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:
Mar. 20, 2012
Filed:
Jun. 02, 2008
Applicants:
Chung-kai Wang, Taipei, TW;
Chien-kuo Kuan, Taipei, TW;
Inventors:
Chung-Kai Wang, Taipei, TW;
Chien-Kuo Kuan, Taipei, TW;
Assignee:
Primax Electronics Ltd., Taipei, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 3/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a duplex printing apparatus. The duplex printing apparatus includes a paper input tray, a paper ejecting tray, a paper pick-up roller, a paper feeding channel, a first paper transfer roller assembly, a scanning and developing print unit, a print region, a paper ejecting channel, a second paper transfer roller assembly, an inverting channel, a paper guide slice, a third paper transfer roller assembly and a paper ejecting roller assembly. By arranging the inverting channel between the print region and the paper ejecting tray, the printing speed is enhanced.