Patent ID: 7400338

Claim:
An image forming apparatus comprising: a photosensitive body; an optical scanning unit configured to deflect and scan a light on the photosensitive body to form an electrostatic latent image on a surface of the photosensitive body, the optical scanning unit comprising: a light source that emits the light; a deflection section that deflects the emitted light; a driving section that drives the deflection section; and a first temperature detecting section that detects a temperature of the driving section or a temperature in vicinity of the driving section; a developing section that develops the electrostatic latent image by depositing a developer on the electrostatic latent image formed on the surface of the photosensitive body by the optical scanning unit; a transfer section that transfers the developer deposited on the surface of the photosensitive body by the developing section to a recording medium; a controller configured to change a drive speed of the driving section based on the temperature detected by the first temperature detecting section; and a second temperature detecting section that detects an atmospheric temperature of the image forming apparatus, the second temperature detecting section being disposed in the image forming apparatus, wherein the controller makes no control of changing the drive speed of the driving section when the atmospheric temperature detected by the second temperature detecting section is lower than a predetermined atmospheric temperature.