Liquid ejecting apparatus and cooling unit

A cooling unit configured to cool a drive circuit provided in a liquid ejecting apparatus, the liquid ejecting apparatus including a head and the drive circuit, the head including an ejecting portion that, upon receiving a drive signal, ejects liquid from a nozzle provided in a nozzle surface, the drive circuit being coupled to the head and generating a drive signal, the cooling unit comprising:

• a first thermal conductive member that is in contact with a first portion on the drive circuit;
• a second thermal conductive member that is in contact with a second portion on the drive circuit;
• a first flow passage through which the first thermal conductive member and the second thermal conductive member are in communication with each other;
• and
• a controller that performs control on circulation of liquid through the first flow passage, wherein
• the controller performs first control of circulating liquid through the first thermal conductive member and the second thermal conductive member in this order in the first flow passage when an amount of heat generated at the first portion is larger than an amount of heat generated at the second portion, and performs second control of circulating liquid through the second thermal conductive member and the first thermal conductive member in this order in the first flow passage when an amount of heat generated at the second portion is larger than an amount of heat generated at the first portion.