摘要:
A liquid discharging head includes a discharge port for discharging liquid, a liquid passage communicated with the discharge port, a bubble generating area for generating a bubble in the liquid in the liquid passage, the bubble generating area including a heater for heating the liquid in the liquid passage, and a movable member disposed in a confronting relation to the bubble generating area in the liquid passage and adapted to be shifted by pressure caused by generating the bubble at the bubble generating area to direct the pressure toward the discharge port and to be returned to its initial position by negative pressure due to contraction of the bubble, and wherein resistance of the movable member against the liquid in the liquid passage when it is shifted is smaller than that when it is returned.
摘要:
An ink jet recording head includes a plurality of discharge ports for discharging ink, a plurality of ink flow paths in communication with the plurality of discharge ports, a plurality of substrates including discharge energy generating elements for providing discharge energy for discharging ink, a supporting member for supporting a plurality of substrates in an arranged state, and a ceiling plate member for forming the plurality of ink flow paths by being bonded to a plurality of arranged substrates.
摘要:
An ink leaking from an atmosphere communication hole of a waste ink container is guided to an end portion of the waste ink container. Electrodes are provided for shutting off an ink guide path. By this, the ink leaking through the atmosphere communication hole is inherently guided into the end portion of the container to come into contact with both of the electrodes. By contacting of the ink, a resistance value between the electrodes is varied to permit detection of ink leakage based on the variation of the resistance value. As a result, ink leakage from a waste ink container employed in an ink-jet printer or so forth can be certainly detected. Also, sealing ability of the waste ink container can be enhanced.
摘要:
An ink tank has an ink container storing the ink to be used in the printing apparatus, a waste ink container storing the ink used in the printing apparatus, an atmosphere communication hole provided in the waste ink container, and a coupling member provided on one of or both of the ink container and the waste ink container and provided for coupling the ink container and the waste ink container, and forming an ink guide path for guiding the ink flown from the atmosphere communication hole to a predetermined position of the ink container or the waste ink container. An elastic body has a domed shape, and is used at a coupling portion in one of or both of the ink container and the waste ink container, the coupling portion for coupling the containers to the printing apparatus.
摘要:
A connector cap 56 having connection openings 56A and 56B provided respectively corresponding to the other ends of ink passages 46 and 54 and a communication passage 56R for communicating the connection opening 56A with the connection opening 56B is provided detachably to the other ends of the ink passages 46 and 54.
摘要:
An ink jet recording head including a base plate substrate formed by a first base plate substrate and a second base plate substrate in which the thermal expansion coefficient of the first base plate substrate directly in contact with a substrate having discharge energy generating elements arranged thereon is smaller than that of the second base plate substrate and the first base plate substrate is formed by material having the thermal expansion coefficient closer to that of the substrate having the discharge energy generating elements arranged therefor, and at the same time, the first base plate substrate, above which the discharge energy generating elements are placed, is supported by a surface of the second base plate substrate and a side face in the longitudinal direction of the second base plate substrate.
摘要:
An ink jet recording head includes a plurality of ink ejection outlets, a first member having a plurality of grooves in fluid communication with the ejection outlets, respectively, a second member having a plurality of energy generating elements for producing energy for ejecting ink in the grooves through the ejection outlets, and a clamping unit for clamping the first member with the second member to constitute ink passages with the grooves, wherein the clamping unit has a plurality of pressure regulating mechanism pressure regulating mechanisms, which are independently operable.
摘要:
An ultraviolet-curing composition comprising an ultraviolet-curing compound having at least one carboxyl group and at least one ultraviolet-curing unsaturated bond in its molecule, a base, water, and a polymerization initiator, and having a viscosity of 10 centipoises or below.
摘要:
An etching resist composition containing at least a polymeric compound having an acid value of not less than 35, a base, and water, and having a viscosity of 10 centipoises or below.