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    • 2. 发明授权
    • Post-fusing sheet conditioning apparatus
    • 后定影片调理装置
    • US6052553A
    • 2000-04-18
    • US320910
    • 1999-05-27
    • Thomas AcquavivaWilliam Brant
    • Thomas AcquavivaWilliam Brant
    • G03G15/00G03G15/20
    • G03G15/6573G03G2215/0067
    • A post-fusing apparatus is provided in an electrostatographic reproduction machine for adding a controlled amount of moisture to a side of a fused toner image carrying copy sheet to control curl. The sheet conditioning apparatus includes a moisturizing agent supply and splitting assembly, including a supply source containing moisturizing agent and a plurality of rotatable metering rollers forming at least first and second moisture splitting nips, for splitting a layer of supplied moisturizing agent, and forming a thin film of moisture. The sheet conditioning apparatus also includes a rotatable moisture applying roller forming a moisture splitting and receiving nip with the moisture agent supply and splitting assembly, for receiving the thin film of moisture therefrom. The rotatable moisture applying roller also forms a moisture applying nip with a side of the fused toner image carrying copy sheet for applying a desired amount of moisture from the received thin film of moisture thereon onto the fused toner image carrying copy sheet so as to control curl therein.Importantly, the sheet conditioning apparatus includes a control system, including nip pressure adjustment assemblies and a programmable controller, for adjusting nip pressure in the moisture receiving nip and the moisture applying nip to control the desired amount of moisture being applied onto the fused toner image copy sheet. The programmable controller also includes an equilibrium moisture content value (M.sub.f) for copy sheets that are same as the fused toner image carrying copy sheet, and the nip pressure adjustment assemblies are adjusted and controlled such that the desired amount of moisture being applied is about 1.5% greater than the equilibrium moisture content value (M.sub.f).
    • 一种后融合装置设置在静电复原机中,用于将受控量的湿气添加到承载着卷纸的熔融调色剂图像的一侧以控制卷曲。 片材调节装置包括保湿剂供应和分离组件,其包括含有保湿剂的供应源和形成至少第一和第二湿分解夹头的多个可旋转计量辊,用于分离供应的保湿剂层,并形成薄的 水分膜。 片材调节装置还包括一个可旋转的水分施加辊,其与防潮剂供应和分离组件形成水分分离和接收辊隙,用于从其中接收水分薄膜。 可旋转的水分施加辊还形成一个水分施加辊隙,其中熔融的调色剂图像承载复印纸的一侧,用于将所需量的水分从接收到的湿气薄膜施加到压印的调色剂图像承载复印纸上,从而控制卷曲 其中。 重要的是,片材调节装置包括一个控制系统,包括夹持压力调节组件和可编程控制器,用于调节湿气接收压区和湿气施加辊隙中的压区压力,以控制施加到熔融调色剂图像副本上的期望量的水分 片。 可编程控制器还包括与复印纸相同的复印纸的平衡含水量值(Mf),并且调节和控制辊隙压力调节组件,使得施加的所需水分量为约1.5 %大于平衡含水量(Mf)。
    • 3. 发明授权
    • High speed printed sheet stacking and registration system
    • 高速印刷纸张堆放和注册系统
    • US5671920A
    • 1997-09-30
    • US457938
    • 1995-06-01
    • Thomas AcquavivaWilliam BrantRandolph Cruz
    • Thomas AcquavivaWilliam BrantRandolph Cruz
    • G03G15/00B65H29/32B65H31/36B65H29/54
    • B65H29/32B65H31/36B65H2406/32231B65H2406/323B65H2801/06
    • A sheet stacking and registration system particularly suited for high speed sequentially stacking of the flimsy printed sheets output of a high speed reproduction apparatus in a sheet stacking area, with a stacking registration position; with a vacuum belt sheet transport system acquiring only a limited lead edge area of the sheets and transporting them over the stacking area with non-slip sheet feeding towards the registration position; and an integral system peeling the lead edges of the sheets off of the vacuum transport and guiding them downwardly and towards the lead edge registration position while reducing but partially maintaining the sheet's vacuum acquisition, and applying a normal force, preferably with a roller pressing down the lead edges of the peeled off sheet against the previously stacked sheets adjacent the registration position, to frictionally slow the sheet as it approaches the registration position, and also holding down the sheet after it reaches the stacking position. The sheet transport may have spaced belt flights with spaced patterns of vacuum apertures spaced between substantially unapertured areas along the belts, and a synchronized belt drive to synchronously engage the lead edge areas of the incoming sheets. An upstream natural arcuate inversion path with a side registration system may be integrated therewith.
    • 一种纸张堆垛和登记系统,特别适用于高速再现设备的薄片印刷纸张输出在片材堆垛区域中的高速顺序堆叠,具有堆垛定位位置; 真空带片材输送系统仅获取片材的有限的前缘区域并将其运送到堆叠区域上,并将防滑片材输送到配准位置; 以及一体的系统,从真空输送器剥离片材的引线边缘并将它们向下并朝向引线边缘对准位置引导,同时减少但部分地保持片材的真空获取,并且施加法向力,优选地用辊压下 剥离片的引导边缘抵靠在对位位置附近的先前堆叠的片材上,以使得片材在接近对准位置时摩擦地减慢,并且在片材到达堆叠位置之后也将其压下。 纸张传送可以具有间隔开的带平面,具有在沿着皮带的基本上未被挤压的区域之间间隔开的间隔开的真空孔的图案,以及同步带驱动器,以同步地接合进入的片材的前缘区域。 具有侧面对准系统的上游自然弧形反转路径可以与其一体化。