Patent ID: 7773933

Claim:
An image forming apparatus, which includes a latent image carrier and comprises a charging device, a developing device, a primary transferring part for transferring the toner to an intermediate transfer body, a charge eliminating device, and a cleaning device comprising a rotatable member and a toner receiving member for preventing excess charge in a toner, which are arranged in sequence around the latent image carrier, wherein: the latent image carrier is located below the intermediate transfer body, for transferring the toner carried on a surface thereof from downward to the intermediate transfer body, the cleaning device having the rotatable member for cleaning the surface of the latent image carrier, a cleaning blade which is located below the rotatable member for scraping out a toner on the latent image carrier body surface and the toner receiving member for storing the toner scraped out from the latent image carrier body, the toner receiving member is a gutter member provided along the circumferential surface of the rotatable member for cleaning, which is storing the scraped toner in the gap in the vicinity of the circumferential surface of the cleaning rotatable member and carrying to a toner recovery part, wherein the toner contains an additive agent comprising a titanium oxide, the specific resistance of the titanium oxide is a value in a range of 1×10 0 to 1×10 2 Ω·cm, and the addition amount of the titanium oxide is a value in a range of 0.1 to 5 parts by weight with respect to 100 parts by weight of the toner particles, wherein the fluorescence X ray intensity of the titanium oxide added to the toner before use is X 1 , and the fluorescence X ray intensity of the titanium oxide added to the toner within the cleaning device is X 2 , and X 1 and X 2 satisfy the following relationship formula (1): X 2 /X 1≧1.2 (1) and wherein the additive agent further comprises a silica, and wherein the addition amount of the silica is a value in a range of 0.5 to 15.0 parts by weight with respect to 100 parts by weight of the toner particles, and the fluorescence X ray intensity of the silica added to the toner within the cleaning device is X 3 and X 3 and X 2 satisfy the following relationship formula (2): X 3 /X 2≦20 (2).