Maintenance method and image recording device

An image recording device, comprising:

• a first wiper that is impregnated with a cleaning liquid containing a surfactant,
• a second wiper that is impregnated with a defoaming liquid containing a defoaming agent,
• a support body configured to support the first wiper and the second wiper,
• a head including a nozzle surface on which a plurality of nozzles are opened, and
• a moving mechanism configured to cause the head and the support body to relatively move along a first direction, wherein
• the second wiper is located upstream of the first wiper in a moving direction of the support body,
• the first wiper and the second wiper abut against the nozzle surface when the support body moves along the first direction,
• the defoaming liquid has a ratio of a defoaming distance to a foaming distance of 4.41% or more,
• the foaming distance is a first height of bubbles generated when the cleaning liquid is stirred by a stirrer for 1 minute, the cleaning liquid being put into a bottle having an inner diameter of 38 mm and a capacity of 50 ml so as to have a height of 20 mm, and
• the defoaming distance is a value obtained by subtracting, from the first height of the bubbles, a second height of bubbles after 1 ml of the defoaming agent is dropped into the bottle after the bubbles are generated.