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:
Feb. 10, 1987
Filed:
Dec. 27, 1985
Kouji Shibuya, Machida, JP;
Chiharu Imazeki, Yokohama, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A thermal printer automatically varies torque of a slip clutch provided between a motor and an ink film takeup roller with movements of a thermal head such that the torque transmitted to the takeup roller is smaller when the thermal head is in a transfer position than when the thermal head is in a non-transfer position. This assures that the takeup roller is driven properly by increasing the torque transmitted to the takeup roller when the thermal head is in the non-transfer position and an ink film is taken up in a large amount. When the thermal head is in the transfer position and the ink film is taken up in a small amount, the torque transmitted to the takeup roller is reduced to avoid a great tension acting on the ink film.