Carrier particle loosening device

Details Carrier particle loosening device Carrier particle loosening device

1990-04-09

1991-08-27

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355305, G03F 2100

Patent

active

050437607

ABSTRACT:
In an electrostatographic copier or printer utilizing developer material including magnetic carrier particles, a rotatable, multiple magnetic pole device, located on the backside of an image bearing member being cleaned by a cleaning apparatus, assists magnetic carrier particle removal by creating fast changing and pulsating magnetic fields that disembed and loosen embedded magnetic carrier particles from the image bearing member.

REFERENCES:
patent: 3993022 (1976-11-01), Zimmer
patent: 4111546 (1978-09-01), Maret
patent: 4571070 (1986-02-01), Tomita
patent: 4601569 (1986-07-01), Garris
patent: 4723144 (1988-02-01), Silverberg
patent: 4851880 (1989-07-01), Ziegelmuller et al.
patent: 4918488 (1990-04-01), Creveling et al.

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