| 摘要 |
A job device for increasing security of job data. A CPU (10) encrypts job data while saving job data required in execution of a job, saves part of the data (42) in RAM (14), and saves the remaining stored file (40) in a HDD (16). When the job ends, part (42) of the job data for the job in the RAM (14) is deleted. Part of the job data (42) is therefore completely eliminated as a result of this deletion, and it is not possible to know the complete job data even if the HDD (16) is removed and checked.
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