| 摘要 |
A peripheral device having one or more functions comprises: an input unit letting a user input identification information; function selection buttons each of which is previously associated with one of the functions and can be operated for selecting the associated function; a usage per-mission information storing unit previously storing usage permission information (indicating whether the use of each function has been permitted or not) while associating it with the identification information on each user; and a notification unit notifying the user whether the user is permitted to use each function or not when the identification information is inputted, by displaying the function selection buttons regarding functions that the user has been permitted to use and the function selection buttons regarding functions that the user has not been permitted to use in different styles discriminable from each other based on the usage permission information associated with the inputted identification information.
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