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公开(公告)号：US4278345A
公开(公告)日：1981-07-14
申请号：US75980
申请日：1979-09-17
CPC分类号： G03G21/0088 , G03G21/0029
摘要： An apparatus for cleaning residual toner from the photosensitive surface of the rotating drums of photocopying machines. The cleaning assembly includes at least a cleaning roller and a cleaning blade which are moveable from an inoperative position spaced away from the photosensitive surface to an operative position in contact with the surface. In operation, the rotating drum begins its rotation while the roller and blade are in their inoperative position. The drum surface contacts liquid developer solution at the developing station. The roller and blade contact the drum after a predetermined time duration and therefore contact a wetted drum surface so as to avoid possible damage to the photosensitive surface and the cleaning members. A delay arrangement directs developer to the cleaning blade and roller when they are in their operative position contacting the drum.
摘要翻译： 用于从复印机的旋转鼓的感光表面清除残留调色剂的设备。 清洁组件至少包括清洁辊和清洁刮板，其可以从远离感光表面的不工作位置移动到与表面接触的操作位置。 在操作中，当滚筒和叶片处于不工作位置时，旋转滚筒开始转动。 鼓表面在显影站接触液体显影剂溶液。 辊子和叶片在预定的时间段之后接触滚筒，因此接触润湿的滚筒表面，以避免可能损坏感光表面和清洁部件。 延迟装置当显影剂处于与滚筒接触的操作位置时将显影剂引导到清洁刮刀和滚筒。
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公开(公告)号：US4236483A
公开(公告)日：1980-12-02
申请号：US56128
申请日：1979-07-09
CPC分类号： G03G15/11
摘要： A metering roll, employed between the developing station and the transfer station of a photocopier which uses a liquid toner, controls the thickness of the liquid on the photosensitive drum surface when it is presented to the transfer station. Shoe-like elements fixed between the drum and roll maintain the central metering portion in a substantially constant spaced apart relationship to the photosensitive drum surface and thereby tend to limit and control the thickness of developer on the drum surface at the transfer station. One surface of the element substantially conforms to an arc of the drum surface and another surface defines a hole through which a portion of the metering roll passes.
摘要翻译： 在显影站和使用液体调色剂的复印机的转印站之间使用的计量辊在被呈现给转印站时控制感光鼓表面上的液体的厚度。 固定在滚筒和滚筒之间的鞋状元件将中央计量部分保持在与感光鼓表面基本上恒定的间隔开的关系，从而倾向于限制和控制转印站上鼓表面上的显影剂的厚度。 元件的一个表面基本上符合鼓表面的弧形，另一表面限定一个孔，计量辊的一部分穿过该孔通过。
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公开(公告)号：US4320961A
公开(公告)日：1982-03-23
申请号：US115715
申请日：1980-01-28
CPC分类号： G03G15/706 , G03G15/11
摘要： A method and apparatus are described for correcting a jam condition in a photocopier, the copier having a transfer station at which a developed image is transferred from a moving photosensitive surface onto a sheet material and a cleaning station having a cleaning blade bearing against the width of the photosensitive surface. The apparatus has energy transmitting and receiving elements which detect the presence of unremoved sheet material on the photosensitive surface between the transfer station and the cleaning station and provides for continued movement of the photosensitive surface until the sheet material strikes the cleaning blade. In this way, a buckle is formed in the sheet material between the cleaning station and the transfer station which facilitates removal of the sheet from the copier.
摘要翻译： 描述了一种用于校正复印机中的卡纸状况的方法和装置，所述复印机具有将显影图像从移动感光表面转印到片材上的转印站，以及具有抵抗宽度为 感光面。 该装置具有能量传输和接收元件，其检测在转印站和清洁站之间的感光表面上存在未移动的片材，并且提供感光表面的继续移动，直到片材撞击清洁刀片。 以这种方式，在清洁站和转运站之间的片材中形成一个带扣，这有利于从复印机上移除纸张。
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4.发明授权
公开(公告)号：US4304486A
公开(公告)日：1981-12-08
申请号：US86749
申请日：1979-10-22
IPC分类号： B65H1/04 , B65H1/12 , B65H29/56 , G03G9/12 , G03G15/00 , G03G15/04 , G03G15/043 , G03G15/06 , G03G15/10 , G03G21/00
CPC分类号： G03G15/6532 , B65H1/04 , B65H1/12 , B65H29/56 , G03G15/065 , G03G15/10 , G03G15/706 , G03G15/75 , G03G21/0029 , G03G21/0088 , G03G9/12
摘要： In an optical imaging system for an electrophotographic copier, a photodetector intercepts a portion of unfocused light being reflected toward the photoconductive surface. An electronic circuit generates a biasing voltage for the copier development electrode which varies with the amount of light incident on the photodetector a set time after the photodetector receives a distinctively intense light pulse reflected from a high-reflectivity strip positioned ahead of the document being copied. The time delay insures that the light which determines the bias voltage has been reflected from the main body of the document. The light pulse from the high reflectivity strip can also independently actuate the copy paper feed mechanism to insure proper image registration.
