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Patent Searching and Data


Title:
BRUSH CHARGING DEVICE AND COLOR IMAGE FORMING APPARATUS USING THE SAME
Document Type and Number:
Japanese Patent JP2005128322
Kind Code:
A
Abstract:

To provide a brush charging device uniformly charging the surface of a photoreceptor drum by preventing the disturbance of rotation brush hair.

A rotation brush 41 is brought into pressing contact with the surface of the photoreceptor drum 21, the rotation brush 41 and the photoreceptor drum 21 are made to be rotated at the same circumferential speed in the respective arrow directions A, B and, then, the outer periphery of the rotation brush 41 and the outer periphery of the photoreceptor drum 21 are moved at the same speed in the same direction on the contact part between the rotation brush 41 and the photoreceptor drum 21. The inclination of the hair of the rotation brush 41 is set so as to take a direction along the rotation direction of the surface of the photoreceptor drum 21. Therefore, the hair of the rotation brush 41 is always aligned in the peripheral direction, the disturbance of hair alignment is not reflected as the irregularity of charging of the surface of the photoreceptor drum 21 and the surface of the photoreceptor drum 21 is uniformly charged.


Inventors:
TAKEZAWA YOICHI
Application Number:
JP2003000364823
Publication Date:
May 19, 2005
Filing Date:
October 24, 2003
Export Citation:
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Assignee:
SHARP KK
International Classes:
G03G15/02; A46B7/10; (IPC1-7): G03G15/02; A46B7/10
Attorney, Agent or Firm:
倉内 義朗