Abstract: In an ink-jet printing method and ink-jet printer for printing an image on a printing medium by driving print elements of a printhead and ejecting ink in accordance with an image signal, the timing of driving the plurality of print elements of the printhead is divided into a plurality of timings, and print elements, of the plurality of print elements, which are spaced apart from each other by a predetermined distance are selected as one group at each of the plurality of timings. The print elements belonging to the selected group are energized and driven. The dispersed print elements are changed a predetermined period of time after the driving, and the changed print elements are driven. This driving operation is repeatedly executed for all the print elements of the printhead to print an image corresponding to the image signal.

Abstract: An ink jet recording head includes a liquid discharge head unit having discharge ports and ink flow paths; a liquid container holder unit capable of holding liquid containers and having supply paths for supplying liquid to the liquid discharge head units; and a buffer chamber for allowing gas to exist in the liquid supply paths, the buffer chamber being formed by coupling the liquid discharge head to the liquid supply holder unit. The ink jet recording head enables the buffer chamber allowing to gas to exist to be sufficiently cleaned, and requires no additional process for the formation of the buffer chamber thereof.

Abstract: There is provided a Cr-base heat resisting alloy, which contains Cr as a main component element and at least one element selected from the group consisting of Re and W in amount of from 1 atomic % to 40 atomic %.

Abstract: A liquid discharge recording head comprising a recording head main body provided with a plurality of liquid flow paths communicated with a plurality of discharge ports for discharging liquid, respectively, and energy generating means for generating energy utilized for discharging the liquid filled in the liquid flow paths from the discharge ports, and an orifice plate provided with a discharge port array having the plurality of discharge ports aligned in one straight line, and bonded to the front face of the recording head main body having openings of the plurality of discharge ports formed therefor, wherein the orifice plate is provided with the extended portion in the alignment direction of the discharge port array or in the direction orthogonal to the alignment direction, being extended more than the width of the front face of the recording head main body, and the extended portion is fixed to the adjacent face of the front face of the recording head main body.

Abstract: A nickel-base single-crystal superalloy, essentially consists of, in percentages by weight, 4.0% to 11.0% of cobalt, 3.5% to less than 5.0% of chromium, 0.5% to 3.0% of molybdenum, 7.0% to 10.0% of tungsten, 4.5% to 6.0% of aluminum, 0.1% to 2.0% of titanium, 5.0% to 8.0% of tantalum, 1.0% to 3.0% of rhenium, 0.01% to 0.5% of hafnium, 0.01% to 0.1% of silicon, and a balance being nickel and inevitable impurity, a total amount of rhenium and chromium being not less than 4.0% and a total amount of rhenium, molybdenum, tungsten and chromium being not more than 18.0%.

Abstract: A liquid jet print head can be installed in an ink jet printer and includes a printing unit, a printing device substrate and a supporting substrate. Projections of the supporting substrate are used as a reference for positioning when the printing device substrate is attached to the supporting substrate and when the print head is installed in a carriage of the printer. Further, all reference portions used for positioning in the three-dimensional directions when installing the print head in the carriage are gathered in the printing unit.

Abstract: The invention is prevent drawbacks resulting from the bubble generated at the downstream side of the filter, while minimizing the waste in the ink.

Abstract: A recording element substrate has a plurality of recording elements are provided, a wiring sheet is provided at a position to surround a periphery of the recording element substrate to transmit a recording signal to the recording element substrate, a wiring substrate is electrically connected to one end portion of the wiring sheet to input a recording signal from an exterior, and a flow path forming member supplies recording liquid to the recording element substrate. When the flow path forming member is joined to a frame body having a common liquid chamber, in a state in which the an end of the wiring substrate is supported by the flow path forming member, a liquid jet recording head is held due to opposing both end portions of another end portion of the wiring substrate being respectively inserted and engaged with a set of engaging grooves provided at the frame body.

Abstract: A liquid discharge recording head comprising a recording head main body provided with a plurality of liquid flow paths communicated with a plurality of discharge ports for discharging liquid, respectively, and energy generating means for generating energy utilized for discharging the liquid filled in the liquid flow paths from the discharge ports, and an orifice plate provided with a discharge port array having the plurality of discharge ports aligned in one straight line, and bonded to the front face of the recording head main body having openings of the plurality of discharge ports formed therefor, wherein the orifice plate is provided with the extended portion in the alignment direction of the discharge port array or in the direction orthogonal to the alignment direction, being extended more than the width of the front face of the recording head main body, and the extended portion is fixed to the adjacent face of the front face of the recording head main body.

Abstract: In a liquid ejecting apparatus in which ink is supplied from an ink tank to a print cartridge detachably mounted on a carriage through a tube, connection between an ink needle at a tube side and an interconnecting member at a cartridge side can sealingly be effected positively, and ink supplying and connecting means can be made compact. A closing film having a small hole and a central slit is provided at a tip end of an interconnecting member made of soft material and fitted into an ink flow-in projection portion of the print cartridge into which an ink needle is inserted. Further, a notched needle tip end avoiding configuration is provided at a lower part of a tip end of the projection portion so that abutment between the projection portion and the ink needle can be avoided when the print cartridge is mounted and dismounted, thereby reducing a shifting amount of a needle holding member.

Abstract: A liquid discharge recording head includes an orifice plate having a discharge port formed therefor to discharge liquid, and a main body portion having liquid flow paths formed therein to communicate with an opening arranged at an edge portion thereof, the discharge port and the opening being bonded to communicate with each other. A sealing groove is arranged on the circumference of the opening along the bonded face, and a filler is filled in the sealing groove. This makes it possible to pour filler into the sealing groove from the injecting groove after the orifice plate is bonded to the face having the opening formed therefor to communicate the opening with the discharge port of the orifice plate to eliminate any gaps from which the filler leaks between the orifice plate and the face having an opening formed therefor, and carry out sealing without clogging the circumference of opening or discharge port.

