Blocking unit for use of part e.g. development cassette in image prodn. unit

摘要

A control unit (28) is provided for controlling the part e.g. the development cassette. So that the control unit includes the second storage unit for the storing of a pre-determined identification code and a blocking unit for the prodn. of a signal. This signal operates the part, if the identification code read from the first storage unit coincides with the pre-determined identification code. Which is read out from the second storage unit in response to a determined control signal.