EP1156384B1 - Méthode et dispositif d'ajustement de la régistration dans une imprimante couleur et imprimante couleur - Google Patents

Méthode et dispositif d'ajustement de la régistration dans une imprimante couleur et imprimante couleur Download PDF

Info

Publication number
EP1156384B1
EP1156384B1 EP01111089A EP01111089A EP1156384B1 EP 1156384 B1 EP1156384 B1 EP 1156384B1 EP 01111089 A EP01111089 A EP 01111089A EP 01111089 A EP01111089 A EP 01111089A EP 1156384 B1 EP1156384 B1 EP 1156384B1
Authority
EP
European Patent Office
Prior art keywords
image
positions
printing
cylinders
values
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
EP01111089A
Other languages
German (de)
English (en)
Other versions
EP1156384A3 (fr
EP1156384A2 (fr
Inventor
Donald Buch
Christopher Liston
Robert Peffer
John Robert Thompson
Ingo Dreher
Heiko Hunold
Patrick Dr. Metzler
Michael Mordhorst
Stephan Dr. Pareigis
Karlheinz Dr. Peter
Ralph Petersen
Frank Pierel
Günther Voss
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP1156384A2 publication Critical patent/EP1156384A2/fr
Publication of EP1156384A3 publication Critical patent/EP1156384A3/fr
Application granted granted Critical
Publication of EP1156384B1 publication Critical patent/EP1156384B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0142—Structure of complete machines
    • G03G15/0178—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image
    • G03G15/0194—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image primary transfer to the final recording medium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/01—Apparatus for electrophotographic processes for producing multicoloured copies
    • G03G2215/0103—Plural electrographic recording members
    • G03G2215/0119—Linear arrangement adjacent plural transfer points
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/01—Apparatus for electrophotographic processes for producing multicoloured copies
    • G03G2215/0151—Apparatus for electrophotographic processes for producing multicoloured copies characterised by the technical problem
    • G03G2215/0158—Colour registration
    • G03G2215/0161—Generation of registration marks

