IMAGE FORMING DEVICE, PRINT METHOD, AND CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an image forming device, a print method and a control program that enhance user convenience by properly printing each valid printing subject and each invalid printing subject.

SOLUTION: In the image forming device, a Print Only Error Report (S144) for printing only an error report if a digital signature is invalid, a Print Only Valid Page (S145) for printing only a page whose digital signatures is valid and printing an error report on the page whose digital signatures is invalid, and a Print Only Valid Part for printing only parts whose digital signature is valid and printing an error message on a part whose digital signature is invalid is added to the Job Digital Signature Processing keyword of XPS. The image forming device extracts a keyword from XPS data and performs printing in a mode specified by the keyword.

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