Patent ID: 11429035

Abstract:
A light emitting device includes: a first light-emitting-element row that includes light emitting elements arranged in a row in a main scanning direction; a second light-emitting-element row that includes light emitting elements arranged in a row in the main scanning direction and that is positioned in such a manner that at least a portion of the second light-emitting-element row overlaps the first light-emitting-element row in a subscanning direction; and a light-emission control unit that switches a light-emitting-element row caused to emit light between the first light-emitting-element row and the second light-emitting-element row at a switching point that is set at a position in an overlapping portion in which the first light-emitting-element row and the second light-emitting-element row overlap each other. The light-emission control unit sequentially turns on the light emitting elements in the overlapping portion in the order in which the light emitting elements are arranged and sets a direction in which the light emitting elements are sequentially turned on in the first light-emitting-element row and a direction in which the light emitting elements are sequentially turned on in the second light-emitting-element row to be the same as each other.