Media sheet pick and feed system

Details Media sheet pick and feed system Media sheet pick and feed system

1995-12-20

1996-08-20

Bollinger, David H.

Sheet feeding or delivering

Feeding

Separators

271116, 271117, B65H 306

Patent

active

055471811

ABSTRACT:
A media sheet pick and feed system includes a pick roller shaft that is mounted for rotation and a media sheet tray which supports a stack of media sheets on a support surface. The support surface is separated from the pick roller shaft by a fixed distance during pick operations. An arm structure is coupled to and extends from the pick roller shaft and includes a pick roller that is geared to the pick roller shaft. A drive motor having first and second directions of rotation is couplable via a clutch to the pick roller shaft. During a driven state, the drive motor, through the clutch, causes the pick roller shaft to rotate and operate the pick roller. The clutch mechanism in the non-driven state is uncoupled from the pick roller shaft and enables the pick roller to free wheel while it still remains in contact with a media sheet being fed. The pick roller is never out of contact with media sheets supported by the media sheet tray.

REFERENCES:
patent: 4290593 (1981-09-01), Irvine
patent: 4337935 (1982-07-01), Sawada et al.
patent: 4925062 (1990-05-01), Tsukamoto et al.
patent: 4934686 (1990-06-01), Ono et al.
patent: 5085420 (1992-02-01), Sata

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