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    • 5. 发明授权
    • Printing press
    • 印刷机
    • US08696108B2
    • 2014-04-15
    • US13322230
    • 2010-05-21
    • Hideaki SakuraiShoichi AokiMakoto KajiNorifumi Tasaka
    • Hideaki SakuraiShoichi AokiMakoto KajiNorifumi Tasaka
    • B41J2/01
    • B41J3/546B41F13/02B41F19/007
    • In a printing press, it is configured such that a newspaper web offset printing press is composed by a feeder device, a printing device, a guiding device, a turn bar device, and a folding unit; as a guiding device, there are provided an upstream side guide roller and a downstream side guide roller which are disposed with a predetermined interval along a transportation direction of a web for guiding transportation of the web; and there is disposed an ink-jet printer for performing digital printing on the web guided between the guide rollers. By setting diameters of the upstream side guide roller and the downstream side guide roller to different values, vibration of the print medium which is transported while being guided by the guide rollers is suppressed, and the print quality is thereby improved.
    • 在印刷机中,由纸送纸装置,印刷装置,引导装置,转杆装置和折叠单元构成报纸卷筒纸胶版印刷机。 作为引导装置,设置有沿着幅材的传送方向以预定间隔布置的上游侧引导辊和下游侧引导辊,用于引导幅材的传送; 并且设置有用于在引导辊之间引导的幅材上进行数字印刷的喷墨打印机。 通过将上游侧引导辊和下游侧引导辊的直径设定为不同的值,可以抑制在被引导辊引导的同时传送的打印介质的振动,从而提高打印质量。