Abstract: An ink-jet recording method and a recording apparatus used in the method detect a blank region of an image, and enable backward printing only when detecting those blanks at the top and bottom ends of a region where printing can be performed by one scan. The ink-jet recording method and the recording apparatus prevent irregular images, that would otherwise be caused by consecutive rows printed by the backward printing, and execute forward and backward printing while reducing the color difference between the printing directions so that a high-quality output can be obtained at high speed. As a result, when ink is ejected before the ejection of a print-characteristic improving liquid, the image quality of a border in contact with a region including the print-characteristic improving liquid in the main-scan direction and the sub-scan direction can be improved.

Abstract: When printing is performed by ejecting respective inks of black and cyan and a processing liquid, an OR data and an AND data are derived from an extracted data for the processing liquid derived from an ejection data of the black ink and an extracted data for the processing liquid derived from an ejection data for the cyan ink. An OR data of the OR data derived from the extracted data and data derived by shifting the AND data for one pixel, is taken as an ejection data for the processing liquid. By this, for the pixel, on which black and cyan are ejected in overlapping manner as represented by the AND data, the processing liquid is further ejected on a pixel adjacent thereto. Thus, the processing liquid in an amount corresponding to an ink ejection amount can be ejected to provide sufficient water-resistance.

Abstract: An ink jet recording method for recording in which an ink is discharged by the pressure of a bubble generated in the ink by means of thermal energy, having the steps of preparing an ink jet head having a liquid path provided with a heating element and communicated with a discharge opening supplying the ink into the liquid path, the ink having a surface tension equal to or less than critical surface tension of a recording medium generating thermal energy for generating a bubble with the heating element in such a manner that the bubble is communicated with the atmosphere from the discharge opening when the generated bubble has a negative internal pressure and discharging the ink from the discharge opening by means of the pressure of the bubble generated.

Abstract: When a black image region is printed, the overall pixels in the region is printed by a black ink. Then, a cation type cyan ink which makes a coloring agent in the ink insoluble is printed on the pixels of a predetermined pattern. By this, the dye of the black ink is maintained near the surface of the printing medium to increase density of the black image. At the same time, for preventing variation of tone of the black image, the pixels of the predetermined pattern are printed by a yellow ink.

Abstract: In a recording apparatus for recording on a recording medium by using a plurality of recording heads arranged at a predetermined interval in a scan direction, the recording heads are caused to scan corresponding divided recording areas. When the recording heads are caused to scan the corresponding divided recording areas, at least one of the recording heads is caused to record in a plurality of different recording areas. Positions of a recording medium are defined at a plurality of reference positions provided for the recording areas in which the recording is made.

Abstract: A leather coloring process for carrying out coloring on a natural leather, or a natural leather which has been subjected to degreasing. The coloring process is accomplished by ink-jet coloring on at least a partial area of the natural leather.

Abstract: In a recording apparatus for recording on a recording medium by using a plurality of recording heads arrange at a predetermined interval in a scan direction, said recording heads are caused to scan corresponding divided recording areas, said recording heads are caused to make the record by sharing the corresponding divided recording areas when said recording heads are caused to scan the divided recording areas, and record signals to be inputted to the recording heads corresponding to the divided recording areas to be recorded in the shared manner, are independently corrected for each of the divided recording areas. As a result, the occurrence of the density difference between divided areas is prevented.

Abstract: Using a recording head with 8 nozzles, and feeding paper or recording medium by an amount equal to 2 nozzles at each recording scan, recording is made with respect to first and second rasters in a first recording scan by #7 and #8 nozzles. At this moment, the #7 nozzle has a SMS printing rate of 1/3, and the #8 nozzle has a printing rate of 1/4. Initial values of a context memory are both 0. After the paper is fed by 2 nozzle distance, in a second recording scan, first--fourth rasters are recorded by #5-#8 nozzles. Rasters to be recorded are increased by 2 at every paper feed by 2 nozzle distance, and after 8 rasters, the rasters to be recorded are decreased by 2. Since the printing rate of the odd number nozzle is larger than that of the even number nozzle, an odd numbered raster is recorded partly two times by the odd number nozzle, thereby making emphasis printing uniformly over the entire image.

