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:
Aug. 13, 2002
Filed:
Feb. 16, 2000
Yoshiharu Matsumoto, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Problems relating to shifting and misalignment of an ink ribbon relative to the print head as a result of changing the color used for printing with a multi-color ink ribbon are eliminated with the least possible reduction in printing throughput. The ink ribbon can be wound in conjunction with print head movement, and has a plurality of ink colors arranged in a direction perpendicular to the ribbon winding direction. Switching mechanisms and change the relative position between the print head and the ink ribbon in the directional perpendicular to the ink ribbon winding direction. If, after a switching mechanism changes the ink color selection, the distance l of print head movement to the next print start position accompanied by ink ribbon winding is less than a specific distance L needed to correct any misalignment of the ribbon to the print head, the controller moves the print head in a non-printing winding mode a distance of at least L−l to wind the ribbon.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile