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1. 发明授权

US08246041B2 System and method for monitoring image forming machine media stack height and method of calibrating stack height sensing in the monitoring system 有权
标题翻译：用于监控图像形成机器介质堆叠高度的系统和方法以及在监控系统中校准堆叠高度感测的方法
公开(公告)号：US08246041B2
公开(公告)日：2012-08-21
申请号：US12488345
申请日：2009-06-19
申请人： Daniel Robert Gagnon , Robert Warren Rumford , John Thomas Writt
发明人： Daniel Robert Gagnon , Robert Warren Rumford , John Thomas Writt
IPC分类号： B65H43/00
CPC分类号： B65H3/0684 , B65H2511/152 , B65H2511/212 , B65H2553/51 , B65H2801/06 , B65H2220/03 , B65H2220/02 , B65H2220/11
摘要： A system and method for monitoring media stack height utilizes a pick mechanism and stack height sensing mechanism. The pick mechanism has a pick arm and a pick roller, the arm rotatably mounted at one end to pivot about an axis and change its angular position relative thereto. The roller rotatably mounted to an opposite end of the arm contacts a media stack top and is rotatably driven to feed sheets one at a time from the stack top changing the stack height. The angular position of the arm relative to the stack changes as the stack height changes. The stack height sensing mechanism arranged on and adjacent to the arm senses arm angular displacement as the stack height changes to provide an indication of the sheet quantity remaining in the stack. A method for calibrating stack height sensing of the monitoring system provides one or more calibration points such as at “full stack” and “stack out” conditions.
摘要翻译：用于监测介质堆高的系统和方法利用拾取机构和堆高度检测机构。拾取机构具有拾取臂和拾取辊，臂可旋转地安装在一端以围绕轴线枢转并相对于其改变其角度位置。可旋转地安装到臂的相对端的辊接触介质堆叠顶部并且被可旋转地驱动以一次一个地从堆叠顶部改变堆叠高度。臂相对于堆叠的角位置随着堆叠高度的变化而变化。布置在臂上并与其相邻的堆叠高度检测机构当堆叠高度改变时感测臂角位移以提供堆叠中剩余的片材数量的指示。用于校准监测系统的堆叠高度感测的方法提供了一个或多个校准点，例如在“完全堆叠”和“堆叠”条件下。

2. 发明申请

US20100320676A1 System and Method for Monitoring Image Forming Machine Media Stack Height and Method of Calibrating Stack Height Sensing in the Monitoring System 有权
标题翻译：监控图像成像机介质堆叠高度和校准堆高度检测方法的系统和方法
公开(公告)号：US20100320676A1
公开(公告)日：2010-12-23
申请号：US12488345
申请日：2009-06-19
申请人： Daniel Robert Gagnon , Robert Warren Rumford , John Thomas Writt
发明人： Daniel Robert Gagnon , Robert Warren Rumford , John Thomas Writt
IPC分类号： B65H1/00 , B65H3/06
CPC分类号： B65H3/0684 , B65H2511/152 , B65H2511/212 , B65H2553/51 , B65H2801/06 , B65H2220/03 , B65H2220/02 , B65H2220/11
摘要： A system and method for monitoring media stack height utilizes a pick mechanism and stack height sensing mechanism. The pick mechanism has a pick arm and a pick roller, the arm rotatably mounted at one end to pivot about an axis and change its angular position relative thereto. The roller rotatably mounted to an opposite end of the arm contacts a media stack top and is rotatably driven to feed sheets one at a time from the stack top changing the stack height. The angular position of the arm relative to the stack changes as the stack height changes. The stack height sensing mechanism arranged on and adjacent to the arm senses arm angular displacement as the stack height changes to provide an indication of the sheet quantity remaining in the stack. A method for calibrating stack height sensing of the monitoring system provides one or more calibration points such as at “full stack” and “stack out” conditions.
摘要翻译：用于监测介质堆高的系统和方法利用拾取机构和堆高度检测机构。拾取机构具有拾取臂和拾取辊，臂可旋转地安装在一端以围绕轴线枢转并相对于其改变其角度位置。可旋转地安装到臂的相对端的辊接触介质堆叠顶部并且被可旋转地驱动以一次一个地从堆叠顶部改变堆叠高度。臂相对于堆叠的角位置随着堆叠高度的变化而变化。布置在臂上并与其相邻的堆叠高度检测机构当堆叠高度改变时感测臂角位移以提供堆叠中剩余的片材数量的指示。用于校准监测系统的堆叠高度感测的方法提供了一个或多个校准点，例如在“完全堆叠”和“堆叠”条件下。

