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High voltage power supply, method of adjusting output voltage, and image forming apparatus

A technology of output voltage and high voltage, which can be applied to the equipment of electric recording process using charge pattern, electric recording process and electric recording technique using charge pattern, etc. It can solve the problems of HVPS manufacturing steps and cost increase

Inactive Publication Date: 2014-07-02
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] This additional operation of finely adjusting the output voltage of the HVPS leads to an increase in the manufacturing steps and cost of the HVPS, and leads to many HVPS management items

Method used

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  • High voltage power supply, method of adjusting output voltage, and image forming apparatus
  • High voltage power supply, method of adjusting output voltage, and image forming apparatus
  • High voltage power supply, method of adjusting output voltage, and image forming apparatus

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Embodiment Construction

[0024] Exemplary embodiments of the present invention are described with reference to the accompanying drawings, in which exemplary embodiments of the present invention are shown. However, the description presented here is only an example for the purpose of illustration only, and is not intended to limit the scope of the present invention, so it should be understood that, without departing from the spirit and scope of the present invention, the Other equivalents and modifications are made to this description.

[0025] figure 1 It is a configuration diagram conceptually showing general techniques related to the present invention. According to the present invention, fixed resistors may be used instead of the variable resistors 100, 110, 120, and 130 included in general circuits for fine adjustment.

[0026] refer to figure 1 , the photosensitive drum 160 may be grounded, and the high voltage generated by the high voltage generating unit 12 of a general high voltage power supp...

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Abstract

A high voltage power supply (HVPS) without an output voltage adjustment, a method of adjusting an output voltage of a HVPS, and an image forming apparatus using the method are provided. The image forming apparatus includes a high-voltage output unit that outputs a high voltage produced by the HVPS, a tag that stores an offset voltage information and is attached to the HVPS, and a high-voltage output control unit that reads the tag attached to the HVPS to extract the offset voltage information, and corrects a high-voltage output control signal by using the offset voltage information to change the high voltage output by the high-voltage output unit. Accordingly, a process of adjusting an output voltage of an HVPS as a single component is not required. The manufacturing costs of HVPSs are reduced, and the process of finely adjusting an output voltage of the HVPS is simplified.

Description

[0001] This application is related to and claims priority from Korean Patent Application No. 10-2012-0152495 filed with the Korean Intellectual Property Office on December 24, 2012, the entire disclosure of which is hereby incorporated by reference. technical field [0002] Exemplary embodiments of the present invention relate to a high voltage power supply (HVPS) and an image forming apparatus including the same, and more particularly, to an HVPS, a method of adjusting an output voltage of the HVPS, and image formation using the method A device wherein the HVPS is capable of finely adjusting the output voltage of the HVPS without using a variable resistor that can finely adjust the output voltage of the HVPS. Background technique [0003] A high voltage power supply (HVPS) installed in an electrophotographic image forming apparatus controls toner particles, and supplies a high voltage for forming an image. The supplied high voltage needs to meet high precision requirements....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/46G03G15/00
CPCG03G15/5004G03G21/00G03G21/14
Inventor 金润泰
Owner SAMSUNG ELECTRONICS CO LTD