| 摘要 |
The present invention has an object to make the unallowed image forming apparatus be unable to use option data or option program even if having read out them from the allowed image forming apparatus having the option data or the option program. In an image forming apparatus, a program executing section judges whether the image forming apparatus meets identification information described in a license key stated in activating data in activating key file when executing Java program serving as option program, and executes the Java program in the case that the image forming apparatus meets the identification information. |
