Image forming apparatus with charger of image carrier using magn

Details Image forming apparatus with charger of image carrier using magn Image forming apparatus with charger of image carrier using magn

1993-10-12

1994-11-22

Grimley, A. T.

Photocopying

Contact printing

Light boxes

361225, G03G 1502

Patent

active

053673654

ABSTRACT:
An image forming machine has a charging roller on which magnetic particles are supplied to form a magnetic brush and an image forming body which is charged under the condition that the magnetic brush on the charging roller is in an alternating electric field. When the distance between a regulating member that regulates an amount of the magnetic particles passing through and the charging roller is defined to be DB and the distance between the image forming body and the charging roller is defined to be DI, an inequality of 0.7 DB.ltoreq.DI.ltoreq.1.0 DB is satisfied. More preferably, DB is in the relation of 0.2.ltoreq.DB.ltoreq.1.0 in mm.

REFERENCES:
patent: 4174903 (1979-11-01), Snelling
European Search Report.

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