Development device and image forming apparatus

An image forming apparatus, comprising:

• a latent image carrier configured to carry an electrostatic latent image;
• and
• a development device configured to develop the electrostatic latent image carried by the latent image carrier,
• the development device, including:
• a development member configured to develop the electrostatic latent image formed on the latent image carrier with a developer including toner and a carrier to make the electrostatic latent image visible;
• a circulation member configured to receive the developer discharged from the development member in an outward path of the circulation member and convey the developer back to the development member in a return path of the circulation member;
• and
• a container provided between the outward path and the return path to store the developer, the container including a first agitator and a second agitator that are provided inside the container and are configured to agitate and mix the developer and fresh toner supplied to the container, the first agitator including a rotatable agitation member in which one or more holes are formed through which the developer passes and that is configured to rotate at a different speed than the second agitator around an outer circumference of the second agitator.