Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1997-07-01
1999-05-18
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
399308, G03G13/16
Patent
active
059050136
ABSTRACT:
An image forming apparatus of the type transferring a toner image from an image carrier to an intermediate transfer body by primary transfer, and transferring it from the intermediate transfer body to a recording medium by secondary transfer is disclosed. Before the primary transfer, a charge of the same polarity as the charge of the toner image is deposited on the intermediate transfer body. The charge deposited on the transfer body reduces the scattering or blurring of the toner image apt to occur when toners of different colors are superposed, without deteriorating the paper-free feature of the apparatus.
REFERENCES:
patent: 5187526 (1993-02-01), Zaretsky
patent: 5729799 (1998-03-01), Numao et al.
Goodrow John
Ricoh & Company, Ltd.
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