A processing machine, in particular a printing machine, includes a unit having a storage container. The storage container comprises a roller and a base which delimit the storage chamber for a medium. One or more sliders are arranged along the edge of the base to form, together with the roller, an outlet gap for the medium. In the region of the one or more sliders, pneumatic means are provided to seal the supply chamber with respect to the medium. A method for operating such a processing machine is also disclosed.

An inking system for use in transferring ink to a gravure printing surface in a gravure printing system includes a gravure cylinder r having a printing zone located between first and second recessed bearing contact zones. A radius of the recessed bearing contact zones is less than a radius of the printing zone by at least 0.100 inches. An ink tray includes a floor and first and second end walls. Bearings are mounted outside of the end walls which engage with the first and second bearing contact zones, respectively, thereby positioning the ink tray assembly in a specified position relative to the gravure cylinder. Upper edges of the end walls extend into the recessed bearing contact zones.

A processing machine, in particular a printing machine, includes a unit having a storage container. The storage container comprises a roller and a base which delimit the storage chamber for a medium. One or more sliders are arranged along the edge of the base to form, together with the roller, an outlet gap for the medium. In the region of the one or more sliders, pneumatic means are provided to seal the supply chamber with respect to the medium. A method for operating such a processing machine is also disclosed.

An inking system for use in transferring ink to a gravure printing surface in a gravure printing system includes a gravure cylinder r having a printing zone located between first and second recessed bearing contact zones. A radius of the recessed bearing contact zones is less than a radius of the printing zone by at least 0.100 inches. An ink tray includes a floor and first and second end walls. Bearings are mounted outside of the end walls which engage with the first and second bearing contact zones, respectively, thereby positioning the ink tray assembly in a specified position relative to the gravure cylinder. Upper edges of the end walls extend into the recessed bearing contact zones.

The invention relates to a sealing system, the sealing system comprising two first sealing members (62) which are each disposed at opposite lateral ends (56) of a doctor blade chamber (48), and two second sealing members (64) which are each disposed at opposite lateral ends (60) of the rotatable roller (46), wherein in operational mode, each of the two first sealing members (62) is in rotating contact with each of the two second sealing members (64) such that a leakage of ink at the opposite lateral ends (56) of the doctor blade chamber (48) is prevented.

The invention provides a combination of an ink reservoir and doctor blade assembly (2) and a rotatable cylinder (3) for a printing press, which form a chamber for containing ink, wherein the ink reservoir and doctor blade assembly (2) comprises a scaling assembly (203) for scaling an axial end of the chamber, or sealing a sub-chamber of the chamber from another sub-chamber of the chamber, wherein the sealing assembly (203) comprises a seal (2031) presenting a seal contour (SC) to sealingly engage a circumferential surface of the cylinder (3), and a flexible biasing device (2032) forming one or more cavities (2041-2043), and being arranged to receive a pressurized fluid in the one or more cavities (2041-2043), for biasing the seal (2031) into sealing engagement with the cylinder (3), wherein the combination is arranged according to one or both of the following alternatives (a) and (b): (a): in an axis perpendicular plane, which is perpendicular to the rotational axis of the cylinder (3) and coincides with a cross-section of the biasing device, the biasing device (2032) has a peak (2032P) or a summit (2032S) which is located within an extension (EXTSC) of the seal contour (SC) along a reference plane (RP) which coincides with the rotational axis of the cylinder (3) and which is perpendicular to a seal location plane (SLP) which coincides with the rotational axis of the cylinder (3) and a circumferential mid-point of the seal contour (SC), (b): the biasing device presents one or more surfaces which extend, in the axis perpendicular plane, in parallel with the seal location plane (SLP), and which face at least partly away from the seal location plane (SLP), and/or one or more surfaces which face partly away from the reference plane (RP), and the seal (2031) covers any such surface.