Unlock instant, AI-driven research and patent intelligence for your innovation.

Voltage supplying unit of developing device and image forming apparatus having the same, and a method thereof

A developing device and a technology for voltage supply, which are applied to equipment for electrical recording technology using charge patterns, electrical recording technology applying charge patterns, electrical recording techniques, etc., can solve problems such as increased manufacturing costs and increased switches.

Inactive Publication Date: 2008-01-16
HEWLETT PACKARD DEV CO LP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, as the number of developing devices 40y, 40m, 40c, and 40k increases, the number of switches 91, 93, 95, and 97 needs to be increased, resulting in an increase in manufacturing cost.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Voltage supplying unit of developing device and image forming apparatus having the same, and a method thereof
  • Voltage supplying unit of developing device and image forming apparatus having the same, and a method thereof
  • Voltage supplying unit of developing device and image forming apparatus having the same, and a method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Reference will now be made in detail to embodiments of the present general inventive concept, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like elements throughout. The embodiments are described below in order to explain the present general inventive concept by referring to the figures.

[0032] As shown in FIG. 3 , the image forming apparatus 100 according to the present general inventive concept includes: an input unit 110, which is provided with an input signal by a user; a communication unit 120, which receives image data from a host (not shown); a developing device group 130, includes a plurality of developing devices 131Y, 131M, 133C, and 133K; a voltage generating section 140 that generates developing voltages required for the developing devices 131Y, 131M, 133C, and 133K to perform development; a voltage switching section 150 that provides and 133K supply the developing voltage generated in the voltage generating...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An image forming apparatus includes a plurality of developing devices, a voltage generating part to generate a developing voltage, first switching parts to supply the voltage generated in the voltage generating part to a predetermined developing device out of the plurality of developing devices, a second switching part to selectively supply the developing voltage generated in the voltage generating part to the first switching parts, and a controller to control the first switching parts and the second switching part.

Description

technical field [0001] The present general inventive concept relates to an image forming apparatus, and more particularly, to a voltage supply unit of a developing device and an image forming apparatus having the same voltage supply unit and a method thereof. Background technique [0002] A conventional image forming device performs laser scanning on a charged photoconductor at a constant potential to form an electric latent image, coats a developer of a predetermined color on the electrostatic latent image, converts and fixes the developer on printing paper to Form a color image. The colors of developers used in color image forming apparatuses generally include yellow (Y), magenta (M), cyan (C) and black (K). [0003] Methods of forming color images are classified into: a single-pass type having four respective laser scanning units for four photoreceptors; and a multi-pass type having one laser scanning unit and one photoreceptor. [0004] FIG. 1 is a schematic diagram s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08G03G15/00
CPCG03G15/065G03G15/0121G03G21/14
Inventor 金旻宣
Owner HEWLETT PACKARD DEV CO LP