Photocopying – Contact printing – Light boxes
Patent
1992-04-02
1994-06-21
Grimley, A. T.
Photocopying
Contact printing
Light boxes
118652, 355219, 355270, 355296, G03G 1506
Patent
active
053232151
ABSTRACT:
A rotating photosensitive body has a plurality of charging members on its surface. A direct voltage whose polarity is opposite to the charging polarity of the photosensitive body is applied to at least one of the charging members, and a direct voltage whose polarity is equal to the charging polarity thereof is applied to at least one of the other charging members.
REFERENCES:
patent: 3764207 (1973-10-01), Obuchi
patent: 4756992 (1988-07-01), Cheng
patent: 4959688 (1990-09-01), Koitabashi
patent: 5066982 (1991-11-01), Hosoya et al.
patent: 5103265 (1992-04-01), Kohyama
Endou Mitsuharu
Ohtaka Yoshimitsu
Grimley A. T.
Lee Shuk Y.
Tokyo Electric Co. Ltd.
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