| 摘要 |
An electronic camera having a printer with a portable printing function and a sheet feed device suitable for use with the printer. The electronic camera includes an image storage device it photoelectrically convert an optical image to picture data, a first memory to store picture data, and a printer unit to print the picture data. The printed picture data may be fed by a sheet drive mechanism having vibration member and a piezoelectric element fixed to the vibration member and expanding and contracting according to an applied voltage, and a driver which applies to the piezoelectric element a voltage including an alternating component, and at least one projection formed on the vibration member in a position in the neighborhood of a peak of the standing wave, and a sheet separation unit formed on the vibration member, outside the range of the standing wave. The sheet separation unit has a greater thickness than the thickness of the vibration member in the range of the standing wave, and includes a slit formed in the sheet separation unit. The slit has a thickness greater than the thickness of one sheet of paper being fed and smaller than the thickness of two sheets.
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