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公开(公告)号：CA2128676A1
公开(公告)日：1995-03-09
申请号：CA2128676
申请日：1994-07-22
Applicant: XEROX CORP
Inventor： SOTACK JOHN D , DEZEN WILLIAM L , BENEDICT LAWRENCE R , ZAYED GAITH O , WERNER ALAN J JR
Abstract: An apparatus for detecting the level of material in a container. The apparatus comprises a power source and a first electrode, positioned adjacent the container, electrically connected to the power source. The apparatus further comprises a second electrode. The second electrode is spaced from the first electrode and positioned adjacent the container. The apparatus further comprises an electrical amplifier which is electrically connected to the second electrode. The amplifier amplifies a current induced in the second electrode and generates a voltage signal. The amplifier is adapted to maintain the second electrode at a virtual ground to minimize environmental impedance effects. The apparatus further comprises a rectifier, electrically connected to the amplifier, for rectifying the voltage signal and a comparator, electrically connected to the rectifier, for comparing the voltage signal to a predetermined voltage signal corresponding to the container being full with material.
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公开(公告)号：CA2128676C
公开(公告)日：1997-12-23
申请号：CA2128676
申请日：1994-07-22
Applicant: XEROX CORP
Inventor： ZAYED GAITH O , WERNER ALAN J JR , SOTACK JOHN D , DEZEN WILLIAM L , BENEDICT LAWRENCE R
Abstract: An apparatus for detecting the level of material in a container. The apparatus comprises a power source and a first electrode, positioned adjacent the container, electrically connected to the power source. The apparatus further comprises a second electrode. The second electrode is spaced from the first electrode and positioned adjacent the container. The apparatus further comprises an electrical amplifier which is electrically connected to the second electrode. The amplifier amplifies a current induced in the second electrode and generates a voltage signal. The amplifier is adapted to maintain the second electrode at a virtual ground to minimize environmental impedance effects. The apparatus further comprises a rectifier, electrically connected to the amplifier, for rectifying the voltage signal and a comparator, electrically connected to the rectifier, for comparing the voltage signal to a predetermined voltage signal corresponding to the container being full with material.
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公开(公告)号：DE69018222T2
公开(公告)日：1995-11-09
申请号：DE69018222
申请日：1990-12-18
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W , LINDENFELSER WILLIAM M , SOTACK JOHN D
Abstract: Direct electrostatic printing apparatus including structure for delivering developer or toner particles to a printhead forming an integral part of the printing device. The toner particles are attracted from a toner delivery system (24) towards a support for an image receiving substrate (30), passing through apertures (76) in the printhead structure. The printhead structure includes control electrodes (70) and a shield electrode structure (72) secured to opposite sides of an insulative base (31). The radius of the opening of a control electrode (70) is smaller than the radius of a corresponding shield electrode (72) opening resulting in larger peak potentials for controlling toner flow for the same voltage applied to the control electrode of a printhead aperture wherein the control electrode opening is larger than the opening in a corresponding shield electrode opening.
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公开(公告)号：DE69015059D1
公开(公告)日：1995-01-26
申请号：DE69015059
申请日：1990-08-28
Applicant: XEROX CORP
Inventor： SOTACK JOHN D
Abstract: Direct electrostatic printing (DEP) is enhanced by the provision of wrong-sign toner extraction holes or apertures (38) provided in control electrodes (40) in a printhead structure (14) at a location which is upstream of the printing apertures. Wrong sign toner particles are extracted from a cloud of toner provided from a toner delivery device (12). The wrong sign toner is extracted from the powder cloud before the cloud reaches the vicinity of the printing apertures thereby minimizing print hole blockage.
