Job execution apparatus having charging / refunding function using electronic money, charging / refunding method for the same, and charging / refund processing program

摘要

A job execution apparatus having the function of billing and refunding by electronic money, determines before job execution, an amount of money required for job execution, and bills before job execution, the determined amount of money to a payment medium having the payment function, which is set to a billing apparatus. And the job execution apparatus can transfer a refund to the payment medium set to the billing apparatus if a refund needs to be transferred. The job execution apparatus also can transfer a refund by a method other than the method of refunding to the payment medium by using the billing apparatus.