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1. 发明授权

US08297612B2 Apparatus for detecting media edges in a media input tray 有权
标题翻译：用于检测介质输入托盘中的介质边缘的设备
公开(公告)号：US08297612B2
公开(公告)日：2012-10-30
申请号：US12816139
申请日：2010-06-15
申请人： Danny Keith Chapman , Richard Winston Thomas
发明人： Danny Keith Chapman , Richard Winston Thomas
IPC分类号： B65H1/18 , B65H7/08
CPC分类号： B65H3/0684 , B65H7/12 , B65H2511/51 , B65H2511/524 , B65H2513/53 , B65H2220/02 , B65H2220/03 , B65H2220/01
摘要： A media picking device for an image forming apparatus having a sensing mechanism for detecting the leading and trailing edge of a sheet of media being picked from a media input tray. The device includes a pick mechanism for picking the top-most media sheet; and a sensing mechanism including a sensor and a flag positioned adjacent the pick tire and moveable between at least two positions, the flag having a first end contacting the surface of a picked sheet; the flag moving from a first position to a second position when the leading edge of the picked sheet passes by and moving from the second position to the first position when the trailing edge of the picked sheet passes by. The sensing mechanism providing an output signal corresponding to the movement of the flag. The sensor is one of a photointerrupter, a proximity sensor, a potentiometer, and a switch.
摘要翻译：一种用于图像形成装置的介质拾取装置，具有用于检测从介质输入托盘拾取的介质片的前缘和后缘的感测机构。该装置包括用于拾取最上面的介质片的拾取机构; 以及感测机构，其包括传感器和位于所述拾取轮胎附近的标志，并且可在至少两个位置之间移动，所述标志具有接触所拾取的片材的表面的第一端; 当所拾取的纸张的前缘经过并且当所拾取的纸张的后缘经过时，该标志从第一位置移动到第二位置，并且从第二位置移动到第一位置。感测机构提供对应于标志的移动的输出信号。传感器是光断续器，接近传感器，电位器和开关之一。

2. 发明申请

US20110304093A1 Apparatus for Detecting Media Edges in a Media Input Tray 有权
标题翻译：用于检测介质输入盘中的介质边缘的装置
公开(公告)号：US20110304093A1
公开(公告)日：2011-12-15
申请号：US12816139
申请日：2010-06-15
申请人： Danny Keith Chapman , Richard Winston Thomas
发明人： Danny Keith Chapman , Richard Winston Thomas
IPC分类号： B65H3/06
CPC分类号： B65H3/0684 , B65H7/12 , B65H2511/51 , B65H2511/524 , B65H2513/53 , B65H2220/02 , B65H2220/03 , B65H2220/01
摘要： A media picking device for an image forming apparatus having a sensing mechanism for detecting the leading and trailing edge of a sheet of media being picked while in a media input tray. The device comprises an arm rotatably positioned to engage a stack of media sheets in a media input tray, a pick shaft rotatably connected to one end of the arm; a pick tire disposed on the pick shaft for contacting and picking the top-most media sheet; and a sensing mechanism comprising a sensor and a flag positioned adjacent the pick tire and moveable between at least two positions, the flag having a first end for contacting the surface of a media sheet being picked; the flag moving from a first position to a second position when the leading edge of the media sheet being picked passes by and moving from the second position to the first position when the trailing edge of the media sheet being picked passes by, wherein the sensor senses the movement of the flag when the flag moves between the first and second positions with the sensing mechanism providing an output signal corresponding to the movement of the flag. The sensor is one of a photointerrupter, a proximity sensor, a potentiometer, and a switch.
摘要翻译：一种用于图像形成装置的介质拾取装置，具有用于检测在介质输入托盘中被拾取的介质片的前缘和后缘的感测机构。该装置包括可旋转地定位成接合介质输入托盘中的介质片堆叠的臂，可旋转地连接到臂的一端的拾取轴; 设置在拾取轴上用于接触和拾取最上面的介质片的拾取轮胎; 以及感测机构，其包括传感器和邻近所述拾取轮胎定位并且可在至少两个位置之间移动的标志，所述标志具有用于接触被拾取的介质片的表面的第一端; 当被拾取的介质片的前缘通过并且当被拾取的介质片的后缘通过时从第二位置移动到第一位置时，标记从第一位置移动到第二位置，其中传感器感测当标志在第一和第二位置之间移动时，标志的移动，感测机构提供与标志的移动相对应的输出信号。传感器是光断续器，接近传感器，电位器和开关之一。

