Abstract: There is provided a head system including: a head; a first supply channel; and a first discharge channel. The head has two groups each including a manifold which extends in a first direction and a plurality of pressure chambers each connected to the manifold and a nozzle. The two groups include a first group and a second group arranged in a second direction intersecting the first direction. The first supply channel is connected to the one end of the manifold included in the first group, and is connected to the opposite end of the manifold included the second group. The first discharge channel is connected to the opposite end of the manifold included in the first group and is connected to the one end of the manifold included in the second group.

Abstract: The head system includes: a plurality of heads disposed staggered along a first direction; a sub-tank disposed above the heads and configured to distribute a liquid to each of the heads; a plurality of liquid channels; a chiller configured to cool the heads, including a manifold disposed between the heads and the sub-tank in an up-down direction; and a casing having a pair of inner surfaces opposed to each other in a second direction orthogonal to the first direction and the up-down direction. Each of the liquid channels extends linearly parallel to the up-down direction in an entire region between the sub-tank and one of the heads. Each of the plurality of liquid channels and the manifold are aligned in the second direction between the pair of inner surfaces of the casing.

Abstract: A recording apparatus comprising a container to store a sheet of recording medium; a conveyer configured to convey the recording medium in the container; a main tank receiving portion configured to receive a main tank for storing liquid; a sub tank configured to store liquid supplied from the main tank; and a recording head including an ejection surface where ejection openings for ejecting liquid supplied from the sub tank are formed. Each of three projected areas which are an area of the main tank receiving portion, an area of the sub tank, and an area of the recording head, each projected to a virtual plane parallel to a surface of the recording medium contained in the container from a first direction orthogonal to the virtual plane, at least partially overlaps a container projected area which is an area of the container projected to the virtual plane from the first direction.

Abstract: There is provided a liquid discharge apparatus including: a head unit including: at least one liquid discharge head; a fill tank; and a drain tank. The liquid discharge apparatus further includes: a main tank; a pump; a first flow passage; a second flow passage; a third flow passage; a fourth flow passage; a fifth flow passage; a first valve; a second valve; a third valve; a fourth valve; and a fifth valve.

Abstract: There is provided a head system including: a head; a first supply channel; and a first discharge channel. The head has two groups each including a manifold which extends in a first direction and a plurality of pressure chambers each connected to the manifold and a nozzle. The two groups include a first group and a second group arranged in a second direction intersecting the first direction. The first supply channel is connected to the one end of the manifold included in the first group, and is connected to the opposite end of the manifold included the second group. The first discharge channel is connected to the opposite end of the manifold included in the first group and is connected to the one end of the manifold included in the second group.

Abstract: A recording apparatus comprising a container to store a sheet of recording medium; a conveyer configured to convey the recording medium in the container; a main tank receiving portion configured to receive a main tank for storing liquid; a sub tank configured to store liquid supplied from the main tank; and a recording head including an ejection surface where ejection openings for ejecting liquid supplied from the sub tank are formed. Each of three projected areas which are an area of the main tank receiving portion, an area of the sub tank, and an area of the recording head, each projected to a virtual plane parallel to a surface of the recording medium contained in the container from a first direction orthogonal to the virtual plane, at least partially overlaps a container projected area which is an area of the container projected to the virtual plane from the first direction.

Abstract: A conveyor apparatus, including: a tray; a feeder; a conveyance path; a conveyor; an upstream sensor; a downstream sensor; and a controller, wherein when it is determined that one certain recording medium has not yet reached a downstream detecting position of the downstream sensor at a time point when a first predetermined time elapses and the trailing edge of the recording medium has passed an upstream detecting position of the upstream sensor, the controller determines that a conveyance error is due to one of: a jam of the recording medium occurred in the conveyance path; and a slippage caused between the conveyor and the recording medium, if a medium length is less than a spacing distance between the upstream and downstream detecting positions while the controller determines that the conveyance error is due to the slippage if the medium length is equal to or larger than the spacing distance.

