Abstract: A communication control apparatus includes a master communication control unit for performing communication control for a plurality of slave units, and an intermediate communication control unit which performs the communication control for each slave unit instead of the master communication control unit. The intermediate communication control unit includes a memory section for holding transmission data necessary for slave unit communication processing and response data, which is a response to the transmission data, a transmission/reception section for sending the transmission data and for receiving the response data, and a communication processing control section.

Abstract: An image forming apparatus for making tone reproductions using a variable area toning method. In addition to an image carrying member, on which a latent image is formed, and a developer, to develop a formed latent image, the apparatus is characterized by having a subsystem to form a plurality of first latent images having different dot area indexes, a subsystem to form a plurality of second latent images having different resolutions, first and second detector systems to respectively detect the image characteristics of the first and second latent images, and first and second correction subsystems to correct development conditions in accordance with respective outputs from the first and second detector systems.

Abstract: In a developing device according to the present invention, a developer carrying member in which a dielectric layer is formed on the surface of a conductive base substrate is used. In conveying a monocomponent developer containing no carrier to a developing area opposite to the image carrying member with the developer held on the surface of the developer carrying member, to develop a latent image formed on the image carrying member by the developer, the dielectric layer in the developer carrying member satisfies the following conditions:t.gtoreq.50, .di-elect cons..ltoreq.10, and 15.ltoreq.t/.di-elect cons..ltoreq.35where t (.mu.m) is the thickness of the dielectric layer, and .di-elect cons. is the relative dielectric constant of the dielectric layer.

Abstract: The present invention is directed to a developing device using a developer carrying member in which an insulating layer is formed on the surface of a conductive base substrate for regulating, in conveying a developer to a developing area opposite to an image carrying member with it being held on the surface of the developer carrying member, the amount of the developer conveyed to the developing area upon pressing a regulating member against the surface of the developer carrying member, wherein a regulating member in which a dielectric layer satisfying the following relationship (1) is formed on an electrical conductive member is used as the regulating member, to press the dielectric layer against the developer carrying member:t/.epsilon..gtoreq.10 (1)where t (.mu.m) is the thickness of the dielectric layer, and .epsilon. is the relative dielectric constant of the dielectric layer.

Abstract: A development system that contains a developer carrier for carrying a developer on the surface thereof to a development region opposite to an image bearing body, and a regulating member biased into contact with the surface of the developer carrier by a predetermined pressure for regulating an amount of developer carried by a developer transport member. The developer carrier has a surface coated with fine particles with an average particles size of between 3 and 30 .mu.m which are bonded with the surface.

Abstract: An object of the present invention is to obtain a superconductive magnet, the size of which can be reduced by shortening the radial length of a magnetic device thereof and the refrigerating performance of which can be improved. A cylinder for fastening a refrigerator has an end facing an ambience of helium gas evaporating in a helium chamber and another end which is substantially horizontally fastened to a vacuum chamber. Further, the three-stage regenerative refrigerator is inserted and fastened to the cylinder for fastening the refrigerator. A heat insulator, such as a convection prevention tube, made of a hollow Teflon tube is wound around the outer surface of each stage of the cylinder of the three-stage regenerative refrigerator. The convection prevention tube is enclosed into a gap between the cylinder for fastening the refrigerator and the three-stage regenerative refrigerator without no undesirable gap so that heat convection of the helium gas is prevented.

Abstract: A superconducting magnet which is capable of improving the refrigerating and the assembling characteristics and of composing in small size. A helium vessel 2 contains a cylindrical superconducting coil for cryogenically refrigerating it by liquid helium. A second and a first heat-shields 5 and 6 and a vacuum vessel 4 are coaxially provided so as to surround the helium vessel 2. Over the helium vessel 2, a L-letter shaped duct 50 is provided to be exposed to helium gas atmosphere being evaporated in the helium vessel 2. A refrigerator-mounting cylinder 51 has an end coupled to the L-letter shaped duct 50 through the bellows 52 and is mounted on an end surface of the vacuum vessel 4 substantially in parallel to the axial direction of the superconducting coil. A three-stage cold heat accumulation refrigerator 30 is inserted into and fixed to the refrigerator-mounting cylinder 51 for reliquefying the helium gas having been drawn into the L-letter shaped duct 50 by a third heat state 43.

