Charging device including charging roller and cleaning roller

A process cartridge configured to be detachably mounted on a main body of an image forming apparatus, the process cartridge comprising:

• an image carrier configured to be integrally supported on the main body of the image forming apparatus;
• and
• a charging device configured to be integrally supported on the main body of the image forming apparatus, the charging device including
• a charging roller configured to charge the image carrier,
• a cleaning roller configured to clean the charging roller while making contact with a surface of the charging roller,
• a bearing member including a first portion configured to rotatably support a rotational shaft of the charging roller and a second portion configured to rotatably support a rotational shaft of the cleaning roller;
• and
• an elastic member provided outside of the second portion of the bearing member with respect to an axial direction of the rotational shaft of the cleaning roller such that the charging roller makes contact with the image carrier when the first portion of the bearing member is pressed by the elastic member.

An image forming apparatus, comprising:

• an image carrier;
• and
• a charging device configured to charge the image carrier, the charging device including
• a charging roller configured to charge the image carrier,
• a cleaning roller configured to clean the charging roller while making contact with a surface of the charging roller,
• a bearing member including a first portion configured to rotatably support a rotational shaft of the charging roller and a second portion configured to rotatably support a rotational shaft of the cleaning roller;
• and
• an elastic member provided outside of the second portion of the bearing member with respect to an axial direction of the rotational shaft of the cleaning roller such that the charging roller makes contact with the image carrier when the first portion of the bearing member is pressed by the elastic member.