Definitions

  • the invention relates to a method for register setting on a multi-color printing machine with color printing units associated with different ink colors, means for generating images, in particular of electrostatic latent images on the image cylinders, a support for printing substrates and image transfer points for the transfer of partial color images of the color printing on the Printing substrates, wherein an association of the image forming on the image cylinders to achieve a register match of the partial color images is made during printing.
  • the invention further relates to a device for register setting according to the method described above on a multi-color printing machine with color printing associated with color printing units with image cylinders, means for generating images, in particular of electrostatic latent images on the image cylinders, a support for printing substrates and image transfer points for the transfer of Partial color images of the color printing units on printing substrates, position detecting sensors, and at least one adjusting means for associating the positions of the image forming sites on the image cylinders with the printing substrates to achieve registration of the partial color images during printing. Furthermore, the invention relates to a suitably equipped multi-color printing machine.
  • the printing of color representations takes place in that several partial color images are printed one above the other. These are usually the Colors yellow, magenta and cyan as well as black. If necessary, special colors are added. By overprinting these colors, all color compositions can be achieved.
  • the quality of the prints depends essentially on the register-containing overprinting of the partial color images. In conventional, non-automated printing processes, the printing forms are corrected by means of trial prints and with register marks printed with them, until an exact overprinting, that is to say a registration of the print, is achieved.
  • the image cylinders are each described by means of an image-forming device with pixels, for example, by generating electrostatic charges and providing them with adhering color pigments. Thereafter, the color pigments are transferred to a printing substrate.
  • registration can be achieved by controlling the image forming devices accordingly. Since the imaging is new for each print, it is not necessary to make a one-time adjustment as in the conventional printing methods, but it is possible to provide a preset and a control which makes corrections for each individual print. Of course, this not only applies to the application of electrostatic latent images but also all other printing processes in which pixels are applied by means of a digital control.
  • the GB-A-2226736 discloses a printing machine having a plurality of timed printing units.
  • time-adjusted calibration tables are insufficient. Irregularities which can not be reflected in differences of time periods, which rotational angles of the image cylinders can be assigned, can not be taken into account. Just for the latter does not help a proposal of US 5,287,162 To recreate the calibration tables over and over again, since only a long-term and slow drift of the values, but no short-term, non-angular positions of the image cylinder assignable differences can be considered.
  • a typical example of such irregularities which are not reflected in differences in time periods are fluctuations in the speed of the drive system, since the assignment thereof to certain rotation angles of the image cylinders or other cylinders is not possible because these fluctuations are not synchronous with the angular positions of the image cylinders or other cylinder.
  • Regulation by a calibration table of the type proposed with time values associated with the rotation angles of the image cylinders would thus produce errors rather than eliminate errors.
  • the poles of the drive electric motors occur as the cause of frequency-like speed fluctuations of the drive, which due to the different transmission paths also have no simultaneous occurrence on all image cylinders and therefore lead to time-position differences on the individual image cylinders. These frequency-like fluctuations are sufficient to cause errors in the register setting.
  • Such errors can already occur at the beginning of the image or make themselves noticeable in the image quality as an error in subregions of images, for example as a tab-shaped register inaccuracies. Since such frequency-like fluctuations of the drive system overlap with other errors, such as the ovality of image cylinders, it is no longer possible with reasonable effort to create calibration tables for correction. These could no longer be based on the angular positions of the image cylinders or other cylinders for one revolution or for a manageable sequence of revolutions, but - as far as this is possible due to the complexity - it would have to take a course of calibration values over complex machine constellations until the occurrence of a repetition situation be determined.
  • the invention is therefore based on the object, a method, a device and a printing machine of the type mentioned in such a way that a high precision of the register setting with reasonable effort, in particular as possible without waste printing, can be achieved. It should be possible both a quick and accurate as possible preset as well as a constant fast correction of the register setting.
  • the object is achieved with respect to the method according to claim 1 according to the invention in that a time-independent position assignment of the image generations on the image cylinders to the printing substrates of at least one defined area of all partial color images.
  • the object is achieved in that the sensors are designed to detect the positions of image and substrate-carrying elements and that at least one adjustment means is designed such that they with respect to the positions of the image forming on the image cylinders to the printing substrates assigns at least one defined area of the partial color images time independent.
  • the invention is based on the observation that a presetting and / or regulation of a register, in which detected times are related to each other, leads to an increase in the complexity of error overlays, as to the actual register error causes still errors by the determination of positions by times to be added. This addition of a further cause of the error is problematic for countermeasures because the latter errors are short-term errors and behave asynchronously with the angular positions of the image cylinders.
  • the invention is further based on the finding that, if one instead of times the positions directly related to each other, the non-synchronous with angular positions of cylinders behaving error to a large extent no longer occur, as they are from the time-position assignment originate. So they do not influence a setting of the register then, if one makes a direct mutual assignment of positions to the control or regulation basis.
  • Such immediate position assignments may for example be designed such that one Distances or paths or angles assigns each other.
  • the position assignment according to the invention is possible with or without calibration table in various ways. For example, angular positions or even paths of surfaces of image and substrate-carrying elements can be assigned to one another. A combination of angular positions and paths is possible. In this case, one of the elements is expediently taken as a reference.
  • An embodiment of the method therefore proposes that, for the partial color images, the at least one defined area is respectively generated on the image cylinders at predetermined positions of the carrier. Another proposal consists in assigning at least one defined area of the partial color images of the other color printing units to at least one defined area of the partial color image of a reference printing unit and then assigning it to a position of the carrier.
  • the at least one adjusting device is designed such that it causes the generation of at least one defined area of all the partial color images on the respective image cylinders to predetermined positions of the carrier.
  • the adjustment device may also have another appropriate training.
  • the position assignments of the carrier provides a proposal that the angular positions of the drive roller of the wearer are used. Also for the position assignments of the image cylinder whose angular positions can be used. Another possibility is to use the paths of the surface of the carrier for the position assignments of the carrier. Accordingly, the paths of the surfaces of the image cylinder can be used for the position assignments of the image cylinder.
  • At least one sensor is designed as an angle position sensor, wherein a sensor is proposed for each element whose angular positions are to be detected.
  • at least one adjustment device must be designed for the assignment of angular positions.
  • at least one sensor for detecting a concentricity error can be provided, as well as at least one adjustment device which determines positions from angular positions and concentricity errors. The purpose is that it depends on the actually covered paths of the defined areas of the partial color images and run-out errors cause the angular positions are not an exact measure for it. A corresponding correction can be made by the proposed detection of the concentricity errors, said errors are avoided and still the relatively simple position detection and assignment by the angular positions is possible.
  • At least one sensor is designed to detect paths, wherein a sensor is proposed for each element whose paths are to be detected.
  • an embodiment may consist in that sensors are designed for the detection of path markings and the latter are attached to the corresponding surfaces. Then at least one adjustment device must continue to be designed for the assignment of paths.
  • the positions of image transfer cylinders are also included in the position allocations.
  • the positions of image transfer cylinders are also included in the position allocations.
  • the position assignments of the image transfer cylinder whose angular positions can be used or it is possible that the paths of the surfaces of the image transfer cylinder of the position assignment serve the same.
  • at least one sensor must then be provided in each case for detecting the positions of the image transfer cylinders, and these positions must be transmitted to at least one setting device for calculating the assignment.
  • both an angular position sensor optionally combined with a sensor for detecting a concentricity error, can be used here, or it is possible for a sensor to be provided for detecting paths.
  • An embodiment of the method according to the invention provides that the mutually associated defined regions of the partial color images are the image beginnings.
  • at least one adjusting device is designed such that it specifies the positions of the carrier in which the beginning of the imaging of the image cylinder takes place.
  • the mutually associated defined areas are the areas of the partial color images into which the image areas are subdivided.
  • the areas of the partial color images may be single or a number of pixel lines of the Trade partial color pictures.
  • an assignment of the pixel lines of the partial color images takes place, in the latter case an assignment of the number of pixel lines in order to achieve register matching.
  • An expedient for the assignment of angular positions embodiment provides that the number of pixel lines of a range results from the assignment to predetermined angular intervals of the image cylinder.
  • the lateral position of the regions can also be determined and adjusted.
  • errors relating to the lateral extent of the regions are also determined and corrected.
  • At least one adjusting device is designed with respect to the method such that it specifies the positions of the carrier in which the imaging of the image cylinder takes place with the regions into which the image surface is subdivided.
  • the areas may be strips which extend across the image area transversely to the direction of movement.
  • these strips can also be divided again transversely, or a lateral adjustment is made which relates directly to the distances of the pixels.
  • a particularly advantageous embodiment of the invention provides that the positions are determined by means of register marks. Such determination of positions can be made both prior to pressure being made to make the adjustment and during pressure to make corrections to the values.
  • the register marks preferably have arranged in the transport direction, in a predetermined manner spaced elements, wherein the distances are detected. Such register marks are printed by each color printing unit, whereby individual elements printed by the individual color printing units can form rows or a plurality of spaced-apart elements can be successively printed by individual color printing units.
  • the register marks may be formed continuously or in groups, which in turn may have defined distances between them. As a result, the positions mentioned can be determined and assigned. Should the Positions are determined before printing, it is useful to print the register marks directly on the carrier and remove after determining the position.
  • the register marks are printed in the space of the carrier not covered by printing substrates. However, it is also possible to print the register marks on paper, this can be a handsheet or it is possible to use image free edges of the printing substrates.
  • at least one sensor for detecting register marks may be provided. This is expediently designed such that it detects the distances of the spaced apart in a predetermined manner elements of the register marks.
  • the values are then given to image-start adjustment means and to adjustment means for the defined regions of the part-color images.
  • These adjustment devices are provided with machine-specific denominations, designed to take into account correction values for the determination of the positions on the image cylinders before the start of printing. If this is a machine in which the image cylinder directly transfer the image to the substrates, so the path from the image forming stations to the image transfer points of the image cylinder is decisive.
  • the path from the image transfer point between the image cylinder and the image transfer cylinder to the image transfer point is added to the substrate.
  • the adjusting devices can be designed such that they take account of correction values for the positions after the start of printing.
  • these positions are defined for the image formation of the others Determined areas on the individual image cylinders following the former and used in this order for control or regulation. In this way, first the register for the position of the beginning of the partial color images and then the position for individual image areas is set.
