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:
Jan. 18, 1994
Filed:
Jun. 29, 1992
Daniel C Maslanka, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A thermal printer has a donor web positioning system that uses a single sensor in conjunction with a capstan roller. The roller is driven by a stepper motor to precisely meter the donor web. The roller is positioned between the print drum and the take-up spool and drivingly engages the donor web and controllably advances the donor web towards the take-up spool at a known rate as the web is paid out of the print zone. The single sensor is positioned between the print drum and the supply spool to detect the start of the plurality of frames of dye, as the donor web advances. Each individual frame is then positioned properly by causing the capstan drive motor to advance a known, pre-programmed number of steps to place the beginning of each color frame at the heater line of the thermal head.