3. 发明授权

US08246042B2 Method for calibrating stack height sensing in a media stack height monitoring system in an image forming machine 有权
标题翻译：在图像形成机中的媒体堆叠高度监视系统中校准堆叠高度感测的方法
公开(公告)号：US08246042B2
公开(公告)日：2012-08-21
申请号：US12872344
申请日：2010-08-31
申请人： Daniel Robert Gagnon , Robert Warren Rumford , John Thomas Writt
发明人： Daniel Robert Gagnon , Robert Warren Rumford , John Thomas Writt
IPC分类号： B65H3/06
CPC分类号： B65H3/0684 , B65H2511/152 , B65H2511/212 , B65H2553/51 , B65H2801/06 , B65H2220/03 , B65H2220/02 , B65H2220/11
摘要： A method of calibrating stack height sensing in a media stack height monitoring system in an image forming machine includes sensing the angular position of a pick mechanism arm, generating electrical signals having levels correlated to the pick mechanism arm angular positions that correspond to different stack height levels, measuring and storing at least one value corresponding to the level of the electrical signal at least at one of two calibration points: “full load” and “stack out” conditions of the media stack, estimating either the amount or percent of media sheets remaining in the media stack corresponding to measured and stored value of the electrical signal level at the at least one calibration point, and indicating either of the amount or percent of media sheets remaining in the media stack.
摘要翻译：在图像形成机中的校准堆叠高度监测系统中的堆叠高度检测的方法包括感测拾取机构臂的角位置，产生具有与拾取机构臂角度位置相关联的水平的电信号，该位置对应于不同的堆叠高度水平至少在两个校准点之一测量和存储与电信号的电平对应的至少一个值：媒体堆栈的“满载”和“叠放”条件，估计剩余的介质片材的量或百分比在所述媒体堆栈中，对应于所述至少一个校准点处的电信号电平的测量值和存储值，并且指示所述媒体堆栈中剩余的介质片材的量或百分比。

4. 发明申请

US20110056266A1 Method For Calibrating Stack Height Sensing In A Media Stack Height Monitoring System In An Image Forming Machine 有权
标题翻译：用于校准图像形成机中介质堆高度监测系统中堆叠高度的校准方法
公开(公告)号：US20110056266A1
公开(公告)日：2011-03-10
申请号：US12872344
申请日：2010-08-31
申请人： Daniel Robert Gagnon , Robert Warren Rumford , John Thomas Writt
发明人： Daniel Robert Gagnon , Robert Warren Rumford , John Thomas Writt
IPC分类号： G01P21/00
CPC分类号： B65H3/0684 , B65H2511/152 , B65H2511/212 , B65H2553/51 , B65H2801/06 , B65H2220/03 , B65H2220/02 , B65H2220/11
摘要： A method of calibrating stack height sensing in a media stack height monitoring system in an image forming machine includes sensing the angular position of a pick mechanism arm, generating electrical signals having levels correlated to the pick mechanism arm angular positions that correspond to different stack height levels, measuring and storing at least one value corresponding to the level of the electrical signal at least at one of two calibration points: “full load” and “stack out” conditions of the media stack, estimating either the amount or percent of media sheets remaining in the media stack corresponding to measured and stored value of the electrical signal level at the at least one calibration point, and indicating either of the amount or percent of media sheets remaining in the media stack.
摘要翻译：在图像形成机中的校准堆叠高度监测系统中的堆叠高度检测的方法包括：检测拾取机构臂的角位置，产生具有与拾取机构臂角度位置相关联的水平的电信号，所述拾取机构臂位置对应于不同的堆叠高度水平至少在两个校准点之一测量和存储与电信号的电平对应的至少一个值：媒体堆栈的“满载”和“叠放”条件，估计剩余的介质片材的量或百分比在所述媒体堆栈中，对应于所述至少一个校准点处的电信号电平的测量值和存储值，并且指示所述媒体堆栈中剩余的介质片材的量或百分比。

