Single-component development system with intermediate donor memb

Details Single-component development system with intermediate donor memb Single-component development system with intermediate donor memb

1991-12-23

1993-12-14

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118661, 355246, 355259, G03G 1506

Patent

active

052707822

ABSTRACT:
An apparatus for developing an electrostatic latent image on an image support surface. A rotating advancing member advances single component developer material from a toner supply sump in a chamber to an intermediate donor roll. The intermediate donor roll transports a metered amount of developer material to a down roll adjacent to the latent image where the developer material is attracted to the latent image for development thereof. The intermediate donor roll is provided in configuration with the donor roll for preventing escape of developer material from the chamber to increase the life of mechanical components and to decrease background.

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