Patent application number | Description | Published |
20090169238 | Electrophotographic Printer - An electrophotographic printer is provided which can be cleaned so as to meet the requirement for high speed printing on a continuous web of paper as the printing medium and to make minimum the amount of toner that remains on the surface of a rotating transfer roller even in high-speed production. | 07-02-2009 |
20090169254 | ELECTROPHOTOGRAPHIC PRINTER - An electrophotographic printer in which a photoconductor drum and a transfer drum can be supported in a simple component construction and in the makeup free from misalignment and development of thrust load. To this end, an electrophotographic printer comprising a photoconductor drum ( | 07-02-2009 |
20090169278 | Photoconductor Drum Cleaning Apparatus in an Electrophotographic Printer - A photoconductor drum cleaning apparatus in an electrophotographic printer is disclosed which is simple in makeup, which allows a wiping roll to be rotated to follow rotation of the photoconductor drum is rotated and to be serviced for a prolonged life and is capable of performing an improved cleaning operation. To this end, the photoconductor drum | 07-02-2009 |
20100124431 | ELECTROPHOTOGRAPHIC PRINTER - To meet with the requirement for high-speed printing with continuous paper used as its recording medium and to better clean a transfer roller surface in high-speed production as well, an electrophotographic printer is provided comprising: a carrier liquid supply unit | 05-20-2010 |
20100194814 | INK JET RECORDING APPARATUS - An ink jet recording apparatus in which a fabric as a recording medium is intermittently conveyed in an ink jet recording section is capable of printing an image on the fabric with precision and at high quality. The ink jet recording section of serial printing type includes a conveyer for intermittently conveying the fabric. Printing on the fabric intermittently conveyed in the ink jet recording section, the fabric printing ink jet recording apparatus with the conveyer intermittently conveying the fabric while it is temporarily stuck on the conveyer, includes: a feed roll for continuously feeding the fabric onto an upstream end of the conveyer, and a dancer roll unit, the feed roll and dancer roll unit being disposed upstream of the ink jet recording section in order from upstream in the traveling direction of the fabric; and a drying section, and a traction roll for continuously pulling the fabric from a downstream end of the conveyer for unsticking the fabric from the latter, the drying section and traction roll unit being disposed downstream of the ink jet recording section in order from upstream in the traveling direction of the fabric. | 08-05-2010 |
20100194821 | INK JET RECORDING APPARATUS - An ink jet recording apparatus in which a head supporting plate having a line head mounted thereon which comprises a plurality of short heads staggered is attached to a carriage whereby recording is performed by ink jet printing with the line head on a recording medium positioned beneath the carriage is rendered capable of using ordinary short heads. | 08-05-2010 |
20100196055 | WET TYPE DEVELOPING APPARATUS - A wet type developing apparatus is disclosed which can eliminate the need to provide a separately built cleansing unit and, moreover, makes it unnecessary to dismount a developer supply unit for its cleansing operation and to perform its subsequent re-mounting operation. | 08-05-2010 |
20100284709 | Wet Type Electrophotographic Printer - To remove a surplus carrier liquid after development on the surface of a photoconductor drum to obtain homogeneous printed images without being affected by an error in rotational accuracy of such as a carrier liquid removing roller, there is provided a wet type electrophotographic printer in which the carrier liquid removing roller | 11-11-2010 |
20110013942 | Wet Type Developing Apparatus - A wet type developing apparatus in which a liquid developer is fed onto a developing roller from a liquid developer supply roller immersed in the developing liquid within a liquid developer tank and an electrostatic latent image formed on a photoconductor drum is developed into a toner image by said developing roller is improved to enable the liquid developer to be kept fed at an appropriate amount of feed from the liquid developer supply roller onto the developing roller without air residual in the surface region of the liquid developer supply roller. The improvement comprises a partition plate disposed generally under the liquid developer supply roller within the liquid developer tank for partitioning the liquid developer tank into two in the direction of rotation of the liquid developer supply roller, the partition plate having its upper end juxtaposed with a peripheral surface of the liquid developer supply roller over its total axial length across a gap spacing between 0.05 and 0.5 mm. | 01-20-2011 |
