Abstract: A color electrophotographic apparatus employing a plurality of image forming units each including a photoreceptor and a corona charger, and using toner. In the apparatus, the image forming units are arranged to be displaceable, with an exposure position of an exposure device and a transfer position of a transfer paper holding member being fixed. During image formation, the image forming unit is moved to a predetermined position, and the obtained color image transferred onto paper sheet on a transfer paper holding member. Each of the image forming unit has a first image forming position confronting the transfer paper holding member, and a second image forming position different from the first image forming position.

Abstract: In this strobe apparatus which can be fitted to a camera having a strobe built-in or a camera, a flash comprises at least two flashing parts having respectively different light distribution characteristics, the distances to objects in a plurality of places within the photographed picture are measured and the flashing amounts adapted to the distances are operated to control the flash amount of the flashing. Also, the flashing amounts of the first flashing part having non-uniform light distribution characteristics at the time of the full flashing within the photographed picture and the second flashing part having non-uniform light distribution characteristics substantially linearly symmetrical with the light distribution characteristics of said first flashing part with respect to the center axis are respectively independently controlled by a controlling circuit.

Abstract: The present invention comprises a distance measuring unit for measuring distances to subjects existent in specific areas within a photographic angle of view, a memory for storing distance measurement information representing measured distances from the camera to at least two subjects existent at different distances the distance measuring unit provides, a specifying unit for specifying positional relationships of at least two subjects to the camera, a display interlocked with specification of the specifying unit and helping an user recognize the positional relationships the specifying unit provides, an arithmetic logic unit for computing the distance measurement information and positional relationships to calculate an inclination of a photographic optical system necessary for producing an image in which at least two subjects are in focus, and a drive for tilting the photographic optical system according to an output of the arithmetic logic unit.

Abstract: A color electrophotographic apparatus arranged as follows is disclosed. A plurality of image forming units (1BK, 1C, 1M, 1Y) each including a developing device having an electrostatic latent image holding member and toner of a different color are employed. Each of the image forming units is arranged to be displaceable so as to be moved to the same image forming position for positioning. At the image forming position, the image forming unit is exposed to light image by an exposure device for image formation, with its toner image being transferred onto a transfer material through a confronting transfer transport device. The image forming unit at the image forming position is sequentially exchanged, and by the reciprocation of the transfer material through the transfer/transport device, toner images of respective colors are transferred as overlapped through positioning for coincidence, onto the same transfer material.

Abstract: A lens barrel of the present invention directly detects the lens-to-lens spacing between a focusing lens and another lens, whose position relative to the focusing lens exerts the largest influence upon a focused condition, by a measurement detector and, depending on an output indicative of the measured spacing, a controller drives the focusing lens through a driver to a proper in-focus condition. Accordingly, a very valuable advantage results in that a focusing position error of the focusing lens group, which has been encountered in the prior art, can be avoided to enable effective and high-accuracy focusing operation and control through a simplified structure.

Abstract: An electrophotographic apparatus has a photoreceptor drum supported for rotation in one direction sequentially past a plurality of processing stations, a corona charger for electrostatically charging the photoreceptor drum, a developer hopper accommodating therein a mass of developing material used to form a visible toner image and a transfer charger for transferring the toner image onto a recording paper. The developer hopper has its bottom portion formed with an opening open so as to accommodate a portion of the photoreceptor drum, so that the developing material can be electrostatically deposited on the photoreceptor drum, including both non-image and image areas, to form a toner layer. The apparatus also includes an electrode member operable to electrostatically remove a portion of the toner layer covering the non-image area, thereby leaving the remaining portion of the toner layer in the image area to form the visible toner image.

Abstract: A color electronic photographic apparatus includes plurality of image forming units, each having a different electrostatic carrier and a different colored toner. Each of the image forming units can be moved to the same image forming position when exposed to light by a light exposing mechanism at the image forming position so as to effect an image forming operation, so that toner images are individually transferred onto a transfer material. In the color electronic photographic apparatus, the image forming units are sequentially moved into the image forming position, and also, the transfer material is reciprocated by the transfer carrying device so that the toner images of each color are properly superposed on the same transfer material.

Abstract: In a facsimile store and multi-address transmission system, received picture information is stored. The picture information is transmitted to a plurality of destination terminals. A desired transmission time is memorized which is predetermined for a specified terminal. A detection is made as to whether or not received picture information is addressed to the specified terminal. In cases where the picture information is addressed to the specified terminal, the picture information is transmitted to the specified terminal at a moment which agrees with the predetermined desired transmission time.

