Developing device with a developing roller and using a single-co

Details Developing device with a developing roller and using a single-co Developing device with a developing roller and using a single-co

1989-03-10

1990-02-13

Braun, Fred L.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

29132, 355259, 427145, G03G 1506, B21B 3108, B60B 500, B41M 516

Patent

active

048996890

ABSTRACT:
A developing device including a developing roller which has a resilient support layer and a dielectric layer provided on the support layer and developing an electrostatic latent image formed on a photoconductive drum through the roller by using a single-component developer, i.e. toner. The variation of development characteristics ascribable to the developing roller is suppressed by providing a resilient material which constitutes the support layer with a resistance value less than a predetermined value that is mostly determined by a relationship between the resistance value and the developing time. Further, a method is described for producing a developing roller for the developing device.

REFERENCES:
patent: 4382420 (1983-05-01), Ohnuma et al.
patent: 4760422 (1988-07-01), Seimiya et al.
patent: 4827868 (1989-05-01), Tarumi et al.

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