A print engine includes: a media support chassis defining a curved media feed path; a maintenance chassis mounted on the media support chassis; a plurality of maintenance modules fixedly mounted between sidewalls of the maintenance chassis; a plurality of guide rails extending radially upwards from the maintenance chassis; a plurality of print module carriers, each print module carrier being slidingly received on respective parallel guide rails; a plurality of print modules releasably engaged with a respective one of the print module carriers; and a lift mechanism for radially raising and lowering the plurality of print module carriers relative to the maintenance chassis between a maintenance position a printing position.

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.

There is provided a liquid ejecting apparatus including: a print head having an ejection opening surface on which an ejection opening array for ejecting a liquid is provided in a first direction; a cap unit for protecting the ejection opening array; a moving unit configured to relatively move the print head and the cap unit; a first positioning portion for locating the print head and the cap unit in a first relative position where the print head and the cap unit come into contact with each other; and a second positioning portion for locating the print head and the cap unit in a second relative position where the print head and the cap unit come into contact with each other, the second relative position being different from the first relative position.

A liquid ejecting device includes an ejecting unit including a nozzle surface where a nozzle opens, a cap unit that performs capping, a wiper unit that performs wiping, and a cleaning unit that is attached to the ejecting unit, and performs cleaning on the wiper unit, wherein the wiper unit includes a wiping section that moves in one direction, the wiping section includes a wiper that comes into contact with the nozzle surface, the cleaning unit includes a cleaner that performs the cleaning on the wiper, the cap unit comes into contact with the ejecting unit by the ejecting unit approaching the cap unit in a perpendicular direction of the nozzle surface, a position of the cleaner in the perpendicular direction overlaps a position of the wiper in the perpendicular direction during the capping, and does not overlap the position of the wiper in the perpendicular direction during the wiping.

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.

A liquid ejection apparatus includes a wiper carriage 59, and a pressurizing mechanism 60 disposed in a liquid supply path 73 via which a liquid from the liquid storage portion 101 is supplied to an ejection head 20H. The wiper carriage 59 has a wiper 58, which is an example of a maintenance portion. The pressurizing mechanism 60 includes a liquid storage chamber 63 that forms a portion of the liquid supply path 73 and a diaphragm 62, which is an example of a deforming member configured to be deformed to change the volume of the liquid storage chamber 63. The wiper carriage 59 causes the liquid in a nozzle 20N of the ejection head 20H communicating with the liquid storage chamber 63 to flow in a discharge direction by pressing the diaphragm 62 at the pressurized position to pressurize the liquid storage chamber 63.

A system for in-line treatment of thread for use with a thread consuming device is provided. The system includes a treatment unit including at least a first and a second print head each being configured to dispense one or more coating substances onto the at least one thread when activated; and a control unit configured to determine if a maintenance sequence is to be performed on at least the first print head, and if so schedule said maintenance sequence on at least the first print head. A method is further provided.

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.

A recording apparatus includes a carriage equipped with a recording head that ejects ink to a sheet, a drive unit configured to move the carriage in a width direction of the sheet, an encoder configured to detect first information regarding a position or a velocity of the carriage that moves by the drive unit, an acceleration sensor arranged on the carriage and configured to detect second information regarding acceleration of the carriage, and a control unit configured to stop the carriage, based on the first information and the second information.

The maintenance device includes a cap and a suppression member. The cap, including an air supply port and an air discharge port, is to be fitted to a nozzle surface of an inkjet head. The suppression member is opposed to the air supply port, provided between the air supply port and the nozzle surface, and separate from the air supply port and also separate from the nozzle surface.