5. 发明申请

US20100284034A1 TOY MAILBOX 有权
标题翻译：玩具邮箱
公开(公告)号：US20100284034A1
公开(公告)日：2010-11-11
申请号：US12437231
申请日：2009-05-07
申请人： John Thomas Writt
发明人： John Thomas Writt
IPC分类号： G06F15/00
CPC分类号： A63H33/30 , A47G29/12 , A47G29/122
摘要： A toy mailbox for children includes a storage unit and a media processing mechanism. The storage unit includes a door member for closeably opening the storage unit and an ejection slot configured on a portion of the storage unit. The media processing mechanism is coupled to the storage unit, such that the media processing mechanism is capable of dispensing a media sheet having data content printed thereon, into the storage unit through the ejection slot. Opening the storage unit enables children to access the media sheet from within the storage unit. The media processing mechanism is also capable of printing the data content on the media sheet prior to dispensing the media sheet into the storage unit.
摘要翻译：儿童玩具邮箱包括存储单元和媒体处理机构。存储单元包括用于可靠地打开存储单元的门构件和构造在存储单元的一部分上的排出槽。媒体处理机构耦合到存储单元，使得媒体处理机构能够将其上印有数据内容的媒体片通过喷射槽分配到存储单元中。打开存储单元可使儿童从存储单元内访问介质页。介质处理机构还能够在将介质片材分配到存储单元之前在介质片材上打印数据内容。

6. 发明申请

US20080079956A1 Hand-Held Printer Having An Integrated Digital Camera Scanner 审中-公开
标题翻译：手持式打印机具有集成的数码相机扫描仪
公开(公告)号：US20080079956A1
公开(公告)日：2008-04-03
申请号：US11533913
申请日：2006-09-21
申请人： Mahesan Chelvayohan , John Thomas Writt
发明人： Mahesan Chelvayohan , John Thomas Writt
IPC分类号： G06F3/12
CPC分类号： B41J3/36 , B41J3/44 , B41J3/46 , H04N1/00278 , H04N1/00384 , H04N1/00408 , H04N1/0044 , H04N1/00477 , H04N1/107 , H04N1/1075 , H04N1/195 , H04N1/19594 , H04N2201/0096 , H04N2201/0436
摘要： A hand-held printer includes at least one print nozzle and a digital camera scanner. The digital camera scanner is operable to capture an image of an object, which is stored in a memory of the hand-held printer. The hand-held printer is then operable to print the captured image using the at least one print nozzle.
摘要翻译：手持打印机包括至少一个打印喷嘴和数字照相机扫描器。数字照相机扫描器可操作以捕获存储在手持式打印机的存储器中的对象的图像。手持式打印机然后可操作以使用至少一个打印喷嘴打印捕获的图像。

7. 发明授权

US06873129B1 Method of controlling rotational velocity of a rotatable member during encoder initialization for an imaging apparatus 有权
标题翻译：一种用于在成像装置的编码器初始化期间控制可旋转构件的旋转速度的方法
公开(公告)号：US06873129B1
公开(公告)日：2005-03-29
申请号：US10737547
申请日：2003-12-16
申请人： Daniel Aaron Leverett , John Thomas Writt
发明人： Daniel Aaron Leverett , John Thomas Writt
IPC分类号： G05B19/33
CPC分类号： G05B19/33 , G05B2219/37104 , G05B2219/37151 , G05B2219/45187
摘要： A method of controlling a rotational velocity of a rotatable member during initialization of an analog encoder unit that generates a channel A signal and a channel B signal, includes the steps of processing the channel A signal and the channel B signal to generate a feedback signal, an integrity of the feedback signal being maintained even if only one of the channel A signal and channel B signal is functional; and controlling the rotational velocity of the rotatable member during the initialization of the analog encoder unit based on the feedback signal generated by processing the channel A signal and the channel B signal.
摘要翻译：一种在产生通道A信号和通道B信号的模拟编码器单元的初始化期间控制可旋转构件的旋转速度的方法包括以下步骤：处理通道A信号和通道B信号以产生反馈信号，即使信道A信号和信道B信号中只有一个是功能的，也保持反馈信号的完整性; 并且在模拟编码器单元的初始化期间基于通过处理通道A信号和通道B信号而产生的反馈信号来控制可旋转构件的旋转速度。

