To provide a waste ink recovery device of a printer capable of recovering waste ink from a plurality of printers separately to a flow collecting drum at one position even in a position where head does not exist.

A plurality of suction apparatuses 12 which suck waste ink from each printer respectively corresponding to a plurality of printers 9, a transfer tank 14 storing the waste ink, a circulating line 21 which circulates the waste ink in series through each suction apparatus from the transfer tank, a circulating pump 16 provided to the circulating line to the downstream side of the transfer tank, and a branch line 22 which is provided to the circulating line to take out the waste ink, are provided. A plurality of suction apparatuses are respectively composed of an ejector 18 sucking the waste ink from the printer provided in the circulating line, and a bypass line 23 bypassing the ejector.