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WO/1997/025211A1 |
A computerized system is provided for simulating the absorption of ink into a sheet. A sheet of paper is split into any number of portions, and the portion closest to the print surface is scanned into a computer to generate an intensity ...
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WO/1997/021548A1 |
In a device (1) which uses consumable material, an electronic device (24) is attached to the packaging (20) of the consumable which stores information about the consumable, and the quantity remaining in the packaging. The device is thus ...
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WO/1997/011848A1 |
The invention concerns a rotary printing press without shafting, the press comprising a number of individually driven printing positions (DS1, ..., DSn) and at least one separately driven folding machine (16, 18). The invention calls for...
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WO/1997/010955A1 |
The method is based on the detection of marks printed on the sheets of valuable documents or the like, marks which are situated in predetermined areas of the sheet, substantially at the corners, and which are printed in association with ...
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WO/1997/010041A1 |
The invention concerns a method of cleaning gases, in particular gases contaminated with chemical residues and particularly gases from print shops. The contaminated gas is extracted from the area where the contamination is produced and f...
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WO/1997/002952A2 |
A process for adjusting a web tension in a web-fed printing machine must address the problems of processing variables which are not precisely quantifiable and minimising the influence of an operator. This is achieved with the present inv...
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WO/1996/038304A1 |
A flexographic press with one or more inking units (12) on the circumference of a common counter-pressure cylinder (10), having a printing cylinder (14; 14') and an inking roller (16) and the printing cylinder of which can be operated in...
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WO/1996/036489A1 |
A phase adjustment unit (100) for effecting phase adjustment between rolls of a multi-color printing press comprises a phase adjustment gear device (10) and a phase adjustment motor (6) fitted to the rear end of the gear device (10). The...
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WO/1996/035939A1 |
The invention concerns an apparatus for producing a high-contrast image of powder particles (60) on the surface of a printed article (12), the apparatus having an illumination unit (16) which generates a light beam (52) which strikes the...
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WO/1996/030733A1 |
The invention concerns a process for checking colour print original copies for correctness and/or accuracy of colouring, alignment, printed image arrangement and the like in the high-speed on-line production of packaging, labelling and c...
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WO/1996/029204A1 |
A low-vibration folding device drive for a rotary press is produced in that each drivable rotating part or unit has a separate motor. Here, the motor concerned is positively secured to the corresponding rotating part, e.g. perforating ro...
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WO/1996/029537A1 |
In a cover for a drive of a folding machine which can be removed without the need for lifting gear, there is a plurality of soundproofing doors (37-42) fitted to hinge about their left or right-hand vertical pivots (43, 44). Each left or...
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WO/1996/026838A1 |
The method for centring images on fabric, clothes or other materials, which enables a precise positioning of the fabric, item of clothing or other item on a work surface, comprises: the reproduction of an image (3) on a transparent mediu...
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WO/1996/024046A1 |
A colour measuring device measures the light transmitted through the material to be measured as well as the light reflected therefrom and the irradiated light and measures the colour reflectivity in the various spectral ranges by dividin...
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WO/1996/022518A1 |
An optical sensing probe (32) for measuring the degree of powdering of powdered printed copy (10) has a measurement light barrier (70-74) that works by reflection and whose axis is inclined to the surface of the print product (10). In ad...
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WO/1996/019352A1 |
A web of paper is printed with selective non-variable information and vastly different variable information on portions of the paper web (17) which are ultimately separated into discrete documents. At least one ion deposition print unit ...
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WO/1996/012934A1 |
A color measurement system includes a measurement patch (200) utilizable on a continuous sample of color printed matter. The patch (200) has a first predefined shape with a color reference area (202) centrally located on the patch (200) ...
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WO/1996/001741A1 |
The disclosure describes an apparatus for treating fountain solution which comprises a recirculation assembly and a microporous filter assembly. The recirculation assembly is connected between the outlet and inlet of a fountain solution ...
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WO/1995/031333A1 |
This invention is a system and method for monitoring the quality of color printing on a substrate of a color printing press. The system includes a sensor (12), such as a CCD color video camera, for acquiring a color image of at least one...
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WO/1995/014575A1 |
Apparatus is provided for aligning two objects (1, 2), such as a board and screen in a screen printer, each having at least one reference mark (6a, 7a) on a surface thereof, whereby alignment of the objects is indicated by alignment of c...
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WO/1995/011806A1 |
The invention is a system for a printing press which maintains the density of the colored ink put down on a moving paper web. The system includes a scanning device (32) having a strobe light (35) for illuminating a color patch (P) in a c...
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WO/1995/003668A1 |
This invention relates to a system and method for managing ink. The system and method comprises an ink volume determination for determining the amount of ink to be applied by the printer. The ink volume determination comprises the steps ...
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WO/1995/002557A1 |
An improved process is provided for the steam conversion of dilute printer ink washup fluids, and especially those of a single color, in order to permit reuse of the ink fraction of the fluids as reconstituted printing inks. Preferably, ...
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WO/1995/000336A2 |
A process and arrangement are disclosed for controlling or regulating operations carried out by a printing machine. The object of the invention is to develop a process and arrangement which help and supplement the operator during a quali...
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WO/1995/000335A1 |
The invention relates to a device for inspecting the image and measuring the colour of at least one printed product produced by a printing machine with at least one printing group. The purpose of the present invention is to propose a dev...
