A pagewide printhead for printing redundantly in four colors. First and second rows of printhead chips are mounted on a common ink manifold having four ink supply channels for supplying four colors of ink to the first and second rows of printhead chips. Dedicated ink outlets interconnect one ink supply channel of the ink manifold with a pair of redundant nozzle rows in each printhead chip.

A liquid discharge head according to an embodiment includes a head body having a first surface configured to discharge a liquid and a second surface facing the first surface, a drive IC positioned away from the second surface of the head body, and a head cover configured to cover at least the second surface of the head body while housing the drive IC. The head cover includes a top plate facing the second surface of the head body and a first side plate extending in one direction that is a direction from the top plate toward the second surface, the first side plate includes a first portion that is in contact with the drive IC, and that extends in the one direction, and a second portion positioned in a portion closer to the second surface than the first portion, and the second portion includes a diameter expanding portion having a diameter that expands toward the second surface.

A liquid discharge head according to an embodiment includes a head body having a first surface configured to discharge a liquid and a second surface facing the first surface, a drive IC positioned away from the second surface of the head body, and a head cover configured to cover at least the second surface of the head body while housing the drive IC. The head cover includes a top plate facing the second surface of the head body and a first side plate extending in one direction that is a direction from the top plate toward the second surface, the first side plate includes a first portion that is in contact with the drive IC, and that extends in the one direction, and a second portion positioned in a portion closer to the second surface than the first portion, and the second portion includes a diameter expanding portion having a diameter that expands toward the second surface.

A single pass inkjet printer that utilizes a modular printing system with one or more self-contained printing modules, where each printing module is easy to remove and replace from a large printing machine, thus resulting in an overall system that is easy to service and maintain Each module is a self-contained printer including an ink supply, printhead drive electronics, and printhead assembly in order to provide one color or fluid of inkjet printing capability. Each module includes a precise three-point compliant self-aligning mount system to obtain accurate printhead positioning, and a unique integrated printhead tending system that includes a compact movable vacuum knife for cleaning the printheads, and a printhead capping station for sealing and protecting the printheads from the ambient environment when not in use.

An embodiment of the present invention is a printing apparatus including: a printing head that includes a nozzle ejecting ink for printing on a printing medium conveyed in a conveyance direction; a carriage on which the printing head is mounted and that reciprocally moves in a main scanning direction; a sliding member attached to the carriage such that the carriage can change a position in a vertical direction; and a guide member that includes a first surface with which the sliding member is brought into contact and a second surface as a back surface of the first surface and guides the movement of the main scanning direction of the carriage, in which the sliding member includes a first regulation unit facing the second surface in a position away from the second surface at a predetermined distance.

An embodiment of the present invention is a printing apparatus including: a printing head that includes a nozzle ejecting ink for printing on a printing medium conveyed in a conveyance direction; a carriage on which the printing head is mounted and that reciprocally moves in a main scanning direction; a sliding member attached to the carriage such that the carriage can change a position in a vertical direction; and a guide member that includes a first surface with which the sliding member is brought into contact and a second surface as a back surface of the first surface and guides the movement of the main scanning direction of the carriage, in which the sliding member includes a first regulation unit facing the second surface in a position away from the second surface at a predetermined distance.

A recording apparatus includes a recording portion, a liquid container portion containing a liquid to be supplied to the recording portion, a body in which the recording portion and the liquid container portion are mounted, and a housing that houses the body. The body can be changed in position between a closed position and an open position in a position-change direction intersecting with a vertical direction. The body, when located at the closed position, is housed inside the housing. The body, when located at the open position, protrudes from the housing in a first position-change direction of the position-change direction. The liquid container portion includes a container space containing the liquid to be supplied to the recording portion, and a liquid inlet through which the liquid can be poured into the container space. The liquid inlet is exposed when the body is located at the open position.

A recording apparatus includes a recording portion, a liquid container portion containing a liquid to be supplied to the recording portion, a body in which the recording portion and the liquid container portion are mounted, and a housing that houses the body. The body can be changed in position between a closed position and an open position in a position-change direction intersecting with a vertical direction. The body, when located at the closed position, is housed inside the housing. The body, when located at the open position, protrudes from the housing in a first position-change direction of the position-change direction. The liquid container portion includes a container space containing the liquid to be supplied to the recording portion, and a liquid inlet through which the liquid can be poured into the container space. The liquid inlet is exposed when the body is located at the open position.

A print head assembly for a media processing device comprises: a print head including an interface and a latch receiver on an upper surface of the print head; and a print head carrier including: (i) a base plate having an opening to receive the latch receiver therethrough when the print head is positioned at a lower surface of the base plate; (ii) an adapter to engage with the interface of the print head; and (iii) a latch bar on an upper surface of the base plate, the latch bar slideable between a first position to engage with the latch receiver and lock the print head to the base plate, and a second position to disengage from the latch receiver and release the print head from the base plate.

An eccentric wheel and an inkjet printer including the eccentric wheel are provided. The eccentric wheel includes two groups of eccentric wheel bodies, mounted on a base of a trolley and configured to drive a print head to move backward and forward and move leftward and rightward in a print head groove. A distance from an outer edge to a rotation center of each of the eccentric wheel bodies is gradually changed. The outer edge of each of the eccentric wheel bodies is in contact with a side edge of the print head. One group of the eccentric wheel bodies are arranged in a forward and backward movement direction of the print head, and the other group of the eccentric wheel bodies are arranged in a leftward and rightward movement direction of the print head.