Patent ID: 6964470

Claim:
An ink-jet recording unit comprising: ink guides each of which is arranged in an ink channel to feed ink in a form of a dispersion of charged colorant particles in a solvent, has a tip protruded from an ink level in said ink channel, and guides the ink to the tip to agglomerate the colorant particles to eject the ink having the agglomerated colorant particles; ejecting electrodes each of which is positioned between the ink level and the tip of each of said ink guides in a height direction of said ink guides and is provided in close proximity to each of-said ink guides; voltage application means which applies to said ejecting electrodes a high-voltage pulse which is identical in polarity with said charged colorant particles to thereby allow the ink containing the colorant particles agglomerated at the tip of each of the ink guides to be ejected; shaking means which shakes the ink guided by said ink guides; and operation control means which controls an operation of said shaking means, wherein said shaking means is provided so that an ink shaking direction conforms to an ink ejecting direction.