Liquid discharge head and liquid discharge apparatus

A liquid discharge apparatus comprising:

• a liquid discharge head including:
• a head including a plurality of discharge holes for discharging liquid;
• a liquid supply conduit through which liquid is supplied to the head for discharge;
• a liquid discharge conduit through which liquid from the head flows if not discharged;
• a radiator including a flow path through which a coolant flows, the coolant being a liquid different liquid from the liquid supplied to the head for discharge;
• a first wiring board between the head and the radiator and having a connector connected to a wiring extending through an interior of the radiator;
• a second wiring board between the head main body and the first wiring board;
• a driving control element on the second wiring board and configured to control liquid discharge from the discharge holes;
• and
• a heat conductive member extending between the head and the radiator, and in thermal contact with the radiator;
• and
• a liquid circulator configured to supply liquid to the liquid supply conduit and recover liquid from the liquid discharge conduit.

An inkjet apparatus comprising:

• a medium holder;
• a liquid discharge head including:
• a liquid discharge head including:
• a head including a plurality of discharge holes for discharging liquid;
• a liquid supply conduit through which liquid is supplied to the head for discharge;
• a liquid discharge conduit through which liquid from the head flows if not discharged;
• a radiator including a flow path through which a coolant flows, the coolant being a liquid different liquid from the liquid supplied to the head for discharge;
• a first wiring board between the head and the radiator and having a connector connected to a wiring extending through an interior of the radiator;
• a second wiring board between the head main body and the first wiring board;
• a driving control element on the second wiring board and configured to control liquid discharge from the discharge holes;
• and
• a heat conductive member extending between the head and the radiator, and in thermal contact with the radiator;
• and
• a liquid circulator configured to supply liquid to the liquid supply conduit and recover liquid from the liquid discharge conduit;
• and
• a carriage mechanism configured to move the liquid discharge head relative to the medium holder.