In a DC-DC converting circuit, a charge pumping part receives an input voltage, a first clock and a second clock and outputs first and second voltages to first and second nodes, which are boosted by high voltages of the first and second clocks with respect to the input voltage. The insulative mask can include an opening that is aligned over and exposes an inner portion of the contact pad. The cover system can be used in conjunction with both active and passive mixing devices. In some embodiments the captured data may include both a video data stream and one or more still image frames having different quality characteristics andor formats. An out-of-jetting micro-vibrating controlling unit causes the micro-vibrating unit to operate when the head member is located in the out-of-jetting micro-vibrating areas, while the head member is caused to relatively move by the scanning mechanism, based on the out-of-jetting micro-vibrating areas and head-position information.