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    • 9. 发明公开
    • Vacuum document feeder
    • Vakuumdokumentenzuführung。
    • EP0038522A1
    • 1981-10-28
    • EP81102869.5
    • 1981-04-15
    • EASTMAN KODAK COMPANY (a New Jersey corporation)
    • Ahern, Douglas KingCleaveland, Edwin Elisha, III
    • G03B27/64B65H17/32
    • G03B27/6257B65H5/224B65H2406/323G03B27/64
    • A vacuum document feeder which transports a document page (D) in juxtaposition to an exposure platen (12) of a reproduction apparatus where such page is illuminated for copying. The feeder includes a vacuum plenum (16) having a wall (18) formed with a plurality of spaced ports (22) overlying the exposure platen. A ported transport belt (32,34) is moved in contact with the plenum wall (18) to feed a document page to the platen for copying. The moving belt (32, 34) is positioned on the plenum wall (18) so that the belt ports (36) are maintained in spaced relation to the wall ports (22). Further, the wall ports (22) and the belt ports (36) are fluidically interconnected by a plurality of shallow concave grooves (22') formed in the plenum wall (18) so that vacuum within the plenum (16) is effective to tack a document page to the moving belt (32, 34) for movement to the exposure platen. This structural arrangement prevents light trapping by the wall ports during illumination.
    • 一个将文档页面(D)并列传送到这样的页面被照亮以用于复制的再现设备的曝光压板(12)的真空文件馈送器。 进料器包括具有壁(18)的真空室(16),所述壁(18)形成有覆盖在曝光压板上的多个间隔开的端口(22)。 便携式传送带(32,34)被移动以与集气室壁(18)接触,以将文件页面馈送到压板以进行复印。 移动带(32,34)定位在增压壁(18)上,使得带端口(36)保持与壁端口(22)间隔开。 此外,壁端口(22)和带端口(36)通过形成在通风壁(18)中的多个浅凹槽(22分钟)流体地互连,使得增压室(16)内的真空有效地粘合 到移动带(32,34)的文档页面,用于移动到曝光台。 这种结构布置防止在照明期间壁壁的光捕获。