Image forming apparatus

Details Image forming apparatus Image forming apparatus

1992-12-30

1994-03-29

McCamish, Marion E.

Photocopying

Contact printing

Light boxes

118657, G03G 1509

Patent

active

052989500

ABSTRACT:
An image forming apparatus comprises a developer including a latent image carrying member, a toner carrying member and a toner container for developing an electrostatic latent image formed on the latent image carrying member, and a transfer member for transferring to a transfer medium a toner image formed on the latent image carrying member. The latent image carrying member and the toner carrying member are disposed within a given gap. The toner container holds a magnetic toner and the magnetic toner is fed onto the toner carrying member. The magnetic toner comprises a binder resin and a magnetic power and has a volume average particle diameter of from 7 .mu.m to 10 .mu.m, and the number distribution and quantity of triboelectricity of magnetic toner particles satisfy the following expressions:

REFERENCES:
patent: 3909258 (1975-09-01), Kotz
patent: 4336318 (1982-06-01), Fukumoto et al.
patent: 4518673 (1985-05-01), Noguchi et al.
patent: 4622281 (1986-11-01), Imai et al.
patent: 4946755 (1990-08-01), Inoue
patent: 4978597 (1990-12-01), Nakahara et al.
patent: 4999272 (1991-03-01), Tanikawa et al.

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