Patent ID: 7289238

Claim:
An option function setup method which sets up an option function of an image forming apparatus from an information processing apparatus connected to the image forming apparatus though a communication medium, said method comprising: an instruction step of instructing validation and invalidation of the option function of the image forming apparatus from the information processing apparatus; a comparison step of comparing only one image forming apparatus ID stored in the information processing apparatus with an own ID of the image forming apparatus itself stored in the image forming apparatus; a setup step of performing, in a case where as a compared result in said comparison step only one image forming apparatus ID stored in the information processing apparatus coincides with the own ID of the image forming apparatus itself stored in the image forming apparatus, a setup process for the option function of the image forming apparatus according to information concerning the validation and invalidation of the option function of the image forming apparatus instructed on the information processing apparatus side; and a non-setup step of not performing, in a case where as a compared result in said comparison step only one image forming apparatus ID stored in the information processing apparatus does not coincide with the own ID of the image forming apparatus itself stored in the image forming apparatus, the setup process for the option function of the image forming apparatus according to the information concerning the validation and invalidation of the option function of the image forming apparatus instructed on the information processing apparatus side.