one line in the circumferential direction is preferred for each primary color and present in the longitudinal direction of a printing cylinder. Is particularly preferred for the as Reference color serving base color another line for the at least one, preferably however, there are two directions in which a register deviation for at least one of the other primary colors to be determined. The distance between the two in the same The directional lines of the reference color are measured and used for coordination or calibration of the distances measured by the same measuring device into the same Direction lines for the other primary colors.
  • the measurement fields can each have at least one a color strip to determine the register and / or push and / or duplication have at least one color strip per measuring field in the same print is printed together with the color measuring surface of its measuring field, in relation to the Dimensions of the color measuring surface of his measuring field is narrow and in a predetermined, also in relation to the dimensions of the color measuring surface, close to the side Color measurement area runs.
  • each of the measuring fields according to the invention can be next to a color value, the color density and / or the area coverage in the color measurement area, by measuring the zone or area between the color measurement area and its lateral one Color strips a shift and / or duplication value determined for the printing unit in question will.
  • the shift and / or duplication values can be determined.
  • the measuring fields each have at least two of these lateral ones Color strips for determining sliding and duplication in the circumferential and lateral directions on.
  • the zones between the color measurement areas run very particularly preferably and their lateral color stripes in the circumferential and lateral directions; two like that on one Zones formed in individual measurement fields therefore run at right angles to one another.
  • the relative positions of the measuring fields preferably the lateral ones Color strips of the individual measuring fields can be determined to each other. Because of the invention In this case, too, training of the individual measuring fields is not necessary additional registration marks can also be printed. Because the zones between the color measurement areas and their lateral color stripes when printing the measuring field in question can also be printed, the register values on the measuring fields according to the invention be determined.
  • the measuring field block has the aforementioned lines and measuring fields with color measuring areas and Color strips slightly spaced laterally therefrom are used to determine the Register values preferably the lines and to determine the sliding and / or Duplicate values the color strips used. If the measuring fields the color strips mentioned have, but the aforementioned lines are not present, which is also one preferred embodiment corresponds, it is still possible, the register values and / or to determine shift values and / or duplication values by means of the colored strips.
  • the measuring fields are preferably at least single-color full-tone fields in the respective primary colors, generally cyan, magenta and yellow for four-color printing, or corresponding single-color grids, in which the basic colors in each case are printed with their nominal area coverage. If both solid densities and single-color full-tone fields and Individual color grids printed in the primary colors.
  • a solid tone field in black can also be used in each of the above combinations be provided.
  • Combination measuring fields in addition to any of the aforementioned Combination measuring fields can be provided, in each of which at least two basic colors with their nominal area coverage are printed on top of each other, so that meaningful values regarding the ink acceptance behavior are determined can.
  • an additional combination measuring field can also be printed, in which all primary colors with their nominal area coverage are printed on top of each other are.
  • measuring field block can be arranged.
  • the register is exact, they are in shape a single compact measuring field block arranged and printed, so that the neighboring measuring fields with their color measuring areas or their lateral color strips blunt or collide on the lines or color measuring surfaces or the color strips keep a small distance from each other or from the lines.
  • the register is exact, they are in shape a single compact measuring field block arranged and printed, so that the neighboring measuring fields with their color measuring areas or their lateral color strips blunt or collide on the lines or color measuring surfaces or the color strips keep a small distance from each other or from the lines.
  • several measuring fields to such Arranged measuring field blocks and possibly several such measuring field blocks, each with different measuring fields are provided; Individual fields can also be added be printed in the picture.
  • a suitable measuring device When using a single compact measuring field block, the use of a suitable measuring device, provided all the quality by means of a single touch of the printed product influencing values, namely the register values, sliding and Duplication values as well as color density, color acceptance and color balance values, color values, Area coverings and the like or a desired sub-combination determined will.
  • a preferred method for recording quality data in multi-color production printing will include at least single color measuring fields in the primary colors Color measuring fields, preferably in cyan, magenta and yellow, and lines in the basic colors printed on a printed product, the individual color measuring fields at least one for Obtaining suitable color values or color density values or area coverage Have color measuring area.
  • the measuring fields and lines are optically scanned and the remitted Light is evaluated, using register values by measuring the metric layers of the lines to each other can be obtained.
