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US 8,786,290 B2Granted
Corona effluent sensing device
AssigneeXerox Corporation
InventorRichard Klenkler
Life of this patent
Estimating the term…
Abstract
The presently disclosed embodiments are directed to the detection and monitoring of corona effluent. The present embodiments pertain to a corona sensing device that employs a film of organic charge transporting material, as the active component in a corona effluent sensing device, that is disposed onto a patterned electrode bearing support member.
Claims20
A corona sensing system, comprising:
- a scorotron including a corona wire and an insulating mount, where the scorotron is energized by applying a current to the corona wire and corona effluents are generated;
- a corona sensing device, including:
- a support member;
- a first electrode and a second electrode placed on the support member;
- a semiconducting film disposed on the support member and the first and second electrodes, the semiconducting film comprising an organic charge transporting material;
- and
- a first wire lead and a second wire lead allowing for connection of the first electrode and the second electrode to an external resistivity monitoring circuit;
- and
- an external resistivity monitoring circuit comprising an ammeter and a constant voltage power supply for detecting corona effluents generated by the applying of the current to the corona wire, the corona effluents detected by monitoring for any decrease in resistivity through the semiconducting film with the external resistivity monitoring circuit as indicating the presence of corona effluents.
6 more elements
A corona sensing system, comprising:
- a scorotron including a corona wire and an insulating mount, where the scorotron is energized by applying a current to the corona wire and generates corona effluents;
- and
- a corona sensing device, including
- a support member;
- a first electrode and a second electrode placed on the support member;
- a semiconducting film disposed on the support member and the first and second electrodes, the semiconducting film comprising an organic charge transporting material comprising from about 20% to about 80% N,N′-diphenyl-N,N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine and from about 20% to about 80% polycarbonate;
- and
- a first wire lead and a second wire lead allowing for connection of the first electrode and the second electrode to an external resistivity monitoring circuit, wherein a measurement of a decrease in resistivity indicates the presence of corona effluents.
5 more elements
A method for detecting and monitoring corona effluents, comprising:
- providing a scorotron including a corona wire and an insulating mount;
- applying a current to a corona wire to energize the scorotron and generate corona effluents;
- providing a corona sensing device including
- a support member;
- a first electrode and a second electrode placed on the support member;
- a semiconducting film disposed on the support member and the first and second electrodes, the semiconducting film comprising an organic charge transporting material;
- and
- a first wire lead and a second wire lead allowing for connection of the first electrode and the second electrode to an external monitoring circuit;
- and
- monitoring for any decrease in resistivity through the semiconducting film with the external monitoring circuit, wherein a measurement of a decrease in resistivity indicates the presence of corona effluents.
7 more elements
Dependencies are inferred from the claim text.