US 6,983,120 B2 | ||
Cleaning blade, cleaning device, process cartridge, and image forming apparatus using them | ||
Yasuyuki Ishii, Shizuoka (Japan); and Masato Koyanagi, Shizuoka (Japan) | ||
Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
Filed on Jan. 29, 2004, as Appl. No. 10/765,856. | ||
Claims priority of application No. 2003-023428 (JP), filed on Jan. 31, 2003; application No. 2003-155216 (JP), filed on May 30, 2003; and application No. 2004-015603 (JP), filed on Jan. 23, 2004. | ||
Prior Publication US 2004/0213607 A1, Oct. 28, 2004 | ||
Int. Cl. G03G 21/00 (2006.01) |
U.S. Cl. 399—346 | 23 Claims |
1. A cleaning blade for removing remaining developer on an electrophotographic photosensitive body usable by an image forming
apparatus comprising:
an abutment portion abutable to the electrophotographic photosensitive body; and
lubricant including:
insulating particles; and
conductive particles
wherein said lubricant coats said abutment portion,
wherein the median volume-based particle size, D50, of each of said insulating particles lies in a range of 0.2 to 1.0 μm and the median volume-based particle size, D50, of each of said conductive particles lies in a range of 0.4 to 4.0 μm, and
wherein the median volume-based particle size, D50, of each of said conductive particles lies in a range that is larger than the range of the median volume-based particle size,
D50, of each of said insulating particles.
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