Patent ID: 7515841

Claim:
An image forming apparatus comprising: a photosensitive member; a laser scanner that scans the photosensitive member with laser beam in accordance with image information, the laser scanner having a motor to which a rotating mirror that deflects the laser beam is attached; a transferring unit that transfers a toner image formed on the photosensitive member on a recording medium at a transferring position; a fixing unit that heats and fixes the toner image transferred on the recording medium; and a conveyance controller that controls conveyance of the recording medium, wherein the conveyance controller determines a start timing for conveying the recording medium to the transferring position in accordance with a warm-up state of the fixing unit, a voltage state of a power supply, and an environmental temperature, at a time when the toner image is started to be formed on the photosensitive member, wherein as a number of condition disadvantageous for fixability, among three conditions including the warm-up state of the fixing unit, the voltage state of the power supply, and the environmental temperature, increases, the conveyance controller is configured to increase delay of the start timing for conveying the recording medium, and wherein the conveyance controller starts conveying the recording medium based on a detected temperature detected by a detecting element that detects a temperature of the fixing unit if there is at least one condition disadvantageous for the fixability among the three conditions, or starts conveying the recording medium when a predetermined time elapses after a print signal is input if there is no condition disadvantageous for the fixability.