Patent ID: 8385768

Claim:
An image forming apparatus comprising: a photo conductor; a charging device configured to charge a surface of the photo conductor; an exposure device configured to expose the charged surface of the photo conductor and to form an electrostatic image thereon; a developing device configured to attach toner to the electrostatic image and to develop the electrostatic image as a toner image; a temperature measuring device configured to measure temperatures at a first location and a second location different from the first location in a longitudinal direction of the photo conductor, and capable of measuring the temperature of or near the surface of the photo conductor; and a control device configured to calculate a temperature at a third location between the first and second location based on the measured temperatures at the first location and the second location, and to control an exposure condition for exposure performed by the exposure device in accordance with image information, the control device being operable to change the exposure condition for exposure at the third location based on the calculated temperature at the third location.