Patent application number | Description | Published |
20080252689 | LIQUID DISCHARGE HEAD AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a liquid discharge head including an energy generating element, which generates energy utilized for discharging a liquid, and a discharge portion provided at a position facing the energy generating element and having a discharge port for discharging the liquid is provided. This method includes the steps of forming a negative photosensitive resin layer used for a member that forms the discharge port on the substrate, and exposing the layer to an i-line to form the discharge portion that is tapered in a direction from the substrate to the discharge port, wherein the layer has an absorbance per 1 μm thickness of about 0.02 to about 0.07 for light used for the exposure. | 10-16-2008 |
20090167812 | LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE SAME - Provided is a method of manufacturing a liquid discharge head including: forming a first pattern for forming the flow path on the substrate; forming a first coating layer which covers the first pattern; forming a hole in the first coating layer, through which the first pattern is exposed; forming a second pattern for forming the flow path on the first coating layer, such that the second pattern contacts with the first pattern through the hole; forming a second coating layer for covering the second pattern; forming the discharge port in the second coating layer; and removing the first pattern and the second pattern to form the flow path. | 07-02-2009 |
20090267997 | INK JET HEAD - An ink jet head includes a substrate having an ink supply port; an ejection outlet for ejecting ink supplied through the supply port; a flow path portion which provides fluid communication between the supply port and the ejection outlet; wherein the flow path portion includes a near portion which is near to the substrate and a remote portion which is remote from the substrate, and a width of the near portion is different from a width of the remote portion in a sectional plane perpendicular to a direction of flow of the ink, and wherein a stepped portion is provided between the near portion and the remote portion. | 10-29-2009 |
20100037460 | LIQUID DISCHARGE HEAD AND MANUFACTURING METHOD OF THE SAME - A liquid discharge head includes a substrate having an energy generating element configured to generate energy required to discharge liquid, a discharge port configured to discharge the liquid and provided in an opposed relationship to the energy generating element, a wall member defining a chamber adapted to store the energy required to discharge liquid the energy being generated by the energy generating element, a discharge portion defining a fluid path connecting the chamber and the discharge port, a supply path facilitating supplying the liquid into the chamber, and a pair of hollow portions provided in the wall member, wherein the hollow portions oppose each other and sandwich at least the entire discharge port in a direction from the discharge port to the substrate, and the hollow portions are independent of the chamber. | 02-18-2010 |
20100156990 | LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE LIQUID DISCHARGE HEAD - A liquid discharge head includes an Si substrate which is provided with an element for generating energy used in discharging a liquid and a liquid supply port which is provided to pass through the Si substrate from first surface to rear surface so as to supply a liquid to the element. A method of manufacturing the substrate includes: forming a plurality of concave portions on the rear surface of the Si substrate of which a plane orientation is {100}, the concave portions facing the first surface and aligned in rows along a <100> direction the first surface; and forming a plurality of the supply ports by carrying out a crystal axis anisotropic etching on the Si substrate through the concave portions using an etching liquid of which an etching rate of the {100} plane of the Si substrate is slower than that of the {110} plane of the Si substrate. | 06-24-2010 |
20100159405 | METHOD OF MANUFACTURING STRUCTURE AND METHOD OF MANUFACTURING INK JET HEAD - According to the fine pattern manufacturing method of the invention, the residue of a pattern which is obtained by pressing a mold is prevented from occurring, so that the structure can be more easily manufactured. | 06-24-2010 |
20110206861 | MANUFACTURING METHOD OF LIQUID DISCHARGE HEAD - This invention relates to a manufacturing method of a liquid discharge head comprising: forming an active energy ray-curable resin layer on a surface of a substrate on which discharge energy generating elements are formed, attaching a material permeable to active energy rays onto a surface of the active energy ray-curable resin layer, pressing against the material permeable to active energy rays, a master mold being transparent to the active energy rays and having protrusions corresponding to a pattern of discharge ports so as to transfer the protrusions to the material permeable to active energy rays, selectively irradiating the active energy ray-curable resin layer with active energy rays according to a pattern of liquid flow paths so as to cure the active energy ray-curable resin layer, removing the master mold, and removing uncured portions of the active energy ray-curable resin layer. | 08-25-2011 |
20120147407 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus comprises a movement unit which moves a carriage incorporating a print head along a carriage shaft arranged in a main scanning direction, and a conveyance unit which conveys a printing medium in a sub-scanning direction perpendicular to the main scanning direction. The printing apparatus stores image data. The image data is divided into a plurality of first image data in the main scanning direction and the sub-scanning direction, and is read out. Predetermined image processing is executed based on the first image data and first image data adjacent to the first image data in the sub-scanning direction. Second image data is extracted, based on information about a deflection of the carriage shaft in the sub-scanning direction, from the first image data for which the image processing has been executed. The extracted second image data is transferred to the print head. | 06-14-2012 |
20120222308 | METHOD FOR MANUFACTURING LIQUID EJECTION HEAD - A method for manufacturing a liquid ejection head which has an ejection port ejecting a liquid and a flow path communicating with the ejection port, includes a first step of preparing a substrate on which a first layer and a second layer are evenly laminated in this order; a second step of forming a member (A) for forming the ejection port from the second layer; a third step of forming a mold for forming the flow path from the first layer; a fourth step of providing a third layer so as to cover the mold and so as to come into close contact with the member (A); and a fifth step of removing the mold to form the flow path. | 09-06-2012 |
20120229538 | PRINTING APPARATUS - A printing apparatus comprises: a printhead, which has a heater board on which heaters are disposed, configured to discharge ink; a transfer unit configured to transfer a discharge image signal to the printhead; and a power supply circuit configured to generate power for heating the heaters. Here, the printhead includes a supply circuit which, based upon the discharge image signal, supplies the heater board with power generated by the power supply circuit. | 09-13-2012 |
20130057619 | LIQUID DISCHARGE HEAD AND METHOD OF MANUFACTURING THE SAME - Provided is a method of manufacturing a liquid discharge head including: forming a first pattern for forming the flow path on the substrate; forming a first coating layer which covers the first pattern; forming a hole in the first coating layer, through which the first pattern is exposed; forming a second pattern for forming the flow path on the first coating layer, such that the second pattern contacts with the first pattern through the hole; forming a second coating layer for covering the second pattern; forming the discharge port in the second coating layer; and removing the first pattern and the second pattern to form the flow path. | 03-07-2013 |
20130152390 | PROCESS FOR PRODUCING A LIQUID EJECTION HEAD - Provided is a process for producing a liquid ejection head which includes a substrate having an energy generating element and a wall member joined with the substrate to form an ejection orifice which ejects liquid and a flow path which communicates to the ejection orifice, the process including, in the following order, the steps of (B) forming, on the substrate, a flow path pattern form for forming the flow path, (C) forming, around the flow path pattern form, a cover resin layer for forming the wall member, and (D) transferring a surface form of the substrate to a surface of the cover resin layer so as to correspond to a pattern of the surface form of the substrate. | 06-20-2013 |
20140368566 | MEASUREMENT APPARATUS, PRINTING APPARATUS AND CONTROL METHOD - A carriage including a sensor scans a printing medium, and a measurement value measured by the sensor is stored in a memory over the scanning range. When a predetermined event occurs, storage control for storing the measurement value in the memory is performed. | 12-18-2014 |