  • a noise ie very short-term fluctuations (to avoid a rule instability) are eliminated for the evaluation of the detected values.
  • the remaining variations in the detected position values which are assignable in magnitude and repetition of a repeatable position of a cylinder, are separated from longer term variations.
  • the variations in the detected position values, which are assignable in magnitude and repetition to a repeatable position of an image cylinder are included in at least one calibration table for that image cylinder and used for error compensating control of the positions of the image forming sites to produce the images of the respective image cylinders.
  • the calibration tables are expediently created both for the image beginnings of the partial color images and for the defined regions of the partial color images.
  • deviations of the actual positions from the desired values that can be assigned to their repeatable positions in one movement cycle can be detected and included in the calculation of the image generation sites for the purpose of eliminating these deviations.
  • these are the image transfer cylinders.
  • calibration tables can be created to then include all the calibration tables in the calculation of the positions of the imaging sites. Longer-term fluctuations attributable to non-repeatable positions of a cycle of motion are accounted for by continuous renewal of the calibration tables. The calibration tables are corrected before each print job, but it is also possible to continuously correct them during printing.
  • such calibration tables can be stored in corresponding files for the Control of the adjustment facilities are available.
  • Such files are initially present as machine-specific denominations and are taken into account by adjustment means already prior to printing as correction values for the positions of the image generations on the image cylinders.
  • correction values for the positions on the image transfer cylinders may be taken into account, the latter correction values also being implemented via a correction of the image generations on the image cylinders for the purpose of register registration.
  • printing takes place, it being advantageous to first print register marks and measure their position before the print job is carried out in order to take into account the correction values thus determined for determining the positions of the image generations.
  • register marks can also be printed when processing a print job in order to record changes and make further corrections.
  • Boundary conditions that affect the register should be taken into account as soon as possible by correcting the position values. For good print quality and avoidance of waste, it is therefore desirable to include such changes as early as possible in the calculation of the position values. For this reason, it is proposed that longer-term errors of the determined position values, which can not be assigned by repeating a repeatable position of an image- or substrate-carrying element, be taken into account by detecting and including their influencing variables in the correction for the register control. This detection and inclusion of the influencing variables in the correction expediently takes place on the basis of stored empirical values.
  • the adjustment means are designed such that they take account of correction values for the determination of the positions before the start of printing, the detectable influencing variables can be assigned and are available as at least one selectable file with empirical values.
  • the selection of such a file can be done via an input device, so be activated by a manual input, or it is also possible that the selection by an adjustment means due at least a measurement of at least one influencing variable takes place, ie the inclusion of a file for correction by a measurement of the influencing variable is activated.
  • an influencing variable can be measured with respect to its effect on the register and a correction of the image formation can take place in accordance with these deviations.
  • Another influencing factor is the type of paper, in this case the empirical values for the respective paper type are filed and with the supply of a new type of paper the corresponding file is used. Also, the toner profile of the image to be printed is of influence, whereby the consideration is possible in that the color printing machine is equipped with a device for measuring a toner profile or this previously measured and the control is entered. Expediently, empirical values for different toner profiles are then available.
  • a sensor for detecting a displacement of a substrate is provided on the carrier and the adjusting devices are formed in this way are that the positions of the images are corrected to compensate for this shift.
  • the circumference of the drive roller of the carrier in relation to the distance of the image transfer points of the color printing units is dimensioned such that the Repeat the assignment of the angular positions of the drive roller to the image cylinders.
  • the scope of the drive roller of the carrier in the distance of the image transfer points of the color printing units can be inserted. It can be half or preferably integer insertable.
  • the said embodiment is also useful when the paths of the carrier are detected by means of a Winkel einsgebers the drive roller, because the not detected by the angular position sensor speed differences of the carrier by non-circularities of the drive roller no longer need to be detected, since their influence in the said manner already is off.
  • the correction is set to a middle range within a tolerable range of detected travel values.
  • an average value can be set at different position values transversely to the transport direction.
  • the calculated deviations it is possible for the calculated deviations to be weighted for calculating the mean value, for example a quadratic weighting is proposed.
  • Other weights are of course possible, they are made in such a way that the influence of the deviations on the image quality is at a minimum. Expediently, the values lying in the middle range of the color printing units to the mid-range value of a reference printing unit.
  • the arrival of a printing substrate be detected and then the positions for the respective beginning of the imaging of the image cylinders as positions, e.g. B. can be determined as paths of the carrier from a detection point for printing substrates.
  • These calculations are first made on the basis of the pre-determined and entered values, with subsequent corrections being made by at least one device detecting corrections of the positions due to the detection of the positions during printing and transmitting these to the adjustment means for execution.
  • the device for register setting that at least one Device for determining the corrections for the image beginnings with the sensor for detecting the positions of the carrier and with the sensor for detecting the register marks is connected.
  • the means for determining the corrections obtains the data on the deviations of the positions of the register marks from the pre-calculated positions and thereby can calculate and cause the corrections.
  • a device for determining the corrections for the areas of the partial color images, in which the image areas are subdivided is connected to the sensor for detecting the positions of the carrier and to the sensor for detecting the register marks. In this way, also for the areas of the partial color images, in which the image areas are divided, the differences of precalculated positions to the detected by the register marks positions detected and the corrections are calculated.
  • the starting signal for the image beginnings is associated with the start of the remaining areas in which the image areas are divided by a device for emitting start signals for the image beginnings simultaneously start signals to means for assigning the areas in which the image area is divided, where this device is connected to the sensor for detecting the positions of the image cylinder and assigns to these positions the regions in which the image surface is subdivided.
  • a sensor for detecting a printing substrate supplied to the printing press be disposed on the path of the printing substrates to the printing machine and connected to the adjusting means. wherein the calculation of the mutual association of the positions of the image forming sites is started when a printing substrate is detected. Since this sensor can not detect its leading edge accurately enough on the path of the printing substrates to the printing machine, it is further proposed that a sensor for accurately detecting the leading edges of printing substrates on the support and connected to devices that calculates the paths that the printing substrate From this sensor travels to the positions of the beginning of the respective imaging, and then to cause the beginning of the imaging positionally correct.
  • a sensor which is arranged on the carrier take over both functions, if a sufficient distance is available.
  • the register setting device may be arranged to perform all of the aforementioned methods, and vice versa.
  • the multi-color printing machine proposed according to the invention may have all of the device features described above and may be designed so that it can operate according to all the above-described method features.
  • Fig. 1 shows a schematic representation of the inventive function of a multi-color printing machine 1.
  • Multi-color printing machines 1 usually have four Color printing units 6, 6 ', 6 ", 6''', as shown in Fig. 4 is shown.
  • Fig. 1 only two color printing units 6 and 6 'have been drawn, since this is sufficient for the explanation of the function according to the invention.
  • the presentation must be supplemented mentally to the effect that normally four or sometimes more color printing units 6, 6 ', 6 ", 6''' in the manner described register matching must be brought.
  • These are typically digital imaging, electrostatic latent images, or direct or other digital imaging such as ink-jet.
  • Multi-color printing machines 1 can be designed such that the transfer of the images from the image cylinders 2, 2 ', ... takes place directly on printing substrates 15.
  • the illustrated multicolor printing machine 1 additionally has image transfer cylinders 13, 13 ',..., The images being transferred from the image cylinders 2, 2',... To image transfer points 53, 53 ', ... to the image transfer cylinders 13, 13', ... be transmitted.
  • the image transfer cylinders 13, 13 ',... Then finally transfer the images to the printing substrates 15 at image transfer points 5, 5', 5 ", 5" '.
  • the printing substrates 15 are transported by a carrier 4 in the direction of the arrow 33. In doing so, they successively pass through the image transfer points 5, 5 ', 5 ", 5''' at each image transfer point 5, 5 ', 5", 5''' of a color printing unit 6, 6 ', 6 ", 6'” Partial color image 7, 7 ', ... transferred to the printing substrate 15.
  • the problem to be solved by register settings is that the partial color images 7, 7', ... must be printed extremely precisely on each other in order to achieve a high print quality electrostatic or similar digital printing processes, the images on the image cylinders 2, 2 ', ... by means of means 3, 3', ... newly generated for each individual pressure, transmitted and then by a device 61, 61 ', ... Such a device 61, 61 ', ... is in the Fig. 2 and 4 located.
  • the invention now provides for register matching of the partial color images 7, 7 ',... That the positions of the production 11, 11',... Of the partial color images 7, 7 ',... To each other and to the positions 25, 25 ', ... of a printing substrate 15 are made coincident.
  • all positions 11, 11 ', ..., 8, 8', ..., 9, 9 ', ..., 12, 12', ..., 14, 14 ', ..., 22 , 22 ', ..., 25, 25', ... defined as paths or as angular positions and for the calculation of the positions of the generation 11, 11 ', ... of the partial color images 7, 7', ... are used ,
  • the paths 8, 8 ', ..., 9, 9',... Of the partial color images 7, 7 ',... Of the image production sites 11, 11',. 3 ', ... for generating images up to the image transfer points 5, 5', 5 ", 5 '''with the Because of 12, 12 ', ..., 14, 14', ..., 22, 22 ', ... of a printing substrate 15 on the support 4 are made to coincide.
  • the paths 12, 12 ',..., 14, 14',..., 22, 22 ',..., Lay the printing substrate 15 with the carrier 4 from a detection point 23 to the image transfer points 5, 5', 5 ", 5 '''of the printing units 6, 6', 6", 6 ''back.
  • Such an assignment can be done in a similar manner by using the angular positions 8, 8 ', ..., the image cylinder and the angular positions 9, 9', ..., the image transfer cylinder 13, 13 ', ....
  • the paths 12, 12 ', ..., 14, 14', ... of the carrier 4 can as angular positions 12, 12 ', ..., 14, 14', ... of the drive roller 52 of the carrier 4 detected and used for the settings.
  • the image beginnings 10 of the partial color images 7, 7 ',... are matched, and secondly also defined regions 10', 10 ",..., 10 n of the partial color images 7, 7 ',.
  • the latter serves to obtain the register accuracy achieved at the image beginnings 10 over the entire printed image.
  • the position allocation according to the invention begins with a sensor 23 which serves as a detection point 23 for the leading edge 24 of a printing substrate 15.
  • the register setting device calculates, from the detection point 23, the positions 25, 25 ',..., For example, as paths 22, 22',... That the printing substrate 15 has to cover on the carrier 4.
  • These positions 25, 25 ', ... are defined by the fact that, when they are reached by a printing substrate 15, the imaging of the image cylinders 2, 2',. ... begins.
  • the positions 25 and 25 ' are, so to speak, the positions of the path equality of the front edge 24 of a printing substrate 15 with the front edge 10 of the partial color images 7, 7', ... to the image transfer points 5, 5 ', 5 "and 5''' - or of angle equality expressed in the above angles.Of course, normally, as in Fig. 4 is drawn, at least 4 color printing units 6, 6 ', 6 ", 6''' are brought into this position match Fig. 1 represents a simplification.
  • the printing substrate optionally has a pressure-free edge , which of course would have to be included. If, starting from the positions 25, 25 ', ... a printing substrate 15 travels the paths or angles 14, 14', ... (for example of the drive roller 52), then the partial color images 7, 7 ', ... on the image cylinders 2, 2 ', ... the paths or angles 8, 8', ... back. Then the image transfer 53, 53 ', ... to the image transfer cylinder 13, 13', ... instead.
  • the right-hand print substrate 15 does not carry a partial color image
  • the middle print substrate 15 the partial color image 7 of the color printing unit 6 and the left print substrate 15 both partial color images 7 and 7 '.
  • the pressure is The transport of the printing substrates 15 takes place here by means of the carrier 4, which is designed as a belt running on rollers 52 and 52 ' 52 and the other roller is a guide roller 52 '.
