Conductive coatings for corona generating devices
AssigneeXerox Corporation
InventorStephan V. Drappel
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Abstract
Conductive coatings usable for coating various elements of corona generating devices and method of forming such coatings are provided. The coatings include graphite and at least one transition metal oxide catalyst. When the conductive coatings are employed in elements of corona generating devices and the devices are activated, the conductivity of the elements is maintained in a manner that preserves the ability of a photoreceptor in an image forming device to retain an image charge in a fashion sufficient to allow subsequent development with toner. The coatings also function to scavenge ozone and neutralize nitrogen oxides formed during operation of corona generating devices. Corona generating devices including elements having such coatings are also provided.
Claims18
A conductive coating, formed from an aqueous medium, and coating an element of a corona generating device in a xerographic system, the coating consisting essentially of graphite, at least one transition metal oxide catalyst, and a humidity tolerance-enhancing agent comprising less than 10 weight percent of the aqueous medium.
A conductive coating that coats an element of a corona generating device in a xerographic system formed by:
- combining an aqueous graphite dispersion, at least one transition metal oxide catalyst, and a humidity tolerance-enhancing agent comprising less than 10 weight percent of a resultant aqueous medium;
- applying the aqueous medium to a substrate;
- and
- driving water from the aqueous medium to form the coating.
A method of forming a conductive coating that coats an element of a corona generating device in a xerographic system comprising:
- combining an aqueous graphite dispersion, at least one transition metal oxide catalyst, and a humidity tolerance-enhancing agent comprising less than 10 weight percent of a resultant aqueous medium;
- applying the aqueous medium to a substrate;
- and
- driving water from the aqueous medium.
Dependencies are inferred from the claim text.