Title: Developing device for imaging device
Application Number: 98118735 Application Date: 1998.08.26
Publication Number: 1209577 Publication Date: 1999.03.03
Approval Pub. Date: 2003.02.26 Granted Pub. Date: 2003.02.26
International Classifi-cation: G03G15/09
Applicant(s) Name: Sharp Co. Address:
Inventor(s) Name: Ishikuro Yasuno;Shita Yoshiaki;Takatani Tohiko
Attorney & Agent: li xiaoshu
Abstract:
    A developing roller (4) to be driven rotationally is provided in a developing tank (3) containing a developer. The developer is sucked magnetically using the magnetic force of a magnet (4b) provided in a developing sleeve (4a) composing the developing roller (4). The developer is then fed into a developing area opposed to a photosensitive member (1), then collected into the developing tank (3) after the developing process is ended. The magnet is composed of an odd number of magnetic poles; developing pole (N1), feeding pole (S1), magnetic force distribution adjusting pole (N2), developer sucking pole (S2), developer separating pole (S3), auxiliary collecting pole (N3), and collecting pole (S4). Between the sucking pole (S2) and the developing pole (N1), an even number of poles are disposed. Between the developing pole (N1) and the separating pole (S3) are disposed an even number of poles.
Time: 6
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