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公开(公告)号：US4686581A
公开(公告)日：1987-08-11
申请号：US764295
申请日：1985-08-09
CPC分类号： H04N1/1215 , H04N1/03 , H04N1/1903 , H04N1/193 , H04N1/1934 , H04N2201/02412 , H04N2201/0428
摘要： The invention provides a scanner system which in one embodiment includes only a single moving part in the document path, namley a drive roll, which serves not only to move the document through the system, but also to provide a backing against which the document is pushed while a proximate region thereof is being scanned. The invention in an embodiment also provides an opto-mechanical assembly that is shock-mounted to the frame of the system at only three-spaced apart locations, so that the assembly tends to be isolated from vibration and torsional forces.
摘要翻译： 本发明提供了一种扫描器系统，其在一个实施例中仅包括文档路径中的单个移动部分，namley驱动辊，其不仅用于将文档移动通过系统，而且还提供用于推动文档的背衬 而其正在扫描其邻近区域。 在一个实施例中的本发明还提供了一种光机械组件，其在仅三个间隔开的位置处被冲击安装到系统的框架，使得组件倾向于与振动和扭转力隔离。
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公开(公告)号：US5489925A
公开(公告)日：1996-02-06
申请号：US57091
申请日：1993-05-04
申请人： Jeffrey B. Brooks , Mark S. Noyes , Frank W. Martines , Charles W. Spehrley, Jr. , Steven H. Barss , Edward R. Moynihan , Nathan P. Hine , David W. Gailus
发明人： Jeffrey B. Brooks , Mark S. Noyes , Frank W. Martines , Charles W. Spehrley, Jr. , Steven H. Barss , Edward R. Moynihan , Nathan P. Hine , David W. Gailus
CPC分类号： B41J25/304 , B41J2/175 , B41J2/17593 , B41J2/19 , B41J2/195
摘要： In the ink jet printing system described in the specification, a hot melt ink jet printhead having two ink reservoirs is coupled through an ink supply line to a remote hot melt ink supply and a temperature controller is arranged to control the temperatures of the ink in the remote ink supply, the supply line, the ink reservoirs in the printhead and passages leading from the reservoirs to the ink jet orifices at selected temperature levels to inhibit high-temperature degradation of the ink while permitting the ink to be jetted at the desired jetting temperature. In addition, a pressure control system controls the pressure of the ink in the printhead at one or more selected levels to permit the printhead to be used at different orientations and to permit purging of air bubbles and contaminants from the orifice passageways and to supply a relatively high vacuum to a deaerator in the printhead to extract dissolved air from the ink. A check valve in the ink supply line permits the printhead to be positioned at different elevations with respect to the remote ink supply without causing any undesired flow of ink between the reservoir and the printhead.
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公开(公告)号：US4814786A
公开(公告)日：1989-03-21
申请号：US43369
申请日：1987-04-28
CPC分类号： H05K7/1434 , B41J2/17593 , H05K7/20236
摘要： In the representative hot melt ink supply system described in the specification, a first hot melt ink supply reservoir maintains ink in molten condition during operation of the system and a second reservoir mounted with an ink jet head on a movable carriage communicates with the first reservoir through a flexible supply line. The ink in the supply line is normally kept in solid condition and, when a reduced level of ink is detected in the second reservoir, the supply line is heated to melt the ink in the line and a pump is actuated to transfer ink from the first reservoir to the second reservoir. To permit use of pigmented inks, each of the reservoirs is heated to provide a thermal gradient therein so as to maintain convective circulation of the ink. An ink circulation path is provided to cause convective circulation of pigmented ink in the ink jet head.
