Abstract: The invention concerns an installation comprising means controlling printing quality supplied by a printed sheet feeding device. Downstream, printing means print serial numbers and/or affix other elements. The quality of the number printing is controlled by a control device. A transfer device transports the sheets to a stock of three stacks one of which collects the defective sheets. A marking device affix a mark on the sheets considered unsuitable during the quality control.

Abstract: An intaglio-printing press for printing security documents comprising a plate cylinder (4) with at least one engraved printing plate (6), an impression cylinder (3), a wiping device (10) and an inking system, (5, 7a-8d); it further comprises a laser marking device with laser marking heads (15) arranged facing said plate cylinder downstream from said wiping device and upstream from the contact zone between said plate cylinder and said impression cylinder.

Abstract: The machine comprises at least a transfer cylinder, an impression cylinder, a plate cylinder, a collector cylinder, and a delivery cylinder, each said impression cylinder, plate cylinder and collector cylinder comprising pits with, respectively, gripping means, clamping means and holding means for holding, respectively, at least one sheet, at least one plate and at least one blanket. The number of pits per cylinder and the relative position of said cylinders are such that the pits of the impression cylinder, plate cylinder and collector cylinder pass each other at the same moment during operation of the printing machine.

Abstract: The numbering box for typographic numbering in sheet or web fed printing machines, said box numbering with p digits k*n items on said sheets or web for allowing a sequential collecting of said items in the finishing and collating process of layers of q sheets or of web cut into layers of q sheets, wherein said box carries out a purely sequential actuation for digits 1 to s, where 10S is smaller or equal to q, a purely individually settable actuation for digits s+1 to r, where the maximum number printable by digits 1 to s and s+1 to r is smaller or equal to k*n*q, and a sequential actuation for digits r+1 to p.

Abstract: The invention relates to a device for controlling material comprising a sensor device and a lighting device, whereby the material which is to be controlled is guided on a transparent drum.

Abstract: The invention relates to a device for checking the quality of articles to be checked, comprising a first inspection device which detects image data of a surface on the front side of the article to be checked and an evaluation device which evaluates the quality of the article to be checked based on the detection result of the inspection device. A second inspection device is provided for detecting a rear side of the articles to be checked and a third inspection device is provided for illuminating the articles to be checked.

Abstract: The invention concerns an installation comprising means controlling printing quality supplied by a printed sheet feeding device (1–3). Downstream, printing means (12–16) print serial numbers and/or affix other elements. The quality of the number printing is controlled by a control device (17). A transfer device (18) transports the sheets to a stock of three stacks (21, 22, 23) one of which collects the defective sheets. A marking device (19) affix a mark on the sheets considered unsuitable during the quality control.

Abstract: The apparatus has at least one optical sensor (7, 8), which emits a light beam (13, 14), inclined at an angle in relation to the surface of the pallet (2), and irradiates the surface of the pallet (2) at a point of reflection, and supports (9, 10) with cylinders for displacing the point of reflection by a predetermined distance over the surface of the pallet (2).

Abstract: The nozzle has a channel (24) in which a cleaning solution is injected under pressure, and an outlet (26) through which the solution is sprayed against a cylinder. The outlet (26) is formed by a first part (23) and a second part (25), said second part (25) being movable with respect to said first part (23) in order to vary the size of said outlet (26).

Abstract: The invention relates to a printing machine by intaglio engraving comprising a rack (01; 11; 14) with a stationary part (01) and a moving part (11; 14). A plate cylinder (07) is rotationally mounted inside the stationary part, and an Orlof-type cylinder (12) is mounted inside the moving part. The moving part is mounted on a rail (04) in a suspended manner.

Abstract: The control element has a first drawing printed on a first side of the article, comprising at least a first set of geometrical shapes. It includes a second drawing printed on a second side of said article, the second drawing being printed so as to face the first drawing and be in register with the latter, said second drawing comprising at least a second set of geometrical shapes corresponding to the first screen. At least one of said geometrical sets includes sectors which are offset so that, when the front side/reverse side register is correct, the control element has regions of variable density which are visible in transmitted light and are created by said offset sectors.