  • At least one is used to form the measurement fields Color strips to determine if necessary also the register, but in any case the Sliding and / or duplicating, in the same pressure together with the color measuring surface of the Measuring field printed, which in relation to the dimensions of the color measuring surface of his Measuring field is narrow and in a predetermined, also in relation to the dimensions the color measurement surface runs a small lateral distance to the color measurement surface.
  • Sliding and Duplicate values are determined by measuring zones thus formed between each Color measurement area and the color strip of the individual measuring fields.
  • Image areas of the printed product can advantageously serve as measuring fields.
  • the measurement fields are preferably recognized by image analysis.
  • measuring fields are in the form of a compact measuring field block printed side by side in such a way that their side-facing color stripes face each other butt with an exact register or a specified narrow distance from each other.
  • the image processing process preferably comprises a color separation, the generation of a Binary image and a feature-specific mathematical algorithm for determination the shift and duplication values, register values and color density values or area coverage.
  • a diagnosis can be made on the basis of the quality data obtained will.
  • the measures preferably include compensation of the pressure characteristics, which is both material and printing unit and machine specific.
  • a correction of the press setting can be made from the diagnosis and the quality data obtained calculated and the printing press with these correction values can be controlled.
  • Diagnosis is particularly preferred in the form of a computer program following the given decision tree.
  • the diagnosis and the optional calculation of a correction of the Press setting preferably created with a neural network.
  • the diagnosis and the optional calculation of a correction of the press setting is preferably created with fuzzy logic.
  • a particularly preferred measuring device has a sensor, preferably a photoelectric Sensor, with spectral or at least 3-area and two-dimensional spatial Resolution on.
  • a CCD color camera is preferably used, which is placed on a microscope is mounted.
  • measuring fields are arranged individually and in suitable measuring field blocks
  • Subcombinations can also be printed on the image and distributed to those interested Still measure quality data using a single meter.
  • the measuring device can be moved over the continuous printed product arranged. From the prepress stage, the traversing control of the measuring device becomes the locations of the measuring fields or measuring field blocks to be probed.
  • the measuring field shown in FIG. 1 comprises a color measuring surface F with lateral ones Color strips S.
  • the color measuring surface F has the shape of a square.
  • One of the narrow, rectangular ones runs parallel to the edges of each of the four square sides Color stripes S.
  • a color-free zone Z i.e. a Zone Z, at least in the printing of the measuring field, is formed, its width and so that the area is exactly specified at the ideal pressure.
  • the minimum size of the color measuring area F is determined by the grid size of the printing process, i.e. the grid point size taking into account the available camera resolution or the spatial resolution of the sensor and a sufficiently meaningful statistic given.
  • the color measuring area F which is square in the exemplary embodiment, can be straight within the plugged frame basically only rectangular and basically even arbitrary, but predetermined in a defined manner.
  • the color stripes S do not necessarily have to run parallel to the edge, but the color-free zones Z must likewise, provided that the ideal pressure is present, it must be defined by its borders.
  • the shape of the measuring field shown facilitates the actual probing analysis of the measurement results of the measuring field. This is also suitable Form especially for the combination of several such measuring fields into one compact measuring field block.
  • Such a compact measuring field block is shown in FIG. 2. It exists in the exemplary embodiment from twelve measuring fields, which are combined into a 3x4 grid-like measuring field block are. The individual measuring fields are labeled Al to D3.
  • the compact measuring field block for multi-color printing in general i.e. for one any number of basic colors
  • Fig. 2.1 shows.
  • An exemplary measuring field block for 8-color printing is finally shown in Fig. 2.2.
  • the following is only always refer to the measuring field block of FIG. 2 for four-color printing, for example taken.
  • Two measuring fields, which are printed side by side so that their are each other facing color strips 3 have the narrow spacing a from each other are shown in Fig. 2.3 shown. In the case of an ideal register, a should be between 0 and a maximum of 400 micrometers lie.
  • One between the side edge of the measuring surface F and the neighboring one Strip S formed distance is advantageously not more than 0.3 mm and is in Embodiment about 0.1 mm, so that on the one hand the measuring field is small Has dimensions, but still pushing and / or duplicating in full Extent can be determined.
  • measuring field A1 is indicated by a solid tone field in black educated.
  • the measuring field A2 is a grid in which the color black with its nominal area coverage is printed.
  • the measuring field B1 is a Combination measuring field, in which the three primary colors cyan, magenta and yellow each with their nominal area coverage are printed on top of each other.
  • the measuring fields A3, B2 and C1 are represented by single color grids with nominal area coverage in these three primary colors.
  • the three are in the measuring fields B3, C2 and D1 Basic colors printed in full tone individually.
  • D2 and D3 are further combination measuring fields, in each of which two of the primary colors with nominal area coverage are printed on top of each other.
  • the color black can also be used as the base color, i.e. as the fourth basic color, be designated.
