A printer having a carriage (10) movable along a guide beam (12) in a main scanning direction (y), and a number of print heads (14) mounted on the carriage (10), each print head having a plurality of printing elements (16), wherein the carriage (10) has at least two sub-carriages (38) each of which carries at least one of the print heads (14) and is independently guided at the guide beam (12), and the sub-carriages (38) are coupled for joint movement in the main scanning direction (y) but are movable relative to one another in a sub-scanning direction (x) normal to the main scanning direction (y).

Provided are a head module support mechanism, a liquid jet head, and a liquid jet system which can ensure a defined position accuracy in movement of a head module. Provided is a head module support mechanism (36) that supports a head module of a liquid jet head including one or more head modules, the head module support mechanism including: a fixing portion (42) that is joined to a frame of the liquid jet head; a movement portion (40) that supports the head module and is supported to be movable in a first direction with respect to the fixing portion; a first direction movement portion that moves the movement portion that supports the head module in the first direction with respect to the fixing portion; and a guide portion that guides the movement portion with respect to the fixing portion and to which a rolling guide (200) extending in the first direction is applied.

A method of manufacturing a printer carriage comprises providing a printhead carrier component to receive a plurality of printheads according to a predefined printhead layout, providing a frame component, and attaching the printhead carrier component to the frame component. The printhead carrier component and the frame component are distinct components, which can be separately manufactured.

Embodiments of the present invention describe a thermal print head (TPH) that is easily replaced in a slot on the side of a thermal printing device using a push/eject mechanism. Other embodiments of the present invention describe a thermal printing device where the print pressure is easily adjusted for different types of printing media (labels) by turning a turnknob. In preferred embodiments, the turnknob has three print pressure settings, high, medium, and low.

There is provided an ink jet recording apparatus that can correct bending of an ink jet head with a compact structure. First supporting frames 122 that support ink jet heads 110C, 110M, 110Y, and 110K and second supporting frames 170 that support a part of ink supply sections supplying ink to the ink jet heads 110C, 110M, 110Y, and 110K are mounted on a mount 300. The first supporting frames 122 are mounted on the mount 300 while both end portions of the first supporting frames 122 in a longitudinal direction are supported. Each of the second supporting frames 170 is provided with a bending correction mechanism 340 that applies a pressing force to the first supporting frame 122 to correct the bending of the first supporting frame 122.

A droplet ejection device includes an ink supply unit configured to supply ink, a replaceable multi-nozzle head arranged away from the ink supply unit and having a plurality of droplet ejection nozzles configured to eject droplets including the ink by an electrostatic ejection method, a mounting unit configured to mount the multi-nozzle head, an inspection unit configured to inspect an inclination of the multi-nozzle head mounted on the mounting unit, and, an adjusting unit configured to adjust the inclination of the multi-nozzle head based on an inspection result of the multi-nozzle head.

A printer includes a print head fastening facing a medium support surface; a scanning print carriage being movable along a guide in a scanning direction (Y); and a transporter for transporting the medium in a transport direction (X). The printer includes a suspension structure connecting the print head fastening to the scanning print carriage while allowing movement of the print head fastening with respect to the scanning print carriage in a direction (X) parallel to the transport direction. The suspension structure is elastically deformable to allow for the movement in said direction (X).

A printer includes a print head fastening facing a medium support surface; a scanning print carriage being movable along a guide in a scanning direction (Y); and a transporter for transporting the medium in a transport direction (X). The printer includes a suspension structure connecting the print head fastening to the scanning print carriage while allowing movement of the print head fastening with respect to the scanning print carriage in a direction (X) parallel to the transport direction. The suspension structure is elastically deformable to allow for the movement in said direction (X).

An object is to provide a liquid ejection head that can be mounted on a liquid ejection apparatus easily. The liquid ejection head comprises: a storing unit configured to store liquid; an element substrate having an ejection port surface in which an ejection port for ejecting liquid stored in the storing unit is formed; and an electrical circuit substrate electrically relaying a liquid ejection apparatus and the element substrate. In a posture in which the liquid ejection head is mounted on the liquid ejection apparatus, the electrical circuit substrate is located above the element substrate in the vertical direction, on the electrical circuit substrate, a connector for electrically connecting with an electrical connecting member comprised by the liquid ejection apparatus is provided, and on the electrical circuit substrate, the connector is provided only on a top surface facing in a direction opposite to the ejection port surface.

A holder assembly that holds a head module including an inkjet head on a mounting table, the holder assembly including a pressure member and an operation member. The pressure member presses a portion of the head module adjacent to the mounting table. The operation member transitions the pressure member from a first state to a second state when work of mounting the head module on the mounting table is performed. In the first state, the pressing by the pressure member is deactivated, and in the second state, the pressing by the pressure member is activated. The operation member exists outside an enveloping surface of the head module during the work of mounting the head module on the mounting table.