| 摘要 |
An image forming apparatus, and a method of controlling same, the image forming apparatus including an image carrying body; a light exposing unit which emits a light toward the image carrying body according to a light exposing signal; a light sensor which is disposed to a side of the image carrying body to receive a part of the emitted light; and a control unit which detects a biased amount in a sub scanning direction of the emitted light of the light exposing unit based on a sensing result of the light sensor.
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