At least one exemplary embodiment is directed to an optical scanning apparatus which includes a Vertical Cavity Surface Emitting Laser including a plurality of light-emitting portions that are spaced from each other in at least a sub-scanning direction, a first optical system including a light-condensing element that converts each of light beams from the laser into a light beam in another state; a deflector that reflects and deflects the light beams from the first optical system, and a second optical system that focuses the light beams deflected by the deflecting member on a surface to be scanned, where the second optical system includes at least an imaging optical element having an optical surface with a non-arc shape in a sub-scanning cross section.

 
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< MEMS scanner adapted to a laser printer

> Fuser apparatus, image forming apparatus including the fuser apparatus, and fuser controlling method

> Charging device capable of switching and executing charging processing for photosensitive surface of photosensitive member and collection processing for developing agent remaining on the photosensitive surface

~ 00568