A printing apparatus includes a heat transfer system for transferring heat away from or to a print medium moving in a movement direction through the printing apparatus. The heat transfer system includes a heat transfer member with a rotatable support surface configured for supporting the print medium. The heat transfer member is provided with at least one channel. The support surface is rotatable around an axis in order to move the print medium in the movement direction. A fluid circulation means is configured for supplying a fluid through said at least one channel. The at least one channel is configured such that, in operation, when fluid is supplied through said at least one channel, torque is generated in a fluido-mechanical manner around said axis, contributing to a rotational movement of the support surface of the heat transfer member.

An optical light reflectance measurement system above an imaging member surface measures fountain solution surface light reflectance interference on reflective substrate portions of the imaging member surface in real-time during a printing operation. The measured light reflectance interference corresponds to a thickness of the fountain solution layer and may be used in a feedback loop to actively control fountain solution layer thickness by adjusting the volumetric feed rate of fountain solution added onto the imaging member surface during a printing operation to reach a desired uniform thickness for the printing. This fountain solution monitoring system may be fully automated.

An image based correction system compensates for the image quality artifacts induced by thermal ghosting on evolving imaging member surfaces. With thermal ghosting directly tied to previous image content, a feed forward system determines thermal ghosting artifacts based on images previously rendered and generates an open loop gray-level correction to a current image that mitigates undesirable ghosting. For example, the correction system compensates for the thermal ghosting by making the current image “lighter” in areas that will be imaged onto warmer blanket regions, thereby cancelling out TRC differences between different temperature regions. A temperature sensor is used to measure the temperature of the imaging blanket due to the stresses induced by the image. This data is used to learn the parameters of the temperature model periodically during operation, and used in subsequent corrections to mitigate thermal ghosting in spite of changes in blanket properties over use and time.

The present invention relates to a continuous printing apparatus using a vacuum suction roller, and it is to provide a continuous printing apparatus and method using a vacuum suction roller capable of reducing costs and improving productivity by continuously printing on the surface of a woven fabric using the vacuum suction roller.

The present invention relates to a continuous printing apparatus using a vacuum suction roller, and it is to provide a continuous printing apparatus and method using a vacuum suction roller capable of reducing costs and improving productivity by continuously printing on the surface of a woven fabric using the vacuum suction roller.

A printing apparatus includes a cooling system for cooling a print medium. The cooling system includes a cooling member with a support surface configured for supporting the print medium. The cooling member has a first end and a second end and the support surface extends in a lateral direction between the first end and the second end. The cooling member is provided with supply channels and return channels extending between the first and the second end. A fluid circulation means supplies fluid through the supply channels from the first end to the second end, and back through the return channels from the second end to the first end.

A cast and cure system which can be implemented by UV lacquer and which enables application of various patterns and sheathing on printed materials in areas such as flexible packaging, printing, serigraphy, label printing and offset tin printing. The system includes at least one UV cassette which enables the UV lacquer to pass under the UV light together with the belt and therefore curing the UV lacquer. The system relates to a micro embossing unit with belt-which has at least one cooler cylinder which cools the film coming out of the UV cassette, at least one cylinder which enables the film to be carried during the sheathing and at least one tension control system which automatically adjusts the tension of the cylinders.

A flexographic printing press for printing a substrate web comprises at least one printing unit and at least one central cylinder. A plurality of printing couples are arranged around the periphery of the at least one central cylinder. A horizontally aligned dryer unit, having at least one guide element, is arranged above the printing unit in a vertical direction. The at least one horizontally aligned dryer unit has at least two dryer sections with one dryer section being arranged separated from the next dryer section by at least one diverting assembly. The at least one flexographic printing press has at least one roll unwinder and at least one roll winder. The at least one roll unwinder and the at least one roll winder are arranged on opposite sides of the at least one central cylinder.

A printing machine for printing on a printing substrate web includes a plurality of inline flexographic printing units which are disposed in a plane accessible to an operator of the machine. Each one of the two flexographic printing units of a respective duplex printing station includes a respective impression cylinder and a dryer disposed between the two impression cylinders along a path of web travel of the web of printing substrate. A method of operating the printing machine is also provided.

A printing press has at least one printing unit that comprises one or more printing couples, by the use of which printing press, sheet-format substrate can be printed on at least one side in at least one printing nip. The printing press has at least one product receiving unit, in which the printed sheet-format substrate can be collected to form bundles of products or intermediate products. A rotatable cooling cylinder, for guiding or conveying the sheet-format substrate, is located upstream of the product receiving unit in the substrate path. At least one first electrode is arranged on, and is directed towards the substrate path section that runs over a circumferential section of the cooling cylinder. When an electric voltage is applied to the substrate path, substrate being guided along the substrate path past the electrode is or can be electrostatically charged.