Patent ID: 6778204
Filing Date: 2004-08-17
Classification: B41J

Abstract:
A device for recording an image on a sheet-like recording material in accordance with image data, the device comprising:a rotatably supported drum including a peripheral surface on which the sheet-like recording material is wound; a recording head including an optical unit that receives the image data and irradiates the sheet-like recording material with a light beam modulated on the basis of the image data to record an image on the sheet-like recording material, the recording head disposed facing the peripheral surface of the drum and movable in the axial direction of the drum; a traveling amount detector for detecting a traveling amount of the recording head in the axial direction thereof from a predetermined position; a memory for storing data for compensating for displacement of the optical unit in the direction of the optical axis in correspondence with the traveling amount of the recording head; and a focal point adjusting mechanism for adjusting the focal point of the light beam by moving at least a part of the optical unit included in the recording head in the direction of the optical axis, wherein the focal point adjusting mechanism corrects the focal point based on the traveling amount of the recording head detected by the traveling amount detector, and on the data for compensating for displacement of the optical unit in the direction of the optical axis stored in the memory, in correspondence with the traveling amount of the recording head.