Abstract:
PROBLEM TO BE SOLVED: To uniform a distance between a module frame and a nozzle sheet. SOLUTION: The nozzle sheet 25 is arranged to have a nozzle 25a positioned within a head chip stationing hole to each head chip stationing hole at one side face of the module frame 11. At the same time, the nozzle sheet 25 is bonded to make a layer thickness a thickness of one particle 14a with an adhesive 14 which contains a plurality of particles 14a formed uniform in their particle sizes. Each head chip 20 is arranged at each head chip stationing hole from the other side face of the module frame 11 so that a heating resistor 22 of the head chip 20 and the nozzle 25a are set at opposed positions. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent quality degradation of printing results due to variation or the like of head chips by applying a printer and a printer head particularly to a line printer by an inkjet system. SOLUTION: Nozzles 31 allotted to the head chip 25 are arranged to overlap at a part of the adjacent head chip 25 when seen from a feed direction of a printing object. Nozzles of an amount of a plurality of chips are formed at one nozzle plate. The printer head is formed by arranging the head chips at the nozzle plate. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To inexpensively manufacture a liquid ejecting head while ensuring high positional accuracy of the nozzle forming surface between head chips. SOLUTION: The liquid ejecting head is manufactured through a first step for mounting a plurality of head modules 10 on a base fixture 51 while arranging, a second step for arranging a head frame 2 on the base fixture 51 from above while sustaining arranged state of the head modules 10 and then inserting each head module 10 into the head module insertion hole 2a of the head frame 2, and a third step for bonding each head module 10 and the head frame 2 on the base fixture 51. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To ensure flatness of a nozzle forming plane with high accuracy between head chips. SOLUTION: The head module comprises a head chip 20 arranged with heating resistors, a module frame 11 being stuck to the nozzle sheet in order to support it and provided with a hole for arranging the head chip 20, and a supporting member (a buffer tank 15) provided on the head chip 20 arranged in the head chip arranging hole of the module frame 11 and being bonded to the head chip 20 through a securing part 15e in order to secure the head chip 20. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To make a liquid storage amount large and a structure simple and to stably hold a liquid without a liquid leak. SOLUTION: There are provided an ink storage section 30, an ink chamber 40, a valve 50 arranged so as to move an opening/closing member 52 to release an opening region 51 by a pressure decrease due to a reduction of an ink amount of the ink chamber 40, an outside air communication hole 32a communicating with the outside air, and an air introduction pipe 32 capable of taking the air corresponding to the reduced ink amount into the ink storage section 30 from the outside air communication hole 32a when an ink amount in the ink storage section 30 reduces. A hole diameter of a lower end 32c of the air introduction pipe 32 and a head corresponding to a height from a lower face (nozzle face) of an ink discharge section 100 to the lower end 32c of the air introduction pipe 32 are determined to satisfy P>H, wherein P is a force for holding an ink meniscus at the lower end 32c of the air introduction pipe 32 and H is a pressure of the head. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To improve a cleaning effect for an ink discharge face without damaging it and to prevent ink colors from mixing at a cleaning time in an inkjet head which discharges ink from ink discharge holes onto a recording medium. SOLUTION: In the method for cleaning a printing head 4 which has an array of ink discharge holes formed for discharging the ink of a plurality of colors, a cleaning roller 7 formed of an elastic material in a cylindrical shape is moved in a longitudinal direction of the ink discharge face 6 in a state while the cleaning roller is kept in touch with the ink discharge face 6 of the printing head, and ink in the ink discharge holes is sucked by a pressure change in the ink discharge holes at a time when an outer circumferential face of the cleaning roller 7 moves in touch with the ink discharge face 6. The cleaning effect for the ink discharge face 6 is thus improved without damaging the same, and at the same time, mixing of ink colors at the cleaning time can be prevented. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus and a method for ink jet recording capable of visually reducing a positional deviation of a dot on a recording medium generated due to an influence of a conveying speed of the medium. SOLUTION: The apparatus 100 for ink jet recording to record a character or an image made of dots by ink jet has heating elements as drive elements for discharging liquid droplets I of an ink from a plurality of nozzles N1 to NN and discharges the droplets of the ink to ink jet on a recording medium. The apparatus 100 comprises conveying means 130, 140 for conveying the recording medium P, and a plurality of discharge means 121 having the plurality of the nozzles N1 to NN along a vertical direction of the conveying direction of the medium P to discharge the droplets I of the ink so that the nozzles N1 to NN opposed in a time division drive are reversely ordered.
Abstract:
PROBLEM TO BE SOLVED: To perform mixing/ejecting operation of ink and diluting liquid surely by preventing natural mixing thereof at the time of waiting ejection through a simple structure. SOLUTION: An ejection side nozzle 33 and a plurality of constant quantity side nozzles 36, 39 are provided independently. Liquid being supplied from the ejection side nozzle 33 is mixed with liquid supplied from the constant quantity side nozzles 36, 39 and mixture liquid is ejected toward a recording medium thus recording an image thereon.
Abstract:
PROBLEM TO BE SOLVED: To prevent inferiority in printing by inhibiting sticking or the like of ink or the like to around a nozzle by forming a groove part between the first nozzle opening part and the second nozzle opening part in a printer wherein the first and second nozzles which are respectively communicated to first and second pressure chambers are so opened as to be adjacent to each other. SOLUTION: A printing head of a carrier jet system printer is composed of a pressure chamber unit having pressure chamber 40, 41, and first and second piezo units corresponding to respective pressure chamber 40, 41. The pressure chamber unit is composed of an orifice plate 38 on which inductive openings 35, 37 communicated to nozzles 34, 36 are formed, the pressure chamber 40 being a passage for diluting liquid, the pressure chamber 41 being the passage of ink, and a diaphragm 42. In this case, a groove part 63 is formed over from the opening part of the nozzle 66 (36) of one main surface 68a being a nozzle opening surface of the orifice plate 68 (38) to the opening part of the nozzle 64 (34). Thereby, sticking of ink to around the nozzle opening part is inhibitted.
Abstract:
PROBLEM TO BE SOLVED: To enhance the emitting stability of mixed liquid droplets of ink and a dilution soln. and the fixing properties of ink in a formed recording image and to suppress the generation of blur by using a dilution soln. of which the surface tension and viscosity at a specific temp. are specific. SOLUTION: A dilution soln. wherein surface tension at 20 deg.C is 30-70dyn/cm and viscosity at 20 deg.C is 1-15cp is used. After this dilution soln. and ink are quantitatively mixed, the obtained mixed soln. is emitted as liquid droplets to be applied to a material to be recorded to perform recording. 20 deg.C is general environment temp. in an office or a home. When the surface tension of the dilution soln. is below 30dyn/cm or equal to or more than 70dyn/cm, emitting stability is damaged. When the viscosity of the dilution soln. is below 1cp or equal to or more than 15cp, emitting stability becomes bad. By prescribing the physical properties of the dilution soln. as mentioned above, a high-grade recording image can be formed.