a developing device for developing a latent image on an image carrying member includes a container member containing toner ; a development roller provided at a development opening of the container member ; a first toner conveying member disposed so as to face the development roller , wherein a direction of rotation of said first developer conveying member is opposite to a direction of rotation of said developer carrying member ; and a second toner conveying member provided further downstream from the first conveying member as viewed in the direction of rotation of the development roller and having a higher conveying capability than the first toner conveying member . the toner circulation capability around the development roller is very high .