Sheet transport system with sheet velocity manipulation
    1.
    发明授权
    Sheet transport system with sheet velocity manipulation 失效
    片材运输系统,具有片材速度操作

    公开(公告)号:US5227854A

    公开(公告)日:1993-07-13

    申请号:US754832

    申请日:1991-09-04

    CPC分类号: G03G15/0131 G03G15/1655

    摘要: A method and apparatus for manipulating the velocity of a copy sheet in a color reprographic system creates a buckle in the copy sheet to decouple accelerations of the leading edge of the copy sheet from the portion that is in contact with the photoreceptor belt and reduces the buckle on long copy sheets for which the buckle can become large enough that the toner image on the body of the copy sheet can become disrupted by contact with stationary portions of the system. The method and apparatus also accelerates the leading edge of the copy sheet as the trailing edge disengages from the photoreceptor belt to prevent the uncontrolled trailing edge of lightweight copy sheets from contacting stationary portions of the system.

    摘要翻译: 用于操纵彩色再现系统中的复印纸的速度的方法和装置在复印纸上形成带扣,以将复印纸的前边缘的加速度与与感光带接触的部分分离,并减少扣环 在长的复印纸上,带扣可以变得足够大,使得复印纸的主体上的调色剂图像可能通过与系统的静止部分接触而中断。 当后缘与感光带脱开时,该方法和装置还加速了复印纸的前缘,以防止轻质复印纸的不受控制的后缘接触系统的静止部分。

    Sheet transport system with improved gripper bar
    2.
    发明授权
    Sheet transport system with improved gripper bar 失效
    具有改进的夹杆的片材输送系统

    公开(公告)号:US5177541A

    公开(公告)日:1993-01-05

    申请号:US755998

    申请日:1991-09-06

    IPC分类号: G03G15/00 G03G15/16

    摘要: An apparatus which advances a sheet through a transfer zone and into registration with information developed on a moving member. The sheet is advanced to a position wherein a leading portion thereof is immediately ahead of the transfer zone relative to the forward direction of movement of the moving member and a trailing portion thereof is within the transfer zone. The leading portion of the sheet forms a presentation angle of 7-10 degrees with the horizontal. The trailing portion of the sheet is advanced through the transfer zone at a first velocity and the leading edge of the sheet is advanced in a region immediately ahead of the transfer zone at a second velocity, which is less than the first velocity, so as to create a buckle in the leading portion of the sheet positioned immediately ahead of the transfer zone relative to the forward direction of movement of the moving member. The buckle functions to eliminate relative velocity between the photoconductive belt and any portion of sheet within the transfer zone so as to substantially eliminate slip between the sheet and the photoconductive belt.

    摘要翻译: 一种将片材推进通过转移区域并与移动构件上形成的信息对准的装置。 片材前进到其前导部分相对于移动构件的向前移动方向紧邻转移区域的位置,并且其后部位于转移区域内的位置。 片材的前导部分与水平面形成7-10度的呈现角度。 片材的后部以第一速度前进通过转移区,并且片材的前边缘以比第一速度小的第二速度在紧邻转印区域之前的区域中前进,以便 在相对于移动构件的向前移动方向定位在转移区域之前的片材的引导部分中产生带扣。 带扣的作用是消除感光带和转印区内片材的任何部分之间的相对速度,以便基本上消除纸和感光带之间的滑动。

    Dual mode document handling apparatus
    4.
    发明授权
    Dual mode document handling apparatus 失效
    双模式文件处理装置

    公开(公告)号:US4664509A

    公开(公告)日:1987-05-12

    申请号:US856894

    申请日:1986-04-28

    CPC分类号: G03B27/625

    摘要: A dual mode document handling apparatus in which either individual cut sheet documents or computer-form web documents are advanced to an exposure station of a reproducing machine. Successive cut sheet documents are advanced in a first direction to the exposure station. Successive incremental lengths of a computer form web document are moved to the exposure station in a second direction substantially normal to the first direction. The machine operator may select either computer-form web document feeding or cut sheet document feeding.

    摘要翻译: 一种双模式文档处理装置,其中单独的单张纸文档或计算机形式的网络文档提前到再现机的曝光站。 连续的片材文件在第一方向前进到曝光站。 计算机形式的纸张文档的连续递增长度在基本上垂直于第一方向的第二方向上移动到曝光站。 机器操作者可以选择计算机形式的纸张文件进给或切纸文件进给。

    Stalled sheet folding and flattening apparatus in an electrostatographic
machine
    5.
    发明授权
    Stalled sheet folding and flattening apparatus in an electrostatographic machine 失效
    静电放样机中的片状折叠和压平装置

