Apparatus and method for removing developer from the sump of an

Details Apparatus and method for removing developer from the sump of an Apparatus and method for removing developer from the sump of an

1984-06-25

1986-01-21

Moses, R. L.

Photocopying

Including fiber optics

355 77, 430122, 118657, G03G 1506

Patent

active

045654352

ABSTRACT:
An electrostatic copying or printing machine having a developing system including a developer housing with a top access opening and a lower sump for storing a quantity of developer, a magnetic brush type developing roll for developing latent electrostatic images on the machine photoconductive member, a paddle wheel having a succession of paddles about the circumference therefor for loading developer from the sump onto the developing roll, and to facilitate clearing developer from the sump preparatory to inserting a fresh developer developer charge, at least one of the paddles being provided with a magnet substantially coextensive therewith for drawing developer from the developer sump to the paddle when the level of developer in the developer sump falls below the path of movement of the paddles, and a removable pick off baffle attachable to the developer housing adjacent the access opening when the sump is to be cleared of developer, the pick off baffle when in place intercepting developer carried by the developing roll and discharging the developer to a point exterior of the developer housing.

REFERENCES:
patent: 2975758 (1961-03-01), Bird, Jr.
patent: 3113042 (1963-12-01), Hall
patent: 3437074 (1969-04-01), Hagopian et al.
patent: 4086006 (1978-04-01), Hauser
patent: 4170287 (1979-10-01), Edwards et al.
patent: 4235194 (1980-11-01), Wada et al.
patent: 4330193 (1982-05-01), Stange
patent: 4351604 (1982-09-01), Karasawa et al.
patent: 4395114 (1983-07-01), Ura et al.
patent: 4435073 (1984-03-01), Miller

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