Image forming apparatus

An image forming apparatus comprising:

• a latent image bearer;
• a writing device configured to write a latent image onto the latent image bearer;
• a detection device configured to detect, at a plurality of positions, a density of a toner image obtained through development of the latent image;
• and
• a controller configured to correct a writing intensity of the writing device to correct an uneven density based on detection values of the detection device,
• the controller configured to determine whether each of the detection values of the detection device is pass or fail,
• the controller configured to correct, in response to a determination that a detection value of the detection values is fail, the writing intensity based on another detection value of the detection values determined to be pass at a position different from a position at which the detection value is determined to be fail, instead of correcting the writing intensity based on the detection value determined to be fail.