Abstract: A printing press and a method for operating the printing press is disclosed. The press has at least one printing unit including at least one printing couple with a transfer cylinder, a form cylinder carrying an imageable and de-imageable printing form, an inking couple and a dampening unit. A memory is assigned inside the printing press to at least one printing unit having several memory locations for form cylinders, where the form cylinders for the printing units can be transferred automatically by at least one transport device between a printing couple of the printing unit and a memory location of the memory, where the form cylinders can be transferred automatically inside the memory between the various memory locations, and where an imaging device is assigned to at least one memory location to image and de-image in advance an imageable and de-imageable printing form positioned on a form cylinder.

Abstract: The invention relates to a direct drive for a cylinder of a converting machine, in particular a printing press or coating machine that converts sheet-type printed materials. The aim of the invention is to develop a direct drive for a cylinder of the afore-mentioned type in such a way that the required lateral corrections are significantly reduced. To this end, the direct drive includes a rotor (14) that is detachably mounted on the end of the cylinder (6, 10) and a stator (15) that is concentric with the rotor and is detachably fixed to the side frame (13). A register motor (16), which is fixed to the frame, is coupled to gearing (17, 18) and this gearing (17, 18) is coupled to a helical gear or screw drive (19, 2, 21, 22), which is in turn coupled to the cylinder (6, 10) by means of an axial/rotative coupling (23, 24).

Abstract: In order to make handling easier, an apparatus for pulling a sleeve onto and off a printing-press cylinder has a head piece (8) having a positioning device (13) for defining the position of the head piece (8) with respect to the cylinder (1), a connecting device (14, 15) for fixing the head piece (8) to the cylinder (1), and a centering device (12) for defining the position of the sleeve (2) with respect to the head piece (8) and a deposition bar (9) for the sleeve (2), which deposition bar (9) is attached to the head piece (8).

Abstract: An apparatus for fixing a sheet on the surface of an electrically conductive cylinder of a printing machine for processing sheets, in particular, a sheet-fed offset printing machine. The apparatus includes an electrode that extends over the width of the cylinder for creating an electric field for adhering the sheet to the surface of the cylinder and an air directing device for directing pressurized air streams against the sheet and preliminary positioning the sheet onto the cylinder prior to being acted upon by the electric field. Various alternative embodiments of the sheet fixing apparatus are disclosed.

Abstract: A flexo printing screen roller having a surface, which has cells which can be filled with ink or paint, is disclosed. The cells have different depths in order to apply ink or paint of varying thickness to a flexo printing form and thus ultimately to a substrate to be printed.

Abstract: A printing press coupling system and method for connecting supply lines to a printing press module, specifically to a printing couple or a dampening unit, of a printing press, is disclosed. The coupling system includes a coupling element on a printing press side and a coupling element on a supply line side, where the coupling element on the printing press side and the coupling element on the supply line side comprise all interfaces for centrally connecting all fluid supply lines and/or all electrical supply lines so that all fluid supply lines and/or all electrical supply lines are connectable jointly to the printing press module.

Abstract: A method and apparatus for generating a color reference for an image to be printed for visualizing the same on a true-color monitor is disclosed. Lower-resolution image data are generated from high-resolution raster data for the image to be printed which are obtained from page description data for the image to be printed. The lower-resolution data are converted into display data which serve as color reference for the image to be printed and which can be visualized on a true-color monitor. An actual transmission characteristic is ascertained. The actual transmission characteristic ascertained is compared with a specified (desired) transmission characteristic, where, on the basis of this comparison, a correction curve is calculated which is required to arrive at the desired transmission characteristic starting with the actual transmission characteristic. The display data are ascertained using the calculated correction curve.

Abstract: A folding apparatus of a printing press, in particular a web-fed rotary press, and a method for operating the same, is disclosed. The folding apparatus has a folding superstructure or magazine superstructure, a cutting unit located downline from the folding superstructure when viewed in the transportation direction of the substrate webs, and a cross-folding unit located downline from the cutting unit when viewed in the transportation direction of the substrate webs and/or longitudinal folding unit, where the folding superstructure includes at least one sensor to detect an anticipated cross-cutting error. On the basis of the anticipated cross-cutting error detected by the, or each, sensor, a drive for the cutting unit is governed in order to compensate for the anticipated cross-cutting error at the cutting unit.

Abstract: The invention concerns a method for controlling a machine for processing sheet material that has at least one individually driven cylinder. The method involves interrupting a pressure contact in a contact zone between a plate cylinder 10 as a directly driven cylinder and a neighboring rubber blanket cylinder 8. The plate cylinder 10 is then turned by the direct drive from its particular angular position into an angular position in which a first printing plate located on the plate cylinder 10 can be removed. The first printing plate is then removed from the plate cylinder 10 and a second printing plate is brought up and secured to the plate cylinder 10. The plate cylinder 10 with the second printing plate is then turned by the direct drive into an angular position appropriate for the printing process.

Abstract: A printing unit of a web-fed rotary press, with several printing couples, wherein each printing couple has a form cylinder, a transfer cylinder, an inking couple and preferably a dampening unit. At least one printing couple of the printing unit is positioned on each side of the printing unit, wherein on both sides of the printing unit, the inking couple and possibly the dampening unit of the printing couple or of each printing couple arranged on the respective side of the printing unit form an inking module. Each inking module of the printing unit can be moved relative to the other assemblies of the printing unit by an air cushion conveyance device.

