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:
Dec. 03, 1991
Filed:
Dec. 28, 1989
Yasushi Ishikawa, Tokyo, JP;
Seikosha Co., Ltd., Tokyo, JP;
Abstract
A duplex printing apparatus includes a first conveyance device for supplying recording paper from a first paper supply tray to a printing device; a second conveyance device for supplying the recording paper from a second paper supply tray to the printing device; a third conveyance device for conveying the recording paper printed by the printing device to a paper receiving tray; a fourth conveyance device for conveying the recording paper to the second paper supply tray; a paper switching device disposed at the third conveyance device and operable to selectively send the recording paper printed by the printing device to the second paper receiving tray or to the fourth conveyance device; and a driving mechanism for the second paper supply tray which is operable to move the second paper supply tray to one position for receiving the recording paper from the fourth conveyance device and to another position in which the second paper supply tray supplies the recording paper to the printing device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile