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Patent Searching and Data


Title:
CHARGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/131293
Kind Code:
A1
Abstract:
This charging device is provided with: a discharge wire; a grid electrode; and a cleaning brush that slides into contact with the grid electrode and cleans the grid electrode. Hairs (503) of the cleaning brush are each configured such that in a sectional shape orthogonal to the longitudinal direction, 10≥N≥3 and r2/r1≥0.1 are established, where r1 denotes the radius of a smallest circle (C1) including the entire hair (503), projected parts of the hair (503) having lengths of 65% or larger of r1 from the center (C2) of the smallest circle (C1) at the outer diameter side of the outline of the hair (503) are set as feet (503a), N denotes the number of feet (503a), and r2 denotes the largest distance in a radial direction from the outline of the hair (503) between each foot (503a) and any foot (503a) adjacent to the foot (503a) to the smallest circle (C1).

Inventors:
FUKUDA, Tadashi (30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 〒1468501, JP)
KITAJIMA, Kenichiro (30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 〒1468501, JP)
FUKAZAWA, Toshiya (30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 〒1468501, JP)
TAKIZAWA, Hitoshi (30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 〒1468501, JP)
Application Number:
JP2018/046424
Publication Date:
July 04, 2019
Filing Date:
December 17, 2018
Export Citation:
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Assignee:
CANON KABUSHIKI KAISHA (30-2, Shimomaruko 3-chome Ohta-k, Tokyo 01, 〒1468501, JP)
International Classes:
G03G15/02; G03G21/00
Foreign References:
JP2006091484A2006-04-06
JP2005264399A2005-09-29
JP2002309449A2002-10-23
JP2011191685A2011-09-29
JP2002372838A2002-12-26
US6378161B12002-04-30
Attorney, Agent or Firm:
CHIKASHIMA,Kazuo et al. (6F SANKI Shiba Kanasugibashi Building, 4-3 Shiba 1-chome, Minato-k, Tokyo 14, 〒1050014, JP)
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