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    • 4. 发明授权
    • Electrostatographic printer and method
    • 静电打印机和方法
    • US6052551A
    • 2000-04-18
    • US49843
    • 1998-03-27
    • Etienne Marie De CockPeter EelenWim Jacques Josephine Michielsen
    • Etienne Marie De CockPeter EelenWim Jacques Josephine Michielsen
    • G03G15/00G03G15/16G03G15/20G03G21/00G03G21/20
    • G03G15/161G03G2215/1695
    • The invention is an electrostatographic printer and a method of printing with such a printer. The printer includes a transfer member that is driven along a continuous path, and a toner image depositor that deposits a toner image in powder form on the transfer member. A substrate is fed into contact with the transfer member, and the toner image on the transfer member is heated in advance of the transfer; the transfer member is cooled following the image transfer to a temperature below the glass transition temperature T.sub.g of the toner; then further toner images may be deposited on the transfer member. A controlling pressure roller is positioned in opposition to the transfer member to form a transfer nip, through which the substrate passes, the substrate wrapping partially around the pressure roller both in advance of and following the transfer nip. The temperature of the controlling pressure roller can be governed to control the temperature of the substrate as it passes through the nip, thus attaining improved image transfer.
    • 本发明是一种静电打印机和用这种打印机进行打印的方法。 打印机包括沿着连续路径驱动的转印部件和将粉末形式的调色剂图像沉积在转印部件上的调色剂图像沉积器。 馈送基板与转印部件接触,并且转印部件上的调色剂图像在转印之前被加热; 转印部件在图像转印后被冷却至低于调色剂的玻璃化转变温度Tg的温度; 则可以将另外的调色剂图像沉积在转印部件上。 控制压力辊定位成与转印部件相对,以形成转印辊隙,衬底通过该转印辊隙,衬底在转印辊隙之前和之后均部分缠绕在加压辊周围。 可以控制控制压力辊的温度来控制衬底通过辊隙的温度,从而获得改进的图像转印。
    • 7. 发明授权
    • Device and method fixing and glossing toner images
    • 用于固定和调色墨粉图像的装置和方法
    • US5970301A
    • 1999-10-19
    • US195741
    • 1998-11-19
    • Etienne Marie De Cock
    • Etienne Marie De Cock
    • G03G9/08G03G15/20
    • G03G15/2064G03G15/2039G03G2215/00426G03G2215/00805G03G2215/2009G03G2215/2032
    • A substrate carrying an unfixed toner image is fed through a contact zone which extends continuously from an entrance to an exit (18; 78). The zone is defined by an endless surface such as a first belt and a reaction surface such as a second belt in face-to-face pressure contact therewith. The first belt adjacent the entrance is heated to a temperature sufficient to reduce the viscosity of the toner to less than 50 Pa s. The first belt is forcibly cooled intermediate the entrance and the exit to a temperature below the glass transition point T.sub.g of the toner. Thereby un-fixed toner images can be fixed to the substrate and provided with a desirable level of gloss in one single device, while widening the range of operating conditions without risk of offset occurring.
    • 携带未定影调色剂图像的基板通过从入口到出口(18; 78)连续延伸的接触区域进给。 该区域由诸如第一带和诸如与其面对面的压力接触的第二带的反应表面的无端表面限定。 将入口附近的第一带加热到足以将调色剂的粘度降至小于50Pa s的温度。 第一带在入口和出口的中间被强制冷却到低于调色剂的玻璃化转变点Tg的温度。 因此,未固定的调色剂图像可以固定到基板上,并且在一个单一装置中提供期望的光泽水平,同时扩大操作条件的范围而没有发生偏移的风险。