Development system

Details Development system Development system

1991-04-29

1991-12-31

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118651, G03G 1506

Patent

active

050775782

ABSTRACT:
An apparatus which develops an electrostatic latent image recorded on a photoconductive member with toner. The toner in the chamber of the developer housing is fluidized and transported thereacross by an elongated member. A donor roller advances the toner particles to a latent image recorded on a photoconductive member. A rotating rod resiliently urged into contact with the donor roller charges the toner on the donor roller. In order to attract toner particles to the donor roller, the elongated member and the charging rod are electrically biased by voltages having the same polarity. The elongated member and the charging rod are electrically biased by voltages of opposite polarity to denude the donor roller of toner particles.

REFERENCES:
patent: 4480911 (1984-11-01), Itaya et al.
patent: 4876575 (1989-10-01), Hays
Xerox Copending patent application Ser. No. 07/428,726; Applicant: Brewington et al., Filed: Oct. 30, 1989.
Xerox Copending patent application Ser. No. 07/537,660; Applicant: Brewington et al., Filed: Jun. 14, 1990.

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