| 摘要 |
<p>An apparatus and method of aligning different color print heads (20, 22) of an ink jet printer (10) by printing a sequence of extended-area first alignment elements (42) in a first color (44), then printing an overlaying sequence of extended-area second alignment elements in a second color (46.) Each of the alignment elements includes an array of spaced apart printed lines (44, 46). The first alignment elements are printed to nominal reference positions, and the second alignment elements are offset from the reference positions by differing amounts. The degree of overlap of the first and second color lines is readily visible, and the most thoroughly overlapped alignment element may be readily identified. The identity of this element may then be fed back to the printer to respond with electronic alignment measures. <IMAGE></p> |
