Abstract: A vibrating apparatus, such as a shuttle type dot printer, has a vibrating unit mounted in the casing thereof and which, when it operates, generates vibrations in opposite lateral directions of the vibrating unit. The vibrating unit is mounted in the casing for providing interacting of vibrations which occur in the inside by leaf type springs connected between pairs of projections on the vibrating unit and the casing with the plane of the leaf type springs perpendicular to the lateral direction of the vibrations of the vibrating unit. The apparatus further has a locking device for locking the vibrating unit relative to the casing, which, when the casing is on a supporting surface, allows the vibrating unit to vibrate freely in the opposite lateral directions, and which, when the casing is lifted off the supporting surface, locks the vibrating unit to the casing.

Abstract: A printer of a type ensuring a rapid and easy shift between a mode for effecting printing onto a continuous form and another mode for printing onto a cut sheet, comprises a delivery unit pivotally supported by a printer body frame. When the delivery unit is held at its first operational position wherein a platen fixed to the same unit is disposed close to a printing head, a continuous form delivered from tractors is further delivered along a continuous form feeding path which forms a flat plane, and printing is performed on the aforementioned platen of the delivery unit. On the other hand, when a cassette is mounted to the printer after the delivery unit is moved downward up to a second operational position, a cut sheet delivered from the cassette is delivered along a cut sheet feeding path which forms the same plane as the aforesaid flat plane, to be printed on a platen fixed to the cassette.