Paper carrying apparatus and image forming apparatus having...

Details Paper carrying apparatus and image forming apparatus having... Paper carrying apparatus and image forming apparatus having...

2011-01-18

2011-01-18

Karmis, Stefanos (Department: 3653)

Sheet feeding or delivering

Feeding

By means to convey sheet

C271S270000, C271S272000

Reexamination Certificate

active

07871074

ABSTRACT:
The paper carrying apparatus includes a first paper carrying mechanism (first carrying mechanism), a second paper carrying mechanism (second carrying mechanism) provided on the downstream of the first carrying mechanism in a carrying direction, an electric motor that drives the first carrying mechanism, a stepping motor that drives the second carrying mechanism, and an acceleration sensor that is a vibration detecting mechanism detecting vibration generated in the rotation shaft of the stepping motor. When the first carrying mechanism and the second carrying mechanism concurrently carry the same paper sheet, the electric motor is controlled in driving velocity based on information of vibration detected by the acceleration sensor at the timing of the rear end of the carried paper sheet passing the first paper carrying mechanism.

REFERENCES:
patent: 7547016 (2009-06-01), Mizuno
patent: 2005/0050423 (2005-03-01), Yasukawa et al.
patent: 04096688 (1992-03-01), None
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patent: 2006211879 (2006-08-01), None
patent: 2006-290562 (2006-10-01), None
patent: 2006290562 (2006-10-01), None
patent: 2007127966 (2007-05-01), None

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