  • impression cylinders 20 are attached to the image transfer points 5, 5 ', 5 ", 5'". These are used to transfer the electrically charged color particles in printing processes with electrostatic latent images on the printing substrates 15. They are in Fig. 1 and 2 However, their position can not be indicated Fig. 4 be removed.
  • FIG. 1 In the Fig. 1 are still the directions of rotation 16, 16 ', ... the image cylinder 2, 2', ... and the directions of rotation 60, 60 ', ... the image transfer cylinder 13, 13', ... located.
  • the conveying direction of the carrier 4 results from the arrow 33.
  • the Fig. 2 shows the basic structure of a register setting device for performing the inventive adjustment of the positions 8, 8 ', ..., 9, 9', ..., 12, 12 ', ..., 14, 14', ..., 22nd , 22 ', ..., 25, 25', ....
  • a detection of register marks 17, 17 ', 17 ", 17''' by a sensor 29 can also be used to detect the position, in order to detect the positions of the image cylinders 2, 2 ', ... in each case a sensor designed as an angle position sensor serves 26, 26 ', ... and for position detection of the image transfer cylinders 13, 13', ... also designed as angular position sensors sensors 28, 28 ', .... However, could also on the cylinders 2, 2', ..., 13, 13 ', ... sensors 26, 26', ..., which detect the path through path markings Fig. 4 by arrangement of such sensors 26, 26 ', ... indicated.
  • the carrier 4 is preceded by a conveyor belt 45 for feeding printing substrates 15 to the printing machine 1. If a printing substrate 15 passes the sensor 44, the calculation of the assignments of the positions 8, 8 ',..., 9, 9',... , 12, 12 ', ..., 14, 14',, 22, 22 ', ..., 25, 25', ... started. If the front edge 24 of the printing substrate 15 then hits the sensor 23, the calculations are ready and devices 46, 46 ', ... are activated which detect the travel of the paths 22 and 22' and then the start signals 48 and 48 'for the image beginnings 10 and start signals 49 and 49' for the regions 10 ', 10',..., 10 n of the partial color images 7, 7 '. In order to detect the paths 22, 22 ',...
  • the devices 46, 46 ', ... are connected to all position-detecting sensors. These are the sensors 26, 26 ', ... for detecting the positions of the image cylinders 2, 2', ..., the sensor 27 for detecting the positions of the carrier 4 and the sensors 28, 28 ', ... for detection The positions of the image transfer cylinders 13, 13 ', .... Furthermore, the means 46, 46', ... for calculating the positions 25, 25 ', ... with adjusting means 30, 30', ... connected, which the positions 12, 12 ', ... and 14, 14', ... for the image beginnings 10 calculate.
  • the adjusting devices 30 serve , 30 ', ... for the calculations of the paths 8, 8', ..., 9, 9 ', ... of the image beginnings 10 and the adjustment devices 31, 31', ... for the calculations of the paths 8, 8 ', ..., 9, 9', ... of the regions 10 ', 10 ", ..., 10 n of the partial color images 7, 7', ....
  • the adjustment devices 30, 30 ', ... , 31, 31 ', ... are formed and networked so that they can obtain all the information required for the calculations of the positions and thus can give such commands to the means 3, 3', ... for generating the images that the Image generating points 11, 11 ', ... with respect to their respective position, the vote of the positions 8, 8', ..., 9, 9 ', ... with the positions 12, 12', ..., 14, 14th ', ... correspond.
  • a first adjustment of the positions for the image generation 11, 11 ',... Is carried out by the adjustment devices 30, 30',..., 31, 31 ',... All relevant data 8, 8',. ., 9, 9 ', ..., 12, 12', ..., 14, 14 ', ..., 22, 22', ..., 25, 25 ', ....
  • the detection and assignment of the positions for example the paths or angles 8, 8 ', ..., 9, 9', ... and 12, 12 ', ..., 14, 14', ..., 22, 22 ' , ..., 25, 25 ', ... is sufficient.
  • the adjustment means 30, 30 ', ... have machine-specific nominal values 34, 34', ... of the positions 8, 8 ', ..., 9, 9',... Of the image beginnings 10.
  • the adjustment means 31, 31 ', ... also have machine-specific denominations 35, 35',... With respect to the positions 8, 8 ', ..., 9, 9', ... of the areas 10 ', 10 ",. 10, 10 n of the partial color images 7, 7 ', ....
  • These machine-specific denominations 35, 35', ... are constantly corrected to obtain a high accuracy, for the first time before a printing operation is carried out Adjusting means 30, 30 ', ..., 31, 31'; ... correction values 36, 36 ', ... via the positions 8, 8',...
  • the adjustment means 30, 30 ', ..., 31, 31', ... receive correction values 37, 37 ', ... for the positions 9, 9', ... of the Jardinübertragungszylin 13, 13 ', ....
  • These correction values 37, 37', ... originate from the sensors 28, 28 ',... for detecting the angular positions or the paths of the surfaces of the image transfer cylinders 13, 13',.
  • the distances 64 between the color printing units 6, 6 ', 6 ", 6'" and the position of the sensor 23 can also be entered. Corrections thereof may be required due to various influences, for example due to measured temperatures or due to mechanical stresses in the printing machine 1.
  • correction values 38, 38 ',... Can be empirical values for paper types, for toner application, image widths, paper widths, the fact that printing is carried out in reverse, temperature, stresses in machine parts, the displacement of a printing substrate 15 on the support 4 and so on , In this regard, reference is made to the above description.
  • These correction values 38, 38 ', ... are available as empirical values ready. They may be given to the adjusting means 30, 30 ', ..., 31, 31', ... by an input device, not shown, or it is possible to adjust them on the basis of a measurement, for example a temperature or a voltage, to the adjusting means 30, 30 ', ..., 31, 31', ... to transmit.
  • Both the machine-specific nominal values 34, 34 ', ..., 35, 35',... And the correction values 38, 38 ',... Can be available as calibration tables.
  • the machine-specific nominal values 34, 34 ',..., 35, 35',... are assigned to the angular positions, preferably the image cylinders 2, 2 ',. However, other assignments already described above are possible, then several calibration tables must be included in the calculation of the imaging stations 11, 11 ', ... on the image cylinders 2, 2',.... Tables of other values are then assigned, for example, to different temperatures or different voltages. In addition, these Eichtabellen angular positions of the image cylinder 2, 2 ', ... be assigned.
  • the correction values 38, 38 ',... Stored as empirical values are stored as files 39, 39',.
  • These register marks 17, 17 ', 17 ", 17''' are essential in that they are also associated with the carrier 4 by their positions and have, for example, regularly spaced elements 18.
  • a number of spaced elements 18 can be printed in this process successively one element 18 each of a color printing unit 6, 6 ', 6 ", 6''' is printed.
  • color printing units 6, 6 ', 6 ", 6''' successively print a plurality of spaced-apart elements 18. If the register marks 17, 17 ', 17", 17''' are not printed as continuous bands, then also the distances between the individual register mark groups are detected.
  • the register marks 17, 17 ', 17 ", 17 ''' can be printed directly on the support 4, as long as there are no printing substrates 15 on it, they can be printed on the not covered by printing substrates 15 locations of the support 4, on sample sheets or on non-image areas of the printing substrates 15, z. B. on the edges.
  • the measured values of the sensor 29 are transmitted to devices 40, 40 ',... For determining the corrections 42, 42',... For the image beginnings 10, wherein these devices 40, 40 ',... The corrections 42, 42'. , ... to the adjustment devices 30, 30 ', ....
  • These devices 41, 41 ', ... also supply the corrections 43, 43', , 31 ', ..., so that there the positions for the defined areas 10', 10 ", ..., 10 n are corrected on the basis of this feedback.
  • the Fig. 3a shows register deviations in a machine that has been set due to a time measurement.
  • the deviations 55 from the nominal value 54 of a register are plotted when measuring points are detected along a path 56 in the transport direction 33.
  • the measurement points 57 show vibration-like deviations from the nominal value 54, which is shown as a zero line.
  • Fig. 3b shows register deviations in a printing machine 1, which has been set according to the principle of the invention. Due to the register setting made there by positions, a setting with much smaller deviations is achieved. Again, the deviations 55 are applied from the setpoint 54 against the path 56 of measuring points along the transport direction 33. The oscillatory deviations as in the time control do not occur here, even if the causer, for example, the poles of the electric motor of a prime mover, still exists. The reason is that such oscillations are due to the assignment of positions at times and therefore can not influence a control.
  • Fig. 4 shows a schematic representation of a multi-color printing machine 1 with four color printing units, 6, 6 ', 6 ", 6''' .
  • This is the normal structure of a multi-color printing machine 1, but there may be even more printing units.
  • the reference numerals are identical to those already described in the remarks to the Fig. 1 and Fig. 2 has already been discussed on all the components of the machine shown.
  • the illustrated as an embodiment printing machine has the four color printing units 6, 6 ', 6 ", 6''', each of the elements gem. Fig. 1 and 2 assigned.
  • the distance 64 between two color printing units 6, 6 'or 6', 6 "or 6", 6 '''located is expediently dimensioned such that an out-of-roundness of the drive roller 52 at all printing units 6, 6 ', 6'',6''' comes simultaneously to influence. This uniform influence avoids an effect of this error.
  • the circumference of the drive roller 52 may correspond to the distance 64, it may also be a fraction of this distance 64 or a whole multiple. From the machine dimensioning an identity of the circumference with the distance 64 or a whole multiple might come into question.
  • FIG. 5 shows register marks 17, 17 ', 17 ", 17''' which are particularly useful for position detections.
  • These register marks 17, 17 ', 17", 17''' have spaced-apart elements 18. They represent, so to speak, a scale which defines positions as a path or, for example, as an angular interval and thus makes the position of the partial color images 7, 7 ', 7 ", 7'" relative to one another and to the printing substrate 15 detectable.
  • Fig. 6 shows a schematic diagram for a register mark detection.
  • the color printing units 6, 6 ', 6 ", 6''' - shown symbolically only one - each register mark 17, 17 ', 17", 17''' is printed. These are detected with respect to their position by a sensor 29 for detecting register marks 17, 17 ', 17 ", 17'''
  • a reference line 66 is defined in the register control, which is assigned to a substrate 15 on the carrier 4. Reaches these Reference line 66 with the substrate 15 a certain position in front of the register sensor 29, this is activated to measure the distances of the register marks 17, 17 ', 17 ", 17''' to this reference line 66.
  • the respective distance 65 of the reference line 66 to the detection point 23 for the front edge 24 of a printing substrate 15 and the determined distances of the register marks 17, 17 ', 17 ", 17'" to this reference line 66 can be detected, for example, as paths.
  • the data are transferred in the manner shown above to devices 40, 40 ', ..., 41, 41'. , ... for determining corrections for imaging 11, 11 ', ....
  • Fig. 7 shows an example of a time-independent position assignment.
  • the angular positions 68 of the image cylinders and the image transfer cylinders are plotted against the positions 69 of the substrate 4 for printing substrates.
  • the angular position 70 of an image cylinder 2 was and the angular position 71 of an image transfer cylinder 13 is drawn.
  • the angular positions of the further image cylinder 2 ', etc. would have to be plotted by means of curves which are shifted with respect to the curves 70 and 71. This was omitted for clarity.
  • the illustration shows that an angular position of an image cylinder 2 and an angular position of an image transfer cylinder 13 are associated with each position 69 of the substrate 4 for printing substrates 15.
  • a time-independent position assignment is made in this way in order to start certain processes in the correct positions.
  • the first preparation for printing is initiated at the position 72, which is the position of detecting a printing substrate 15 by a sensor 44 which registers the feeding of the printing substrate 15 to the multi-color printing machine 1. From this point in time, the calculation of the image generation 11, 11 ',... Of the partial color images 7, 7',... Takes place, the relative assignments being calculated.
  • the printing substrate 15 is detected by the sensor 23 and thus determines its exact position on the support 4, whereby an exact assignment of the image forms 11, 11 ', ... of the partial color images 7, 7', ... to the carrier 4 is possible. Between position 72 and position 73, the printing substrate travels the path 21.
  • the travel or angular position of the drive roller 52 is calculated to determine the position 25. This is the position of the carrier 4 at which the beginning of image formation 11 of a partial color image 7 on the image cylinder 2 begins. After a path 14 of the carrier 4 takes place in the position 74, the beginning of the transfer of the partial color image 7 from the image cylinder 2 on the image transfer cylinder 13. After a further path 12 of the carrier 4, this reaches the position 75 for the beginning of the transfer of the partial color image 7 of the image transfer cylinder 13 on a substrate 15. In this case, the paths 14 and 12 of the carrier 4 angular positions 8 of the image cylinder and angular positions 9 of the image transfer cylinder 13 are assigned.
  • the position assignments according to the invention do not mean that the path lengths on the cylinders 2, 2 ', ..., 13, 13', ... and the carrier 4 are the same, since in the transmissions of the partial color images 7, 7 ',. .., for example, from an image cylinder 2, 2 ', ..., on an image transfer cylinder 13, 13', ... comes to an overdrive.
  • there is a slip which also leads to the fact that no exact path length assignment is possible.
  • the illustrated embodiment is merely illustrative of the invention and at the same time constitutes an advantageous embodiment.
  • the method described in the introduction and the device of the invention can, of course, be based on a variety of applications Be realized in a machine. Not only alternatives to the position detection that have been mentioned are possible, but also the concrete acquisition and processing of the data can of course be done in different ways.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Electrophotography (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Color, Gradation (AREA)
  • Electronic Switches (AREA)

