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1. 发明授权

US08824929B2 Method for increasing useful life of an image forming apparatus 有权
标题翻译：提高成像装置使用寿命的方法
公开(公告)号：US08824929B2
公开(公告)日：2014-09-02
申请号：US12838564
申请日：2010-07-19
申请人： Alan Stirling Campbell , David Brian Langer , Peter Brown Pickett , David Anthony Schneider
发明人： Alan Stirling Campbell , David Brian Langer , Peter Brown Pickett , David Anthony Schneider
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G15/0121 , G03G15/0194 , G03G2215/0132
摘要： An image forming apparatus includes a plurality of photoconductive drums, each photoconductive drum transferring a portion of a toner image to an intermediate transfer member. The photoconductive drums are individually rotated to a printing speed such that a downstream photoconductive drum starts rotating prior to an adjacent upstream photoconductive drum starts image transfer. Similarly, an upstream photoconductive drum starts deceleration when its following downstream station has transferred image.
摘要翻译：图像形成装置包括多个感光鼓，每个感光鼓将调色剂图像的一部分转印到中间转印部件。感光鼓被单独旋转到打印速度，使得下游感光鼓在相邻的上游感光鼓开始图像转印之前开始旋转。类似地，当其下游的下游站传送图像时，上游感光鼓开始减速。

2. 发明申请

US20110293327A1 Method for Increasing Useful Life of an Image Forming Apparatus 有权
标题翻译：增加图像形成装置的使用寿命的方法
公开(公告)号：US20110293327A1
公开(公告)日：2011-12-01
申请号：US12838564
申请日：2010-07-19
申请人： Alan Stirling Campbell , David Brian Langer , Peter Brown Pickett , David Anthony Schneider
发明人： Alan Stirling Campbell , David Brian Langer , Peter Brown Pickett , David Anthony Schneider
IPC分类号： G03G15/00
CPC分类号： G03G15/5008 , G03G15/0121 , G03G15/0194 , G03G2215/0132
摘要： An image forming apparatus includes a plurality of photoconductive drums, each photoconductive drum transferring a portion of a toner image to an intermediate transfer member. The photoconductive drums are individually rotated to a printing speed such that a downstream photoconductive drum starts rotating prior to an adjacent upstream photoconductive drum starts image transfer. Similarly, an upstream photoconductive drum starts deceleration when its following downstream station has transferred image.
摘要翻译：图像形成装置包括多个感光鼓，每个感光鼓将调色剂图像的一部分转印到中间转印部件。感光鼓被单独旋转到打印速度，使得下游感光鼓在相邻的上游感光鼓开始图像转印之前开始旋转。类似地，当其下游的下游站传送图像时，上游感光鼓开始减速。

3. 发明授权

US5864355A Image forming apparatus with laser calibration during ramp-up period of an optical device 失效
标题翻译：在光学装置的上升期间具有激光校准的图像形成装置
公开(公告)号：US5864355A
公开(公告)日：1999-01-26
申请号：US821595
申请日：1997-03-20
申请人： Craig Palmer Bush , Cyrus Bradford Clarke , David Brian Langer , Phillip Byron Wright
发明人： Craig Palmer Bush , Cyrus Bradford Clarke , David Brian Langer , Phillip Byron Wright
IPC分类号： B41J2/47 , G06K15/12 , H04N1/40 , G01D9/42
CPC分类号： G06K15/1209 , B41J2/471 , H04N1/40037 , G03G15/0435 , G03G2215/025 , G03G2215/0402
摘要： The invention is directed to a method of calibrating a laser in an electrophotographic image forming apparatus used for producing a print image on a print medium. A laser having a selectively energizable laser beam output is provided. A rotatable optical device and the laser combine to define a movable projection path of the laser beam output. Rotation of the optical device results in movement of the projection path across a scan line overlaying a photoconductive drum. The optical device has a rotational acceleration upon initial rotation thereof with a ramp-up period during which the rotational velocity increases. A safe area is established in a portion of the scan line which does not overlay an image area on the photoconductive drum. The laser is energized and calibrated when the projection path is positioned in the safe area. The calibration is carried out during the ramp-up period of the rotating optical device.
摘要翻译：本发明涉及一种用于在用于在打印介质上产生打印图像的电子照相图像形成装置中校准激光的方法。提供具有选择性激励激光束输出的激光器。可旋转光学装置和激光器组合以限定激光束输出的可移动投影路径。光学装置的旋转导致投影路径跨越覆盖感光鼓的扫描线的移动。光学装置在初始旋转时具有旋转加速度，其中旋转速度增加的斜坡上升期间。在扫描线的一部分上建立安全区域，该区域不覆盖感光鼓上的图像区域。当投影路径位于安全区域时，激光器通电并进行校准。在旋转光学装置的上升期间进行校准。