20110181658 | INK JET RECORDING APPARATUS - Fluttering of paper traveling opposite to and parallel to a nozzle width region of an ink jet head is held down, thereby improving the printing quality. | 07-28-2011 |
20110181662 | INK JET PRINTER - In an ink jet printer having a plural number of line heads arranged in a paper printing direction, it is sought to render the printing density high in the nozzle row direction without the need to exchange the line heads. | 07-28-2011 |
20110199452 | METHOD AND APPARATUS FOR CORRECTING PRINT IMAGES IN AN ELECTROPHOTOGRAPHIC PRINTER - A method of correcting print images in an electrophotographic printer wherein an image formed by a print head ( | 08-18-2011 |
20110249990 | WET TYPE DEVELOPING APPARATUS AND WET TYPE DEVELOPING METHOD - A wet type developing apparatus is provided which allows printing in a quality that is stable at an increased printing speed and also with changes in physical property of a liquid developer. The wet type developing apparatus to this end includes a liquid developer feed pathway which comprises a developing roller | 10-13-2011 |
20110274466 | WET TYPE DEVELOPING APPARATUS - A wet type developing apparatus comprises a set charger positioned opposite to a surface of the developing roller, a liquid developer applying means disposed at one of a position is opposite to a surface of the developing roller and a position opposite to a surface of the cleaning roller, a first cleaning blade disposed in contact with a surface of the cleaning roller downstream the area of rotational contact of the cleaning roller with the developing roller in the rotation direction of the cleaning roller and a second cleaning blade disposed in contact with a surface of the developing roller downstream of the area of rotational contact of the cleaning roller with the developing roller in the rotation direction of the developing roller. | 11-10-2011 |
20120007915 | Discharge Ink Collecting Apparatus - It is sought to have a cap member sized to cover the entire lower surface of an ink jet head having numbers of nozzle heads, to improve intimacy of contact of the cap member with a carriage of the ink jet head, to obtain an enhanced airtightness between them and to enable the cap member to be manufactured roughly and at low cost. | 01-12-2012 |
20120038706 | Line Head Wiping Method - A method of wiping a line blade with a blade is disclosed that prevents premature wear and break of the blade and preserving its elastic deformation from soiling the environment. Accordingly, in the method of wiping the line head | 02-16-2012 |
20120128395 | Sheet-Fed Duplex and Sheet-Fed Duplex Multi-Color Printers - A sheet-fed duplex printer comprises a pair of impression cylinders | 05-24-2012 |
20120195659 | Sheet-Fed Duplex and Sheet-Fed Duplex Multi-Color Printers - A sheet-fed duplex and a sheet-fed duplex multi-color printer which is compact, using an electrophotographic printing system. For a long image to be printed on both faces of a sheet of paper, the printer enables producing printed matter at high efficiency and high precision, and yet when printing front and rear faces of a sheet of paper in succession the printer is able to prevent a printing face of the sheet of paper printed on upstream in its conveyance direction from becoming soiled by toner transferred from a printing face of the sheet of paper printed on downstream in its conveyance direction. | 08-02-2012 |
20120195666 | Electrophotographic Apparatus - An electrophotographic apparatus that can effect favorable transfer of a toner image onto a medium under a nip pressure between a transfer roller and a backup roller and a potential difference between the transfer and backup rollers even if the medium has a high insulating property, such as due to its being thick. | 08-02-2012 |
20120242735 | Digital Printing Method and a System Therefor - Images, one per page, are printed by a digital printer consecutively on a web of paper fed to travel forward. A timing mark is printed for each image. In case printing is temporarily halted, the web of paper is first fed backward, and then it is fed forward again. The number of timing marks in each of the backward feed and forward feed of the web of paper are counted. When the number of counts of the timing marks counted in the forward feed coincides with the number of counts of the timing marks counted earlier in the backward feed, printing of consecutive images is reinitiated from a position immediately following an image last printed before printing was temporarily halted. | 09-27-2012 |
20120249652 | Duplex Printing Apparatus - A duplex printing apparatus designed and adapted to efficiently print on both surfaces of a web of paper using a single digital printer. | 10-04-2012 |