摘要翻译： 在本说明书中描述的代表性热熔油墨供应系统中，第一热熔油墨供应储存器在系统操作期间将油墨保持在熔融状态，并且在可移动托架上安装有喷墨头的第二储存器与第一储存器通过 灵活的供应线。 供应管线中的油墨通常保持在固体状态，并且当在第二储存器中检测到油墨水平降低时，供应管线被加热以熔化管线中的油墨，并且泵致动以从第一储存器 水库到第二水库。 为了允许使用着色油墨，每个储存器被加热以在其中提供热梯度，以便保持油墨的对流循环。 提供油墨循环路径以引起着色油墨在喷墨头中的对流循环。
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公开(公告)号：US4788556A
公开(公告)日：1988-11-29
申请号：US43372
申请日：1987-04-28
CPC分类号： B41J2/19
摘要： In the particular embodiment of an ink deaerator described in the specification, an elongated ink path leading to an ink jet head is formed between two permeable membranes. The membranes are backed by air plenums which contain support members to hold the membranes in position. Reduced pressure is applied to the plenums to extract dissolved air from the ink in the ink path. Increased pressure can also be applied to the plenums to eject ink from the ink jet head for purging. Within the ink jet head ink is circulated convectively from the orifice to the deaerating path even when the jet is not jetting ink.
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公开(公告)号：US4961082A
公开(公告)日：1990-10-02
申请号：US272004
申请日：1988-11-15
IPC分类号： B41J2/19
CPC分类号： B41J2/19
摘要： In the particular embodiment of an ink deaerator described in the specification, an elongated ink path leading to an ink jet head is formed between two permeable membranes. The membranes are backed by air plenums which contain support members to hold the membranes in position. Reduced pressure is applied to the plenums to extract dissolved air from the ink in the ink path. Increased pressure can also be applied to the plenums to eject ink from the ink jet head for purging. Within the ink jet head ink is circulated convectively from the orifice to the deaerating path even when the jet is not jetting ink.
摘要翻译： 在说明书中描述的油墨除气器的特定实施例中，通过喷墨头的细长油墨通道形成在两个可渗透膜之间。 膜由具有支撑构件的空气增压室支撑，以将膜保持在适当位置。 减压被施加到集气室以从油墨路径中的油墨中提取溶解的空气。 也可以将压力增加到气室以从喷墨头喷出油墨以进行清洗。 在喷墨头内，即使当射流不喷墨时，墨水也从孔口对流地循环到脱气路径。
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公开(公告)号：US5043741A
公开(公告)日：1991-08-27
申请号：US536961
申请日：1990-06-12
CPC分类号： B41J2/17593
摘要： In the particular embodiments described in the specification, a hot melt ink jet system includes a temperature-controlled platen provided with a heater and with a thermoelectric cooler electrically connected to a heat pump, and a temperature control unit for controlling the operation of the heater and the heat pump to maintain a substrate on the platen which receives the ink at a temperature which provides a desired spot size without causing print-through. In certain embodiments, the substrate temperature is from about 20.degree. C. above to about 20.degree. C. below the melting point of the ink and is determined by subtracting half the difference between the jetting temperature and the temperature at which the ink has a viscosity of about 200-300 cp from the latter temperature. The apparatus also includes a second thermoelectric cooler to solidify hot melt ink in a selected zone more rapidly to avoid offset by a pinch roll coming in contact with the surface of the substrate to which hot melt ink has been applied. An airtight enclosure surrounding the platen is connected to a vacuum pump and has slits adjacent to the platen to hold the substrate in thermal contact with the platen.
摘要翻译： 在说明书中描述的特定实施例中，热熔喷墨系统包括设置有加热器的温度控制的压板和与热泵电连接的热电冷却器，以及用于控制加热器的操作的温度控制单元 该热泵维持在压板上的基板，该基板在提供期望的光斑尺寸而不引起印刷的温度下接收墨水。 在某些实施方案中，基底温度为低于墨水熔点的约20℃至约20℃，并且通过减去喷射温度和墨水具有粘度的温度之间的差值的一半来确定 从后一个温度约为200-300 cp。 该装置还包括一个第二热电冷却器，用于在选择的区域中更快速地固化热熔油墨，以避免与已经施加热熔油墨的基板表面接触的夹送辊的偏移。 围绕压板的气密封壳连接到真空泵，并且具有与压板相邻的狭缝，以保持基板与压板热接触。
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公开(公告)号：US4951067A
公开(公告)日：1990-08-21
申请号：US202488
申请日：1988-06-03
CPC分类号： B41J11/0085 , B41J11/02 , B41J2/17593
摘要： In the particulate embodiments described in the specification, a hot melt ink jet system includes a temperature-controlled platen provided with a heater and with a thermoelectric cooler electrically connected to a heat pump, and a temperature control unit for controlling the operation of the heater and the heat pump to maintain a substrate on the platen which receives the ink at a temperature which provides a desired spot size without causing print-through. In certain embodiments, the substrate temperature is from about 20.degree. C. above to about 20.degree. C. below the melting point of the ink and is determined by subtracting half the difference between the jetting temperature and the temperature at which the ink has a viscosity of about 200-300 cp from the latter temperature. The apparatus also includes a second thermoelectric cooler to solidify hot melt ink in a selected zone more rapidly to avoid offset by a pinch roll coming in contact with the surface of the substrate to which hot melt ink has been applied. An airtight enclosure surrounding the platen is connected to a vacuum pump and has slits adjacent to the platen to hold the substrate in thermal contact with the platen.
