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    • 1. 发明申请
    • Inkjet image-forming apparatus and method for printing
    • 喷墨成像设备和印刷方法
    • US20100085395A1
    • 2010-04-08
    • US12588110
    • 2009-10-05
    • Tomohiko ShimodaYukihiro MaedaKenji Oshima
    • Tomohiko ShimodaYukihiro MaedaKenji Oshima
    • B41J29/38
    • B41J2/175B41J2/04528B41J2/04553B41J2/04581B41J2/04588B41J2/04595B41J2/04596
    • An image forming apparatus including: a print-job controller configured to receive a print job and control a printing operation based on the received print job; an ink-ejection driver configured to output a driving signal on the basis of the print job; an ink ejector configured to eject ink onto a paper sheet on the basis of the driving signal outputted by the ink-ejection driver; and an ink-temperature measuring unit configured to measure an ink temperature. When the ink temperature measured by the ink-temperature measuring unit is equal to or higher than a first reference temperature, the ink-ejection driver outputs a driving signal of a first voltage. When the ink temperature measured by the ink-temperature measuring unit is lower than the first reference temperature and is equal to or higher than a second reference temperature that is lower than the first reference temperature, the print-job controller performs the printing operation as long as predetermined conditions are satisfied for suppressing lowering of print quality possibly caused by ink ejection based on a driving signal of a second voltage that is higher than the first voltage and the ink-ejection driver outputs the driving signal of the second voltage while the printing operation is being performed.
    • 一种图像形成装置,包括:打印作业控制器,被配置为接收打印作业并基于所接收的打印作业来控制打印操作; 喷墨驱动器,被配置为基于所述打印作业来输出驱动信号; 墨水喷射器,被配置为基于由喷墨驱动器输出的驱动信号将墨水喷射到纸张上; 以及墨水温度测量单元,其被配置为测量墨水温度。 当由油墨温度测量单元测量的油墨温度等于或高于第一参考温度时,喷墨驱动器输出第一电压的驱动信号。 当由油墨温度测量单元测量的油墨温度低于第一参考温度并且等于或高于低于第一参考温度的第二参考温度时,打印作业控制器执行打印操作 由于根据高于第一电压的第二电压的驱动信号来抑制可能由喷墨引起的打印质量的降低的预定条件,并且喷墨驱动器在打印操作期间输出第二电压的驱动信号 正在执行。
    • 2. 发明授权
    • Inkjet image-forming apparatus and method for printing
    • 喷墨成像设备和印刷方法
    • US08123316B2
    • 2012-02-28
    • US12588110
    • 2009-10-05
    • Tomohiko ShimodaYukihiro MaedaKenji Oshima
    • Tomohiko ShimodaYukihiro MaedaKenji Oshima
    • B41J29/38
    • B41J2/175B41J2/04528B41J2/04553B41J2/04581B41J2/04588B41J2/04595B41J2/04596
    • An image forming apparatus including: a print-job controller configured to receive a print job and control a printing operation based on the received print job; an ink-ejection driver configured to output a driving signal on the basis of the print job; an ink ejector configured to eject ink onto a paper sheet on the basis of the driving signal outputted by the ink-ejection driver; and an ink-temperature measuring unit configured to measure an ink temperature. When the ink temperature measured by the ink-temperature measuring unit is equal to or higher than a first reference temperature, the ink-ejection driver outputs a driving signal of a first voltage. When the ink temperature measured by the ink-temperature measuring unit is lower than the first reference temperature and is equal to or higher than a second reference temperature that is lower than the first reference temperature, the print-job controller performs the printing operation as long as predetermined conditions are satisfied for suppressing lowering of print quality possibly caused by ink ejection based on a driving signal of a second voltage that is higher than the first voltage and the ink-ejection driver outputs the driving signal of the second voltage while the printing operation is being performed.
