| 摘要 |
An image scanning apparatus includes a light source unit (110) having a plurality of lamps (211,212). A converter (120) supplies power to the plurality of lamps (211,212) and adjusts the power according to a desired light intensity of each the plurality of lamps (211,212). A controller (130) controls the converter (120) such that at least one of the lamps is overdriven for a predetermined amount of time when lamp warm-up is initiated. Thus, the length of time required to wait until an operational light intensity is reduced. |
