A system for printing 7 or more inks on a substrate is disclosed. The system can include: 6 or less rotating rolls disposed in operative relationship with a substrate, wherein each of the rotating rolls can comprise a vascular network configured for transporting at least one of the 7 or more inks in a predetermined path from an interior region to an exterior surface of the rotating roll. The vascular network can have at least one main artery, at least one capillary and a plurality of fluid exits on the exterior surface. At least one capillary is attached to a main artery and is in fluid communication with at least two fluid exits through a substantially radial fluid path to form a tree.

A system for printing 7 or more inks on a substrate is disclosed. The system can include: 6 or less rotating rolls disposed in operative relationship with a substrate, wherein each of the rotating rolls can comprise a vascular network configured for transporting at least one of the 7 or more inks in a predetermined path from an interior region to an exterior surface of the rotating roll. The vascular network can have at least one main artery, at least one capillary and a plurality of fluid exits on the exterior surface. At least one capillary is attached to a main artery and is in fluid communication with at least two fluid exits through a substantially radial fluid path to form a tree.

A method for printing 7 or more inks on a substrate. The method can include the steps of: providing a substrate; providing 7 or more inks; and providing a print system, the print system comprising 6 or less rotating rolls. Each of the 6 or less rotating rolls can be disposed in an operative relationship to transport at least one of the 7 or more inks to a vascular network in one of 6 or less rotating rolls. The method includes contacting the substrate with the at least one of the 7 or more inks.

A method for printing 7 or more inks on a substrate. The method can include the steps of: providing a substrate; providing 7 or more inks; and providing a print system, the print system comprising 6 or less rotating rolls. Each of the 6 or less rotating rolls can be disposed in an operative relationship to transport at least one of the 7 or more inks to a vascular network in one of 6 or less rotating rolls. The method includes contacting the substrate with the at least one of the 7 or more inks.

A device (3000) for loading fluid into nozzle(s) of a nozzle-bearing body (3070) includes a first member (3010), having a first surface (3016), and a second member (3020) protruding from the first member (3010). The second member (3020) has second and third surfaces (3028, 3026), the second surface (3028) extending from the first surface (3016) at an angle. The first surface (3016) substantially complements the shape of the nozzle-bearing body's surface (3070). The device (3000) has a recess (3023) defined therein at least in part by the first and second surfaces (3016, 3028). When the device (3000) is placed into a working configuration with the nozzle-bearing body (3070), a tangent to the third surface (3026), in a region of the third surface (3026) proximate to where the second surface (3028) meets the third surface (3026), is substantially parallel to a tangent to the first surface (3016), in a region of the first surface (3016) where the first surface (3016) meets the second surface (3028), wherein, the recess (3023) forms a pocket for receiving the fluid.

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 system for depositing a fluid on a substrate is disclosed. The system can include a sleeve having a sleeve exit and an inner region and a rotating roll disposed within the inner region. A vascular network can be disposed within the rotating roll, the vascular network being configured for transporting the fluid in predetermined paths from the interior region to the exterior surface through a substantially radial path, the substantially radial path ending at an exit point of a fluid exit, wherein the exit point is associated with a sleeve exit.

A system for depositing a fluid on a substrate is disclosed. The system can include a sleeve having a sleeve exit and an inner region and a rotating roll disposed within the inner region. A vascular network can be disposed within the rotating roll, the vascular network being configured for transporting the fluid in predetermined paths from the interior region to the exterior surface through a substantially radial path, the substantially radial path ending at an exit point of a fluid exit, wherein the exit point is associated with a sleeve exit.

A system for dosing one or more fluids on a substrate, the system comprising a rotating roll. The rotating roll has a central longitudinal axis, wherein the rotating roll rotates about the central longitudinal axis; an exterior surface defining an interior region and substantially surrounding the central longitudinal axis; and a vascular network configured for transporting the one or more fluids in a predetermined path from the interior region to the exterior surface of the rotating roll.