Sheet feeder

Details Sheet feeder Sheet feeder

2005-07-19

2005-07-19

Walsh, Donald P. (Department: 3653)

Sheet feeding or delivering

Feeding

Separators

Reexamination Certificate

active

06918583

ABSTRACT:
A sheet feeder includes a sheet mounting plate, pick-up roller, drive motor and transmission device to prevent an excessive load from being applied to a pick-up roller when no sheets are mounted on a sheet mounting plate. When the sheets on the sheet mounting plate run out, a sheet detecting actuator of the sheet feeder fits into an opening formed on the sheet mounting plate. Accordingly, a protrusion of a drive actuator slides along a groove formed on the sheet detecting actuator, which causes the drive actuator and a drive interrupting boss to move. With this structure, transmission of drive force to the pick-up roller is interrupted.

REFERENCES:
patent: 5228673 (1993-07-01), Osonoe
patent: 6019362 (2000-02-01), Yazawa
patent: 6352256 (2002-03-01), Hsieh
patent: 6540220 (2003-04-01), Kuo et al.
patent: 6672581 (2004-01-01), Lee et al.
patent: A 1-291965 (1989-11-01), None

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