An inking device is used to ink a cylinder or a roller of an intaglio printing inking unit. A doctor blade device is located in the vicinity of the ink level of the printing ink in an ink trough of the ink application device. The ink trough, the doctor blade device and the cylinder or roller to be inked can be heated. This allows the use of solvent-free printing inks at temperatures in the range of 100.degree. C.

An inking arrangement has a structure in which a printing ink extracted from an inking source by an inking roller is transferred to an ink applying roller through an ink roller train including a plurality of inking rollers and the printing ink is then transferred to a scanning area of a plate cylinder from the ink applying roller. A doctor device is disposed above a top portion of an outer peripheral surface of the ink applying roller, the doctor device being circumscribed with the top portion a...

There is disclosed a roller for evenly distributing and spreading liquid in which the roller includes a roller core having a predetermined durometer hardness mounted thereon and an exterior shell having a durometer hardness different than that of the rubber element bonded to the core.

A plurality of ink pumps are mounted directly on an ink rail. The ink pumps are gear pumps, each having a D.C. motor associated therewith. Each gear pump delivers ink to a particular section of the ink rail from which the ink is then applied to a particular circumferentially extending segment of the ink roll corresponding to a column on the page to be printed. By controlling the speed at which the motor operates, the amount of ink pumped can be varied, and thus the amount of ink delivered to the...

An inking unit for a printing machine, which includes at least one ink roller rolling on a plate cylinder of the printing machine, an ink jet printing apparatus with a plurality of ink jets that can be controlled selectively, and an ink transfer device with a rotating mantle surface for transferring printing ink from the ink jet printing apparatus to the at least one ink roller. A compact and stencil-free inking unit for high-quality printing is achieved and the at least one ink roller and the i...

In the context of an inking unit with at least one pitted roll which is provided with an ink chamber doctor unit whose preferably two doctor blades arranged with a spacing in the peripheral direction of the roll and which delimit an ink chamber between them, the invention makes it possible to use a relatively small amount of ink if a rotatable fountain roll is mounted in the ink chamber to engage the pitted roll.

An inking unit for a rotary printing machine, a frame and a plurality of rollers. The plurality of rollers includes two inking rollers fixedly mounted to the frame so as to be spaced from one another, and a transfer roller mounted between the two inking rollers. Bearing levers are pivotably mounted to one of the two inking rollers. The transfer roller is mounted to the bearing levers so as to be pivotable between an operating position between the two inking rollers and a pivoted-out position awa...

There is disclosed a printing apparatus having a print head and an inking mechanism for inking the print head. The inking mechanism comprises an ink roller, an inker body or carrier for the ink roller and structure for movably mounting the inker body. The ink roller is rotatably mounted to the inker body by mounting means including a pair of mounting members. The inker body has a pair of undercut slots and the mounting members have respective flanges received in the slots. Each mounting member i...

A device for applying ink to a printing surface is described. The device includes two resilient ink flow control blades. The blades are deflected by contact with said surface to allow ink to flow onto the latter. The blades close to cut off the flow of ink as the device is lifted off the surface.

An inking device for record media includes a self-contained ink reservoir bordered by a holder portion as one wall of the reservoir, and a backing plate as another wall adjacent a porous rubber electro pad. The backing plate includes a plurality of chamfered apertures therethrough which are circumscribed by a like number of slotted tubes which tubes separate the backing plate and the holder portion. A steel ball is positioned within each tube and controls the flow of ink from the ink reservoir t...