Abstract: A multicolor transfer heat-sensitive recording apparatus for thermally transfer-recording images onto a recording paper 1, comprises a first and a second thermal head for selectively heating ink donor sheets of different color, first and second drive feed units for drivingly feeding the recording paper and the ink donor sheets and a pulse generator for feeding pulses to the first and second drive feed units. The first and second drive feed units include first and second backing rollers, first and second stepping motors (such as synchronous inductor motors) drivingly connected to the backing rollers and first and second drivers for driving the stepping motors, respectively. The pulse generator simultaneously feeds for a predetermined duration a single pulse to the first driver for driving the first roller and a number of pulses to the second driver for driving the second roller.

Abstract: A character and image data reading system for a character and image data reading apparatus has an auxiliary scanning mechanism which moves an original relative to a solid image pickup element in a stepwise manner by a predetermined distance during an integration period of the pickup element so that a light receiving window of the pickup element covers a region corresponding to at least an auxiliary scanning width.

Abstract: A dichromatic reading device is disclosed in which the difference is taken between output signals from a first image sensor receiving reflected light directly and a second image sensor receiving the reflected light after being passed through a filter which blocks a specific color component of the reflected light. The difference is converted into a binary signal which provides one color image information and which together with a binary signal obtained from at least the second image sensor and inverted, is NANDed to provide a second color image information.

Abstract: A binary-coding device for a raster picture scanner is herein disclosed in which the miscoding produced by various states in adjacent picture elements is eliminated. The device comprises a comparator which compares the analog picture signal of the scanner with a reference voltage. A "black-or-white" state of a first picture element adjacent to the n.sub.th, i.sub.th picture element to be read (the first picture element being on the i.sub.th subscanning line) is stored in an addressable RAM, and the state of a second picture element adjacent to the n.sub.th, i.sub.th picture element to be read (the second picture element being on the n.sub.th main scanning line) is inputted to a flipflop. The states of the two adjacent picture elements are compared in a plurality of dissimilar logic gates which output a signal indicative of the reference voltage which should be used in order to maximize accurate coding. These signals are applied to a plurality of switches which output the desired reference voltage.

Abstract: A color copying machine includes a device separating the image information from each area of the original into colors corresponding to predetermined recording colors to thereby form corresponding video signals. A preferential selection circuit converts each video signal into a 2-level signal and performs an arithmetic operation on each 2-level signal to thereby key the image information from each area of the original to one of the recording colors or white. Black is selected as the recording color if a chromatic color competes with black in the same area.

Abstract: A plurality of image sensors cover overlapping regions and provide output signals which are selected during nonoverlapping times and combined into a synthetic video signal. The timing of all sensor selections except the first are keyed to the first so that adjustment of the first starting time can move the entire scanning interval.

Abstract: A thermal head driving system having a plurality of thermal heads, an electric power source commonly used to drive the heads at the same voltage. A pulse generator provided between the power source and each of the heads for producing a driving pulse having a width determined in accordance with a ratio of a resistance value of each thermal head. The plurality of thermal heads are accordingly driven by the respective driving pulses corresponding thereto to effectuate thermal recording.

Abstract: The invention relates to an image transmission process such as facsimile transmission wherein image data is converted into an electrical signal, transmitted over lines and then converted into a recorded image at the receiving end. Specifically, the invention concerns a process wherein conventional commercial electric power lines are used as the transmission line, such that facsimile or other image transmission may be easily effected within, for example, a single building or similarly limited area.

Abstract: A copying machine includes an optical sensor of the line scanning type for converting an image into electrical signals, and a thermal recording head controlled in accordance with the image signals. The platen moves with respect to the read unit and the read unit will read in both forward and reverse directions of the platen, and the magnification value can be varied. The total width of energized heating elements and the movement length and speed of the platen may be controlled in accordance with the size of the original. The total number of heating elements energized at any one time is limited, and the machine includes input and output terminals for sending image information externally and for receiving and recording image information other than directly from the read unit.

Abstract: A multicolor recording apparatus is provided with plural recording stations for recording in a like number of colors. A single sheet transport path extends through all of the stations, such that recording may be carried out in all colors. A number of sheet supply stations are provided at different points along the transport path, so that recording may take place in one, several or all of the available colors.

Abstract: A copying machine includes an optical sensor of the line scanning type for converting an image into electrical signals, and a thermal recording head controlled in accordance with the image signals. The platen moves with respect to the read unit and the read unit will read in both forward and reverse directions of the platen, and the magnification value can be varied. The total width of energized heating elements and the movement length and speed of the platen may be controlled in accordance with the size of the original. The total number of heating elements energized at any one time is limited, and the machine includes input and output terminals for sending image information externally and for receiving and recording image information other than directly from the read unit.

Abstract: A copying machine includes an optical sensor of the line scanning type for converting an image into electrical signals, and a thermal recording head controlled in accordance with the image signals. Either the platen or read unit are movable and the read unit will read in both forward and reverse directions of movement, and the magnification value can also be varied. The total width of energized heating elements and the movement length of the read unit or platen may be controlled in accordance with the size of the original. The total number of heating elements energized at any one time is limited, and the machine includes input and output terminals for sending image information externally and for receiving and recording image information other than directly from the read unit. A cutter is provided for cutting the recording paper web immediately prior to discharge.

Abstract: A two-color copying machine includes a scanner unit for simultaneously generating signals representing different colors on an original document and first and second thermal head assemblies each responsive to signals representing a different color image for recording two different color images on a single recording sheet. If desired, only one of the color portions of the original may be recorded, or they can both be recorded in a single recording color.

Abstract: A multicolor recording apparatus includes a number of recording sections for applying different colors of inks. A main transport path travels through all recording sections, while bypass paths are provided for recording sheets which are to be recorded monochromatically, for example, so that any one or more of the recording sections may be bypassed. To eliminate wastage of ink donor sheet, the web containing the solid ink is not conveyed in recording sections bypassed by the sheet.

Abstract: In a multi-color recording device having a plurality of recording stations, the back roller pressure and recording sheet transport is provided by a belt passing around rollers at each recording station and extending from one station to the next in contact with the recording paper.