  • the measuring fields A1 to D3 each have an extent of approximately 1.65 x 1.65 mm 2 and the compact measuring field block with twelve such measuring fields has an extent of 6.6 x 5 mm 2 .
  • the miniaturized measuring fields designed in this way are also printed in selected image areas or, as shown, as a compact measuring field block on a printed product to be checked and then recorded inline, online or offline using a CCD color camera mounted on a microscope. The picture could also be taken at one or more image points using a photoelectric sensor with spectral and two-dimensional spatial resolution.
  • the captured images are digitized and then software using a feature-specific algorithm evaluated directly.
  • the data can also be saved in the individual colors separated and the binary image thus generated with a corresponding feature-specific mathematical algorithm can be evaluated. A combination both methods are also possible.
  • the color strips S of the measurement fields B3, C2, D1 and A1 serve Determination of the register of cyan, magenta, yellow and black in circumferential and in Side direction. Starting from the cyan measuring field B3, the relative positions of the Measuring fields C2, D1 and A1 for magenta, yellow and black and thus any register deviations determined. Pushing and duplicating is determined by the fact that on these Measuring fields each the unprinted zone Z between the color measuring areas F and the Color strip S is measured.
  • the color measuring areas F of the same measuring fields B3, C2, D1, A1 are used for the determination the solid density of the corresponding colors.
  • the area coverage of black, Yellow, magenta and cyan determined.
  • the register and shift as well as duplication values could can also be determined using these single-color grids.
  • the measuring fields C3, D3 and D2 in each of which two of the three primary colors yellow, magenta and Cyan are printed one above the other in grid tone and the measuring field B1, in which all three of these Basic colors are printed on top of each other in a grid tone, serve to determine the Color values and the color acceptance in the two and three-color overprint.
  • the targeted combination of individual measuring fields can be used for pushing and duplicating and generate the register qualitatively amplified signals, e.g. B. by the combination of Measuring fields B1, C1 and D1 for the basic color yellow, with B2, C2 and D2 for the basic color Magenta.
  • a preferred image processing comprises a photoelectric sensor with spectral and two-dimensional spatial resolution and image analysis hardware and software that in principle, however, can also be formed by hard-wired hardware, and a digital computer, preferably a personal computer.
  • a digital computer preferably a personal computer.
  • the relevant image points of the compact Measurement blocks selected and the recorded signals for example by means of Matrix operations in XYZ values and subsequently in LAB values and density values transformed.
  • the compact can be touched per touch Measurement field blocks six register values, four full tone density values, four dot gain values, three Ink acceptance values for the basic colors, four shift and duplication values and four Color locus vectors and four color distances of the secondary and tertiary chromatic colors, in total that is, 29 measured or characteristic values can be determined.
  • Figures 3 and 4 show decision trees, following them based on the won Quality data a diagnosis is made. Based on these decision trees there is also one Optimization of color reproduction possible in multi-color print runs.
  • the illustrated Decision trees can be refined by adding more quality data, such as the color values of the primary colors, data on ink and water flow on the printing press, Color material temperature, air temperature and humidity or image data of the printed subjects are included.
  • color deviations by adjusting the color and / or Dampening solution guidance on the printing press can be corrected.
  • the branches represent random points. Each branch is based on the determined quality data decided on which path further to the right is preceded. There are both exclusive branches, each of which only a further path should be followed, and not exclusive Branches where progress is possible on more than one continuing path is.
  • a color deviation due to a disturbance of the tone value increase and a Trapping disorder is caused.
  • both the color deviation causing rheology problem and trapping disorder i.e. it is a non-exclusive branch at the random point.
  • each path in the decision tree ends with a on the right Recommended action.
  • the correction of one color material-related rheology problem rectifying a trapping disorder, rectifying of pushing or duplicating, the recalibration of the printing characteristics of the individual colors or recalibrating the color profile in terms of color management.
  • a further differentiation of the recommendations for action is also possible. So can for example, the request to fix pushing or duplicating with an indication of possible causes, e.g. on the web tension, paper properties or the properties of rubber blankets.
  • Both decision trees shown as examples show how effective and Meaningful data compression automatically a quality assessment and, in the case too large deviations, a diagnosis combined with a recommendation for action is generated becomes. This is not enough, for example the known ones for each characteristic circulation-related statistical parameters such as minimum, maximum, mean and Automatically calculate and output scatter.
  • measuring fields according to the invention or compact measuring field blocks or It is a combination of these in combination with image analysis and decision tree possible, the conventional tools of the based on densitometry and colorimetry Optimization of color reproduction with the new tools of color management to unite an overall system.
  • the decision tree you can use it to derive the diagnosis and the Recommendations for action also include neural networks or unsharp logic algorithms (Fuzzy logic) or a combination thereof.
  • the neural Networks have the advantage that they can be trained using test patterns.
