Image forming apparatus

An apparatus for forming an image, comprising:

• an image bearing member;
• a charging device to charge said image bearing member;
• an exposing device to expose said image bearing member charged by said charging device so as to form a latent image on said image bearing member;
• a developing device to develop said latent image so as to form a toner image on said image bearing member;
• a transferring device to transfer said toner image onto an intermediate transfer member at a transferring section by applying a transfer bias voltage outputted by a power source;
• an image stabilization controlling section to conduct an image stabilization controlling operation for keeping a density of said toner image transferred onto said intermediate transfer member within a predetermined range;
• a transfer output controlling section to conduct a transfer output controlling operation for controlling a transfer output based on a density of a toner patch image formed on said intermediate transfer member;
• and
• an overall controlling section to control both said image stabilization controlling section and said transfer output controlling section, in such a manner that said image stabilization controlling operation is conducted preceding to said transfer output controlling operation.