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US 2009/0244141 A1Published application
Orifice health detection device
AssigneeHewlett-Packard Development Company, L.P.
InventorsAlexander Govyadinov, Vanessa Verzwyvelt, Prodpran Suetrong, Jeffrey T. Hendricks
Life of this patent
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Abstract
An orifice health detection device includes a fixed array of ink ejecting orifices, the ink ejecting orifices configured to eject at least one ink drop, a light source that produces a light beam configured to scatter light from the at least one ejected ink drop, and a light detector configured to detect light scattered from the at least one ejected ink drop.
Claims19
An orifice health detection device, comprising:
- a page wide array of ink ejecting orifices, each of said ink ejecting orifices configured to eject at least one ink drop;
- a light source that produces a light beam configured to scatter light from said at least one ejected ink drop;
- and
- a light detector configured to detect light scattered from said at least one ejected ink drop.
1 more element
A method of detecting print orifice health, comprising:
- projecting a light beam adjacent to a page wide array of ink ejecting orifices in a printing device;
- ejecting at least one ink drop from said page wide array and through said light beam;
- and
- detecting light scattered from said at least one ejected ink drop.
1 more element
A method of manufacturing a drop detection device, comprising:
- providing a page wide array of ink ejecting orifices, said ink ejecting orifices configured to eject at least one ink drop;
- positioning a light source to produce a light beam configured to scatter light from said at least one ejected ink drop;
- and
- positioning a light detector to detect light scattered from said at least one ejected ink drop.
1 more element
Dependencies are inferred from the claim text.