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. 06, 1990
Filed:
Sep. 22, 1988
Hitachi, Ltd., Tokyo, JP;
Abstract
A thermal printer including a thermal printer and a thermal head wherein a clearance between the platen and the thermal head is not less than a maximum diameter of one roll of an ink filled ribbon set by a thermal head driving motor. A ribbon cassette is moved to a printing position and, after a printing operation has been completed to another ribbon cassette. A guiding arrangement for positioning the ribbon cassettes in predetermined positions is adapted to be rotatably driven by a ribbon cassette motor and a plate for supplying the ribbon cassette and receiving the ribbon cassetts. The plate is joined to a take-up end portion of the ribbon cassette and the guiding arrangement is adapted to be moved in the forward and rearward direction for supplying the ribbon cassette and receiving the ribbon cassette by a transfer belt which can be moved by a cassette-moving motor. The guiding arrangement is adapted to be changed by withdrawing from the ink ribbon to another ink ribbon by a fixing member which is adapted to be moved by a ribbon cassette motor. A plurality of ribbon cassettes can be selectively used so that an unnecessary feeding of the ink ribbon can be avoided.