| 摘要 |
This invention provides an ink jet printing apparatus and method with an inexpensive arrangement that allows a stable supply of an appropriate voltage to heaters without requiring a variable resistance load means or a power supply voltage changing means. The ink jet printing apparatus of this invention comprises: a plurality of nozzles arrayed in a print head; a plurality of energy generating means installed one in each of the nozzles for generating an ejection energy to eject ink from the nozzles, the plurality of energy generating means being divided into a plurality of blocks: and a drive control means for simultaneously driving the energy generating means in each block. The drive control means supplies an energy to the energy generating means making up each block through different kinds of energy supply paths.
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