3. 发明授权

US07613407B2 Method and apparatus to detect loads associated with one of a plurality of components driven by a shared motor in an image forming apparatus 有权
标题翻译：检测与图像形成装置中由共享电动机驱动的多个部件中的一个相关联的负载的方法和装置
公开(公告)号：US07613407B2
公开(公告)日：2009-11-03
申请号：US11383266
申请日：2006-05-15
申请人： Michael William Craig , Steven Michael Turney , Danny Keith Chapman
发明人： Michael William Craig , Steven Michael Turney , Danny Keith Chapman
IPC分类号： G03G21/12
CPC分类号： G03G21/12 , G03G21/105 , G03G2215/0685 , G03G2215/0888 , G03G2221/1624
摘要： An image forming apparatus includes a waste toner system that collects waste toner in a waste toner container. An amount of waste toner collected in the container is increased by using a driven toner distributing member that distributes accumulated toner within the container. The toner distributing member may be driven by a shared speed-controlled motor that further drives an image forming process member. The waste toner system may detect the accumulation of waste toner by monitoring a drive control circuit while the toner distributing member is being driven. For example, a logic circuit may detect the accumulation of waste toner based on monitoring a predetermined frequency of interest of a frequency domain transform of a motor control signal, the frequency of interest associated with the shared motor driving the toner distributing member.
摘要翻译：图像形成装置包括在废调色剂容器中收集废调色剂的废调色剂系统。通过使用将累积的调色剂分配在容器内的驱动调色剂分配构件来增加收集在容器中的废调色剂的量。调色剂分配构件可以由进一步驱动图像形成处理构件的共享速度控制电动机驱动。废调色剂系统可以通过在驱动调色剂分配构件的同时监视驱动控制电路来检测废调色剂的积聚。例如，逻辑电路可以基于监视与驱动调色剂分配构件的共享电动机相关联的电动机控制信号的频域变换的预定频率感测来检测废调色剂的累积。

4. 发明授权

US07245103B2 Motor speed and position control 有权
标题翻译：电机转速和位置控制
公开(公告)号：US07245103B2
公开(公告)日：2007-07-17
申请号：US10378430
申请日：2003-03-03
申请人： Danny Keith Chapman , Steven Michael Turney
发明人： Danny Keith Chapman , Steven Michael Turney
IPC分类号： G05D13/00
CPC分类号： H02P6/185
摘要： A method of controlling the speed and position of a motor includes receiving a pulse train indicative of the speed of the motor, and a periodic signal at a frequency greater than the pulse train. The number of cycles of the periodic signal per cycle of the pulse train is counted, and compared to a predetermined number. The speed of the motor is adjusted to match the count to the predetermined number, thus effecting speed control. A command position signal defining a plurality of sampling points is generated. The number of cycles of the periodic signal between a sampling point of the command position signal and an operative edge of the pulse train is counted and compared to a predetermined number. The speed of the motor is further adjusted to match the count to the predetermined number, thus effecting position control.
摘要翻译：控制电动机的速度和位置的方法包括：接收表示电动机速度的脉冲串，以及频率大于脉冲串的周期信号。对脉冲序列的每个周期的周期信号的周期数进行计数，并将其与预定数量进行比较。调整电动机的速度以将计数与预定数量相匹配，从而实现速度控制。产生定义多个采样点的指令位置信号。对命令位置信号的采样点和脉冲串的操作边缘之间的周期信号的周期数进行计数，并与预定数进行比较。进一步调整电动机的速度以将计数与预定数相匹配，从而进行位置控制。

