Abstract: A method for making an orifice plate. The orifice plate defines both orifices and connected chambers. The orifice plate is constructed to permit, in the same print head, one chamber (or orifice) to be deeper (as well as, if desired, wider and longer) than another chamber (or orifice) that may be next to the first chamber.

Abstract: A process for creating and an apparatus employing shaped orifices in a semiconductor substrate. A first layer of material is applied on the semiconductor substrate then a second layer of material is then applied upon the first layer of material. An orifice image is then transferred to the first layer of material and a fluid-well image is transferred to the second layer of material. That portion of the second layer of material where the orifice image is located is then developed along with that portion of the first layer of material where the fluid well is located to define an orifice in the substrate.

Abstract: The present invention relates to a device for controlling fluid movements. The device includes a fluid guiding device, and a fluid moving device which includes polymers whose hydrophilic and hydrophobic properties can be selected under the action of an external force. The fluid moving device comprises a plurality of polymer elements whose hydrophilic and hydrophobic properties can be selected. The elements are arranged along the guiding device and at least one actuating unit is used to generate the external force.

Abstract: It is an exemplified object of the present invention to provide such ink that maintains dispersive and preservative stabilities suitable for inkjet ink, an ink storage storing the ink, and a recording device using the ink. The ink of the present invention is aqueous dispersoid ink comprising at least water, a water-soluble organic solvent and a colorant, and the composition thereof is as follows. A ratio R of Kt to Ko (=Kt/Ko) satisfies R≦5, where Ko (=Dm/Do) is a ratio of a maximum particle diameter Dm to an average particle diameter Do in said ink, both of which diameters are measured by detecting backscattering light and converting the detection result into a particle diameter under a dynamic light scattering method as a measurement principle. Kt (=Tm/To) is a ratio of a maximum particle diameter Tm to an average particle diameter To in the ink that has been preserved for six months at a constant temperature of 50° C.

Abstract: A method of digitally printing a liquid ink by means of a printer which uses liquid ink such as an ink jet printer. The ink contains dyes or pigments or other colorants, a liquid carrier, and compounds with functional groups capable of reacting with active hydrogen, and compounds with functional groups containing active hydrogen, or functional groups capable of conversion to active hydrogen containing groups. One or more emulsifying agents emulsify the liquid ink. An image is printed onto a substrate, at a relatively low temperature, so that the ink is not activated during the process of printing on to the medium. The image is subsequently transferred or permanently fixed on the substrate by the application of heat and pressure, which activates the ink, and bonds the colorant to the substrate. The reactive compounds may be blocked with blocking agents which are removed by the application of heat or other energy during activation of the ink.

Abstract: A highly efficient ink jet printing method is provided which involves printing of two liquids of an ink composition and a reaction solution containing a reactant capable of functioning to agglomerate ingredients of the ink composition. Efficient printing of two liquids and production of good printed images can be attained by a method wherein ink jet recording heads are reciprocated on a recording medium and an ink composition is deposited on the recording medium both at the time of motion of the recording head in the forward direction and at the time of motion of the recording head in the backward direction, while the reaction solution is deposited onto the recording medium only at the time of motion of the recording head in the forward or backward direction.

Abstract: The invention provides inkjet print heads, which have one or more components of a polymer material, which is produced, substantially, or with the use of, at least one Compound (I) XaRbSiR1(4−a−b) with X=hydrolyzable group, R=eventually substituted Alkyl, Aryl, Alkenyl, Alkylaryl or Arylalkyl, R1=organic remainder with at least one polymerizable group, a= to 3, b=0 to 2. In addition, the invention provides a process for the manufacture of the heads and for the utilization, for said purpose, of a polymer material.

Abstract: The present invention provides a printer which enables to prevent dispersion of a quantitative medium in a discharge medium during a wait period of time, so as to realize an accurate quantification of the quantitative medium to be mixed with the discharge medium, which enables an accurate gradation expression. The printer includes a printing head having quantitative nozzle communicating with a quantitative medium pressure chamber into which a quantitative medium is introduced and a discharge medium nozzle communicating with a discharge medium pressure chamber into which a discharge medium is introduced. The quantitative medium is made to seep out from the quantitative medium nozzle toward the discharge medium nozzle and after this, the discharge medium is discharged from the discharge medium nozzle to be mixed with the quantitative medium so that the mixture obtained is discharged. The quantitative medium nozzle have an opening of, for example, a crescent shape, i.e.

Abstract: A cleaning fluid for use with an inkjet printer having orifices for injecting ink, the surface of the orifices at the injection point being formed by a predetermined material includes a liquid for cleaning the surface of the orifices, such liquid including a di or trihydroxysilane which acts as a biocide, surfactant, and humectant.