US Patent 7640369 Peripheral device capable of blocking and unblocking connection detection

A peripheral device has a communication section for communicating with operational equipment, the operational equipment including a detecting unit configured to detect a peripheral device, and an installing unit configured to install a driver to control the peripheral device detected by the detecting unit, a first setting section configured to set a blocking state that blocks detection by the detecting unit prior to activation of the installing unit, a determining section configured to determine whether the installing unit has been activated or not, and a second setting section configured to cancel the blocking state set by the first setting section after the determining section determines that the installing unit has been activated and configured to set a permitting state in which detection by the detecting unit is permitted.