Ink-jet printer and apparatus and method of recording head for ink-jet printer

An apparatus for driving a recording head for an ink-jet printer including a droplet outlet orifice through which an ink droplet is ejected and a means for generating energy for having the ink droplet ejected through the outlet orifice, comprising:

• means for generating a plurality of drive signals;
• and
• means for selecting any one drive signal of the plurality of drive signals in a time-division manner where a waveform of a cycle T is divided into switching points at each of which a different drive signal of the plurality of drive signals is selectable and supplying the selected drive signal to the means for generating energy.

An apparatus for driving a recording head for an ink-jet printer including a droplet outlet orifice through which an ink droplet is ejected and a means for generating energy for having the ink droplet ejected through the outlet orifice, comprising:

• means for generating a plurality of drive signals including a drive signal having a varying voltage waveform that disables ink droplet ejection in isolation from another waveform;
• and
• means for selecting any one drive signal of the plurality of drive signals in a time-division manner where a waveform of a cycle T is divided into switching points at each of which a different drive signal of the plurality of drive signals is selectable and supplying the selected drive signal to the means for generating energy.

A method of driving a recording head for an ink-jet printer including a droplet outlet orifice through which an ink droplet is ejected and means for generating energy for ejecting the ink droplet through the outlet orifice, comprising the steps of:

• generating a plurality of drive signals;
• and
• selecting any one drive signal of the plurality of drive signals in a time-division manner where a waveform of a cycle T is divided into switching points at each of which a different drive signal of the plurality of drive signals is selectable and supplying the selected drive signal to the means for generating energy.

A method of driving a recording head for an ink-jet printer including a droplet outlet orifice through which an ink droplet is ejected and means for generating energy for ejecting the ink droplet through the outlet orifice, comprising the steps of:

• generating a plurality of drive signals including a drive signal having a varying voltage waveform that disables ink droplet ejection in isolation from another waveform;
• and
• selecting one drive signal of the plurality of drive signals in a time-division manner where a waveform of a cycle T is divided into switching points at each of which a different drive signal of the plurality of drive signals is selectable and supplying the selected drive signal to the means for generating energy.