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公开(公告)号：US5280302A
公开(公告)日：1994-01-18
申请号：US894675
申请日：1992-06-05
CPC分类号： G03G21/0047 , G03G15/342 , G03G2217/0041
摘要： The present invention is used in an image-recording apparatus wherein a substantially uniform layer of triboelectrically charged thermoplastic toner particles is deposited onto an imaging member. The toner particles are imagewise heated such that the heated toner particles are thermally tacked to the imaging member. The imaging member is then contacted with a mass of magnetic carrier particles to attract nonheated toner particles to the carrier particles, thereby removing nonheated toner particles from the imaging member and ladening the carrier particles with the removed toner particles. In accordance with the invention, upon using the carrier particles to attract and remove toner from the imaging member, the toner-laden carrier particles are mixed with a supply of carrier particles in which the average number of toner particles per carrier particle is lower than that of said toner-laden carrier particles. This produces a mixture of carrier particles in which the average amount of toner attracted to each carrier particle is substantially lower than that of the toner-laden carrier particles. This mixture is then subjected to a detoning step in which essentially all of the toner on each carrier particle is removed prior to the carrier particles being contacted to the imaging member again.
摘要翻译： 本发明用于图像记录装置中，其中将基本上均匀的摩擦带电的热塑性调色剂颗粒层沉积到成像构件上。 将调色剂颗粒成像加热，使得加热的调色剂颗粒热粘合到成像构件。 然后将成像构件与大量的磁性载体颗粒接触以将未加热的调色剂颗粒吸引到载体颗粒，从而从成像构件除去未加热的调色剂颗粒，并用去除的调色剂颗粒填充载体颗粒。 根据本发明，当使用载体颗粒从成像构件吸引和去除调色剂时，将载色剂载体颗粒与载体颗粒供应源混合，其中每个载体颗粒的平均调色剂颗粒数低于载体颗粒的平均数 的所述载色剂载体颗粒。 这产生载体颗粒的混合物，其中吸附到每个载体颗粒的调色剂的平均量基本上低于载有调色剂的载体颗粒的平均量。 然后对该混合物进行一个引发步骤，其中在载体颗粒再次与成像构件接触之前，将每个载体颗粒上的基本上所有的调色剂除去。
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公开(公告)号：US5229825A
公开(公告)日：1993-07-20
申请号：US801298
申请日：1991-12-02
IPC分类号： G03G15/09 , G03G15/095 , G03G21/00
CPC分类号： G03G15/095 , G03G15/09 , G03G21/0047
摘要： In accordance with the invention, there is provided a magnetic brush laydown/pickup apparatus having a shell surrounding a plurality of alternating pole magnets, said shell and magnets being relatively movable to transport developer mix through a development zone. Developer mix, comprised of toner particles and carrier particles, is selectively supplied to the surface of the shell at a location upstream of a development zone. The developer mix is selectively removed from the surface of the shell at a location downstream of the development zone. Toner particles are selectively stripped from the developer mix on the shell. A control is used to (1) activate the supply and removal of developer mix to and from the shell and deactivate the stripping of toner particles to provide a source of toner particles for laydown in the development zone, and (2) deactivate the supply and removal of developer mix to and from the shell and activate the stripping of toner particles to provide a source of developer mix, substantially depleted of toner particles, for toner particle pickup in the development zone.
摘要翻译： 根据本发明，提供了一种磁刷沉积/拾取装置，其具有围绕多个交变极磁体的壳体，所述壳体和磁体可相对移动以将显影剂混合物输送通过显影区域。 包含调色剂颗粒和载体颗粒的显影剂混合物在显影区上游的位置被选择性地供应到壳的表面。 显影剂混合物在显影区下游的一个位置选择性地从壳的表面去除。 选择性地从壳上的显影剂混合物中剥离调色剂颗粒。 控制器用于（1）激活供应和去除显影剂混合物到壳体和从壳体的去除，并且去除调色剂颗粒的剥离以提供用于在开发区域中沉积的调色剂颗粒源，和（2）停用供应和 去除显影剂混合物到壳体和从壳体移除，并激活调色剂颗粒的剥离，以提供显影剂混合物源，显影剂混合物，基本上不含调色剂颗粒，用于显影区域中的调色剂颗粒拾取。
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公开(公告)号：US5804341A
公开(公告)日：1998-09-08
申请号：US698838
申请日：1996-08-16
CPC分类号： G03C11/08 , Y10S430/162
摘要： A clear protective overcoat is provided to an image formed in a silver halide photographic element. The overcoat is formed by electrostatically applying a uniform distribution of clear toner to an imaged photographic element and then fusing the toner to form an overcoat. The toner can be applied only in a limited area of the element.
摘要翻译： 向形成在卤化银照相元件上的图像提供透明的保护外涂层。 外涂层通过静电将均匀分布的透明调色剂施加到成像的照相元件上，然后将调色剂熔合以形成外涂层而形成。 调色剂可以仅施加在元件的有限区域中。
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公开(公告)号：US5296905A
公开(公告)日：1994-03-22
申请号：US975258
申请日：1992-11-12
申请人： Kevin E. Yousey , Dennis R. Kamp
发明人： Kevin E. Yousey , Dennis R. Kamp
IPC分类号： B41M5/398 , G03G15/095 , G03G15/34 , G03G21/00
CPC分类号： B41M5/398 , G03G15/095 , G03G15/342 , G03G2217/0041
摘要： Image forming apparatus includes a cleaning device for cleaning toner from a surface. Magnetic particulate cleaning material is moved through a cleaning zone by a rotating magnetic core. The particulate cleaning material moves on a surface which is extended generally in an upstream direction with respect to movement of the surface being cleaned. The extension increases the effectiveness of the cleaning without increasing pickup of the cleaning material by the surface.An alternative cleaning device includes a magnetic shunt between a rotating core and a shell in which magnetic particulate cleaning material is driven by rotation of the core. The shunt interrupts the magnetic field of the core to increase the effectiveness of the cleaning without adversely affecting its softness.
摘要翻译： 图像形成装置包括用于从表面清洁调色剂的清洁装置。 磁性颗粒清洁材料通过旋转磁芯移动通过清洁区域。 颗粒状清洁材料在相对于被清洁表面的运动大致沿上游方向延伸的表面上移动。 该延伸增加了清洁的有效性，而不增加表面对清洁材料的拾取。 替代的清洁装置包括在旋转芯和壳之间的磁分路，其中磁性颗粒清洁材料通过芯的旋转而被驱动。 分流器中断磁芯的磁场以增加清洁的有效性而不会不利地影响其柔软度。
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