Development apparatus having a cross-mixing auger

Details Development apparatus having a cross-mixing auger Development apparatus having a cross-mixing auger

1991-12-23

1993-06-15

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118653, 366297, 366329, G03G 1506

Patent

active

052203824

ABSTRACT:
A dual auger development apparatus for use in an electrostatographic reproduction machine such as copier or printer, includes a pair of identical single piece auger devices and each having a shaft and a plurality of integrally formed partial blade members so as to require no assembly of the blades to the shaft. Each auger device includes a radially extending cross-mixing vane which is integrally formed on the shaft. The cross-mixing vane formed as such is spaced circumferentially from the edges of the partial blades and extends continuously the full length of the shaft within the development housing. The cross-mixing vane includes a first length portion and a second length portion, The first length portion has a radial extension that is coextensive with that of the blade members and which is greater than that of the second length portion.

REFERENCES:
patent: 3730487 (1973-05-01), Lund
patent: 4577587 (1986-03-01), Kamezaki
patent: 4723143 (1988-02-01), Enomoto
patent: 4855783 (1989-08-01), Takashima et al.
patent: 4974023 (1990-11-01), Aimoto et al.
patent: 4980724 (1990-12-01), Tanaka
patent: 5025287 (1991-06-01), Hilbert
patent: 5151739 (1992-09-01), Hediger

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