A liquid discharger is provided, which includes a gap adjustor that moves a first liquid discharge head between a first position and a second position where a gap between the first liquid discharge head and a sheet is smaller than when the first liquid discharge head is in the first position, and a controller configured to, when determining that second liquid is left enough to form an image and that a quality level stored in a storage unit is equal to or more than a predetermined level, control the gap adjustor to place the first liquid discharge head in the second position, control the first liquid discharge head to discharge the first liquid, and forbid a second liquid discharge head to discharge the second liquid.