Abstract: A printing device includes a first ejector that ejects a recording medium to an exterior, a second ejector that enhances a rigidity of the recording medium more than by the first ejector, and ejects the recording medium to the exterior, and an ejector selector that selects either the first ejector or the second ejector.

Abstract: A paper conveyance roller pair on the lower flow side of an auto cutter which cuts a target recording medium (long paper) at predetermined timing during a printing operation includes a powder brake mechanism which brakes the paper conveyance roller pair by changing the degree of agglomeration of magnetic powder with a magnetic force generated by a coil based on an excitation current value so as to continuously vary a transmission torque. When the target recording medium is cut, a control section varies an excitation current of the power brake mechanism to increase a load torque to be applied to the paper conveyance roller pair, and applies tension larger than usual to the target recording medium pinched by the paper conveyance roller pair.

Abstract: A printing apparatus prints an image on a recording medium unwound by an unwinder. The recording medium is wound around a first winding shaft in order from a beginning edge to an ending edge of the recording medium. The wound recording medium is rewound, and the rewound recording medium is wound around a second winding shaft in order from the ending edge to the beginning edge of the recording medium.

Abstract: A printing device includes an image former performing an image formation on a recording medium in a rolled shape, and including a first roller pair that rotates to convey the recording medium in the rolled shape, and, a supplier including a second roller pair that rotates to convey the wound-off recording medium in the rolled shape to the image former, and a controller that actively rotates the second roller pair. The image former includes a determiner that determines whether or not the first roller pair that conveys the recording medium in the rolled shape conveyed from the second roller pair has held the recording medium in the rolled shape. When the determiner determines that the recording medium in the rolled shape has been held, the controller stops the active rotation of the second roller pair.

Abstract: A printing device includes a first ejector that ejects a recording medium to an exterior, a second ejector that enhances a rigidity of the recording medium more than by the first ejector, and ejects the recording medium to the exterior, and an ejector selector that selects either the first ejector or the second ejector.

Abstract: A printing device includes a recording-medium-type reader that reads a type of a recording medium, a fixing-unit attachment that selectively attaches any one of a plurality of fixing units, the plurality of fixing units being different types from one another, and a conformity determiner that determines whether or not the type of the fixing unit attached in the fixing-unit attachment is conformed to the type of the recording medium read by the recording-medium-type reader.

Abstract: A printing system comprising: a controller that generates image data and controls printing; a first paper supplier that unwinds and supplies a printing medium wound around a winding shaft; a first image-forming unit that forms a first image based on image data, on the printing medium unwound and supplied by the first paper supplier; a winder that winds the printing medium on which the first image-forming unit formed the first image around a winding shaft in order from a beginning edge to a ending edge of the printing medium; a second paper supplier that unwinds and supplies the printing medium the winder wound around the winding shaft, in order from the ending edge to the beginning edge of the printing medium; and a second image-forming unit that forms a second image based on image data in which top and bottom have been reversed and left and right have been reversed in the area where the first image was formed on the printing medium unwound and supplied by the second paper supplier.

Abstract: A printing apparatus prints an image on a recording medium unwound by an unwinder. The recording medium is wound around a first winding shaft in order from a beginning edge to an ending edge of the recording medium. The wound recording medium is rewound, and the rewound recording medium is wound around a second winding shaft in order from the ending edge to the beginning edge of the recording medium.

Abstract: Provided are intermediate coupling unit that can maintain universal applicability of image forming apparatus so it can singly form images/be installed in small offices, but can also couple two apparatuses if necessary, and image forming apparatus adaptable to this unit. Intermediate coupling unit includes carry-in port at lower surface right side, plural conveying roller pairs sandwiching and conveying internally-carried-in recording medium, discharge ports formed near upper surface right/left ends for externally discharging recording medium, first/second flaps switching among conveying paths, A, B, C, paper discharge tray fixed at upper internal position, and internal paper feed cassette detachable downward. Two identical-shape printers are linked through conveying path A and enable double-speed-printing when coupled to top/bottom of intermediate coupling unit to face same direction, and linked through conveying path B and enable fast-double-side-printing when coupled to face opposite directions.

Abstract: Provided are intermediate coupling unit that can maintain universal applicability of image forming apparatus so it can singly form images/be installed in small offices, but can also couple two apparatuses if necessary, and image forming apparatus adaptable to this unit. Intermediate coupling unit includes carry-in port at lower surface right side, plural conveying roller pairs sandwiching and conveying internally-carried-in recording medium, discharge ports formed near upper surface right/left ends for externally discharging recording medium, first/second flaps switching among conveying paths, A, B, C, paper discharge tray fixed at upper internal position, and internal paper feed cassette detachable downward. Two identical-shape printers are linked through conveying path A and enable double-speed-printing when coupled to top/bottom of intermediate coupling unit to face same direction, and linked through conveying path B and enable fast-double-side-printing when coupled to face opposite directions.

Abstract: A head controller 2 reads out adjustment data from a ROM 3 immediately after a power-on operation. The adjustment data is prepared for adjusting unevenness of light emission from LEDs in a LED head 5. A buffer memory 4 stores the read adjustment data. The head controller 2 reads the adjustment data from the buffer memory 4 with high data transfer rate, and obtains bitmap data from a frame memory or the like (not shown). The head controller 2 sends the read bitmap data and the adjustment data to an anode driver 51. The head controller 2 sends a strobe signal to the anode driver 51 and a cathode driver 53. The anode driver 51 adjusts ampere of supplied currents (i.e. drive signals corresponding to the bitmap data) from the head controller 2, in accordance with the received adjustment data in response to the reception of the strobe signal. The adjusted drive signals are sent to LED array chips 52.

Abstract: A recording apparatus has an array of recording elements arranged in a main scanning direction and having a predetermined dot pattern, and forms a dot image on a recording medium located opposite to the recording elements. Reception circuit receives image data of a predetermined dot density. A plurality of line buffers store one dot line of data of interest as a printing target among the image data and aligned in the main scanning direction, and plural dot lines of data preceding and following the one dot line with respect to a sub-scanning direction. A compensation data generating circuit converts the one dot line of data of interest as the printing target into N lines of compensation data, divided by N with respect to the sub-scanning direction, based on the plural dot lines of data preceding and following the one dot line. A control circuit controls the time for activating the recording elements based on the compensation data.

Abstract: An image recording apparatus including a plurality of recording modules for substantially simultaneously recording on recording sheets images according to image data supplied thereto, an image data supplier for supplying images to the recording modules, a sheet supplier for supplying the recording sheets to the recording modules, and sheet distributors for distributing the recording sheets thus supplied successively by the sheet supplier to the recording modules.