Abstract: There is provided a liquid discharge apparatus including: a head unit including: at least one liquid discharge head; a fill tank; and a drain tank. The liquid discharge apparatus further includes: a main tank; a pump; a first flow passage; a second flow passage; a third flow passage; a fourth flow passage; a fifth flow passage; a first valve; a second valve; a third valve; a fourth valve; and a fifth valve.

Abstract: A liquid ejection apparatus, including: a channel structure in which a channel is formed; an actuator stacked on the channel structure in a stacking direction, the actuator configured to cause a liquid in the channel to be ejected; a first frame formed of metal and stacked on the channel structure in the stacking direction; a driver integrated circuit (IC) electrically connected to the actuator; and a second frame formed of metal, the second frame including at least two side walls facing each other and an upper wall extending between the two side walls and extending in a direction orthogonal to the stacking direction, the second frame being thermally connected to the first frame, wherein the driver IC is disposed between the two side walls, and the upper wall of the second frame is thermally connected to the driver IC.

Abstract: A recording apparatus comprising a container to store a sheet of recording medium; a conveyer configured to convey the recording medium in the container; a main tank receiving portion configured to receive a main tank for storing liquid; a sub tank configured to store liquid supplied from the main tank; and a recording head including an ejection surface where ejection openings for ejecting liquid supplied from the sub tank are formed. Each of three projected areas which are an area of the main tank receiving portion, an area of the sub tank, and an area of the recording head, each projected to a virtual plane parallel to a surface of the recording medium contained in the container from a first direction orthogonal to the virtual plane, at least partially overlaps a container projected area which is an area of the container projected to the virtual plane from the first direction.

Abstract: A recording apparatus comprising a container to store a sheet of recording medium; a conveyer configured to convey the recording medium in the container; a main tank receiving portion configured to receive a main tank for storing liquid; a sub tank configured to store liquid supplied from the main tank; and a recording head including an ejection surface where ejection openings for ejecting liquid supplied from the sub tank are formed. Each of three projected areas which are an area of the main tank receiving portion, an area of the sub tank, and an area of the recording head, each projected to a virtual plane parallel to a surface of the recording medium contained in the container from a first direction orthogonal to the virtual plane, at least partially overlaps a container projected area which is an area of the container projected to the virtual plane from the first direction.

Abstract: A head unit includes: a head module having a nozzle surface; a casing; a first connector having a first communication opening; a second connector having a second communication opening; a first liquid-passage tube connected to the first communication opening; first and second branch-liquid-passage tubes connected to the first liquid-passage tube; a first tube joint connecting the first liquid-passage tube to the first and second branch-liquid-passage tubes; a second liquid-passage tube connected to the second communication opening; third and fourth branch-liquid-passage tubes connected to the second liquid-passage tube; and a second tube joint connecting the second liquid-passage tube to the third and fourth branch-liquid-passage tubes. The first tube joint is disposed between the second connector and the second tube joint when viewed in a direction parallel with the nozzle surface.

Abstract: A head unit includes a circuit board, a casing, and a head module including: a nozzle plate and a liquid-passage defining member stacked on each other in a stacking direction; a drive element; and an interconnect member. A distance between a first end and a second end of the nozzle plate which are spaced in a first direction is greater than a distance between a third end and a fourth end of the nozzle plate which are spaced in a second direction. A distance between a seventh end and an eighth end of the circuit board which are spaced in the stacking direction is greater than a distance between a fifth end and a sixth end of the circuit board which are spaced in the first direction.

Abstract: A recording apparatus comprising a container to store a sheet of recording medium; a conveyer configured to convey the recording medium in the container; a main tank receiving portion configured to receive a main tank for storing liquid; a sub tank configured to store liquid supplied from the main tank; and a recording head including an ejection surface where ejection openings for ejecting liquid supplied from the sub tank are formed. Each of three projected areas which are an area of the main tank receiving portion, an area of the sub tank, and an area of the recording head, each projected to a virtual plane parallel to a surface of the recording medium contained in the container from a first direction orthogonal to the virtual plane, at least partially overlaps a container projected area which is an area of the container projected to the virtual plane from the first direction.

