초록 ▼

A thermal transfer type printer comprising a sun gear 10 connected (indirectly) with a motor 1, exchanging arms 11, 14 having a pin 13,16 respectively, planet gears 12,15, an exchanging gear having bosses 18,19 and engaging with the planet gear 12, a cam 20, a link mechanism 33, and gears 24-32 whic

A thermal transfer type printer comprising a sun gear 10 connected (indirectly) with a motor 1, exchanging arms 11, 14 having a pin 13,16 respectively, planet gears 12,15, an exchanging gear having bosses 18,19 and engaging with the planet gear 12, a cam 20, a link mechanism 33, and gears 24-32 which engage with the planet gear 15 when the planet gear 15 comes to a predetermined angle position so as to drive a printing paper feeding mechanism 43,44 and to drive an ink ribbon feeding mechanism 45,46. The procedures of the pressing and separation of the thermal printing head, the feeding of the ink ribbon, and the feeding of the paper, can be carried out using only one motor, though not only web type paper but also sheet type paper are usable.

대표청구항 ▼

[ What is claimed is:] [9.] A printer comprising:a platen roller;a thermal printing head for printing with an ink ribbon between the thermal printing head and the platen roller;a feeder for feeding paper between the platen roller and the ink ribbon;a plurality of gears cooperating to provide a plura

[ What is claimed is:] [9.] A printer comprising:a platen roller;a thermal printing head for printing with an ink ribbon between the thermal printing head and the platen roller;a feeder for feeding paper between the platen roller and the ink ribbon;a plurality of gears cooperating to provide a plurality of different torque transmission paths to operate at least the platen roller and the feeder;a first arm and a second arm for changing between the different torque transmission paths by altering an engagement state of the gears; anda mode changing gear having a front surface opposite a rear surface, bosses extending from the front surface and the rear surface for controlling a position and movement of the first and second arms to change the engagement state of the gears.