Abstract: A multilayer wiring substrate comprises differential signal wires placed within a first insulating layer between a first power-supply plane and a first ground plane; and general signal wires placed within a second insulating layer between a second power-supply plane and a second ground plane. In the multilayer wiring substrate, the differential signal wires are placed in a different plane from a plane having each of the general signal wires so that the different plane includes a first area having the differential signal wires, and a second area having one of the second power-supply plane and the second ground plane. The general signal wires are placed in a vertical direction of the second area in a laminated state so that each of the general signal wires is placed between the second power-supply plane and the second ground plane.

Abstract: A developer container for use in an image forming apparatus including a supporting member rotating around a rotation shaft thereof. A plurality of developing devices are arranged on the supporting member, each developing device including a developer supplying device. A plurality of cylindrically-shaped developer containers containing developer are provided, each developer container having an opening and a guide, and each developer container being detachably mounted on the developer supplying device. A container rotating device rotates the developer container, in which the guide is arranged that when one of the developing devices needs to be filled with the developer, the container rotating device rotates the developer container to transfer the developer in the developer container to the opening in accordance with a rotating movement of the developer container.

Abstract: An image forming apparatus including a development unit rotatably supported by a body of the apparatus and including a plurality of developing subunits and a plurality of replaceable developer containers each storing a developer to be replenished to a particular one of the developing subunits. Also included is a stepping motor configured to cause the developing unit to rotate in order to bring any one of the developing subunits to a developing position, a preventing mechanism configured to prevent the developing unit from rotating at a time of replacement of any one of the developer containers due to an unexpected change in a voltage or a current driving the stepping motor, and a locking portion included in either one of the developing unit and the body and an engaging portion included in the other of the developing unit and the body, in which the locking portion and the engaging portion selectively engaging with each other for preventing the developing unit from rotating.

Abstract: An image forming apparatus including a supporting member rotating around a rotation shaft thereof. A plurality of developing devices are arranged on the supporting member, each developing device including a developer supplying device. A plurality of cylindrically-shaped developer containers containing developer are provided, each developer container having an opening and a guide, and each developer container being detachably mounted on the developer supplying device. A container rotating device rotates the developer container, in which the guide is arranged that when one of the developing devices needs to be filled with the developer, the container rotating device rotates the developer container to transfer the developer in the developer container to the opening in accordance with a rotation movement of the developer container.

Abstract: In a method and an apparatus for removing an image forming substance such as toner from an image holding member such as a sheet of transfer paper, a CCD sensor detects an unremoved image formed by a stamp, additional writing, etc. and left on the transfer paper sheet after toner separating processing is performed with respect to the transfer paper sheet by a liquid-providing toner-separating unit. A discriminating mark such as a punch, a mark o, etc. is additionally provided to the transfer paper sheet having the detected unremoved image by a discriminating mark providing unit. The transfer paper sheet having the discriminating mark is automatically sorted by a sorting unit and is discharged onto a paper discharging tray. The toner removing apparatus may have an unrecognizing device for blotting the unremoved image such as a seal print, a signature, etc. on the transfer paper sheet.

Abstract: A color image forming apparatus having a revolving type developing unit detachably installed therein. The revolving type developing unit includes a plurality of different color developing devices each having a developing roller therein. Each of the developing rollers is movably mounted on the developing device so that a gap between each of the developing rollers and a periphery of a photoconductive drum which is to be formed when the revolving type developing unit is set in the color image forming apparatus is enabled to be adjusted.

Abstract: An image forming apparatus includes an image bearing member, a developing device to develop a latent image on a surface of the image bearing member, a developer bearing member including a magnet therein, which bears developer on a surface thereof by a magnetic force of the magnet and carries the developer towards a developing position facing the image bearing member by being rotated, a limiting member that is placed facing the developer bearing member so as to limit a thickness of a layer of the developer borne on the developer bearing member, and a developing device casing.

Abstract: In a method for repeatedly using an image holding member such as a sheet of paper, toner for an electronic photograph is constructed such that a maximum value of viscoelasticity of the toner shown by tan .delta. is equal to or smaller than 3 in the range of a heating temperature when the toner is heated and fixed to the image holding member. Such toner has sufficient elastic or cohesive force. Accordingly, when the toner is heated and fixed to the paper sheet, no excessive adhesive force is caused to such an extent that paper fibers of the paper sheet eat into the toner attached to the paper sheet. Accordingly, after an aqueous solution including a surfactant is supplied to the paper sheet by a liquid supplying unit, the toner is softened by heat from heating rollers so that the toner is attached to a surface of an offset belt.

Abstract: A color image forming apparatus having a revolving type developing unit detachably installed therein. The revolving type developing unit includes a plurality of different color developing devices each having a developing roller therein. Each of the developing rollers is movably mounted on the developing device so that a gap between each of the developing rollers and a periphery of a photoconductive drum which is to be formed when the revolving type developing unit is set in the color image forming apparatus is enabled to be adjusted.

Abstract: An image forming apparatus including a fixing roller and a pressure roller in which a temperature of the fixing roller and/or the pressure roller is changed differently depending on an operation mode. In particular, the temperature of the fixing roller and/or pressure roller of an operation of a non-full color mode is changed to a lesser degree than that of a full color mode operation. In another embodiment of the present invention, the temperature of the fixing roller is set to an appropriate value when an environment temperature sensor is not working properly, to produce high quality images. In yet another embodiment according to the present invention, the temperature of the fixing roller is set to an appropriate value, when an image forming apparatus is turned off for a predetermined period of time, to produce high quality images.

