Patent ID: 8721029
Filing Date: 2014-05-13
Classification: B41J

Abstract:
1. A print device with printed surface identifying function, comprising: a feed roller assembly; a print assembly; a processing unit, further comprising an obtaining module, a determining module, a control module, and a sliding control module; at least one sliding bar, installed above or below one surface of the paper being printed in parallel; and a printed surface identifying assembly, installed on the at least one sliding bar, and controlled by the sliding control module to slide along the sliding bar, and configured to identify if one or both surfaces of a sheet of paper have already been printed, and generate and send a result to the processing unit; wherein the obtaining module controls the printed surface identifying assembly to identify if one or both surfaces of the sheet of paper have already been printed and generates the result, the determining module determines whether the paper is available for printing according to the result, and the control module controls the print assembly not to perform the printing task and the feed roller assembly to take the paper out of the print device when the paper is unavailable for printing.