| 摘要 |
In the image forming apparatus, startup process is executed upon power-on, prior to printing or at other proper timing to thereby adjust such that a deflector such as an oscillation mirror (65) makes a light beam scan favorably. To be more specific, the following startup process is performed. Amplitude ensuring process is executed before turning on a laser source (62), and the amplitude value of the deflector is set equal to or larger than a minimum amplitude value. The laser source is then turned on. As a result, at the time of turning on of the laser source, the light beam already scans to move past at least horizontal synchronization sensors (60A,60B). This prevents concentration of the light beam upon a certain portion of a photosensitive member (2). <IMAGE> |
