Patent ID: 6859628

Claim:
An image forming apparatus which includes image forming means for forming a latent image on a photoconductor using a developer of a single color or a plurality of colors, thus forming an image, the apparatus comprising: a temperature detection section that detects a temperature, the temperature detection section being provided near a developing section that supplies the developer of the single color or the plurality of colors; a processor that computes a saturation moisture content from the temperature detected by the temperature detection section; a relative humidity detection section that detects a relative humidity, the relative humidity detection section being provided near the developing section that supplies the developer of the single color or the plurality of colors; the processor computes an environment parameter value from the relative humidity detected by the relative humidity detection section and the saturation moisture content computed by the processor; the processor determines a development contrast potential for each of the colors of the developer, on the basis of the environment parameter value computed by the processor; and the processor controls the image forming means so as to obtain the development contrast potential determined by the processor.