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US 2016/0107442 A1Published application
Printhead structure
AssigneeHewlett-Packard Development Company, L.P.
InventorsMark Sanders Taylor, Craig Olbrich, Byron K. Davis
Life of this patent
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Abstract
In one example, a printhead structure includes: a first layer; an array of openings in the first layer to form printing fluid ejection chambers; a second layer on the first layer; an array of orifices through the second layer, each orifice located adjacent to one of the openings in the first layer; a groove in the first layer spanning substantially a full length of the array of openings; and multiple holes through the second layer to the groove in the first layer.
Claims17
A printhead structure, comprising:
- a first layer;
- an array of openings in the first layer to form printing fluid ejection chambers;
- a second layer on the first layer;
- an array of orifices through the second layer, each orifice located adjacent to one of the openings in the first layer;
- a groove in the first layer spanning substantially a full length of the array of openings;
- and
- multiple holes through the second layer to the groove in the first layer.
4 more elements
A printhead, comprising:
- multiple printing fluid ejectors;
- a fluid chamber near each ejector;
- multiple orifices through which printing fluid may be ejected from the chambers, the orifices formed in an orifice plate that partially defines the chambers;
- and
- a channel in the orifice plate and multiple vents in the orifice plate connected to the channel, the channel configured to interrupt the diffusion of printing fluid away from each chamber into the orifice plate and to channel the printing fluid to the vents through which the fluid may pass from the channel into the atmosphere.
2 more elements
A printhead, comprising:
- a substrate including multiple printing fluid ejectors;
- an orifice layer including multiple orifices each associated with one or more of the ejectors such that printing fluid may be dispensed through the orifices at the urging of the ejectors, the orifice layer affixed to the substrate with a layer of polymer adhesive;
- and
- a vented barrier within the adhesive layer to simultaneously block the spread of printing fluid through the adhesive layer and vent printing fluid from the adhesive layer to the atmosphere.
1 more element
Dependencies are inferred from the claim text.