Abstract: According to one embodiment, an inkjet head includes a nozzle plate, a base member, a frame-like member, an ink chamber, a supply channel and a discharge channel. The nozzle plate includes nozzles. The base member includes driving elements that cause the ink to be ejected from the nozzles, and is opposed to the nozzle plate. The frame-like member is interposed between the nozzle plate and the base member and includes first opening parts and a second opening part extending over all the first opening parts. The ink chamber is provided inside the frame-like member and communicates with the ink chamber. The supply channel is provided in the base member and communicates with the ink chamber to supply ink. The discharge channel is provided in the base member, communicates with the ink chamber to discharge ink, and is connected to the first opening parts through the second opening parts.

Abstract: There is provided an image recording apparatus including: a casing; a carriage unit which is movable in the casing in a scanning direction intersecting with a transporting direction of a medium; a liquid jetting head mounted on the carriage unit; and a controller which controls the carriage unit and the liquid jetting head so that the carriage unit reciprocates within a predetermined range in the scanning direction under a condition that the liquid jetting head jets the liquid to the medium, and that the carriage unit moves to a cartridge exchange position under a condition that the mounted liquid cartridge is to be changed, the cartridge exchange position being adjacent to the exchange port and being located outside the predetermined range in the scanning direction.

Abstract: A micro-fluid ejection head for a printer is disclosed. The micro-fluid ejection head comprises a plurality of printhead modules. Each of the plurality of printhead modules comprises an ejection chip for ejecting fluid. The micro-fluid ejection head further comprises a support frame to mount the plurality of printhead modules for creating a lengthy array of the plurality of printhead modules. The support frame is electrically coupled with the plurality of printhead modules for allowing the plurality of printhead modules to receive data and electrical power.

Abstract: A printhead module is provided for an inkjet printhead assembly. The printhead module includes a support. An elongate carrier is mounted to the support. The carrier defines a plurality of transverse ribs and an ink channel located between the ribs. A subassembly includes a micro-electromechanical integrated circuit (IC) configured to eject ink. The subassembly is mounted to the carrier so that the support, carrier and subassembly define a plurality of sealed ink chambers which can feed ink to the IC via the ink channel.

Abstract: An inkjet print head including a substrate and a first film member stacked on the substrate to form an ink path, and a manufacturing method thereof. The first film member includes a path-defining layer made of a photosensitive material and formed with the ink path, and an adhesive layer made of a photosensitive material and used to stably bond the path-defining layer to the substrate. With this configuration, the path-defining layer and the adhesive layer can be simultaneously stacked on the substrate and also, can be patterned simultaneously.

Abstract: Disclosed is an image forming apparatus that includes plural recording heads that eject liquid droplets and plural maintenance units that correspond to the plural recording heads. The plural maintenance units are capable of separately moving between opposed positions opposed to the plural recording heads and retracted positions not opposed to the plural recording heads, and the plural maintenance units are retracted into the retracted positions in postures different from postures at the opposed positions.

Abstract: Disclosed is a fluid ejection device that includes a nozzle plate. The nozzle plate includes a plurality of nozzles for fluid ejection. Further, the fluid ejection device includes a substrate disposed below the nozzle plate. The substrate includes a top surface adapted to adhere to the nozzle plate. The substrate also includes at least one fluid via configured within the substrate for providing fluid to the plurality of nozzles of the nozzle plate. Furthermore, the fluid ejection device includes at least one supporting structure configured within each fluid via of the at least one fluid via. The at least one supporting structure is further configured at a predetermined depth from the top surface of the substrate to regulate the flow of the fluid from the at least one fluid via to the plurality of nozzles. Further, disclosed is a method to fabricate the fluid ejection device.

Abstract: A piezoelectric ink jet head that includes a polymer film, for example a flex print, located between the piezoelectric element and the reservoirs in the jet body. The film provides an efficient seal for the reservoirs and also positions the electrodes on the side of the piezoelectric element in which motion is effected, which can reduce the magnitude of the drive voltage. This location of the compliant flex print material also can enhance electrical and mechanical isolation between reservoirs, which improves jetting accuracy. The compliance of the polymer also reduces strain on the ink jet head.

Abstract: A cradle unit for receiving a print cartridge to form a print engine, the cradle unit includes a main body defining an opening for receiving said cartridge, the main body having a frame structure including end plates with drive and exit rollers mounted therebetween; a printed circuit board (PCB) pivotally mounted between the end plates for housing control electronics for controlling the operation of the print engine; a cover assembly for securing said cartridge in the opening, the cover assembly pivotally mounted between the end plates, the cover assembly configured to pivot the PCB into electrical contact with a printhead controller on the cartridge when in a closed position, and to pivot the PCB out of electrical connection with said printhead controller when in an open position; and a maintenance assembly mounted to the main body, the maintenance assembly movable between a capping state where a printhead of the print cartridge is capped, and a printing stage where a printhead of the print cartridge is unca

Abstract: Methods and means for imaging are provided. A sequential application hierarchy of two or more colors is defined. A page-wide print array forms images on a moving media using colored inks. Shingling is performed in accordance with the sequential application hierarchy within the overlap print zones of the page-wide print array. Images formed on the media are visually seamless and of proper hue and color saturation throughout as a result of the present teachings.

Abstract: A liquid ejection head includes: a first and a second common liquid chamber formed in a substrate; a first nozzle array in which short and long nozzles are connected to the first common liquid chamber and alternately arranged on one side of the chamber; a second nozzle array in which short and long nozzles are connected to the first common liquid chamber and alternately arranged on the other side; a third nozzle array in which short and long nozzles are connected to the second common liquid chamber and alternately arranged on one side of the chamber; and a fourth nozzle array in which short and long nozzles are connected to the second common liquid chamber and alternately arranged on the other side; wherein the long and short nozzles formed on the one side and the long and short nozzles formed on the other side are disposed within a pitch P.

