Abstract: A chip antenna comprising a rectangular substrate essentially comprising barium oxide, aluminum oxide and silica; a conductor which is formed inside the substrate and spiralled along the longitudinal direction thereof; a feeding terminal provided on the side and bottom faces of the substrate so as to apply a voltage to the conductor; and a grounding terminal which is provided on the side and bottom faces of the substrate and connects to a grounding electrode on a mounting board at the time of packaging. One end of the conductor forms a feeding end connecting to the feeding terminal and the other end forms a free end in the substrate. Capacitance is generated between a portion of the conductor and the grounding terminal.

Abstract: An image forming apparatus includes a photoconductor, a developing electrode, at least a magnet disposed in the developing electrode, and a developer. The developing electrode is reciprocally movable against a rotation axis of the photoconductor. Thus, a setting angle of a magnetic pole of the magnet is not varied, even when the developing electrode is moved for cancelling decentering and deflection of the photoconductor and the developing electrode.

Abstract: Disclosed is an electrophotographic apparatus capable of producing a high-quality image free from image defects such as fine line dropouts. A photoconductor drum is used that has a magnet mounted therein in immovable fashion. After an electrostatic latent image is formed, the image is brought into contact with magnetic developer in a developer reservoir, causing the developer to be attracted to the photoconductor surface by magnetic force. When the photoconductor drum is rotated past an electrode roller to which an AC voltage is applied, toner is left only in image areas and the latent image is developed into a visible image. A sheet-like sealing member contacting the photoconductor is disposed on the upstream side of the developer reservoir in the rotating direction of the photoconductor drum. A conductive layer is provided on the surface of the sealing member opposite the surface thereof contacting the photoconductor.

Abstract: A developing unit for use in image forming apparatus includes a unit housing divided in three chambers, i.e. a toner applying chamber facing a photoreceptor and first and second toner replenishing chambers, by respective partition walls each having an opening as a passage for toner. The first and second chambers have rotation frames, respectively. Each frame has a radially extending arm to the end of which a toner transporting sheet is connected. Each sheet is provided with a friction film. When each frame rotates, the sheet with the friction film is pulled by the frame for its rotation under the toner so as to be deformed in the form of a circular arc. The toner is transported forwardly by the friction force of the friction film. When the amount of toner is reduced in each chamber, each sheet may resiliently restore to its original shape to contact the inner surface of the corresponding chamber so that a small amount of toner on the bottom of each chamber can be carried forwardly.

Abstract: An electrophotographic developing apparatus includes a photoreceptor drum supported for rotation in one direction, a rotatably supported developing roller disposed in face-to-face relation with the photoreceptor drum for supplying a single-component developing material, a rotatably supported charge transfer roller disposed on one side of the developing roll remote from the photoreceptor drum and in face-to-face relation with the developing roller for delivering the developing material onto the developing roller, a charged layer regulating member disposed around the charge transfer roller and cooperable with the charge transfer roller to regulate a charging and a layer of the developing material, and a developing hopper for accommodating the developing material to be supplied to the charge transfer member. In operation, the developing material within the hopper is carried by the charge transfer roller in the form of a charged toner layer which is subsequently delivered onto the developing roller.

Abstract: Here is disclosed a needle detacher for syringe adapted to detach a needle after use for injection or blood-collecting from the associated syringe cylinder for easy and safe disposal, comprising a container main body, a lid assemble consisting of inner and outer lids, a needle chute opening formed through the outer lid, and a needle trap opening defined by the inner and outer lids so that a syringe cylinder or the outer lid may be forcibly rotated with the needle neck being held in the needle trap opening to detach the needle from the syringe cylinder and then the needle may be received through the needle chute opening into the container main body, wherein the needle chute opening is adapted to be closed by the inner lid which is slidable with respect to the outer lid so that the needle neck can be held by the inner lid cooperating with the outer lid.