An inkjet printer uses ink supply containers that includes bladders for holding waste fluids produced by printhead maintenance stations. The bladders are connected serially or in parallel to the output ports of the printhead maintenance stations to store waste fluids within the bladders of the ink supply containers. As the ink supply containers are depleted of their supply ink, they are replaced and new ink supply containers having bladders within them are installed to renew the capacity of the printer to store waste fluids. In two embodiments, the need for a waste fluid reservoir is eliminated and in a third embodiment, the operational life of a waste fluid reservoir is extended. In all of these embodiments, the production of plastic waste by the printer is reduced.

A liquid ejecting apparatus includes a liquid ejection head to eject liquid, a recovery unit, a housing, a discharge unit, a casing including the discharge unit and the housing, and a liquid receptacle. The recovery unit maintains liquid ejecting performance of the liquid ejection head. The housing houses a container that accommodates liquid received by the recovery unit. The discharge unit discharges the liquid received by the recovery unit to the container. The liquid receptacle is disposed below the discharge unit in a direction of gravity in the casing and includes a first groove extending in a first direction crossing the direction of gravity and a second groove extending in a second direction crossing the direction of gravity and the first direction.

An ink supplier includes: a supply reservoir storing ink to be supplied to a plurality of heads; and a discharge pipe used for discharging the ink from the supply reservoir. The supply reservoir includes: a cylindrical first horizontal reservoir having a plurality of supply ports each communicating with one of the plurality of heads; and a first vertical reservoir having a side surface provided with a first opening communicating with one end of the first horizontal reservoir. The first horizontal reservoir has a bottom surface that is tilted from a horizontal direction at an angle of tilt equal to or greater than 0.3 in such a manner as to extend downward from the one end toward the other end. The first horizontal reservoir includes a first discharge port provided at a bottom portion of the first horizontal reservoir at the other end and communicably connected to the discharge pipe.