A device for automatic adjustment of print heads in a printing machine is presented. The device can include at least one motor and a controller. The motor can drive at least one drive element for at least one retaining element, and drive at least one drive element for at least one adjustment element. The controller can control the at least one motor to: drive the at least one drive element to loosen the at least one retaining element, drive the at least one drive element to position the at least one adjustment element at a predetermined nominal value to position the adjustment element, and drive the at least one drive element to tighten the at least retaining element.

A display panel manufacturing system includes a substrate providing module configured to provide a substrate including an active region on which thin-film transistors are disposed, and a peripheral region adjacent to the active region, a test substrate providing module configured to provide a test substrate, an organic film forming module configured to form an ink pattern on each of the substrate and the test substrate, the organic film forming module including a plurality of heads, each of which is configured to drop an ink, an offset inspection module configured to inspect the ink pattern on the substrate, a pattern inspection module configured to inspect the ink pattern on the test substrate, and a droplet inspection module configured to inspect an ink, which is dropped from a head selected from the heads.

An inkjet recording apparatus includes recording heads and a head base. The recording heads include a first recording head, a second recording head, a third recording head, and a fourth recording head. The first to fourth recording heads each include three segment recording heads. The segment recording heads eject ink on to paper. The head base supports the 12 segment recording heads. One segment recording head among the 12 segment recording heads is selected as a reference head. The segment recording heads other than the reference head among the 12 segment recording heads are arranged such that longitudinal directions of the segment recording heads other than the reference head are parallel to a longitudinal direction of the reference head. The head base is arranged such that the longitudinal direction of the reference head is orthogonal to a conveyance direction of the paper.

A head device includes a head and a holder. The head has a discharge port to discharge droplets to a medium. The holder is configured to hold the head and be rotatable about a first rotation shaft extending in a discharge direction of the droplets and rotatable about a second rotation shaft extending in a longitudinal direction of the head.

A display panel manufacturing system includes a substrate providing module configured to provide a substrate including an active region on which thin-film transistors are disposed, and a peripheral region adjacent to the active region, a test substrate providing module configured to provide a test substrate, an organic film forming module configured to form an ink pattern on each of the substrate and the test substrate, the organic film forming module including a plurality of heads, each of which is configured to drop an ink, an offset inspection module configured to inspect the ink pattern on the substrate, a pattern inspection module configured to inspect the ink pattern on the test substrate, and a droplet inspection module configured to inspect an ink, which is dropped from a head selected from the heads.

A recording-head position adjustment mechanism includes a beam to suspend a recording head that discharges droplets so that the recording head is drawable out in a predetermined direction; a first supporter disposed at one end of the beam in the predetermined direction and having a support shaft to support the beam; a second supporter disposed at another end of the beam in the predetermined direction with the beam interposed between the first supporter and the second supporter. The second supporter is attached with an adjuster via which the second supporter supports the beam. The adjuster includes a coarse-adjustment shaft member and a fine-adjustment shaft member that are manually rotatable independent of each other. The coarse-adjustment shaft member coarsely adjusts a rotation angle of the beam at which the beam rotates around the support shaft by manual rotation. The fine-adjustment shaft member finely adjusts the rotation angle of the beam.

Described is an assembly of a guiding structure and a print head carriage, the print head carriage comprising a base carriage controllably movable relative to the guiding structure along a first horizontal axis, the print head carriage comprising a sub-carriage controllably movable relative to the base carriage along a second horizontal axis. The print head carriage comprises an intermediate carriage controllably movable relative to the base carriage along a vertical axis, the sub-carriage mounted on the intermediate carriage for moving together with the intermediate carriage relative to the base carriage, the sub-carriage controllably movable relative to the intermediate carriage along the second horizontal axis.

A recording head unit includes a line-head module including a plurality of recording heads to discharge a liquid, and a main plate to which the line-head module is mounted. The line-head module includes a first adjustment portion to adjust a position of the line-head module relative to the main plate in a longitudinal direction of the line-head module, and a second adjustment portion to adjust a position of the line-head module relative to the main plate in a rotational direction of the line-head module.

A method for manufacturing an organic EL display panel, including: forming first electrodes over a substrate; defining, above the substrate, pixel formation regions lining up in a row direction and a column direction, by forming banks over the substrate; applying ink to each pixel formation region by causing a plurality of nozzles lining up in a straight line to discharge the ink to the pixel formation regions while displacing the nozzles relative to the substrate in a scanning direction; drying the ink to form functional layers in the pixel formation regions; and forming a second electrode at a position covering the pixel formation regions. In the application of ink, an angle between the scanning direction and the row direction is set to more than 0 and less than 90 and each nozzle applies the ink across a plurality of rows of the pixel formation regions.

A liquid discharge apparatus includes a liquid discharge head including a nozzle face in which a nozzle is formed and configured to discharge a liquid, a carriage on which the liquid discharge head is mounted, and a guide shaft configured to hold the carriage movably. The liquid discharge apparatus further includes a driver configured to move the carriage, and a coupling between the carriage and the driver. The coupling is disposed on an axis of the guide shaft in a direction orthogonal to the axis of the guide shaft.