A lever-type connector is configured so that a lock piece of a lock resiliently locks a locked portion to hold a lever at an end position when the lever is rotated to the end position. The generating section generates an edge histogram of a decoded image obtained from a video signal. Adjusting the digitally filtering nominal position values as a function of dynamic characteristics of the machine and adjusting an interpolator clock rate as a function of the dynamic characteristics of the machine. Alternatively more extended heating can render the fingerprint assemble under ultraviolet light, and under yet more extended heating permits viewing under white light. There is further provided a time-out unit which is connected to the input unit and which is adapted to start the delivery of the first clock signal when external request signals are absent over a given period of time. The retaining member has an aperture.