Provided is a nozzle clogging defect compensating method for compensating for a nozzle clogging defect appearing in a binder jetting stack manufacturing means. The nozzle clogging defect compensating method according to an embodiment of the present invention comprises the steps of: determining a defect occurrence region when a clogging defect of a nozzle used in the binder jetting stack manufacturing means occurs; determining whether compensation for the detect occurrence region is possible; when the compensation is possible, generating defect information and reflecting the defect information in an output code; setting a defect compensation region on the basis of the defect information; determining a defect compensation type of the defect compensation region; and reflecting a result of the determining in the output code. Accordingly, a replacement time and a replacement cost of an output head where the nozzle clogging defect has occurred can be saved, thereby reducing the unit production cost of a binder jetting type stack manufacturing output.

Disclosed are a method for preheating a substrate treating apparatus capable of shortening a preheating time and simultaneously performing a maintenance operation, and a computer program for the same. The method includes setting a parameter related to preheating of a preheating target component among components constituting the substrate treating apparatus; and preheating the preheating target component based on the set parameter, wherein a movement range of the preheating target component is limited to a value within a movable range.

A wiping unit includes a wiping member with a long shape configured to wipe a liquid ejecting head configured to discharge liquid, a first roller around which to wind the wiping member, a second roller configured to wind up the wiping member fed out from the first roller, a driving force transmission mechanism configured to transmit a driving force of a driving source to the second roller, a conveyance roller configured to make contact with the wiping member and rotate along with a movement of the wiping member, a first detection unit configured to detect a rotation amount of the first roller, and a second detection unit configured to detect a rotation amount of the conveyance roller.

A dross abatement system for a printer is disclosed. The dross abatement system includes a print head ejector, a pump in communication with the print head ejector having an inner cavity, a first inlet coupled to the inner cavity, a supply of printing material external to the print head ejector, a heating element configured to heat the printing material in the ejector, and a supply of absorbent material external to the print head ejector. A method of abating dross in a metal jetting printer is also disclosed, which includes pausing an operation of the printer, advancing an absorbent material into a melt pool within a nozzle pump reservoir, wherein the melt pool may include a metal printing material, absorbing dross from the metal printing material, removing the absorbent material including the dross, and resuming operation of the metal jetting printer.

A cap includes a holder and a body fitted into the holder. The body covers a nozzle surface such that an enclosed space is defined between the body and the nozzle surface. The holder includes a first side wall extending upward from a first bottom wall and having a frame shape in a plan view, and a protrusion on an inner surface of the first side wall and extending in an up-down direction. The body includes a second side wall extending upward from a second bottom wall and having a frame shape in the plan view, a lip on an upper end of the second side wall and contactable with the nozzle surface, and a recessed groove in an outer surface of the second side wall, extending in the up-down direction, and in engagement with the protrusion.

A liquid composition contains a coloring material, an organic solvent, a compound represented by Chemical Formula 1 below, a resin, and water, wherein the contact angle of water against a liquid composition film formed by attaching the liquid composition to a non-permeable printing medium is 60 degrees or less,

##STR00001## where n represents an integer of from 4 to 10.

An inkjet recording apparatus includes a heater and a recording head. The heater is disposed upstream of the recording head in terms of a conveyance direction of a recording medium. The recording medium heated by the heater has a temperature of from 40 to 80° C. The ink contains a pigment, a cellulose derivative, first and second water-soluble organic solvents, and water. The first water-soluble organic solvent is glycol ether. The second water-soluble organic solvent is a water-soluble organic solvent that is not glycol ether. The cellulose derivative has a percentage content of from 0.01 to 0.20% by mass relative to the mass of the ink. The percentage content of the glycol ether is from 6 to 24% by mass relative to the mass of the ink and from 20 to 80% by mass relative to the total mass of the first water-soluble organic solvent and the second water-soluble organic solvent.

There is provided a liquid ejecting apparatus including: a head having a nozzle; a carriage; a receiver; and a controller. The controller is configured to execute: a first flushing processing; a second flushing processing including at least one of a discharge flushing driving and a non-discharge flushing driving of driving; and a printing processing. The first flushing processing is executed in a case that a first count value is not less than a first threshold value, the first count value being an elapsed time since a completion of the first flushing processing. The second flushing processing is executed in a case that a second count value is not less than a second threshold value, the second count value being an elapsed time since a completion of the printing processing.

An inkjet printing apparatus includes a stage on which a target substrate is mounted, and an inkjet head positioned above the stage, wherein the inkjet head includes an ejection part including a plurality of nozzles that spray ink containing a plurality of particles, a filter part disposed above the ejection part, and selectively passing the plurality of particles, and an electric field generating electrode that is disposed in the filter part and generates an electric field in the filter part.

A printing apparatus includes: a recording head, discharging ink to a recording medium; a roller, having an outer circumferential surface provided for ink idly discharged from the recording head to be attached; a motor, rotating the roller in a predetermined direction; and a scraper, provided to scrape off the ink attached to the outer circumferential surface of the roller in a state in which the roller rotates in the predetermined direction. The scraper has: a recessed surface making surface contact with the outer circumferential surface of the roller; and a notch part formed at an end of the recessed surface, making line contact with the outer circumferential surface of the roller, and recessed in a substantially shape along a rotation direction of the roller and from the end of the recessed surface toward another end.