Claims (96)

  1. Procédé de réglage du registre sur une imprimante multicolore (1) comprenant plusieurs groupes d'impression en couleur (6, 6', 6", 6"') associés à différentes couleurs d'impression avec des cylindres porte-cliché (2, 2', ...), des dispositifs (3, 3', ...) de génération d'images, notamment d'images latentes électrostatiques sur les cylindres porte-cliché (2, 2', ...), un support (4) pour des substrats d'impression (15) et des points de transfert d'images (5, 5', 5", 5"') pour le transfert des images partielles en couleur (7, 7', ...) des groupes d'impression en couleur (6, 6', 6", 6"') aux substrats d'impression (15), une association entre les positions des points de génération d'images (11, 11', ...) sur les cylindres porte-cliché (2, 2', ...) et les substrats d'impression (15) étant effectuée pour obtenir une concordance du repérage des images partielles en couleur (7, 7', ...) lors de l'impression, caractérisé en ce que
    o les positions des éléments (2, 2', ..., 4, 13, 13', ...) portant les images et les substrats sont enregistrées et en ce que
    o les positions enregistrées des éléments portant les substrats sont utilisées pour une association de position indépendante du temps pour au moins une plage (10, 10', 10", ..., 10n) définie de toutes les images partielles en couleur (7, 7', ...).
  2. Procédé selon la revendication 1, caractérisé en ce que l'on génère respectivement au moins une plage (10, 10', 10", ..., 10n) définie sur les cylindres porte-cliché (2, 2', ...) par rapport aux positions (25, 25', ...) préalablement définies du support (4) pour obtenir les images partielles en couleur (7, 7', ...).
  3. Procédé selon la revendication 1, caractérisé en ce que l'on associe à au moins une plage (10, 10', 10", ..., 10n) définie de l'image partielle en couleur (7) d'un groupe d'impression en couleur de référence (6), au moins une plage (10, 10', 10", ..., 10n) définie des images partielles en couleur (7', ...) des autres groupes d'impression en couleur (6', 6", 6"') et en ce qu'il y a ensuite une association avec une position (25, 25', ...) du support (4).
  4. Procédé selon l'une quelconque des revendications 1 à 3, selon lequel l'on réalise une association de position du support (4) et selon lequel les positions angulaires d'un rouleau d'entraînement (52) du support (4) sont utilisées pour les associations de position (25, 25', ...).
  5. Procédé selon l'une quelconque des revendications 1 à 4, selon lequel l'on réalise une association de position des cylindres porte-cliché (2, 2', ...) et selon lequel l'on utilise leurs positions angulaires (8, 8', ...) pour l'association de position des cylindres porte-cliché (2, 2', ...).
  6. Procédé selon l'une quelconque des revendications 1 à 3 ou 4, selon lequel on effectue une association de position du support et selon lequel l'on utilise des distances (12, 12', ..., 14, 14', ..., 22, 22', ...) parcourues à la surface du support (4) pour les associations de position (25, 25', ...) du support (4).
  7. Procédé selon l'une quelconque des revendications 1 à 4 ou 6, selon lequel l'on réalise une association de position des cylindres porte-cliché (2, 2', ...) et selon lequel l'on utilise des distances (8, 8', ...) à la surface des cylindres porte-cliché (2, 2', ...) pour les associations de position des cylindres porte-cliché (2, 2', ...).
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'on utilise également les positions (9, 9', ...) des cylindres de transfert d'images (13, 13', ...) dans les associations de position.
  9. Procédé selon la revendication 8, caractérisé en ce que l'on utilise, pour les associations de position des cylindres de transfert d'images (13, 13', ...), leurs positions angulaires (9, 9', ...).
  10. Procédé selon la revendication 8, caractérisé en ce que l'on utilise des distances (9, 9', ...) sur les surfaces des cylindres de transfert d'images (13, 13', ...) pour les associations de position des cylindres de transfert d'images (13, 13', ...).
  11. Procédé selon l'une quelconque des revendications 1 à 10, caractérisé en ce que les plages des images partielles en couleur (7, 7', ...) définies et associées entre elles sont les débuts d'image (10).
  12. Procédé selon l'une quelconque des revendications 1 à 11, caractérisé en ce que les plages (10', 10", ..., 10n) définies et associées entre elles sont les plages (10', 10", ..., 10n) des images partielles en couleur (7, 7', ...) sur lesquelles les surfaces d'image sont réparties.
  13. Procédé selon l'une quelconque des revendications 1 à 12, caractérisé en ce que les plages (10, 10', 10", ..., 10n) sont des lignes de points d'images des images partielles en couleur (7, 7', ...).
  14. Procédé selon l'une quelconque des revendications 1 à 12, caractérisé en ce que les plages (10', 10", ..., 10n) sont respectivement un nombre de lignes de points d'images des images partielles en couleur (7, 7', ...).
  15. Procédé selon la revendication 14, caractérisé en ce que le nombre des lignes de points d'images résulte de l'association avec les intervalles angulaires définis des cylindres porte-cliché (2, 2', ...).
  16. Procédé selon l'une quelconque des revendications 1 à 15, caractérisé en ce que l'on détermine et règle également la position latérale des plages (10, 10', 10", ..., 10n).
  17. Procédé selon l'une quelconque des revendications 1 à 16, caractérisé en ce que l'on détermine et corrige également des erreurs concernant l'extension latérale des plages (10, 10', 10", ..., 10n).
  18. Procédé selon l'une quelconque des revendications 1 à 17, caractérisé en ce que l'on détermine et harmonise les positions (8, 8', ..., 9, 9, ..., 12, 12', ..., 14, 14', ..., 25, 25', ...) avant le traitement d'un ordre d'impression.
  19. Procédé selon l'une quelconque des revendications 1 à 18, caractérisé en ce que les positions (8, 8', ..., 9, 9', ..., 12, 12', ..., 14, 14', ..., 22, 22' ..., 25, 25', ... ) sont enregistrées et harmonisées entre elles en permanence pendant le traitement d'un ordre d'impression.
  20. Procédé selon l'une quelconque des revendications 1 à 19, caractérisé en ce que l'on détermine les positions (8, 8', ...,9,9', ..., 12, 12', ..., 14, 14', ..., 22, 22', ..., 25, 25', ...) par des traits de repérage (17, 17').
  21. Procédé selon la revendication 20, caractérisé en ce que les traits de repérage (17, 17', 17", 17"') comprennent des éléments (18) disposés dans le sens du transport (14) à des distances préalablement définies entre eux.
  22. Procédé selon la revendication 21, caractérisé en ce que les écarts (19) réguliers entre les éléments (18) sont enregistrés.
  23. Procédé selon l'une quelconque des revendications 20 à 22, caractérisé en ce que les traits de repérage (17, 17', 17", 17"') sont imprimés sur le support (4) et éliminés par la suite après définition de la position.
  24. Procédé selon la revendication 23, caractérisé en ce que les traits de repérage (17, 17', 17", 17"') sont imprimés dans la zone du support (4) non recouverte par les substrats d'impression (15).
  25. Procédé selon la revendication 24, caractérisé en ce que les traits de repérage (17, 17', 17", 17"') sont imprimés sur du papier.
  26. Procédé selon l'une quelconque des revendications 1 à 25, caractérisé en ce que l'on sépare, par une analyse des positions (8, 8', ..., 9, 9', ..., 12, 12', ..., 14, 14', ..., 22, 22', ..., 25, 25', ...) déterminées, les écarts entre les valeurs réelles et les valeurs nominales pour les débuts d'image (10) des écarts des valeurs réelles pour les autres plages (10', 10", ..., 10n) sur lesquelles les surfaces d'images sont réparties.
  27. Procédé selon l'une quelconque des revendications 1 à 26, caractérisé en ce que l'on détermine, après définition des positions (8, 8', ...,9,9', ..., 12, 12', ..., 14, 14', ..., 25, 25', ...) pour les débuts d'image (10) sur les différents cylindres porte-cliché (2, 2', ...), ces positions pour la génération d'images des autres plages (10, 10', ..., 10n) définies sur les différents cylindres porte-cliché (2, 2', ...) en renouant aux premières et en ce qu'on les utilise, dans cet ordre, pour la gestion et/ou régulation des points de génération d'images (11, 11', ...).
  28. Procédé selon l'une quelconque des revendications 1 à 27, caractérisé en ce que les variations très ponctuelles entre les valeurs enregistrées sont éliminées pour éviter une instabilité de régulation pour l'évaluation.
  29. Procédé selon l'une quelconque des revendications 1 à 28, caractérisé en ce que l'on sépare les variations des valeurs de position déterminées qui peuvent être associées par rapport à leur ordre de grandeur et leur répétition pour une position reproductible d'un cylindre (2, 2', ..., 13, 13', ...) par rapport aux variations plus longues.
  30. Procédé selon la revendication 29, caractérisé en ce que les variations des valeurs de position (8, 8', ..., 9,9', ..., 12, 12', ..., 14, 14', ..., 25, 25', ...) déterminées, qui peuvent être associées par rapport à leur ordre de grandeur et à la reproduction d'une position reproductible d'un cylindre porte-cliché (2, 2', ...), sont intégrées dans au moins un tableau d'étalonnage pour ce cylindre porte-cliché (2, 2', ...) et utilisées pour la gestion des positions des points de génération d'images (11, 11', ...) pour compenser les erreurs.
  31. Procédé selon la revendication 30, caractérisé en ce que l'on établit des tableaux d'étalonnage pour les débuts d'image (10) des images partielles en couleur (7, 7', ...).
  32. Procédé selon la revendication 30 ou 31, caractérisé en ce que l'on établit des tableaux d'étalonnage pour les autres plages (10', 10", ... , 10n) définies des images partielles en couleur (7, 7', ...).
  33. Procédé selon l'une quelconque des revendications 29 à 32, caractérisé en ce que l'on enregistre également, pour au moins un élément (13,13', ..., 4, 20, 52, 52') supplémentaire de transfert d'images ou de substrats, des écarts des positions (8, 8', ..., 9, 9', ..., 12, 12', ..., 14, 14', ..., 25, 25', ...) associables à ses positions reproductibles dans un cycle de mouvements par rapport aux valeurs nominales et en ce qu'on les intègre dans le calcul des positions des points de génération d'images (11, 11', ...).
