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公开(公告)号：US5745144A
公开(公告)日：1998-04-28
申请号：US448767
申请日：1995-05-24
申请人： Orrin D. Christy
发明人： Orrin D. Christy
CPC分类号： G03G15/342 , G03G15/34 , G03G15/348 , G03G2217/0016 , G03G2217/005
摘要： A method and apparatus are provided for "field effect imaging" of moving substrates, such as webs of paper. Non-conductive, non-magnetic toner having approximately a 5-20 micron mean particle size is electrically charged to a level of at least about 8 micro Coulombs/gram and then a first roller with a conductive surface is brought into operative association with the electrically charged toner so that toner particles adhere to the surface. The toner particles are preferably maintained in an electrostatic fluidized bed, and charged by a corona element in the bed. An array of pin or stylus primary electrodes are selectively energized or de-energized to provide no-write or write condition, respectively using a computer to switch the electrodes into or out of operative connection to a source of electrical potential. The toner particles are transferred from the first roller to a substrate either directly (after passing past the primary electrodes), or they are first transferred to a second roller which then brings the toner particles into contact with the substrate. If a second roller is utilized, the primary electrodes can be in association with the first roller, or between the first and second rollers for transferring only "write" toner to the second roller.
摘要翻译： 提供了一种用于诸如纸幅之类的移动基板的“场效应成像”的方法和装置。 具有大约5-20微米平均粒度的非导电非磁性调色剂被带电至至少约8微·库仑/克，然后具有导电表面的第一辊与电 使调色剂颗粒附着在表面上。 调色剂颗粒优选保持在静电流化床中，并通过床中的电晕元件充电。 引脚或触笔主电极的阵列分别选择性地通电或断电以提供不写或写入条件，分别使用计算机将电极切换到与电势的操作连接的电极。 调色剂颗粒从第一辊直接（通过主电极之后）转移到基底，或者它们首先转移到第二辊，然后使调色剂颗粒与基底接触。 如果使用第二辊，主电极可以与第一辊相关联，或者在第一和第二辊之间，仅将“写入”调色剂传送到第二辊。
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2.发明授权
公开(公告)号：US6002415A
公开(公告)日：1999-12-14
申请号：US906806
申请日：1997-08-06
申请人： Orrin D. Christy
发明人： Orrin D. Christy
CPC分类号： G03G15/342 , G03G15/34 , G03G15/348 , G03G2217/0016 , G03G2217/005
摘要： A method and apparatus are provided for "field effect imaging" of moving substrates, such as webs of paper. Non-conductive, non-magnetic toner having approximately a 5-20 micron mean particle size is electrically charged to a level of at least about 8 micro Coulombs/gram and then a first roller with a conductive surface is brought into operative association with the electrically charged toner so that toner particles adhere to the surface. The toner particles are preferably maintained in an electrostatic fluidized bed, and charged by a corona element in the bed. An array of pin or stylus primary electrodes are selectively energized or de-energized to provide no-write or write condition, respectively using a computer to switch the electrodes into or out of operative connection to a source of electrical potential. The toner particles are transferred from the first roller to a substrate either directly (after passing past the primary electrodes), or they are first transferred to a second roller which then brings the toner particles into contact with the substrate. If a second roller is utilized, the primary electrodes can be in association with the first roller, or between the first and second rollers for transferring only "write" toner to the second roller.
摘要翻译： 提供了一种用于诸如纸幅之类的移动基板的“场效应成像”的方法和装置。 具有大约5-20微米平均粒度的非导电非磁性调色剂被带电至至少约8微·库仑/克，然后具有导电表面的第一辊与电 使调色剂颗粒附着在表面上。 调色剂颗粒优选保持在静电流化床中，并通过床中的电晕元件充电。 引脚或触笔主电极的阵列分别选择性地通电或断电以提供不写或写入条件，分别使用计算机将电极切换到与电势的操作连接的电极。 调色剂颗粒从第一辊直接（通过主电极之后）转移到基底，或者它们首先转移到第二辊，然后使调色剂颗粒与基底接触。 如果使用第二辊，主电极可以与第一辊相关联，或者在第一和第二辊之间，仅将“写入”调色剂传送到第二辊。
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公开(公告)号：US5883656A
公开(公告)日：1999-03-16
申请号：US356571
申请日：1994-12-15
申请人： Orrin D. Christy
发明人： Orrin D. Christy
CPC分类号： G03G15/342 , G03G15/34 , G03G15/348 , G03G2217/0016 , G03G2217/005
摘要： A method and apparatus are provided for "field effect imaging" of moving substrates, such as webs of paper. Non-conductive, nonmagnetic toner having approximately a 5-20 micron mean particle size is electrically charged to a level of at least about 8 micro Coulombs/gram and then a first roller with a conductive surface is brought into operative association with the electrically charged toner so that toner particles adhere to the surface. The toner particles are preferably maintained in an electrostatic fluidized bed, and charged by a corona element in the bed. An array of pin or stylus primary electrodes are selectively energized or de-energized to provide no-write or write condition, respectively using a computer to switch the electrodes into or out of operative connection to a source of electrical potential. The toner particles are transferred from the first roller to a substrate either directly (after passing past the primary electrodes), or they are first transferred to a second roller which then brings the toner particles into contact with the substrate. If a second roller is utilized, the primary electrodes can be in association with the first roller, or between the first and second rollers for transferring only "write" toner to the second roller.
