A waste liquid collection device includes: a tank housing that stores a liquid; a tubular member that causes the liquid to flow into the tank housing; a distance holding device disposed at an end portion of the tubular member suspended in an internal space of the tank housing; and a buoyancy imparting device having buoyancy for the liquid and causes the distance holding device to float on a liquid surface of the liquid, while keeping a certain distance between the end portion of the tubular member and the liquid surface using the buoyancy of the buoyancy imparting device. A liquid discharge apparatus includes the waste liquid collection device.

The liquid absorbing structure includes: a liquid absorber having a fiber and a water-absorbent resin capable of absorbing liquid; and a container having a supply port through which the liquid is supplied and a storage space in which the liquid absorber is stored. The liquid absorber contains a first liquid absorber and a second liquid absorber that are different in density of at least one of the fiber and the water-absorbent resin. The first liquid absorber and the second liquid absorber are disposed at different positions in the container.

A liquid absorber including a liquid absorbent body configured to include a small piece aggregate including a plurality of small pieces having a fiber base material containing a fiber and a water absorbent resin, and a container that includes a wall portion defining a storage space accommodating the liquid absorbent body, and a protrusion portion provided to protrude from the wall portion toward the storage space, in which when a minimum separation distance between a tip end of the protrusion portion and a structure different from the protrusion portion is L1, and an average value of a distance between farthest ends of the small piece is L2, 0<L1/L2≤1.80 is satisfied.

An image forming system includes a fluid applicator unit, a substrate positioning unit, and a fluid collector assembly. The fluid collector assembly includes a collector substrate, a collector advancement unit, and a collector control module. The fluid applicator unit may apply fluid to a substrate. The substrate positioning unit may position the substrate in a printzone to receive the fluid from the fluid applicator unit such that a first portion of the fluid remains on the substrate and a second portion of the fluid does not remain on the substrate. The collector substrate may collect the second portion of the fluid in the printzone below the substrate. The collector advancement unit may advance the collector substrate along a collector transport path below the substrate in the printzone. The collector control module may control the collector advancement unit to selectively advance the collector substrate along the collector transport path in response to application of the fluid to the substrate by the fluid applicator unit.

An inkjet printer comprising an ejection device, movably provided along a print zone and a spit zone, a printer controller to control ejection device maintenance, a spittoon located in the spit zone to receive maintenance ink ejected by the ejection device in the spit zone when ejection device maintenance is performed, is provided. The printer controller is to set a random spit position within the spit zone at which the ejection device is to eject the maintenance ink into the spittoon and to cause the ejection device to move to the set random spit position and to eject the maintenance ink into the spittoon at the random spit position.

A liquid absorber includes a container that has an opening and that recovers liquid and a first absorbing unit that is constituted by an aggregate of porous absorbing body blocks and that is housed in the container such that a gap exists between the porous absorbing body blocks. The porous absorbing body blocks have a density of 0.05 [g/cm.sup.3] or more and 0.50 [g/cm.sup.3] or less.

An inkjet printer includes a printer body, a waste ink container, and a cover member. The waste ink container includes a first engagement portion. The cover member constitutes a part of a housing of the inkjet printer and includes a second engagement portion. The second engagement portion is engageable with the first engagement portion.

A cartridge for a printing system comprises a receptacle to receive waste printing material from the printing system, a floater to change its position based on a varying filling level of the waste printing material in the receptacle, and a flag mechanically coupled to the floater, wherein a position of the flag depends on the position of the floater and indicates, outside of the receptacle, the filling level.

A waste liquid container is detachably attached to an attachment section that is, in a use state, positioned on a down-direction side of a discharge section that discharges waste liquid from a liquid ejecting head, and the waste liquid container includes: a storage section having an inlet section that is positioned on an up-direction side and introduces the waste liquid which flows down from the discharge section; an absorbing member that is accommodated in the storage section, forms the inlet section, and absorbs the waste liquid introduced to the inlet section; and an accumulation region that communicates with the inlet section inside the storage section, is positioned on the down-direction side of the inlet section, is formed to have an area, when viewed in plan view from a top, larger than an area of the inlet section, and is configured to accumulate the waste liquid in a bubble form.

A print head for applying a coating material to an object to be coated, the print head including a body wherein a plurality of nozzles are arranged, each including an ejection hole and an outlet channel opening into an ejection zone for ejecting the coating product via the ejection hole, as well as a coating product feeder circuit connected to the nozzle. The print head further includes a maintenance circuit for carrying a maintenance fluid and extending inside the body to the ejection zone of the nozzle. The maintenance circuit includes a plurality of internal channels each opening into the ejection zone of a single nozzle associated with the first internal channel. The number of first channels is equal to the number of nozzles.