摘要:
A thermally-driven ink-jet printhead is provided. The thermally-driven ink-jet printhead comprises a substrate (110) on which an ink chamber (106) to be filled with ink to be ejected, a manifold (102) for supplying ink to the ink chamber (106), and an ink channel (104) for connecting the ink chamber (106) and the manifold (102) are formed; first sidewalls (111) and second sidewalls (112), which are formed to a predetermined depth from the surface of the substrate (110) and surround the ink chamber (106) to have a rectangular shape, the first sidewalls (111) being disposed in a widthwise direction of the ink chamber and the second sidewalls (112) being disposed in a lengthwise direction of the ink chamber (106); a nozzle plate (120), which is formed of a plurality of material layers stacked on the substrate and through which a nozzle (108) connected to the ink chamber (106) is formed; a heater (122), which is disposed between the nozzle (108) and each of the first sidewalls (111) inside the nozzle plate (120) to be positioned above the ink chamber; and a conductor (124), which is disposed inside the nozzle plate and electrically connected to the heater (122). Inner surfaces of each of the first sidewalls are uneven, or a pocket is formed in each of the first sidewalls.
摘要:
An ink-jet printhead is provided. The ink-jet printhead comprises an ink chamber (102) filled with ink to be ejected, a manifold, which supplies ink to the ink chamber, an ink channel, which connects the ink chamber and the manifold, a nozzle (106) through which ink is ejected from the ink chamber, first and second heaters (108a,108b), which heat ink in the ink chamber and generate bubbles, and a conductor, which is electrically connected to the first and second heaters and applies a current to the first and second heaters. The first and second heaters are disposed to be symmetrical with each other centering on the nozzle, and one of the first and second heaters is disposed toward the ink channel.
摘要:
A method of driving a ink-jet printhead is provided. The method involves applying a main pulse for ejecting ink to the heater; and applying a post pulse to the heater after ink is ejected.
摘要:
A thermally-driven ink-jet printhead is provided. The thermally-driven ink-jet printhead comprises a substrate (110) on which an ink chamber (106) to be filled with ink to be ejected, a manifold (102) for supplying ink to the ink chamber (106), and an ink channel (104) for connecting the ink chamber (106) and the manifold (102) are formed; first sidewalls (111) and second sidewalls (112), which are formed to a predetermined depth from the surface of the substrate (110) and surround the ink chamber (106) to have a rectangular shape, the first sidewalls (111) being disposed in a widthwise direction of the ink chamber and the second sidewalls (112) being disposed in a lengthwise direction of the ink chamber (106); a nozzle plate (120), which is formed of a plurality of material layers stacked on the substrate and through which a nozzle (108) connected to the ink chamber (106) is formed; a heater (122), which is disposed between the nozzle (108) and each of the first sidewalls (111) inside the nozzle plate (120) to be positioned above the ink chamber; and a conductor (124), which is disposed inside the nozzle plate and electrically connected to the heater (122). Inner surfaces of each of the first sidewalls are uneven, or a pocket is formed in each of the first sidewalls.
摘要:
An ink-jet printhead and an ink expelling method are provided. The ink-jet printhead includes an ink chamber and an ink channel formed in a passageway plate, an ink ejection hole formed in a cover plate (120) provided on the passageway plate (210), a condenser lens (232) provided at a position corresponding to the ink chamber in the bottom surface of the passageway plate, and laser beam irradiating means for irradiating a laser beam onto ink contained in the ink chamber through the condenser lens; wherein a surface of the ink is vibrated by a pressurized wave generated by the laser beam, and the vibration causes an ink droplet to be expelled from the surface of the ink through the ink ejection hole. The ink expelling method includes filling an ink chamber with ink, irradiating a laser beam onto the ink contained in the ink chamber to generate a pressurized wave in the ink and vibrating a surface of the ink using the pressurized wave, and expelling an ink droplet from the surface of the ink by the vibration.
摘要:
Provided are an inkjet printer and a printing method using the inkjet printer. The inkjet printer forming one image on a single sheet of paper by performing a plurality of printing jobs on the paper includes a print head which is fixed to the inkjet printer and performs a printing job on the paper which moves relative to the print head, and a paper rotating member rotating the paper on which printing job has been performed by the print head 90 degrees in a horizontal direction, wherein the paper, which is fed to the print head in a first direction for the printing job to be performed by the print head, is rotated 90 degrees in a horizontal direction by the paper rotating member, and then the rotated paper is fed to the print head in a second direction opposite to the first direction and a printing job is repeatedly performed on the paper by the print head.
摘要:
Provided are an inkjet-type spotting apparatus for manufacturing microarrays and a method of spotting using the same. The spotting apparatus includes a plurality of reservoirs (110) which are arranged in rows (161-164) and filled with a predetermined biomolecule solution; and a plurality of nozzles (112), each corresponding to one of the reservoirs (110) and through which the biomolecule solution is ejected, wherein a distance d 2 between the nozzles (112) in a first direction (x-direction) may be larger than a distance between spots in a spot array, and the biomolecule solution is ejected sequentially from the nozzles (112) in each of the rows (161-164) onto a solid support while the apparatus moves in the first direction to form the spot array. The distance d 2 between the nozzles (112) may be the same as the distance d 1 between the reservoirs (110). The distance h between the nozzles (112) in a second direction (y-direction) may be the same as the distance between the spots.
摘要:
Provided are an inkjet-type spotting apparatus for manufacturing microarrays and a method of spotting using the same. The spotting apparatus includes a plurality of reservoirs which are arranged in rows and filled with a predetermined biomolecule solution; and a plurality of nozzles, each corresponding to one of the reservoirs and through which the biomolecule solution is ejected, wherein a distance between the nozzles in a first direction is larger than a distance between spots in a spot array, and the biomolecule solution is ejected sequentially from the nozzles in each of the rows onto a solid support while the apparatus moves in the first direction to form the spot array.