Patent ID: 7672617

Claim:
An imaging apparatus comprising: an image carrier being configured to carry an electrostatic latent image; an exposure unit being configured to irradiate said image carrier with light and to form the electrostatic latent image; a color developing part being configured to develop said electrostatic latent image on said image carrier by using color toners; a black developing part being configured to develop said electrostatic latent image on said image carrier by using a black toner; a rotator being configured to have said color developing part and black developing part disposed on an external periphery thereof, and being configured to move said color developing part or black developing part by rotation to a developing position to face said image carrier in accordance with the color being developed; a color toner replenishing part being configured to move from a retracted position arranged to allow light emitted from said exposure unit to irradiate said image carrier obstructed, to a replenishing position arranged to obstruct light emitted from said exposure unit, and being configured to replenish said color toners of said color developing part in said replenishing position; and a black toner replenishing part at an axial end of said rotator and being arranged to have retracted and replenishing positions allowing light emitted from said exposure unit to irradiate said image carrier obstructed, and being configured to replenish black toner to said black developing part in a replenishing position.