4. 发明授权

US06028675A Transmission error detection system and method for imaging systems including printers with intelligent options 失效
标题翻译：包括具有智能选项的打印机的成像系统的传输错误检测系统和方法
公开(公告)号：US06028675A
公开(公告)日：2000-02-22
申请号：US969240
申请日：1997-11-13
申请人： Thomas Austin Fields , David Brian Langer , Steven Wayne Parish
发明人： Thomas Austin Fields , David Brian Langer , Steven Wayne Parish
IPC分类号： B41J29/38 , G06F3/12 , G06K15/00 , G03G15/00
CPC分类号： G06K15/00
摘要： A print system includes a printer having a printer controller. One or more optional support devices are associated with the printer, wherein each optional support device includes a device controller. The system further includes a bi-directional serial communications path, including one or more trunklines, which provides serial electrical interconnection between the printer controller and each device controller of each optional support device of the system. The printer controller automatically assigns a unique device address to each optional support device. Transmission error detection system and method are provided at the printer controller and/or each optional support device.
摘要翻译：打印系统包括具有打印机控制器的打印机。一个或多个可选的支持设备与打印机相关联，其中每个可选支持设备包括设备控制器。该系统还包括双向串行通信路径，其包括一个或多个中继线，其提供打印机控制器与系统的每个可选支持装置的每个设备控制器之间的串行电互连。打印机控制器自动为每个可选支持设备分配唯一的设备地址。在打印机控制器和/或每个可选支持装置处提供传输错误检测系统和方法。

5. 发明授权

US06614545B1 Communication scheme for imaging systems including printers with intelligent options 失效
标题翻译：成像系统的通信方案，包括具有智能选项的打印机
公开(公告)号：US06614545B1
公开(公告)日：2003-09-02
申请号：US08853767
申请日：1997-05-09
申请人： David Brian Langer , Steven Wayne Parish , Edward Carlton Sharp
发明人： David Brian Langer , Steven Wayne Parish , Edward Carlton Sharp
IPC分类号： G06F1300
CPC分类号： G06K15/00
摘要： A print system comprises a printer including a printer controller. One or more optional support devices are associated with the printer, wherein each optional support device includes a device controller. The system further includes a bi-directional serial communications path, including one or more trunklines, which provides serial electrical interconnection between the printer controller and each device controller of each optional support device of the system. The printer controller automatically assigns a unique device address to each optional support device. Each optional support device further includes logic circuitry which, based upon a command of the printer controller, enables passage of information generated by the printer controller through a first optional support device to a next electrically serially connected optional support device following an assignment of a first device address to the first optional support device.
摘要翻译：打印系统包括包括打印机控制器的打印机。一个或多个可选的支持设备与打印机相关联，其中每个可选支持设备包括设备控制器。该系统还包括双向串行通信路径，其包括一个或多个中继线，其提供打印机控制器与系统的每个可选支持装置的每个设备控制器之间的串行电互连。打印机控制器自动为每个可选支持设备分配唯一的设备地址。每个可选支持装置还包括逻辑电路，该逻辑电路基于打印机控制器的命令，使第一装置的分配之后能够将由打印机控制器产生的信息通过第一可选支持装置传递到下一个电串联连接的可选支持装置地址到第一个可选支持设备。