Abstract: A method for stabilizing pranoprofen, comprising placing an aqueous solution of pranoprofen in coexistence with an antioxidant, or placing an aqueous solution of pranoprofen under the conditions of limited supply of oxygen, and a stable aqueous preparation of pranoprofen, comprising pranoprofen and an antioxidant. According to the present invention, the decomposition of pranoprofen in an aqueous solution of pranoprofen is remarkably suppressed. In particular, pranoprofen becomes stable to light, thus permitting long-term preservation of an aqueous solution, specifically a liquid preparation, of pranoprofen.

Abstract: A method for stabilizing pranoprofen, comprising placing an aqueous solution of pranoprofen in coexistence with an antioxidant, or placing an aqueous solution of pranoprofen under the conditions of limited supply of oxygen, and a stable aqueous preparation of pranoprofen, comprising pranoprofen and an antioxidant. According to the present invention, the decomposition of pranoprofen in an aqueous solution of pranoprofen is remarkably suppressed. In particular, pranoprofen becomes stable to light, thus permitting long-term preservation of an aqueous solution, specifically a liquid preparation, of pranoprofen.

Abstract: In a method for repeatedly using an image holding member such as a sheet of paper, toner for an electronic photograph is constructed such that a maximum value of viscoelasticity of the toner shown by tan .delta. is equal to or smaller than 3 in the range of a heating temperature when the toner is heated and fixed to the image holding member. Such toner has sufficient elastic or cohesive force. Accordingly, when the toner is heated and fixed to the paper sheet, no excessive adhesive force is caused to such an extent that paper fibers of the paper sheet eat into the toner attached to the paper sheet. Accordingly, after an aqueous solution including a surfactant is supplied to the paper sheet by a liquid supplying unit, the toner is softened by heat from heating rollers so that the toner is attached to a surface of an offset belt.

Abstract: In an image forming apparatus, toner images of respective colors are sequentially formed on an image carrier. A primary image transfer unit sequentially transfers the toner images from the image carrier to an intermediate image transfer belt one above the other, thereby producing a composite color image on the belt. A secondary image transfer unit transfers the composite color image from the belt to a sheet or similar transfer material. When the belt makes a turn without image transfer, i.e., idles, an electric field output lower than an electric field output preselected for image formation is applied to the primary image transfer unit.

Abstract: A predetermined processing liquid is supplied by a liquid supplying unit to a sheet of transfer paper having a surface on which toner is stably attached. An adhesive state of the toner on the transfer paper sheet is changed to an unstable adhesive state. The processing liquid is constructed by water, aqueous solutions of a surfactant, a water-soluble polymer, etc. The transfer paper sheet including the processing liquid is fed to a toner separating unit. While the toner is heated and pressurized in the toner separating unit, the toner is attached to a separating roller having a surface on which the softened toner is easily attached. The toner separating unit then separates only the transfer paper sheet from the surface of the separating roller by a separating claw. The processing liquid is removed from the transfer paper sheet by heating the transfer paper sheet, etc. using a drying unit such that the transfer paper sheet can be reused for a copying machine, etc.

Abstract: In a method and an apparatus for removing an image forming substance such as toner from an image holding member such as a sheet of transfer paper, an unstabilizing agent is provided to the image holding member. An attaching state between the image forming substance and the image holding member stably attaching the image forming substance on a surface thereof is changed to an unstable state by the unstabilizing agent. The image forming substance is separated and removed from the image holding member by making a separating member come in close contact with the image forming substance on the image holding member having the provided unstabilizing agent. A processing situation mark showing a processing situation of removal of the image forming substance is formed in the image holding member. The processing situation mark can be removed from the image holding member by the image forming substance removing processing.

Abstract: This invention provides a method for using paper repeatedly by flaking and removing an image from the paper, even if the image has been touched up on the paper with handwriting, and a preferable printing tool used in the method. The method includes the steps of touching up the image on the paper with the printing tool containing a main component of a colored thermoplastic resin particle and being formed into a stick shape by solidifying the resin particle alone or with binder resin sticking to the resin particle. The image can be formed on the paper with a liquid-applying type of printing tool having a liquid container containing a resin dispersion liquid being formed by dispersing the resin particle in a solvent.

Abstract: An algin-containing food or beverage comprises a low-molecular weight algin which has a weight-average molecular weight in the range of 10,000-900,000 and still functions as a dietary fiber and has beneficial effects on the health. The algin can be prepared by subjecting a high-molecular weight naturally occurring algin or its derivative to heat treatment at a temperature of 100.degree.-200.degree. C. under pressure.

Abstract: In a method and an apparatus for removing an image forming substance such as toner from an image holding member such as a sheet of transfer paper, an unstabilizing agent is provided to the image holding member. An attaching state between the image forming substance and the image holding member stably attaching the image forming substance on a surface thereof is changed to an unstable state by the unstabilizing agent. The image forming substance is separated and removed from the image holding member by making a separating member come in close contact with the image forming substance on the image holding member having the provided unstabilizing agent. A processing situation mark showing a processing situation of removal of the image forming substance is formed in the image holding member. The processing situation mark can be removed from the image holding member by the image forming substance removing processing.

Abstract: A predetermined processing liquid is supplied by a liquid supplying unit to a sheet of transfer paper having a surface on which toner is stably attached. An adhesive state of the toner on the transfer paper sheet is changed to an unstable adhesive state. The processing liquid is constructed by water, aqueous solutions of a surfactant, a water-soluble polymer, etc. The transfer paper sheet including the processing liquid is fed to a toner separating unit. While the toner is heated and pressurized in the toner separating unit, the toner is attached to a separating roller having a surface on which the softened toner is easily attached. The toner separating unit then separates only the transfer paper sheet from the surface of the separating roller by a separating claw. The processing liquid is removed from the transfer paper sheet by heating the transfer paper sheet, etc. using a drying unit such that the transfer paper sheet can be reused for a copying machine, etc.