DENSITY DETECTING DEVICE

Japanese Patent JP3664206

B2

PROBLEM TO BE SOLVED: To completely remove soiling on the detection surface of a density sensor by using nonwoven fiber impregnated with silicone oil as a cleaning member sliding on the detection surface of the sensor.
SOLUTION: The cleaning member 8 attached to a supporting member 7 is supported to freely rock by a frame 4, and the member 7 is rocked by a driving means in a state where the center of rocking 9 is set as an axis, moved to a position shown by a dotted line 10 and restored to a home position. By such action, the member 8 slides on the detection surface of the density sensor 5, that is, the opposed surface thereof to a photoreceptor drum 1, and removes the soiling on the detection surface. A member where a felt surface layer of fluororesin is formed on base material made of wool is used as the member 8, and desirably used after it is impregnated with the silicone oil. Since the silicone oil is rich in releasing ability and is chemically inactive, the sliding ability of the felt surface layer of the member 8 on the detection surface of the sensor 5 is excellent and there is no possibility that the detection surface of the sensor 5 is damaged. As for the silicone oil, amino dentatured oil is suitable.

Tadao Mori
Tetsuro Maeda
Shigeki Nishimura

JP34386697A

June 22, 2005

November 29, 1997

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Fuji Xerox Co., Ltd

G03G21/10; G03G15/00; (IPC1-7): G03G21/10; G03G15/00

JP5158318A
JP57202554A
JP7132686A
JP2115882A
JP9006203A
JP9069213A
JP54109437A
JP59123869A

Kaori Tanaka
Michito Hiraki

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