摘要:
An ink jet type recording head driving circuit comprises: a capacitor which is connected through a first switching transistor and a charging time constant adjusting resistor to a power source, and grounded through a second switching transistor and a discharging time constant adjusting resistor; and a current buffer through which the terminal voltage of the capacitor is applied to a pressure generating member scanning switch circuit. In the circuit, a first pulse for contracting a pressure generating member forming the recording head is applied to the first switching transistor, and a second pulse for expanding the pressure generating member is applied to the second switching transistor, so that the pressure generating member is contracted at a rate set by the capacitor and the charging time constant adjusting resistor, to supply ink into the pressure chamber of the recording head, and then it is expanded at a rate set by the capacitor and the discharging time constant adjusting resistor.
摘要:
A cracking furnace for thermal cracking of hydrocarbon feedstocks has a central burner provided vertically at the center of the ceiling of a combustion chamber, side burners provided vertically at both sides of the central burner, and reaction tubes vertically arranged between the central burner and resepctive side burners. The reaction tubes are arranged in rows along the longitudinal direction of the chamber and form arch bands at the lower part of the combustion chamber. A combustion gas-inducting duct is provided at the bottom of the chamber, a quenching heat exchanger is provided at the upper part of the chamber, and a reaction tube exit header is provided for connecting a plurality of exits of the reaction tubes to the quenching heat exchanger.
摘要:
Darkness correction is carried out effectively. A printing method is provided with the following steps: A step of, when a plurality of nozzles arranged in a predetermined direction for each of a plurality of colors of ink is moved in a movement direction intersecting with the predetermined direction while ejecting ink of the plurality of different colors, correcting a darkness of only a predetermined color, of the plurality of colors, for each dot row region so as to inhibit darkness non-uniformities between dot row regions that are formed on a medium by dot rows in the movement direction of the nozzles, and a step of performing printing by moving the plurality of nozzles while ejecting ink.
摘要:
Quality of a printed image is improved while minimizing the amount of memory used. For example, a print-control method includes: a first print-control step of repeatedly performing a unit image formation operation of forming a unit image in a unit area on a medium by ejecting ink from nozzles arranged in a predetermined direction and moved in a movement direction, and a first carrying operation of carrying the medium by a predetermined carry amount, to print an image in an end portion, in a carrying direction, of the medium; and a second print-control step of repeatedly performing the unit image formation operation and a second carrying operation of carrying the medium by another predetermined carry amount, to print an image in an intermediate portion, in the carrying direction, of the medium. Darkness of each of the unit images within a mixed range, in which unit images printed in the first print-control step and unit images printed in the second print-control step are mixed, is corrected based on a correction value used in the second print-control step.
摘要:
A printing method and printing apparatus by which the quality of printed images can be improved are achieved. The printing method includes: (a) a step of printing a correction pattern on a medium, wherein the correction pattern is constituted by a line group including a plurality of lines arranged in an intersecting direction that intersects a movement direction of nozzles, each of the lines being made of a plurality of dots arranged in the movement direction, and is printed by alternately repeating an operation of ejecting ink from a plurality of the nozzles and an operation of moving the medium in the intersecting direction; (b) a step of setting for each of the lines a correction value for correcting a darkness in the intersecting direction of an image to be printed on the medium, wherein each of the correction values is set based on a darkness of a plurality of lines, in the line group, including the line whose correction value is to be set; and (c) a step of printing the image on the medium based on the correction values that have been set for each of the lines.
摘要:
A printing method includes: printing, on a medium, a correction pattern made of lines, the lines being formed by repeating in alternation a dot forming operation of forming dots on the medium by ejecting ink from nozzles that move in a predetermined movement direction, and a carrying operation of carrying the medium in an intersecting direction that intersects the movement direction; measuring, for each line of the correction pattern, the darkness of pixels located on a same line of the correction pattern; obtaining, for each line of the correction pattern, a correction value for correcting a darkness, in the intersecting direction, of an image to be printed based on the darkness of the pixels that has been measured; setting, for each line of the image, the correction value obtained; and forming, in the dot forming operation, dots of a corresponding line for which the correction value has been set such that the darkness of that line becomes a darkness that has been corrected based on that correction value.
