Examples include a fluid ejection die having a die length and a die width. The fluid ejection die may include a plurality of nozzles arranged along the die length and a die width. The plurality of nozzles is arranged such that at least one pair of neighboring nozzles are positioned at different die width positions along the width of the fluid ejection die. The example fluid ejection die further includes a plurality of ejection chambers including a respective ejection chamber fluidically coupled to each respective nozzle. The fluid ejection die further includes an array of fluid feed holes. The array of fluid feed holes includes a first respective fluid feed hole fluidically coupled to each respective ejection chamber, and the array of fluid feed holes includes a second respective fluid feed hole fluidically coupled to each respective ejection chamber.

Examples include a fluid ejection die having a die length and a die width. The fluid ejection die may include a plurality of nozzles arranged along the die length and a die width. The plurality of nozzles is arranged such that at least one pair of neighboring nozzles are positioned at different die width positions along the width of the fluid ejection die. The example fluid ejection die further includes a plurality of ejection chambers including a respective ejection chamber fluidically coupled to each respective nozzle. The fluid ejection die further includes an array of fluid feed holes. The array of fluid feed holes includes a first respective fluid feed hole fluidically coupled to each respective ejection chamber, and the array of fluid feed holes includes a second respective fluid feed hole fluidically coupled to each respective ejection chamber.

A head unit includes: a base extended in a first direction; a first head which is fixed to the base and includes a first nozzle plate; a second head which is fixed to the base, includes a second nozzle plate, and is configured to form dots in a line in the first direction with the first head; a first corrector configured to adjust arrangement of the first head with respect to the base, and disposed at a first side in a second direction orthogonal to the first direction with respect to the first head; and a second corrector configured to adjust arrangement of the second head with respect to the base, and disposed at a second side opposite to the first side in the second direction with respect to the second head. The first and second nozzle plates are disposed between the first and second correctors in the second direction.

A head unit includes: a base extended in a first direction; a first head which is fixed to the base and includes a first nozzle plate; a second head which is fixed to the base, includes a second nozzle plate, and is configured to form dots in a line in the first direction with the first head; a first corrector configured to adjust arrangement of the first head with respect to the base, and disposed at a first side in a second direction orthogonal to the first direction with respect to the first head; and a second corrector configured to adjust arrangement of the second head with respect to the base, and disposed at a second side opposite to the first side in the second direction with respect to the second head. The first and second nozzle plates are disposed between the first and second correctors in the second direction.

Provided is an attachment member that prevents the misalignment of a plurality of recording heads caused by rotation in attaching the recording heads to a head module which constitutes a head unit of an inkjet recording device.

Provided is an attachment member that prevents the misalignment of a plurality of recording heads caused by rotation in attaching the recording heads to a head module which constitutes a head unit of an inkjet recording device.

This invention relates to a print bar structure, a printing apparatus and a method for printing on an outer surface of an object comprising at least one cylindrical portion, particularly a cylindrical and/or conical container. The invention also relates to a manufacturing facility and method for manufacturing containers. The printing apparatus typically comprises a print bar structure, a plurality of print heads attachable to the print bar structure, a curing device, and a displacement assembly operatively attachable to the container. The print bar structure at least partly defines a print zone, wherein the print heads and the curing device is operatively disposed in the print zone. The displacement assembly is operable to rotate object about an axis substantially aligned with the central axis relative to the plurality of print heads in the print zone such that fluid is deposited onto the object during rotation of the object.

This invention relates to a print bar structure, a printing apparatus and a method for printing on an outer surface of an object comprising at least one cylindrical portion, particularly a cylindrical and/or conical container. The invention also relates to a manufacturing facility and method for manufacturing containers. The printing apparatus typically comprises a print bar structure, a plurality of print heads attachable to the print bar structure, a curing device, and a displacement assembly operatively attachable to the container. The print bar structure at least partly defines a print zone, wherein the print heads and the curing device is operatively disposed in the print zone. The displacement assembly is operable to rotate object about an axis substantially aligned with the central axis relative to the plurality of print heads in the print zone such that fluid is deposited onto the object during rotation of the object.

A supporting section is disposed to confront an ejection surface and supports a recording medium. A first tank is mounted on a first-tank mount section. A liquid conveying section conveys liquid to a liquid ejecting head. A receiving section receives liquid ejected from the liquid ejecting head. A waste-liquid conveying section conveys liquid to the waste-liquid tank. A first casing holds the liquid ejecting head, the first-tank mount section, and the liquid conveying section. A second casing holds the supporting section, the receiving section, the waste-liquid tank, and the waste-liquid conveying section. The first casing is connected with the second casing such that the first casing is movable relative to the second casing. The first casing takes a first position at which the ejection surface confronts the supporting section and a second position at which the ejection surface is farther away from the supporting section than at the first position.

A head alignment apparatus for determining a reference position using position synchronization and aligning a plurality of head modules according to the reference position, and a substrate treating system including the same are provided. The head alignment apparatus may include, a reference position determining unit for determining a first reference position of a head transfer, in which a plurality of inkjet head modules are installed; and a mounting position determining unit for determining a second reference position of the inkjet head module based on the first reference position so that the inkjet head module can be moved from a current position to a second reference position, wherein the reference position determining unit determines a first reference position using a first image sensor installed on the same plane as the inkjet head module and a second image sensor installed facing the inkjet head module.