Toner regulating blade having a bevelled edge

Details Toner regulating blade having a bevelled edge Toner regulating blade having a bevelled edge

1994-08-26

1996-09-03

Ramirez, Nestor R.

Photocopying

Contact printing

Light boxes

355253, G03G 1508

Patent

active

055528678

ABSTRACT:
An electrostatic latent image developing device includes a rotatable developing sleeve for providing an electrostatic latent image formed on a photoreceptor with a toner so as to develop the latent image into a visual image, and a toner regulating blade which contacts at one surface with the developing sleeve so that the toner is regulated and then formed into a thin layer. The toner regulating blade has, in a surface confronting the toner bearing member, a bevelled portion which forms a wedge shaped space in a upstream side of a contact region of the blade and the developing sleeve with respect to a direction of a movement of the developing sleeve. Further, the toner regulating blade has chamfered portions in the bevelled portion at both sides thereof. Therefore, the sleeve bears a toner thin layer having a constant density.

REFERENCES:
patent: 4538898 (1985-09-01), Kanno et al.
patent: 4575220 (1986-03-01), Sakamoto et al.
patent: 4760422 (1988-07-01), Seimiya et al.
patent: 4796561 (1989-01-01), Takano et al.
patent: 4908291 (1990-03-01), Fuma et al.
patent: 4920916 (1990-05-01), Mizuno et al.

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