Patent application number | Description | Published |
20080239004 | INK JET PRINT HEAD AND METHOD OF MANUFACTURING INK JET PRINT HEAD - An ink jet print head is provided which allows an ejection opening-formed surface to be cleaned well and can improve a precision with which ejected ink lands on a print medium. For this purpose, conductive layers of a conductive material are formed on the support substrate and planarized. The liquid ejection substrates are mounted on the support substrate with high precision, without a sealing agent, that protects electrical connecting portions on the liquid ejection substrates, protruding from the ejection opening-formed surface. | 10-02-2008 |
20080309731 | INK JET PRINTING HEAD - A printing head is provided in which a distance between an ejection port face of the printing head and a print medium is reduced to improve an ink ejection accuracy during a printing operation. The printing head of the present invention is a back shooting-type printing head. The heater and an electrode connected thereto are formed at the back face of the substrate. The electrode and an in-support-base wiring for supplying electricity to the heater via the electrode are connected to each other at the back face side of the substrate. The substrate and the support base have therebetween a liquid chamber wall member including therein a space. The substrate, the support base, and the liquid chamber wall member constitute a liquid chamber that communicates with the ejection port and that stores ink supplied to the ejection port. | 12-18-2008 |
20100141722 | RECORDING APPARATUS - A recording apparatus has: a recording head having a liquid chamber and nozzles; a tank that stores the liquid which is supplied to the recording head; a liquid supply path that supplies the liquid from the tank to the liquid chamber; a supply pump provided on the liquid supply path; a liquid return path that returns the liquid from the liquid chamber to the tank; a return pump provided on the liquid return path; and a control unit that controls the supply pump and the return pump, wherein when the liquid is initially filled into the liquid chamber, the control unit drives the return pump so as to set the liquid chamber into a negative pressure state and subsequently drives the supply pump. The recording apparatus which can fill the liquid at a high speed without raising a pressure of a flow path can be provided. | 06-10-2010 |
20100271438 | LIQUID DISCHARGE HEAD AND METHOD FOR MANUFACTURING THE SAME - The present invention provides, in order to hermetically seal more surely a gap between a back surface of a liquid discharge substrate and a front surface of a support member, and an electrode portion etc. without adversely affecting discharge performance, wherein a liquid discharge head includes, first sealing resin coated on a portion between the liquid supply port and the pad on the support surface so as to surround a tip end portion at the liquid supply port of the support member and second sealing resin for sealing a gap between the support member and the liquid discharge substrate, and a peripheral part of the liquid supply port. | 10-28-2010 |
20100321425 | INKJET RECORDING APPARATUS - During a cleaning operation, the following steps are executed. The steps includes a first step of pressurizing ink in a supply path to overflow the ink from a nozzle, a second step of stopping the pressurization, a third step of executing wiping while the pressurization is stopped and a negative pressure is not applied, and a fourth step of applying a negative pressure to the ink at the nozzle to generate a meniscus. | 12-23-2010 |
20110063358 | INK JET PRINTING APPARATUS AND DRYING CONTROL METHOD FOR THE SAME - An ink jet printing apparatus according to the present invention includes a dryer configured to dry ink on a print medium. The dryer includes a heating unit configured to heat air in the dryer, and an outside air adjustment mechanism configured to adjust the amount of outside air introduced into the dryer. When the outside air adjustment mechanism is controlled so that the outside air introduction amount is increased, before the control of the outside air introduction amount, the heating unit is controlled so that heated air heated by the heating unit is preheated to a second target temperature higher than a predetermined first target temperature for a normal operation. Even if the outside air introduction amount is actually increased to temporarily reduce the temperature of heated air, the temperature of the heated air can be maintained at a value required for sufficient drying. | 03-17-2011 |
20110063366 | INK JET RECORDING APPARATUS - An inkjet recording apparatus efficiently recovers defective discharge while reducing the amount of waste ink, acquires position information of a defective discharge nozzle and, based on the position information, determines whether the defective discharge has been caused by a bubble or a dust particle, and selects an ink circulation mode or a wiping mode. | 03-17-2011 |
20110164101 | DRYING APPARATUS AND PRINTING APPARATUS - A drying apparatus includes: a rotatable belt which has an outer surface and an inner surface, the outer surface contacts a sheet; a blowing mechanism which blows hot air on the sheet at a side of the outer surface; and a heating unit which includes a heating element and a contact surface which is disposed in contact with the inner surface. A plurality of rollers are arranged in a direction in which the sheet travels. The rollers are pressed against the outer surface of the belt with the travelling sheet being held between the rollers and the outer surface of the belt. | 07-07-2011 |
20120105561 | TRANSFER INKJET RECORDING METHOD - A transfer inkjet recording method includes the step of applying an aggregating agent onto an image-forming face of an intermediate transfer member, having a pattern including lyophilic portions and a lyophobic portion, the step of forming an intermediate image by applying an ink onto the image-forming face, and the step of transferring the intermediate image to a recording medium from the image-forming face. The lyophilic portions include at least two types of portions having different areas. | 05-03-2012 |
20140354716 | INK JET PRINTING APPARATUS AND METHOD FOR ESTIMATING MOISTURE CONTENT OF PRINT SHEET - In an ink jet printing apparatus of the present invention, a moisture content of a print sheet is estimated without decreasing productivity of the printing apparatus and appropriate conditions of printing operation in the subsequent printing process are specified. More specifically, by measuring a change in thickness of the print sheet after printing, a state of moisture content is estimated. Estimating a state of moisture content allows determination of appropriate conditions of printing operation such as a minimum drying time required for printing a high-quality image on various types of print sheets such as print coated paper or coated paper. | 12-04-2014 |