| 摘要 |
PURPOSE:To improve a printing dignity by operating the regular coordinates which carry out a dot marking with a prescribed pitch and the coordinates which are displaced by a distance of half of the diameter of a dot in either a vertical or horizontal direction in combination. CONSTITUTION:A displaced coordinates SS indicated by a dotted chain line is formed with being overlapped on the regular coordinates indicated by a solid line, and being displaced at least either in an X axis or Y axis direction by half of a diameter of a dot or a center distance between the dots. In the case of the Y axis direction, the firming of the dislocated coordinates is achieved in such a way that an element carrying out a dot marking, for instance, the nozzle 11 for displacement marking of printing head 10 indicated by a broken line are positioned between the nozzles 12 for the regular coordinates indicated by a solid line respectively. In the case of an X axis direction, it is achieved in such a way that a feeding pitch of the printing head 10 is constituted so as to be able to be fed by a displaced pitch 14 indicated by the dotted chain line positioned between the regular feeding pitch 13 indicated by the solid line. thereby, a printing quality is improved. |
