Developing system for an electrostatic copying apparatus

Details Developing system for an electrostatic copying apparatus Developing system for an electrostatic copying apparatus

1983-03-21

1986-03-18

Braun, Fred L.

Photocopying

Including fiber optics

G03G 1508

Patent

active

045764662

ABSTRACT:
A developing system for an electrostatic copying apparatus has a primary spiral screw for conveying developer (including at least toner) in one direction with respect to the width of an area to be developed, and a secondary spiral screw arranged for receiving developers from the primary spiral screw and for conveying the received developers in a direction opposite to the conveyance direction of the primary spiral screw. The primary and secondary spiral screws have different conveyance capacities. An apertured receptacle mounted below the primary spiral screw feeds developers from the primary spiral screw to the secondary spiral screw.

REFERENCES:
patent: 3883240 (1975-05-01), Ito et al.
patent: 4173405 (1979-11-01), Swapceinski et al.
patent: 4354763 (1982-10-01), Koiso et al.
patent: 4457613 (1984-07-01), Kopp et al.

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