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IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF

  • US 20090003861A1
  • Filed: 06/24/2008
  • Published: 01/01/2009
  • Est. Priority Date: 06/26/2007
  • Status: Active Grant
First Claim
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1. An image forming apparatus comprising:

  • a light beam output unit configured to output a light beam;

    a deflection unit for deflection scanning in a main scanning direction of a photosensitive member by reflecting the light beam from the light beam output unit;

    a timing information detection unit configured to detect timing information of the deflection scanning by the deflection unit;

    a calculation unit configured to calculate a correction amount of the main scanning direction for a next scan based on the timing information;

    a light beam modulation control unit configured to generate a light beam modulation signal based on image data and the correction amount; and

    a drive unit configured to drive the light beam output unit based on the light beam modulation signal.

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