Development device, and image forming apparatus and process cartridge incorporating same

摘要

A development device includes a developer bearer to carry by rotation developer to a development range facing a latent image bearer and a developer regulator to adjust an amount of developer transported to the development range by the developer bearer. The developer bearer includes a developer carrying range having surface unevenness; and a surface of the developer bearer is coated with a coating material including a resin material and particles to roughen the surface.

主权项

1. A development device comprising:
a developer bearer to carry by rotation developer to a development range facing a latent image bearer, the developer bearer including a developer carrying range having surface unevenness; and a developer regulator to adjust an amount of developer transported to the development range by the developer bearer, wherein a corner portion on a second end side of the developer regulator contacts the surface of the developer bearer, wherein a portion of the developer regulator that contacts the developer bearer is constructed of metal, wherein a surface of the developer bearer is coated with a coating material including a resin material and particles to roughen the surface; wherein multiple projections and multiple recesses are formed in the surface of the developer bearer, forming the surface unevenness, and the developer regulator comprises a blade having a first end held by a regulator holder and a second end that contacts the multiple projections formed in the surface of the developer bearer.