US 12,032,323 B2
Image forming apparatus and process cartridge
Keisuke Kusano, Kanagawa (JP); Wataru Yamada, Kanagawa (JP); Masahiro Iwasaki, Kanagawa (JP); Akihiro Kawasaki, Kanagawa (JP); and Yuki Oyamada, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Mar. 9, 2023, as Appl. No. 18/180,902.
Claims priority of application No. 2022-153017 (JP), filed on Sep. 26, 2022.
Prior Publication US 2024/0118653 A1, Apr. 11, 2024
Int. Cl. G03G 21/08 (2006.01); G03G 15/00 (2006.01); G03G 15/01 (2006.01); G03G 15/02 (2006.01); G03G 15/04 (2006.01); G03G 15/16 (2006.01); G03G 21/00 (2006.01); G03G 21/06 (2006.01); G03G 9/087 (2006.01)
CPC G03G 21/08 (2013.01) [G03G 15/75 (2013.01); G03G 15/751 (2013.01); G03G 15/752 (2013.01); G03G 15/754 (2013.01); G03G 21/0094 (2013.01); G03G 21/06 (2013.01); G03G 9/0872 (2013.01); G03G 15/0121 (2013.01); G03G 15/0233 (2013.01); G03G 15/04036 (2013.01); G03G 15/1685 (2013.01); G03G 15/6597 (2013.01); G03G 2215/00957 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
an electrophotographic photoreceptor that includes a conductive substrate and a photosensitive layer disposed on the conductive substrate, the electrophotographic photoreceptor having an outermost surface layer that contains a binder resin, a charge-transporting material, and a fluorine-containing resin particle, the fluorine-containing resin particle containing 0 or more and 30 or less carboxy groups per 106 carbon atoms;
a charging device that charges the electrophotographic photoreceptor;
an electrostatic latent image forming device that forms an electrostatic latent image on the electrophotographic photoreceptor that is charged;
a developing device that houses a developer containing a toner and that develops, with the developer, the electrostatic latent image formed on the electrophotographic photoreceptor into a toner image;
a transfer device that transfers the toner image onto a transfer-receiving medium; and
an optical discharging device that, after the toner image is transferred onto the transfer-receiving medium and before the electrophotographic photoreceptor is charged, irradiates the electrophotographic photoreceptor with discharging light with a light quantity of 1.0 μW or more and 50.0 μW or less to perform discharging.