Abstract: The method of manufacturing a wiring board comprises the steps of: forming a flow channel by covering a groove formed in a resin substrate by means of a covering member; and filling a liquid containing conductive metal into the flow channel, and depositing the conductive metal onto wall faces of the flow channel.

Abstract: The liquid ejection head comprises: a plurality of pressure chambers connected to a plurality of nozzles from which liquid is ejected, the pressure chambers being arranged in a two-dimensional configuration; a diaphragm which constitutes a wall of each of the pressure chambers, the wall being located opposite to the nozzles; a plurality of piezoelectric elements disposed at positions corresponding to the pressure chambers on a surface of the diaphragm which is on an opposite side of the diaphragm from the pressure chambers, the piezoelectric elements causing portions of the diaphragm corresponding to the pressure chambers to deform; an intermediate plate which is located on a piezoelectric element side of the diaphragm where the piezoelectric elements are disposed and which forms a space around a periphery of each of the piezoelectric elements; electrical wires for electrically connecting drive circuits which drives the piezoelectric elements with drive electrodes of the piezoelectric elements, the electrical

Abstract: To fill the ink cartridge with the ink, a first air introduction hole of a negative pressure generator chamber is sealed up, and a pressure pump is connected to a second air introduction hole of a storage chamber, to raise pressure inside the storage chamber so as to exhaust air out of an ink bag. While keeping the storage chamber under the high pressure, the second air introduction hole is sealed up, the first air introduction hole is opened, and an ink filling pump is activated to inject the ink through an ink outlet into the negative pressure generator chamber. When a predetermined amount of ink is injected, the second air introduction hole is opened, and the ink filling pump is reactivated to fill up the ink bag as well as the negative pressure generator chamber with the ink.

Abstract: An ink cartridge is partitioned into a negative pressure generator chamber containing a negative pressure generator and a storage chamber containing an ink bag. The ink bag stores ink and supplies the ink to the negative pressure generator chamber through an ink port. The negative pressure generator absorbs and holds the ink by its capillary force, to keep pressure inside nozzles of a recording head negative to atmospheric pressure. Through a first air introduction hole, the air is introduced into the negative pressure generator chamber as the ink in the negative pressure generator chamber decreases. Through a second air introduction hole, the air is introduced into the storage chamber as the ink in the ink bag decreases. So variations in pressure inside the nozzles are suppressed, which makes ink discharge from the nozzles stable.

Abstract: An ink-jet recording apparatus has a recording head that discharges ink from a nozzle to print an image. An ink container consisting of an ink bag and a case is placed above the recording head to supply the ink. A micro pump is connected to the case, to adjust pressure in a room between the ink bag and the case, thereby to control a nozzle internal pressure. Because a pumping height from an outlet of the nozzle to an ink liquid surface in the ink bag has influence on the nozzle internal pressure, a pump controller reads image data of those lines to be recorded later, to predict based on the image data a pumping height at a given time after. Based on the predicted pumping height, the pressure in the room is adjusted to keep the nozzle internal pressure in a predetermined range.

Abstract: The liquid supply apparatus supplies liquid for ejection to a liquid ejection head. The apparatus comprises: a tank which stores the liquid; a liquid supply channel through which the liquid in the tank is conveyed to the liquid ejection head; a flow rate determination device which determines a flow rate of the liquid flowing through the liquid supply channel; a pressure loss determination device which determines a pressure loss in a whole of the liquid supply channel according to the flow rate determined by the flow rate determination device; a pressure loss modification device which is disposed in a portion of the liquid supply channel and modifies the pressure loss in the liquid supply channel; and a control device which controls the pressure loss modification device according to the pressure loss in the whole of the liquid supply channel determined by the pressure loss determination device, in such a manner that the pressure loss in the whole of the liquid supply channel remains substantially constant.

