Stencil printer and method of stopping in place printing drum of the
printer
    1.
    发明授权
    Stencil printer and method of stopping in place printing drum of the printer 失效
    模板打印机和停止打印机的打印鼓的方法

    公开(公告)号:US6038968A

    公开(公告)日:2000-03-21

    申请号:US134545

    申请日:1998-08-17

    CPC分类号: B41L13/06 B41L13/16

    摘要: In a stencil printer, a printing drum is provided with a clamp plate for clamping an end portion of a stencil master, thereby holding the stencil master on the printing drum. A paper supply mechanism supplies printing sheets to the printing drum in synchronization with rotation of the printing drum. A first motor drives the paper supply mechanism by way of a first transmission mechanism, and a second transmission mechanism is operatively connected to the first transmission mechanism to be driven by the first motor by way of the first transmission mechanism, thereby rotating the printing drum. A phase adjustment mechanism driven by a second motor drives the second transmission mechanism with the first transmission mechanism held stopped, thereby changing the relative phases of rotation of the printing drum and sheet supply operation of the paper supply means. A drum position sensor generates a detecting signal upon detection that the printing drum comes to a reference position. The first motor is driven to rotate the printing drum and is stopped upon generation of the detecting signal. Then the second motor is driven to rotate the printing drum to the reference position.

    摘要翻译: 在模版印刷机中,印刷滚筒设置有用于夹紧模板母版的端部的夹板,从而将印版主机保持在印版滚筒上。 纸张供给机构与印刷鼓的旋转同步地向打印鼓提供印刷纸。 第一电动机通过第一传动机构驱动供纸机构,第二传动机构可操作地连接到第一传动机构,由第一传动机构由第一传动机构驱动,从而转动印版滚筒。 由第二电动机驱动的相位调节机构驱动第二传动机构,第一传动机构保持停止,从而改变印版滚筒的相对转动和供纸装置的供纸操作。 鼓位置传感器在检测到印刷鼓进入基准位置时产生检测信号。 第一马达被驱动以旋转印版滚筒,并在产生检测信号时停止。 然后驱动第二马达将印版滚筒旋转到基准位置。

    Sheet supply and transfer device for printers presumable of sheet size
for pinch rollers
    2.
    发明授权
    Sheet supply and transfer device for printers presumable of sheet size for pinch rollers 失效
    用于夹送辊的纸张尺寸的打印机供纸和传送装置

    公开(公告)号:US6089566A

    公开(公告)日:2000-07-18

    申请号:US90988

    申请日:1998-06-05

    摘要: In the device for automatically controlling the position of a pair of pinch rollers for pressing opposite side edge portions of a sheet delivered from a printing portion of a printer at a surface thereof bearing a print image according to a detection of the spacing between a pair of side fences for aligning opposite sides edges of a stack of sheets charged on a sheet supply tray, a detection error of the sheet width due to a disturbance of stack condition of the sheets or an incorrect contact of the side fence to the side edge of the stack of sheets is automatically corrected by the spacing between the pair of side fences being compared with the width of sheets of regular sizes, while the pinch rollers being positioned by assuming that the sheets are of one of the regular sizes when the difference of the comparison is within a predetermined numerical range.

    摘要翻译: 在用于自动控制一对夹送辊的位置的装置中,用于按照检测到一对打印辊之间的间隔来检测从打印机的打印部分的打印部分的表面承载打印图像的相对侧边缘部分 用于对准装载在供纸托盘上的一叠纸张的相对侧边缘的侧栅栏,由于纸张的堆叠条件的干扰导致的纸张宽度的检测误差或侧挡板与侧栅栏的侧边缘的不正确接触 通过将一对侧围栏之间的间隔与规则尺寸的片材的宽度进行比较来自动校正一叠片材,同时通过假定片材是比较的差异之一时,片材是正常尺寸之一来定位夹送辊 在预定的数值范围内。

    Stencil printer
    3.
    发明授权
    Stencil printer 失效
    模板打印机

    公开(公告)号:US5970869A

    公开(公告)日:1999-10-26

    申请号:US106837

    申请日:1998-06-30

    IPC分类号: B41L13/14 B41L13/06

    CPC分类号: B41L13/06

    摘要: In a stencil printer, a first conveyor portion conveys a stencil master toward a printing drum and includes a rotatable platen roller which rotates to convey the stencil master pinched between the platen roller and a thermal head and associates with the thermal head to thermally make a perforating image on the stencil master. A second conveyor portion which is disposed between the first conveyor portion and the printing drum and conveys the stencil master toward the printing drum. When making the perforating image on the stencil master, the first conveyor portion operates at a first speed with the second conveyor portion stopped or operated at a low speed after the leading end of the stencil master is delivered to the second conveyor portion. When conveying the leading end of the stencil master, on which the perforating image has been made, toward a master clamping mechanism disposed on a generatrix of the printing drum, the second conveyor portion operates at a second speed lower than the first speed with the first conveyor section stopped.

    摘要翻译: 在模板印刷机中,第一传送部分将印版主机传送到印版滚筒并且包括可旋转的压纸辊,其旋转以传送夹在压纸辊和热敏头之间的模版母版,并与热敏头相关联以热成型 形象在模具大师。 第二传送器部分,设置在第一传送部分和印刷滚筒之间,并将印版主机传送到印刷滚筒。 当在模版母版上制作穿孔图像时,第一输送部分以第一速度操作,在模版母版的前端被输送到第二输送器部分之后,第二输送部分以低速停止或操作。 当将已经制成穿孔图像的模版母版的前端传送到设置在印版滚筒的母线上的主夹紧机构时,第二传送器部分以比第一速度低的第二速度操作,第一 输送机段停止。