Abstract: The invention relates to a stacking device for a machine for processing sheets, especially a sheet printing machine. Said device can be displaced between a first stacking position (02) and a second stacking position (03), and comprises carriers for a pallet receiving the stacked sheets in the first stacking position (02) and the second stacking position (03). The inventive device also comprises transport units (14, 16, 18) for transporting the pallets (09, 21) from each stacking position (02, 03) to a single pile of pallets (11), and for stacking the pallets (12, 19) in the pile of pallets (11).

Abstract: The apparatus has at least one optical sensor (7, 8), which emits a light beam (13, 14), inclined at an angle in relation to the surface of the pallet (2), and irradiates the surface of the pallet (2) at a point of reflection, and supports (9, 10) with cylinders for displacing the point of reflection by a predetermined distance over the surface of the pallet (2).

Abstract: A method by which stacks of printed sheets can be formed and, at the same time, the risk of soiling of the stacked sheets can be reduced to the maximum extent. To this end a printing machine is proposed, in particular a sheet-fed printing machine, into which unprinted and intermediate sheets are alternatively feed, wherein the printing is registered such that the printing occurs only on the unprinted sheets and not on the intermediate sheets. In this way, the intermediate sheets prevent damage to the print on the printed sheets.

Abstract: The invention relates to an intermediate storage device for objects (11) to be transported. Said device comprises a plurality of carriers (9) which circulate on a closed strip and are used for the objects (11), e.g. printed products; an introducing device (12) arranged on a first point of the strip, and used to introduce the printed products (11) into the carriers (9) passing said point; a distribution device (26) arranged on a second point of the strip, and used to distribute the printed products (11) carried by the carriers (9) passing said second point; and a removal device (16) for removing printed products (11) from a carrier (9) in an area of the strip which is displaced between the first and the second point, said area comprising a section (07/08) which is oriented in a first direction and a section (07/08) which is oriented in a second direction opposite the first.

Abstract: A continuous inkjet printer is described, which comprises a combination of dispersion agitation means, heated ink supply and printhead and tailored, heated, filtration regime. The use of this combination allows the printing of inks containing a non-magnetic pigment that exhibits “soft settling” upon standing.

Abstract: The ink-agitator (1) is supported and guided by fixed means between pedestals (2) and (3) above an ink fountain containing security ink. It is driven in alternate movement on its guiding means and its tip is dipping into the ink. Bore (11) receives a detector head in the form of a transformer with primary winding arranged for normally producing a “zero” magnetic field, adjustable ferrite core place in such a manner that the “zero” magnetic field is obtained for a standard magnetic property of the security ink, and secondary winding going out of balance and issuing a signal if the magnetic property of the ink into which the tip of the ink-agitator is displaced undergoes modifications. The output signal is transmitted to feed line (4) with slide contact (6) whereas the ground pole is connected through wire (5) and sliding contact (7).

Abstract: An inking plate for a rotary printing machine mounting on a cylinder is provided. The inking plate is formed of at least a base plate (11) and a PVC composition material of at least one layer (15; 27) deposited on said base plate (11) over a majority of the surface of the base plate (11). The surface of the deposited material is designed to be cut so as to define relief surfaces (16) having limits corresponding to the outlines of surfaces to be inked. The cutting of the deposited material occurs when the base plate (11) is held in a cylindrical form so as to permit mounting on the cylinder without substantial deformation, from an as-cut state, of the base plate (11) or the deposited material.

Abstract: A method by which stacks of printed sheets can be formed and, at the same time, the risk of soiling of the stacked sheets can be reduced to the maximum extent. To this end a printing machine is proposed, in particular a sheet-fed printing machine, into which unprinted and intermediate sheets are alternatively feed, wherein the printing is registered such that the printing occurs only on the unprinted sheets and not on the intermediate sheets. In this way, the intermediate sheets prevent damage to the print on the printed sheets.

Abstract: The invention relates to a process for obtaining by electronic means the automatic recognition of characters, even if printed in a variable position on a highly contrasted structured background drawing. The process consists in firstly producing a model of the background, obtained by capturing with an electronic camera the images of several samples, on which images there is only the background. Thereafter, the models of the symbols (for example alphanumeric characters) to be recognized are produced, either capturing the images of a set of characters printed on white background, or using the commercially available computer files of the characters of the chosen fonts. At the time of recognition, the position of each of the characters to be recognized is firstly measured with respect to the position of the printing of the drawing of the background.