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US 11,150,572 B2Granted
Imaging and printing system
AssigneeHP Indigo B.V.
InventorsRon Emanueli, Michael Plotkin, Haim Livne, Napoleon J. Leoni
Life of this patent
Estimating the term…
Abstract
According to one example, there is provided an imaging system that comprises a housing, a rotatable polygon comprising multiple mirrored facets located in the housing, a laser to generate a laser beam to shine onto the polygon mirror and to reflect onto a target, and wherein, in use, the density of gas within the housing is such that turbulence-related optical distortion within the housing is not greater than a predetermined limit.
Claims11
An imaging system, comprising:
- a housing;
- a rotatable polygon comprising multiple mirrored facets located in the housing;
- a laser to generate a laser beam to shine onto the polygon mirror and to reflect onto a target;
- wherein, in use, the density of gas within the housing is such that turbulence-related optical distortion within the housing is not greater than a predetermined limit,
- wherein the housing is hermetic or substantially hermetic, and wherein the imaging system further comprises:
- a pump connected to the housing through a conduit;
- and
- a pump controller to control the pump to remove air from the housing to reduce the air pressure within the housing to a predetermined level.
5 more elements
An electrostatic printing system, comprising:
- an imaging system housing;
- a rotatable polygon comprising multiple mirrored facets located in the housing;
- a laser to generate a laser beam to shine onto the polygon mirror and to reflect onto a photoconductor member;
- wherein the density of gas within the housing is such that, when the mirror is rotating at high-speed, turbulence-related optical distortion within the housing does not adversely affect the laser beam, and
- wherein the housing is hermetic to a high degree, and the printing system further comprises:
- a pump in fluid communication with gas within the housing;
- and
- a pump controller to control the pump to reduce the pressure within the housing to within a predetermined range.
5 more elements
An electrostatic printing system, comprising:
- an imaging system housing;
- a rotatable polygon comprising multiple mirrored facets located in the housing;
- a laser to generate a laser beam to shine onto the polygon mirror and to reflect onto a photoconductor member;
- wherein the density of gas within the housing is such that, when the mirror is rotating at high-speed, turbulence-related optical distortion within the housing does not adversely affect the laser beam, and
- wherein the housing is hermetic and is filled with a lighter than air gas or gaseous mix.
2 more elements
An imaging system, comprising:
- a sealed housing;
- a rotatable polygon mirror comprising multiple mirrored facets located in the housing;
- a portion of the housing transparent to a laser;
- a laser to generate a laser beam to shine through the transparent portion of the housing onto the polygon mirror and to be scanned by the polygon mirror over a target;
- wherein, in use, a density of gas within the housing is reduced below atmospheric pressure to reduce turbulence-related optical distortion within the housing.
2 more elements
Dependencies are inferred from the claim text.