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:
Nov. 03, 1992
Filed:
Dec. 18, 1989
Eiichi Yamanishi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A lamp mounted on a first carriage emits light onto an original placed on an original table. A photoelectric converter converts light reflected by the original into an electrical signal by using mirrors, a zoom lens, and the like mounted on a second carriage. In accordance with the electrical signals supplied from the photoelectric converter via a control unit, a thermal head transfers inks from an ink ribbon onto paper wound around a platen drum to form an image corresponding to an original image on the paper. An operation panel has a magnification-set key for setting the magnification of an image to be formed by the thermal head. A stepping motor drives the first and second carriages. When the magnification set by the magnification-set key falls within a predetermined range, a motor drive in the control unit sets the speed of the stepping motor to a high speed and supplies a high current. When the magnification exceeds the predetermined range, the motor driver sets the speed of the stepping motor to a low speed and supplies a low current.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile