公开(公告)号：US20040250716A1

公开(公告)日：2004-12-16

申请号：US10765137

申请日：2004-01-28

申请人： Tohoku Ricoh Co., Ltd.

发明人： Takayuki Onodera ,  Daisuke Hasebe ,  Kazuyoshi Kobayashi

IPC分类号： B41L013/04

CPC分类号： B41L13/04

摘要： A stencil printer of the present invention includes a print drum implemented as a porous hollow cylinder rotatably supported and configured such that a perforated stencil is wrapped therearound. A pressing device forms a pressing portion when pressed against the print drum. A feeding device feeds a sheet toward the pressing portion. A registration roller pair conveys the sheet toward said pressing portion at preselected timing. One roller of the registration roller pair expected to contact, when the sheet carrying an image on its one surface is reversed and again fed by said feeding device, the one surface first is provided with a highly oil-repellent surface configuration.

摘要翻译： 本发明的模版印刷机包括一个实现为多孔中空圆筒的印刷滚筒，可旋转地支撑并构造成使得穿孔模板被包裹在其周围。 按压装置在按压打印鼓时形成按压部。 送料装置将片材朝向按压部分进给。 定位辊对在预选的时刻将片材朝向所述按压部分传送。 当预定接触的定位辊对中的一个辊子，当在其一个表面上承载图像的纸张被反转并且由所述进给装置再次进给时，该一个表面首先具有高拒油表面形状。

公开(公告)号：US20030094107A1

公开(公告)日：2003-05-22

申请号：US10230120

申请日：2002-08-29

申请人： Tohoku Ricoh Co., Ltd.

发明人： Hideki Asai ,  Takayuki Onodera ,  Masayuki Abe

IPC分类号： B41L013/00

CPC分类号： B65H9/006 ,  B65H3/06 ,  B65H7/06 ,  B65H2220/02 ,  B65H2301/533 ,  B65H2404/7231 ,  B65H2511/20 ,  B65H2511/51 ,  B65H2511/514 ,  B65H2511/518 ,  B65H2513/51 ,  B65H2513/514 ,  B65H2551/20 ,  B65H2701/1311 ,  B65H2220/01 ,  B65H2220/03 ,  B65H2220/09

摘要： A sheet feeding device capable of again feeding, when failed to feed a sheet, the sheet by retry control is disclosed. The sheet feeding device includes a sheet tray loaded with a stack of sheets and a feed roller for sequentially feeding the sheets from the sheet tray one by one. A leading edge sensor is positioned downstream of the feed roller in the direction of sheet feed for sensing the leading edge of the sheet fed from the sheet tray. A registration roller pair is positioned downstream of the leading edge sensor in the direction of sheet feed for conveying the sheet toward an image transfer station at a preselected timing. When the retry control is to be executed, control means varies the content of control in accordance with information output from the leading edge sensor.

摘要翻译： 公开了一种片材进给装置，其能够在不能通过重试控制来进给片材时再次进给。 片材进给装置包括装载有一叠片材的片材盘和用于从片材盘依次供给片材的进给辊。 前缘传感器位于供纸辊的下游，在纸张供给方向上，用于感测从纸盘进纸的纸张前缘。 定位辊对位于前缘传感器的下游，在片材进给方向上，以预选的时间将片材输送到图像转印站。 当执行重试控制时，控制装置根据从前沿传感器输出的信息来改变控制的内容。