摘要:
Disclosed is a thermal printhead made of an insulating substrate, and a heat generating resistor layer formed on the substrate, and wherein the heat generating resistor layer is supplied with electric current. The heat generating resistor layer is made of Cr-Si-SiO alloy, and with the Cr, Si and SiO contents falling within a region defined by points A, B, C and D in a triangular diagram, where the points A, B, C and D are determined as follows:______________________________________ Cr (mol %) (Si (mol %) SiO (mol %) ______________________________________ A 79.4 2.1 18.5 B 58.6 40.9 0.5 C 10.1 89.4 0.5 D 24.4 3.7 71.9. ______________________________________
摘要:
A thermal printhead comprising a substrate, heat generating thin film resistor bodies formed on the substrate and electric conductors for supplying the heat generating thin film resistor bodies with electric power, characterized in that the heat generating thin film resistor bodies are made of a Cr-Si alloy subjected to a stabilization aging heat treatment.
摘要:
The inkjet recording head includes a head body and a metallic film is provided at least on a part of at least one side of the head body. The head body includes a plurality of orifices, an ink ejection unit arranged so as to correspond to each of the orifices, an independent ink flow path for supplying ink to each of the orifices and a common ink flow path for supplying ink to the independent ink flow path. The manufacturing method of the inkjet recording head forms the metallic film at least on a part of an opposite surface of a substrate to the individual ink flow paths, before adhering the orifice plate in which the orifices are formed. The inkjet printer uses the inkjet recording head.
摘要:
In an ink jet recording head, the thin-film thermal resistor is covered by an electrically-insulating oxidation film. An inorganic insulation layer is formed over a part of the thin-film thermal resistor and the thin-film conductor. An organic insulation layer is formed over at least a part of the inorganic insulation layer that covers the connecting edge of the connection portion between the thin-film thermal resistor and the thin-film conductor.
摘要:
In an ink jet recording head of the type in which a bubble generated in ink filling an ink channel ejects an ink droplet, a thin-film resistor that generates the bubble is protected from cavitation damage. To this effect, a particular portion of the resistor is covered with a tantalum layer. The thickness of the tantalum layer is from 0.1 to 0.2 microns.
摘要:
A liquid droplet ejecting recording head includes a wall defining a chamber for being filled with recording liquid, said wall having a portion for defining an orifice communicated with the chamber; and a thin-film resistor provided on a surface of the wall facing the chamber so as to be located in the chamber, the thin-film resistor having one surface facing the chamber with which the thin-film resistor may be exposed to the recording liquid contained in the chamber, the thin-film resistor being energized with pulsed electric current for generating pulsed heat to directly heat the recording liquid, to thereby allow the recording liquid to be ejected outside through the orifice from the chamber in the form of a droplet and to be attached onto a surface of image recording medium positioned in confrontation with the orifice.
摘要:
A thin-film thermal recording head, used in a facsimile machine or a thermal printer, including heat resistors formed from only a Cr--Si--SiO or Ta--Si--SiO alloy thin-film resistor layer and a chromium, molybdenum, nickel, or tungsten thin-film conductor layer. The heat resistor is formed on a substrate having a linear thermal expansion coefficient from room temperature to 300.degree. C. of 5.times.10.sup.-8 /.degree.C. or less. The heat resistor is also described having a thin anti- abrasion layer with thickness of 0.5 .mu.m or less. The thin-film thermal recording head is also described in monolithic form with a portion of the heat resistor formed to directly contact an output electrode of a drive LSI circuit. In this case, a double-layer thermal-insulation layer can be formed between the substrate and the portion of the heat resistor that contacts and heats heat-sensitive recording paper. The two layers of the thermal-insulation layer are formed from a heat-resistant resin and an inorganic insulator.
摘要:
An electrophotographic recording apparatus in which a thin endless metal belt having a photoconductive photosensitive layer on an outer circumferential surface is provided around a drive roller and an integrated heating and cooling unit, and rotated by the drive roller. A latent electrostatic image forming device (a corona charger and an exposing unit) is disposed adjacent to the outer circumferential surface of the metal belt that is near the drive roller, and a developing device is disposed downstream from the latent electrostatic image forming device adjacent the heating and cooling unit, so that a toner image formed on the metal belt by both devices is transferred and fixed while sequentially brought into pressure contact with a member to which to transfer the toner image. In another embodiment a multi-color electrophotographic recording apparatus is provided in which multi-color toner images are formed on the metal belt using at least two pairs of image forming and developing devices, each pair including a latent electrostatic image forming device and a developing device as in the above-mentioned electrophotographic recording apparatus. The multi-color toner images are then transferred to and fixed on the member by the integrated heating and cooling unit. The integrated heating and cooling unit includes a cooling member, a heater embedded in the cooling member and an insulating member interposed between the heater and cooling member.
摘要:
A method for producing a magnetic head, comprising the step of irradiating peripheral parts other than a track portion and/or a slider portion with a laser beam so as to selectively remove surface parts of the irradiated parts, thereby to form the track portion and/or the slider portion. According to this method, the track portion and/or the slider portion of the magnetic head can be worked at high working rate, at high precision and with low working deformation, with the result that the magnetic head of excellent reproduced output and crosstalk characteristics can be readily manufactured.