Automatic document transportation device

Details Automatic document transportation device Automatic document transportation device

2008-01-29

2008-01-29

Nguyen, Anthony H. (Department: 2854)

Electrophotography

Document handling

Original

C399S370000

Reexamination Certificate

active

11023250

ABSTRACT:
An automatic document transportation device includes a document tray, a document discharge tray, a transportation path, a document feed roller, a separating pad, transportation rollers, a Charge Coupled Device (CCD) scanning unit, a Contact Image Sensor (CIS) scanning unit and document discharge rollers. The document tray and the document discharge tray are provided vertically in two stages. The transportation path is formed in the sideways letter-U shape from the document tray to the document discharge tray. The document feed roller and the separating pad are provided in proximity to an inlet of the transportation path, and separate original documents by nipping the original documents in a thickness direction. The transportation rollers nip and transport the original document. The CCD scanning unit is provided directly downstream of a U-turn part of the transportation path and scans a first side of the transported original document. The CIS scanning unit is provided at downstream of the CCD scanning unit and scans a second side of the original document. The document discharge rollers nip and discharged the scanned original document. In a lateral cross-section of the automatic document transportation device, the CIS scanning unit is provided between and below the separating pad and the transportation roller provided directly downstream of the separating pad, and between the CCD scanning unit and the document discharge rollers.

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