A liquid ejecting head includes a flow path structure having a first coupling flow path, a first head chip having a second coupling flow path that communicates with first nozzles, and a first joint member having a first relay flow path that communicates with the first coupling flow path and the second coupling flow path, in which the first joint member is detachably fixed to the flow path structure so that the first coupling flow path and the first relay flow path are coupled to each other, and the second coupling flow path and the first relay flow path liquid-tightly communicate with each other via an adhesive disposed around an opening of the first relay flow path facing the second coupling flow path.

A liquid ejecting head is mounted on a carriage in which a first positioning hole defined by a first inner surface is provided. The liquid ejecting head includes a first positioning member and a first intermediate member. The first intermediate member includes a first expansion portion being capable of being inserted into a first positioning hole and abutting on the first inner surface by expanding in a radial direction intersecting with an insertion direction of the first expansion portion. The first expansion portion includes a first insertion hole into which the first positioning member is inserted and expands in the radial direction by the first positioning member being inserted into the first insertion hole.

A mounting device for a print head and a printing system allows print heads to be easily changed and easily and reliably adjusted. The mounting device includes a rigid mount and a frame for receiving a print head. The frame is releasably fixed to the rigid mount and includes an adjustment device for adjusting the print head relative to the rigid mount. The adjustment device of the frame includes two solid body joints and two actuators for adjusting the print head in two degrees of freedom, namely in a sliding movement along the rigid mount and a rotary movement about the vertical axis.

A liquid ejecting device includes: a head unit including a first channel member formed with a first channel having a first communication port; and a mounting unit including a positioning part and a second channel member formed with a second channel having a second communication port. The liquid ejecting device is switchable between: a first state in which the head unit is not positioned relative to the mounting unit, and the first communication port and the second communication port are not in communication with each other; and a second state in which the head unit is positioned relative to the mounting unit, and the first communication port and the second communication port are in communication with each other. The liquid ejecting device is shifted from the first state to the second state as the second channel member and the positioning part are moved relative to the head unit.

A liquid ejecting device includes a head unit and a mounting unit. The head unit includes: a first channel member formed with a first channel having an ejection hole; and a first electronic member including a first terminal. The first channel member has an ejection surface in which the ejection hole is open. The mounting unit includes a second electronic member having a plate shape. The second electronic member includes a second terminal. The liquid ejecting device is switchable between: a first state in which the first and second terminals are separated from each other; and a second state in which the first and second terminals are in contact with each other. When the liquid ejecting device is in the second state, the second electronic member extends parallel to the ejection surface and a contact point between the first and second terminals is positioned upward relative to the first channel.

A printing system comprises a sub-frame (5), a print module (8) with printheads (27), a first support unit (30) that is connected to the sub-frame (5), in particular movable in a displacement direction (z) relative to the sub-frame, a substrate holder (2) for supporting a substrate (3), and a positioning mechanism for moving the print module relative to the first support unit to and from a print position. A set of positioning parts (34-36) and positioning references (14-16) is provided that form part of or are connected to the print module (8) respectively the sub-frame (5). The positioning parts (34-36) are engageable with corresponding ones of the positioning references (14-16) for aligning the print module (8) relative to the sub-frame (5) when moved into its print position. The positioning mechanism comprises one or more four-bar linkage mechanisms (32) acting between the print module (8) and the first support unit (30).

A printing system comprises a sub-frame (5), a print module (8) with printheads (27), a first support unit (30) that is connected to the sub-frame (5), in particular movable in a displacement direction (z) relative to the sub-frame, a substrate holder (2) for supporting a substrate (3), and a positioning mechanism for moving the print module relative to the first support unit to and from a print position. A set of positioning parts (34-36) and positioning references (14-16) is provided that form part of or are connected to the print module (8) respectively the sub-frame (5). The positioning parts (34-36) are engageable with corresponding ones of the positioning references (14-16) for aligning the print module (8) relative to the sub-frame (5) when moved into its print position. The positioning mechanism comprises one or more four-bar linkage mechanisms (32) acting between the print module (8) and the first support unit (30).

A print head assembly including a print head unit, a cooling duct, and a blower arranged to pass a gaseous cooling medium through the cooling duct. The cooling duct has an elongated closed hollow cross-section bounded on at least one side by a flat wall. The print head unit is attached to the flat wall outside of the cooling duct such that the print head unit is cooled by the gaseous medium passing through the cooling duct via thermal contact through the flat wall of the cooling duct.

A mounting assembly (1) for mounting a plurality of inkjet print modules in an adjoining relationship along a longitudinal direction of the mounting assembly (1) comprises a linear guide (13, 14) extending in the longitudinal direction for supporting the plurality of modules such that the modules are movable along the linear guide (13, 14). It further comprises for each of the plurality of modules a carrier (100.1 . . . 4) for mounting an inkjet print head including an array of nozzles formed on a nozzle face, wherein the carriers (100.1 . . . 4) are supported on the linear guide (13, 14) such that they are movable along the linear guide (13, 14), wherein in a mounted configuration of the inkjet print heads their nozzle face is arranged on a first side of the linear guide (13, 14). Each carrier (100.1 . . . 4) comprises a first adjustment mechanism for adjusting a distance of the carriers 100.1 . . . 4) of two adjoining modules of the plurality of modules, the first adjustment mechanism comprising a first control member having an operating section for mechanically cooperating with a tool for adjusting the distance. Each carrier (100.1 . . . 4) further comprises a second adjustment mechanism for adjusting an angle position of the inkjet print head mounted to the carrier (100.1 . . . 4) with respect to an axis perpendicular to the longitudinal direction, the second adjustment mechanism comprising a second control member having an operating section for mechanically cooperating with a tool for adjusting the angle position. The operating sections of the control members of the first and of the second adjustment mechanism are accessible from the first side of the linear guide (13, 14).

A liquid ejecting head includes a pressure generating unit in order to eject liquid from a nozzle that is provided on a nozzle surface, a case in order to accommodate the pressure generating unit, and a guide portion that is provided on a side surface of the case, in which in a case of being viewed from a first direction orthogonal to the nozzle surface, the guide portion has projecting portions facing one end side in a second direction along the nozzle surface, and recessed portions facing the other end side in the second direction.