5. 发明授权

US07205738B2 Method and apparatus for time-based dc motor commutation 有权
标题翻译：基于时间的直流电机换向的方法和装置
公开(公告)号：US07205738B2
公开(公告)日：2007-04-17
申请号：US10808101
申请日：2004-03-24
申请人： Danny Keith Chapman , Thomas Austin Fields , Steven Michael Turney
发明人： Danny Keith Chapman , Thomas Austin Fields , Steven Michael Turney
IPC分类号： H01R39/46 , H02K13/00 , H02P25/12
CPC分类号： H02P6/14
摘要： A motor control circuit uses a stored commutation table to effect time-based commutation of a brushless dc motor. Each entry in the commutation table defines a motor winding commutation state, and an exemplary method of open-loop motor control based on the commutation table comprises commutating the motor based on sequentially selecting table entries at a desired selection rate. That is, motor speed is controlled precisely by controlling the sequential selection rate rather than by relying on feedback from the motor. However, motor feedback for closed-loop control may be used in some modes of operation. For example, the method may include closed-loop control or open-loop control depending on the motor speed range, and may transition from closed-loop to open-loop control.
摘要翻译：电动机控制电路使用存储的换向表来实现无刷直流电动机的基于时间的换向。换向表中的每个条目定义了电动机绕组换向状态，并且基于换向表的开环电动机控制的示例性方法包括基于以期望的选择速率顺序地选择表格条目来对电动机进行换向。也就是说，通过控制顺序选择速度而不是依靠来自电动机的反馈来精确地控制电动机速度。然而，用于闭环控制的电动机反馈可以在某些操作模式中使用。例如，该方法可以包括根据电动机速度范围的闭环控制或开环控制，并且可以从闭环转到开环控制。

6. 发明授权

US06330424B1 Method and apparatus for minimizing the open loop paper positional error in a control system for an electrophotographic printing apparatus 有权
标题翻译：用于最小化用于电子照相打印设备的控制系统中的开环纸位置误差的方法和装置
公开(公告)号：US06330424B1
公开(公告)日：2001-12-11
申请号：US09717716
申请日：2000-11-21
申请人： Danny Keith Chapman , Matthew Lowell McKay , Steven Michael Turney
发明人： Danny Keith Chapman , Matthew Lowell McKay , Steven Michael Turney
IPC分类号： G03G1500
CPC分类号： G03G15/1605 , B65H7/00 , B65H2511/20 , B65H2511/30 , B65H2511/33 , B65H2513/40 , B65H2553/51 , G03G15/6564 , G03G2215/0119 , B65H2220/03 , B65H2220/01 , B65H2220/11
摘要： A method of minimizing error in an estimate of a position of a sheet of print medium in an electrophotographic machine includes providing a transport system including a gearing system to drive a roll for moving the sheet of print medium along a print medium path. The gears are in constant mesh with each other and with an actuator. The electrophotographic machine is provided with a toner transfer point at which the toner can be transferred to the moving sheet of print medium. A sensor is placed at a set distance away from the transfer nip along the print medium path. This distance is approximately equal to an integer multiple of the resulting distance traveled by the medium during one revolution of the lowest frequency component of the transport system. The frequencies associated with all other components in the transport system, including the actuator and an encoder wheel, are designed to be an integer multiple of this lowest frequency. The gearing system is actuated with a rotating actuator such that the actuator rotates approximately an integer number of times during a corresponding rotation of the lowest frequency component. An encoder wheel is also used to provide feedback to a control algorithm. A position of the sheet of print medium is sensed with the sensor.
摘要翻译：在电子照相机中估计打印介质的位置的估计中的错误最小化的方法包括提供包括传动系统的传送系统，以驱动用于沿打印介质路径移动打印介质片的卷。齿轮彼此恒定啮合并具有致动器。电子照相机设置有调色剂转印点，调色剂可以在该转印点转印到打印介质的移动片上。传感器沿着打印介质路径被放置在远离转印辊隙的设定距离处。该距离近似等于由传送系统的最低频率分量的一圈内由介质行进的所得到的距离的整数倍。与传送系统中的所有其他部件（包括致动器和编码器轮）相关的频率被设计为该最低频率的整数倍。齿轮传动系统由旋转致动器致动，使得致动器在最低频率分量的相应旋转期间大约旋转一整数。编码器轮也用于向控制算法提供反馈。利用传感器感测打印介质片的位置。