摘要翻译： 提供了一种用于诸如纸幅之类的移动基板的“场效应成像”的方法和装置。 将具有大约5-20微米平均粒度的非导电非磁性调色剂充电至至少约8微·库仑/克的水平，然后具有导电表面的第一辊与带电的调色剂 使得调色剂颗粒附着在表面上。 调色剂颗粒优选保持在静电流化床中，并通过床中的电晕元件充电。 引脚或触笔主电极的阵列分别选择性地通电或断电以提供不写或写入条件，分别使用计算机将电极切换到与电势的操作连接的电极。 调色剂颗粒从第一辊直接（通过主电极之后）转移到基底，或者它们首先转移到第二辊，然后使调色剂颗粒与基底接触。 如果使用第二辊，主电极可以与第一辊相关联，或者在第一和第二辊之间，仅将“写入”调色剂传送到第二辊。
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公开(公告)号：US4763143A
公开(公告)日：1988-08-09
申请号：US63113
申请日：1987-06-17
申请人： Sayoko Ohba , Kenji Okuna , Hidefumi Ohtsuka
发明人： Sayoko Ohba , Kenji Okuna , Hidefumi Ohtsuka
CPC分类号： G03G15/09 , G03G15/348 , G03G2217/005
摘要： Electromagnetic toner is supplied to the surface of the image development drum formed of a hollow aluminum covered with electric insulation; a permanent magnet is installed in the hollow portion of the image development drum; a recording electrode is provided on the surface side of the image development drum with a small gap formed between the drum surface and the electrode; a voltage is applied between the recording electrode and the image development drum according to the image to be recorded; the image development drum is turned to form a toner image on its surface; and the toner image formed on the drum surface is then transferred onto a recording sheet.
摘要翻译： 将电磁调色剂供给到由覆盖有电绝缘体的中空铝形成的图像显影鼓的表面; 在图像显影鼓的中空部分中安装永磁体; 记录电极设置在图像显影鼓的表面侧，在鼓表面和电极之间形成有小的间隙; 根据要记录的图像在记录电极和图像显影鼓之间施加电压; 图像显影鼓被转动以在其表面上形成调色剂图像; 并且形成在鼓表面上的调色剂图像然后转印到记录片材上。
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公开(公告)号：US20180088486A1
公开(公告)日：2018-03-29
申请号：US15711393
申请日：2017-09-21
发明人： Yuichi MATSUSHITA , Hiroshige HIRAMATSU , Chieko Mimura , Kengo YADA , Hotaka KAKUTANI , Shota Iriyama
IPC分类号： G03G15/00
CPC分类号： G03G15/0808 , G03G15/0275 , G03G15/04072 , G03G15/045 , G03G15/6552 , G03G21/0005 , G03G21/0058 , G03G21/0064 , G03G21/007 , G03G21/10 , G03G21/1647 , G03G2215/00421 , G03G2215/025 , G03G2217/005 , G03G2221/0005 , G03G2221/0021 , G03G2221/0026 , G03G2221/0073 , G03G2221/0089
摘要： In an image forming apparatus, the image bearing member has a surface and configured to rotate about an axis. The collection device is in contact with the surface, and configured to collect materials adhered to the surface. The developing roller is configured to provide a charged toner having a first polarity. The processor is configured to perform: executing a print job in a printing period; executing, in a non-printing period, a first process in which the image bearing member is rotated at least one rotation while a holding bias is applied to the collection device, the holding bias having a second polarity opposite to the first polarity; and executing, in a non-printing period after the first process, a second process in which the image bearing member is rotated while an ejection bias is applied to the collection device, the ejection bias having the first polarity.
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6.发明授权Electrostatic printing method and apparatus having enhanced image resolution characteristics 有权具有增强的图像分辨特性的静电印刷方法和装置
公开(公告)号：US6117602A
公开(公告)日：2000-09-12
申请号：US232460
申请日：1999-01-19
申请人： Chu-heng Liu , Weizhong Zhao
发明人： Chu-heng Liu , Weizhong Zhao
CPC分类号： G03G15/342 , G03G13/016 , G03G2217/005
摘要： A method and apparatus for enhancing image resolution characteristics of an electrostatographic printing device use toners of opposite polarity to generate a toner image.
摘要翻译： 用于增强静电印刷装置的图像分辨特性的方法和装置使用相反极性的调色剂以产生调色剂图像。
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公开(公告)号：US4777499A
公开(公告)日：1988-10-11
申请号：US152841
申请日：1988-02-05
申请人： Kenji Okuna , Hidefumi Ohtsuka , Sayoko Ohba , Takaomi Nishigaito , Katsumi Muroi , Tsutomu Iimura , Ryoji Kojima
发明人： Kenji Okuna , Hidefumi Ohtsuka , Sayoko Ohba , Takaomi Nishigaito , Katsumi Muroi , Tsutomu Iimura , Ryoji Kojima
CPC分类号： B82Y15/00 , G03G15/24 , G03G15/348 , G03G2217/005
摘要： A method and an apparatus for recording an image is disclosed, in which toner is supplied between a conductive recording drum covered with an insulating material and recording electrodes with the forward end thereof with a small gap from the drum and inclined at a great angle upstream of the direction of rotation of the recording drum. A toner carriage force is generated in the toner to flow out downstream by rotation of the recording drum. A permanent magnet is arranged in the recording drum to form a toner chain inclined at a great angle downstream of the recording drum from the forward end of the recording electrodes. The component of the magnetic force of the magnet in the direction of drum movement is balanced with the toner carriage force. Upon application of a recording voltage to the recording electrodes under this condition, the toner of the most downstream toner chain in contact with the drum surface develops a force of adhesion to the recording drum so that the drum rotates downstream with the toner attached thereon, thus forming an image due to the toner on the recording drum.
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