摘要:
A bubble jet printer head comprises a base plate, an ink chamber provided on the phase plate, a device for supplying ink to the ink chamber, an ink passage provided on the base plate from the ink chamber to an orifice at a front end, and a heating element at the ink passage for heating the ink to form a bubble. The heating element includes a first electrode strip extending on the base plate to the ink chamber along the ink passage, an electrical insulator layer covering the first electrode strip except for the front and rear ends thereof, the electrical insulator layer having a front end facing the orifice, a resistance strip provided on the electrical insulator layer and having a front end in contact with the front end of the first electrode strip and extending rearwardly along and over the electrical insulator layer, and a second electrode strip provided on the electrical insulator layer in contact with the rear end of the resistance strip and extending rearwardly to the ink chamber along and over the electrical insulator layer.
摘要:
A liquid jet recording head which is used for generating bubbles in a writing liquid of a liquid chamber and discharging droplets of the writing liquid to a recording sheet in an ink-jet printer. The liquid jet recording head includes an orifice from which the writing liquid is discharged, a liquid discharge path leading to the orifice, the orifice communicating with the liquid chamber. The liquid jet recording head further includes a plurality of energy generating elements for generating energy to produce the bubbles in the writing liquid, the plurality of energy generating elements being provided within the liquid chamber and corresponding to a single orifice. Each of the energy generating elements has an energy transmitting surface which is approximately perpendicular to the liquid discharge path, and one or more combinations of the energy generating elements which are independently driven by the drive control mechanism to allow gradation recording on the recording sheet.
摘要:
A liquid jet recording head includes a liquid path member having a plurality of liquid flow paths, each of the liquid flow paths being filled with a recording liquid, an orifice being formed at an end of each of the liquid flow paths, and a heater base member having a plurality of heater members and a plurality of radiator members. The heater base member is connected to the liquid path member, each of the heater members having a heater portion, the heater portion generating heat in accordance with a power supplied to it. Each of the radiator members is thermally coupled to the heater portion of one of the heater members so that the amount of heat transmitted from the heater portion to the recording liquid on the heater portion changes in a predetermined direction. When a power is supplied to the heater portion, a bubble is generated in the recording liquid and located at an area on the heater portion, the area having a size corresponding to the power supplied to the heater portion, the bubble causing a recording liquid droplet to be jetted from the orifice.
摘要:
An ink jet recording head assembly includes: a base member having a plurality of enclosures, a top of each of the enclosures having an opening; a mechanism for supplying ink to each of the enclosures via the opening at the top thereof and for maintaining the ink at a predetermined depth; and a heater element which is provided in each of the enclosures under the ink supplied via the opening, the heater element heating the ink in each of the enclosures so that a bubble is generated in the ink; wherein an ink drop is jetted from a surface of the ink due to the bubble generated in the ink.
摘要:
A liquid jet recording head includes a base member, a liquid layer maintained on the base member and a plurality of heater elements, arranged in a line on the base member, for supplying energy to liquid adjacent thereto, the energy operation portions being put under the liquid layer. A method for making a liquid drop fly from the liquid jet recording head onto a recording sheet so that a dot image is formed on the recording sheet includes steps of (a) generating a bubble in the liquid to which the energy is supplied by each of energy operation portions in accordance with image data; (b) making the bubble grow up until a predetermined size of the bubble is obtained; (c) contracting the bubble under a condition where each of the energy portions supplies no energy to the liquid in which the bubble is formed; and (d) making the bubble disappear into the liquid.
摘要:
A liquid jet recording head includes a heater element which comprises a heat reserve layer, a resistance layer formed on the heat reserve layer, electrodes electrically connected to the resistance layer, the resistance layer generating heat when an electrical current is supplied to the resistance layer via the electrodes, and a protection layer stacked on the resistance layer, the heat generated by the resistance layer being transmitted to the liquid via the protection layer. The heater element has a special part in which a width of the resistance layer is greater than that thereof in a normal part of the heater element, the special part including a position where the bubble disappears, so that a electric current density in the resistance layer in the special part is less than that thereof in the normal part.
摘要:
A magnetization reversal device includes a ferromagnetic 12 body which is provided in an interconnection of a non-ferromagnetic dot 11 so that a part or a whole of the ferromagnetic dot is three-dimensionally buried in the interconnection of said non-ferromagnetic dot, and a spin injection source 13 which generates a spin-polarized pure spin current without a flow of charges, and which is provided in the interconnection of the non-ferromagnetic dot 11 to be in contact therewith so that the interconnection of the non-ferromagnetic dot serves as a common electrode, and the pure spin current flows into the ferromagnetic dot 2 through the interconnection of the non-magnetic body by the spin injection source 13 due to a diffusion current, to thereby reverse magnetization of the ferromagnetic dot 12. By injecting the pure spin current, using this planar structure, it is possible to easily carry out the magnetization reversal of the ferromagnetic dot 12 even if it is a thick film ferromagnetic dot without being subjected to limitation of a spin diffusion length.
摘要:
An air conditioning apparatus 1 includes first start control and second start control as its start control. In the first start control, first outdoor heat exchangers 24a, 24b are controlled to function as evaporators and second outdoor heat exchangers 25a, 25b are controlled to function as condensers. Thus, even when the compressors 21a, 21b are driven on at a given rotation number, the discharge pressures thereof can be prevented from increasing, thereby being able to prevent the internal pressures of the compressors 21a, 21b from increasing. Also, after end of the first start control, the first outdoor heat exchangers 24a, 24b and second outdoor heat exchangers 25a, 25b are all controlled to function as evaporators, and the compressors 21a, 21b are driven on at a given rotation number. This can shorten the rising time of the heating capacity in the start of the normal heating operation.
摘要:
Disclosed is an image forming apparatus that includes a recording head for forming an image by discharging single color ink from plural nozzle sequences. The image forming apparatus includes a profile generating unit configured to generate a profile including discharging characteristics of the corresponding nozzle sequences and information indicating a positional relationship among the plural nozzle sequences, based on individual images of a predetermined pattern that have been formed by the corresponding nozzle sequences and images that have been formed by the nozzle sequences; and a driving condition determination unit configured to determine drive conditions of the corresponding nozzle sequences by referring to the profile.
摘要:
One embodiment provides a control valve filter device, including: a belt-like frame body curved into a ring shape so that its ends face each other, the frame body having an opening; a filter member provided in the opening of the frame body; an engagement claw extended from one of each of both corresponding lateral portions of the faced ends of the frame body; and a concave portion provided at the other of each of the both corresponding lateral portions of the faced ends of the frame body, so as to be engaged by the engagement claw, each concave portion being formed laterally of the opening of the frame body.