Abstract: A multicolor electrophotography apparatus for forming a color image on a rotatable photosensitive device shaped cylindrically and arranged to hold on its circumferential surface an electrostatic image optically formed by an exposing device. The apparatus includes a plurality of developing devices movably provided along the circumference of the photosensitive device for developing a plurality of different-color toner images overlapping each other. Each of the developing devices is selectively driven to take a developing position and a non-developing position, each of the developing devices being closed to photosensitive devices up to the developing position and being separated therefrom up to the non-developing position. When the exposing device is in the non-operated state, at least one of the developing devices takes the developing position and the other developing devices take the non-developing positions.

Abstract: A process for continuously and automatically producing a high concentration coal-water slurry having a uniform quality is provided, which process comprises always monitoring the viscosity, concentration, pH, particle diameter distribution and the like of the slurry, detecting the variations of the foregoing and adjusting the quantity of coal fed, the quantity of water fed and the quantities of a surfactant and a pH adjustor added to thereby control the specifications of the coal-water slurry to definite ones.

Abstract: A process for the preparation of a multifilament optical fiber having 1,000 to 10,000 islands as optical filaments, which comprises using a composite spinning spinneret for the preparation of an islands-in-a-sea type multifilament fiber, which comprises at least three piled orifice plates including an orifice plate having many island-forming nozzle holes, an orifice plate having a sea-forming nozzle hole and an orifice plate having a filament-gathering nozzle hole, the nozzle hole of the orifice plate arranged just above the lowermost orifice plate having a trumpet-shaped opening extending toward the lower end face thereof and a sea component flow passage being formed between two orifice plates arranged just above the lowermost orifice plate, and supplying a thermoplastic polymer for forming cores of optical filaments from the island-forming nozzle holes and a sea-forming thermoplastic polymer from the sea-forming nozzle hole to effect composite spinning and gathering many filaments in the gathering nozzle ho

Abstract: A power transfer circuit includes a power transformer (2) having a center tap (12) provided in its secondary winding, a full-wave rectifier circuit (13), a level discriminator circuit (15) and a switching circuit (14). In response to a level discrimination made by the level discriminator circuit that a DC voltage outputted from one output terminal of the full-wave rectifier circuit is less than a predetermined voltage level, a transistor (Q1) and a thyristor (SCR) of the switching circuit are made conductive so as to ground the other output terminal of the full-wave rectifier circuit. In response to a level discrimination made by the level discriminator circuit that the DC voltage outputted from the said one output terminal of the full-wave rectifier circuit exceeds the predetermined voltage level, a diode (D9) connected to the center tap of the power transformer is made conductive to ground the center tap.

Abstract: In the magnetic recording and playback apparatus of the invention, a cassette is mounted in parallel with a base plate. The apparatus has a tape path which is optimized for stable tape running and tape protection and having three inclined planes of different inclination directions and angles with respect to the plane of the base plate. A cylinder is arranged perpendicularly to the first inclined plane, while a first guide post and an eraser head are arranged perpendicularly to the third inclined plane. A capstan, sound/control head and a second guide post are arranged perpendicularly to the second inclined plane.

Abstract: A magnetic recording/playback device in which a tape mounting device for mounting a magnetic tape in a cassette on a magnetic head drum or demounting the tape from the magnetic head drum into the cassette and a mode switching driving device adapted for effecting a switching of operation mode such as recording, playback, rewinding and forwarding are driven by a single driving power source, in good sequence through a change of the load imposed by the tape mounting device and the mode switching driving device, to permit a reduction in size and weight of the recording/playback device.

Abstract: Mineral impurities can be effectively removed from coal by introducing oil droplets into an aqueous slurry of pulverized coal. Coal, which is lipophilic, attaches to the surface of the oil droplets and floats upwardly along with the oil droplets utilizing their buoyancy. On the other hand, mineral impurities, which are hydrophilic, are left in the aqueous slurry.

Abstract: A combustion process for reducing nitrogen oxides in combustors is proposed wherein combustion takes place successively forming an incomplete combustion zone, a reducing combustion zone, and a complete combustion zone, respectively corresponding to primary burners, secondary burners and air ports or after-burners, successively arranged in the direction of gas stream in a furnace. According to the present invention, it is possible to reduce nitrogen oxides by improving a manner of combustion without providing any denitrating apparatuses for exhaust gas.