    • 一种图像形成装置,包括:打印作业控制器,被配置为接收打印作业并基于所接收的打印作业来控制打印操作; 喷墨驱动器,被配置为基于所述打印作业来输出驱动信号; 墨水喷射器,被配置为基于由喷墨驱动器输出的驱动信号将墨水喷射到纸张上; 以及墨水温度测量单元,其被配置为测量墨水温度。 当由油墨温度测量单元测量的油墨温度等于或高于第一参考温度时,喷墨驱动器输出第一电压的驱动信号。 当由油墨温度测量单元测量的油墨温度低于第一参考温度并且等于或高于低于第一参考温度的第二参考温度时,打印作业控制器执行打印操作 由于根据高于第一电压的第二电压的驱动信号来抑制可能由喷墨引起的打印质量的降低的预定条件,并且喷墨驱动器在打印操作期间输出第二电压的驱动信号 正在执行。
    • 6. 发明授权
    • Duplex printing apparatus with variable speed section
    • 具有变速部分的双面打印设备
    • US08503922B2
    • 2013-08-06
    • US12452791
    • 2008-07-16
    • Yukihiro MaedaMasashi Hara
    • Yukihiro MaedaMasashi Hara
    • G03G15/00G03G15/20B65H5/34
    • B41J3/60B41J13/0009B41J13/0045G03G15/234
    • A printer is operable for image formation onto a sheet of a sheet width Lp, with a sheet spacing Lg and a printing transfer speed Vg, a constant speed transferrer makes sheet transfer at the printing transfer speed Vg from a register via the printer to a speed change position, a variable speed transferrer makes sheet transfer from the speed change position to the register, and a transfer controller controls sheet transfer speeds, the variable speed transferrer having sections for sheet transfer, including deceleration and acceleration sections for sheet reversal at the sheet reversing path, and a constant speed section for transfer at a constant transfer speed Vr, the transfer controller determining a circulating sheet number N, executing a calculation of transfer speed Vr employing sheet width Lp, sheet spacing Lg, printing transfer speed Vg, and accelerations, to enable sheet transfer for circulation within a time interval of N×(Lp+Lg)/Vg.
    • 打印机可操作用于在片材宽度Lp的片材上形成图像,片材间距Lg和印刷传送速度Vg,恒定速度转印器使印刷传送速度Vg从记录器经由打印机转印到速度 变速传送器将片材从变速位置传送到寄存器,转印控制器控制纸张传送速度,变速传送器具有用于纸张传送的部分,包括用于纸张反转的纸张反转的减速和加速部分 路径和用于以恒定传送速度Vr传送的恒定速度部分,传送控制器确定循环片材编号N,执行片材宽度Lp,片材间距Lg,印刷传送速度Vg和加速度的传送速度Vr的计算, 以便在N×(Lp + Lg)/ Vg的时间间隔内进行片材转印。
    • 8. 发明授权
    • Printing apparatus having discharge speed control
    • 具有放电速度控制的打印设备
    • US08141872B2
    • 2012-03-27
    • US12320163
    • 2009-01-21
    • Yukihiro MaedaMasashi Hara
    • Yukihiro MaedaMasashi Hara
    • B65H5/34
    • B65H29/125B65H2220/09B65H2404/14B65H2511/514B65H2513/108B65H2801/06B65H2220/01B65H2220/02
    • A printing apparatus comprises: a first paper discharge roller unit 411 and a second paper discharge roller unit 412 which are configured to transport a print sheet to a discharge port; a upper transportation roller unit 401 configured to transport the print sheet to the first paper discharge roller unit 411; a drive control unit 302 configured to determine a transportation speed; an upper side paper discharge drive unit 270 configured to drive both the paper discharge roller units at the determined transportation speed after starting transportation of the print sheet until the print sheet leaves the upper transportation roller unit 401, and drive both the paper discharge roller units at a discharge speed which is determined independently from the transportation speed until the print sheet leaves the second paper discharge roller unit 412.
    • 打印装置包括:第一出纸辊单元411和第二排纸辊单元412,其构造成将打印片材输送到排出口; 被配置为将打印片材输送到第一排纸辊单元411的上输送辊单元401; 配置为确定运送速度的驱动控制单元302; 上侧排纸驱动单元270,其被构造成在开始输送打印片材直到打印片材离开上传送辊单元401之后以确定的传送速度驱动排纸辊单元,并将两个排纸辊单元驱动 独立于输送速度确定直到打印片材离开第二排纸辊单元412的排出速度。