printing device

Abstract

Abstract PURPOSE:A printer wherein a head is fed at the time of forward rotation of a motor, and a paper is fed after returning the head to a printing starting point at the time of reverse rotation of the motor, so that a head-feeding operation and a paper-feeding operation can be selectively performed by a single motor. CONSTITUTION:When a driving motor 2 is rotated in the direction of an arrow A, a head-feeding screw 8 is rotated in the direction of an arrow C through gears 12, 15, 14, and the printing head 1 is moved from a home position. When the head 1 reaches the final end or when printing is completed at an intermediate position, the motor 2 is reversely rotated in the direction of an arrow B to return the head 1. When the head 1 is returned to the home position, it comes into contact with the tip of a push rod 11, thereby moving a change-over gear 15 through the rod 11, whereby engagement between a feeding gear 14 and the change-over gear 15 is released, and the movement of the head 1 is stopped. Simultaneously, engagement of a male screw part 16b of a paper-feeding gear 16 and a female screw part 15c of the gear 15 is started, and when the gear 15 and the gear 16 are united to each other, the paper is fed.

Inventors

• 👤 Minoru Mukoda
• 👤 向田　稔
• 👤 Katsuhiko Suwa
• 👤 諏訪　勝彦

Bibliographic Details