8. 发明授权

US06409298B1 System and method for controlling current density in thermal printheads 有权
标题翻译：用于控制热敏打印头中电流密度的系统和方法
公开(公告)号：US06409298B1
公开(公告)日：2002-06-25
申请号：US09583687
申请日：2000-05-31
申请人： Adam Jude Ahne , Mark Joseph Edwards , John Thomas Writt
发明人： Adam Jude Ahne , Mark Joseph Edwards , John Thomas Writt
IPC分类号： B41J2938
CPC分类号： B41J2/0451 , B41J2/04513 , B41J2/04536 , B41J2/04538 , B41J2/04563 , B41J2/0458
摘要： Electromigration within heater resistors of printheads is prevented by taking into account a resistance degradation characteristic of the heater resistors. In one method a burn in operation of the printhead heater resistors is provided in order to bring the heater resistor resistance to a substantially stable resistance value. Alternatively, a method of controlling firing of a heater resistor within a printhead of an ink jet printer involves establishing a desired current density or maximum acceptable current density for the heater resistor. A resistance of the heater resistor is thereafter monitored during printing operations. Based at least in part upon the monitored resistance, a firing voltage across the heater resistor is adjusted in order to maintain the desired current density through the heater resistor or in order to hold current density through the heater resistor at or below the maximum acceptable current density.
摘要翻译：通过考虑加热电阻器的电阻劣化特性来防止打印头的加热电阻器内的电迁移。在一种方法中，提供打印头加热电阻器的操作烧录，以使加热器电阻器电阻达到基本上稳定的电阻值。或者，控制在喷墨打印机的打印头内的加热电阻器的点火的方法包括为加热电阻器建立期望的电流密度或最大可接受的电流密度。此后在打印操作期间监视加热电阻的电阻。至少部分地基于所监测的电阻，调节加热电阻器两端的点火电压，以便通过加热电阻器保持期望的电流密度，或者为了保持通过加热电阻器的电流密度达到或低于最大可接受电流密度。

9. 发明授权

US08194292B2 Imaging apparatus having an LCD document glass 有权
标题翻译：具有LCD文档玻璃的成像设备
公开(公告)号：US08194292B2
公开(公告)日：2012-06-05
申请号：US12006189
申请日：2007-12-31
申请人： Brian Dale Cook , Brian Keith Owens , Michael R. Wedding , John Thomas Writt
发明人： Brian Dale Cook , Brian Keith Owens , Michael R. Wedding , John Thomas Writt
IPC分类号： H04N1/04
CPC分类号： H04N1/1017 , H04N1/00816 , H04N1/193 , H04N1/3872 , H04N2201/0416 , H04N2201/0422
摘要： An imaging apparatus includes an image capturing system, and a controller communicatively coupled to the image capturing system. A scanner body has a scanner opening. The image capturing system is located adjacent the scanner opening. An LCD document glass is adjacent to the scanner opening. The LCD document glass is communicatively coupled to the controller. The LCD document glass is controlled to be in a transparent state wherein the LCD document glass is clear and a translucent state wherein the LCD document glass is darkened.
摘要翻译：成像装置包括图像捕获系统和通信地耦合到图像捕获系统的控制器。扫描器主体具有扫描仪开口。图像捕获系统位于扫描仪开口附近。 LCD文档玻璃与扫描仪开口相邻。 LCD文档玻璃通信连接到控制器。 LCD文档玻璃被控制为透明状态，其中LCD文档玻璃是透明的，并且是LCD文档玻璃变暗的半透明状态。

10. 发明授权

US06640157B2 Method for operating a media feed motor of a printer 有权
标题翻译：操作打印机的介质进给电机的方法
公开(公告)号：US06640157B2
公开(公告)日：2003-10-28
申请号：US10073794
申请日：2002-02-11
申请人： John Thomas Writt , Barry Baxter Stout , Michael Anthony Marra, III , Randall David Mayo , Robert A. Bailey
发明人： John Thomas Writt , Barry Baxter Stout , Michael Anthony Marra, III , Randall David Mayo , Robert A. Bailey
IPC分类号： G06F700
CPC分类号： B41J11/42
摘要： A method of the invention is for operating a media feed motor of a printer to perform a media feed move of a predetermined distance and includes steps a) through c). Step a) includes choosing a position-error scale factor for a media feed move that is within a range of distances. Step b) includes calculating a media-feed-motor drive signal which includes a position error contribution substantially equal to the product of the position-error scale factor and the difference between a desired final media position at the end of a media feed move and the actual media position. Step c) includes modifying the position error contribution in step b) to reduce its effect when the predetermined distance is greater than the maximum distance within the range but not when the predetermined distance is less than the maximum distance within the range.
摘要翻译：本发明的一种方法是用于操作打印机的介质进给马达以执行预定距离的介质进给运动，并且包括步骤a）至c）。步骤a）包括为距离范围内的介质进给移动选择位置误差比例因子。步骤b）包括计算介质馈送电动机驱动信号，该信号包括基本上等于位置误差比例因子的乘积的位置误差贡献和介质馈送移动结束时期望的最终介质位置之间的差和实际媒体位置步骤c）包括在步骤b）中修改位置误差贡献以当预定距离大于该范围内的最大距离时减小其效果，但是当预定距离小于该范围内的最大距离时。

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