The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2008
Filed:
Jul. 27, 2005
Young-jung Yun, Suwon-si, KR;
Young-jung Yun, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A method and apparatus for adjusting the alignment of an image forming device using two thermal heads, wherein the method includes the steps of (a) printing first and second predetermined patterns on the medium by using the first and second thermal heads, respectively, (b) detecting a distance difference of print positions between the first and second thermal heads by using the printed patterns, and (c), based on the detected distance difference, transforming image data printed by the thermal heads to adjust the alignment in subpixel units. Therefore, a distance difference of printing positions of the thermal heads can be compensated by detecting the distance difference between the printing positions of the thermal heads, and moving the target image data by the detected distance difference. As a result, the alignment of the thermal heads can be easily and accurately adjusted.