Abstract: A power supply unit supplies power to a load, and the power supply unit includes a power factor corrector, a DC conversion module, and an isolated conversion module. The power factor corrector is plugged into a first main circuit board and converts an AC power into a DC power. The DC conversion module is plugged into the first main circuit board and converts the DC power into a main power. The isolated conversion module includes a bus capacitor, the bus capacitor is coupled to the DC conversion module through a first power copper bar, and coupled to the power factor corrector through a second power copper bar. The first power copper bar and the second power copper bar are arranged on a side opposite to the first main circuit board, and are arranged in parallel with the first main circuit board.

Abstract: In the particular embodiment disclosed in the specification, an electrostatic image forming arrangement includes a photoreceptor in the form of a continuous belt which is moved past four development stations each containing a different colored toner which incorporates ferromagnetic material. At each development station a developer roll conveys toner in closely spaced relation to the surface of the photoreceptor and a DC-biased AC voltage is applied to the developer roll to cause the toner to be transferred to an electrostatic image on the photoreceptor. A magnet member mounted on the opposite side of the photoreceptor produces a magnetic field which holds toner on the image-receiving surface permitting a greater range of variation for the DC-biased AC toner transfer voltage.

Abstract: An improved method and apparatus for the cracking of walnuts (30) is provided, and particularly Eastern black walnuts, wherein the surfaces of the shells (32) of the walnuts (30) are first altered to present compression zone(s) (132, 134), and the walnuts (30) are then cracked by subjecting the shells (32) thereof to opposed compressive forces serving to crack the shells (32) while leaving nut meat kernels intact. Preferably, the walnut shells (32) are sanded adjacent the opposed upper and lower ends (34, 36) thereof to present the zones (132, 134), with subsequent compression cracking of the shells (32), leaving a substantial fraction of the internal nut meat intact.