Abstract: An improved print-cartridge carriage for ink-jet printers. It contains: (a) a carriage frame having a first recess, a second recess, a pair of spaced L-shaped, and a bearing allowing the carriage frame to be horizontally movable; (b) a gripping spring disposed in the first recess; (c) a pair of spring loaded buttons disposed in the second recess, each of spring loaded buttons has a first bevel surface; and (d) a gripping member having two symmetrically lateral second bevel surfaces. Each of the second bevel surfaces is slidably and respectively engageable with one of the first bevel surface such that the gripping member can be moved relating to the spring loaded buttons and be lifted upwardly when the spring loaded buttons are pressed inwardly.

Abstract: The present invention discloses an apparatus disposed in a printer for turning over printed papers, which is capable of guiding printed papers to move toward a first paper receiving tray or a second paper receiving tray so as to pile the printed papers thereon with face down or face up. The apparatus includes a shaft disposed within the printer which is capable of being pivotally rotated around its longitudinal axis; a guiding means fixed on the shaft, having a first guide surface for guiding printed papers to move toward the first paper receiving tray and a second guide surface for guiding printed papers to move toward the second paper receiving tray, the first and second guide surfaces are disposed in such a way that only one of the first and second guide surfaces, in one time, is guided to face printed papers when the shaft is pivotally rotated around its longitudinal axis; and a crank capable of being urged by the first paper receiving tray.