Sheet feeding or delivering – Feeding – Multiple supplies
Patent
1997-10-16
1999-12-21
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
Multiple supplies
271 908, B65H 344, B65H 526
Patent
active
060038551
ABSTRACT:
A multiple media sheet stack selection mechanism for selectively presenting multiple media sheet stacks to the same sheet separation and feed mechanism. The multiple media stack selection mechanism includes a primary sheet holder and at least one secondary stack holder. In the first embodiment, the multiple media stack selection mechanism includes a rotatable feed arm mechanism for holding the second paper stack and for positioning the second paper stack for picking and advancement. In the second embodiment, the multiple media sheet stack selection mechanism includes a paper stack gripping device for holding a second paper stack and for positioning the second paper stack for picking and advancement. In both the first and second embodiment, the paper stacks are positioned at a near vertical angle. The near vertical angle provides additional advantages in that the gravity force assists in constantly urging the sheets toward the feed zone, and results in a greater feed reliability. In the third embodiment, the multiple stack selector includes two tray mechanisms that selectively position two separate stacks of paper to the same picking and advancement device by the use of a dual cam and associated cam follower arrangement.
REFERENCES:
patent: 3989236 (1976-11-01), Komori et al.
patent: 4991830 (1991-02-01), Yamanaka
patent: 5391009 (1995-02-01), Stodder
Beaufort Richard F.
Yergenson Robin P.
Hewlett-Pakcard Company
Skaggs H. Grant
Wade Matthew L.
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