To provide a printing device capable of appropriately transporting an ink ribbon between a supply roll and a winding roll in which the ink ribbon is released and wound in bidirection while simplifying its construction.
A printing device 1 comprises: a supply roll 4; a winding roll 5; and a diving power transmitting mechanism 31 transmitting diving power from a drive source 30 to the supply roll 4 and the winding roll 5. In a case where a direction in which the winding roll 5 winds the ink ribbon is defined as a ribbon winding direction and a direction in which the supply roll 4 winds the ink ribbon 3 is defined as a ribbon rewinding direction, the diving power transmitting mechanism 31 comprises: one way clutch which transmits diving power from drive source 30 in the ribbon winding direction to the winding roll 5 and interrupts transmission of diving power from the drive source 30 in the ribbon rewinding direction to the winding roll 5; and one way clutch which transmits diving power from drive source 30 in the ribbon rewinding direction to the supply roll 4 and interrupts transmission of diving power from the drive source 30 in the ribbon winding direction to the supply roll 4.
| JP2010162736A | 2010-07-29 | |||
| JPH0255180A | 1990-02-23 | |||
| JP2009078400A | 2009-04-16 | |||
| JPH11268387A | 1999-10-05 | |||
| JPH0615904A | 1994-01-25 | |||
| JP2008105291A | 2008-05-08 | |||
| JP2010162736A | 2010-07-29 | |||
| JPH0255180A | 1990-02-23 | |||
| JP2009078400A | 2009-04-16 | |||
| JPH11268387A | 1999-10-05 |
Shiro Yokozawa
Toru Kawai
Kawaguchi Nobuko
Next Patent: INK RIBBON CASSETTE, INK RIBBON CARTRIDGE, AND PRINTING DEVICES