A liquid transfer apparatus includes: rollers configured to transfer supplied liquid to a blanket cylinder; a roller holding device configured to detachably hold the rollers and perform a rotating operation to move any one of the rollers to a predetermined position facing the blanket cylinder; and a contact-separation unit configured to bring the roller held by the roller holding device and disposed at the predetermined position into and out of contact with the blanket cylinder.

A web-fed printing machine that is highly variable in terms of its configuration, provides a high degree of positioning accuracy of processing modules and has a cost-efficient machine frame, includes a plurality of the processing modules fixed to the machine frame. Each respective processing module is advantageously fixed to the machine frame by a respective carrier module. Every carrier module includes two parallel longitudinal beams extending in the machine direction and two parallel crossbars which are oriented at right angles to the longitudinal beams and which interconnect the two longitudinal beams.

The present invention relates to a converting machine provided with an inversion transfer module (60). The converting machine comprises a printing module (16) comprising a first printing unit (17) arranged to print on a top side (S1) of a sheet (1), and a second printing unit (17) arranged to print a bottom side (S2) of the sheet. The inversion transfer module is arranged between the first printing unit and the second printing unit and comprises a first and a second inversion vacuum transfers (62, 64) which are configured to change the side of adherence and transportation of the sheet.

Variable format offset printing machine having a central impression cylinder The printing machine comprises a central impression cylinder (1) on which a web printable substrate (B) is supported and a plurality of printing stations arranged around the central impression cylinder (1). Each printing station comprises a blanket cylinder (2) of variable diameter, a plate cylinder (3) of variable diameter, and an offset inking unit (4). Said blanket cylinder (2), plate cylinder (3) and offset inking unit (4) are individually movable between respective withdraw positions and respective multiple working positions for different diameters of the blanket and plate cylinders (2, 3). At least one of said printing stations has the axis of the blanket cylinder (2) and the axis of the plate cylinder (3) comprised in an inclined first plane (P1) which does not comprise the axis of the central impression cylinder (1) at any of said multiple working positions for different diameters of the blanket and plate cylinders (2, 3).

Examples include a printing unit having a first tool-dependent printing nip formed by a pair of cooperating rotational bodies. The printing unit includes, along a transport path, downstream from the first tool-dependent printing nip, a first alignment cylinder and a first non-impact printing position to which at least one first print head is assigned. The printing unit further includes, along the transport path, downstream from the first non-impact printing position, a first curing device having a first curing area assigned thereto. The printing unit, downstream from the at least one first alignment cylinder, including at least one second alignment cylinder and a second non-impact printing position, to which a second print head is assigned. The printing unit, downstream from the second non-impact printing position, comprising a second curing device having a second curing area assigned thereto.

Examples include a printing unit having a first tool-dependent printing nip formed by a pair of cooperating rotational bodies. The printing unit includes, along a transport path, downstream from the first tool-dependent printing nip, a first alignment cylinder and a first non-impact printing position to which at least one first print head is assigned. The printing unit further includes, along the transport path, downstream from the first non-impact printing position, a first curing device having a first curing area assigned thereto. The printing unit, downstream from the at least one first alignment cylinder, including at least one second alignment cylinder and a second non-impact printing position, to which a second print head is assigned. The printing unit, downstream from the second non-impact printing position, comprising a second curing device having a second curing area assigned thereto.

Examples include a printing unit, which has at least one first tool-dependent printing nip formed by a pair of cooperating rotational bodies. The printing unit includes, downstream from the first tool-dependent printing nip, along a transport path provided for a transport of substrate, at least one first alignment cylinder and at least one first non-impact printing position, to which at least one first print head is assigned. The printing unit further includes, downstream from the first non-impact printing position, along the transport path provided for the transport of substrate, at least one first curing device having a first curing area assigned thereto. Additionally, in the region of the first non-impact printing position, the transport path provided for the transport of substrate is defined by the first alignment cylinder or a rotational transport body arranged directly upstream from the first alignment cylinder.

A printing press for security printing has an Orloff offset printing unit comprising a plurality of stencil cylinders which can be inked, in each case, by an associated inking unit, an ink-collecting cylinder which interacts with the plurality of stencil cylinders, an Orloff plate cylinder which interacts with the ink-collecting cylinder, a transfer cylinder which interacts with the Orloff plate cylinder, and an impression cylinder which forms a printing point with the transfer cylinder. At least the transfer cylinder which interacts with the Orloff plate cylinder in the thrown-on position is included by a first printing unit section and is mounted in or on a first part frame. The ink-collecting cylinder is included by a second printing unit section and is mounted in or on a second part frame which is different from the first part frame. The first and the second part frame can be moved optionally into a first relative position with respect to one another, which forms a working position, and into a second relative position with respect to one another which forms a maintenance position. In the maintenance position, a space is formed between the first and the second printing unit section and/or between the first and the second part frame, which space ensures direct access at least to the ink-collecting cylinder, to the Orloff plate cylinder and to the transfer cylinder which interacts with the Orloff plate cylinder. Moreover, the invention relates to a method for changing a printing forme and for starting production.

In an apparatus for manufacturing an LED reflective sheet, release paper adhesive printing grooves are integrally formed on both sides of a printing roller having pattern printing grooves formed therein along an outer circumference thereof, such that when printing a light-induced pattern on the reflective sheet through the printing roller, a release paper adhesive pattern is also printed, thus both ends of the release paper are adhered to the release paper adhesive pattern during attaching the release paper to the reflective sheet, and thereby preventing an occurrence of a lifting phenomenon between the release paper and the reflective sheet.

A cover of a stencil printer is hingedly mounted to a frame, and movable between a closed and open positions. The cover includes an elongate opening formed therein and a movable door configured to selectively close the elongate opening. The elongate opening is sized to enable the stencil and/or a tooling tray to pass through. A controller is configured to control movement of the movable door between a closed position and an open position. A sensor assembly is proximate the elongate opening. The sensor assembly is coupled to the controller and configured to detect an object within the elongate opening when moving the movable door to the closed position. The sensor is configured to generate a signal to the controller when detecting an object within the elongate opening. The controller, upon receiving the signal from the sensor, is configured to move the movable door to the open position.