Patent Number: 6,253,044

Title: Image forming apparatus having blade cleaning device applied thereto, and process cartridge

Abstract: An electrophotographic image forming apparatus includes an electrophotographic photosensitive body for forming electrostatic latent images thereon; a charging device structured with an electrode member in contact with the photosensitive body for forming the latent images on the photosensitive body; a cleaning device having a cleaning blade to rub and remove toner from the surface of the photosensitive body by enabling the leading edge thereof to abut thereupon in a counter to the moving direction of the photosensitive body; a developing device for developing with toner the latent images formed on the photosensitive body; and a surface roughing device arranged within a cleaning area to which the cleaning blade to abuts, outside the developing area of the developing means to carry out development, and further, arranged on the downstream side of the charging device observed in the moving direction of the photosensitive body, but on the upstream side of the cleaning blade to abut upon the photosensitive body for making the surface thereof rough, hence making it possible to prevent the cleaning blade from being turned up along the movement of the photosensitive body when the blade removes unwanted toner from the surface of the photosensitive body.

Inventors: Shoji; Takeo (Shizuoka-ken, JP), Hibi; Takashi (Mishima, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: G03G 15/16 (20060101); G03G 21/00 (20060101); G03G 021/16 (); G03G 021/00 ()

Expiration Date: 06/26/2018