Toner transfer back suppressing color image forming apparatus

Details Toner transfer back suppressing color image forming apparatus Toner transfer back suppressing color image forming apparatus

2006-07-18

2006-07-18

Gray, David M. (Department: 2852)

Electrophotography

Image formation

Transfer

C399S297000, C399S298000, C399S111000, C399S259000, C399S235000, C399S359000

Reexamination Certificate

active

07079798

ABSTRACT:
A multi color image forming apparatus includes a plurality of stations arranged side by side for forming unique mono-color toner images using mono-color developers each having a different mono-color toner. Each of the plurality of stations includes an image bearing member for bearing a latent image, and a developing device for visualizing the latent image into the mono-color toner image. A conveying device is provided to convey a transfer medium. A transfer device is provided to transfer the mono-color toner images from the image bearing members to the transfer medium. Charge ability of prescribed mono-color toner included in the mono-color developer used in the upstream station is smaller than that used in the downstream station.

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