Image recording method

Photocopying – Contact printing – Light boxes

Patent

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Details

355245, 355253, 355326, 430 45, 430 54, G03G 1509

Patent

active

051267950

ABSTRACT:
An image forming method of the present invention comprises: a first toner image formation process for forming a first toner image by forming, on a latent image carrier, a first latent image which corresponds to a first image and developing the first latent image by a first toner charged to one polarity through a development process selected from normal and reverse development process selected from normal and reverse development processes so as to correspond to the polarity of the first toner; a second toner image formation process for forming a second toner image by forming, on the latent image carrier, a second latent image which correspond to a second image and developing the second latent image by a second toner charged to the other polarity by the other development process while applying a developing bias; and a transfer treatment process for simultaneously transferring said first and second toner images to a transfer medium; wherein said developing bias VB2 satisfies the following equations:

REFERENCES:
patent: 4660961 (1987-04-01), Kuramoto et al.
patent: 4831408 (1989-05-01), Yoshikawa et al.
patent: 4833505 (1989-05-01), Furuya et al.
patent: 4882247 (1989-11-01), Maruyama et al.
patent: 4887102 (1989-12-01), Yoshikawa et al.
patent: 4937629 (1990-06-01), Maruyama et al.

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