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:
May. 07, 1991
Filed:
Nov. 15, 1989
Masakazu Sone, Tokyo, JP;
Kozo Kawakita, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A printer is provided which includes a thermal head serving first, second, and third operation modes. In the first operation mode, the thermal head is separate from the platen roller so as to allow a new sheet of printing paper to be inserted, from a roll, for example. In the second operation mode, the thermal head is pressed against the platen roller to via the sheet of printing paper to print an image thereon. In the third operation mode, the thermal head contacts with the platen roller, but under only the slight pressure exerted by its own weight to secure the printed paper sheet to cut it into a predetermined size. The provision of the third operation mode wherein little head pressure is exerted on the platen roller also prevents compression set from occurring on the platen roller.