Abstract: An image transfer device includes a member for carrying a transfer material thereon and an image bearing member having an image thereon, the transfer material carrying member being subjected to a transfer corona therethrough to transfer the image from the image bearing member onto the transfer material. When the transfer material is separated from the transfer material carrying member by a separation pawl, that portion of the transfer material carrying member from a position in which the transfer material is in close contact with the carrying member to another position in which the transfer material is separated from the carrying member by the separation pawl is charged by a pair of corona chargers with the transfer material carrying member being located therebetween, so that the transfer material can more readily be separated from the carrying member.

Abstract: A color image reading apparatus with a plurality of line sensors and an associated plurality of rotary color filter disks produces a plurality of sequential color component signals from each line sensor. An amplifier with an adjustable gain is provided for each of the line sensors. A white balance operation is performed prior to reading a color document by determining gains for each of the amplifiers to use in amplifying corresponding ones of the sequential color component signals on the basis of a plurality of reference color component signals generated by reading a white reference plate with the line sensors. The determined gains are stored in a memory as digital data. The data is read out and used to control the gains of the amplifiers while a color document is being read. Color balance correction switch units enable an operator to selectively modify the determined gains in order to adjust the color balance of the color component signals.

Abstract: There is provided an image forming device wherein a half-tone pattern having a recording portion and non-recording portion is formed on a recording medium, a value corresponding to the image density of the half-tone pattern is detected, and a high quality half-tone is obtained by controlling image signals by the above detection output or quantization means for the binary or multi-value conversion of image signals.

Abstract: A color image forming apparatus wherein a plurality of developing devices are supported on a supporting member which is rotatable to revolve the developing devices to develop the latent images formed on an image bearing member corresponding to color components. When a desired one of the developing devices are to be moved to a developing station, the direction of the revolution is selected depending on the position currently occupied by the desired developing device.

Abstract: An electrophotographic apparatus for forming color images has a photosensitive member, a charging device for applying a primary charge, an imaging device for selectively exposing the photosensitive member to image light of different color components and a device for uniformly exposing the photosensitive member to near infrared light substantially simultaneously with the image exposure. Different color images are sequentially formed, developed and transferred to a transfer material to form a resultant color image with good color balance.

Abstract: An electrophotographic method and apparatus is disclosed which is able to faithfully reproduce the half-tone portion of an original image on a photosensitive medium having an electroconductive layer, a photoconductive layer and an insulating surface layer. The present invention is directed particularly to improvements in the secondary charging step in the above method. According to the invention, the process of secondary charge includes the steps of subjecting the photosensitive medium to the action of corona discharge having the component of opposite polarity to that of the primary charge with simultaneous light image exposure, exposing the photosensitive medium surface to a light image while reducing or stopping the action of corona discharge and exposing the photosensitive medium surface to a light image while controlling the amount of corona discharge.

Abstract: An electrophotographic device wherein an image is formed by exposing a movable photosensitive member to an optical image, wherein such member includes a conductive layer, a photoconductive layer, and an insulating layer. A primary corona discharger of predetermined polarity charges the surface of such member and an imagewise exposure is effected through an optically open port in the rear side of a secondary corona discharger. A plural number of sets of control grids, adapted to be set at different electric potentials, are used in conjunction with the secondary charger which applies a corona discharge having an opposite polarity component to the primary corona. The control potential at the upstream grid has a value biased more toward the high light potential side of the latent image than toward the control potential of the adjacent grid.

Abstract: An apparatus for transferring a developed image on an image bearing member includes a transfer corona discharger disposed in opposition to the transfer position of the image bearing member, transfer material bearing member having a dielectric transfer material bearing surface and disposed to move the transfer material passing through the area between the image bearing member and the transfer corona discharger, and transfer material attraction charge applying device disposed on the downstream of the transfer position and in the space between the surface of the image bearing member and the transfer material bearing surface of the transfer material bearing member.

Abstract: A method for suppressing abnormal rise in immunological function which often causes various types of autoimmune diseases, and an agent useful therefor are disclosed. The method is carried out by administering cholecalciferol or its derivative to patients suffering from abnormal rise in immunological function. The agent contains the above compound as active ingredient and is useful not only to treat and/or prevent the abnormal rise in immunological function but also to suppress graft rejection.

Abstract: This specification discloses an electrophotographic method and apparatus for forming an electrostatic latent image on a photosensitive medium having a conductive layer, a photoconductive layer and an insulating layer. The method comprises a primary charging step, an image light exposure step, a secondary charging step, a tone regulating step and a whole surface exposure step.

Abstract: In accordance with the present invention, there is provided an improved process for producing a quick-cooking noodle without frying treatment. The process is especially suitable for producing a quick-cooking snack noodle. Noodle formulations containing starch flour and edible fat and/or oil in addition to wheat flour and/or buckwheat flour, egg powder, salt, water and a noodle dough conditioner are mixed, rolled into a continuous noodle sheet, which is then slit into noodle strands, followed by steaming. Thereafter, the steamed noodle strands are cooled to within 30.degree.-60.degree. C. by blowing cold air, dried and then packaged together with flavoring agents and additives, preferably in a suitable insulating container.

Abstract: Process and apparatus for electrophotography are disclosed in which a photosensitive medium basically composed of an electrically conductive layer, a photoconductive layer and an insulating layer is used. The process comprises the steps of applying onto the surface of the photosensitive medium a uniform corona discharge with a predetermined polarity, exposing it to an original light image, applying to it a secondary corona discharge with a component of the opposite polarity to that of the primary uniform corona discharge simultaneously with or immediately after the image-wise exposure, uniformly exposing it to near infrared light almost simultaneously with the secondary corona discharge and subjecting it to a whole surface exposure with white light so as to form an electrostatic latent image corresponding to the original light image.

Abstract: In a color image formation apparatus which comprises a photosensitive medium, optical image exposure device for exposing the photosensitive medium to an optical image having light components of an image original, and electrostatic latent image formation device for forming electrostatic latent images on the photosensitive medium in accordance with the exposure to the optical image.

Abstract: Activated carbon filtration materials are obtained by impregnating phenolic resins into inorganic porous bodies, such as ceramic filter tubes and plates, then baking the impregnated bodies to carbonize the resins. The invention also includes improved methods for purifying aqueous liquids contaminated with phenol, live bacilli, pyrogens, or water soluble organic dyes and a process for regenerating spent filters.

Abstract: In a heat-fixing device for fixing a member to be fixed as it is conveyed on a conveyance path provided with a heat source, there is provided suction means having a suction port adjacent to the conveyance path. The suction means is operable to draw the member to be fixed as it is conveyed.

Abstract: In transferring a toner image carried on a toner image carrier onto a transfer medium, a uniform charge is imparted to the surface of the toner image carrier while a charge of the same polarity as the uniform charge is imparted to the surface of the transfer medium, whereafter a toner image is transferred from the surface of the toner image carrier to the surface of the transfer medium.

Abstract: A dihalocyclopropane functional multi-component copolymer is produced by reacting olefin bond units contained in the side chain or in the cyclic group in the main chain of a multi-component copolymer with dihalocarbene generated from halogenated hydrocarbon in the presence of a cation surfactant catalyst by using an alkali aqueous solution. The dihalocyclopropane functional multi-component copolymer has an excellent compatibility as a polymer to be blended with the general purpose rubber and as a halogenated rubber series industrial material.