Voltage switch and electrophotographic color image forming apparatus using the same
AssigneeSamsung Electronics Co., Ltd.
InventorJae-sung Park
Life of this patent
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Abstract
A voltage switch for connecting a power supply with a plurality of development units in sequence, and an electrophotographic color image forming apparatus using the voltage switch. In the voltage switch, a first terminal is arranged on a circuit board and is connected to the power supply, and a plurality of second terminals are arranged in a circle on the circuit board and are connected with the plurality of development units, respectively. A rotor is rotatably coupled with the circuit board of the switch and is provided with a lead, such that as the rotor rotates about the circle, the first terminal can be electrically connected with the plurality of second terminals in sequence.
Claims16
A voltage switch, comprising:
- a first terminal disposed on a circuit board and connected to a power supply;
- a plurality of second terminals arranged in a circle on the circuit board and connected with a plurality of development units, respectively, wherein each of the plurality of development units holds a different color toner;
- and
- a rotor for rotating about the circle on the circuit board to allow the first terminal to be electrically connected with the plurality of second terminals in sequence.
An electrophotographic color image forming apparatus comprising a photoconductor on which an electrostatic latent image is formed, a plurality of development units each containing different color toner to apply the toner to the photoconductor in order to develop a visible toner image, a power supply for supplying development voltages to the plurality of development units, and a voltage switch for connecting the power supply with the plurality of development units in sequence, wherein the voltage switch comprises:
- a first terminal disposed on a circuit board and connected to the power supply;
- a plurality of second terminals arranged in a circle on the circuit board and connected with the plurality of development units, respectively, wherein each of the plurality of development units holds a different color toner;
- and
- a rotor for rotating about the circle on the circuit board to allow the first terminal to be electrically connected with the plurality of second terminals in sequence.
Dependencies are inferred from the claim text.