Abstract: A container for a liquid reaction mixture whereby the liquid reaction mixture is brought into contact with a heater at a specified temperature and thus a nucleic amplification reaction is promoted, which has a substrate having a front surface and a back surface and being constructed so that either or both of these surfaces are maintained in facing a heater and wells that are formed in the surface direction of the substrate separately and independently from each other and each holds the above-described liquid reaction mixture in a liquid-tight sealed state, characterized in that; the above-described wells each comprises an opening formed in the above-described substrate and blocking members whereby the front surface side and back surface side of the opening are blocked, and at least the blocking member that blocks the surface in the side being in contact with the above-described heater has a part made of a stretchable film having a thickness of 10 to 300 ?m.

Abstract: An electrophotographing apparatus includes a photosensor for sensing or detecting a reflectance of an original, and an output voltage of the photosensor is sent to a microcomputer. In response to the output voltage of the photosensor, the microcomputer controls a bias voltage which is applied to an electric conductive substrate of a photoreceptor from a bias voltage source. The bias voltage is adjusted such that a change of an exposed voltage according to the reflectance of the original can be canceled, and resultingly, the exposed voltage is kept constant. On the other hand, a developer is connected to the ground, and therefore, a voltage difference between the exposed voltage and a developing voltage becomes constant.

Abstract: A semiconductor laser device is comprised of a first lead member having a mounting portion for mounting a semiconductor laser, at least one second lead member to be connected to the semiconductor laser, and a resin mold member for unitarily molding the first and second lead members, wherein the resin mold member has a recess portion for receiving the semiconductor laser therein and for exposing therein the mounting portion of the first lead member and a part of the second lead member, and wherein the semiconductor laser is electrically connected to the first and second lead members within the recess portion.

Abstract: An image forming apparatus is loaded with a developing device capable of being easily exchanged, and a toner sensor for detecting a toner density is provided in association with the developing device. An output signal of the toner sensor approaches 0 V as a weight of a developer becomes small. Therefore, when the output signal from the toner sensor is detected prior to an agitating screw is operated when a power source is turned-on, it is possible to determine whether a developing device attached at that time is an unused or used one in accordance with the output signal. In addition, the output of the toner sensor when the developing device is an unused one is stored in a backed-up memory as a reference value for controlling a toner density during an actual operation.

Abstract: An electrophotographic copying machine includes a paper feeding tray and a paper discharging tray respectively attached to both end surfaces of a body, each of which has a first, a second and a third tray plates which are rotatably connected to each other. When the machine is not used, the first, second and third tray plates are contained in the body in a state where the same are collapsed and folded over each other and, when the machine is used, the first, second and third tray plates are withdrawn and developed. A plurality of ribs which are extended in a paper feeding direction are on one upper surface of the first plate attached to the body in a rotatable manner, and a plurality of through holes, or slits, which receive the ribs when the first, second and third tray plates are collapsed are formed on the second and third tray plates.

Abstract: A process of assembling a semiconductor laser device which is reduced in number of assembling steps and a semiconductor laser device which can be produced at a reduced cost are disclosed. The semiconductor laser device comprises a stem having a lead mounting hole perforated therein and a lead extending through the lead mounting hole of the stem and fixed in an electrically isolated condition to the stem by way of an electrically insulating resin press fitted in the lead mounting hole. The lead is assembled to the stem by applying a pressure to the stem with the electrically insulating resin fitted in the lead mounting hole of the stem.

Abstract: A developing apparatus comprises a container in which a developer composed of a mixture of carrier and toner is stored and a screw conveyor for transferring and stirring the developer is disposed. The screw conveyor has a stirring blade formed in a spiral shape, and the stirring blade is cut out at nearly the center of the screw conveyor so that stagnation of the developer takes place at that interrupted portion thereof. A level sensor is disposed so as to be able to detect the level of the developer at that interrupted portion. In the interrupted portion, since stagnation of the developer takes place, pulsation of the developer produced in the case of the screw conveyor having a continuous stirring blade is suppressed, and thereby a level of the developer can be detected more accurately.

Abstract: In a method for forming articles by injection molding, in which a melted plastic material is injected into a cavity formed between a movable die and a stationary die, the method including the steps of injecting the melted plastic material into the cavity under the condition of substantially no pressure, and pressing the movable die against the stationary die during or after injection so as to press-mold the article.

Abstract: An electrophotographic copying machine includes a photosensitive drum on which an electrostatic latent image is formed, a developing apparatus for developing the electrostatic latent image into a toner image, a transferring apparatus for transferring the toner image to a copy paper supplied from a paper supplying portion, a fixing apparatus for heating the copy paper having the toner image transferred thereto to fix the toner image, and a paper ejecting roller for ejecting the copy paper having the toner image fixed thereto to the exterior of the machine body. The copying machine elements are arranged so that the copy paper transporting path from the paper supplying portion to the paper ejecting portion is divided into two assembly units, the assembly units which can be removed from respective predetermined attached positions toward the exterior of the copying machine body in a direction opposite from each other and parallel to the transporting direction of the copy paper.