Image forming apparatus including intermediate transfer...

Electrophotography – Machine operation – Job mode

Reexamination Certificate

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Reexamination Certificate

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07471912

ABSTRACT:
An image forming apparatus having a transfer device transferring a toner image from an intermediate transfer member to a sheet, a sheet feeder feeding the sheet to the transfer device, a sheet re-feeder, which reverses the front side and back side of the sheet to re-feed the sheet to the transfer device, and a controller, which controls the execution of a two-side copying mode, wherein when a feeding of the sheet from the sheet feeder is interrupted with a first toner image to be transferred to another sheet fed from the sheet re-feeder and a second toner image to be transferred to the sheet fed from the sheet feeder being on the intermediate transfer member, the controller controls the transfer device to perform a transfer of the first toner image and inhibit a transfer of the second toner image.

REFERENCES:
patent: 4935786 (1990-06-01), Veeder
patent: 6078760 (2000-06-01), Abe et al.
patent: 2005/0158085 (2005-07-01), Murakami et al.
patent: 3-102081 (1991-04-01), None
patent: 7037304 (1995-02-01), None

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