6. 发明授权

US06450611B1 Ink jet swath prediction method 有权
标题翻译：喷墨条预测法
公开(公告)号：US06450611B1
公开(公告)日：2002-09-17
申请号：US09783572
申请日：2001-02-14
申请人： Martin Joseph Brown, Jr. , Cuong Manh Hoang , David Brian Langer , David William Murphy , Gary Scott Overall , Martin Geoffrey Rivers , Ronald Todd Sellers , Bryan Scott Willett
发明人： Martin Joseph Brown, Jr. , Cuong Manh Hoang , David Brian Langer , David William Murphy , Gary Scott Overall , Martin Geoffrey Rivers , Ronald Todd Sellers , Bryan Scott Willett
IPC分类号： B41J2300
CPC分类号： B41J19/14 , G06K15/102 , G06K15/16 , G06K2215/0077
摘要： A method of positioning an ink jet printhead in a printer includes dividing a bitmap into a plurality of rows of tiles. A subset of the rows of tiles to be printed in a next pass of the printhead is identified. Printable ones of the tiles in the subset of rows are identified. The printable tiles contain printable data. Within each printable tile, a top most location of the printable data and at least one of a left most location of the printable data and a right most location of the printable data are identified. A print medium is advanced in a feed direction until a portion of the print medium corresponding with the top most location of the printable data of at least one printable tile is substantially aligned with a top nozzle of the printhead. The printhead is moved, in a scan direction, directly to a position on the print medium corresponding to one of the left most location of the printable data of at least one printable tile and the right most location of the printable data of at least one printable tile.
摘要翻译：将喷墨打印头定位在打印机中的方法包括将位图划分成多行瓦片。识别在打印头的下次通过中要打印的瓦片的一行的子集。识别行子集中的可打印的瓦片。可打印瓦片包含可打印数据。在每个可打印的瓦片内，识别可打印数据的最大位置以及可打印数据的最左侧位置和可打印数据的最右边位置中的至少一个。打印介质沿进给方向前进，直到与至少一个可打印瓦片的可打印数据的最高位置对应的打印介质的一部分基本上与打印头的顶部喷嘴对准。打印头在扫描方向上直接移动到与至少一个可打印瓦片的可打印数据的最左侧位置之一相对应的打印介质上的位置，以及至少一个可打印瓦片的可打印数据的最右边位置瓦。

7. 发明授权

US5893923A Microcontroller utilizing a circuit to select during reset process an internal or external memory as base memory 失效
标题翻译：利用电路在复位期间选择内部或外部存储器作为基础存储器的微控制器
公开(公告)号：US5893923A
公开(公告)日：1999-04-13
申请号：US854611
申请日：1997-05-12
申请人： Craig Palmer Bush , David Brian Langer
发明人： Craig Palmer Bush , David Brian Langer
IPC分类号： G05B15/02 , G06F1/24 , G06F12/06 , G06F13/16 , G06F15/78 , G06F13/00
CPC分类号： G06F15/7814
摘要： A circuit for selecting a base memory to be accessed by a microcontroller in response to a command from the microcontroller. An input receives the command from the microcontroller. The command selectively instructs the circuit to reset the microcontroller and signal the microcontroller to access an internal memory as the base memory. Also, the command selectively instructs the circuit to reset the microcontroller and signal the microcontroller to access an external memory as the base memory. A reset output is used to send the reset signal to the microcontroller, and a memory select output is used to send a memory select signal to the microcontroller. A logic circuit processes the command received from the microcontroller, and selectively sends an internal base memory select signal on the memory select output in response to the command received from the microcontroller, while the reset signal is being processed by the microcontroller, and selectively sends an external base memory select signal on the memory select output in response to the command received from the microcontroller while the reset signal is being processed by the microcontroller.
摘要翻译：用于响应于来自微控制器的命令，选择要由微控制器访问的基本存储器的电路。输入接收来自微控制器的命令。该命令有选择地指示电路复位微控制器并发出信号以使微控制器访问作为基础存储器的内部存储器。此外，该命令选择性地指示电路复位微控制器并且发送信号以使微控制器访问外部存储器作为基础存储器。复位输出用于将复位信号发送到微控制器，并且存储器选择输出用于向微控制器发送存储器选择信号。逻辑电路处理从微控制器接收到的命令，并且响应于从微控制器接收到的命令，选择性地在存储器选择输出上发送内部基本存储器选择信号，同时微控制器正在处理复位信号，并且选择性地发送当微控制器正在处理复位信号时，响应于从微控制器接收的命令，存储器选择输出上的外部基本存储器选择信号。

