| 摘要 |
<p>In an ink recording head having at least four nozzle opening rows (1,2,3,4), each row having nozzle openings so as to extend straightly in a sheet forward direction, the nozzle opening rows (1,2,3,4) are staggered by a single dot in the sheet forward direction in an order different from the physically arranged order. The maximum distance between nozzle opening rows to print vertically adjacent dots becomes smaller by L1 or L2 than at least the physical maximum distance L1 + L3 + L2, L1 or L2 being a distance between the outermost nozzle opening row and the inner nozzle opening row. As a result, the relative displacement in the vertical direction can be reduced by such distance L1 or L2 compared with a recording head in which nozzle opening rows (1,2,3,4) are sequentially staggered in the auxiliary scanning direction in the physically arranged order. <IMAGE></p> |
