Patent ID: 7050080
Filing Date: 2006-05-23
Classification: G06K,H04N

Abstract:
1. An image forming apparatus comprising: a semiconductor laser; an optical unit which scans a rotational photo conductor by a laser light output by said semiconductor laser; and a photodetector which detects the laser light output by said semiconductor laser at a predetermined position, wherein a latent image is formed by scanning said rotational photo conductor based on the laser light detected by the photodetector, said image forming apparatus further comprising: a high-frequency clock generation circuit; a generator configured to generate load data and a phase set signal; a first frequency divider which generates and outputs an image clock which is synchronized with an output of said photodetector by dividing a clock output from the high-frequency clock generation circuit by a frequency dividing number selected based on the load data loaded by the generator; and an image clock phase changing circuit which changes a phase of the image clock based on the phase set signal.