Patent ID: 6456314
Filing Date: 2002-09-24
Classification: B41J

Abstract:
An optical printing head comprising:a light-emitting component array having a plurality of light-emitting components arranged therein; and an imaging component array having a plurality of imaging components arranged therein each for imaging from a light flux from a respective light-emitting component of said light-emitting component array to a beam spot on an image carrying body surface, wherein, in a configuration relationship between said light-emitting component array, imaging component array and image carrying body surface, a focal length of said imaging components is slightly larger than a focal length of the imaging components obtained in a condition in which a unity-magnification relationship is satisfied, wherein the imaging component array forms an image erecting system along an arranging direction along which the plurality of imaging components are arranged, and the light flux from each light-emitting component forms an image on the image carrying body through a plurality of imaging components of the imaging component array.