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WO/1995/000337A1 |
A system and methods for controlling print quality of a printed product of a printer, which may comprise an image acquisition unit for acquiring an electronic test image of printing on the printed product after printing by the printer, a...
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WO/1994/029108A1 |
An automated printing press (10) is provided with a plurality of printing stations (13), each having a printing mechanism (60) which prints at least one component image at spaced apart locations along a web (11). Each printing mechanism ...
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WO/1994/025278A1 |
The invention concerns a procedure for controlling printing quality, wherein the digital presentation of the page original is utilized. As taught by the invention, prior to printing a plurality of measuring points are specified from the ...
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WO/1994/021465A1 |
An automatic cheque issuing device used as a document printer contains a device for print monitoring (GS, AE). The print monitor makes it possible to print a print monitor symbol (15) in a blank section of the document (12) when the latt...
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WO/1994/016893A1 |
A device for detecting registration errors between individual colours during multicolour printing in a long web-fed rotary press (2) has a scanner (24) with only one web-feeler (T1, T2, T3) per scanning head (25 to 27).
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WO/1994/011785A1 |
Unique laser ablation transfer (''LAT'') imaging films presenting options of flexibility and versatility hitherto alien to this art are produced, on-demand, by toning appropriate substrate as to provide thereon an ablative discontinuous ...
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WO/1994/011192A1 |
In a process for setting the moisture content in an offset rotary machine, a signal for modifying the moisture content is to be generated before the scumming limit is reached. For that purpose, the densitometrically measured optical dens...
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WO/1994/008791A1 |
The invention relates to an apparatus for the quality control of a print produced by a printing machine. The apparatus includes a CCD camera (2) and a measuring girder (1), extending substantially across the width of a printing surface t...
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WO/1994/007695A1 |
A device for maintaining an even roller mark with rubber rollers for rotary printing presses is designed to avoid scumming by keeping constant a roller mark produced between a form cylinder (12) and the rubber lining (29) of an inking ro...
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WO/1994/000297A1 |
The purpose of the invention is to obtain a drive for a web-fed multi-colour rotary press whose performance is adaptable to the intended production capacity. This is obtained by the fact that in a plurality of superimposed printing mecha...
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WO/1993/003325A1 |
A system and method for automatically establishing the position of a printed sample (18) relative to a reflectometer (14). The sample (18) is placed on a measurement table (10). A target incorporated with the sample (18) causes a step ch...
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WO/1992/022980A1 |
The method of displaying multitone images beginning with a grayscale original image capable of displaying a specific number of gray levels, which includes the steps of: selecting a plurality of colors from the image, one for each of the ...
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WO/1992/013721A1 |
A printing machine (7) includes a print head (8) and a set of sensors (14,16) adapted to accurately determine the relative position between the print head and a receiver (12) (print media) onto which an image is to be formed. Any disloca...
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WO/1992/012011A1 |
Printing apparatus has at least one print station including a blanket cylinder in rolling contact with an impression cylinder, a print cylinder for supporting a lithographic plate, the plate cylinder being in rolling contact with the bla...
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WO/1992/007717A1 |
An improved printing machine for coupling paper sheets from a paper stack (6) along an endless belt (13) to an impression cylinder (12) with continual movement of the paper sheet without stopping and starting. The instantaneous angular p...
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WO/1992/001562A1 |
The present invention relates to a technical field pertaining to control of synchronized phases between a plurality of printing rolls in a corrugated board printing machine. An object of the present invention is to realize the control of...
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WO/1992/000193A1 |
A reliable, fast-acting, web wrap detection system (28) is disclosed which is particularly useful in an offset printing press (12) for stopping operation thereof quickly enough to prevent the web (22) from wrapping around a blanket cylin...
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WO/1991/017050A1 |
Described is a process which enables the three elements typical of rotogravure (ink, dilution and solvent) to be controlled unambiguously using only two parameters, concentration and viscosity. In a special embodiment, the process can al...
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WO/1991/016254A1 |
A sheet feeding device for feeding paper sheets mounted on a hopper by a suction conveyor provided on the lower part of the hopper to the printing machine one by one, which device is provided with a motor for driving the suction conveyor...
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WO/1991/015369A1 |
A quality desk (11) of a newspaper printing plant provides inking zone control by placement of a printed page (14) against a datum edge (12) and manual identification (17, 18) where across the width of the page, relative to the datum edg...
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WO/1991/012500A1 |
A colour referencing system is provided whereby a process colour is first defined in terms of percentage levels of a number of base colours to create a standard reference, an ink mixture is experimentally defined for a flat colour which ...
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WO/1991/010612A1 |
An off-line web finishing system (10) performs plural functions on a pre-printed and rewound web (12) at a series of pieces of equipment arranged in a line. Tension in the web is set at a variable infeed at a constant value that is suffi...
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WO/1990/014955A1 |
The colours printed on a medium (5) are controlled for mutual displacement during the printing process by printing the medium (5) with at least a characteristic pattern coinciding for the colours and leaving a plurality of evenly distrib...
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WO/1990/012689A1 |
A system and method for generating indicia of registration error between respective, separately adjustable printing units of a printing press, the printing units cooperating to print an image on a moving web, the system being of the type...
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WO/1990/011894A1 |
The invention concerns a non-mechanical rapid-printing device with a feed mechanism for a continuous paper strip (12). The paper feed mechanism is linked to a transfer station (17) which is equipped with paper-conveying elements (44) and...
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