Abstract: The liquid ejection head comprises: a plurality of ejection ports which eject liquid; a plurality of pressure chambers which are respectively connected to the ejection ports; a plurality of piezoelectric elements which respectively deform the pressure chambers, the piezoelectric elements being arranged on sides of the pressure chambers opposite to sides thereof where the ejection ports are formed; a common liquid chamber which supplies the liquid to the pressure chambers, the common liquid chamber being arranged on the sides of the pressure chambers opposite to the sides thereof where the ejection ports are formed; a plurality of wiring members which have electrodes for driving the piezoelectric elements, respectively, each of the wiring members being formed in such a manner that at least a portion thereof rises through the common liquid chamber in a direction substantially perpendicular to a plane on which the piezoelectric elements are arranged; and a drive circuit which drives the piezoelectric elements, t

Abstract: The liquid ejection head comprises: a plurality of pressure chambers which are provided correspondingly to a plurality of ejection holes formed on a first wall defining the pressure chambers, the ejection holes being two-dimensionally arranged and ejecting liquid toward a liquid receiving medium, the pressure chambers accommodating the liquid to be ejected from the ejection holes; a common liquid chamber which supplies the liquid to the pressure chambers; a plurality of piezoelectric elements which are provided correspondingly to the pressure chambers and are arranged on a second wall defining the pressure chambers opposing the first wall, the piezoelectric elements each having individual electrodes to which drive signals are applied; a plurality of extending electrodes which extend from the individual electrodes of the piezoelectric elements and are electrically connected to the individual electrodes; a structural member which is bonded to a first surface of the second wall reverse to a second surface thereo

Abstract: The method forms a plate having liquid ejection orifices from a thermosetting resin containing inorganic micro-particles. The method comprises the steps of: opposing a first mold having pins for forming the liquid ejection orifices and a second mold such that a clearance of ? is provided between the second mold and each of tips of the pins, the clearance ? and a diameter d of the inorganic micro-particles having a relationship of ?<d; and injecting the thermosetting resin containing the inorganic micro-particles into a cavity between the first and second molds for forming the plate.

Abstract: The liquid ejection apparatus comprises: a liquid ejection head having an ejection port surface on which ejection ports for ejecting liquid are formed; a wiping device having a blade member which wipes and cleans the ejection port surface; a sliding device which causes the blade member to slide relatively with respect to the ejection port surface; a cleaning capability identification device which identifies a cleaning capability of the wiping device; and a cleaning capability restoration device which restores the cleaning capability of the wiping device in accordance with the cleaning capability identified by the cleaning capability identification device.

Abstract: The liquid ejection apparatus comprises: a liquid ejection head having an ejection port surface on which ejection ports for ejecting liquid are formed; a wiping device having a blade member which wipes and cleans the ejection port surface; a sliding device which causes the blade member to slide relatively with respect to the ejection port surface; a state identification device which identifies at least one state, of a state of the ejection ports, a state of the ejection port surface, and an operational state of the blade member when sliding over the ejection port surface; and a cleaning capability modification device which modifies a cleaning capability of the wiping device in accordance with a determination result of the state identification device.

Abstract: The ink supply device for an inkjet printer which supplies ink to an inkjet head via an ink supply channel from an ink tank storing ink, the ink supply device comprises: a printing duty pre-reading device which previously reads a printing duty from print data; and a flow rate adjustment device which is provided on an upstream side of a pressure loss region in the ink supply channel and controls a flow rate of ink passing through the pressure loss region in the ink supply channel to a prescribed flow rate, in accordance with the printing duty obtained by the printing duty pre-reading device.

Abstract: The image recording apparatus comprises: a plurality of nozzle rows of respective colors in each of which a plurality of nozzles are arranged independently for each of inks of the respective colors, the plurality of nozzles discharging the inks onto a recording medium; a conveyance device which performs relative conveyance of the recording medium in a relative conveyance direction relatively with respect to the plurality of nozzle rows; and a fixing device which fixes the inks deposited on the recording medium from the plurality of nozzles, wherein the image recording apparatus records an image by discharging the inks of the respective colors onto the recording medium from the plurality of nozzles while the relative conveyance by the conveyance device, and the image recording apparatus further comprises at least one of: a nozzle row separation distance control device which controls a nozzle row separation distance S between a first nozzle row and a second nozzle row which are positioned adjacently in the plur

Abstract: The method for evaluating color mixing between dots of two different colors discharged onto a recording medium, the method comprises the steps of: outputting a color mixing evaluation print having a color mixing evaluation patch formed on a recording medium by dots of two different colors in such a manner that at least a portion of the dots are adjacent or overlapping; measuring a density of the color mixing evaluation patch of the outputted color mixing evaluation print; and evaluating color mixing of the dots of two colors, according to density profiles for the dots of two colors forming the color mixing evaluation patch, as obtained by the density measuring step.

