Abstract: 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. The present invention is an inkjet recording apparatus 10 including a first plate 20a having a plurality of 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: A toner fixing apparatus characterized by provision of a provisional fixing portion provided with a provisional fixing component having an infrared heater irradiating infrared radiation onto a printed surface of the web and a main fixing portion provided downstream in the web flow in the provisional fixing portion and nipping the web with heat rollers performing a main fixing operation or having a plurality of main fixing units. According to this invention, a toner fixing apparatus and an electrophotographic printing device including the toner fixing apparatus are provided which display excellent fixing properties during multicolor image formation, excellent heating efficiency and excellent economy with respect to installation space.

Abstract: [Problem to be Solved] To provide an inkjet recording apparatus capable of adjusting a gap with high accuracy and easily. [Solution] The present invention provides an inkjet recording apparatus 100 including line heads 20 to 23 capable of recording on a recording medium 1, a head box 11 that houses the line heads 20 to 23, and gap adjustment cams 30 to 32 that abut on a lower surface of a bottom 11b in the head box 11, in which the head box 11 is slightly movable in an up-and-down direction by rotating the gap adjustment cams 30 to 32.

Abstract: An electrophotographic printer includes a transfer roller cleaning device 12 and a carrier liquid supply unit 11 disposed at a portion of the circumference of a transfer roller 2 between a position of image transfer onto a recording medium 7 and the transfer roller cleaning device and including a carrier liquid supply roll 13 in rotational contact with a surface of the transfer roller. The transfer roller cleaning device comprises a cleaning roll 17 rotating in rubbing contact with the surface of the transfer roller and having a bias voltage applied thereto which is of a polarity opposite to that of a residual toner; a peripheral surface scraping blade 18 positioned downstream of the cleaning roll in the rotation direction of the transfer roller; a side surface scraping blade 19 likewise positioned downward; and a surface scraping blade 26 disposed at a portion of the circumference of the cleaning roll.

Abstract: [Object] To provide an inkjet recording apparatus that can obtain a recorded object with high quality by reliably inhibiting flapping of a travelling web to maintain travelling stability. [Solving Means] The present invention is an inkjet recording apparatus 100 that makes a record on a web 1, including a line head 10 disposed on the side of a recording surface 1a of the web 1, guiding rollers 2 that guide the web 1, and a suction mechanism 20 disposed on the side of a non-recording surface 1b of the web 1, wherein, during travelling of the web 1, the line head 10 makes a record on the recording surface 1a of the web 1, and the suction mechanism 20 sucks the non-recording surface 1b of the web 1.

Abstract: 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. The invention provides an ink jet printer in which line heads other than at least one of the line heads 3 are each displaceable by a distance that is equal to a part per the plural number of a nozzle pitch in the line head in a direction of the nozzle row.

Abstract: An electronic photograph printer is provided for elastically biasing the developer apparatus having the photosensitive drum by the pressing mechanism and for pressing the developer roll onto the photosensitive drum. In this configuration, quality in the developed image can be ensured by the trackable movement of the developer roll relative to the photosensitive drum in the electronic photograph printer. In addition, adjustable range for positioning the developer roll and operability and maintainability within the developer apparatus can be achieved.

Abstract: [Problem to be Solved] To provide an inkjet recording apparatus capable of adjusting a gap with high accuracy and easily. [Solution] The present invention provides an inkjet recording apparatus 100 including line heads 20 to 23 capable of recording on a recording medium 1, a head box 11 that houses the line heads 20 to 23, and gap adjustment cams 30 to 32 that abut on a lower surface of a bottom 11b in the head box 11, in which the head box 11 is slightly movable in an up-and-down direction by rotating the gap adjustment cams 30 to 32.

Abstract: [Problem to be Solved] To provide an inkjet recording apparatus that is easy to maintain and is compact. [Solution] The present invention provides an inkjet recording apparatus 100 including a line head 20 capable of printing on a recording medium 1, and a housing 11 with the line head 20 attached, in which the line head 20 is slid along a guide groove 12 provided in the housing 11 so that the line head 20 is detachably attached.

Abstract: 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. The invention provides an ink jet printer in which line heads other than at least one of the line heads 3 are each displaceable by a distance that is equal to a part per the plural number of a nozzle pitch in the line head in a direction of the nozzle row.

Abstract: 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.

Abstract: 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 11 disposed at a portion of the circumference of a transfer roller 2 between a position of image transfer onto a recording medium 7 and a transfer roller cleaning device 12 and including a carrier liquid supply roll 13 in rotational contact with a surface of the transfer roller 2 for supplying a carrier liquid onto the surface of the transfer roller 2, wherein the transfer roller cleaning device comprises: a cleaning roll 17 rotating in rubbing contact with the surface of the transfer roller and having a bias voltage applied thereto which is of a polarity opposite to that of a residual toner; a peripheral surface scraping blade 18 positioned downstream of the cleaning roll in the rotation direction of the transfer roller and in contact with a per

Abstract: A toner fixing apparatus characterized by provision of a provisional fixing portion provided with a provisional fixing component having an infrared heater irradiating infrared radiation onto a printed surface of the web and a main fixing portion provided downstream in the web flow in the provisional fixing portion and nipping the web with heat rollers performing a main fixing operation or having a plurality of main fixing units. According to this invention, a toner fixing apparatus and an electrophotographic printing device including the toner fixing apparatus are provided which display excellent fixing properties during multicolor image formation, excellent heating efficiency and excellent economy with respect to installation space.

Abstract: An electronic photograph printer is provided for elastically biasing the developer apparatus having the photosensitive drum by the pressing mechanism and for pressing the developer roll onto the photosensitive drum. In this configuration, quality in the developed image can be ensured by the trackable movement of the developer roll relative to the photosensitive drum in the electronic photograph printer. In addition, adjustable range for positioning the developer roll and operability and maintainability within the developer apparatus can be achieved.

Abstract: 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.