A liquid discharging device includes a head, a cap, a first wiper, a discharge channel, and a controller. The head ejects liquid from a nozzle. The cap is configured to abut against a nozzle surface at a covered position and to separate from the nozzle surface in a retracted position. The first wiper wipes the nozzle surface. The discharge channel connects an internal space of the cap to an outside of the cap. The controller executes a first maintenance process and a second maintenance process. In the first maintenance process, a first maintenance liquid contacts the cap in the retracted position and the first wiper. In the second maintenance process, a second maintenance liquid different from the first maintenance liquid is distributed to the internal space of the cap and the discharge channel.

A liquid discharge apparatus includes: a liquid discharge head having a discharge face having a nozzle from which a liquid is discharged to a medium; a carriage, to which the liquid discharge head is mountable, and reciprocally movable in a main-scanning direction; a guide supporting the carriage to guide the carriage to move in the main-scanning direction; a cap to contact and seal the discharge face of the liquid discharge head; a suction device connected to the cap; and a cap cleaner, supported and guided by the guide to move in the main-scanning direction, to drop a cleaning liquid to the cap.

A printing apparatus includes: a printhead configured to discharge ink; a carriage, on which the printhead is mounted, configured to move in a first direction such that the printhead moves across a printing region where a printing operation by the printhead is performed and a standby region adjacent to the printing region; a cap arranged in the standby region and configured to suck the ink from the printhead; and a wiper configured to perform wiping for the printhead. The cap can be displaced to a first position and a second position farther from the printing region in the first direction than the first position. At the second position, the cap can be displaced to an upper position to cap the printhead and a lower position to be separated from the printhead allowing the wiper to wipe the printhead.

A liquid ejection apparatus has a liquid ejection head that has nozzles for ejecting liquid, a liquid container that has a liquid replenishing port through which the liquid is replenished from the outside, a plug member that can close the liquid replenishing port by being positioned at a closing position and open the liquid replenishing port by being positioned at an open position, a carriage configured to arrange the liquid ejection head and the liquid container, a cap configured to cap the nozzles so as to cover the nozzles, and a control unit, assuming that a state where the nozzles are covered by the cap is a capping state and a state where the nozzles are not covered by the cap is a non-capping state, configured to bring the nozzles and the cap into the non-capping state before removing the external container from the liquid replenishing port.

A liquid jetting apparatus includes: a head unit including nozzles; a cap which covers the nozzles in a state of being in contact with the head unit at a capping position; and a cap movement device including a cam having a slide surface and a cam follower which is slid on the slide surface. One of the cam and the cam follower is provided integrally with the cap, and the other of the cam and the cam follower is moved in a slide direction. The slide surface includes a first inclined surface inclined by a first angle relative to the slide direction and a second inclined surface inclined by a second angle greater than the first angle relative to the slide direction.

In a printer, when a pressed member that is movable together with a movable table pressed by an ink head causes a movement mechanism to move the movable table and the pressed member slides on the ink head, caps are moved from a separate position to a cap position by changing relative positions of nozzle surfaces and the caps in a vertical direction without changing the relative positions of the nozzle surfaces and the caps in a main scanning direction.

There is provided a liquid jetting apparatus including: a liquid jetting head; a carriage; a cap; a cap switching device switching the cap between a capping state and an uncapping state; a carriage blocker movable between a first position not contacting carriage, and a second position blocking movement of the carriage in a first direction; and a contacting portion locatable, in the uncapping state, at a third position at which the contacting portion is not in contact with carriage, and locatable, in the capping state, at a fourth position at which, under a condition that the blocked carriage rotates around an axis perpendicular to a liquid jetting surface with the carriage blocker as a supporting point, the contacting portion is capable of contacting the rotating carriage. The contacting portion is configured to move integrally with the cap in a plane parallel to the liquid jetting surface.

An inkjet head maintenance mechanism includes: an inkjet head including a nozzle plate with ejection ports arranged in the nozzle plate and configured to eject droplets of ink, and a protection plate stacked on the nozzle plate and having an opening formed at a position corresponding to the ejection ports and exposing the ejection ports to an outside; a cap configured to come into contact with the protection plate and surround the opening of the protection plate; and a controller configured to detect an on-off state of a power supply of an inkjet printer to which the inkjet head is attached and adjust a contact pressure of the cap onto the protection plate depending on the detected on-off state of the power supply.

A three-dimensional object printing apparatus includes: a head having a nozzle surface; a robot that has a base portion that supports the head, and changes a position of the head with respect to the base portion; and a cap portion having a fixed position to the base portion to cover the nozzle surface, in which the three-dimensional object printing apparatus is configured to execute: a capping operation of causing the robot to locate the head at a position at which the nozzle surface is covered with the cap portion, and a printing operation of causing the head to eject the liquid to a work with respect to the work, and a yaw angle of the head during the execution of the capping operation and a yaw angle of the head during the execution of the printing operation are different from each other.

A printer is provided with a first nozzle surface including a first nozzle row, a second nozzle surface including a second nozzle row positioned with respect to the first nozzle row in a main scanning direction, a receiver having a width smaller than an interval between the first nozzle row and the second nozzle row, and a driver. A processor of the printer causes the driver to perform a discharge driving to discharge ink from at least one of nozzles of one of the first nozzle row or the second nozzle row, and causes the driver to perform a non-discharge driving to not discharge ink from at least one of nozzles of the other of the first nozzle row or the second nozzle row, in a state of one of the first nozzle row or the second nozzle row being caused to face the receiver in a discharge direction.