Patent ID: 9584698
Date: 2017-02-28
CPC Classifications: G06F,H04N

Claim:
1. A printing device for providing multiple documents of one type, the printing device comprising: a scanning device for receiving an image data; a processor used to process the image data to generate a first printing information and a second printing information; and a optics printer used to print a first document and a second document respectively according to the first printing information and the second printing information; wherein, the first printing information includes the image data and a first identifying information; the second printing information includes the image data and a second identifying information different from the first identifying information; wherein, the first identifying information is composed of a first set of halftone pattern, a first set of lines, or a combining information thereof, the second identifying information is composed of a second set of halftone pattern, a second set of lines, or a combining information wherein, the first document is printed with the image data in a first printed region and the first identifying information is printed in a second printed region, and the second document is printed with the image data in a first printed region and the second identifying information is printed in a second printed region; wherein, the first printed region of the image data on the first document is spaced from the second printed region of the first identifying information on the first document, and the first printed region of the image data on the second document is spaced from the second printed region of the second identifying information on the second document.