Abstract: In a recording apparatus for recording on a recording medium by a plurality of recording heads, a scan unit has a carriage capable of mounting the recording heads at a predetermined interval and causes the recording heads to scan corresponding divided recording areas. A record control unit causes the recording heads to conduct a first record mode to record an area of a first recording width in a direction of scan by shared recording by the recording heads of the corresponding recording areas and a second record mode to record an area of a second recording width smaller than the recording width of the first recording width by causing at least one of the recording heads to record in the corresponding divided recording area when the corresponding divided recording areas are scanned. A distance between two recording apparatus mounted at outermost positions in the arrangement of the recording heads on the carriage is not larger than a difference between the first recording width and the second recording width.

Abstract: There are provided ink jet printing method and apparatus which assure that reciprocable printing can be realized at a high speed without any deterioration of a quality of printing. When an image is printed on a printing medium by using a multi-orifice head of which the ink ejecting direction relative to an opening surface is inclined in the return scanning direction, a scanning speed of the return scanning direction is delayed from the scanning speed in the reverse forward direction, an offset distance between a main dot and a satellite at the time of the return scanning is suppressed to be small, and in the case that printing is performed by reciprocable scanning, the satellite is received in the main dot not only during the forward scanning but also during the return scanning.

Abstract: A transfer medium includes a transfer portion having a transfer characteristic capable of separating only a region imparted with ink.

Abstract: This invention relates to an ink jet recording apparatus and a recording method for recording images of high dignity with the amount of ink placed per unit area of a recording medium being always kept constant even if the resolvability when recording is effected changes. When the amount of ink of an ink droplet discharged from a recording head is constant (25 pl), the average number of recorded dots conformity to the resolvability is found on the basis thereof, and the number of recordable dots is found from this average number of dots. The difference between this number of actually recorded dots and the average number of recorded dots is adjusted by reducing the value of recording data in advance.

Abstract: A lenticular method is known as method for forming stereoscopic images or animated images on a lenticular plate. This method uses a film as an aggregate element having a plurality of lenses provided with almost semi-cylindrical extrusions (circular extrusions). This invention relates to the image formation on a recording medium (lenticular plate) of a lenticular type. With the provision of a device for detecting relative misregisteration between images and the lenses constituting the lenticular plate, and a device for positioning the images and lenses, extra work and costs are saved. Also, with simple structures on both recording apparatus and plate sides, the formation of high quality stereoscopic images or animated images is materialized.

Abstract: Provided is a leather treatment process for leather coloring, carried out on a leather to be colored with a liquid ink, the process comprises the steps of, imparting to the coloring surface of the leather a resin soluble in the liquid ink and imparting to the coloring surface an aggregate of particles with a functional group having an affinity for the liquid ink.

Abstract: An ink jet cartridge, removably mountable on an ink jet recording apparatus, includes a recording head and an ink tank containing recording liquid. The head and cartridge are removably connected through an engaging member provided on the ink tank and an engaged member provided on the recording head. When the ink tank and the recording head are not combined, a protecting cover provided on the recording head can protect sensitive components of the recording head, while partially overlapping the side of the link tank and being integrated therewith when the recording head and ink tank are combined.

Abstract: In a method of manufacturing and storing a recording sheet, a coating solution is coated on at least one surface of a base member and dried and a resulting recording sheet is cut and enclosed in a packaging material. The process from drying to enclosing is carried out in an atmosphere having a humidity not exceeding 50% RH.

Abstract: A recording medium is provided which comprises a base sheet and an ink-receiving layer on at least one face of the base sheet, the ink-receiving layer containing at least: (i) polyvinyl alcohol or a derivative thereof, (ii) polyalkylene oxide or derivative thereof, and (iii) a hydrophilic acrylic resin composed of a copolymer of a first vinyl monomer having a cationic group with a second vinyl monomer having a hydrophobic group. A recording method is also provided which employs the above recording medium.