Developing device with a toner leakage prevention member

Details Developing device with a toner leakage prevention member Developing device with a toner leakage prevention member

1990-06-18

1992-04-14

Grimley, A. T.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

118658, 355245, 355251, 355260, G03G 1508

Patent

active

051037653

ABSTRACT:
The invention provides an apparatus for developing an electrostatic latent image on a photoreceptor with developer. In the apparatus, there are provided a housing having an open end facing the photoreceptor; a developing device including a sleeve, disposed in the housing in the vicinity of the open end, for supplying developer onto the photoreceptor through the open end; feeder, disposed in the housing at a position further from the open end than the sleeve, for feeding developer to the sleeve; a ridge-like protrusion, provided on a floor of the housing at a position beneath the sleeve, for preventing developer fed by the feeder from passing through between the sleeve and the floor.

REFERENCES:
patent: 4284702 (1981-08-01), Tabuchi et al.
patent: 4385829 (1983-05-01), Nakahata et al.
patent: 4579442 (1986-04-01), Minejima
patent: 4583842 (1986-04-01), Shimono et al.
patent: 4702987 (1987-10-01), Fukuchi et al.

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