Abstract: A rivetting machine has a hydraulic cylinder connected with a hydraulic power source, the cylinder including a piston shaft, a motor-driven spindle extending through and journaled to the piston shaft, and a rivet head forming tool secured to the bottom end of the spindle and carrying a forming shaft. A controller of the machine has a linear encoder for detecting the axial position of the piston shaft, an electric hydraulic servo valve provided in a hydraulic circuit between the hydraulic power source and the hydraulic cylinder, a machining data input unit for inputting machining data of the work rivet into a programmable control unit. The control unit receives the output of the linear encoder and the input machining data and controlling the hydraulic cylinder via the electric/hydraulic servo valve based on the machining data and the output of the encoder.

Abstract: The present invention discloses a mono-component developing device comprising a rotatable drive roller which confronts a rotatable photoreceptor, a flexible member arranged on the exterior surface of the drive roller and having a peripheral length greater than a peripheral length of the drive roller, an elastic pad provided on the side opposed to the side confronting the photoreceptor of the drive roller, and an elastic plate arranged at both ends of the flexible member in an axial length thereof. In the developing device having the above construction the flexible member onto which a toner is supplied is pressed toward the photoreceptor by the elastic pad while being pressed by the elastic plate in the axial direction of the flexible member, so that the flexible member contacts with the surface of the photoreceptor on the side confronting the photoreceptor of the drive roller to supply the toner to an electrostatic latent image formed on the photoreceptor surface.

Abstract: A developing apparatus having a sealing mechanism for preventing a toner leakage is disclosed. A sealing member has a recess for receiving one end of a scraper rod. In the recess, an elastic sealing plate presses the end of the scraper rod against the peripheral surface of a thin film sleeve and seals the recess. Toner transported along the inner side face of the sealing member is scraped by the end of the scraper rod. The elastic member prevents the leakage of toner which has penetrated into the contact face between the inner peripheral surface of the sealing member and the outer peripheral surface of the thin film sleeve.

Abstract: A developing apparatus includes a photosensitive drum positioned in confronting relation to a developing sleeve. A toner accommodating tank is provided for supplying toner to the developing sleeve. The toner accommodating tank is divided into a small chamber and a supplementary chamber which are separated from one another by a partition which permits toner to be supplied from the supplementary chamber to the small chamber but which prevents the return of toner from the small chamber to the supplementary. A movable shutter selectively permits and prevents toner from being supplied from the supplementary chamber to the small chamber in accordance with operation of the apparatus.

Abstract: An electrostatic latent image developing apparatus includes an agitating member accommodated in a casing, a roller member accommodated in a front of the casing, and a blade contacting under pressure with an outer circumferential portion of the roller member, which is arranged in the casing. Toner held on the outer circumferential portion of said roller member being supplied to develop an electrostatic latent image on the basis of rotation of the roller member while being regulated by the blade. The apparatus includes a partition member arranged between the roller member and the agitating member at an upper stream side of said blade corresponding to a rotary direction of the roller member. The casing has a space defined among the partition member, the blade, and the outer circumferential portion of the roller member.

Abstract: An automatically balancing type pen recorder, which is compact in size and is highly reliable in operation, comprises an integral servo unit formed of a single printed circuit board which incorporates therein a pen carriage and an automatic balancing mechanism adapted to move a recording chart in a direction perpendicular to the direction of feed of the chart, in response to the magnitude of a measuring signal.

Abstract: An interactive graphic system is provided which introduces drawing data step by step in the form of interaction to describe figures, characters, numerical figures or the like with the aid of a microcomputer. The interactive graphic system consists of a keyboard for introducing drawing data, a plotter for recording the figures, a microcomputer, and a memory unit that are constructed as a unitary structure which features small size, reduced cost and enhanced operational performance. Further, the interactive graphic system is so constructed that application software packages can be freely exchanged to diversify the functions.

Abstract: A multiple color recording apparatus records on a sheet of recording paper, the magnitudes of a plurality of varying analog signals as a pattern of dots in different colors, and also records characters, symbols and the like related to the analog recording as a pattern of dots in desired colors.

Abstract: An interactive graphic system is provided for automatically recording lines, symbols or marks by inputting plotting information in a step-by-step mode in an interactive system. The systems comprise a data setter for specifying, among various predetermined graphs, a graph to be plotted and for setting plotting data concerning the graph thus specified, a plotter for providing records in association with input signals, a display for requiring the plotting data inputs, and a controller for suitably controlling the various sections. The system is formed into one unit, so that the plotter can directly plot the necessary records with plotting data given by the data setter, and that the plotting operation is simplified and the system itself is small in size and low in manufacturing cost.