Jam suppressing sheet feeding device and image forming...

Details Jam suppressing sheet feeding device and image forming... Jam suppressing sheet feeding device and image forming...

2008-04-08

2008-04-08

Mackey, Patrick (Department: 3653)

Sheet feeding or delivering

Feeding

Separator and conveyor

C271S122000, C271S242000, C271S010120

Reexamination Certificate

active

10894244

ABSTRACT:
A sheet feeding apparatus includes a sheet tray, a pickup roller, a feed roller, a driving motor to drive the feed roller via a feed clutch, and a reverse roller connected to a reverse shaft driven by the driving motor via a torque limiter. The feed clutch is turned OFF when a trailing edge of a sheet passes through a nip formed between the feed and reverse rollers so as to disconnect the driving motor in order to enable the feed roller to freely rotate. The rotation of the reverse shaft is transmitted to the reverse roller by the operation of the torque limiter so as to enable the reverse roller to rotate and return the next sheet nipped by the reverse and feed rollers in a counter sheet feeding direction.

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patent: 6263186 (2001-07-01), Okamoto et al.
patent: 2005/0073088 (2005-04-01), Watase
patent: 10-218403 (1988-08-01), None
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U.S. Appl. No. 10/347,633, filed Jan. 22, 2003, Watase.
U.S. Appl. No. 10/894,244, filed Nov. 26, 2003, Watase.
U.S. Appl. No. 11/510,681, filed Aug. 28, 2006, Watase et al.
U.S. Appl. No. 11/517,377, filed Sep. 8, 2006, Sagawa et al.

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