Electrophotography – Control of electrophotography process – Control of transfer
Reexamination Certificate
2006-11-21
2006-11-21
Beatty, Robert (Department: 2852)
Electrophotography
Control of electrophotography process
Control of transfer
C399S167000, C399S302000
Reexamination Certificate
active
07139497
ABSTRACT:
An electrophotographic color image forming apparatus of the present invention includes a plurality of image forming sections each including an image carrier and image transferring means. Toner images of different colors are sequentially transferred from the image carriers to a sheet being conveyed by an endless belt while electrostatically adhering to the belt, completing a color toner image. Assuming that the surface of each image carrier and that of the belt move at speeds of Vd and Vb, respectively, a ratio of Vb/Vd can be varied by the user of the apparatus. In addition, assuming that a surface of an intermediate transferring mechanism and a surface of a recording medium move at speeds of Vp and Vi, respectively, the ratio of Vp/Vi can be varied by the user.
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