A printing system for applying a coating product, including a print head for applying the coating product flowing in the normal flow direction, a single filter positioned upstream of the print head, and a plurality of valves and conduits for conveying the coating product and at least one flush fluid. The plurality of valves and conduits being arranged so that the single filter may be flushed with the flush fluid only in the direction opposite to the normal flow direction, and so that the print head may be flushed with the flush fluid in the normal flow direction, the single filter and the print head being flushable independently of each other.

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 fluid cartridge and a method for eliminating mechanical stresses on an ejection head chip. The fluid cartridge includes a plastic fluid body having a front wall, a rear wall opposite the front wall, left and right side walls attached to the front wall and to the rear wall, a bottom wall attached to the front wall and the rear wall, and to the left and right side walls. A die bond member is attached to the plastic fluid body adjacent to the bottom wall and an ejection head chip is disposed on the die bond member so that the die bond member is between the bottom wall and the ejection head chip.

An embodiment of the present invention provides an inkjet head including: a head body having a storage chamber capable of storing ink; a first inlet pipe and a second inlet pipe connected to the head body and which extend in first different directions and inject the ink in the first different directions; a first outlet pipe and a second outlet pipe connected to the head body and which extend in second different directions and eject the ink in the second different directions; and a nozzle plate positioned under the head body and which includes a plurality of nozzles.

A printer and corresponding method of printing an image on a surface of a plurality of food products by providing a system having a printer with an extendable and retractable receiving arm and a rotating food product delivery tray for continuously and automatically providing delivery of unprinted food products which are retracted into the printer, printed on, and returned by the receiving arm to the rotatable delivery tray and the tray further moves to deliver subsequent food products for printing.

An ink maintenance system for a printer comprising a first tray having a base and a plurality of side walls, the first tray having a first length and an open top along the length and a second tray having a base and a plurality of side walls, the second tray having a second length and an open top along its length. The system also includes a fan and a filter. To use the system, a print head is positioned in a standby or cleaning position within the printer and ink is ejected from one or more print nozzles into an ink maintenance system within the printer such that the ejected ink is collected in at least one of a catch tray or a filter of the ink maintenance system. The system is then removable from the printer for cleaning.

A printer and corresponding method of printing an image on a surface of a plurality of food products by providing a system having a printer with an extendable and retractable receiving arm and a movable food product delivery tray for continuously and automatically providing delivery of unprinted food products which are retracted into the printer, printed on, and returned by the receiving arm to the rotatable delivery tray and the tray further moves to deliver subsequent food products for printing. A motorized base spaced apart from the printer supports the delivery tray during and printing processes.

A liquid ejecting head includes: a nozzle face; a filter; a downstream chamber that includes a first outlet and a second outlet for discharging the liquid, the downstream chamber being located downstream of the filter; a first flow passage that is in communication with the downstream chamber through the first outlet; a second flow passage that is in communication with the downstream chamber through the second outlet; and a common flow passage that is in communication with the first flow passage and the second flow passage, wherein, as viewed perpendicularly to the nozzle face, the first outlet is located at a position that is shifted from a center of the downstream chamber in a first direction, and the second outlet is located at a position that is shifted from the center of the downstream chamber in a second direction that is opposite of the first direction.

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 apparatus includes a printing element board, supply and collection flow passages, a liquid feeding mechanism, and first and second bubble reservoir units. The printing element board includes a pressure chamber having an ejection port from which the printing element board ejects a liquid. The supply and collection flow passages communicate with the pressure chamber. The liquid feeding mechanism generates a difference in pressure between the supply and collection flow passages to supply the liquid from the supply flow passage to the pressure chamber and to recover the liquid in the pressure chamber from the collection flow passage. The first bubble reservoir unit connects the supply flow passage to the liquid feeding mechanism. The second bubble reservoir unit connects the collection flow passage to the liquid feeding mechanism. A volume of the first bubble reservoir unit is larger than a volume of the second bubble reservoir unit.