Patent ID: 9272508
Filing Date: 2016-03-01
CPC Classification: B41J

Claim Text:
1. An element substrate comprising: a plurality of printing elements configured to generate energy to be used to discharge liquid; a wiring configured to supply a driving power to be used to drive said plurality of printing elements; a first delay buffer group formed by series-connecting a plurality of buffer circuits in which a heat enable signal is transferred while being delayed by said plurality of buffer circuits; a second delay buffer group formed by series-connecting a plurality of buffer circuits in which the heat enable signal is transferred while being delayed by said plurality of buffer circuits in a direction different from an arrayed direction of said plurality of buffer circuits of said first delay buffer group; and a switchover circuit configured to switch over, in accordance with a control signal, a delay sequence in a case where supplying the heat enable signal to each of said plurality of printing elements by switching over between said first delay buffer group and said second delay buffer group.