| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus that ensures security of data against an expansion program developed by a third person and has achieved the sharing of data used in the expansion program, and a control method of the image forming apparatus.SOLUTION: An image forming apparatus confirms permission of an expansion program, distinguishes data of an expansion program having authority from data of an expansion program not having authority, and synchronizes only the data of the expansion program having authority to guarantee performance and security. |
