Abstract:
A heated roller for use in a fixing device has a heating portion and hollow shaft portions integrally molded from the same material. Conducting terminals capable of elastically expanding and contracting in the radial direction are closely fitted into the hollow shaft portions at both ends of the molded member. This ensures power supply from the conducting terminals, which are metallic parts, to the ceramic heating portion.
Abstract:
A heat roller having a resin layer for adhesion provided on the outer surface of a roller body, containing a silicone resin material of good thermal conductivity which is in the form of an oil in a temperature range of -50 to 150 degrees Celsius and is thermosettable above 150 degrees Celsius, which is interposed between the roller body and the resin layer by coating.
Abstract:
An electrophotographic development process is disclosed, in which a visible toner image is fixed after it is transferred onto transfer members, the visible toner image being formed by a development device equipped with a photosensitive substance for forming a latent image and a visible image, a magnetic field source device, arranged in the vicinity of the photosensitive substance, having a movable member for conveying a developer on the surface and forming magnetic brush, a developement container supporting the magnetic field source device and a developer regulating plate, the improvement wherein the developer is a mixture of carriers and toner, and wherein the carrier are at least one of spherical, substantially spherical, and flake-like shapes and a mixture of at least one kinds of carriers ranging from 30 to 150 .mu.m in average grain size. According to the present invention, motor load is reduced by torque drop, a stirring device and its accessory parts are omitted, and as a result, the development device can be made compact and less costly.
Abstract:
A method of producing a magnet roll in which a magnetic property comparable to that obtained by an injection molding can be obtained in spite of an extrusion molding. According to a first embodiment, the yoke width of the magnetic-field extrusion die is varied along an extrusion direction. According to a second embodiment, a pipe filled with resin bonded magnet material is used as a shaft. According to a third embodiment, a shaft having a groove which is filled with magnet is used. According to a fourth embodiment, a shaft provided with surface magnetic charge is used. According to a fifth embodiment, a magnetized region of a shaft is set to be shorter than the length of a main magnet. According to a sixth embodiment, an extruded matter is moved while stored in a sizing metal mold having a magnetic circuit structure. According to a seventh embodiment, a sizing metal mold for storing an extruded matter therein is installed into a heating device and a cooling device equipped with a magnetic circuit structure while storing an extruded matter therein. According to an eighth embodiment, a preliminary magnetization is carried out with magnetic poles whose number is smaller than a finally-required number of magnetic poles, and then a re-magnetization is carried out with the finally-required number of magnetic poles.
Abstract:
A control signal generating circuit for generating control signals, based on a first clock signal, a second clock signal and a mode setting signal, and a plurality of scanpath circuits. Operation of each of the scanpath circuits is controlled according to the generated control signals. The control signal generating circuit and scanpath circuits are provided in a semiconductor integrated circuit having reduced size.
Abstract:
A multi-layered endless belt having an arbitrary layer thickness by the thickness of the film and the winding number, a medium conveying belt using the same, and a method and apparatus by which these can be stably produced without various residues in the production process and can be produced with a high general-purpose properties and at a low cost. There are provided a multi-layered endless belt made by winding and heat-welding a polymer material film and a production method thereof, and further a production method of medium conveying belts of various forms fundamentally having a construction in which an electrode pattern and a protective film are laminated thereon, and a novel production method and molding apparatus for molding the multi-layered endless belt by heat-pressing a wound tubular body.
Abstract:
A memory circuit includes an input selector for receiving input data serially at an interval of a period T and outputting the input data and an address counter for generating first address data sequentially at an interval of a having period 2T and second address data sequentially at an interval having period 2T. The second address data is delayed a period T from the first address data. The memory circuit of the present invention further includes two memory blocks coupled to the input selector and address counter. One memory block stores even numbered input data in response to the first address data and outputs them at the interval of the period 2T. The other memory block stores odd numbered input data in response to the second address data and outputs them at the interval of the period 2T.
Abstract:
An image information processing apparatus includes an image memory having a page memory area for storing image information and a FIFO memory area which is provided integrally with the page memory and a read/write operation of which is controlled independently of the page memory area. Coded image information supplied from a recording unit is transferred to a codec circuit through the FIFO memory area and decoded by the codec circuit. The decoded information is stored in the page memory area.
Abstract:
Bonded magnets are aligned around a shaft so as to form a roller shape magnetic body as shown in FIG. 2. In this case, a magnet A' having a portion B which does not change the breadth of a magnet in the circumferential direction even if the distance from the center of revolution changes, is arranged.
Abstract:
A transportable telephone exchange apparatus which includes small capacity telephone exchange facilities which are divided into a plurality of containers for transportation to an installation site by boat or by vehicle, has an improved frame packing density within the frame and is constructed to facilitate maintenance.