An inkjet recording device includes a head base having a mounting space, a head unit having a recording head that discharges ink and being inserted within the mounting space from one side of a specific direction, a ball plunger that presses the head unit, inserted in the mounting space, in a direction orthogonal to the specific direction, and the head unit is secured in the mounting space by the pressing force of the ball plunger.

A printing unit includes a plurality of ink jet parts and an X-axis linear motion mechanism that moves each of the plurality of ink jet parts in the same main scanning direction. The X-axis linear motion mechanism moves the ink jet part involved in printing the workpiece among the plurality of ink jet parts so as to face the surface of the workpiece and moves the remaining ink jet part on the one X-axis linear motion mechanism so as to retreat from the surface of the workpiece. As a result, a printing apparatus that is capable of printing accurately onto the workpiece having a three-dimensional curved surface is provided.

A liquid discharge apparatus includes a discharge head having a nozzle row, a conveyor is configured to convey a discharge target medium, a head mover configured to move the discharge head in an orthogonal direction, a head rotator configured to rotate the discharge head, and circuitry configured to perform a position setting operation to cause the head mover to move the discharge head to a position in the orthogonal direction, a discharging operation to cause the discharge head to discharge a liquid at the position, a medium conveying operation to cause the conveyor to convey the discharge target medium, and a changing operation to cause the head mover to change the position of the discharge head, and cause the head rotator to rotate the discharge head based on a length of droplets of the liquid landed on the discharge target medium by the above-described operations.

A recording-head position adjustment mechanism adjusts a position of a recording head. The recording-head position adjustment mechanism includes a first support, a second support, and an adjuster. The first support supports a first end of the recording head in a longitudinal direction of the recording head. The second support supports a second end of the recording head in the longitudinal direction. The adjuster moves the second support with respect to the first support in a transverse direction intersecting the longitudinal direction to adjust an inclination of the recording head.

The object of the invention, which relates to a method for printing a substrate by means of inkjet printing, is to enable precise printing of a landing point matrix, which is displaced, rotated, or distorted, particularly not linearly distorted, as compared to an ideally orthogonal landing point matrix, with less complexity. Said object is achieved in that the lateral resolution is selected to be large enough that the smallest distance between nozzle lines is less than the minimum distance between the landing zone rows, and that, with a variation, specified by the substrate, of the distance of adjacent landing zone rows between various landing zone lines (distortion), the position of the landing zones of a landing zone line is determined relative to the nozzle lines and consequently only the printhead nozzles having a nozzle line intersecting a landing zone are actuated according to a nozzle actuation scheme and the corresponding landing zone type.

Disclosed herein is a technique that enables a carriage printer to reduce precision in a media conveyor by improving mobility of the carriage. The carriage includes a mobile jetplate that adjusts the position of the printheads within the carriage. The mobile jetplate includes multiple motors that enable shifts in an axis matching the axis of the media. Operating the motors of the jetplate at different locations or at different intensities causes the jetplate to skew and achieve mobility of multiple axes. A set of sensors monitor media skew and shifts of the mobile jetplate are able to compensate for that skew. An additional set of motors shift the carriage to compensate for deformation of the beam that the carriage shuttles along.

An alignment of jet holes of a liquid jet head is smoothly performed. A liquid jet head according to an embodiment of the present disclosure includes a nozzle section having a jet hole for liquid, a support member configured to support the nozzle section, and a position adjustment mechanism configured to adjust a position of the jet hole with respect to a carriage. The position adjustment mechanism includes a reference member a position of which with respect to the carriage is fixable, a position adjustment member which is coupled to the support member, and is configured to push the reference member to change a relative distance with respect to the reference member to thereby displace the support member on the carriage, and an intermediary member intervening between the reference member and the position adjustment member. The intermediary member is attached to either one of the reference member and the position adjustment member to form a first pressure-receiving surface facing to a displacement direction of the support member, and the other of the reference member and the position adjustment member has contact with the first pressure-receiving surface.

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.

The ink jet device is provided with a plurality of ink jet heads including a plurality of nozzles disposed linearly with each other at intervals in a predetermined longitudinal direction and ejecting ink in different regions each other in the printing width direction; and a position adjusting mechanism performing rotating operation of changing the intervals in the printing width direction of the nozzles by rotating the plurality of ink jet heads around an axis perpendicular to the print surface of the print object, and performing a shifting operation of shifting at least one of the plurality of ink jet heads in the printing width direction.

A single pass inkjet printer that utilizes a modular printing system with one or more self-contained printing modules, where each printing module is easy to remove and replace from a large printing machine, thus resulting in an overall system that is easy to service and maintain Each module is a self-contained printer including an ink supply, printhead drive electronics, and printhead assembly in order to provide one color or fluid of inkjet printing capability. Each module includes a precise three-point compliant self-aligning mount system to obtain accurate printhead positioning, and a unique integrated printhead tending system that includes a compact movable vacuum knife for cleaning the printheads, and a printhead capping station for sealing and protecting the printheads from the ambient environment when not in use.