Image forming apparatus and double-sided printing method for...

Details Image forming apparatus and double-sided printing method for... Image forming apparatus and double-sided printing method for...

2007-08-17

2011-10-04

Colilla, Daniel J (Department: 2854)

Electrophotography

Document handling

Copy

C399S320000, C399S322000

Reexamination Certificate

active

08032070

ABSTRACT:
To provide an image forming apparatus and a double-sided printing method for the image forming apparatus that can prevent occurrence of an image failure by providing a sheet retracting mechanism in a conveying path of an automatic double-sided printing device and preventing occurrence of temporary stop near a high-temperature fixing device during a double-sided printing operation.The image forming apparatus includes an image forming unit1A that forms images on sheets E and F, a fixing device17that fixes the images formed by the image forming unit1A on the sheets E and F, an automatic double-sided printing device81that has a conveying path82for conveying the sheets E and F having the images fixed thereon by the fixing device17into the automatic double-sided printing device81and reversing the sheets E and F conveyed into the automatic double-sided printing device81to feed the sheets E and F to the image forming unit1A, and a retracting mechanism106that stops the sheets E and F, which is stopped to be conveyed in the conveying path82, in a position away from the fixing device17to retract the sheets E and F from heat of the fixing device17, the retracting mechanism106being provided in the conveying path82of the automatic double-sided printing device81.

REFERENCES:
patent: 2003/0108359 (2003-06-01), Chung
patent: 2007/0041036 (2007-02-01), Nakayama
patent: 2003-323019 (2003-11-01), None
patent: 2005208401 (2005-08-01), None

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