A transport device includes a transport belt having a support surface configured to support a medium, and configured to transport the medium supported by the support surface, a cleaning roller including an absorbent member configured to absorb cleaning liquid, and configured to clean the support surface as the absorbent member comes into contact with the support surface, a supply unit configured to supply the cleaning liquid to the cleaning roller, and a spray unit configured to spray gas to the support surface cleaned by the cleaning roller. The spray unit is configured to spray the gas to the cleaning roller.

A transport device includes a transport belt having a support surface configured to support a medium, and configured to transport the medium supported by the support surface, a cleaning roller including an absorbent member configured to absorb cleaning liquid, and configured to clean the support surface as the absorbent member comes into contact with the support surface, a supply unit configured to supply the cleaning liquid to the cleaning roller, and a spray unit configured to spray gas to the support surface cleaned by the cleaning roller. The spray unit is configured to spray the gas to the cleaning roller.

The cleaning device (20) for cleaning a cylindrical roller (50), for example an anilox roller of a printing machine, includes a cleaning head (30) with a cleaning chamber (110), in which there is housed a mechanical cleaning member (60), and with which there are associated feeding members (70) for feeding a cleaning liquid into the cleaning chamber (110). The mechanical member (60) and cleaning liquid dispensed by the feeding members work in combination inside said cleaning chamber (110) to clean the lateral surface of the roller (50).

Disclosed is a corrugated paperboard printer comprising a chamber which reserves ink, wherein the chamber comprises a chamber frame comprising an ink reservoir which reserves the ink. A steel member and a recovery pipe are arranged on the opposite side of an anilox roll across the chamber frame. The steel member comprises a web extending in an up-down direction, and a first flange and a second flange connected, respectively, to up-down directional opposite ends of the web. The web is penetratingly formed with a maintenance opening in accordance with the position of a coupling port valve or the like. The second flange is formed with an insertion part for allowing the recovery pipe or the like to be inserted therein

Disclosed is a corrugated paperboard printer comprising a pressing device for applying a pressing force to press a chamber which reserves ink toward an anilox roll. The pressing device is configured to apply a first pressing force, and a second pressing force which is greater than the first pressing force, respectively, to a first pressing area and a second pressing area in a back surface of a chamber frame. In a state in which no pressing force is applied by the pressing device, bending occurring in the chamber frame due to a load transmitted from a printing roll to the chamber frame via the anilox roll as printing is performed to a corrugated paperboard sheet is greater in the second pressing area than in the first pressing area.

Embodiments of an image panel are provided. The image panel includes a transparent substrate having a first major surface and a second major surface opposite the first major surface. A first image layer is disposed on the second major surface. A diffuser layer is disposed on the first image layer, and a second image layer is disposed on the diffuser layer. The second image layer includes mask regions and image regions. An optical density of the image panel is at least 3.0 in the mask regions and less than 3.0 in the image regions. The image regions are not visible from the first major surface when light is not incident upon the second major surface. The image regions are visible from the first major surface and form a composite image with the first image layer when light is incident upon the second major surface.

An apparatus for cleaning surfaces of a printing press has an adjusting device having a pressing element for pressing a cleaning element against the surface to be cleaned when needed. The adjusting device has a drive for moving the pressing element relative to the surface to be cleaned between a home position, in which the cleaning element is positioned at a distance from the surface to be cleaned, and a cleaning position in which the cleaning element is in contact with the surface to be cleaned or, respectively, is in the direct proximity of the surface to be cleaned. An overload safety device is configured to respond upon a critical force acting on at least one of the adjusting device or pressing element being exceeded and to move the pressing element into an overload position.

An apparatus for cleaning surfaces of a printing press has an adjusting device having a pressing element for pressing a cleaning element against the surface to be cleaned when needed. The adjusting device has a drive for moving the pressing element relative to the surface to be cleaned between a home position, in which the cleaning element is positioned at a distance from the surface to be cleaned, and a cleaning position in which the cleaning element is in contact with the surface to be cleaned or, respectively, is in the direct proximity of the surface to be cleaned. An overload safety device is configured to respond upon a critical force acting on at least one of the adjusting device or pressing element being exceeded and to move the pressing element into an overload position.

A cleaning fabric wound on a roll (12) is use for cleaning printing cylinders (2, 3, 4) of a printing system (1). The cleaning fabric (13) includes a liquid absorbable material configured to be soaked with a cleaning liquid containing a polar additive configured to make the cleaning liquid polar. The roll (12) of cleaning fabric (13) is included in a cleaning cassette (10) which is movable between an idle position out of contact with the printing cylinders, and an active position in which the cleaning fabric (13) included in the cassette (10) is in contact with a printing cylinder to be cleaned.

A printing press cleaning device includes a solvent supply nozzle (34) configured to supply a solvent containing a surfactant to an ink roller group (21) that includes a plurality of ink rollers configured to receive ink from an ink fountain (18a) and send the ink to a plate cylinder (17). The cleaning device includes a first or second cleaning solution supply nozzle (35, 36) configured to supply a first or second cleaning solution containing a volatile organic solvent to the ink roller group (21). The cleaning device includes a doctor blade (33) configured such that a distal end thereof can come into contact with and be moved away from an ink roller of the plurality of ink rollers, and scrape and collect the ink, the solvent, and the first or second cleaning solution of the ink roller group (21) at a contact position of the distal end that comes into contact with the ink roller. It is possible to provide a printing press cleaning device capable of shortening a cleaning time and improving an operation efficiency by efficient cleaning without increasing the supply amount of the cleaning solution.