| 摘要 |
PROBLEM TO BE SOLVED: To enhance such security that a special font is not unnecessarily used in an image forming device constituted so that a developing device can be exchanged and a storage medium incorporating at least a memory chip and storing the special font can be attached. SOLUTION: This image forming device is provided with a developing device detection switch 2 detecting that the developing device is exchanged and a control means 9 controlling the device so that the use of the special font is inhibited when the exchange of the developing device is detected. |
