Electrophotography – Machine operation – Job mode
Reexamination Certificate
2006-08-25
2008-12-30
Grainger, Quana M (Department: 2852)
Electrophotography
Machine operation
Job mode
Reexamination Certificate
active
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
Kawamura Takuya
Maeda Yuichiro
Sakai Akihiko
Takata Shin-ichi
Canon Kabushiki Kaisha
Grainger Quana M
Rossi Kimms & McDowell LLP
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