Process and device for determining the position and/or the shape of marks on printed-on paper webs
First Claim
Patent Images
1. A process for determining the position and the shape of at least one registration mark on a web to be printed on, the process comprising:
- obtaining the image to be printed including obtaining prepress data of the image to be printed from digital or analog image data of a preliminary printing stage or a print original;
establishing predetermined criteria for arranging the registration mark;
adapting the criteria to the conditions of the image to be printed based on the prepress data;
determining the position and the shape of at least one registration mark in the image to be printed using the prepress data in which the position of the mark in the actual print image is arranged randomly in regions of the print image established based on the criteria adapted to the conditions of the image to be printed.
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Abstract
A process and device are provided for determining the position and/or the shape of at least one mark on a web to be printed on. The position and/or the shape of the at least one mark in the image to be printed is determined with the use of prepress data. The device for determining the position and/or the shape of at least one mark on a web to be printed on includes an input device for entering prepress data and a device for determining position data and/or shapes for a mark based on the prepress data entered.
15 Citations
21 Claims
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1. A process for determining the position and the shape of at least one registration mark on a web to be printed on, the process comprising:
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obtaining the image to be printed including obtaining prepress data of the image to be printed from digital or analog image data of a preliminary printing stage or a print original;
establishing predetermined criteria for arranging the registration mark;
adapting the criteria to the conditions of the image to be printed based on the prepress data;
determining the position and the shape of at least one registration mark in the image to be printed using the prepress data in which the position of the mark in the actual print image is arranged randomly in regions of the print image established based on the criteria adapted to the conditions of the image to be printed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for determining the position and/or the shape of at least one mark on a web to be printed on, the device comprising:
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an input device for entering prepress data of the image to be printed from digital or analog image data of a preliminary printing stage or a print original; and
a device for determining position data and shapes for a registration mark based on the prepress data entered, the device having predetermined criteria for arranging the registration mark adapted to the conditions of the image to be printed based on the prepress data and wherein the position of the mark in the actual print image is arranged randomly in regions of the print image established based on the criteria adapted to the conditions of the image to be printed. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A device for control of printing on a web, the device comprising:
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an input device for entering the prepress data of the image to be printed from digital or analog image data of a preliminary printing stage or a print original; and
a registration mark position and shape determination means for determining position and shape data for a registration mark based on the prepress data entered, the device having predetermined criteria for arranging the registration mark adapted to the conditions of the image to be printed based on the prepress data and wherein the position of the mark in the actual print image is arranged randomly in regions of the print image, said regions being established based on the criteria adapted to the conditions of the image to be printed;
a web printing station with a plurality of inking rollers and ink feed mechanisms;
a production planning computer providing one or more of web guiding data, plate coverage data and/or ink coverage data;
a final control element connected to said mark position and shape determination means, connected to said web printing station and connected to said production planning computer for controlling said web printing station based on said production planning computer and based on said position and shape data for a registration mark;
a sensor;
said sensor being positioned and/or actuated by said final control element on the basis of position and shape data. - View Dependent Claims (20, 21)
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Specification