Patent ID: 7088381
Filing Date: 2006-08-08
Classification: B41J,H04N

Abstract:
1. An image forming apparatus comprising: a plurality of light sources that emit light beams; a plurality of optical scanners that respectively scan the emitted light beams to form images; a plurality of beam detectors that detect the scanned light beams and output detection signals; a phase controller that controls, in an image forming mode for forming images, said plurality of optical scanners to have a first phase relationship based on the detection signals, and controls, in an adjustment mode for adjusting an image forming condition, said plurality of optical scanners to have a second phase relationship different from the first phase relationship based on the detection signals; a plurality of light amount detectors that detect light amounts of the light beams; and a single A/D converter that sequentially converts analog data representing the light amounts of the light beams detected by said light amount detectors into digital data.