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(11) | EP 0 762 227 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Sheet feeding apparatus |
(57) Described herein is a sheet feeding apparatus (70) in which a trailing vacuum plenum
(84,92) moves in unison with a guide (78) which engages an edge of a stack (32) to
align the sheets thereof. The trailing edge vacuum plenum (84,92) is positioned over
the stack (32) to acquire a trailing portion of a sheet. The sheet feeding apparatus
(70) includes a leading vacuum plenum (104,106) positioned over the stack (32) to
acquire a leading portion of the sheet. A sheet transport (72) advances the sheet
acquired by the leading vacuum plenum (104,106) from the stack (32). Fluffer jets
(94,96) are employed to inject air between the leading portion and trailing portion
of the sheet to assist the sheet transport (72). |