Liquid jet printing apparatus.

摘要

An ink jet array printer (1) in which the voltage waveform (9) applied to the raster (14) of drops formed in each printing gun (2) for printing a line section of any one of successively formed transverse printing lines, comprises at least two successive sets of voltage levels which arrange the raster drops in a group in time order of drop formation for each set of voltage levels so that corresponding drops in each of the groups formed in the raster (14), if charged for printing, have similar differences of voltage level and have similarly spaced print locations in the line section of drops printed by the printing gun (2).