Abstract: A liquid ejection apparatus, including: a channel structure in which a channel is formed; an actuator stacked on the channel structure in a stacking direction, the actuator configured to cause a liquid in the channel to be ejected; a first frame formed of metal and stacked on the channel structure in the stacking direction; a driver integrated circuit (IC) electrically connected to the actuator; and a second frame formed of metal, the second frame including at least two side walls facing each other and an upper wall extending between the two side walls and extending in a direction orthogonal to the stacking direction, the second frame being thermally connected to the first frame, wherein the driver IC is disposed between the two side walls, and the upper wall of the second frame is thermally connected to the driver IC.

Abstract: A head unit includes a circuit board, a casing, and a head module including: a nozzle plate and a liquid-passage defining member stacked on each other in a stacking direction; a drive element; and an interconnect member. A distance between a first end and a second end of the nozzle plate which are spaced in a first direction is greater than a distance between a third end and a fourth end of the nozzle plate which are spaced in a second direction. A distance between a seventh end and an eighth end of the circuit board which are spaced in the stacking direction is greater than a distance between a fifth end and a sixth end of the circuit board which are spaced in the first direction.

Abstract: A head unit includes: a head module having a nozzle surface; a casing; a first connector having a first communication opening; a second connector having a second communication opening; a first liquid-passage tube connected to the first communication opening; first and second branch-liquid-passage tubes connected to the first liquid-passage tube; a first tube joint connecting the first liquid-passage tube to the first and second branch-liquid-passage tubes; a second liquid-passage tube connected to the second communication opening; third and fourth branch-liquid-passage tubes connected to the second liquid-passage tube; and a second tube joint connecting the second liquid-passage tube to the third and fourth branch-liquid-passage tubes. The first tube joint is disposed between the second connector and the second tube joint when viewed in a direction parallel with the nozzle surface.

Abstract: A recording apparatus comprising a container to store a sheet of recording medium; a conveyer configured to convey the recording medium in the container; a main tank receiving portion configured to receive a main tank for storing liquid; a sub tank configured to store liquid supplied from the main tank; and a recording head including an ejection surface where ejection openings for ejecting liquid supplied from the sub tank are formed. Each of three projected areas which are an area of the main tank receiving portion, an area of the sub tank, and an area of the recording head, each projected to a virtual plane parallel to a surface of the recording medium contained in the container from a first direction orthogonal to the virtual plane, at least partially overlaps a container projected area which is an area of the container projected to the virtual plane from the first direction.

Abstract: A recording apparatus comprising a container to store a sheet of recording medium; a conveyer configured to convey the recording medium in the container; a main tank receiving portion configured to receive a main tank for storing liquid; a sub tank configured to store liquid supplied from the main tank; and a recording head including an ejection surface where ejection openings for ejecting liquid supplied from the sub tank are formed. Each of three projected areas which are an area of the main tank receiving portion, an area of the sub tank, and an area of the recording head, each projected to a virtual plane parallel to a surface of the recording medium contained in the container from a first direction orthogonal to the virtual plane, at least partially overlaps a container projected area which is an area of the container projected to the virtual plane from the first direction.

Abstract: A recording apparatus comprising a container to store a sheet of recording medium; a conveyer configured to convey the recording medium in the container; a main tank receiving portion configured to receive a main tank for storing liquid; a sub tank configured to store liquid supplied from the main tank; and a recording head including an ejection surface where ejection openings for ejecting liquid supplied from the sub tank are formed. Each of three projected areas which are an area of the main tank receiving portion, an area of the sub tank, and an area of the recording head, each projected to a virtual plane parallel to a surface of the recording medium contained in the container from a first direction orthogonal to the virtual plane, at least partially overlaps a container projected area which is an area of the container projected to the virtual plane from the first direction.