Patent ID: 9067411
Filing Date: 2015-06-30
Classification: B41J

Abstract:
1. A liquid discharge head comprising: a first unit configured to supply power; and a second unit including an input unit to which the power is input, a plurality of heaters connected to the input unit via a common power source line and operative to discharge liquid, an energization unit configured to energize the plurality of heaters, and a selection unit configured to select at least one target heater from the heaters to be energized with a predetermined current for discharging liquid, a block period comprising a discharge period during which the at least one target heater is energized, and a non-discharge period during which a plurality of non-target heaters are energized; the non-discharge period comprising a plurality of intervals; wherein the selection unit is further configured to select non-target heaters from the heaters to be energized for discharging liquid, the selected non-target heaters being different from the target heater and the non-target heaters are energized for an interval occurring before and a different interval occurring after the target heater is energized, and wherein the energization unit is further configured to energize each of the target heater with the predetermined current for discharging liquid selected by the selection unit and the non-target heaters with the predetermined current for a predetermined time respectively, the target heater for discharging liquid is energized for a first period corresponding to a time interval at which the liquid is discharged, and the non-target heaters are energized for a second period corresponding to a time interval at which liquid is not discharged.