A method of using a replacement component of an image processing apparatus to be executed with a control unit of the image processing apparatus capable of using the replacement component, comprising the steps of:
- storing self apparatus identification information in a storage unit;
- obtaining component apparatus identification information and component administrator identification information registered in a data carrier disposed in the replacement component using an obtaining unit;
- inputting self administrator identification information into an input unit;
- comparing the self apparatus identification information stored in the storage unit with the component apparatus identification information obtained with the obtaining unit;
- comparing the self administrator identification information input through the input unit with the component administrator identification information obtained with the obtaining unit;
- writing the self apparatus identification information in the data carrier as the component apparatus identification information when the replacement component is attached to the image processing apparatus;
- determining that the replacement component is allowed to use when the self apparatus identification information matches the component apparatus identification information;
- determining that the replacement component is allowed to use when the component apparatus identification information is not registered in the data carrier;
- determining that the replacement component is not allowed to use when the self apparatus identification information does not match the component apparatus identification information;
- making the self administrator identification information be input through the input unit when the self apparatus identification information does not match the component apparatus identification information, and the component administrator identification information is registered in the data carrier;
- and
- determining that the replacement component is allowed to use when the self administrator identification information is input through the input unit, and the self administrator identification information matches the component administrator identification information.