20130061770 | DIGITAL SHEET-FED PRINTING METHOD - A digital sheet-fed printing method includes providing one cycle of printing to print on a series of sheets of paper whose number is equal to the least common multiple of respective numbers of allocated positions; producing a reference signal on the basis of which an image in each color is printed on the sheet of paper; detecting with an image detection sensor means a mutual out of register between images in different colors printed on each sheet of paper in the series, furnishing the printing control means with a detection signal for each sheet of paper from the image detection sensor, and correcting the timing at which each image is printed on each sheet of paper in one cycle of printing so that timings to print the images in different colors on each sheet of paper coincide with one another; and printing images in the different colors. | 03-14-2013 |
20130101325 | FIXING APPARATUS FOR A SHEET-FED ELECTROPHOTOGRAPHIC PRINTER - A fixing apparatus includes a fixing drum having a heating heater internally equipped therein, the fixing drum positioned spaced part and downstream from a sheet delivery site at a downstream-most side of printing units and is adapted to rotate at a peripheral speed identical to a speed of travel of the sheet of paper. A first sprocket is positioned adjoining the sheet delivery site at the downstream-most side of the printing units, and a second sprocket is positioned coaxially with the fixing drum and being adapted to rotate integrally with the fixing drum. A conveyer chain having a gripper is wound around and engaging with the first and second sprockets to wind and convey a sheet of paper on a peripheral surface of the fixing drum upon gripping in turn with the gripper the sheet of paper traveling from the sheet delivery site at the downstream-most side. | 04-25-2013 |
20130129374 | TRANSFER ROLLER CLEANING APPARATUS AND ELECTRONIC PHOTOGRAPH PRINTER - Provided are a transfer roller cleaning apparatus that has a supply roller that is immersed in the carrier liquid in a carrier liquid vessel; a cleaning roller that is rubbed and rotated on the supply roller and the transfer roller, and supplies the carrier liquid received from the supply roller to a surface of the transfer roller; and a carrier liquid circulation device which includes the carrier liquid vessel, supplies the carrier liquid in a storage tank to the carrier liquid vessel using a pump, and sends the carrier liquid overflowed from the carrier liquid vessel back to the storage tank via an overflow liquid recovery path, so as to constitute a carrier liquid circulation path and an electronic photograph printer configured by providing the same. | 05-23-2013 |
20130155131 | DIGITAL PRINTING METHOD AND AN APPARATUS THEREFOR - A digital printing method includes printing timing marks for each of images; in reprinting after printing is temporarily suspended, feeding a web of paper to travel backwards so that a plurality of images and timing marks printed thereon before printing is temporarily suspended move towards upstream of a digital printer and thereafter feeding the web of paper to travel forwards again, and counting by mark sensors, upstream of the digital printer, the number of such timing marks moving in each of the backward feed and forward re-feed of the web of paper; and when the number of counts of the timing marks counted in the forward re-feed coincides with the number of counts of the timing marks counted in the backward feed, reinitiating to print consecutive images from a position following an image last printed before printing is temporarily suspended. | 06-20-2013 |
20130215198 | INKJET RECORDING APPARATUS - To provide an inkjet recording apparatus capable of preventing nozzle clogging, capable of aligning the nozzle positions of line heads precisely and easily, and capable of adjusting the number of the line heads. | 08-22-2013 |
20130294790 | APPARATUS FOR DETECTING A TONER DENSITY OF A LIQUID DEVELOPER - A deaerator and a density detector are provided in a liquid developer circulating path through which the liquid developer in a main tank is circulated, wherein the deaerator includes a bundle of hollow fibers each forming a hollow fiber membrane whose inside is depressurized and over whose outer peripheral surface the liquid developer is forced to flow under pressure, thereby sufficiently removing dissolved air in the liquid developer, and a toner density of the liquid developer is detected when the liquid developer of which dissolved air is sufficiently removed is passed through the density detector utilizing ultrasonic waves, making it possible to detect the toner density with a high degree of precision. | 11-07-2013 |
20130342596 | RECORDING METHOD USING INKJET RECORDING APPARATUS - A recording method using an inkjet recording apparatus, which can obtain a recorded material excellent in image quality and is excellent in productivity is provided. | 12-26-2013 |
