Image forming apparatus and method, image forming system, and computer readable medium

摘要

An image forming apparatus includes the following elements. A first obtaining unit obtains a print request including image forming data used for forming an image for each of logical pages. An output unit outputs a print medium on which an image is formed. A combining unit obtains, in response to the print request, from an external device that manages identifiers for specifying output numbers, information concerning a set of identifiers that specify the logical pages and an output number, and combines the obtained information with an image. A second obtaining unit obtains information concerning the identifiers combined with the image. A third obtaining unit obtains, if execution of the print request has stopped, print request stop information. A sending unit sends the obtained information concerning the identifiers and the print request stop information to the external device in association with each other.

主权项

1. An image forming apparatus comprising:
a processor configured to act as a first obtaining unit that obtains a print request including image forming data which is used for forming an image for each of logical pages; an output unit that outputs a print medium on which an image is formed on the basis of the image forming data; the processor further configured to act as a combining unit that obtains, in response to the print request, from an external device that manages identifiers for specifying output numbers indicating a chronological order in which sets of logical pages are output, information concerning each of identifiers forming a set of identifiers that specify the logical pages corresponding to the image forming data, an output number indicating a chronological order in which a set of the logical pages is output, and an end marker of each set of logical pages, the combining unit combining the obtained information with an image formed on each of physical pages output by the output unit; the processor further configured to act as a second obtaining unit that obtains information concerning each of the identifiers combined with the image formed on the print medium output by the output unit; the processor further configured to act as a third obtaining unit that obtains, if execution of the print request has stopped, print request stop information indicating a reason why the execution of the print request has stopped; a sending unit that sends the information concerning each of the identifiers obtained by the second obtaining unit and the print request stop information obtained by the third obtaining unit to the external device in association with each other; and the processor further configured to act as an identification management unit that, responsive to an indication that one of the end markers of one of the set of logical pages does not correspond to the print request stop information, deletes identifier information of an unused identifier of the corresponding set of logical pages.