Displacing a substance
AssigneeHewlett-Packard Development Company, L.P.
InventorsGil Fisher, Alex Feygelman, Mordechai Arenson
Life of this patent
Estimating the term…
Abstract
According to some examples a substance displacement apparatus may comprise a gas ejection aperture and a deflector arm. The gas ejection aperture may be to direct gas towards a roller having a surface on which a substance is disposed. The deflector arm may be moveable between a first position in which gas is directed away from a target area on the surface of the roller, and a second position in which gas is directed towards the target area on the surface of the roller, thereby to displace at least some of the substance from the surface of the roller within the target area. A method and a print apparatus are also disclosed.
Claims14
A substance displacement apparatus comprising:
- a gas ejection aperture to direct gas towards a roller having a surface on which a substance is disposed;
- a deflector arm moveable between a first position in which gas is directed away from a target area on the surface of the roller, and a second position in which gas is directed towards the target area on the surface of the roller, thereby to displace at least some of the substance from the surface of the roller within the target area;
- and
- a gas guide element positioned relative to the gas ejection aperture to guide gas which is directed away from the target area away from the roller.
A substance displacement method comprising:
- directing gas from a gas outlet towards a surface of a roller, the surface having a substance disposed thereon;
- selectively moving a deflector arm between a first deflection configuration in which gas is directed away from a defined region on the surface of the roller, and a second deflection configuration in which gas is directed towards the defined region on the surface of the roller, thereby to displace some or all of the substance from the surface of the roller within the defined region;
- and
- guiding gas which is directed away from the target area away from the roller utilizing a gas guide element.
A print apparatus comprising:
- a roller having a surface on which to receive a substance to be transferred to a printable medium;
- a gas delivery unit for directing gas towards the roller, the gas delivery unit comprising:
- a gas outlet;
- a gas deflector moveable between a first position in which gas is directed from the gas outlet away from a target area on the roller surface, and a second position in which gas is directed from the gas outlet towards the target area on the roller surface, thereby to displace at least some of the substance from the target area of the roller surface;
- and
- a gas guide element positioned relative to the gas outlet to guide gas which is directed away from the target area away from the roller.
Dependencies are inferred from the claim text.