Patent ID: 8724160
Filing Date: 2014-05-13
Classification: G06K

Abstract:
1. An image forming apparatus comprising: an accumulation unit that accumulates image forming data for forming an image for each logical page and print copy number information for printing the image forming data; an instruction unit that instructs print of the image forming data accumulated in the accumulation unit; an output unit that outputs an image on a print medium based on the image forming data for which the instruction unit instructs the print and the print copy number information relating to the image forming data; an identifier computing unit that manages an identifier group in accordance with the number of logical pages of the image forming data and the print copy number information, and computes a unique identifier for each physical page output by the output unit from an initial identifier provided in response to a print request from an external apparatus which provides the initial identifier out of the identifier group; a combining unit that combines each identifier computed by the identifier computing unit with an image of each physical page output by the output unit; and a change unit that changes the print copy number information used by the output unit to output the image, wherein the combining unit does not perform the combining for an increased copy number of a physical page if the change unit increases the print copy number information.