| 摘要 |
Image forming apparatus that forms an electrostatic latent image on a surface of a photosensitive member with a laser beam, including a generation unit configured to generate a high-speed clock and a low-speed clock mutually different in frequency, a scanning unit configured to perform scanning of the laser beam in a main scanning direction based on the low-speed clock, a detection unit configured to detect the laser beam during a scanning operation performed by the scanning unit, a first shift register unit configured to receive a detection signal from the detection unit according to the high-speed clock, and an output unit configured to receive a parallel output of the first shift register unit in synchronization with the low-speed clock and to output detection timing of the laser beam as a detection signal synchronized with the low-speed clock and a value corresponding to a shift number defined by the high-speed clock. |
