Sheet feeding or delivering – Feeding – Pack holders
Reexamination Certificate
2009-03-30
2011-12-13
Karmis, Stefanos (Department: 3653)
Sheet feeding or delivering
Feeding
Pack holders
Reexamination Certificate
active
08074979
ABSTRACT:
A sheet feeding tray includes a frame member, and freely upwardly swingable plural bottom plates arranged on the frame member side by side perpendicular to a sheet feeding direction. The bottom plates cooperatively support a stack of envelope recording mediums. A lifting device having plural curvature sections is provided. The plural curvature sections are respectively arranged below the bottom plates to scuff and lift the lower surface of the plural bottom plates at a section downstream of the sheet feeding direction. The plural curvature sections each include a different outline in accordance with a difference of a decreasing amount of a thickness of the stack during sheet feeding. The different outlines enable the topmost surface of the stack to be almost horizontal.
REFERENCES:
patent: 6283469 (2001-09-01), Weber
patent: 4-79832 (1992-07-01), None
patent: 5-270667 (1993-10-01), None
patent: 10-007265 (1998-01-01), None
patent: 10-035928 (1998-02-01), None
patent: 10-297771 (1998-11-01), None
patent: 2000-153926 (2000-06-01), None
patent: 3542689 (2004-04-01), None
Abstract of JP 10-035928 published Feb. 10, 1998.
Extended Search Report for corresponding European patent application No. 09250911.6 dated Sep. 14, 2011.
Harness & Dickey & Pierce P.L.C.
Karmis Stefanos
Morrison Thomas
Ricoh & Company, Ltd.
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