A liquid ejecting head includes a flow passage, an energy producing element, and a nozzle. A direction in which a portion which is a part of the flow passage and with which the nozzle is in communication extends is defined as a first direction. A direction in which the liquid is ejected from the nozzle and which is orthogonal to the first direction is defined as a second direction. A direction which is orthogonal to both the first direction and the second direction is defined as a third direction. Given this definition, the nozzle includes a first portion and a second portion, the second portion being located closer to the flow passage along the second direction than the first portion is. The cross-sectional area size of the first portion when viewed in the second direction is smaller than the cross-sectional area size of the second portion when viewed in the second direction. The width, in the third direction, of an overlapping portion that is a part of the second portion and is included in a first region is greater than the width, in the third direction, of a non-overlapping portion that is a part of the second portion and is included in a second region. The first region is a region where the second portion overlaps with the first portion in the first direction. The second region is a region where the second portion does not overlap with the first portion in the first direction.

A liquid discharge head includes a head body configured to discharge a liquid, a head cover on the head body, a head cover covering at least a part of the head body, the head cover disposed outside the head body; a liquid supply port on an upper surface of the head cover, the liquid supply port configured to supply the liquid to the head body, an electrical connection on a side surface of the head cover. The head cover includes a protruding part protruding from the upper surface of the head cover, the protruding part is on a side end of the upper surface of the head cover adjacent to the side surface of the head cover on which the electrical connection is disposed, and the protruding part is higher than another part of the upper surface of the head cover with respect to a lower end surface of the head body.

A liquid discharge device including a first drive circuit, a second drive circuit, a third drive circuit, a fourth drive circuit, a connector coupled to a discharge head, and a substrate that includes a first wiring which couples the connector and the first drive circuit outputting a first drive signal, a second wiring which couples the connector and the second drive circuit outputting a second drive signal, a third wiring which couples the connector and the third drive circuit outputting a third drive signal, and a fourth wiring which couples the connector and the fourth drive circuit outputting a fourth drive signal, in which the first wiring is shorter than the second wiring, the third wiring, and the fourth wiring, and the fourth wiring is longer than the first wiring, the second wiring, and the third wiring.

A liquid discharge device includes a first discharge portion, a second discharge portion, a first drive circuit outputs a first drive signal that the first discharge portion discharges a liquid having a first discharge amount, a second drive circuit outputs a second drive signal that the first discharge portion does not discharge a liquid, a third drive circuit outputs a third drive signal that the second discharge portion discharges a liquid having a second discharge amount, and a fourth drive circuit outputs a fourth drive signal that the second discharge portion does not discharge the liquid, in which the third drive circuit is located between the first drive circuit and the second drive circuit along the one direction, and a shortest distance between the fourth drive circuit and the second drive circuit is shorter than a shortest distance between the fourth drive circuit and the third drive circuit.

A liquid discharge device including a substrate that includes a first through-hole, a first drive circuit, a second drive circuit, a third drive circuit, a metal frame, and a first screw that is inserted through the first through-hole and attaches the metal frame to the substrate, in which the first drive circuit outputs a first drive signal, the second drive circuit outputs a second drive signal, the third drive circuit outputs a third drive signal, the first drive circuit, the second drive circuit, and the third drive circuit are located side by side in an order of the first drive circuit, the second drive circuit, and the third drive circuit on the substrate along one direction, and the first through-hole is located between the first drive circuit and the second drive circuit in the one direction.

A printing apparatus and a method of providing printing apparatus are provided. A printing apparatus according to at least one embodiment of the present disclosure includes a base panel or head base, at least one or more head packs installed on the head base, a head pack holder installed on each of the head packs and configured to handle and fix the head pack, and a fastening structure configured to mount the head pack holder to the head packs.

A liquid discharge head includes a head body, a plurality of driver ICs, a flexible substrate, and a wiring board. The head body includes a discharge hole configured to discharge a liquid. The plurality of driver ICs controls drive of the head body. The plurality of driver ICs are mounted at the flexible substrate, and the flexible substrate is electrically connected to the head body. The wiring board includes a plurality of connectors. In addition, the flexible substrate includes: a plurality of protruding portions configured to protrude in the same direction and each including a tip portion to be inserted into corresponding one of the plurality of connectors; and a slit formed between the protruding portions adjacent to each other and extending up to a region between the driver ICs adjacent to each other.

Example systems are disclosed for printing an image. In one example, the system includes a printhead assembly including a plurality of printheads to deposit printing fluid on a print media as the printhead assembly is moved across the print media along an arcuate path. In addition, the system includes a controller assembly communicatively coupled to the printhead assembly, wherein the controller assembly is to adjust a timing of printing fluid deposition onto the print media from the plurality of printheads based on relative positions and orientations of the printheads along the arcuate path.

A head module includes: a head including: a nozzle plate having a nozzle from which a liquid is to be discharged; a channel substrate including an individual channel communicating with the nozzle, the nozzle plate bonded to a first bonding surface of the channel substrate; and a cover covering at least one side of a discharge surface of the nozzle plate of the head. The channel substrate has a size larger than the nozzle plate, the cover has a second bonding surface bonded to the first bonding surface of the channel substrate at an outer region of the nozzle plate with an adhesive, the discharge surface of the nozzle plate is liquid-repellent, and the first bonding surfaces of the channel substrate and the second bonding surface of the cover are lyophilic.

A liquid ejecting head including a plurality of nozzles, a row of individual flow paths that includes a plurality of individual flow paths arranged in parallel along a second axis orthogonal to the first axis when viewed in a direction of the first axis, and a common liquid chamber that is commonly in communication with the plurality of individual flow paths. In the liquid ejecting head, the plurality of individual flow paths include a first individual flow path and a second individual flow path that are adjacent to each other in the row of individual flow paths, and the level of a first opening that is a connection port between the common liquid chamber and the first individual flow path and the level of a second opening that is a connection port between the common liquid chamber and the second individual flow path are different.