7. 发明授权

US6102591A Method of speed control for imaging system including printers with intelligent options 有权
标题翻译：包括具有智能选项的打印机的成像系统的速度控制方法
公开(公告)号：US6102591A
公开(公告)日：2000-08-15
申请号：US375205
申请日：1999-08-16
申请人： Danny Keith Chapman , Steven Wayne Parish , Kevin Dean Schoedinger
发明人： Danny Keith Chapman , Steven Wayne Parish , Kevin Dean Schoedinger
IPC分类号： B41J11/42 , B41J11/44
CPC分类号： B41J11/42
摘要： A method of controlling a speed of a print medium through a printer includes the step of providing a print medium transport assembly with a range of print medium transport speeds between a minimum print medium transport speed and a maximum print medium transport speed. A print engine is provided with a print engine speed. The range of print medium transport speeds is divided into subranges of print medium transport speeds. A requested speed is provided to the print medium transport assembly which corresponds to the print engine speed. For each subrange, an acceleration profile control equation, a constant speed control equation, and a deceleration profile control equation is determined. The constant speed control equation is dependent upon the requested speed. One of the subranges of print medium transport speeds is identified which encompasses the requested speed. The print medium is transported through the print medium transport assembly according to the acceleration profile control equation, the constant speed control equation, and the deceleration profile control equation associated with the selected subrange.
摘要翻译：通过打印机控制打印介质的速度的方法包括以下步骤：向打印介质传送组件提供在最小打印介质传输速度和最大打印介质传输速度之间的一定范围的打印介质传送速度。打印引擎具有打印引擎速度。打印介质传送速度的范围被划分为打印介质传输速度的子范围。向与打印引擎速度对应的打印介质传送组件提供请求的速度。对于每个子范围，确定加速度曲线控制方程，恒速控制方程和减速曲线控制方程。恒速控制方程取决于要求的速度。标识打印介质传送速度的一个子范围，其中包含请求的速度。打印介质根据加速度曲线控制方程，恒速控制方程以及与所选择的子范围相关联的减速曲线控制方程，通过打印介质传送组件传送。

8. 发明授权

US07633256B2 Encoder eccentricity correction for motion control systems 有权
标题翻译：运动控制系统的编码器偏心校正
公开(公告)号：US07633256B2
公开(公告)日：2009-12-15
申请号：US11121576
申请日：2005-05-04
申请人： Brian Anthony Reichert , Steven Michael Turney , Danny Keith Chapman , Thomas Austin Fields
发明人： Brian Anthony Reichert , Steven Michael Turney , Danny Keith Chapman , Thomas Austin Fields
IPC分类号： G05B19/29
CPC分类号： G02B26/122 , G05B19/404 , G05B2219/37151 , G05B2219/37515
摘要： Correction of rotary encoder eccentricity in an image forming device having a motor controller using period and position pulse train feedback signals. A motor includes an encoder disc rotating with the motor and at least two encoder sensors disposed at different circumferential positions about the encoder disc. A controller may use a high speed clock to calculate a corrected speed count based on speed counts determined from the number of clock cycles that elapse per cycle of pulse trains from the encoders. The controller may also calculate a corrected position count based at least partly on one or more position counts determined from the number of clock cycles that elapse between periodic sampling points and transitions of encoder pulse trains. The corrected position count may also be calculated based on a position count and one or more speed counts.
摘要翻译：在具有使用周期和位置脉冲串反馈信号的电机控制器的图像形成装置中校正旋转编码器偏心度。电动机包括与电动机一起旋转的编码器盘和设置在围绕编码器盘的不同圆周位置处的至少两个编码器传感器。控制器可以使用高速时钟来计算校正的速度计数，该速度计数基于从编码器每个脉冲串周期经过的时钟周期数确定的速度计数。控制器还可以至少部分地基于从周期性采样点和编码器脉冲序列的转换之间经过的时钟周期数确定的一个或多个位置计数来计算校正的位置计数。还可以基于位置计数和一个或多个速度计数来计算校正位置计数。

