Image forming apparatus and conveyance device

Details Image forming apparatus and conveyance device Image forming apparatus and conveyance device

2011-03-22

2011-03-22

Colilla, Daniel J (Department: 2854)

Electrophotography

Document handling

Copy

C399S395000, C271S242000

Reexamination Certificate

active

07912417

ABSTRACT:
An image forming apparatus includes: an image forming part; a first conveyance roller that conveys a recording medium to the image forming part; a forward/reverse-rotatable second conveyance roller, located between the first conveyance roller and the image forming part in a conveyance direction of the recording medium; a contact member, in contact with the second conveyance roller, that forms a nip between the second conveyance roller and the contact member; a first conveyance roller driver that rotate-drives the first conveyance roller in the same direction as the conveyance direction of the recording medium; and a drive transmission mechanism that performs drive transmission from the first conveyance roller driver to the second conveyance roller so as to start rotation of the second conveyance roller in a reverse direction of the conveyance direction of the recording medium before a lead edge of the recording medium arrives at the nip.

REFERENCES:
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patent: 7410164 (2008-08-01), Koide et al.
patent: 2004/0094891 (2004-05-01), Trovinger et al.
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patent: 2005-239347 (2005-09-01), None
patent: 2005-343645 (2005-12-01), None

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