CLEANING METHOD OF PHOTORECEPTOR AND ELECTROPHOTOGRAPHIC COPYING MACHINE

Japanese Patent JP3313219

B2

PURPOSE: To provide the cleaning method of a photoreceptor not generating a failure in cleaning by sufficiently attenuating the potential by electrification of the photoreceptor charged by a transfer means and an electrophotographic copying machine not affecting the accuracy for receiving light of a photodetecting means with light emitted from a light irradiation means.
CONSTITUTION: In the electrophotographic copying machine provided with the photoreceptor 1, a transfer means 3 having a transfer member 8 to which a transfer voltage is applied by a transfer electrifying means 4 having a voltage control means, a cleaning means 2 removing toner remaining on the photoreceptor 1 after a transfer process and the electrifying means 5 of the photoreceptor 1, a light irradiation means 6 is provided between the transfer means 3 and the cleaning means 2 and the photoreceptor 1 is irradiated with discharged light for attenuating the potential by the electrification made on the photoreceptor 1 by the transfer means 3, by the light irradiating means 6 to attenuate the potential by the electrification and then, cleaned by the cleaning means 2 to make the wavelength of the light emitted from the light irradiation means 6 different from that of the light received by the photodetecting means.

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Hajime Koyama
Manabu Mochizuki
Power Imai
Sadao Takahashi

JP33285493A

August 12, 2002

December 27, 1993

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株式会社リコー

G03G15/00; G03G15/16; G03G21/06; G03G21/08; G03G21/10; (IPC1-7): G03G21/10; G03G15/00; G03G15/16

JP6395487A
JP647086A
JP60165967U

Morio Sada

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