  34. Procédé selon la revendication 33, caractérisé en ce que l'on établit également pour au moins un élément (13, 13', ..., 4, 20, 52, 52') au moins un tableau d'étalonnage et en ce que l'on intègre tous les tableaux d'étalonnage dans le calcul des positions des points de génération d'images (11, 11', ...).
  35. Procédé selon l'une quelconque des revendications 30 à 34, caractérisé en ce que l'on tient compte des variations plus longues des valeurs de position déterminées par le renouvellement des tableaux d'étalonnage.
  36. Procédé selon l'une quelconque des revendications 1 à 35, caractérisé en ce que l'on tient compte d'erreurs des valeurs de position déterminées produites pendant une durée prolongée et ne pouvant être associées, par leur répétition, à une position reproductible d'un élément (2, 2', ..., 13, 13',..., 4, 20, 52, 52') transférant des images ou des substrats, par l'intégration de leurs grandeurs d'influence causales dans la correction pour la gestion de repérage.
  37. Procédé selon la revendication 36, caractérisé en ce que l'intégration des grandeurs d'influence dans la correction se fait sur la base des valeurs empiriques enregistrées.
  38. Procédé selon la revendication 37, caractérisé en ce que l'intégration des grandeurs d'influence est activée par une saisie manuelle.
  39. Procédé selon la revendication 37, caractérisé en ce que l'intégration des grandeurs d'influence est activée par une mesure de ces dernières.
  40. Procédé selon l'une quelconque des revendications 1 à 39, caractérisé en ce que l'on mesure des grandeurs d'influence d'erreurs des valeurs de position déterminées concernant leurs effets sur le repérage et en ce que l'on procède à une correction des points de génération d'images (11, 11', ...) en fonction de ces écarts.
  41. Procédé selon la revendication 39 ou 40, caractérisé en ce qu'un enregistrement de la température à des points choisis de l'imprimante (1) constitue une base pour une correction.
  42. Procédé selon l'une quelconque des revendications 39 à 41, caractérisé en ce que l'enregistrement de contraintes sur des composants choisis de l'imprimante (1) constitue une base pour une correction.
  43. Procédé selon l'une quelconque des revendications 37 à 42, caractérisé en ce que des valeurs empiriques concernant différents types de papier sont disponibles pour une correction en cas de changement de type de papier.
  44. Procédé selon l'une quelconque des revendications 37 à 43, caractérisé en ce que des valeurs empiriques concernant les différents profils de toner sont disponibles pour une correction.
  45. Procédé selon l'une quelconque des revendications 37 à 44, caractérisé en ce que l'on enregistre un décalage d'un substrat (15) sur le support (4) et en ce que l'on corrige les positions des points de génération d'images (11, 11', ...) pour compenser ce décalage.
  46. Procédé selon l'une quelconque des revendications 37 à 45, caractérisé en ce que des valeurs empiriques concernant les différentes largeurs d'images sont disponibles pour une correction.
  47. Procédé selon l'une quelconque des revendications 37 à 46, caractérisé en ce que des valeurs empiriques concernant différentes largeurs de papier sont disponibles pour la correction.
  48. Procédé selon l'une quelconque des revendications 37 à 47 caractérisé en ce que des valeurs empiriques concernant les modifications des mesures des dimensions des substrats sont prises en compte, après l'impression des deux faces d'un substrat (15), pour s'assurer que la taille de l'image au verso correspond à la taille de l'image au recto.
  49. Procédé selon l'une quelconque des revendications 37 à 48, caractérisé en ce que l'effet rétroactif de l'état précédant une modification est pris en compte pour les valeurs empiriques.
  50. Procédé selon l'une quelconque des revendications 1 à 49, caractérisé en ce que des variations des valeurs de position, qui ne peuvent être associées à la position angulaire d'un cylindre porte-cliché (2, 2', ...) concernant leur répétition mais qui se produisent de manière récurrente à des intervalles réguliers, sont intégrées dans des tableaux d'étalonnage séparés et utilisées pour la commande des dispositifs (3,3', ...) de génération d'images sur les cylindres porte-cliché (2, 2`, ...) correspondants pour compenser les erreurs.
  51. Procédé selon la revendication 50, caractérisé en ce que des variations des valeurs de position, qui peuvent être associées concernant leur répétition à une position du support (4) des substrats d'impression (15), sont corrigées en fonction des positions du support (4), cette correction étant rajoutée aux corrections des valeurs de position associées à la position des cylindres porte-cliché (2, 2', ...).
  52. Procédé selon l'une quelconque des revendications 50 ou 51, caractérisé en ce que les variations des valeurs de position sont évitées par l'élimination de leurs causes.
  53. Procédé selon la revendication 52, caractérisé en ce que la circonférence du rouleau d'entraînement (52) du support (4) est dimensionnée, par rapport à l'écart (64) des points de transfert d'images (5, 5', 5", 5"') des groupes d'impression en couleur (6, 6', 6", 6"') de sorte que l'association des positions angulaires du rouleau d'entraînement (52) par rapport aux cylindres porte-cliché (2, 2', ...) se répète.
  54. Procédé selon l'une quelconque des revendications 1 à 51, caractérisé en ce que la correction est réglée à une plage moyenne dans une largeur de plage tolérable des valeurs de position enregistrées.
  55. Procédé selon la revendication 54, caractérisé en ce qu'une valeur moyenne est réglée si les valeurs de position transversales à la direction de transport (33) sont variables.
  56. Procédé selon la revendication 54 ou 55, caractérisé en ce que les écarts mesurés sont pondérés pour calculer la plage moyenne.
  57. Procédé selon la revendication 56, caractérisé en ce qu'il en résulte une pondération quadratique.
  58. Procédé selon l'une quelconque des revendications 54 à 57, caractérisé en ce que les valeurs situées dans la plage moyenne des groupes d'impression en couleur (6', 6", 6"') sont mises en concordance avec la valeur située dans la plage moyenne d'un groupe d'impression de référence (6).
  59. Procédé selon l'une quelconque des revendications 1 à 58, caractérisé en ce que l'arrivée d'un substrat d'impression (15) est enregistrée et en ce que les positions (25, 25') pour le début respectif de l'application d'images sur les cylindres porte-cliché (2, 2', ...) sont déterminées comme positions (22, 22', ...) du support (4) à partir du point d'enregistrement (23) pour substrats d'impression (15).
  60. Dispositif de réglage du registre conformément à un procédé selon des revendications 1 à 59 sur une imprimante multicolore (1) comprenant des groupes d'impression en couleur (6, 6', 6", 6"') associés à différentes couleurs d'impression équipés de cylindres porte-cliché (2, 2', ...), de dispositifs (3, 3', ...) de génération d'images, notamment d'images latentes électrostatiques sur les cylindres porte-cliché (2, 2', ...), un support (4) des substrats d'impression (15) et des points de transfert d'images (5, 5', 5", 5"') pour transférer des images partielles en couleur (7, 7', ...) des groupes d'impression en couleur (6, 6', 6", 6"') aux substrats d'impression (15), des capteurs (23, 26, 26', ..., 27, 28, 28', ..., 29) de détection de position, ainsi qu'au moins un dispositif de réglage (30, 30', ..., 31, 31', ...) pour assurer l'association des positions des points de génération d'images (11, 11', ...) sur les cylindres porte-cliché (2, 2', ...) aux substrats d'impression (15) pour obtenir une concordance de registre des images partielles en couleur (7, 7', ...) lors de l'impression,
    caractérisé en ce que les capteurs (23, 26, 26', ..., 27, 28, 28', ..., 29) sont conçus pour détecter les positions des éléments (2, 2', ..., 4, 13, 13', ...) de transfert d'images et de substrats et en ce qu'au moins un dispositif de réglage (30, 30', ..., 31, 31', ...) est conçu de sorte qu'il associe, indépendamment du temps, les positions des points de génération d'images (11, 11', ...) sur les cylindres porte-cliché (2, 2', ...) aux substrats d'impression (15) concernant au moins une plage (10, 10', 10", ..., 10n) définie des images partielles en couleur (7, 7', ...).
  61. Dispositif selon la revendication 60, caractérisé en ce qu'au moins un dispositif de réglage (30, 30', ..., 31, 31', ...) est conçu de sorte qu'il provoque la génération (11, 11', ...) d'au moins une plage (10, 10', 10", ..., 10n) définie de toutes les images partielles en couleur (7, 7', ...) sur les cylindres porte-cliché (2, 2', ...) respectifs par rapport à des positions (25, 25', ...) préalablement définies du support (4).
  62. Dispositif selon la revendication 60 ou 61, caractérisé en ce qu'au moins un capteur (26, 26', ..., 27, 28, 28', ...) est réalisé comme capteur de position angulaire.
  63. Dispositif selon la revendication 60, 61 ou 62, caractérisé en ce qu'au moins un dispositif de réglage (30, 30', ..., 31, 31', ...) est conçu pour l'association des positions angulaires.
  64. Dispositif selon la revendication 63, caractérisé en ce qu'au moins un capteur de détection de défauts de concentricité est prévu et en ce qu'au moins un dispositif de réglage (30, 30', ..., 31, 31', ...) détermine les positions (8, 8', ..., 9, 9', ..., 12, 12', ..., 14, 14', ..., 22, 22', ...) à partir des positions angulaires et des défauts de concentricité.
  65. Dispositif selon l'une quelconque des revendications 60 à 64, caractérisé en ce qu'au moins un capteur (26, 26', ..., 27, 32) est conçu pour détecter des distances (8, 8', ..., 9, 9', ..., 12, 12', ..., 14, 14', ..., 22, 22', ...).
