Ink-jet head driving device

摘要

In an ink-jet head driving device, data of a shift register is latched by a latch circuit (3). The data latched by the latch circuit is input to energization signal selection circuits (5). At this time, each selection circuit receives 1-bit data for operating a corresponding ink chamber (46), and 2-bit data for operating adjacent ink chambers (46) as reference data. Each selection circuit selects one from energization signals (TP1 to TP8) using the 3-bit data, and supplies the selected energization signal to a corresponding head driver, thereby generating a drive waveform for driving the ink chamber (46). <IMAGE>