Image forming apparatus and control method of image forming apparatus

An image forming apparatus including a photoconductor and a light emitting unit, the photoconductor being configured to rotate in a sub-scanning direction, the light emitting unit including a plurality of light emitting elements arranged in line in a direction substantially parallel to a rotation axis of the photoconductor, the light emitting unit being configured to cause the plurality of light emitting elements arranged in line to sequentially emit light to form a latent image on the photoconductor, the image forming apparatus comprising:

• a generating unit configured to generate correction data used for correcting a shift in the sub-scanning direction of the latent image to be formed on the photoconductor by at least two of the plurality of light emitting elements;
• a correcting unit configured to correct image data based on the correction data generated by the generating unit;
• and
• a control unit configured to control light emission of the light emitting unit so as to form the latent image on the photoconductor, the latent image corresponding to the image data corrected by the correcting unit,
• wherein the generating unit is configured to generate the correction data based on configuration information of the light emitting unit, information indicating time required for causing the plurality of light emitting elements to emit light, and information indicating a rotation speed of the photoconductor.