  • each of the two Measuring field blocks have two in the circumferential direction of a printing cylinder one behind the other or in Measuring fields A1 and A2 arranged next to one another in the longitudinal direction of the printing cylinder.
  • the two measuring fields A1 and A2 can be two full-color single-color fields or trade two single-color grids in two different primary colors.
  • the measuring fields A1 and A2 can each be of the type of the measuring field according to FIG. 1, i.e. be formed with a color measuring surface F and lateral color strips S. You can however, it can also be designed as a pure color measuring surface F without lateral color strips.
  • the two measuring field blocks according to FIG. 5 contain in addition to those of FIGS. 2 to 2.3 two groups of lines L.
  • One group of lines L points circumferentially and the other transverse to it in the longitudinal direction of the impression cylinder, i.e. in the lateral direction.
  • the left measurement field block in FIG. 5 there are two lines for the circumferential register and the Page register provided.
  • the four lines L des are sufficient left measuring field blocks already completely for determining register deviations in Circumferential and lateral direction.
  • One of the two is in the circumferential direction and one of the two lateral lines L in the reference color and the other Line printed in the further basic color to be coordinated. From the survey the distance between the two running in the same direction Lines L, generally the area enclosed between these two lines L. measured, the register deviation, i.e. the register, definitely.
  • the right-hand measurement field block of FIG. 5 shows in FIG A third line L on the circumferential direction.
  • the three circumferential Lines L are two printed in the reference color and the third in the other basic color.
  • the lateral direction there are again only two lines L, one for the reference color and one for the further basic color.
  • Two lines L printed in the measuring field block can be used independently of the measuring device the measurements can be compared using the evaluation method.
  • FIG. 6 shows an expansion of the measuring field blocks shown in FIG. 5.
  • all register values can already be printed in four directions in the lateral direction are determined if of the lines L drawn in FIG. 6 in the lateral direction in each of the four primary colors, including black, at least one line L is provided.
  • the measuring field block according to FIG. 6 is a measuring field block for a two-color printing are two of the five measuring fields shown as single color solid tone fields, two more as single color grid fields, in particular halftone fields, and the fifth field is designed as a suitable combination measuring field.
  • the measuring field block 6 would therefore already have all the register values of interest in two-color printing and a wealth of densitometric and colorimetric values with a single touch deliver. Furthermore, in this case there are at least two lines in both directions L printed in the reference color.
  • the distance b between two adjacent measuring fields is ideally approximately 0.5 mm with about 0.1 mm wide lines L, i.e. the distance between the lines L and neighboring measuring fields is then approximately 0.2 mm.
  • the distance b should not be more than about 1 mm and should be as possible to obtain noise-free measurement signals can also be no less than about 0.1 mm.
  • FIG. 8 shows a measuring field block with integrated lines L
  • the measuring fields A1 to D3 have the same color assignment as that of the measuring field block according to FIG. 2. Indeed are the measuring fields A1 to D3 of the block according to FIG. 8 only as color measuring fields F. executed, i.e. A1 to D3 have no lateral color stripes S.
  • At least one line L for each of the two is integrated for each of the printing inks Directions in which the register deviations are to be determined.
  • the Both directions can be shown in the arrangement of a 3 x 4 measuring field block in the Measuring field block saves five lines L and four lines L in the other direction be provided so that two of the lines L in. running in one of the two directions the reference color can be printed. Additional lines could, for example, between adjacent lines L may be provided. Such an additional line L is indicated by dashed lines in FIG. 8.
  • a measuring field block is shown in FIG. 9, in which the Measuring fields A1 to D3, provided that the register is exact, meet immediately.
  • the Lines L run across the measuring fields A1 to D3.
  • the measuring field block according to FIG. 9 On the one hand, the measurement value signals for determining the register deviations are particularly compact however contain comparatively high noise components, which are caused by corresponding Evaluation methods are to be filtered out.
  • the integrated lines L run without pressure to determine the register deviations the two other primary colors to the reference color; preferably run them through the middle of the strips. 10 corresponds to that of FIG. 8, but with the difference that in addition to the lines L, the individual measuring fields A1 to D3 have lateral color stripes S, i.e. each individually with different color assignments correspond to the measuring field of FIG. 1.
  • the lines L are preferably used to determine the Register values and the lateral color stripes S preferably for determining sliding and / or duplication values.
  • both the measurement fields and the Lines L each have a grid, its rows and columns or its lines in the circumferential direction and point in the lateral direction.
  • the two grids are placed one on top of the other.
  • the lines L in the circumferential direction and also in the lateral direction parallel and equally spaced arranged to each other.
  • Other arrangements of the lines L are fundamental possible, the exact alignment in the circumferential and lateral direction and also the parallelism and spacing equality is preferred, however. In the specific case of use however, deviations from each of these individual characteristics.

