Title: Electric photographic device, imaging method and processing case
Application Number: 98103316 Application Date: 1998.06.12
Publication Number: 1209574 Publication Date: 1999.03.03
Approval Pub. Date: 2004.09.29 Granted Pub. Date: 2004.09.29
International Classifi-cation: G03G9/083;G03G13/09;G03G15/02;G03G21/00
Applicant(s) Name: Cannon Co., Ltd. Address:
Inventor(s) Name: Aita Suichi;Okato kentsugi;Tekai Yoshiko
Attorney & Agent: ma gao
Abstract:
    An electrophotographic apparatus includes an electrophotographic photosensitive member, and (i) a charger, (ii) an imagewise exposure device, (iii) a developing device and (iv) a transfer device, disposed in this order opposite to the photosensitive member. The charger includes a charging member including magnetic particles disposed in contact with the photosensitive member so as to charge the photosensitive member based on a voltage received thereby. The magnetic particles are surface-coated with a coupling agent having a linear alkyl group having a least 6 carbon atoms. The developing device also functions to recover residual toner remaining on the photosensitive member processing by the transfer device and the charger. Because of the coating with such a specific coupling agent, the charging magnetic particles can exhibit good triboelectric changeability for the transfer residual toner for a long period.
Time: 5
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