Orbiting nip sheet output with faceup or facedown stacking and integral gate
AssigneeXerox Corporation
InventorsDenis J. Stemmle, John F. Derrick
Life of this patent
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AssigneeXerox Corporation
InventorsDenis J. Stemmle, John F. Derrick
Estimating the term…
A plural mode system of transporting sheets in an output path of a copier or printer to a sheet stacking area, with selectable sheet inversion provided by opposing first and second sheet feeding rollers forming a sheet transporting nip engaging the leading edge of a sheet, by a relative orbital motion of the opposing rollers to progressively pivot the nip and thereby change the angular direction of motion of the leading edge of the sheet. A selection between faceup and facedown stacking of the sheets is provided by selectable orbital motion of the nip. The sheet is inverted for stacking by orbital motions pivoting the nip by greater than 90 degrees with the sheet's leading edge held in the nip, so that subsequently the leading edge of the sheet is moving in a direction substantially different from the direction of motion of the leading edge when the leading edge first entered the nip. For faceup stacking, a movable sheet deflector gate deflects sheets in the output path away from the nip, upstream of said nip, to bypass the nip, and feed those selected sheets directly from the output path into the sheet stacking station without inversion from different upstream rollers.
In an apparatus for transporting generally flimsy sheets in an output path in a first direction of motion downstream towards a sheet stacking station, for stacking the sheets, including opposing first and second sheet feeding rollers forming a sheet transporting nip for engaging the leading edge of a sheet delivered to said nip and then feeding the sheet through said nip, with means for producing a relative orbital motion of said opposing rollers for pivoting the feeding angle of said nip;
In a method of transporting sheets in an output path to a downstream sheet stacking area with opposing first and second sheet feeding rollers forming a sheet transporting nip, including engaging the leading edge of a sheet delivered to said nip while producing a relative orbital motion of said opposing rollers to pivot said nip and thereby change the angular direction of motion of the leading edge of the sheet while the sheet is in said nip;
Dependencies are inferred from the claim text.