  66. Dispositif selon la revendication 65, caractérisé en ce que des capteurs (26, 26', ..., 27, 28, 28', ..., 32) sont installés pour détecter des repères de distance et que ces derniers sont disposés sur les surfaces correspondantes.
  67. Dispositif selon l'une quelconque des revendications 60 à 66, caractérisé en ce qu'au moins un dispositif de réglage (30, 30', ..., 31, 31', ...) est conçu pour l'association des distances (8, 8', ..., 9, 9', ..., 12, 12', ..., 14, 14', ..., 22, 22', ...).
  68. Dispositif selon l'une quelconque des revendications 60 à 67, caractérisé en ce qu'au moins un capteur (28, 28', ...) de détection des positions des cylindres de transfert d'images (13, 13', ...) est prévu et en ce que ces positions sont transmises à au moins un dispositif de réglage (30, 30', ..., 31, 31', ...) pour le calcul des points de génération d'images (11, 11',...).
  69. Dispositif selon l'une quelconque des revendications 60 à 68, caractérisé en ce qu'au moins un dispositif de réglage (30, 30', ...) est conçu de sorte qu'il spécifie les positions (25, 25', ...) du support (4) auxquelles s'applique le début (10) de l'application des images sur les cylindres porte-cliché (2, 2', ...).
  70. Dispositif selon l'une quelconque des revendications 60 à 69, caractérisé en ce qu'au moins un dispositif de réglage (31,31', ...) est conçu de sorte qu'il spécifie les positions (25, 25', ...) du support (4) auxquelles s'applique l'application des images sur les cylindres porte-cliché (2,2') avec des plages (10', 10", ..., 10n) sur lesquelles la surface d'image est répartie.
  71. Dispositif selon l'une quelconque des revendications 60 à 70, caractérisé en ce qu'au moins un capteur (29) est prévu pour détecter des traits de repérage (17, 17', 17", 17"').
  72. Dispositif selon la revendication 71, caractérisé en ce qu'au moins un capteur (29) est conçu pour détecter les écarts (19) préalablement définis entre les éléments (18) espacés des traits de repérage (17, 17', 17", 17''').
  73. Dispositif selon l'une quelconque des revendications 60 à 72, caractérisé en ce que les dispositifs de réglage (30, 30', ..., 31, 31', ...) sont équipés de valeurs nominales (34, 34', ..., 35, 35', ...) spécifiques de l'imprimante pour les positions (8, 8', ..., 9, 9', ...,12, 12', ...,14, 14', ..., 22, 22', ...,25, 25', ...).
  74. Dispositif selon l'une quelconque des revendications 60 à 73, caractérisé en ce que les dispositifs de réglage (30, 30', ..., 31, 31', ...) sont conçus de sorte qu'ils tiennent compte, avant le début de l'impression, des valeurs de correction (36, 36', ...) pour les positions (8, 8', ...) des points de génération d'images (11, 11', ...) sur les cylindres porte-cliché (2, 2',...).
  75. Dispositif selon l'une quelconque des revendications 60 à 74, caractérisé en ce que les dispositifs de réglage (30, 30', ..., 31, 31', ...) sont conçus de sorte qu'ils tiennent compte, avant le début de l'impression, des valeurs de correction (37, 37', ...) pour les positions (9, 9', ...) sur les cylindres de transfert d'images (13, 13', ...).
  76. Dispositif selon l'une quelconque des revendications 60 à 75, caractérisé en ce que les dispositifs de réglage (30, 30', ..., 31, 31', ...) sont conçus de sorte qu'ils tiennent compte, après le début de l'impression, des valeurs de correction (3 6, 36', ..., 37, 37', ..., 38, 38', ...) pour les positions (8, 8', ..., 9, 9', ..., 12, 12', ..., 14, 14', ..., 22, 22', ..., 25, 25', ...).
  77. Dispositif selon l'une quelconque des revendications 60 à 76, caractérisé en ce que les dispositifs de réglage (30, 30', ..., 31, 31', ...) sont réalisés de sorte qu'ils tiennent compte, avant le début de l'impression, des valeurs de correction (38, 38', ...) pour la définition des positions (8, 8', ...,9,9', ..., 12, 12', ..., 14, 14', ..., 22, 22', ..., 25, 25', ...) qui peuvent être associées à des grandeurs d'influence enregistrables et qui sont disponibles sous la forme d'au moins un fichier (39, 39', ...) sélectionnable contenant des valeurs empiriques.
  78. Dispositif selon la revendication 77, caractérisé en ce que la sélection d'au moins un fichier (39, 39', ...) s'effectue par un dispositif d'entrée.
  79. Dispositif selon la revendication 77, caractérisé en ce que la sélection d'au moins un fichier (39, 39', ...) s'effectue par au moins un dispositif de réglage (30, 30', ..., 31, 31', ...) sur la base d'au moins une mesure d'une grandeur d'influence au moins.
  80. Dispositif selon l'une quelconque des revendications 60 à 79, caractérisé en ce que les capteurs (23, 26, 26', ..., 27, 28, 28', ..., 29, 32) et les dispositifs de réglage (30, 30', ..., 31, 31', ...) sont conçus de sorte que les effets des grandeurs d'influence sur le registre soient mesurés et que la mise en image soit corrigée en fonction de ces écarts.
  81. Dispositif selon l'une quelconque des revendications 77 à 80, caractérisé en ce que la grandeur d'influence est au moins une température dans l'imprimante (1).
  82. Dispositif selon la revendication 81, caractérisé en ce qu'au moins un capteur de température est disposé dans l'imprimante (1).
  83. Dispositif selon l'une quelconque des revendications 77 à 82, caractérisé en ce que la grandeur d'influence est au moins une contrainte mécanique dans l'imprimante (1).
  84. Dispositif selon la revendication 83, caractérisé en ce qu'au moins un capteur de tension est disposé dans l'imprimante (1).
  85. Dispositif selon l'une quelconque des revendications 77 à 84, caractérisé en ce que la grandeur d'influence est le type de papier.
  86. Dispositif selon l'une quelconque des revendications 77 à 85, caractérisé en ce que la grandeur d'influence est le profil de toner.
  87. Dispositif selon la revendication 86, caractérisé en ce qu'il est équipé d'un dispositif de mesure d'un profil de toner.
  88. Dispositif selon l'une quelconque des revendications 77 à 87, caractérisé en ce qu'un capteur de détection de décalage d'un substrat (15) sur le support (4) est prévu et en ce que les dispositifs de réglage (30, 30', ..., 31, 31', ...) sont conçus de sorte que les positions des points de génération d'images (11, 11', ...) sont corrigées pour compenser ce décalage.
  89. Dispositif selon l'une quelconque des revendications 60 à 88, caractérisé en ce que la circonférence du rouleau d'entraînement (52) du support (4) est intégrée en nombres entiers dans l'écart (64) des points de transfert d'images (5, 5', 5", 5"') des groupes d'impression en couleur (6, 6', 6", 6"').
  90. Dispositif selon l'une quelconque des revendications 60 à 89, caractérisé en ce qu'au moins un dispositif (40, 40', ..., 41, 41', ...) détermine, sur la base de l'enregistrement des positions (8, 8', ..., 9, 9', ..., 12, 12', ..., 14, 14', ..., 22, 22', ..., 25, 25', ...) pendant l'impression, les corrections (42, 42', ..., 43, 43', ...) requises des positions (8, 8', ..., 9, 9', ..., 12, 12', ..., 14, 14', ..., 22, 22', ..., 25, 25', ...) et les transmet pour exécution aux dispositifs de réglage (30, 30', ..., 31, 31', ...).
  91. Dispositif selon la revendication 90, caractérisé en ce qu'au moins un dispositif (40, 40', ...) de détection des corrections (42, 42', ...) pour les débuts d'image (10) est relié au capteur (27) de détection des positions (12, 12', ..., 14, 14', ...,22,22', ..., 25, 25'..., ) du support (4) et au capteur (29) de détection des traits de repérage (17, 17', 17", 17"').
  92. Dispositif selon la revendication 90 ou 91, caractérisé en ce qu'au moins un dispositif (41, 41', ...) de détection des corrections (43, 43', ...) pour les plages (10', 10", ..., 10n) des images partielles en couleur (7, 7', ...), dans lesquelles sont réparties les surfaces d'images, est relié au capteur (27 et/ou 32) de détection des positions (12, 12', ..., 14, 14', ...) du support (4) et au capteur (29) de détection des traits de repérage (17, 17', 17", 17"').
  93. Dispositif selon la revendication 92, caractérisé en ce que des dispositifs (46, 46', ...) d'émissions des signaux de départ (48, 48', ...) pour les débuts d'image (10) émettent simultanément des signaux de départ à des dispositifs (47, 47', ...) d'association des plages (10', 10", ..., 10n) sur lesquelles la surface d'image est répartie, ces dispositifs (47, 47', ...) étant reliés à des capteurs (26, 26', ...) de détection des positions des cylindres porte-cliché (2, 2', ...) tout en associant à ces positions les plages (10', 10", ..., 10n) sur lesquelles la surface d'image est répartie.
  94. Dispositif selon l'une quelconque des revendications 60 à 93, caractérisé en ce qu'un capteur (44) de détection d'un substrat d'impression (15) amené dans l'imprimante (1) est disposé sur la distance parcourue par les substrats d'impression (15) vers l'imprimante (1) et relié aux dispositifs de réglage (30, 30', ..., 31, 31', ...), le calcul de l'association des positions des points de génération d'images (11, 11', ...) au substrat d'impression (15) étant lancé au moment où le capteur détecte un substrat d'impression (15).
  95. Dispositif selon la revendication 93, caractérisé en ce qu'un capteur (23) de détection précise des bords avant (24) des substrats d'impression (15) est disposé sur le support (4) et relié à l'un des dispositifs (46, 46', ...), ce dispositif calculant les distances ou positions angulaires (22, 22', ...) que le substrat d'impression parcourt entre le capteur (23) et les positions (25, 25', ...) du début de l'application d'images et en ce qu'il provoque le début de cette dernière à ces positions.
  96. Imprimante multicolore (1) comprenant un dispositif selon les revendications 60 à 95 de réglage du registre selon un procédé selon les revendications 1 à 59.
EP01111089A 2000-05-17 2001-05-09 Méthode et dispositif d'ajustement de la régistration dans une imprimante couleur et imprimante couleur Expired - Lifetime EP1156384B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20468200P 2000-05-17 2000-05-17
US204682P 2000-05-17