Abstract: A feed mechanism for a wide format printer is provided having a supply spool for supplying media web to a printhead, a take-up spool for receiving the web after printing, a take-up motor connected to the take-up spool, a take-up control system for controlling the take-up motor torque, a drive roller system positioned between the supply and take-up spools, a drive motor connected to the drive roller system, and a braking motor connected to the supply spool for generating tension in the web between the supply spool and the drive roller system. The take-up, drive and braking motors are separate motors and are separately connected to the take-up spool, drive roller system and supply spool, respectively. The web fed from the drive roller system to the take-up spool is maintained under substantially constant tension by regulating the torque of the take-up motor using the take-up control system.

Abstract: There is provided a method of printing a regular array of rows of subpixels on a workpiece. The subpixels have c different colors and have a subpixel pitch s. A printing head has z nozzles arranged in a row with a spacing p, where z=n1(c) and p=(c?1)(s), the printhead being at a first position relative to the workpiece. There are c different printing inks, one for each of the c colors, and each of the printing inks is supplied to the nozzles in a regular alternating pattern. The method includes steps of printing a first set of z rows of subpixels with the printing head; moving the workpiece laterally relative to the printing head by a distance d1, where d1=z(s); printing a second set of z rows of subpixels with the printing head; repeating the printing steps n2 times for a total of n2+2 sets of z rows of subpixels. Variables include: c, an integer greater than 1; n1, an integer greater than 0, with the proviso that when c is an odd number, then n1 is an odd number; and n2, an integer greater than 0.

Abstract: A grayscale printing control method, a device thereof and a storage medium are provided. The method comprises: determining the grayscale level of image data of each point in each point line and converting the same into multi-bit binary data; forming a data set using the binary data of the same bit of all the points in a point line, thereby forming multiple data sets; each data set corresponding to a predetermined strobe time, and the print head heater corresponding to each point heating upon receiving predetermined data during the strobe time. The present invention can reduce the number of printing strobes and the times of data transmission while ensuring printing quality, thereby greatly improving printing speed.

Abstract: Improved output quality of a printer used in UV curable ink jet printing is achieved by minimizing or eliminating a print artifact referred to as gloss banding or tire tracking. A same or a similar number of nozzles as used in conventional printers is used to achieve a desired throughput, but the nozzles are arranged so that any given square inch of substrate to which ink is being applied receives a lower amount of ink. A longer effective print head is provided by arranging the print heads into a longer array, where the print heads are butted substantially end-to-end. As a result, the net throughput of the printer is the same as that of a conventional printer because the printer uses the same number of print heads, but the amount of ink that is applied to any given square inch is less on a pass.

Abstract: An ink mixed with spacer members is ejected onto one or both of a TFT substrate and a CF substrate while an ink jet head having a plurality of ink jet nozzles is moved. The excursions of a predetermined number of ink jet nozzles from an end of the ink jet head overlap those of a next excursion of the ink jet head without causing overlapping of ejected ink within the overlapping area. An abrupt stepwise change in the amount of ejected ink is suppressed whereby an uneven gap is suppressed.

Abstract: An image forming apparatus includes a common array base member; and plural head modules each formed of a module base member and plural heads configured to discharge droplets arranged in an array on the module base member. The plural head modules are attached on the common array base member. The heads of at least two of the head modules discharge liquid droplets of the same color. The at least two of the head modules are positioned relative to a same reference point provided by a reference member on the common array base member.

Abstract: An inkjet recording liquid contains water, an organic solvent, a pigment, and a pigment dispersing resin. An weight-average molecular weight of the pigment dispersing resin exceeds 30000 and is 150000 or less. A mass ratio of the pigment dispersing resin to the pigment in the recording liquid (resin content/pigment content) is 0.1 or more and 1.0 or less. An acid value of the pigment dispersing resin is 160 or more and 240 or less. The inkjet recording liquid is discharged from a recording head of the inkjet recording device. Even when nozzles of the recording head become clogged due to drying or thickening of the inkjet recording liquid, the nozzle clogging can be easily resolved with a purge operation and wiping operation of the recording head by a wipe unit. Thus, it is possible to reduce an overconsumption of the recording liquid due to the foregoing purge operation.

Abstract: A printhead assembly includes an ink manifold having a plurality of ink outlets defined in a manifold bonding surface; one or more printhead integrated circuits, each printhead integrated circuit having a plurality of ink inlets defined in a printhead bonding surface; and an adhesive film sandwiched between said manifold bonding surface and said one or more printhead bonding surfaces, said film having a plurality of ink supply holes defined therein, each ink supply hole being aligned with an ink outlet and an ink inlet. The adhesive film is a laminated film comprising a central polymeric film sandwiched between a first adhesive layer and a second adhesive layer, the first adhesive layer has a melt temperature lower than that of the second adhesive layer.

Abstract: This aims to provide an inkjet recording apparatus which prevents a beading or a color bleeding in a recording system using a line head, and an inkjet recording method. The inkjet recording apparatus comprises an ink line head equipped with nozzle rows having a plurality of nozzles arranged at a predetermined pitch for discharging inks containing coloring materials, and a fixing liquid line head equipped with nozzle rows having a plurality of nozzles arranged at a predetermined pitch for discharging fixing liquids to enhance the fixtures of the inks to a recording medium. The inkjet recording apparatus performs the records by discharging the inks and the fixing liquids from the individual line heads to the recording medium while moving the recording medium and the individual line heads relatively in predetermined directions.