    公开(公告)号:US5840003A

    公开(公告)日:1998-11-24

    申请号:US837027

    申请日:1997-04-11

    CPC分类号: G03G15/65

    摘要: A stalled sheet folding and flattening apparatus for reducing a sheet, stalled between a withdrawable and a fixed component of a cut sheet handling system of a sheet handling machine, into a shape and size suitably enabling reliable removal of the stalled sheet through even a relatively narrow gap between the withdrawable and fixed components of the sheet handling system. The stalled sheet folding and flattening apparatus includes a fixed component of the sheet handling system connected to a frame of the machine and having a first section of a sheet path; a withdrawable component of the sheet handling system mounted to the frame, and having a sheet flattening side defining a relatively narrow gap between a fixed surface within the machine and the withdrawable component, and including a second section of the sheet path adjoining the first section of the sheet path; and a sheet folding device mounted to the fixed component. The sheet folding device includes a generally U-shaped portion defining a slot and having a sheet contact surface forming a part, of an edge of the first section of the sheet path, for contacting and deflecting into a first fold, an edge of a sheet stalled across an interface between the first and the second sections of the sheet path, when the withdrawable component is being pulled out of the machine. The sheet contact surface of the U-shaped portion has a first radius of curvature defining a first concave surface for deflecting and folding the stalled sheet, and a second radius of curvature defining a second surface for guiding the folded sheet out of the slot.

    摘要翻译: 一种用于将片材处理机的切割片处理系统的可取出和固定部件之间的片材减速的片状折叠和压扁装置,形成适当的形状和尺寸,使其能够通过相对狭窄的方式可靠地移除失速的片材 纸张处理系统的抽出和固定部件之间的间隙。 停滞的折页和压平装置包括连接到机器的框架并具有片材路径的第一部分的片材处理系统的固定部件; 安装到框架上的片材处理系统的可取出部件,并且具有限定机器内的固定表面和可抽出部件之间的相对较窄的间隙的片材平整侧,并且包括邻近第一部分的片材路径的第二部分 片材路径; 以及安装到固定部件的片材折叠装置。 片材折叠装置包括限定狭缝的大致U形部分,并且具有形成片材路径的第一部分的边缘的一部分的片材接触表面,用于接触和偏转成第一折叠,片材的边缘 当抽出部件被拉出机器时,在片材路径的第一和第二部分之间的界面处停滞。 U形部分的片材接触表面具有第一曲率半径,其限定用于偏转和折叠失速片材的第一凹面,以及限定第二表面的第二曲率半径,用于将折叠的片材引导出槽。

    Stalled sheet pulling and crushing apparatus in an electrostatographic
machine
    7.
    发明授权
    Stalled sheet pulling and crushing apparatus in an electrostatographic machine 失效
    静电片机中失稳的片材拉拔和破碎设备

    公开(公告)号:US5732620A

    公开(公告)日:1998-03-31

    申请号:US837028

    申请日:1997-04-11

    IPC分类号: G03G21/16 B30B3/02 G03G15/00

    摘要: In a sheet handling machine having a frame, and a cut sheet handling system including a sheet path, a stalled sheet pulling and crushing apparatus for reducing a sheet, stalled across an interface between a withdrawable and a fixed component of a cut sheet handling system into a shape and size suitably enabling reliable removal of the stalled sheet through a relatively narrow gap between the withdrawable and fixed components of the sheet handling system. The stalled sheet pulling and crushing apparatus includes a fixed component of the sheet handling system connected to a frame of the machine and having a first sheet gripping nip forming a first section of a sheet path; a withdrawable component of the sheet handling system mounted movably to the frame, and having a sheet flattening side defining a relatively narrow gap between a fixed surface within the machine and the withdrawable component, the withdrawable component including a second sheet gripping nip forming a second section of the sheet path for adjoining the first section of the sheet path; and a movable sheet pulling device comprising a rotatable roller mounted to the fixed surface and projecting partially into the narrow gap for contacting and rotatably applying a sheet pulling force on the stalled sheet in a first direction to pull an end of the stalled sheet out of the first sheet gripping nip, as the withdrawable component is being pulled in a second and different direction relative to the first direction. The rotatable roller as mounted cooperating with the sheet crushing side of the withdrawable component to accordion fold and crush the pulled out stalled sheet without a tear, into a shape and size suitably enabling reliable removal of the stalled sheet through the narrow gap.

    摘要翻译: 在具有框架的片材处理机和包括片材路径的切割片材处理系统中,用于减少片材的停滞的片材拉出和破碎装置停滞在切割片材处理系统的抽出部件和固定部件之间的界面上, 适当地使形状和尺寸能够通过片材处理系统的抽出和固定部件之间相对较窄的间隙可靠地移除失速的片材。 停滞的片材拉出和破碎装置包括连接到机器的框架的片材处理系统的固定部件,并且具有形成片材路径的第一部分的第一片材​​夹持夹持物; 片材处理系统的抽出部件可移动地安装到框架上,并且具有限定机器内的固定表面和可抽出部件之间的相对较窄间隙的片材平整侧,可抽出部件包括第二片夹持压区,形成第二部分 用于邻接片材路径的第一部分的片材路径; 以及可动片材牵引装置,包括安装到所述固定表面的可旋转辊,并且部分地突出到所述窄间隙中以在第一方向上将片材拉力接合并可旋转地施加在所述停滞的片材上,以将所述停滞的片材的一端拉出 第一片夹持压区,因为抽出部件相对于第一方向在第二不同方向被拉动。 安装的可旋转辊与可抽出部件的片材破碎侧配合成折叠折叠,并且将拉出的失速片材无撕裂地压碎成适当的形状和尺寸,使得能够通过狭窄的间隙可靠地移除失速的片材。

    Optical transparency detection and discrimination in an electronic
reprographic printing system
    8.
    发明授权
    Optical transparency detection and discrimination in an electronic reprographic printing system 失效
    电子复印系统中的光学透明度检测和辨别

    公开(公告)号:US5329338A

    公开(公告)日:1994-07-12

    申请号:US755987

    申请日:1991-09-06

    CPC分类号: G03G15/5029 B65H2701/1712

    摘要: A method and apparatus for detecting and discriminating a copy sheet in an electronic reprographic printing system has a diffuse reflective sensor disposed adjacent a portion of the path over which the copy sheet moves. The sensor is disposed so that its optical axis intersects the copy sheet where the angle of intersection between the copy sheet and the optical axis remains within a specified range of angles for the maximum length of the copy sheet. A diffuse reflective sensor is also disposed adjacent inlet baffles with its optical axis aligned so that a transparent copy sheet is not detected while an opaque copy sheet is.

    摘要翻译: 用于检测和识别电子复印打印系统中的复印纸的方法和装置具有邻近复印纸移动的路径的一部分附近布置的漫反射传感器。 传感器被设置成使得其光轴与复印纸相交,其中复印纸和光轴之间的相交角保持在复印纸的最大长度的特定的角度范围内。 扩散反射传感器也设置在入口挡板附近,其光轴对准,使得在不透明复印纸是不检测到透明复印纸。

    Sheet variable corrugating and feeding nip
    9.
    发明授权
    Sheet variable corrugating and feeding nip 失效
    纸张可变波纹和进给辊隙

    公开(公告)号:US5280901A

    公开(公告)日:1994-01-25

    申请号:US36608

    申请日:1993-03-24

    摘要: A sheet feeding and corrugating system, especially for output of image substrate sheets of a reproduction apparatus, wherein the sheets are fed in a normal path through a sheet feeding nip comprising plural spaced sheet feeding rollers. Both feeding and variable corrugating of flimsy or stiff sheets is provided by spherical balls freely mounted in generally vertical ball retainers providing for vertical movement and dual axis rotation against the sheet feeding rollers to define the sheet feeding nip and by additional similar balls (in additional similar ball retainers) intermediately of the feed rollers, which additional balls are unsupported vertically except by bottom-of-travel retainers so that these additional intermediate balls roll gravity-loaded against a sheet being fed through the nip to provide sheet corrugation varying automatically with the stiffness of the sheet, and are freely liftable up to the level of the nip by stiff sheets resisting corrugation. These balls may be readily added to or removed to independently increase or decrease the sheet nip and/or corrugation forces at their respective locations transverse the nip. A sheet side shifting mechanism can laterally offset the sheets in the same nip to eject offset, by moving only the sheet feeding rollers, without resistance from the stationarily mounted balls, all of which roll freely laterally as well in the normal feeding direction.

    摘要翻译: 一种送纸和波纹系统,特别是用于输出再现设备的图像基片的片材,其中片材通过包括多个隔开的片材进给辊的片材进给辊隙在正常路径中进给。 薄片或刚性片材的进给和可变波纹均由自由安装在大致垂直的球保持器中的球形球提供,提供垂直运动,并且双轴旋转抵靠片材进给辊以限定片材进给辊隙和附加的类似球 滚珠保持器),进给辊之间的中间,除了底部行程保持器之外,附加的滚珠不垂直支撑,使得这些附加的中间滚珠重力加载抵靠经过辊隙的纸张,以提供自动变化的纸张波纹,其刚度 的片材,并且可以通过抵抗波纹的刚性片材自由地提升到辊隙的水平。 这些球可以容易地添加到或去除,以独立地增加或减少横向于压区的它们各自位置处的片夹和/或波纹力。 片材侧移动机构可以通过仅移动片材进给辊而不会受到固定安装的球的阻力而横向偏移相同辊隙中的片材以排出偏移,所有这些滚珠也在正常进给方向上横向自由地滚动。