Abstract: An inkjet recording apparatus 100 is provided with a fabric feeding section A having a medium for recording 1 composed of a fabric, an inkjet section B for performing inkjet recording on the medium for recording 1 fed from the fabric feeding section A to form a recorded medium 1a, and a treating section C1, C2 having a drying section 11, 21 for drying the recorded medium 1a and a collecting section 12, 22 for collecting the dried recorded medium, the drying section 11, 21 and the collecting section 12, 22 being integrated with each other, where the treating section C1, C2 is attachable to and detachable from the inkjet section B.

Abstract: An inkjet recording apparatus of a line head type where a resolution can be changed simply, and locating of nozzles can be performed simply and accurately is provided.

Abstract: An inkjet recording apparatus 100 is provided with a fabric feeding section A having a medium for recording 1 composed of a fabric, an inkjet section B for performing inkjet recording on the medium for recording 1 fed from the fabric feeding section A to form a recorded medium 1a, and a treating section C1, C2 having a drying section 11, 21 for drying the recorded medium 1a and a collecting section 12, 22 for collecting the dried recorded medium, the drying section 11, 21 and the collecting section 12, 22 being integrated with each other, where the treating section C1, C2 is attachable to and detachable from the inkjet section B.

Abstract: In an electrophotographic sheet-fed front/back printing machine which is capable of duplex printing and which can be installed in a reduced space, sheets of paper fed from a sheet supply are fed out by a sheet transport conveyer onto an impression cylinder of an electrophotographic printing section in which each of the sheets are printed on one side. The sheets printed on one side are turned over from front to back by a sheet turnover transport unit and are allowed to fall and be supplied onto the sheet transport conveyer. The sheets are each fed again onto the impression cylinder and printed on the remaining other side. Sheets printed on both sides are transported by a printed-sheet transport unit to a print output receptacle in which they are received.

Abstract: 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 4b of label paper 4 being conveyed along a path of label paper conveyance 1 is formed with a cut line 4h for peeling-off; an upstream side portion 4i of label sheet bordered and starting with the cut line 4h is peeled off a base sheet 4a, and the portion of label sheet 4b peeled off is carried to and wound onto a waste take-up member 20 whereby winding the peeled-off portion of label sheet 4b onto the waste take-up member 20 causes a label sheet waste 4g of succeeding label paper 4 to be peeled off the base sheet 4a and taken up onto the waste take-up member. The waste removing operation can be carried out automatically.

Abstract: 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.

Abstract: A drum-type drying device according to the invention includes a cylindrical drum section that is rotatably supported and rotated by winding a base material on the drum section, engaging portions that are disposed in an inner cavity of the drum section, and a heating section that includes engaged portions detachably engaged with the engaging portions.

Abstract: 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.

Abstract: 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. The paper conveying apparatus is provided that the path of conveyance of continuous paper 1 is provided with a first, a second and a third feed roll unit 5, 6 and 7, having their respective feed rates which when continuous paper is printed on and machined are controlled to increase in the order of the feed roll units to generate a proper amount of tension imparted thereto and which when the continuous paper is initially fed through the path are controlled to decrease in the order of the feed roll units so as not to generate tension whereby the continuous paper is prevented from being broken in the course of initial paper threading in the printing machine.

Abstract: 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.

Abstract: The present invention is directed to an inkjet recording apparatus 100 capable of performing recording continuously on both surfaces of a web 1, including a plurality of recording heads H1 to H8 disposed on a substrate, driers 5a and 5b for drying the web 1 recorded by the recording heads H1 to H8, and guide rollers A1 to A8, B1 to B8, and G1 to G8 for guiding the web 1, in which a traveling path of the web 1 is switchable so that the web 1 passes between any selected adjacent ones of the recording heads H1 to H8, the recording head upstream of the position where the web passes performs recording on one surface 1a of the web 1, and the recording head downstream of the position where the web 1 passes performs recording on the other surface 1b of the web 1, and an inkjet recording method using the same.

Abstract: 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.

Abstract: An inkjet recording apparatus which can make a distribution tank compact and has excellent pressure-control precision is provided with an inkjet portion A having a recording head 11 for applying ink to a recording medium 1 and a distribution tank 12 for supplying ink to the recording head 11, an ink supply means B having a main tank 21 for supplying ink to the distribution tank 12, and an air supply means C having an air chamber 31 communicating with a space 12ain the distribution tank 12 and a pressure adjustment mechanism provided on the air chamber 31 via a solenoid valve, where the pressure of the space 12a and the internal pressure of the air chamber 31 are equal to each other.

Abstract: An ink supply device for an inkjet recording apparatus including a back pressure tank 21, a distribution tank 12, a plurality of ink opening/closing electromagnetic valves 13, and a plurality of recording heads 14, in which the distribution tank 12 is connected to the back pressure tank 21 via an ink supply path 24, the plurality of ink opening/closing electromagnetic valves 13 is directly attached to the distribution tank 12 while being connected to the plurality of recording heads 14 via a distribution supply pipe 15 and the distribution tank 12 contains a humidification heater 71 for humidifying ink and a temperature sensor 72.

Abstract: 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.

Abstract: An inkjet recording apparatus 10 includes a first plate 20a having line heads 11a aligned thereon, a coupling portion 21 jointed to the first plate 20a, a drive device 30 sliding the first plate 20a via the coupling portion 21 from a waiting position P1 in which the line heads wait to a recording position P2 in which recording is performed on a recording medium 1, and a second plate 20b having at least one line head 11b thereon and being attachable to and detachable from the coupling portion 21, wherein only the first plate 20a is slidable when the second plate 20b is detached from the coupling portion 21, and the first plate 20a and the second plate 20b are integrally slidable when the second plate 20b is attached to the coupling portion 21.

Abstract: 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.

Abstract: In an electrophotographic sheet-fed front/back printing machine which is capable of duplex printing and which can be installed in a reduced space, sheets of paper fed from a sheet supply are fed out by a sheet transport conveyer onto an impression cylinder of an electrophotographic printing section in which each of the sheets are printed on one side. The sheets printed on one side are turned over from front to back by a sheet turnover transport unit and are allowed to fall and be supplied onto the sheet transport conveyer. The sheets are each fed again onto an impression cylinder and printed on the remaining other side. Sheets printed on both sides are transported by a printed-sheet transport unit to a print output receptacle in which they are received.

Abstract: 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.

Abstract: 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.