20140031189 | METHOD OF HALF-CUT CUTOUT PROCESSING OF LABEL PAPER - A method of half-cut cutout processing of label paper | 01-30-2014 |
20140041808 | LABEL PAPER WASTE REMOVING METHOD AND APPARATUS - A waste removing method capable of easily carrying out a waste removing operation to peel a label sheet waste off a base sheet. A label sheet | 02-13-2014 |
20140043381 | INKJET RECORDING APPARATUS - An inkjet recording apparatus which can make a distribution tank compact and has excellent pressure-control precision is provided. | 02-13-2014 |
20140044469 | PAPER CONVEYING APPARATUS IN A PRINTING MACHINE - In a printing machine, it is enabled to prevent continuous paper from being broken when the continuous paper is initially fed through a path of its conveyance. | 02-13-2014 |
20140123864 | PRINTER CYLINDER ASSEMBLY FOR A PRINTING MACHINE - A printing cylinder assembly for a printing machine having a sleeve cylinder which can be simply coupled to and decoupled from a rotating shaft and which can be exchanged easily. The sleeve cylinder is mounted to fit on the rotating shaft so that it can be fitted on, and be extracted from, the rotating shaft, constituting a printing cylinder. The rotating shaft is provided with a cam shaft and a coupling member that constitutes a coupling mechanism. In a coupling and a decoupling state which the coupling mechanism comes into, rotations of the cam shaft cause the coupling member to couple and decouple the sleeve cylinder to and from the rotating shaft when the coupling member is diametrically urged against, and parted from, the inner diametric surface of the sleeve cylinder, respectively. | 05-08-2014 |
20140130688 | VARIABLE PRINTING MACHINE - A variable printing machine for printing images different in top-bottom length with a plate and a blanket cylinder changed in diameter, is provided in which the plate and blanket cylinders and an impression cylinder can be brought into a proper state of contact with one another. Each of a plate cylinder shaft | 05-15-2014 |
20140231572 | WINDING APPARATUS - An arm for guiding paper fed along a paper feed path is swingably supported at its base end portion on one side of the winding core. The arm is provided with a free roll, on which the paper is guided to pass onto the winding core. At its free end portion, the arm has a roller rotatably mounted thereon which constitutes a body of rotation contacting with the paper roll so that with the winding core rotated and with the roller pressed against the paper roll the paper may be wound up into the paper roll on the rotating winding core without the occurrence of a paper winding wrinkle, whereby with a distance held constant at all times between the feed roll and the roller along a paper winding path, paper winding without such wrinkling can be achieved to yield a paper roll that is large in its maximum diameter. | 08-21-2014 |
20140294454 | ELECTROPHOTOGRAPHIC METHOD - An electrophotographic apparatus and method that can effect favorable transfer of a toner image onto a medium under a nip pressure between a transfer roller and a backup roller and a potential difference between the transfer and backup rollers even if the medium has a high insulating property, such as due to its being thick. | 10-02-2014 |
20140335286 | LABEL PAPER PROCESSING METHOD AND APPARATUS - A label paper processing method includes printing a print image on label paper with a cutting locus along a contour of a shape to be cut out, using a printer in which the label paper is fed to travel intermittently. While the printed label paper is fed to travel continuously, it is half-cut with a laser beam irradiated along the printed cutting locus, thereby forming a half-cutout in the label paper. Operations of control and adjustments of a cutting depth are reduced, and a precisely cut label sheet is obtained without cutting the supporting sheet. | 11-13-2014 |
20150078798 | LABEL PAPER PROCESSING APPARATUS - A label paper processing apparatus includes a paper supply unit for supplying and feeding label paper, a digital printing unit for printing the label paper, a laser processing unit, and a pair of loop forming unit disposed between the paper supply unit and the digital printing unit, and between the digital printing unit and the laser processing unit, respectively, each forming a loop of the label paper. The laser processing unit is designed to half-cut the printed label paper and to form cutouts of a shape along a printed cutting locus with a laser beam so as to scan and trace the printed cutting locus, thereby facilitating control in half-cutting of the label paper. The loop forming unit is designed to form a loop of the label paper and to hold a length of the loop substantially constant so as to control feeding of the label paper. | 03-19-2015 |