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Patent Agency Ranking
公开(公告)号：DE69015059T2
公开(公告)日：1995-07-20
申请号：DE69015059
申请日：1990-08-28
Applicant: XEROX CORP
Inventor： SOTACK JOHN D
Abstract: Direct electrostatic printing (DEP) is enhanced by the provision of wrong-sign toner extraction holes or apertures (38) provided in control electrodes (40) in a printhead structure (14) at a location which is upstream of the printing apertures. Wrong sign toner particles are extracted from a cloud of toner provided from a toner delivery device (12). The wrong sign toner is extracted from the powder cloud before the cloud reaches the vicinity of the printing apertures thereby minimizing print hole blockage.
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公开(公告)号：DE69018222D1
公开(公告)日：1995-05-04
申请号：DE69018222
申请日：1990-12-18
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W , LINDENFELSER WILLIAM M , SOTACK JOHN D
Abstract: Direct electrostatic printing apparatus including structure for delivering developer or toner particles to a printhead forming an integral part of the printing device. The toner particles are attracted from a toner delivery system (24) towards a support for an image receiving substrate (30), passing through apertures (76) in the printhead structure. The printhead structure includes control electrodes (70) and a shield electrode structure (72) secured to opposite sides of an insulative base (31). The radius of the opening of a control electrode (70) is smaller than the radius of a corresponding shield electrode (72) opening resulting in larger peak potentials for controlling toner flow for the same voltage applied to the control electrode of a printhead aperture wherein the control electrode opening is larger than the opening in a corresponding shield electrode opening.
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公开(公告)号：CA1308900C
公开(公告)日：1992-10-20
申请号：CA550203
申请日：1987-10-26
Applicant: XEROX CORP
Inventor： SCHMIDLIN FRED W , SOTACK JOHN D
Abstract: Direct Electrostatic Printing apparatus including structure for removing wrong sign developer particles from a printhead forming an an integral part of the printing device. The printing device includes, in addition to the printhead, a conductive shoe which is suitably biased during a printing cycle to assist in the electrostatic attraction of developer passing through apertures in the printhead onto the copying medium disposed intermediate the printhead and the conductive shoe. During a cleaning cycle, the printing bias is removed from the shoe and an electrical bias suitable for creating an oscillating electrostatic field which effects removal of toner from the printhead is applied to the shoe.
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公开(公告)号：JP2003228419A
公开(公告)日：2003-08-15
申请号：JP2002370812
申请日：2002-12-20
Applicant: XEROX CORP
Inventor： SOTACK JOHN D
Abstract: PROBLEM TO BE SOLVED: To provide a detection method for detecting abnormal parts. SOLUTION: The method can compare a current fed to a specific part 21, which is an only one active part with a reference current, indicating appropriate part operations by reading selectively a current fed to a part group 20. If there is a mismatch between the two currents, it is possible to issue an alarm also and apply the method on a larger scale, and a sub system, a part group in the sub system and parts in the sub system can be separated. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003308129A
公开(公告)日：2003-10-31
申请号：JP2003031389
申请日：2003-02-07
Applicant: Xerox Corp , ゼロックス・コーポレーション
Inventor： BERNDT JOHN W , GERARDI ROBERT V , SOTACK JOHN D
CPC classification number: G06F3/1204 , G06F3/1222 , G06F3/1236 , G06F3/1239 , G06F3/1288
Abstract: PROBLEM TO BE SOLVED: To provide various services to be provided by the device of an organization and an inexpensive and highly reliable and convenient method for controlling access to special features available in those services. SOLUTION: The system is provided with an access code system for embedding at least one access code associated with at least one device feature in a job stream and a job transmission system for transmitting the job stream to the device. COPYRIGHT: (C)2004,JPO
Abstract translation: 要解决的问题：提供由组织的设备提供的各种服务，以及用于控制对这些服务中可用的特殊功能的访问的廉价且高度可靠和方便的方法。 解决方案：该系统具有访问代码系统，用于将与至少一个设备特征相关联的至少一个访问代码嵌入到作业流中，以及作业传输系统，用于将作业流发送到设备。 版权所有（C）2004，JPO
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