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US 11,712,883 B2Granted
Rotogravure printing
AssigneeHP Indigo B.V.
InventorsLior Joseph, Regev Jekobson, Erez Kopel
Life of this patent
Estimating the term…
Abstract
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.
Claims14
A rotogravure printer roller comprising:
- a plurality of roller sections that each include a first face that includes a plurality of protrusions and a second face that includes a plurality of recesses;
- a contact surface formed from the plurality of roller sections, wherein the plurality of roller sections are removably assembled to form the rotogravure printer roller when the plurality of protrusions from a first section are positioned within the plurality of recesses of a second section that is adjacent to the first section;
- and
- an end plate that includes an outer face with a shaft portion and an inner face with alignment features arranged to connect with an alignment feature of an outer roller section of the rotogravure printer roller, wherein the shaft portion of the end plate does not extend to the inner face of the end plate.
1 more element
A modular section for a rotogravure printer roller, the modular section comprising:
- a first face that includes a plurality of protrusions and a second face that includes a plurality of recesses, the plurality of protrusions integrally formed on the first face and the second face excluding protrusions;
- a peripheral contact surface to engage a print medium, the plurality of protrusions and the plurality of recesses arranged along inner surfaces of the first face and the second face spaced from the peripheral contact surface;
- and
- an alignment feature having the plurality of protrusions to align the modular section with an adjacent modular section of the rotogravure printer roller when the plurality of protrusions from the modular section are positioned within a plurality of recesses of the adjacent modular section, wherein the plurality of recesses on the second face connects to a corresponding alignment feature of another adjacent modular section, which is coupled to an inner surface of an end plate that includes a shaft portion on an outer surface, wherein the shaft portion of the end plate does not extend to the inner surface of the end plate.
1 more element
A method of operating a rotogravure printer, the method comprising:
- providing a rotogravure printer roller by arranging an engraved roller section that includes a first face with a plurality of protrusions and an unengraved roller section that includes a second face that includes a plurality of recesses such that the plurality of protrusions of the first face are positioned within the plurality of recesses of the second face;
- providing a first end plate on a first end of the rotogravure printer roller that includes a first shaft portion to engage with a drive mechanism, wherein the first shaft portion of the first end plate does not extend to an inner face of the first end plate;
- and
- providing a second end plate on the second end of the rotogravure printer roller that includes a second shaft portion to engage with the drive mechanism, wherein the second shaft portion of the second end plate does not extend to an inner face of the second end plate.
1 more element
Dependencies are inferred from the claim text.