Process cartridge and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsKoji An, Kazunari Hagiwara, Takuya Kitamura, Takashi Hiramatsu, Jun Miura
Life of this patent
Estimating the term…
Abstract
A process cartridge includes a developer carrier including a dielectric portion and a conductive portion on a surface thereof, a regulation member, and an image carrier disposed so as to come into contact with the developer carrier. The developer carrier and the image carrier are rotationally driven such that a surface of the developer carrier and a surface of the image carrier move at linear velocities different from each other at a contact portion, and the developer remaining on the image carrier after the developer image is transferred from the image carrier, is collected by the developer carrier at the contact portion.
Claims15
A process cartridge comprising:
- a developer carrier configured to carry developer on a surface thereof, the developer carrier including a conductive portion having electrical conductivity and a dielectric portion higher in electric resistance than the conductive portion;
- a regulation member configured to regulate a thickness of the developer carried by the developer carrier;
- and
- an image carrier configured to come into contact with the developer carrier and to carry a developer image formed of the developer,
- wherein the developer carrier and the image carrier are configured to be rotationally driven such that a surface of the developer carrier at a contact portion contacting the image carrier and a surface of the image carrier at the contact portion move at different linear velocities, and
- wherein developer remaining on the image carrier after the developer image is transferred from the image carrier is collected by the developer carrier at the contact portion.
Dependencies are inferred from the claim text.