Abstract: A method for the printing of a print fabric is disclosed. Output data, more preferably an output matrix of a print image to be printed with an inkjet printing device is converted to target data, more preferably a target matrix, for controlling the inkjet printing device in real time dependent on a current printing speed, a current drop frequency of the inkjet printing head of the inkjet printing device, and a current inclination angle of the nozzle row of the inkjet printing head relative to the transport direction of the print fabric prior to transmitting the data to the inkjet printing device.

Abstract: The invention relates to a method and a device for controlling a processing machine for sheet-like material having at least one cylinder that can be driven individually and that carries a printing form. The method involves, inter alia, eliminating the pressurized printing contact between the plate cylinder 10 and adjacent rubber blanket cylinder 8 and for cleaning processes the inking unit rollers are separated on the drive side from the main drive and gear train of the sheet-guiding cylinder 6 and temporarily coupled with the directly driven plate cylinder 10. The plate cylinder 10 and inking unit rollers are driven at a first rotational speed and the rubber blanket cylinder 8 and the adjacent sheet-guiding cylinder 6 are driven at a second rotational speed by the main drive and gear train.

Abstract: A method and apparatus for collecting operating data from machines used in the printing industry, in particular from printing presses, is disclosed. At least one machine linked to a control device, or an operating data collection device, automatically transmits data during operation of the machine to the control device, or the operating data collection device, and a time frame for operating data collection is generated automatically from the machine data such that machine activity time intervals about the operating time of the machine on the one hand and machine downtime intervals on the other hand are derived from the machine data. Reasons for downtime are automatically assigned to the established machine downtime intervals and/or can be assigned semi-automatically.

Abstract: A printing blanket comprising a rigid carrier plate on which an elastic layer is arranged is provided. The elastic covering layer has a surface that can be inked and by which a printing image can be transferred onto a printing material. An end of the carrier plate is not covered by the elastic covering layer, and an end of the elastic covering layer is covered by a sealant. The sealant covered end of the elastic covering layer has a sealing geometry that provides a greater surface area to which the sealant can adhere than a smooth flat surface at the end of the elastic covering layer.

Abstract: In order to process inexpensive printing materials in connection with the processing of an extremely wide range of coating media, such as solvent-containing printing inks, and, moreover, in connection with variable format configuration and extremely flexible processing processes, provision is made to couple a web-fed rotary press and a sheet-fed rotary press to each other. For this purpose, a transfer assembly 7 in the form of a roll-sheet feeder is arranged between the presses.

Abstract: A printing couple of a printing unit for a web-fed rotary press includes a transfer cylinder, a form cylinder, and an inking couple having at least one roller. The transfer cylinder is coupled to the form cylinder, and the form cylinder is coupled to at least one roller of the inking couple, by side-by-side straight gears arranged in a first gear plane. The drive motor is coupled to the transfer cylinder by side-by-side helical gears arranged in a second gear plane.

Abstract: A turner bar for a rotary press for deflecting a substrate web in two web running directions is acted upon by pressurized air. The turner bar includes at least one inner tube and one outer tube, which have air discharge holes assigned to one another to produce an air cushion above the turner bar. The inner tube can be adjusted relative to the outer tube, so that the air discharge holes can be closed in such a way that the air cushion is adapted to the margins of the substrate web. It is thus possible to use the turner bar in both web running directions.

Abstract: A reel-fed rotary printing press including printing units for printing at least one web, wherein each printing unit includes a form cylinder with a circumference defining a circumferential direction and a length defining a longitudinal direction. The form cylinder can be lined with at least two broadsheet pages extending upright in the circumferential direction, and at least two broadsheet pages extending widthwise in the longitudinal direction. In order to produce tabloid products while maintaining their book structure, the form cylinder can also be lined with at least two tabloid pages extending upright in the circumferential direction, and at least two tabloid pages extending widthwise in the longitudinal direction.

Abstract: The invention provides an apparatus for the mounting and/or demounting of at least two printing sleeves outside a printing unit of a printing machine. The printing sleeves include an outer printing sleeve forming a printing surface and an inner printing sleeve providing diameter compensation between the outer printing sleeve and an impression cylinder of the printing machine. The apparatus having a reception device onto which an inner printing sleeve can be pushed for mounting the two printing sleeves. The apparatus having at least one compressed-air device for facilitating the fixing of the inner printing sleeve on the reception device and for conducting compressed air through orifices assigned to the inner printing sleeve in order thereby to make it possible for an outer printing sleeve to be pushed more easily onto the inner printing sleeve.

Abstract: A printing unit of a rotary printing press with a transfer cylinder and a form cylinder interacting with the transfer cylinder is disclosed. The body length of the transfer cylinder and the form cylinder corresponds to six horizontal or upright print pages and the transfer cylinder has two channels offset by 180° in the circumferential direction to accommodate printing blankets. Two or three printing blankets are arranged next to one another in the longitudinal direction of the transfer cylinder. With the arrangement of two printing blankets, one printing blanket is twice as wide as the second printing blanket and the printing blankets each are attached in one of the two channels offset by 180°. With the arrangement of three printing blankets, two adjacent printing blankets are attached in a channel and the third printing blanket is attached in the offset channel.