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US 2022/0109079 A1Published application
Photodiode structured photosensitive imaging surfaces, methods and apparatus
AssigneeHewlett-Packard Development Company, L.P.
InventorRoy Kaner
Life of this patent
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Abstract
In an example, a photosensitive imaging surface is provided by an extended photodiode structure.
Claims15
A photosensitive imaging surface comprising:
- a plurality of layers of semiconductor material forming an extended photodiode structure;
- and,
- barriers formed in one layer of the plurality of layers that act to block optical radiation transmission and charge transfer through the one layer.
A method comprising:
- applying an electric field to a photosensitive imaging device to charge a surface of the device with charge originating within a photodiode structure on which the surface is formed;
- and,
- preventing lateral movement of charge through the surface with barriers formed in the surface.
A printing apparatus comprising:
- a photosensitive imaging surface provided by an extended photodiode structure;
- a charging element to apply an electric field to cause movement of charge towards a face of the photosensitive imaging surface;
- and,
- barriers formed in the extended photodiode structure to prevent lateral movement of charge within the photosensitive imaging surface.
1 more element
Dependencies are inferred from the claim text.