A device for printing on hollow bodies has a plurality of printing units each having a printing cylinder. At least one of the printing units has an inking unit having a chambered doctor blade that provides printing ink. The chambered doctor blade system has at least one ink pan and a doctor blade holder in a single assembly. The single assembly of the chambered doctor blade system is retained in the inking unit only on one side. The assembly of the chambered doctor blade system forms a cantilever arm on a side frame of the inking unit. The assembly of the chambered doctor blade system can be moved axially parallel to the anilox roller and can be removed from the inking unit by that movement.

A blade assembly of a waste catchment system for a roller comprises a support plate for attachment to a tray of the waste catchment system and a blade holder. The blade holder is configured to receive a blade having a free edge adapted to engage with the roller to be cleaned. The blade holder includes a channel for receiving and retaining the blade, the blade being insertable into and removable from the blade holder by sliding with respect thereto. The blade holder and the blade comprise respective co-operating elements configured to permit sliding of the blade relative to the blade holder in the longitudinal direction of the blade and to constrain the blade against movement relative to the blade in a direction perpendicular to the said longitudinal axis.

A device for printing on hollow bodies has a plurality of printing units each having a printing cylinder. At least one of the printing units has an inking unit having a chambered doctor blade that provides printing ink. The chambered doctor blade system has at least one ink pan and a doctor blade holder in a single assembly. The single assembly of the chambered doctor blade system is retained in the inking unit only on one side. The assembly of the chambered doctor blade system forms a cantilever arm on a side frame of the inking unit. The assembly of the chambered doctor blade system can be moved axially parallel to the anilox roller and can be removed from the inking unit by that movement.

A liquid discharge apparatus includes: a head having a nozzle surface in which a nozzle is opened; a wiper configured to come into contact with the nozzle surface and move relative to the head; and a controller. The controller is configured to execute: a viscosity determination process of determining viscosity of liquid adhering to the nozzle surface; and a wiping process in which the wiper comes into contact with the nozzle surface and moves relative to the head. In a case in which the determined viscosity is lower than first viscosity indicating that the liquid is substantially solidified, a pressing pressure when the wiper comes into contact with the nozzle surface in the wiping process is set to be larger than a stress due to viscous friction of the liquid on the nozzle surface.

A liquid discharge apparatus includes a substrate having a discharge port face provided with a discharge port for discharging a liquid, a member having a recessed portion for storing the substrate, a sealing material for sealing a gap between the recessed portion of the member and the substrate, a wiping member configured to wipe the discharge port face, and an application member configured to apply oil to the sealing material.

Provided is an ink jet recording method with which, even when a recording head in which a protective tape is bonded to an ejection orifice surface which is a water-repellent surface is used, occurrence of ejection misdirection of an ink is suppressed, and the ejection misdirection hardly occurs even after long-period use. The ink jet recording method includes recording an image through use of an ink jet recording apparatus including a wiping unit for an ejection orifice surface subjected to water-repellent treatment. A protective tape to be peeled at the time of use is bonded to the ejection orifice surface. The method includes a first cleaning sequence of wiping the ejection orifice surface through use of one wiper having a blade shape, the first cleaning sequence including a first wiping step and a second wiping step.

A liquid discharge device includes: a head configured to discharge a liquid from a nozzle opening on a nozzle surface; a wiper configured to be brought into contact with the nozzle surface at a front surface of the wiper and be movable relative to the head in a first direction; a support portion configured to support at least a rear surface of the wiper and be movable relative to the wiper in a second direction intersecting the nozzle surface and the first direction; and a controller configured to: acquire an elapsed time from when the liquid is discharged from the nozzle; determine, based on the elapsed time, a first support position which is a position of the support portion in the second direction; and position the support portion at the determined first support position, and move the wiper relative to the head in the first direction.

An inkjet recording apparatus includes a blade, a protruding member, a holder, a first biasing member, a supply member, and a second biasing member. The protruding member is provided integrally with the blade, and protrudes toward an inkjet head. The holder supports the protruding member and the blade. The first biasing member biases the protruding member and the blade toward the inkjet head around the shaft portion. The supply member is provided on a rear side of the nozzle surface in the moving direction, and is in contact with a tip end portion of the blade so that a cleaning liquid is supplied to the blade. The second biasing member biases the supply member toward the inkjet head. The blade is not in contact with the supply member when the protruding member and the supply member are not pushed from a side of the inkjet head.

An inkjet recording apparatus includes a blade, a first supply member, and a second supply member. The blade performs a wiping operation along a nozzle surface of an inkjet head. The first supply member is provided on a rear side of the nozzle surface in a moving direction in the wiping operation, and supplies a cleaning liquid to the blade. The second supply member is provided on a front side of the nozzle surface in the moving direction in the wiping operation, and supplies the cleaning liquid to the blade.

An inkjet recording apparatus includes a processing liquid head ejecting a processing liquid, an ink head ejecting an ink, a processing liquid wiper wiping the processing liquid head, an ink wiper wiping the ink head, and an ink container including a first opening receiving the ink. A movement range of the processing liquid wiper during the wiping is set to a position without a region directly above the first opening.