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公开(公告)号：US06332068B2
公开(公告)日：2001-12-18
申请号：US09740659
申请日：2000-12-18
IPC分类号： G03G1500
CPC分类号： B41J3/60 , G03G15/234
摘要： A modular duplex media handling system is installable for use with a print recording system having a simplex media handling system. During first side printing a media sheet is fed along a first media path in the simplex system from feed rollers to metering rollers and into a print zone. After first side printing and prior to releasing the media sheet, the metering rollers feed the media sheet back along the first media path to the feed rollers. The feed rollers in turn feed the media sheet completely into the duplex module where the media moves along a loop path (in effect flipping the media sheet). The media sheet then is fed back to the feed rollers and along the first media path for second side printing. A humidity sensor in the duplex module signals to the print recording system whether the duplex handling system is installed.
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公开(公告)号：US6042106A
公开(公告)日：2000-03-28
申请号：US141645
申请日：1998-08-27
申请人： Kieran B Kelly , Larry A Jackson
发明人： Kieran B Kelly , Larry A Jackson
CPC分类号： B65H29/70 , B65H29/44 , B65H2601/251
摘要： A sheet media handling system is provided for use in supporting a sheet ejected from a wet-ink hard copy apparatus output port while ink on a preceding sheet ink an output tray is allowed time to dry before depositing the succeeding on top thereof. The system employs a pair of guides having an elongate channel therebetween which receives a predetermined side edge of an ejected sheet. The channel bends the sheet in order to stiffen the sheet along its longitudinal axis such that only one edge need be supported. Once a trailing edge of an advancing sheet is ejected from the output port, a lower guide is retracted whereby the sheet falls under the force of gravity onto the output media stack in the output tray. Several advantageous lower guide upper surface constructs are disclosed. The advantages of the use of a guide mechanism on each side of the advancing output sheets is discussed.
摘要翻译： 提供了一种纸张介质处理系统，用于支持从湿式墨水硬拷贝装置输出端口排出的片材，同时在先前的片材墨水之前的墨水允许出口托盘在其后面的沉积之前进行干燥。 该系统采用一对引导件，它们之间具有细长的通道，该导向件容纳排出的片材的预定的侧边缘。 通道弯曲片材以便沿着其纵向轴线使片材变硬，使得仅需要支撑一个边缘。 一旦前进片材的后缘从输出端口排出，下引导件缩回，由此片材在重力作用下落到输出托盘中的输出介质堆叠上。 公开了几个有利的下导向上表面构造。 讨论了在推进输出板的每一侧使用导向机构的优点。
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3.发明授权Method and apparatus for monitoring channel performance on a channel using alternate mark inversion protocols 失效用于使用交替标记反转协议来监视信道上的信道性能的方法和装置
公开(公告)号：US5642391A
公开(公告)日：1997-06-24
申请号：US573448
申请日：1995-12-15
申请人： Lujack Ewell , Larry A. Jackson , Larry D. Bishop
发明人： Lujack Ewell , Larry A. Jackson , Larry D. Bishop
CPC分类号： H04L43/00 , H04L12/2602 , H04M3/303
摘要： A method and apparatus monitor the performance of a DDS loop connecting an information transmitter to an information receiver. The information transmitter is typically at a customer premises while the receiver is typically an OCU at the receiving local office. The DDS loop uses an alternate mark inversion communications protocol and the monitoring method and apparatus feature circuitry for determining a current imbalance on the DDS loop. The numbers of positive and negative pulses on the line are individually counted and if the count of the two counters used deviates either positively or negatively from each other by specified amounts, an error event is declared. If the error events meet a statistical timing criterion, a channel error is declared and appropriate steps are undertaken to prevent signals coming from the channel from interfering with other signals available at the local office.
摘要翻译： 一种方法和装置监视将信息发射机连接到信息接收机的DDS环路的性能。 信息发送器通常在客户端，而接收机通常是接收本地局的OCU。 DDS循环使用替代标记反转通信协议和监视方法和装置特征电路来确定DDS循环上的当前不平衡。 线上的正脉冲和负脉冲的数量被单独计数，如果两个计数器的计数相互偏移指定的量，则声明错误事件。 如果错误事件符合统计时间标准，则声明信道错误，并采取适当的步骤，以防止信道来自信道干扰本地办事处可用的其他信号。
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公开(公告)号：US4907018A
公开(公告)日：1990-03-06
申请号：US275159
申请日：1988-11-21
CPC分类号： B41J2/1752 , B41J2/1753 , B41J25/34
摘要： A printhead cartridge and carriage assembly (10) is provided comprising: a carriage (12); a snap-spring (62) for securing a printing cartridge (14) in postion on the carriage; and an interconnect strip (16) for supplying electrical signals to the cartridge, including a force loading spring pad (24) for urging a portion of the interconnect strip against a portion of the cartridge. The cartridge has top (32), bottom (34), sides (36, 38), front (40) and rear (42) surfaces and includes a printhead (44) on the bottom surface, an electrical contact strip (46) on the back surface connected to the printhead, referencing pads (56) on the side surface, and a lip (64) on the back surface for accepting the snap-spring. Referencing surface (60) are provided for receiving the referencing pads on the cartridge. The spring pad urges the interconnect strip against the electrical contact of the cartridge. The printhead cartridge/carriage assembly of the invention requires only one hand of the operator to both insert and lock the cartridge in position. Further, the cartridge/carriage assembly provides simultaneous alignment of the printhead in the X, Y, and Z directions. Finally, contact between the printhead and the interconnect strip is reliably made each time the cartridge is inserted and locked in position, thereby ensuring proper nozzle firing each time.