Abstract: A recording element substrate has a plurality of recording elements are provided, a wiring sheet is provided at a position to surround a periphery of the recording element substrate to transmit a recording signal to the recording element substrate, a wiring substrate is electrically connected to one end portion of the wiring sheet to input a recording signal from an exterior, and a flow path forming member supplies recording liquid to the recording element substrate. When the flow path forming member is joined to a frame body having a common liquid chamber, in a state in which the an end of the wiring substrate is supported by the flow path forming member, a liquid jet recording head is held due to opposing both end portions of another end portion of the wiring substrate being respectively inserted and engaged with a set of engaging grooves provided at the frame body.

Abstract: A liquid jet recording head comprises a holder member for detachably holding a recording liquid storage unit storing a recording liquid therein or a recording liquid storage tank storing the recording liquid therein, and a recording unit coupled with the holder member and comprising a recording element substrate on which a plurality of recording elements are disposed to discharge the recording liquid, a flexible wiring sheet disposed so as to cover the periphery of the recording element substrate for transmitting a recording signal to the recording element substrate, a flow path-forming member on which a recording liquid supply path is disposed to supply the recording liquid to the recording element substrate, and a porous member for filtering the recording liquid to thereby record information on a recording medium.

Abstract: A liquid discharge recording head, which is formed by bonding a recording unit having plural recording elements for discharging recording liquid, and a recording liquid supply supporting member used for supplying recording liquid to the recording unit, comprises the recording liquid supply supporting member provided with at least one first snap fitting extended substantially in the same direction as the bonding direction of the recording liquid supply supporting member and the recording unit, and at least one second snap fitting extended in the direction intersecting the extended direction of the first snap fitting; and the recording unit provided with at least one first receiving portion engaging with the first engaging portion formed for the first snap fitting, and at least one second receiving portion engaging with the second engaging portion formed for the second snap fitting.

Abstract: A head chip and a recording liquid storing unit are bonded through a sealing member. The head chip comprises a recording element base plate, and a flow path formation member provided with a bonding face and a supply hole. The frame member of the recording liquid storing unit is formed by a single member, which is provided with a recording liquid storing chamber, one side face of which forms a totally open portion. The shape of the opening portion is equal to the sectional shape of the recording liquid storing chamber. For the flat portion of the sealing member, there are formed a hole portion, the circumferential first face-side ribs that surround it, and the second face-side ribs, which are exactly symmetrical to the first face-side ribs, with the flat portion between them. These ribs are compressed and held by both bonding faces. An inner extrusion of the rib on the flat portion is fitted into the position hole of the bonding face.

Abstract: A liquid discharge head comprises recording liquid flow paths communicated with plural discharge ports for discharging liquid droplets; a flow path formation member on the upstream of the recording liquid flow path on which a recording liquid supply passage for supplying recording liquid to the recording liquid flow path is provided; a recording liquid storing member on the upstream of the recording liquid supply passage on which a common liquid chamber for containing recording liquid to be supplied to the recording liquid supply passage is provided; a plug member for supplying recording liquid from the outside into the common liquid chamber; and a porous member held at the end portion of the flow path formation member to remove dust particles and others in recording liquid supplied from the common liquid chamber to the recording liquid supply passage. In this liquid jet recording head, the porous member is arranged above a bottom face of the common liquid chamber.

Abstract: A two-dimensional positioning apparatus for positioning an object in a two dimensional direction, wherein are provided a platen, a slider having two X-axis motors and sensors and a Y-axis motor and sensor disposed above the platen, a converter for providing signals to detect the X-axis position of the center point of the slider, a controller for feedback control of the slider in a X-axis direction and a yaw direction, and for feedback control in the Y-direction, and a converter circuit for converting output of the controller to propulsion commands to be supplied to the motors, wherein a limiter is provided to restrict one axis limits of the propulsion commands. In this manner, accuracy is improved and flexibility is increased.

Abstract: There is provided an ink-jet recording head comprising a printing head unit which has one or more discharge portions for discharging one or more types of fluids for printing, a tank holder unit in which one or more tanks for storing one or more types of fluids to be discharged by the printing head unit are loaded, and a fluid supply path which is formed in the tank holder unit and communicates with the printing head unit and the tank, wherein a buffer chamber for keeping gas is connected to the fluid supply path.

Abstract: The object of the present invention is to provide an Ni-based single crystal super alloy capable of improving strength by preventing precipitation of a TCP phase at high temperatures. This object is achieved by an Ni-based single crystal super alloy having a composition consisting of 5.0-7.0 wt % Al, 4.0-8.0 wt % Ta, 2.9-4.5 wt % Mo, 4.0-8.0 wt % W, 3.0-6.0 wt % Re, 0.01-0.50 wt % Hf, 2.0-5.0 wt % Cr, 0.1-15.0 wt % Co and 1.0-4.0 wt % Ru in terms of its weight ratio, with the remainder consisting of Ni and unavoidable impurities.

Abstract: This specification discloses an ink jet recording head in which discharge energy is imparted from a plurality of discharge energy generating elements formed on an element substrate and ink in an ink flow path is discharged from a nozzle, characterized in that a driving element for driving the discharge energy generating elements and also having the function as a temperature sensor and formed as a member discrete from the element substrate is mounted on the element substrate. The specification also discloses a recording apparatus having signal transmitting means for driving the ink jet recording head.