The present disclosure provides a liquid ejection device to which an additional head can be attached and which suppresses a reduction in print quality. The liquid ejection device includes a main scanning drive portion that transports, in a main scanning direction, a carriage on which are mounted a base printing head that ejects ink for base printing onto a print medium, and a color printing head that ejects at least two colors of ink, from yellow, magenta, cyan, and black, onto the print medium, the base printing head and the color printing head being separated from each other in the sub-scanning direction. Between the base printing head and the color printing head on the carriage, the liquid ejection device includes an additional head attachment portion to which the additional head can be added.

The present disclosure provides a liquid ejection device to which an additional head can be attached and which suppresses a reduction in print quality. The liquid ejection device includes a main scanning drive portion that transports, in a main scanning direction, a carriage on which are mounted a base printing head that ejects ink for base printing onto a print medium, and a color printing head that ejects at least two colors of ink, from yellow, magenta, cyan, and black, onto the print medium, the base printing head and the color printing head being separated from each other in the sub-scanning direction. Between the base printing head and the color printing head on the carriage, the liquid ejection device includes an additional head attachment portion to which the additional head can be added.

In example implementations, a method is provided, which may include providing a carrier, applying a thermal release tape over the carrier, attaching a print head die, a drive integrated circuit (IC) and an interposer on the thermal release tape, wherein the print head die comprises ink feed holes formed in a back surface of the print head die, encapsulating the print head die, the drive IC and the interposer with an epoxy molded compound (EMC), removing the carrier and the thermal release tape, and forming a slot over an area of the EMC that covers the ink feed holes, wherein the ink feed holes are to be fluidically coupled to the slot.

In example implementations, a method is provided, which may include providing a carrier, applying a thermal release tape over the carrier, attaching a print head die, a drive integrated circuit (IC) and an interposer on the thermal release tape, wherein the print head die comprises ink feed holes formed in a back surface of the print head die, encapsulating the print head die, the drive IC and the interposer with an epoxy molded compound (EMC), removing the carrier and the thermal release tape, and forming a slot over an area of the EMC that covers the ink feed holes, wherein the ink feed holes are to be fluidically coupled to the slot.

An image forming apparatus includes a head, processing circuitry, and a reader. The head includes a first nozzle, a second nozzle, and a third nozzle at a position different from the first nozzle in a conveyance direction of a recording medium. The circuitry controls relative movement of the medium and the head along a main scanning direction and relative movement of a conveyance amount between the medium and the head along the conveyance direction. The circuitry controls the head to form a first test pattern with color ink discharged from the first nozzle, form a second test pattern with color ink discharged from the third nozzle, and form a mask image overlapping on or under the first pattern and overlapping on or under the second pattern with base ink discharged from the second nozzle. The reader reads positions of the first pattern and the second pattern on the medium.

An image forming apparatus includes a head, processing circuitry, and a reader. The head includes a first nozzle, a second nozzle, and a third nozzle at a position different from the first nozzle in a conveyance direction of a recording medium. The circuitry controls relative movement of the medium and the head along a main scanning direction and relative movement of a conveyance amount between the medium and the head along the conveyance direction. The circuitry controls the head to form a first test pattern with color ink discharged from the first nozzle, form a second test pattern with color ink discharged from the third nozzle, and form a mask image overlapping on or under the first pattern and overlapping on or under the second pattern with base ink discharged from the second nozzle. The reader reads positions of the first pattern and the second pattern on the medium.

A recording device includes: a first nozzle group including a plurality of nozzles configured to discharge, to a medium, a first dot that is a dot of a reaction liquid; a second nozzle group including a plurality of nozzles configured to discharge, to the medium to which the reaction liquid is discharged, a second dot that is a dot of ink containing a color material that coagulates with the reaction liquid; and a control unit configured to control discharging of the first dot by the first nozzle group and discharging of the second dot by the second nozzle group, in which the control unit controls arrangement, on the medium, of the first dot discharged by the first nozzle group so as to be more regular than arrangement, on the medium, of the second dot discharged by the second nozzle group.

A recording device includes: a first nozzle group including a plurality of nozzles configured to discharge, to a medium, a first dot that is a dot of a reaction liquid; a second nozzle group including a plurality of nozzles configured to discharge, to the medium to which the reaction liquid is discharged, a second dot that is a dot of ink containing a color material that coagulates with the reaction liquid; and a control unit configured to control discharging of the first dot by the first nozzle group and discharging of the second dot by the second nozzle group, in which the control unit controls arrangement, on the medium, of the first dot discharged by the first nozzle group so as to be more regular than arrangement, on the medium, of the second dot discharged by the second nozzle group.

Systems and methods are provided for reviewing printed jobs. One embodiment is a system that includes a print review device. The print review device includes a memory that stores data which indicates whether regions along a width of print media marked by a printer are flagged as bypassable, and a controller configured to determine printhead conditions within regions that have not been flagged, associate each printhead condition with a corresponding region, and to generate a report with notifications of printhead conditions within each region that has not been flagged, while foregoing determination of printhead conditions in regions that have been flagged.

A liquid surface imaging device includes an irradiator including a plurality of lightings, the irradiator configured to irradiate a liquid surface in a nozzle of a liquid discharge head with lights emitted from the plurality of lightings, and an imaging device configured to image the liquid surface. The plurality of lightings is arranged point-symmetrically with a center of the irradiator as a point of symmetry.