9. 发明授权

US07012390B1 Method and apparatus for controlling a variable speed fan in an image forming device 有权
标题翻译：用于控制图像形成装置中的变速风扇的方法和装置
公开(公告)号：US07012390B1
公开(公告)日：2006-03-14
申请号：US10959386
申请日：2004-10-06
申请人： Douglas Anthony Able , David Herman Alverson , Danny Keith Chapman , David Ross Cutts, Jr. , Brian Michael Jacobs , Matthew David Miles , Michael Todd Phillips , Benjamin Kyle Shepherd , Mark Stephen Underwood , Marshall Lee White
发明人： Douglas Anthony Able , David Herman Alverson , Danny Keith Chapman , David Ross Cutts, Jr. , Brian Michael Jacobs , Matthew David Miles , Michael Todd Phillips , Benjamin Kyle Shepherd , Mark Stephen Underwood , Marshall Lee White
IPC分类号： H02P1/00
CPC分类号： G06F1/206 , G03G21/206
摘要： An improved variable speed fan controller for use in devices such as laser printers. The controller automatically adjusts its output signal to fans such that a fan quickly settles into an appropriate operating speed, even if the fan has been newly installed into the equipment. The controller can store values in non-volatile memory, if desired, to keep track of recent changes in the fan's operating parameters and corresponding control signal values. The controller is able to control relatively inexpensive fans that don't necessarily operate at a predictable fan rotating speed under repeatable conditions and control signals, by controlling the fan to an initial or predetermined rotating speed; if the fan isn't running within a suitable range of rotational speeds, then determining whether a fine or coarse adjustment should be made to the fan's rotational speed. The controller makes appropriate adjustments until the fan's rotational speed is within acceptable operating tolerances.
摘要翻译：改进的变速风扇控制器，用于激光打印机等设备。控制器自动将其输出信号调整到风扇，即使风扇已经新安装到设备中，风扇也会迅速稳定在适当的运行速度。如果需要，控制器可以将值存储在非易失性存储器中，以跟踪风扇运行参数和相应控制信号值的最新变化。控制器能够通过将风扇控制在初始或预定的转速来控制在可重复的条件和控制信号下不一定在可预测的风扇转速下工作的相对廉价的风扇; 如果风扇没有在合适的转速范围内运行，则确定是否应对风扇的转速进行微调或粗调。控制器进行适当的调整，直到风扇的转速在可接受的工作公差范围内。

10. 发明授权

US06370354B1 Method and apparatus for controlling media-to-image registration of a single-pass intermediate transfer member-based printing apparatus 有权
标题翻译：用于控制单程中间转印构件的印刷装置的介质到图像配准的方法和装置
公开(公告)号：US06370354B1
公开(公告)日：2002-04-09
申请号：US09635484
申请日：2000-08-08
申请人： Danny Keith Chapman , Matthew Lowell McKay
发明人： Danny Keith Chapman , Matthew Lowell McKay
IPC分类号： G03G1500
CPC分类号： G03G15/6564 , G03G2215/00945 , G03G2215/0119
摘要： An improved printing apparatus provides for very accurate synchronization between cut sheet print media and the unfixed image which is conveyed on an Intermediate Transfer Member (ITM) such as a belt or a drum, and which is targeted for said print media. The printing apparatus is constructed as a single-pass ITM-based electrophotographic (e.g., laser) printer, and the length of the input print media pathway prior to image-to-media transfer is significantly shorter than the sum of the lengths of the image travel along a photoconductive drum and ITM. The print media is typically launched after imaging has been initiated on the photoconductive drum by an imaging apparatus. Variance in the leading edge of the print media with respect to the leading edge of image can be introduced due to phenomena such as pick errors, velocity variation, and uncertainties in the paper stack height. The present invention minimizes this leading edge variance to a tightly targeted specification by accurately sensing the positions of the print media and the ITM image, and correcting the print media's position by controlling the velocity of the print media prior to arriving at the transfer nip. In addition, the present invention detects the presence of print media within the sheet feeder cassette tray before imaging is started in the ITM belt, thereby minimizing the amount of waste toner generated by the printing apparatus. The imaging procedure on the ITM belt typically begins at a time prior to the printer controller having precise knowledge as to the location of the “next” sheet of print media within the combination of the input print media pathway and sheet feeder cassette tray.
摘要翻译：改进的打印设备提供了切割的打印介质和在诸如皮带或滚筒的中间传送部件（ITM）上传送并且是针对所述打印介质的未定影图像之间的非常精确的同步。打印设备被构造为基于单路ITM的电子照相（例如，激光）打印机，并且在图像到媒体传送之前的输入打印介质路径的长度显着短于图像的长度之和沿感光鼓和ITM行进。通过成像装置在感光鼓上开始成像之后，通常启动打印介质。由于诸如拾取误差，速度变化和纸堆高度的不确定性等现象，可以引入打印介质相对于图像前缘的前缘的方差。本发明通过精确地感测打印介质和ITM图像的位置以及通过在到达转印间隙之前控制打印介质的速度来校正打印介质的位置来将这种前沿方差最小化到紧密目标的规格。此外，本发明在ITM带中开始成像之前，检测在供纸盒托盘内的打印介质的存在，从而最小化由打印设备产生的废调色剂的量。在ITM带上的成像过程通常在打印机控制器具有关于输入打印介质路径和供纸盒托盘的组合中的“下一张”打印介质的位置的精确知识之前开始。

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