Abstract:
PROBLEM TO BE SOLVED: To improve the reliability of a liquid delivering type recording head. SOLUTION: The liquid delivering type recording head has both a substrate 33 where liquid delivering energy generating elements 33a are formed and which constitutes a part of a passage that supplies a liquid, and a coating resin layer 36 which is formed on the substrate 33 and has liquid delivering ports 35 that constitute a part of the passage and also deliver the liquid. The coating resin layer 36 is formed of an oxetane resin composition which is composed of both an oxetane compound with at least one oxetanyl group in a molecule and a photo-cationic polymerization initiator as essential components. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve the reliability of a liquid delivering type recording head. SOLUTION: A first coating resin layer 7 with a liquid passage 5 and liquid delivering ports 6 of the liquid delivering type recording head 1 is formed of an oxetane resin composition which is composed of both an oxetane compound with at least one oxetanyl group in a molecule and a photo-cationic polymerization initiator as essential components. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an ink discharging device which can easily increase the processing precision of an ink discharging section, and as well as reduce the variation in the amount of discharging ink droplets and the discharging angle or the like even when dust and dirt are mixed in the ink, and in addition, satisfy both of a high printing grade and a printing speed at a high level by preventing the feeding speed of the ink to the ink discharging section from decreasing. SOLUTION: This ink discharging device includes a plurality of heat releasing resistors 13 which are provided on a board member 11, an ink liquid chamber for pressurizing the ink by the heat generated by the heat releasing resistors 13, and a nozzle 17 having a discharging port for discharging the ink which has been pressurized in the ink liquid chamber. In the ink discharging device, a nozzle 17 is arranged above each of heating resistors 13, and at the same time, an opening face of the nozzle 17 on the heating resistor 13 side is made an ink flow-in port 17b, and the other opening face is made an ink discharging port 17a. Thus, the internal space of the nozzle 17 is made to work as the ink liquid chamber as well without separately independently forming the ink liquid chamber. Then, an ink circulating space section having a height H is formed by making a supporting member 14 have the height H. When a minimum opening length of the internal space of the nozzle 17 including the discharging port 17a and the ink flow-in port 17b is taken as Dmin, a relationship of H
Abstract:
PROBLEM TO BE SOLVED: To prevent generation of steps by a coating type insulating film and also to prevent deterioration of a heating element by applying, for example, an inkjet printer with a thermal system which has both the heating element and a transistor for driving the heating element formed integrally on a substrate, to a liquid discharging head, a liquid discharging apparatus and a manufacturing method for a liquid discharging head. SOLUTION: A lower layer of the heating element 37 (60a and 60b) is flattened by the coating type insulating film. At the same time, recesses 59 and 73 are set near the heating element 37 (60a and 60b). A volatile component is removed from the coating type insulating film by a heat treatment. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To obtain a method for ejecting liquid in a liquid channel as a liquid drop group from a liquid ejection hole in which the ejection quantity of each liquid drop in the liquid drop group being ejected continuously from the liquid ejection hole toward one shooting point is stabilized over a wide frequency band of a pulse signal. SOLUTION: In the liquid ejection method, ink in an ink channel 21 is ejected as a group of continuous ink liquid drops 30, 30... from a nozzle 20, and the ejection quantity of each ink liquid drop 30 in the group of ink liquid drop 30, 30... being ejected continuously from the nozzle 20 toward one dot D in response to a pulse signal is made constant or approximately constant over a wide frequency band of that pulse signal thus ejecting liquid by varying the driving frequency of the pulse signal within that frequency band. Ejection quantity of each ink liquid drop 30 can thereby be stabilized over a wide frequency band of the pulse signal and a print image having a high image quality can be formed. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To obtain a liquid ejector comprising a plurality of chips, each having a plurality of liquid ejecting parts juxtaposed in a specified direction, arranged in a specified direction in which variation in the shooting position of liquid is suppressed in the specified direction. SOLUTION: Heating resistors 13 of a printer head chip 11 are arranged in one ink liquid chamber 12 while being divided into two and the heating resistors 13 in one ink liquid chamber 12 divided into two are juxtaposed in the direction perpendicular to the arranging direction of nozzles 18. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method of inspecting a printer head for readily and surely detecting presence or absence of a damage of a protection layer by applying the method to a print head particularly in a type of ejecting ink drops by heating a heating element. SOLUTION: After a wiring pattern is dissolved and a semiconductor substrate is held in an etching condition which does not influence the protection layer, the presence or absence of the dissolution of the wiring pattern is judged. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To obtain a printer head having a structure for suppressing variation in the length of head gap in which high quality transfer is ensured while suppressing unevenness of density. SOLUTION: The printer head 1 comprises a heater chip 18 placed on a base plate 19, a heating means formed on the heater chip 18, and a transfer part having a structure of protrusions and recesses arranged in one or more line on the heater chip 18 along the longitudinal direction thereof, wherein ink held in the transfer part through capillarity is heated by the heating means depending on recording information and flown toward a transfer material 7 thus transferring information thereto. The heater chip 18 is provided with a sliding part 46 between the printer head 1 and the transfer material 7.
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that the recording density is limited by conditions regulated when a magneto-optical recording medium is reproduced and to secure satisfactory reproducing output even when a recorded information bit is made minute, i.e., to enhance an S/N (C/N). SOLUTION: A magnetic film of the magneto-optical recording medium is irradiated with a laser beam and recorded information is read-out by the laser beam and magneto-optical mutual action in a recording magnetic domain of the magnetic film. This magneto-optical recording medium has at least a first magnetic film 11, a third magnetic film 13 and a second magnetic film 12 arranged between the films 11 and 13. The Curie temperature of the film 12 is made lower than that of the each of the films 11 and 13.
Abstract:
PROBLEM TO BE SOLVED: To obtain a recorded image with high resolution, sufficient optical density, good deviation and less variation in these recording characteristics, while characteristics of a conventional method of thermal transfer recording are utilized. SOLUTION: In a record head, a plurality of heater chips 1 are opposing to each other and a plurality of heating sections 6 for heating a recording medium to transfer it to a medium to be recorded are formed in the respective heater chips 1. An individual electrode 41A for energizing the heating section 6 is provided to each of the heating sections 6. A return electrode 41B is provided to each gap between the respective heater sections 6. The return electrode 41B is not provided to an end section in the respective opposing position of the chips 1, but only the individual electrode 41A is provided. Thereby, it is possible to attain the accurate pitches between the heating sections 6 in the overall of the recording head having the plurality of chips 1.