Image forming apparatus

An image forming apparatus, comprising:

• an input device configured to receive a user operation;
• a near field wireless communication device;
• a terminal detecting unit configured to detect a mobile terminal device by using the near field wireless communication device;
• a reservation managing unit configured to receive a reservation request from a mobile terminal device of a user, and register reservation information, the reservation information indicating (a) a usage time zone specified by the received reservation request and (b) the mobile terminal device, the reservation request specifying the usage time zone among continuous plural time zones;
• and
• an operation restriction unit configured to change an operation control mode from an operation permission mode to an operation prohibition mode if (a) the mobile terminal device detected by the terminal detecting unit is a mobile terminal device of a reserving user who reserved as the usage time zone a current time zone or a next time zone of the current time zone and (b) there are no currently using users;
• wherein the operation permission mode is a status where an operation of an unspecified user can be received, and the operation prohibition mode is a status where a user operation is prohibited until a release operation of the reserving user.