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公开(公告)号：US4843338A
公开(公告)日：1989-06-27
申请号：US113035
申请日：1987-10-23
IPC分类号： B41J15/04 , B41J2/01 , B41J11/00 , B41J11/20 , B41J13/10 , B41J13/28 , B41J25/304 , B41J25/34 , G06K15/10
CPC分类号： B41J11/005 , B41J11/20 , B41J13/28
摘要： Several problems of alignment associated with ink-jet printers are alleviated by four aspects. In the first, a reverse bow (B) in the paper (12) is created for printing on single sheets of paper. The reverse bow, which in the transverse axis of the paper, forces the paper flat against the platen (14) by using the paper's own stiffness.In the second aspect, the paper and the carriage (30) are referenced to the same part (the carriage guide (10)). In this configuration, the paper is urged against the underside of the carriage guide off of drive rollers (18), through the reverse bow, and onto the platen, where it is printed. The carriage is referenced to the carriage guide through a slider bump by means of a carriage shaft and gravity.The carraige guide comprises stiff thin sheet metal, which is closely-toleranced and has well-controlled dimensions. Thus, this part is good to reference to, rather than molded-in parts, which are not stiff enough at the required thickness. Straightness is also difficult to achieve at the required thickness with plastic parts.In the third aspect, the platen is allowed to move substantially perpendicular to the plane of the paper to accommodate thicker print media.In the fourth aspect, the platen is maintained a minimum fixed distance from the carriage guide by bumps (38) to ensure that the paper is not pinched between the carriage guide and the platen.
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公开(公告)号：US4748637A
公开(公告)日：1988-05-31
申请号：US802828
申请日：1985-11-29
申请人： Larry D. Bishop , Larry A. Jackson
发明人： Larry D. Bishop , Larry A. Jackson
IPC分类号： H04J3/06 , H04J3/16 , H04L1/24 , H04L12/52 , H04L25/24 , H04L25/49 , H04Q11/04 , H04B1/38 , H04L5/16
CPC分类号： H04L25/242 , H04J3/0685 , H04J3/1647 , H04L1/243 , H04L12/525 , H04L25/4925 , H04Q11/04 , H04Q11/0442
摘要： A digital subscriber loop termination device, such as an office channel unit, dataport unit, digital data bank unit or the like, employs a microprocessor for providing data transfer between customer lines and network lines operating at respective different data transmission rates. The microprocessor circuit responds to network sync pulses for providing transfer of network input bytes to customer output generators and for providing for transfer of customer input bytes to network output serial generators. Additionally, the circuit includes facilities for enabling operation at different customer rates.
摘要翻译： 诸如办公室信道单元，数据端口单元，数字数据库单元等的数字用户环路终端设备使用微处理器来在客户线路和以各自的不同数据传输速率工作的网络线路之间提供数据传输。 微处理器电路响应于网络同步脉冲，用于向客户输出发生器提供网络输入字节传输，并提供将客户输入字节传送到网络输出串行发生器。 另外，该电路包括能够以不同的客户价格进行操作的设施。
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公开(公告)号：US6167231A
公开(公告)日：2000-12-26
申请号：US283107
申请日：1999-03-31
CPC分类号： B41J3/60 , G03G15/234
摘要： A modular duplex media handling system is installable for use with a print recording system having a simplex media handling system. During first side printing a media sheet is fed along a first media path in the simplex system from feed rollers to metering rollers and into a print zone. After first side printing and prior to releasing the media sheet, the metering rollers feed the media sheet back along the first media path to the feed rollers. The feed rollers in turn feed the media sheet completely into the duplex module where the media moves along a loop path (in effect flipping the media sheet). The media sheet then is fed back to the feed rollers and along the first media path for second side printing. A humidity sensor in the duplex module signals to the print recording system whether the duplex handling system is installed.