摘要:
A method of processing a semiconductor wafer sliced from a monocrystalline ingot comprises at least the steps of chamfering, lapping, etching, mirror-polishing, and cleaning. In the etching step, alkali etching is first performed and then acid etching, preferably reaction-controlled acid etching, is performed. The etching amount of the alkali etching is greater than the etching amount of the acid etching. Alternatively, in the etching step, reaction-controlled acid etching is first performed and then diffusion-controlled acid etching is performed. The etching amount of the reaction-controlled acid etching is greater than the etching amount of the diffusion-controlled acid etching. The method can remove a mechanically formed damage layer, improve surface roughness, and efficiently decrease the depth of locally formed deep pits, while the flatness of the wafer attained through lapping is maintained, in order to produce a chemically etched wafer having a smooth and flat etched surface that hardly causes generation particles and contamination.
摘要:
The polymerizable compound of this invention is represented by general formula (I): where R is H, R′, R′O, R′COO, or R′OCO, R′ is a linear or branched alkyl group or alkenyl group having 1 to about 15 carbon atoms, A1 and A2 are independently a cyclohexane ring or a benzene ring which may include a substituent represented by formula (II) below; X is H or CH3; and Y1, Y2, Y3, and Y4 are independently H, F, Cl, CH3, CH3O, CF3, or CF3O wherein at least two of Y1, Y2, Y3, and Y4 are H and, if both A1 and A2 are cyclohexane rings, at least one of Y1, Y2, Y3, and Y4 is not H: where Y5, Y6, Y7, and Y8 are independently H, F, Cl, CH3, CH3O, CF3, or CF3O, at least two of Y5, Y6, Y7, and Y8 are H.
摘要翻译:本发明的可聚合化合物由通式(I)表示:其中R是H,R',R'O,R'COO或R'OCO,R'是具有1个碳原子的直链或支链烷基或烯基 至约15个碳原子,A1和A2独立地是可以包括由下式(II)表示的取代基的环己烷环或苯环; X是H或CH 3; Y1,Y2,Y3和Y4独立地为H,F,Cl,CH3,CH3O,CF3或CF3O,其中Y1,Y2,Y3和Y4中的至少两个为H,并且如果A1和A2均为环己烷环 Y 2,Y 3和Y 4中的至少一个不是H:其中Y5,Y6,Y7和Y8独立地为H,F,Cl,CH3,CH3O,CF3或CF3O,Y5,Y6中的至少两个 ,Y7和Y8为H.
摘要:
The present invention provides a polymerizable compound represented by Formula (I): ##STR1## where X represents a hydrogen atom or a methyl group; 1 represents an integer in the range of 0 to 14; m represents 0 or 1; n represents 0 or 1; p represents an integer in the range of 0 to 6; and q represents an integer in the range of 0 to 9, wherein m is 0 under the condition 1=0, and 1 under the condition 1.noteq.0.
摘要:
A rotating shaft; a boss that has a fitting hole formed in a center portion thereof, has a clean adhering surface at an end thereof, and is configured so that the rotating shaft is fitted into the fitting hole while the boss is fixed to the rotating shaft by a fixing member; a pulse disk that has an interference-fit hole formed in a center portion thereof for the rotating shaft, has a clean adhesion-receiving surface in a surrounding of the interference-fit hole, is configured so that the rotating shaft is pressed into the interference-fit hole and so that the adhesion-receiving surface is adhered to the adhering surface of the boss by an adhesive agent, and has a position detecting pattern formed thereon; a light emitting element that radiates light; and a light receiving element that receives the light from the light emitting element via the position detecting pattern are included.