Non-contact developer seal

Details Non-contact developer seal Non-contact developer seal

1985-09-05

1986-10-14

Prescott, A. C.

Photocopying

Including fiber optics

355 3R, 355 3DR, 355 14D, 355 15, 118653, 430120, G03G 1508

Patent

active

046169199

ABSTRACT:
A sealing apparatus in a magnetic brush development device is located in a non-contact fashion between the photoconductor drum and the magnetic brush roll. The seal has a plurality of ridges along the length of the seal that creates a differential air flow under the rotating photoconductor drum. This differential air flow prevents toner dust and bead carryout from axially migrating past the end of the photoconductor and magnetic roll.

REFERENCES:
patent: 3336904 (1967-08-01), Obuchi
patent: 3552848 (1971-01-01), Van Wagner
patent: 3635196 (1972-01-01), Tsilibes
patent: 3647293 (1972-03-01), Queener
patent: 3830646 (1974-08-01), Chen
patent: 4213617 (1980-07-01), Salger
patent: 4258372 (1981-03-01), Ishikawa
patent: 4292922 (1981-10-01), Yamazaki et al.
patent: 4304192 (1981-12-01), Mayer
patent: 4361396 (1982-11-01), Uchida
patent: 4370051 (1983-01-01), Matsuyama et al.
patent: 4575217 (1986-03-01), Bothner

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