| 摘要 |
<p>A printer having one roller of a transportation roller pair (33a, 33b) attached to cover renders the mechanism pressing the transportation roller pair (33a, 33b) together and the damping mechanism used when opening the cover using few parts, compactly, and at low cost. A damper spring (27) prevents the cover unit of the printer from opening suddenly and forcefully. A roller support lever (38) having the first follower roller (33b) disposed to the distal end thereof is attached rotatably and movably to the cover unit. The roller support lever (38) is urged by the damper spring (27), and the first follower roller (33b) on the distal end thereof is pressed to the first transportation roller (33a) on the printer frame side. The damper spring (27) functions as the damping mechanism when the cover unit opens, and as the pressure mechanism of the first transportation roller pair (33a, 33b) when the cover unit is closed.</p> |
