| 摘要 |
An ink jet recording apparatus comprises a plurality of ink discharge portions having discharge ports for discharging ink, ink channels communicating to said discharge ports, and electricity-heat converters for applying the heat energy to the ink within said ink channels, means for dividing said plurality of electricity-heat converters into plural groups and supplying a signal generating said heat energy to electricity-heat converters for each group, and conveying means for conveying a recording medium to be recorded with the ink discharged from said discharge ports, wherein the shapes of said ink discharge ports are changed between groups. <IMAGE>
|