8. 发明授权

US5688059A Registration of paper location for multiple printing 失效
标题翻译：纸张位置注册多次打印
公开(公告)号：US5688059A
公开(公告)日：1997-11-18
申请号：US717392
申请日：1996-09-20
申请人： Cyrus Bradford Clarke , David Brian Langer , Randall David Mayo , Gregory John Sherwood
发明人： Cyrus Bradford Clarke , David Brian Langer , Randall David Mayo , Gregory John Sherwood
IPC分类号： B41J2/01 , B41J2/44 , B41J11/42 , B41J13/00 , B41J13/26 , G03G15/00 , G03G21/14
CPC分类号： B41J13/26
摘要： A laser printer (3) can initiate a line of printing only when the sweep of the laser light reaches a point in its cycle. An inkjet printer (5) moves paper by stepper motor in increments. Switch (9) senses the paper (15) to determine the location of paper in path (6) with respect to nominal printing locations of the laser printer. The closest nominal position is selected for printing. The paper may lead or lag the selected position. Switch (11) senses the paper to determine the location of paper in the path with respect to nominal printing locations of the inkjet printer. Two leads are added to reach a net greater lead, a lag is subtracted from a lead, and two lags are added to reach a net greater lag. The closest nominal position is then selected. This assures that registration does not vary by more than one half of the spacing between nominal locations of the second printer.
摘要翻译：激光打印机（3）只有当激光的扫描到达其循环中的一点时，才能启动一行打印。喷墨打印机（5）通过步进电机逐步移动纸张。开关（9）感测纸张（15）以确定相对于激光打印机的标称打印位置的路径（6）中的纸张的位置。选择最接近的标称位置进行打印。纸张可能导致或滞后于所选位置。开关（11）感测纸张以确定相对于喷墨打印机的标称打印位置的纸张在路径中的位置。增加两个线索以达到净更大的领先优势，从潜在客户中减去滞后，并添加两个滞后以达到净更大的滞后。然后选择最接近的标称位置。这确保了注册不会超过第二台打印机的标称位置间距的一半以上。

