摘要:
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.
摘要:
A rotary element assembly structure in which a rotary element 53 is assembled to a tip side of a hollow shaft B1 provided upright on a pedestal 60. A cylindrical portion 53c for fitting with the hollow shaft is provided to a rotation center portion of the rotary element. In the cylindrical portion, a hook strut portion 53s that has a hook portion 53f overhanging in the radial direction at its tip side and that extends substantially in the fitting direction is arranged. A base end portion of the hook strut portion and a base end portion of the cylindrical portion are coupled with each other by a resin-made thin plate portion 53p. A small diameter portion B1s which is smaller in diameter than a hollow portion B1d of the hollow shaft is provided on the tip side of the hollow shaft. The radius of the overhang tip portion of the hook portion is set to be greater than the radius of the small diameter portion of the hollow shaft, and to be smaller than the radius of the hollow portion. By fitting the hollow shaft with the cylindrical portion of the rotary element, the hook portion on the tip side of the hook strut portion is pushed into the hollow portion via the small diameter portion on the tip side of the hollow shaft. Thereby, the hook portion engages with a stepped portion formed by the hollow portion and the small diameter portion.
摘要:
Provided are a toner and a toner manufacturing method with which high image density and a broad range of color reproduction are obtained, and with which high-quality images are also obtained. The toner is composed of toner particles that comprise a binding resin containing a polyester resin and a colorant, and contains 10-1,500 ppm of a metal element selected from titanium, germanium, and aluminum, and a cyclic phenol sulfide represented by general formula (1) selected from thiacalixarene, sulfinyl thiacalixarene and sulfonyl thiacalixarene.
摘要:
A method for manufacturing a wiring substrate includes forming a first pad and a second pad on one side of a substrate, plating a surface of the second pad to form a bonding pad used for a wire-bonded connection, covering a surface of the first pad with an adhesive layer, adhering solder powder to the adhesive layer, applying flux containing halogen to the substrate, and melting the solder powder and covering the first pad with a solder to form a connection pad used for a flip-chip-connection. The flux has a halogen concentration of less than or equal to 0.15 wt %.
摘要:
An adapter of the present invention is used to connect between a lead terminal of an electronic component and a contact of a connecting device. The adapter includes a first connecting part, adapted for electrical and mechanical connection to the lead terminal; a second connecting part, disposed at a spaced relation to the first connecting part in a length direction of the electronic component and connectable to the contact electrically and mechanically; and an elastically deforming part, provided between the first and second connecting parts and elastically deformable in accordance with thermal expansion deformation or thermal contraction deformation in the length direction of the electronic component.
摘要:
It is an object of the present invention to restrain the entire height of a multi-directional input apparatus called a joystick. As shown in FIG. 2, in order to operate a set of upper and lower turning members (40A) and (40B), convex operating portions (42A) and (42B) provided on axially intermediate portions of the turning members (40A) and (40B) are projected downward or upward. A hoisting and lowering slider (50) and a spring (60) for holding the turning members (40A) and (40B) at their neutral positions are disposed on the side where the operating portions (42A) and (42B) are projected such as to be located around the operating portions (42A) and (42B). In order to turnably support the operating member (30), a support portion (32) having a large diameter is provided on an axial portion of the operating member (30) on the opposite side from the side where the operating portions (42A) and (42B) are projected. Turning centers of the operating member (30) and the turning members (40A) and (40B) are located on an upper portion or lower portion in the case (10), and the hoisting and lowering slider (50) and the spring (60) are efficiently accommodated in the lower or upper space.
摘要:
According to the present invention, an elevating means for elevating and lowering the spindles constituting the disc holding means and a disc playing means is configured so that a single part simultaneously performs these operations. Since the same part is driven to perform these operations, elevating and lowering timings for the spindles and the disc playing means can be easily matched to enable the elevation and lowering without changes in the gap between a played disc being elevated or lowered and held discs in a housing section, thereby preventing the discs being elevated or lowered from contacting with each other.
摘要:
It is an object of this invention to provide a light and inexpensive disc changer that does not require a stocker having a plurality of shelves or a plurality of subtrays. A group of spacers (40) held by a disc holding means are driven by a vertical drive means to select any disc (12) of a group of discs (12) held by the spacers (40). A spindle drive means detaches a holding claw (27). A horizontal transfer means transfers any disc (12) supported on a subtray (11) to a sound recording/reproduction position, and a disc clamp means clamps the disc.