| 摘要 |
PURPOSE:To set a given distance between a printing head and a paper by a method in which means to move, fix and retract a carrier mechanism are provided in such a combination that they can do specific works. CONSTITUTION:When a paper is set and a start button is pushed, a support rail 4A is turned toward the direction of an arrow C by the action (in the direction of an arrow F) of a spring 12, the action is transmitted through a retraction lever 11 to a carrier mechanism 2, and a ribbon shield 8 moves toward the direction of an arrow C' until the paper 6 is touched. Then, when exciting a first electromagnet 13, the rail 4A, the lever 11, and the carrier mechanism 2 are fixed their positions in such a way that they are in contact with each other through an armature 14. When exciting a second electromagnet 18 then, the coil 15 of the first electromagnet 13 turns toward the direction of an arrow E by a fixed amount and thereby the rail 4A and the lever 11 move toward the direction of arrow D and the carrier mechanism 2 moves toward the direction of an arrow D' by a given amount, resulting in the formation of a given distance between the shield 8 and the paper 6. |
