An inkjet printing apparatus performs printing on a printing medium by feeding ink to an inkjet head having a plurality of nozzles and dispensing the ink from the inkjet head to the printing medium. The apparatus includes a tank, a supply pipe communicatively connecting the tank and the inkjet head, a pump for feeding the ink stored in the tank to the inkjet head, a filter disposed on a path of the supply pipe, and a controller for operates the pump and controlling feeding of the ink. The controller operates the pump to engage in forward drive in time of printing operation, and operates the pump to engage in backward drive in time of functional recovery operation.

A liquid filling method of filling a liquid storage device including a first tank that stores a liquid to be supplied to an ejection head ejecting the liquid and a second tank that stores the liquid to be supplied to the first tank through a connection port provided in the first tank with the liquid, the method including: injecting the liquid from a liquid storage container into the first tank through a first liquid introduction port provided in the first tank, in a state where a second liquid introduction port provided in the second tank is closed.

A system and method for positioning a food product with respect to a print head for printing on a surface thereof. The system is incorporated into a printer. The system has a movable support surface for supporting the food product thereon, the support surface being vertically and horizontally moveable with respect to the print head. A sensor is provided for detecting a position of a surface of the food product positioned on the moveable support surface with respect to the print head. The sensor provides a signal to the printer indicative of a position of the surface of the food product and wherein the moveable support surface is adjustable in response thereto. The sensor is a position sensor configured to detect the position of a top surface of the food product.

A printer ink mist collection system for a printer and a method of collecting and removing ink mist from the printer, the system having a channel extending from a print area to a filtration system wherein the filtration system comprises one or more filters and wherein the channel is configured to direct airborne ink and mist generated during printing to the filtration system and wherein the channel and filtration system are removable from a printer for purposes of cleaning the ink collection system.

A liquid ejecting head including a nozzle configured to eject a liquid, a liquid flow path communicating with the nozzle, a communication chamber including a communication port configured to communicate with atmospheric air, a partitioning wall portion provided between the liquid flow path and the communication chamber, the partitioning wall portion including an opening portion that communicates the liquid flow path and the communication chamber to each other, and an elastic member closing the opening portion.

A printing device includes an inkjet head, a filter accommodating portion, a filter configured to be accommodated in the filter accommodating portion and extending in a given direction from one end to the other end of the filter to collect mist, and a grip portion provided at least one of the one end or the other end of the filter. The grip portion includes a handle protruding from the filter, a recessed portion recessed inside the filter, or a hole.

A liquid discharge head includes a connector component, a head unit, and a relay module component. The connector component is electrically connectable to a drive board. Ink from an ink chamber is supplied to the head unit. The relay module component is between the connector component and the head unit. The relay module component is detachable from the connector component and the head unit. The relay module component includes a channel to supply the ink supplied from the ink chamber to the head unit.

A liquid ejecting head includes a nozzle configured to eject ink, a filter chamber accommodating a filter, and a nozzle introduction port through which the ink flows out of the filter chamber. The filter chamber includes a first side and a second side that extend toward the nozzle introduction port in plan view in a direction perpendicular to the filter, and the nozzle introduction port is elongated along the first side in plan view in the direction perpendicular to the filter.

A liquid ejection head includes an individual channel, a first manifold, a filter, a second manifold, and a bypass path. The individual channel has a nozzle. The first manifold is in fluid communication with the individual channel. The filter is disposed in the first manifold. The second manifold is in fluid communication with the individual channel. The bypass path is positioned between the individual channel and the filter in a direction in which liquid flows. The bypass path extends from the first manifold. The bypass path provides fluid communication between the first manifold and the second manifold not via the individual channel.

A recording device includes: an ink flow path that couples a liquid reservoir to the ejection head such that the ink stored in the liquid reservoir is supplied to the ejection head; a feeding pump exchangeably provided in the ink flow path and configured to feed the ink toward the ejection head; a deaerator provided in the ink flow path; a vacuum level adjustment mechanism configured to adjust a vacuum level in the deaerator; and a control portion that controls the vacuum level adjustment mechanism to adjust the vacuum level in the deaerator in accordance with a status of an operation to be executed.