In some examples, a gravure printing unit for printing onto a substrate includes a forme cylinder that has, on an outer circumference, a pattern of recesses for forming an image. The gravure printing unit further includes an inking unit for inking the pattern of recesses on the forme cylinder. The inking unit includes a first inking unit cylinder having line-like recesses on an outer cylindrical surface that correspond to line-like recesses of the pattern of recesses on the outer circumference of the forme cylinder. Two end-aligned line-like recesses on the outer cylindrical surface of the first inking unit cylinder are separated by a supporting ridge and correspond to a single uninterrupted line-like recess on the circumference of the forme cylinder. An upper surface of the supporting ridge lies at a level of an undisrupted region of the outer cylindrical surface of the first inking unit cylinder.

In some examples, a gravure printing unit for printing onto a substrate includes a forme cylinder that has, on an outer circumference, a pattern of recesses for forming an image. The gravure printing unit further includes an inking unit for inking the pattern of recesses on the forme cylinder. The inking unit includes a first inking unit cylinder having line-like recesses on an outer cylindrical surface that correspond to line-like recesses of the pattern of recesses on the outer circumference of the forme cylinder. Two end-aligned line-like recesses on the outer cylindrical surface of the first inking unit cylinder are separated by a supporting ridge and correspond to a single uninterrupted line-like recess on the circumference of the forme cylinder. An upper surface of the supporting ridge lies at a level of an undisrupted region of the outer cylindrical surface of the first inking unit cylinder.

A primer roller may include a cylinder having an outer support surface. The outer support surface support surface may have a length in an axial direction and a fixed outer diameter extending along the length. The roller may further comprise, at least at least one elastically deformable annular sleeve having an axial length less than the axial length of the support surface of the cylinder an external diameter greater than the outer diameter of the support surface of the cylinder, and an internal diameter which provides a friction fit on the support surface of the cylinder. The outer surface of the support roller comprises a plurality of fluid outlets. The outlets are distributed about the support surface. Fluid expelled from the fluid outlets enables the sleeve to be slidably positioned relative to the support surface. A priming apparatus and a print press are also disclosed.

A primer roller may include a cylinder having an outer support surface. The outer support surface support surface may have a length in an axial direction and a fixed outer diameter extending along the length. The roller may further comprise, at least at least one elastically deformable annular sleeve having an axial length less than the axial length of the support surface of the cylinder an external diameter greater than the outer diameter of the support surface of the cylinder, and an internal diameter which provides a friction fit on the support surface of the cylinder. The outer surface of the support roller comprises a plurality of fluid outlets. The outlets are distributed about the support surface. Fluid expelled from the fluid outlets enables the sleeve to be slidably positioned relative to the support surface. A priming apparatus and a print press are also disclosed.

A printing machine includes a printing roll and an anilox roll or an anilox sleeve for inking a printing forme of the printing roll. The anilox roll or the anilox sleeve is assigned a machine-readable ID. A sensor or a camera detects the ID. A computer retrieves data which is stored in a digital memory in relation to the ID detected from the memory. The computer performs adjustments on the printing machine on the basis of the ID which is read or the retrieved data. A method for adjusting a printing machine is also provided.

A printing machine includes a printing roll and an anilox roll or an anilox sleeve for inking a printing forme of the printing roll. The anilox roll or the anilox sleeve is assigned a machine-readable ID. A sensor or a camera detects the ID. A computer retrieves data which is stored in a digital memory in relation to the ID detected from the memory. The computer performs adjustments on the printing machine on the basis of the ID which is read or the retrieved data. A method for adjusting a printing machine is also provided.

In an example, a rotogravure printer roller is described. The printer roller (300) comprises a contact surface formed from a plurality of adjacent roller sections (302, 304). The roller sections are constructed and arranged to be removably assembled to form the roller.

A roller for a printing unit of a printing press, has a roller outer body, which is mounted on a roller inner body, so as to be movable axially in a reciprocating manner. For the axial movement of the roller outer body, in at least a first direction, a pneumatic drive is provided. The pneumatic drive has at least one first chamber, which is mounted in the interior of the roller in the manner of a cylinder/piston system between one or more structural elements, that are fixed to the roller outer body, and one or more structural elements that are fixed to the roller inner body. The chamber can be pressurized with compressed air. The parts of the structural elements adjoining the chamber, and that are movable axially relative to one another, form a non-contact seal between themselves on their mutually facing sides.

A roller for a printing unit of a printing press, has a roller outer body, which is mounted on a roller inner body, so as to be movable axially in a reciprocating manner. For the axial movement of the roller outer body, in at least a first direction, a pneumatic drive is provided. The pneumatic drive has at least one first chamber, which is mounted in the interior of the roller in the manner of a cylinder/piston system between one or more structural elements, that are fixed to the roller outer body, and one or more structural elements that are fixed to the roller inner body. The chamber can be pressurized with compressed air. The parts of the structural elements adjoining the chamber, and that are movable axially relative to one another, form a non-contact seal between themselves on their mutually facing sides.

The invention relates to a device having a two-component drip edge. One side of the drip edge is formed by a material having an attractive behavior with respect to a liquid and the opposite side of the drip edge is formed from a material having a repulsive behavior with respect to the liquid. This design yields an improved drip effect.