초록 ▼

A toner bearing body unit is constituted as one assembled unit including a toner bearing body for holding toners supplied from a toner supply roller of a housing main body at an outer peripheral surface thereof, a toner layer thickness regulating member for electrically charging the toners by applyi

A toner bearing body unit is constituted as one assembled unit including a toner bearing body for holding toners supplied from a toner supply roller of a housing main body at an outer peripheral surface thereof, a toner layer thickness regulating member for electrically charging the toners by applying pressure toward the outer peripheral surface of the toner bearing body and for forming a toner thin layer on the toner bearing body, and a holding member for holding the toner bearing body and the toner layer thickness regulating member. The toner bearing body unit is constituted to be directly attachable to and detachable from an outer side of the housing main body of a developing apparatus. Accordingly, an uniform toner thin layer having a predetermined thickness can be formed stably on the toner bearing body during a long period of use, and the developing apparatus reconstructed so that replacement of the components thereof can be carried out easily. Further a developing apparatus having a good recycling performance can be provided.

대표청구항 ▼

[ What is claimed is:] [1.] A developing apparatus having a housing main body, a toner supply roller for supplying toner in the form of fine coloring powder bodies accommodated in said housing main body, and an opening portion provided in said housing main body; anda toner bearing body unit for form

[ What is claimed is:] [1.] A developing apparatus having a housing main body, a toner supply roller for supplying toner in the form of fine coloring powder bodies accommodated in said housing main body, and an opening portion provided in said housing main body; anda toner bearing body unit for forming said toner supplied from said toner roller into a toner layer, said toner layer to be applied to a latent image holding means on which an electrostatic latent image is to be developed, wherein said toner bearing body unit is constituted as one body, including:a cylindrical toner bearing body on a support shaft for receiving and holding toner supplied from said toner supply roller on an outer peripheral surface thereof;bearing members slidingly engaging in the opening portion of said housing main body and rotatably supporting said toner bearing body support shaft;a toner layer thickness regulating member for charging said toner by pressing the toner on said outer peripheral surface of said toner bearing body so as to form a toner thin layer on said toner bearing body; anda holding member for holding said toner bearing body and said toner layer thickness regulating member, said holding member being securable to said housing main body.