| 主权项 |
1. An ink jet printing apparatus for performing printing by using a print head that includes a substrate and a plurality of printing element arrays provided on the substrate and that ejects ink according to transmitted data, each of the plurality of printing element arrays having a plurality of printing elements which produces energy for ejecting ink by applying a driving pulse, the driving pulse comprising a pre-pulse which is applied from a first timing and a main pulse which is applied from a second timing later than the first timing, the ink jet printing apparatus comprising:
a first determination unit configured to determine the driving pulses corresponding to the plurality of printing element arrays as a plurality of first driving pulses; an obtaining unit configured to obtain an overlapping value related to the number of overlapped timings among the first timings and the second timings of the plurality of first driving pulses, determined by the first determination unit, corresponding to the plurality of printing element arrays; a second determination unit configured to determine the driving pulses, according to the overlapping value obtained by the obtaining unit, to be applied to the plurality of printing element arrays as a plurality of second driving pulses; and a control unit configured to control ejecting ink from the plurality of printing element arrays based on the plurality of second driving pulses determined by the second determination unit, wherein the second determination unit
determines the plurality of first driving pulses determined by the first determination unit as the plurality of second driving pulses, when the overlapping value obtained by the obtaining unit is smaller than a predetermined threshold, anddetermines a plurality of third driving pulses which is not the plurality of first driving pulses as the plurality of second driving pulses, when the overlapping value obtained by the obtaining unit is larger than the predetermined threshold. |