Publications (3)

Publication Number Publication Date
EP1156384A2 EP1156384A2 (fr) 2001-11-21
EP1156384A3 EP1156384A3 (fr) 2005-03-23
EP1156384B1 true EP1156384B1 (fr) 2008-04-16

Family

ID=22758983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01111089A Expired - Lifetime EP1156384B1 (fr) 2000-05-17 2001-05-09 Méthode et dispositif d'ajustement de la régistration dans une imprimante couleur et imprimante couleur

Country Status (5)

Country Link
US (1) US6493012B2 (fr)
EP (1) EP1156384B1 (fr)
JP (1) JP4588919B2 (fr)
AT (1) ATE392646T1 (fr)
DE (1) DE50113847D1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1157837B1 (fr) * 2000-05-17 2009-06-24 Eastman Kodak Company Procédé pour la mise en repérage dans une presse multicolor
DE10208597B4 (de) * 2002-02-27 2013-03-21 Eastman Kodak Co. Verfahren zum Vermeiden von Registerfehlern bei einer Druckmaschine
DE10231801B3 (de) * 2002-07-15 2004-03-04 Nexpress Solutions Llc Verfahren und Vorrichtung zur Steuerung der Lagegenauigkeit beim Farbdruck
DE10304763A1 (de) * 2003-02-05 2004-08-26 Nexpress Solutions Llc Verfahren zur Korrektur der Kalibrierung eines passergenauen Druckprozesses
US6999108B2 (en) * 2004-02-17 2006-02-14 Eastman Kodak Company Method and apparatus for image registration improvements in a printer having plural printing stations
JP4496020B2 (ja) * 2004-06-29 2010-07-07 株式会社リコー 画像形成装置
US7593656B2 (en) * 2004-10-20 2009-09-22 Eastman Kodak Company Method and device for controlling registration
DE102005027352A1 (de) 2004-10-20 2006-04-27 Eastman Kodak Co. Verfahren und Vorrichtung zur Regelung des Umfangspassers
US9145014B1 (en) 2014-05-19 2015-09-29 Eastman Kodak Company Drive gears providing improved registration in digital printing systems
US9227434B2 (en) 2014-05-19 2016-01-05 Eastman Kodak Company Precision registration in a digital printing system
US9316989B1 (en) 2015-01-27 2016-04-19 Eastman Kodak Company Electrophotographic printers having spatial self-compensation for image cylinder runout
US11829084B2 (en) 2021-09-28 2023-11-28 Eastman Kodak Company Registration of white toner in an electrophotographic printer
US11822262B2 (en) 2021-09-28 2023-11-21 Eastman Kodak Company Registration of white toner using sensing system with colored reflector plate

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT351488B (de) * 1972-09-08 1979-07-25 Zimmer Peter Ag Anordnung an einer rotationsschablonendruck- maschine zum bedrucken einer kontinuierlich bewegten, abschnittsweise unterschiedlich struktuierten warenbahn
FR2578486B1 (fr) * 1985-03-08 1987-06-12 Bertin & Cie Procede et dispositif de positionnement d'objets les uns par rapport aux autres, en particulier des rouleaux d'impression de couleurs dans une presse rotative offset
FI861578A0 (fi) * 1986-04-14 1986-04-14 Valtion Teknillinen Foerfarande foer kvalitetskontroll av tryckning.
GB2226929B (en) * 1986-04-15 1991-01-09 Canon Kk Multiple image forming apparatus
JP2769349B2 (ja) * 1989-03-23 1998-06-25 株式会社リコー 画像形成装置
US5287162A (en) * 1992-06-16 1994-02-15 Xerox Corporation Method and apparatus for correction of color registration errors
JP3538446B2 (ja) * 1993-03-15 2004-06-14 株式会社東芝 画像形成装置
JP3275434B2 (ja) * 1993-03-29 2002-04-15 富士ゼロックス株式会社 カラーレジストレーション誤差補正装置
EP0770480B1 (fr) * 1995-10-25 2001-12-19 Heidelberger Druckmaschinen Aktiengesellschaft Presse à imprimer digitale avec contrôle de registre
JPH09236963A (ja) * 1996-02-28 1997-09-09 Ricoh Co Ltd 画像形成装置
JP3530997B2 (ja) * 1997-11-06 2004-05-24 ミノルタ株式会社 画像形成装置
JP3932715B2 (ja) * 1999-03-02 2007-06-20 松下電器産業株式会社 カラー画像形成装置

Also Published As

Publication number Publication date
DE50113847D1 (de) 2008-05-29
JP2002049203A (ja) 2002-02-15
US20020001491A1 (en) 2002-01-03
ATE392646T1 (de) 2008-05-15
EP1156384A3 (fr) 2005-03-23
EP1156384A2 (fr) 2001-11-21
JP4588919B2 (ja) 2010-12-01
US6493012B2 (en) 2002-12-10

Similar Documents

Publication Publication Date Title
EP1156384B1 (fr) Méthode et dispositif d'ajustement de la régistration dans une imprimante couleur et imprimante couleur
DE102013224320A1 (de) Verbesserte Bildqualität durch Druckfrequenz Einstellung unter Verwendung der Messung der Geschwindigkeit der Bandfläche
EP1157837A2 (fr) Procédé et dispositif pour la mise en repérage dans une presse multicolor
DE4137979B4 (de) Antrieb für eine Druckmaschine mit mindestens zwei mechanisch voneinander entkoppelten Druckwerken
DE10111216A1 (de) Drucksystem und Druckverfahren
EP2392459A1 (fr) Procédé et dispositif de réglage du registre d'une presse d'impression
DE102006009773A1 (de) Verfahren zum Vermeiden eines Passerfehlers beim Drucken
EP3205500B1 (fr) Procédé de compensation de défauts de repérage et d'application spécifiques à la machine et erreur de repérage
DE10132266A1 (de) Verfahren und Vorrichtung zur Regelung des Übergabepassers in einer Bogenrotationsdruckmaschine
EP3539777B1 (fr) Procédé et dispositif de correction d'une position d'impression d'un groupe d'impression ainsi que imprimante
DE10139310B4 (de) Verfahren zum Ermitteln von START OF FRAME-Korrekturdaten und START OF LINE-Korrekturdaten zur Registereinstellung für Druckmaschinen beim Mehrfarbdruck
DE60007003T2 (de) Tandemdrucker und druckverfahren
DE60008820T2 (de) Bilderzeugungsverfahren und Bilderzeugungsgerät
EP0709184A1 (fr) Procédé pour signaler des différences de repère
EP1300243A2 (fr) Procédé et dispositif pour déterminer la position d'une bande imprimée
DE10208597B4 (de) Verfahren zum Vermeiden von Registerfehlern bei einer Druckmaschine
DE102005054975A1 (de) Registerregelung bei einer Druckmaschine
EP1155846B1 (fr) Procédé de repérage dans une machine d'impression polychrome
DE10142326B4 (de) Drucksystem aus meheren elektrofotografischen Druckgeräten, die nacheinander einen bandförmigen Aufzeichnungsträger bedrucken.
DE10227766A1 (de) Verfahren und Steuerungseinrichtung zum Vermeiden von Registerfehlern
DE102011000220B4 (de) Verfahren und Druckgerät zum Drucken zeilenweise gruppierter Bildinformation auf einen Aufzeichnungsträger
EP1156387B1 (fr) Méthode et dispositif d'ajustement de registration
EP2748003B1 (fr) Procédé permettant de déterminer chaque position d'au moins une surface d'impression sur une bande de matériau sur laquelle au moins une image doit être imprimée dans une machine d'impression
EP1156382B1 (fr) Méthode et appareil pour l'ajustement de registre dans une imprimante couleur
EP1156383B1 (fr) Méthode d'ajustement de registration dans une imprimante couleur

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

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

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HUNOLD, HEIKO

Inventor name: METZLER, PATRICK, DR.

Inventor name: MORDHORST, MICHAEL

Inventor name: PEFFER, ROBERT

Inventor name: LISTON, CHRISTOPHER

Inventor name: DREHER, INGO

Inventor name: BUCH, DONALD

Inventor name: THOMPSON, JOHN ROBERT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: EASTMAN KODAK COMPANY

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7B 41F 33/00 B

Ipc: 7G 03G 15/01 A

17P Request for examination filed

Effective date: 20050413

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20070523

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50113847

Country of ref document: DE

Date of ref document: 20080529

Kind code of ref document: P

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080727

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080416

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080916

BERE Be: lapsed

Owner name: EASTMAN KODAK CY

Effective date: 20080531

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: MC

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

Effective date: 20080531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080416

Ref country code: LI

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

Effective date: 20080531

Ref country code: CH

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

Effective date: 20080531

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080716

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080416

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

EN Fr: translation not filed
26N No opposition filed

Effective date: 20090119

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

Ref country code: BE

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

Effective date: 20080531

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080416

Ref country code: AT

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

Effective date: 20080509

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080416

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

Ref country code: LU

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

Effective date: 20080509

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080416

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080717

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090227

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

Ref country code: GB

Payment date: 20130425

Year of fee payment: 13

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140509

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 NON-PAYMENT OF DUE FEES

Effective date: 20140509

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

Ref country code: DE

Payment date: 20200417

Year of fee payment: 20

Ref country code: NL

Payment date: 20200421

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50113847

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20210508