Image forming apparatus

Details Image forming apparatus Image forming apparatus

2006-05-17

2009-06-02

Gray, David M (Department: 2852)

Electrophotography

Image formation

Transfer

C399S222000, C399S299000

Reexamination Certificate

active

07542707

ABSTRACT:
An image forming apparatus including: colored toner image forming devices each developing an electrostatic image with colored toner to form a colored toner image; a transparent toner image forming device developing an electrostatic image with transparent toner to form a transparent toner image; a transfer device superimposing and transferring the colored toner images and the transparent toner image on a transfer medium; and a fixing device fixing the superimposed toner images on the transfer medium. An image forming operation by the transparent toner image forming device is controlled in such a manner that the heights of the superimposed toner images fixed by the fixing device are substantially constant. The transparent toner has an absolute value for a charge amount per unit weight smaller than an absolute value for the charge amount of each of the colored toners per unit weight.

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W.A. Lee, “The Glass Transition Temperatures of Polymers”, Polymer Handbook, Second Edition, III, pp. 139 through 111-192.

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