Developer unit utilizing a non-magnetic single component develop

Details Developer unit utilizing a non-magnetic single component develop Developer unit utilizing a non-magnetic single component develop

1991-03-21

1992-12-08

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118653, 355245, 355259, G03G 2100

Patent

active

051702134

ABSTRACT:
A developer unit includes a porous conductive resilient member which rotates while partly contacting a developer holder to charge a non-magnetic single component developer and to supply it to the surface of the developer holder. A conductive constraining member forms a uniform thin layer of developer on the developer holder and also charges the developer to a given level. A developing bias voltage is applied to the developer holder via a rotatable fibrous charging member to cause the developer to fly to an image area of an electrostatic latent image formed on a latent image carrier which is disposed in opposing relationship with the developer holder with a gap therebetween. The bias voltage is also applied to the constraining member and to the charging member.

REFERENCES:
patent: 4743937 (1988-05-01), Martin
patent: 4835565 (1989-05-01), Nagatsuna et al.
patent: 4947211 (1990-08-01), Ono et al.
patent: 5017967 (1991-05-01), Koga
patent: 5030996 (1991-07-01), Tajima et al.

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