Liquid discharge apparatus

A liquid discharge apparatus comprising:

• a liquid discharge head configured to discharge a liquid, the liquid discharge head including a head substrate;
• a first wire to which a first drive signal for driving the liquid discharge head is supplied;
• a second wire to which a second drive signal for driving the liquid discharge head is supplied;
• and
• a single relay substrate configured to relay the first drive signal and the second drive signal from the first wire and the second wire to the head substrate of the liquid discharge head,
• wherein the single relay substrate includes:
• a first connector configured to be connected to the first wire;
• a second connector configured to be connected to the second wire;
• and
• a relay connector configured to be connected to a head-side connector of the head substrate of the liquid discharge head,
• wherein the relay connector outputs, to the head-side connector:
• the first drive signal supplied from the first wire to the first connector, and
• the second drive signal supplied from the second wire to the second connector.