Photocopying – Contact printing – Light boxes
Patent
1991-06-12
1993-02-02
Moses, Richard L.
Photocopying
Contact printing
Light boxes
355222, 355271, G03G 1502
Patent
active
051841800
ABSTRACT:
In the copying machine including an electrifier, a developer, a developer roller, a transcriber, a discharging brush, a cleaning blade, a cleaning portion and a front and a rear guides, the guide and the discharging brush are grounds, the predetermined symmetric AC voltage is directly applied to the drum to generate the asymmetric AC power in the surface of a photosensitive drum.
REFERENCES:
patent: 4338017 (1982-07-01), Nishikawa
patent: 4341457 (1982-07-01), Nakahata et al.
patent: 4994861 (1991-02-01), Brandon et al.
Gold Star Co. Ltd.
Moses Richard L.
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