Two-component developer
AssigneeKYOCERA Document Solutions Inc.
InventorNoriaki Sakamoto
Life of this patent
Estimating the term…
Abstract
Two-component developer includes positively chargeable toner and a carrier. The carrier is formed of a carrier core and a coating layer that covers the carrier core. The coating layer includes one or more types of fluorine-containing resin selected from the group consisting of fluorine containing polyimide resin and fluorine containing polyamide-imide resin. The positively chargeable toner includes binder resin and a charge control agent. A content of the charge control agent is 1.0% by mass or higher and 5.0% by mass or lower relative to a mass of the toner.
Claims5
Two-component developer comprising positively chargeable toner and a carrier, wherein
- the carrier is formed of a carrier core and a coating layer that covers the carrier core,
- the coating layer includes fluorine containing polyamide-imide resin,
- the fluorine containing polyamide-imide resin is a condensate of tricarboxylic acid anhydride including at least one type of fluorine containing monomer and diamine including at least one type of fluorine containing monomer,
- the positively chargeable toner includes binder resin and a charge control agent, and
- a content of the charge control agent is 1.0% by mass or higher and 5.0% by mass or lower relative to a mass of the toner.
Dependencies are inferred from the claim text.