Patent ID: 6998603
Filing Date: 2006-02-14
Classification: B41J,G06K,H04N

Abstract:
1. A power control method of initializing a power control process in an image forming apparatus by maintaining power of a plurality of lasers at a predetermined value based on detected powers of the plurality of lasers, comprising: switching on a first laser of the plurality of lasers, a power of the first laser continuously changing to the predetermined value after being switched on; switching off the first laser when a synchronization signal is generated, said synchronization signal being generated each time the laser beam from the first laser is detected, said laser beam configured to scan a scanning surface in the image forming apparatus; repeating the switching on and the switching off for each of the plurality of lasers, individually, so that powers of all the lasers change to the predetermined value; and maintaining the powers of each of the plurality of lasers, one by one, to be the predetermined value based on the detected powers of each of the plurality of lasers in synchronization with a synchronization signal generated by each respective laser.