Electrostatic latent image developing apparatus

Details Electrostatic latent image developing apparatus Electrostatic latent image developing apparatus

1986-08-22

1988-07-05

Prescott, A. C.

Photocopying

Including fiber optics

355 14D, 355 15, G03G 1508

Patent

active

047558474

ABSTRACT:
An electrostatic latent image developing apparatus supplies toner to a latent image carrier such as a drum-shaped photosensitive body to visualize a latent image formed thereon. The toner is supplied by a rotating drum-shaped toner carrier having a portion confronting the photosensitive body adjacent thereto and another portion held in contact with toner contained in a toner container. The toner is electrostatically attracted to the toner carrier and transferred therefrom to the photosensitive body. The toner on the toner carrier is regulated into a thin toner layer by a toner layer regulating member that is resiliently held in sliding contact with the toner carrier. To prevent toner deposits from being attached to the toner layer regulating member, the toner layer regulating member is made of a material adapted to wear with the attached toner. In order to provide the toner layer regulating member with an ability to triboelectrically charge toner, whether chargeable to a polarity (-) or (+), or to control the amount of electricity on toner chargeable to a polarity (-) or (+) and prevent toner deposits from being attached to the toner layer regulating member, another material to control the amount of electricity on toner is mixed in the material which can be worn with the attached toner.

REFERENCES:
patent: 4373798 (1983-02-01), Tsukada et al.
patent: 4566776 (1986-01-01), Kondoh

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