18816050. IMAGE FORMING APPARATUS (Canon Kabushiki Kaisha)

IMAGE FORMING APPARATUS

Organization Name

Canon Kabushiki Kaisha

Inventor(s)

HIROKI Tanaka of Kanagawa JP

IMAGE FORMING APPARATUS

This abstract first appeared for US patent application 18816050 titled 'IMAGE FORMING APPARATUS

Original Abstract Submitted

An image forming apparatus includes a rotatable photosensitive member and a charging brush. The charging brush forms a charging portion in contact with a surface of the photosensitive member and charges the surface of the photosensitive member. The charging brush is provided with brush fiber including a first type of fiber which is crimped and a second type of fiber which is non-crimped. A ratio of the first type of fiber in the brush fiber in a first portion of the charging brush in a moving direction of the surface of the photosensitive member in the charging portion is higher than the ratio of the first type of fiber in the brush fiber in a second portion of the charging brush positioned further downstream than the first portion in the moving direction.