摘要翻译： 在用于电子照相复印机的光学成像系统中，光电检测器拦截一部分未聚焦的光被反射向光电导表面。 电子电路产生用于复印机显影电极的偏置电压，该偏置电压在光电检测器接收到从被复印的文档之前的高反射率条带反射的强烈的光脉冲之后，在入射到光电检测器上的光量的一定时间内变化。 时间延迟确保了确定偏置电压的光已从文件主体反射出来。 来自高反射带的光脉冲也可以独立地致动复印纸馈送机构，以确保正确的图像配准。
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公开(公告)号：US4014291A
公开(公告)日：1977-03-29
申请号：US652172
申请日：1976-01-26
申请人： Austin E. Davis
发明人： Austin E. Davis
摘要： A system for developing a latent electrostatic image pattern formed on a coated photoconductive paper and which utilizes a nonconductive transfer cylinder that encloses a rotating cylindrical magnet. The magnet produces a longitudinally uniform magnetic field at the outer surface of the cylinder that draws a polarized, magnetically attractable, one component toner material over the outer surface of the transfer cylinder from a toner supply means to a deposit zone over the paper. A roller, plate, or other suitable unit under the paper supports the paper with a uniform, preselected minimum spacing between the transfer cylinder and the electrostatic image pattern on the paper. In the deposit zone electrostatic forces and gravitational forces urging the toner material from the transfer cylinder to the paper exceed the magnetic forces holding the toner on the transfer cylinder causing the toner to deposit selectively in the image areas. In one form, nonconductive support members for the magnet, the transfer cylinder and the paper support roller or other spacing control device cooperate with the nonconductive material forming or coating the transfer cylinder in blocking an electrical flow between the paper and the transfer cylinder.
摘要翻译： 一种用于显影形成在涂覆的光电导纸上的静电潜像图案的系统，其利用围绕旋转圆柱形磁体的非导电转移圆柱体。 磁体在气缸的外表面处产生纵向均匀的磁场，其将偏振的，可磁吸引的单组分调色剂材料从转印圆筒的外表面上从调色剂供给装置吸引到纸上的沉积区。 纸张下方的滚筒，板或其他合适的单元在纸张上以传统滚筒和静电图像图案之间均匀的预选的最小间距支撑纸张。 在沉积区中，将调色剂材料从传送滚筒推动到纸张上的静电力和重力超过了将调色剂保持在传送滚筒上的磁力，导致调色剂选择性沉积在图像区域中。 在一种形式中，用于磁体，传送滚筒和纸张支撑辊或其它间隔控制装置的非导电支撑构件与形成或涂覆传送滚筒的非导电材料配合，以阻挡纸张和传送滚筒之间的电流。
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公开(公告)号：US4248522A
公开(公告)日：1981-02-03
申请号：US40901
申请日：1979-05-21
申请人： Austin E. Davis
发明人： Austin E. Davis
CPC分类号： G03G15/11
摘要： A metering roll, employed between the developing station and the transfer station of a photocopier which uses a liquid toner, controls the thickness of the liquid on the photosensitive drum surface when it is presented to the transfer station. The metering roll has a central metering portion and a distance control position at each end. The metering portion and the distance control portions are coaxial and have a fixed angular relationship with respect to each other. The metering roll distance control portions are urged against the moving copier photosensitive drum surface and rotate in the same angular direction as the drum. Thus the distance control portions engage drum surface edges in a sliding frictional relationship. The distance control portions are sized to maintain the central metering portion in a substantially constant spaced apart relationship to the drum surface and thereby tend to limit and control the thickness of developer on the drum surface at the transfer station. A neck portion adjacent the central metering portion at each of its ends helps to prevent buildup of developer fluid on the distance control portions.
摘要翻译： 在显影站和使用液体调色剂的复印机的转印站之间使用的计量辊在被呈现给转印站时控制感光鼓表面上的液体的厚度。 计量辊具有中央计量部分和每端的距离控制位置。 计量部分和距离控制部分是同轴的并且彼此具有固定的角度关系。 计量辊距离控制部分被推靠在移动的复印机感光鼓表面上并沿与鼓相同的角度方向旋转。 因此，距离控制部分以滑动摩擦关系接合鼓表面边缘。 距离控制部分的尺寸设计成将中央计量部分保持在与鼓表面基本上恒定的间隔开的关系，从而倾向于限制和控制转印站处的鼓表面上的显影剂的厚度。 在其每个端部处邻近中央计量部分的颈部部分有助于防止显影剂流体在距离控制部分上的累积。
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