| 摘要 |
PURPOSE:To realize a two-color printing format and obtain a small-type printer capable of printing with positional notation and increasing a view angle, by providing two color ink rollers alternately brought into contact with type belts wound around a type wheel. CONSTITUTION:Two type belts 6 having the same pattern and coated respectively with different color inks are provided in the state of being evenly disposed in the circumferential direction of the type wheel 4, and printing in two colors is conducted, while controlling drive by a timing signal without using expensive pulse motors. The type belt 6 for each digit place is provided with a positional notation mark ',', whereby clear positioned notation can be achieved within a limited number of digit places and without reducing the number of digit places. A printing paper is fed forward by a large pitch immediately after completion of printing, and is fed back to the printing position immediately before the next printing, so that the view angle can be markedly enlarged. |
