| 摘要 |
<p>PURPOSE:To decrease the number of the light emitting diodes, to decrease the number of driving circuits, and to improve a yield rate by moving a head, wherein the light emitting diodes are mounted at an equal interval with the distance of integer number of times of a dot pitch to right and left, and forming one dot line. CONSTITUTION:The light emitting diodes 1-7 are mounted in the head 2 at an equal interval with the distance of integer number of times of a dot pitch. Converging rod lenses 8-14 are provided in front of the light emitting diodes. Said head 2 is moved right and left at a constant frequency. During the movement from left to right and right to left,each light emitting diode is lighted a plurality of times in response to dot data, and a recording image 4 in lateral one line is sensitized on a light esnsitive drum 6. At this time the lights sensitive drum is stopped. But it is rotated by one dot interval when the direction of the head 2 is changed from left to right or vice versa.</p> |