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  • Spectrometry And Color Measurement (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Printing Methods (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Recording Measured Values (AREA)
EP97810655A 1996-09-23 1997-09-15 Bloc de mesure et procédé d'acquisition des données de qualité dans des machines d'impression multicoloré Expired - Lifetime EP0836942B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19639014 1996-09-23
DE1996139014 DE19639014C2 (de) 1996-09-23 1996-09-23 Messfeldgruppe und Verfahren zur Erfassung von optisch drucktechnischen Größen im Mehrfarben-Auflagendruck
DE19738923 1997-09-05
DE1997138923 DE19738923A1 (de) 1997-09-05 1997-09-05 Messfeldblock und Verfahren zur Erfassung von Qualitätsdaten im Mehrfarben-Auflagendruck

Publications (2)

Publication Number Publication Date
EP0836942A1 true EP0836942A1 (fr) 1998-04-22
EP0836942B1 EP0836942B1 (fr) 2001-12-12

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Application Number Title Priority Date Filing Date
EP97810654A Expired - Lifetime EP0836941B1 (fr) 1996-09-23 1997-09-15 Groupe de champs de mesure et procédé pour la saisie des données de qualité dans les éditions (tirages) d'impression polychrome
EP97810655A Expired - Lifetime EP0836942B1 (fr) 1996-09-23 1997-09-15 Bloc de mesure et procédé d'acquisition des données de qualité dans des machines d'impression multicoloré

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EP97810654A Expired - Lifetime EP0836941B1 (fr) 1996-09-23 1997-09-15 Groupe de champs de mesure et procédé pour la saisie des données de qualité dans les éditions (tirages) d'impression polychrome

Country Status (7)

Country Link
US (2) US6192801B1 (fr)
EP (2) EP0836941B1 (fr)
JP (2) JPH10305651A (fr)
AT (2) ATE202520T1 (fr)
DE (2) DE59703899D1 (fr)
DK (2) DK0836942T3 (fr)
ES (2) ES2160315T3 (fr)

Cited By (2)

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EP1197331A1 (fr) * 2000-10-13 2002-04-17 Dainippon Screen Mfg. Co., Ltd. Presse équipée du dispositif de mesure des champs colotimétriques
DE102005060893C5 (de) * 2005-12-20 2019-02-28 Manroland Goss Web Systems Gmbh Verfahren zur Ermittlung eines drucktechnischen Messwertes

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US7227666B1 (en) 2000-09-01 2007-06-05 Adobe Systems Incorporated Dynamic selection of rendering intent for color proofing transforms
US7161710B1 (en) 2000-09-01 2007-01-09 Adobe Systems Incorporated Composite rendering intent for color proofing applications
US6796240B2 (en) 2001-06-04 2004-09-28 Quad/Tech, Inc. Printing press register control using colorpatch targets
ATE552974T1 (de) 2001-07-04 2012-04-15 Dainippon Screen Mfg Vorrichtung und verfahren zum messen des farbmessstreifens
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DK0836942T3 (da) 2002-02-18
ATE210555T1 (de) 2001-12-15
US6109183A (en) 2000-08-29
DE59703899D1 (de) 2001-08-02
DE59705757D1 (de) 2002-01-24
JPH10305652A (ja) 1998-11-17
JPH10305651A (ja) 1998-11-17
ATE202520T1 (de) 2001-07-15
EP0836942B1 (fr) 2001-12-12
DK0836941T3 (da) 2001-10-22
ES2169342T3 (es) 2002-07-01
ES2160315T3 (es) 2001-11-01
US6192801B1 (en) 2001-02-27
EP0836941B1 (fr) 2001-06-27
EP0836941A1 (fr) 1998-04-22

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