Abstract: The image recording apparatus comprises: an inkjet head which has a plurality of nozzles discharging ink onto a recording medium; a conveyance device which performs relative conveyance of the recording medium relatively with respect to the inkjet head; and a fixing device which fixes the ink deposited on the recording medium from the plurality of nozzles, wherein the image recording apparatus records an image by discharging the ink onto the recording medium from the inkjet head while the relative conveyance by the conveyance device, and the image recording apparatus further comprises: a conveyance control device which controls a relative conveyance velocity of the recording medium in the relative conveyance with respect to the inkjet head; a discharge amount control device which controls an amount of the ink discharged from the inkjet head; a fixing control device which controls a fixing energy applied by the fixing device to fix the ink deposited on the recording medium; and a bleeding prevention control dev

Abstract: The method for evaluating bleeding into a recording medium of ink discharged onto the recording medium, the method comprises the steps of: outputting a bleeding evaluation print including a plurality of bleeding evaluation patches created by recording lines of a prescribed length of ink colors, at a prescribed width, and varying at least one of a recording speed at which recording data is recorded onto the recording medium, a volume of ink discharged, and a fixing energy which fixes the discharged ink onto the recording medium, as a parameter, between a plurality of different levels; measuring density of each of the bleeding evaluation patches in the outputted bleeding evaluation print; and evaluating the bleeding of the ink into the recording medium according to a density measurement result on the bleeding evaluation patches.

Abstract: The inkjet recording apparatus comprises: a recording head including a plurality of nozzles which eject a plurality of ink droplets two-dimensionally in a sub-scanning direction that is a direction of relative conveyance of a recording medium and the recording head, and in a main scanning direction that is orthogonal to the sub-scanning direction, wherein the nozzles are arranged in such a manner that, taking Pmin to be a minimum pitch of the nozzles in the sub-scanning direction, and taking Pts to be a pitch in the sub-scanning direction between the nozzles that eject ink droplets deposited adjacently in an overlapping fashion in the main scanning direction on the recording medium, a relationship Pts>Pmin is satisfied.

Abstract: The image forming apparatus comprises: a line type recording head in which a plurality of nozzles ejecting ink are arranged through a length corresponding to a full width of a recording medium; a recording medium conveyance device which supports and conveys the recording medium in a direction of conveyance of the recording medium and causes the recording head and the recording medium to move relatively to each other, the recording medium conveyance device including a medium supporting part which supports the recording medium, a plurality of opening sections being formed in the medium supporting part, the plurality of opening sections being arranged in a staggered matrix in such a manner that at least one of the plurality of opening sections is present throughout a whole width of a nozzle region of the recording head when the plurality of opening sections are projected so as to be aligned in a direction substantially orthogonal to the direction of conveyance of the recording medium; an ejection control device

Abstract: The image forming apparatus comprises: a discharging head which has a nozzle surface on which nozzles for discharging liquid droplets are formed; a medium supporting device which supports a recording medium, the medium supporting device being disposed in a position opposing the nozzle surface of the discharging head, the medium supporting device including a liquid collecting device having inclined surfaces along which liquid entering from a side of the discharging head is slidable downwards, and openings formed at bases of the inclined surfaces and connecting to a rear surface of the medium supporting device; and a suctioning device which suctions the liquid through the openings in the liquid collecting device.

Abstract: The image forming apparatus comprises: a line type recording head which is arranged so that a longitudinal direction thereof is substantially orthogonal to a conveyance direction of a recording medium; a suction pipe which is disposed in parallel with the recording head and connected to a suctioning device; a rotating body which is supported rotatably on an outer circumference of the suction pipe and has a first opening section and a second opening section; a platen which is arranged in the first opening section of the rotating body movably in parallel with the conveyance direction of the recording medium; and a cap member which is arranged in the second opening section of the rotating body and adapted to cap nozzles of the recording head, wherein the recording medium is suctioned onto the platen and parallelly moved along a conveyance path in a state where the first opening section of the rotating body is connected to the suction pipe.