Abstract: The present invention relates to an ink-jet recording ink, containing a pigment and a compound represented by the General formula (I): R—XYnH??General formula (I) wherein R represents a hydrophobic group, or a group derived from a hydrophobic polymer; X represents a bivalent linking group having a hetero bond; Y may be A, C or D, and (Y)n contains 0 to 40% by mole of a structural unit represented by B; and n=10-3500; R1 represents H, or an alkyl group; R2 represents H or an alkyl groups; R3 represents H or a methyl group; and R4 represents H, —CH3, —CH2COOH, or —CN; Z1: H, —COOH, or —CONH2; Z2: —COOH, —SO3H, —OSO3H, —CH2SO3H, —CONHC(CH3)2CH2SO3H, or —CONHCH2CH2CH2N+(CH3)3Cl?.

Abstract: An inkjet recording ink includes at least one yellow-azo dye having specific properties or a specific structure dissolved and/or dispersed in an aqueous medium and containing a water-miscible organic solvent having a specific solubility with respect to dye.

Abstract: The invention concerns a nozzle body for a liquid droplet spray device for atomising a high viscous liquid substance such as perfume. A first and second substrate enclose a space for containing the liquid substance. Outlet means are arranged in the second substrate and have at least one outlet nozzle and at least one output channel, said output channel having straight side walls. Each output channel has a stepped shape having a wider portion and a thinner portion, the wider portion being arranged adjacent the space. The thinner portion contains a protrusion section protruding beyond the top surface of the second substrate such that the exterior side wall of the protrusion section is at a substantially straight angle with respect to the top surface of the second substrate.

Abstract: An inkjet recording method which prints out by ejecting onto a recording medium an ink set for inkjet use, wherein the ink set includes at least: a first liquid containing at least a coloring material, a water soluble solvent and water; a second liquid containing at least a coagulant, a water soluble solvent and water; and a third liquid containing at least a coagulant, a water soluble solvent and water; wherein, (A) printing modes include a single sided printing mode and a double sided printing mode, (B) when the single sided printing mode is selected printing is carried out by ejecting the first liquid and the second liquid, (C) when the double sided printing mode is selected printing is carried out by ejecting the first liquid and the third liquid, (D) the relationship 0.

Abstract: An inkjet recording apparatus includes a recording head, a recording head moving device, and a recording medium feeding device. A mark recording device prints a predetermined mark on the recording medium by ejecting ink droplets, and a mark detecting device detects the mark printed by the mark recording device. The mark detecting device is arranged at a predetermined distance from the recording medium, and is moved together with the recording head. The movement amount of the recording medium is determined based on the position where the mark detecting device detects the mark.

Abstract: Ink maintained at a negative pressure state is supplied to an ink-jet recording head via an ink supply mechanism constructed as a differential pressure valve having a coil spring and a movable membrane normally contacted elastically with a valve seat by the coil spring.

Abstract: A method for disposing of waste ink from an image producing machine (10) is provided. The machine (10) includes a printhead (32) that ejects ink in its liquid form from a face (32a) of the printhead (32), the ink being phase change ink existing in liquid form above a melting temperature and in solid form below the melting temperature. The method includes: catching waste ink from the printhead (32) in a gutter (34); heating the gutter (34) to a temperature above the melting temperature; and, flowing the waste ink from the gutter (34) into a collection container (38) where it is allowed to solidify.

Abstract: An ink jet recording apparatus in which a filter unit to filter ink with a filter having a pore size of 2.2 to 5.8 ?m is provided in an ink supply channel to supply the ink to an ink jet head. The ink flowing through the ink supply channel is quickly filtered by the filter unit, and supplied to the ink jet head without delay, thus the occurrence of ink discharge failure can be reliably suppressed.

Abstract: An inkjet printer ink cartridge, which improves upon the ink cartridge of a conventional inkjet ink cartridge, whereby need for sponge within the ink cartridge is eliminated, and a siphon device is configured within the ink cartridge. The ink cartridge utilizes a siphoning phenomenon to prevent leakage of ink from contact area of a nozzle of the inkjet printer and from an area of the siphon. Reusability of the ink cartridge is realized without affecting quality of printing of the ink cartridge, and without causing problems in environmental protection recovery.

Abstract: An ink set for ink-jet recording comprises a pigment ink and a dye ink containing a pigment and a dye as coloring agent, respectively. The pigment ink contains water, a water-soluble organic solvent, and a negatively charged pigment wherein potassium ion and sodium ion have a total ion concentration of not more than 200 ppm, and divalent or multivalent metal ion or ions have a total ion concentration of not more than 10 ppm. The dye ink contains water, a water-soluble organic solvent, and a dye associated with a counter ion of lithium ion wherein potassium ion and sodium ion have a total ion concentration of not more than 400 ppm, and divalent or multivalent metal ion or ions have a total ion concentration of not more than 10 ppm. In the ink set, the pigment and dye inks can be used in combination without complicating a maintenance system.

