摘要:
An ink jet recording head comprises a substrate having the element surface provided with energy generating elements for generating energy to be used for discharging ink, a ceiling plate provided with the grooved surface having grooves to become ink passage corresponding to the energy generating elements, the grooved surface and the element surface being bonded to form the ink passage, a base plate for supporting the substrate from the side opposite to the element surface, and an ink supply member being in contact with the base plate at a contact portion, having the ink flow path wall face to be communicated with the ink passage. For this recording head, the base plate and the ink supply member pinch the substrate and the ceiling plate at the contact portion as a fulcrum so as to enable the base plate to press the substrate from the side opposite to the element surface, and the ink supply member to press the ceiling plate from the side opposite from the grooved surface. Thus, the member that enables the ceiling plate and the substrate to be closely in contact, and the member for supplying ink are arranged to be commonly functional as an ink supply member to make it possible to omit the provision of any spring member to be used only for keeping the close contact of the ceiling plate and the substrate, thus curtailing the number of parts.
摘要:
A method for making an orifice plate (40) for an ink-jet printer. The orifice plate defines both the orifices (42, 44) and the connected ink chambers (60, 62). The orifice plate is constructed to permit, in the same print head (26), one chamber (or orifice) to be deeper (as well as, if desired, wider and longer) than another chamber (or orifice) that may be next to the first chamber. Similarly, a channel (64) delivering ink to the first chamber (60) may be configured to be deeper or shallower, as needed, relative to another channel (66) in the orifice plate.
摘要:
A method for making an orifice plate (40) for an ink-jet printer. The orifice plate defines both the orifices (42, 44) and the connected ink chambers (60, 62). The orifice plate is constructed to permit, in the same print head (26), one chamber (or orifice) to be deeper (as well as, if desired, wider and longer) than another chamber (or orifice) that may be next to the first chamber. Similarly, a channel (64) delivering ink to the first chamber (60) may be configured to be deeper or shallower, as needed, relative to another channel (66) in the orifice plate.
摘要:
A fiducial system (10) is provided for use during an alignment inspection of first and second adjacent elements (20,30). The fiducial system comprises an inspection opening (34) in the second element (30). It further comprises first and second fiducial portions (50,51) on the first element (20) positioned and sized to provide an accurate indication when viewed through the inspection opening (34) of whether the second element (30) is properly positioned relative to the first element (20) regardless of the size of the inspection opening (34) as long as the opening has a size greater than or equal to a lower limit dimension. The first element (20) may comprise an ink jet printhead heater chip (22) and the second element (30) may comprise an ink jet printhead nozzle plate (32).
摘要:
A lubricative polymer containing liquid comprising a lubricative polymer, preferably a fluorine based polymer, having a coating forming capacity and solved or dispersed in a liquid medium, which has a cyclic fluorine hydrocarbon as its main component. Film of a lubricative polymer having a good performance is formed by spreading the lubricative polymer containing liquid on surfaces of, for example, a magnetic recording hard disk, ink jet recording head, a cleaning blade of an image forming device and the like, and removing the liquid medium.
摘要:
The invention provides improved methods for making ink jet printer nozzle plates and to nozzle plates made by the method. In the method, a polymeric film having a polymeric layer, an adhesive layer and a protective layer over the adhesive layer is ablated in order to produce flow features comprising ink flow channels (16), firing chambers (14), nozzle holes (18) and an ink supply region (24). Once the flow features are formed, the protective layer is removed from the polymeric film so that the nozzle plate can be attached to a semiconductor substrate. In the method a portion (26) of the polymeric material in the ink supply region (24) remains substantially unablated in order to reduce the debris produced during the ablation step. By reducing the amount of debris, removal of the protective layer after ablation is enhanced.
摘要:
A method for manufacturing a liquid jet recording head includes a first process of forming an ink flow passage pattern on a substrate by a resin layer; a second process of forming a covering resin layer to cover a resin layer on the resin layer; a third process of forming an ink discharging port pattern by a material having resistance to an oxygen plasma on the surface of the covering resin layer; a fourth process of forming ink discharging ports by dry etching the resin layer by the application of the oxygen plasma with the ink discharging port pattern as a mask; and a fifth process of eluting the resin layer. This method enables the ink discharging ports to be formed without cutting the substrate and at the same time, the distance between the ink discharging pressure generating elements and the orifices to be controlled rigidly; hence making it possible to manufacture a liquid jet recording head having a stabilized discharging characteristic.
摘要:
An ink jet recording head wherein at least peripheral portions of discharge ports comprise a film which contains a polymer having a fluorine heterocyclic structure in the principal chain.