摘要翻译： 模块化双面介质处理系统可安装用于具有简单介质处理系统的打印记录系统。 在第一侧打印期间，介质片材沿着单面系统中的第一介质路径从进料辊进给到计量辊并进入打印区域。 在第一面打印之后并且在释放介质片之前，计量辊沿着第一介质路径将介质片材回送到进给辊。 进纸滚筒又将介质纸张完全进入双面模块，其中介质沿循环路径移动（实际上是翻转介质页）。 然后将介质片材反馈到进给辊和沿着第一介质路径进行第二侧打印。 双面模块中的湿度传感器向打印记录系统发送信号，指示双面处理系统是否安装。
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8.发明授权
公开(公告)号：US5737309A
公开(公告)日：1998-04-07
申请号：US556229
申请日：1995-11-09
申请人： Lujack Ewell , Randy Holzworth , Larry A. Jackson
发明人： Lujack Ewell , Randy Holzworth , Larry A. Jackson
CPC分类号： H04J3/0602 , H04J3/125 , H04L5/20
摘要： A method and apparatus for effecting a digital communications in a tandem cross-connect of an intermediate station in a telephone system communications network to enable synchronization of the digital signals coupled between ports of the cross-connect. The method and apparatus provide center-tapped transformers at each port for coupling into the cross-connect, applying synchronizing signals to the center-tap of the transformer for raising and lowering the DC voltage of the transformer output cross-connect side without adversely affecting the signals being transmitted across the transformer coupled network, and processing received signals to identify and synchronize to repeating protocol patterns. In particular, the invention employs photo-optically coupling to the transformers to maintain electrical isolation of the synchronizing elements of the circuitry and employing the circuitry in particular in connection with synchronizing to the A and B signalling bits of a T1 protocol.
摘要翻译： 一种用于在电话系统通信网络中的中间站的串联交叉连接中实现数字通信的方法和装置，以实现交叉连接端口之间耦合的数字信号的同步。 该方法和装置在每个端口处提供用于耦合到交叉连接中的中心抽头变压器，将同步信号施加到变压器的中心抽头以升高和降低变压器输出交叉连接侧的直流电压，而不会不利地影响 信号通过变压器耦合网络传输，并且处理接收的信号以识别并同步到重复的协议模式。 特别地，本发明采用光电耦合到变压器，以保持电路的同步元件的电隔离，并且特别地结合与T1协议的A和B信令位同步的电路。
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公开(公告)号：US5527123A
公开(公告)日：1996-06-18
申请号：US396801
申请日：1995-02-28
CPC分类号： B41J11/005 , B41J13/14
摘要： Described herein is a printer having a printhead which traverses laterally across a sheetlike print medium and which thereby defines a laterally-extending print zone across the print medium. A paper transport mechanism in the printer has drive rollers and associated pinch wheels to drive the print medium through the printer's print zone. The paper transport mechanism further includes an upper print media guide and a lower print medium guide. The two print medium guides are shaped at their transverse ends to bow the transverse edges of the print medium downwardly to reduce its tendency to buckle upwardly into the printhead. In order to fit the upper print medium guide into the limited available space above the drive rollers, it is made of a lower molded portion for paper contact and an upper backing portion for rigidity. A pinch finger extends toward the printer's print zone beyond the pinch wheels to establish a pinch point against the drive roller in near proximity to the print zone.
摘要翻译： 这里描述的是具有打印头的打印机，该打印头横向穿过片状的打印介质，从而限定横穿打印介质的横向延伸的打印区域。 打印机中的纸张传送机构具有驱动辊和相关的夹送轮，以通过打印机的打印区驱动打印介质。 纸张传送机构还包括上打印介质引导件和下打印介质引导件。 两个打印介质引导件在其横向端部成形，以向下弯曲打印介质的横向边缘，以减少其向上压入打印头的趋势。 为了将上部打印介质引导件装配到驱动辊上方的有限可用空间中，其由用于纸张接触的下部模制部分和用于刚性的上部背衬部分制成。 夹紧手指朝向打印机的打印区域延伸超过夹紧轮，以在靠近打印区域的位置建立靠近驱动辊的夹点。
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公开(公告)号：US4728963A
公开(公告)日：1988-03-01
申请号：US24278
申请日：1987-03-11
IPC分类号： B41J2/01 , B41J11/00 , B41J13/00 , B41J13/02 , B41J13/10 , B65H3/00 , B65H29/26 , G01D9/00 , B65H31/00 , G01D15/24
CPC分类号： B65H3/00 , B41J13/0045 , B41J13/106 , B65H29/26
摘要： A novel ink-jet printer (10) is provided. The printer provides both paper supply tray (12) and paper collection tray (18) in the front (14) of the printer for ease of paper handling and reduced footprint. The paper collection tray is provided with a pair of opposed output rails (22) which support a sheet of paper (16c) during printing to permit ink on a sheet of paper (16b) previously printed to dry.A paper handling mechanism is provided which eliminates a sheet pickup motor and associated elements. The paper handling mechanism is configured to pick off a sheet of paper from a stack of input paper, bring it around paper drive rollers (24) onto a platen (26), where the printing operation, employing a printhead cartridge (32) occurs.The resulting printer is easy to manufacture, has reduced complexity by eliminating components in the paper drive mechanism and is lower in cost.
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