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公开(公告)号：US4187969A
公开(公告)日：1980-02-12
申请号：US905665
申请日：1978-05-15
摘要： An apparatus in which a stack of sheets is brought into contact with the clamping surface of a fixed stapler head. After the stack is secured against the clamping surface, a staple is driven therethrough.
摘要翻译： 一种纸张堆叠与固定订书机头的夹紧表面接触的装置。 在堆叠被固定在夹紧表面上之后，钉被驱动通过其中。
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公开(公告)号：US4645195A
公开(公告)日：1987-02-24
申请号：US751655
申请日：1985-07-03
CPC分类号： G03G15/234 , G03G15/6561 , G03G2215/00405 , G03G2215/00438 , Y10S271/902
摘要： A document printer includes sheet-feeding apparatus for sequentially presenting both faces of a print-receiving sheet to a print station. According to a preferred embodiment, such apparatus features, as part of the duplex sheet path, reversible sheet-feeding means operable in first or second active modes for selectively feeding sheets into and out of a chute, located upstream from the feeding means, to reverse the sheet's lead edge/trail edge orientation. Such sheet-feeding means is also operable in a passive mode in which it allows sheets to advance, without substantial interference, downstream therepast to a registration position. Control means are provided for switching the feeding means from one of its active modes to its passive mode after a sheet has been advanced into the reversing chute to the extent that the sheet buckles, whereupon the restoring force in the sheet propels the leading edge of the sheet past the feed means and into engagement with a registration gate located at the registration position.
摘要翻译： 文件打印机包括用于将打印接收纸的两个面顺序地呈现到打印站的片材进给装置。 根据优选实施例，这种装置的特征在于，作为双面片材路径的一部分，可逆的片材进给装置可在第一或第二主动模式下操作，用于选择性地将片材进入和排出位于进料装置上游的滑槽，以反转 片材的前缘/尾端方向。 这种送纸装置也可以在被动模式下操作，其中它允许纸张在没有实质干涉的情况下向下游延伸到对准位置。 提供控制装置，用于在片材被推进到反向滑槽中之后将进给装置从其活动模式中的一个切换到其被动模式，使得片材的弯曲程度升高，因此片材中的恢复力推动了 通过进给装置并与位于配准位置的登记门接合。
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公开(公告)号：US4294539A
公开(公告)日：1981-10-13
申请号：US111059
申请日：1980-01-10
CPC分类号： G03B27/64
摘要： In a document handling system in which an apertured vacuum belt transports the documents to the imaging station of a copier and provides a light reflective background surface, the belt vacuum apertures are only within discrete limited areas of the belt and have a convoluted surface which holds the document spaced from the vacuum apertures and provides low impedance air flow under the document from the apertures, said areas being substantially enclosed by narrow border areas of unapertured and non-imageable pneumatic weirs at positions corresponding to the edges of conventional sizes of documents, which weirs are finely convoluted to have a much higher air flow impedance.
摘要翻译： 在文件处理系统中，有孔真空带将文件传送到复印机的成像站并提供光反射背景表面，带真空孔仅在带的离散限制区域内，并且具有卷曲表面，其保持 文件与真空孔间隔开，并且在文件下面从孔中提供低阻抗空气流，所述区域基本上被封闭的未压缩和不可成像气动堰的狭窄边界区域对应于常规尺寸的文件的边缘的位置，堰 被精细地卷曲以具有更高的空气流阻抗。
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