| 摘要 |
PURPOSE:To make it possible to confirm the progress of recording at a glance, by providing protruded parts at an equal interval on the locus which spirally revolves on time on the circumference of a roller, compressing a recording card by the operation of a plunger, and recording the graphic representation of dots. CONSTITUTION:The printer is provided with the roller 10, the plunger 35 which is linked to the roller 10, and the recording card 30 which can be freely put in and pulled out with respect to the tangential surface of the roller 10. The protruded parts 11 with the equal interval are provided on the locus which spirally revolves one time on the circumference of said roller 10. The roller 10 is rotated by one segment by the one cycle operation of the plunger 35. Said protruded parts 11 are moved one segment, the recording card 30 is compressed, and the graphic representation of the dots are recorded on the recording card 30. In this way, the progress of the recording can be definitely confirmed at a glance. |
