A developer unit for a wet-type color image forming apparatus. The
developer unit includes a developer bath filled with a liquid developing
agent to a predetermined depth, and a developing roller that develops an
electrostatic latent image formed on a photoreceptor to correspond to an
original image by supplying the liquid developing agent while being
partially immersed in the liquid developing agent. The developer unit
further includes a cleaning roller that cleans the surface of the
developing roller, a depositing roller that deposits the liquid developing
agent onto the cleaned surface of the developing roller, and a metering
roller that adjusts the thickness and concentration of the liquid
developing agent deposited onto the surface of the developing roller by
the depositing roller to suitable levels to develop the electrostatic
latent image. The developer unit also includes a developer cartridge that
supplies the liquid developing agent into the developer bath.
