Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Image forming apparatus and light intensity control method
An image forming apparatus includes a light source that outputs a plurality of laser beams and a control unit that adjusts the light intensity of each of the laser beams. The control unit calculates a correction value so that, when the laser beam is driven by a control value calculated by correcting a common control value using the correction value and adding a threshold to the corrected control value, the light intensity of the laser beam is equal to a target light intensity. The threshold is calculated so that, when the laser beam is driven by a control value calculated by multiplying the corrected control value by a predetermined factor, and adding the threshold to the multiplied control value, the light intensity of the laser beam is equal to the target light intensity multiplied by the predetermined factor.
Ricoh Company, Limited
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inventional inventional additional
Hidetoshi Norihiro
Yamashita Yamamoto