Patent ID: 8471882
Filing Date: 2013-06-25
Classification: G03G,G06K,H04N

Abstract:
1. An image forming apparatus which forms an image by forming an electrostatic latent image on a photosensitive member with a laser beam, developing the electrostatic latent image with a developer, and transferring an image developed with the developer to a recording medium, the image forming apparatus comprising: a light source configured to output the laser beam for exposing the photosensitive member; a first signal generating unit configured to generate an image clock signal; a second signal generating unit configured to generate a multiplied clock signal by multiplying the image clock signal generated by the first signal generating unit; a storage unit configured to store image data; a control unit configured to read the image data from the storage unit in synchronism with the image clock signal, and to cause the second signal generating unit to generate the multiplied clock signal in a case where first data for causing the light source to output the laser beam is included in the image data read from the storage unit in synchronism with the image clock signal, while stopping the second signal generating unit from generating the multiplied clock signal in a case where second data for preventing the light source from outputting the laser beam is included in the image data read from the storage unit in synchronism with the image clock signal; a data processing unit configured to process the first data read from the storage unit based on the multiplied clock signal, output the first data processed based on the multiplied clock signal in synchronism with the multiplied clock signal, process the second data read from the storage unit based on the image clock signal and output the second data rocessed based on the image clock signal in synchronism with the image clock signal; and a drive unit configured to drive the light source based on the first data and the second data output from the data processing unit.