A liquid discharge apparatus includes a liquid discharge head configured to discharge a liquid, a first wire and a second wire to which a first drive signal and a second drive signal for driving the liquid discharge head is respectively supplied, and a single relay substrate configured to relay the first drive signal and the second drive signal from the first wire and the second wire to the liquid discharge head. The single relay substrate includes a first connector configured to be connected to the first wire, a second connector configured to be connected to the second wire, and a relay connector configured to be connected to a head-side connector of the liquid discharge head. The relay connector outputs, to the head-side connector, the first drive signal supplied from the first wire to the first connector, and the second drive signal supplied from the second wire to the second connector.

A liquid discharge apparatus includes a liquid discharge head configured to discharge a liquid, a first wire and a second wire to which a first drive signal and a second drive signal for driving the liquid discharge head is respectively supplied, and a single relay substrate configured to relay the first drive signal and the second drive signal from the first wire and the second wire to the liquid discharge head. The single relay substrate includes a first connector configured to be connected to the first wire, a second connector configured to be connected to the second wire, and a relay connector configured to be connected to a head-side connector of the liquid discharge head. The relay connector outputs, to the head-side connector, the first drive signal supplied from the first wire to the first connector, and the second drive signal supplied from the second wire to the second connector.

A dot impact printing head for a printing apparatus that performs printing on a medium by repeating transport of the medium in a sub-scanning direction and movement of the dot impact printing head in a main scanning direction that intersects the sub-scanning direction, the dot impact printing head including at least one wire pin row formed as a result of a plurality of wire pins being arranged at a fixed pitch in the sub-scanning direction, in which all of the wire pins that configure the wire pin row are disposed shifted in three or more different positions in the main scanning direction within a range of the same dimension as the pitch.

A dot impact printing head for a printing apparatus that performs printing on a medium by repeating transport of the medium in a sub-scanning direction and movement of the dot impact printing head in a main scanning direction that intersects the sub-scanning direction, the dot impact printing head including at least one wire pin row formed as a result of a plurality of wire pins being arranged at a fixed pitch in the sub-scanning direction, in which all of the wire pins that configure the wire pin row are disposed shifted in three or more different positions in the main scanning direction within a range of the same dimension as the pitch.

A liquid discharge apparatus includes a liquid discharge head configured to discharge a liquid, a first wire and a second wire to which a first drive signal and a second drive signal for driving the liquid discharge head is respectively supplied, and a single relay substrate configured to relay the first drive signal and the second drive signal from the first wire and the second wire to the liquid discharge head. The single relay substrate includes a first connector configured to be connected to the first wire, a second connector configured to be connected to the second wire, and a relay connector configured to be connected to a head-side connector of the liquid discharge head. The relay connector outputs, to the head-side connector, the first drive signal supplied from the first wire to the first connector, and the second drive signal supplied from the second wire to the second connector.

A liquid discharge apparatus includes a discharge head, a drive substrate provided with a signal generation circuit to generate a first and a second signal and an output connector to output the first and second signal, a first and second wire to supply the first and second signal to the discharge head, and a relay substrate to relay the first and second signal from the drive substrate to the first and second wire. The relay substrate includes a relay connector to be connected to the output connector, a first connector to be connected to the first wire and to output the first signal supplied from the output connector to the relay connector to the first wire, and a second connector to be connected to the second wire and to output the second signal supplied from the output connector to the relay connector to the second wire.

A liquid discharge apparatus includes a discharge head, a drive substrate provided with a signal generation circuit to generate a first and a second signal and an output connector to output the first and second signal, a first and second wire to supply the first and second signal to the discharge head, and a relay substrate to relay the first and second signal from the drive substrate to the first and second wire. The relay substrate includes a relay connector to be connected to the output connector, a first connector to be connected to the first wire and to output the first signal supplied from the output connector to the relay connector to the first wire, and a second connector to be connected to the second wire and to output the second signal supplied from the output connector to the relay connector to the second wire.

An inkjet recording apparatus and an inkjet recording method are provided that facilitate designing of units for subsequent treatment in terms of their shapes and/or positions, while suppressing variability in image quality resulting from subsequent treatment. Two or more recording heads are disposed in a staggered arrangement in X and Y directions. The paired units for subsequent treatment are disposed in parallel to each other along the X direction, and the recording heads are interposed between these units. The length of each of the units for subsequent treatment in the X direction is greater than or equal to the ink-dischargeable extent in the X direction of the recording heads in one scan. The recording heads are arranged, so that nozzle groups, from which the droplets of the same color are discharged, are disposed symmetrically with respect to an intermediary line between the paired units for subsequent treatment.

A liquid election head includes a recording element substrate, an electrical wiring substrate configured to supply an electrical signal to the recording element substrate, a plurality of wires electrically connecting a plurality of electrode terminals on the recording element substrate with a plurality of connection terminals on the electrical wiring substrate, and a sealant sealing an electrical connection portion. The plurality of wires form a wire array. At least one of the plurality of wires positioned at one end of the wire array in a wire array direction is shorter than the other wires in the wire array.

A dot impact printing head for a printing apparatus that performs printing on a medium by repeating transport of the medium in a sub-scanning direction and movement of the dot impact printing head in a main scanning direction that intersects the sub-scanning direction, the dot impact printing head including at least one wire pin row formed as a result of a plurality of wire pins being arranged at a fixed pitch in the sub-scanning direction, in which all of the wire pins that configure the wire pin row are disposed shifted in three or more different positions in the main scanning direction within a range of the same dimension as the pitch.