9. 发明授权

US6072585A Method and apparatus for managing the power consumption of a printer 失效
标题翻译：用于管理打印机的功耗的方法和装置
公开(公告)号：US6072585A
公开(公告)日：2000-06-06
申请号：US989534
申请日：1997-12-12
申请人： Todd Alan Dutton , David Brian Langer , Jeffrey Thomas Hines , Steven Wayne Parish , Phillip Byron Wright
发明人： Todd Alan Dutton , David Brian Langer , Jeffrey Thomas Hines , Steven Wayne Parish , Phillip Byron Wright
IPC分类号： B41J29/393 , G03G15/00 , G06K15/16
CPC分类号： G03G15/5004 , B41J29/393 , G03G15/65 , G06K15/16
摘要： An improved printer is provided which includes a print engine control program that minimizes the power consumption of the paper-handling devices to allow for a smaller DC power supply. Some of the paper-handling devices are input paper trays, output paper stackers, and a duplexer, which all preferably contain a microcontroller and an individual electric motor drive. The base printer also contains a microcontroller in the print engine that controls the printer's mechanisms and various subassemblies that are used in the laser electrophotographic printing process. To maintain control of the entire paper path, the print engine sends commands to the paper-handling devices, and these devices send responses to these commands. Most of the printer's paper-handling devices receive their electrical power entirely from the base printer, which is supplied as a DC voltage. The print engine avoids the concurrent running of subsystems in cases where the functionality of the printer is not compromised. These subsystems are instead run sequentially, so their power demands do not overlap, thereby providing a reduced overall power consumption requirement that is being supplied by the printer's DC power supply. Another aspect of the present invention allows the printer to command either all or only certain individual paper-handling devices to place themselves into a "power saver" mode.
摘要翻译：提供了一种改进的打印机，其包括打印引擎控制程序，其最小化纸张处理装置的功率消耗以允许更小的DC电源。一些纸张处理装置是输入纸盘，输出纸堆叠器和双工器，其优选地包含微控制器和单独的电动机驱动器。基本打印机还包含打印引擎中的微控制器，其控制打印机的机构和用于激光电子照相印刷过程的各种子组件。为了保持整个纸张路径的控制，打印引擎向纸张处理设备发送命令，并且这些设备发送对这些命令的响应。大多数打印机的纸张处理设备完全从基本打印机接收电力，基本打印机以直流电压供电。在打印机的功能不受影响的情况下，打印引擎避免子系统的并发运行。这些子系统依次运行，因此其功率需求不重叠，从而提供由打印机的直流电源提供的整体功耗要求。本发明的另一方面允许打印机命令全部或仅某些单独的纸张处理装置将自己置于“节电”模式。

10. 发明授权

US5877798A Method and apparatus for automatically determining the style printhead installed in a laser printer 失效
标题翻译：用于自动确定安装在激光打印机中的样式打印头的方法和装置
公开(公告)号：US5877798A
公开(公告)日：1999-03-02
申请号：US821832
申请日：1997-03-21
申请人： Cyrus Bradford Clarke , David Brian Langer , Phillip Byron Wright
发明人： Cyrus Bradford Clarke , David Brian Langer , Phillip Byron Wright
IPC分类号： B41J2/44 , B41J2/47 , G02B26/10 , G06K15/12 , B41J2/235
CPC分类号： B41J2/471 , G06K15/1204 , B41J2202/17
摘要： A laser printer is provided having an automatic printhead identification system for use in a family of laser printers that are compatible with more than one model of printhead. For example, a single laser printer model can be made so that two different printheads can be successfully used, so long as the printer system knows which laser printhead has actually been installed. To detect which printhead has been installed, the printer operating system provides a reference clock signal having a pre-determined frequency, which dictates the rotational speed of the motor. Once the motor has achieved a "lock" operational speed, the printer measures the scan rate of the faceted mirror by detecting the time interval between pulses of the "HSYNC" signal. The HSYNC signal is sent to a "divide-by-n counter" circuit which divides the pulse frequency of the HSYNC signal, thereby increasing the time interval (by a factor of "n") that must be sensed by the system to determine which printhead is in fact installed. So long as the HSYNC "lock" frequency is different between the various models of printheads that are compatible with a particular model laser printer, the principles of the invention can be used without adding any extra hardware sensors, signals, or memory addresses and detecting codes.
摘要翻译：提供了一种具有自动打印头识别系统的激光打印机，用于与多于一种型号的打印头兼容的激光打印机系列。例如，只要打印机系统知道实际安装了哪个激光打印头，就可以制造单个激光打印机型号，使得可以成功地使用两个不同的打印头。为了检测哪个打印头已被安装，打印机操作系统提供具有预定频率的参考时钟信号，其指示电动机的转速。一旦电机达到“锁定”运行速度，打印机通过检测“HSYNC”信号脉冲之间的时间间隔来测量刻面镜的扫描速率。 HSYNC信号被发送到划分HSYNC信号的脉冲频率的“除以n计数器”电路，从而增加系统必须感测到的时间间隔（乘以“n”的因子），以确定哪个打印头其实是安装的。只要HSYNC“锁定”频率在与特定型号的激光打印机兼容的各种型号的打印头之间是不同的，则可以使用本发明的原理而不添加任何额外的硬件传感器，信号或存储器地址和检测代码。

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