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US 2016/0096319 A1Published application
System and method for operating a three-dimensional printer to compensate for radial velocity variations
AssigneeXerox Corporation
InventorsPatricia J. Donaldson, Jeffrey J. Folkins
Life of this patent
Estimating the term…
Abstract
A three-dimensional object printer is configured to enable the density of material ejected by at least one printhead onto a rotating platen near its circumferential edge to be approximately the same as the density of the material ejected onto the rotating platen near the center of the platen.
Claims20
A three-dimensional object printer comprising:
- a platen configured to rotate about a center;
- a radial arm that extends from a position proximate the center of the platen to a position proximate a circumferential edge of the platen;
- at least one printhead mounted to the radial arm, the at least one printhead being configured to eject material onto the platen as the platen rotates past the at least one printhead;
- and
- a controller operatively connected to the at least one printhead and the platen, the controller being configured to:
- rotate the platen;
- operate the at least one printhead to eject material onto the platen as the platen rotates past the at least one printhead;
- and
- adjust at least one of an angular velocity of the platen, a velocity of the at least one printhead along the radial arm, and an angle between the at least one printhead and the radial arm to maintain a density of the material ejected onto a portion of the rotating platen nearer a center of the platen constant with a density of the material ejected onto a portion of the rotating platen nearer a circumferential edge of the platen.
6 more elements
A three-dimensional object printer comprising:
- a platen configured to rotate about a center;
- a radial arm that extends from a position over the center of the platen to a position over a circumferential edge of the platen;
- at least one printhead mounted to the radial arm, the at least one printhead being configured to eject material onto the platen as the platen rotates past the at least one printhead, the at least one printhead being further configured with a linear array of inkjets, at least some inkjets in the linear array are separated from one another by a decreasing distance as the linear array of inkjets extends towards the circumferential edge of the platen;
- and
- a controller operatively connected to the at least one printhead and the platen, the controller being configured to:
- rotate the platen;
- and
- operate the at least one printhead to eject material onto the platen as the platen rotates past the at least one printhead.
5 more elements
A method of operating a three-dimensional object printer comprising:
- rotating with a controller a platen about a center of the platen;
- operating with the controller at least one printhead to eject material onto the platen as the platen rotates past the at least one printhead;
- and
- adjusting with the controller at least one of an angular velocity of the platen, a velocity of the at least one printhead along the radial arm, and an angle between the at least one printhead and the radial arm to maintain a density of the material ejected onto a portion of the rotating platen nearer a center of the platen constant with a density of the material ejected onto a portion of the rotating platen nearer a circumferential edge of the platen.
1 more element
Dependencies are inferred from the claim text.