Dual scanning electronic reprographic document handler
AssigneeXerox Corporation
InventorJoseph J. Ferrara
Life of this patent
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Abstract
An automatic document handler includes a compact document handling system capable of automatically feeding cut sheet documents and computer form documents to a pair of scanner arrays arranged on opposite sides of a curvilinear document transport path. The document handling system includes a constant velocity transport comprising at least a roller pair located along a curved portion of the curvilinear transport path to eliminate interference between a sliding scanner array and document feed rollers. The document handler scans originals without transporting them over the platen and the platen cover serves as an input tray for computer form original documents.
Claims21
An automatic document handler for a reprographic device capable of feeding a plurality of different sizes and types of original documents comprising:
- a platen for photocopying book-like original documents;
- a platen cover pivotably engageable with said platen and movable between an open position and a closed position;
- an off-platen scanner capable of simultaneously scanning both sides of an original document independent of the position of the platen cover;
- and
- a dual mode document handler for feeding cut sheets in a first mode and one of computer form paper, irregular weighted original documents and irregularly sized original documents in a second mode;
- said dual mode document handler having a first input tray for feeding said cut sheet documents in said first mode to said off-platen scanner and an output tray for receiving said cut sheet documents discharged from said off-platen scanner, said dual mode document handler also including an inlet for feeding original documents in said second mode to said off-platen scanner.
An automatic document handler comprising a document handling system capable of automatically feeding at least one of cut sheet documents and computer form documents to a pair of scanner arrays arranged on opposite sides of a curvilinear document transport path, said document handling system including a constant velocity transport comprising at least a selected roller pair located along a curved portion of said curvilinear transport path, wherein a selected one of said scanner arrays is movable past the selected roller pair and across the platen to scan book-like documents, and wherein the selected scanner array moves without interference with the selected roller pair because the selected roller pair is located along the curved portion of the curvilinear path.
An automatic document handler comprising a scanner module having a platen, a document handler stationarily mounted on said scanner module, and a platen cover separate from and adjacent said document handler and pivotably mounted to said scanner module, said platen cover including an input tray for feeding one of computer form documents and irregular weight documents to said document handler.
Dependencies are inferred from the claim text.