Abstract: The present invention includes as one embodiment a method of ejecting a fluid onto a print media. The method includes providing an ejection head having a nozzle that is coupled to a temperature sensor and a memory device. The method further includes measuring an uncalibrated temperature of the ejection head with the temperature sensor, recalling a correction value from the memory device, applying the correction value to the uncalibrated temperature to generate a calibrated temperature, and ejecting fluid from the nozzle onto the print media when the calibrated temperature is within a predefined temperature range.

Abstract: An image forming apparatus and a high-resolution printing method for the image forming apparatus are disclosed. The high-resolution printing method includes the steps of receiving from a host computer a print data, calculating a divider coefficient N, a print fire position unit (PFPU), a position offset (PO) and a print position (PP), and a print fire start position (PFSP) based on the print data, detecting a position of the carriage operated by a control signal for driving the carriage, and if the carriage reaches the PP, delaying generation of an ink firing signal, and then starting a printing by generating and outputting the ink firing signal, starting from the PFSP. A high-resolution printing in the horizontal direction can be implemented by properly controlling the PP according to a desired resolution.

Abstract: A process for preparing a mixture of copper phthalocyanine dyes of Formula (1): CuPc(SO3M)x(SO2NH2)y, wherein: CuPc is copper phthalocyanine; M is a cation; x and y each independently have a value of from 0.5 to 3.5; and (x+y)=2 to 5; which process includes: chlorosulphonating a copper phthalocyanine compound using a chlorosulphonating agent; and condensing the product of step (i) with ammonia to give a mixture of copper phthalocyanine dyes of Formula (1); optionally exchanging the cation M in the mixture of copper phthalocyanine dyes of Formula (1) resulting from step (ii) for an alternative cation M; wherein the chlorosulphonating agent includes a mixture of chlorosulphonic acid and a chlorinating agent selected from phosphorous oxychloride and phosphorous trichloride.

Abstract: An inkjet ink capable of undergoing polymerization (curing) after exposure to microwave radiation, and method for printing and fixation the above ink on various substrates by ink jet printer and microwave source is disclosed. Ink compositions suitable for microwave curing are provided. These inks overcome the problems associated with drying of solvent and water based inks, and curing of UV inks. The present invention provides also a method for quick fixation of inks in which the ink vehicle is composed of molecules having appropriate dielectric properties.

Abstract: In a water base ink set for ink-jet recording, a pigment ink has a total ion concentration of lithium ion, potassium ion, and sodium ion of not less than 60 ppm and a total ion concentration of divalent or multivalent metal ion or ions of not more than 10 ppm, and a dye ink has a total ion concentration of lithium ion, potassium ion, and sodium ion of not more than 1,800 ppm and a total ion concentration of divalent or multivalent metal ion or ions of not more than 10 ppm, wherein the total ion concentration of lithium ion, potassium ion, and sodium ion of the dye ink is 3 to 25 times that of the pigment ink. Accordingly, the water base ink set in which the pigment ink and the dye ink can be reliably used in combination without complicating a maintenance system is provided.

Abstract: An image forming method in which after recording by ejecting ink on an ink-jet recording medium containing a thermoplastic resin in the surface layer, a fixing process to fuse said thermoplastic resin or make it into a film is provided, wherein a colorless or white liquid is supplied on said ink-jet recording medium before the fixing process.

Abstract: A micro-fluid ejection assembly including a silicon substrate having accurately formed fluid paths therein. The fluid paths are formed by a deep reactive ion etching process conducted on a substrate having a surface characteristic before etching selected from the group consisting of a dielectric layer thickness of no more than about 5000 Angstroms, and a substantially dielectric material free pitted surface wherein a root mean square depth of surface pitting is less than about 500 Angstroms and a maximum surface pitting depth is no more than about 2500 Angstroms. Fluid paths in such substrates having improved flow characteristics for more reliable fluid ejection operations.

Abstract: A printing apparatus including a printing head for ejecting ink to a medium to carry out printing thereon, and a side-reversing member for reversing the sides of the medium that is printed by the printing head. A waiting time for drying, before reversing the medium with the side-reversing member, the ink ejected to the medium is set according to an amount of ink ejected by the printing head, and an elapsed-time from when the ink was ejected by the printing head.

Abstract: A printing apparatus includes a plurality of ink ejecting sections for ejecting ink. The printing apparatus prints an image on a medium to be printed by ejecting ink from the ink ejecting sections. The ink ejecting sections include a first ink ejecting section that is set to eject ink for printing a highlight region in the image, and a second ink ejecting section that is set not to eject the ink for printing the highlight region in the image.

Abstract: Pressure regulation in a liquid reservoir such as an ink of a jet printing head, is obtained by transferring a calibrated gas volume through an auxiliary reservoir, said regulation is being applied to installations manufacturing intelligent portable objects and more particularly to graphic customization stations.