公开(公告)号：MX9700978A

公开(公告)日：1997-09-30

申请号：MX9700978

申请日：1997-02-07

Applicant: XEROX CORP

Inventor： MARA ROBERT M ,  SAMPATH BARBARA A ,  LAM LAI C ,  WALLER PATRICK O ,  MASTRANDREA JOSEPH A

IPC: G03G15/02 ,  G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043

Abstract: La presente invencion se refiere a un aparato para verificar y controlar un parámetro eléctrico de una superficie formadora de imagen, el aparato para control de verificacion incluye un generador de parche para registrar un primer parche de control a un primer nivel de voltaje y un segundo parche de control a un segundo nivel de voltaje en la superficie formadora de imagen; un voltímetro electrostático para medir potenciales de voltaje asociados con el primer parche de control y el segundo parche de control. Un procesador, en comunicacion con el generador de parches, calcula los parámetros eléctricos de la superficie formadora de imagen a partir de los potenciales de voltaje medidos desde el primer y segundo parches de control. El procesador determina una desviacion entre los valores de parámetros eléctricos calculados y valores pre-configurados. Luego, el procesador produce y envía una señal de error de realimentacion al generador de parches si la desviacion excede un nivel umbral. El generador de parche registra un tercer parche de control a un tercer nivel de voltaje en la superficie formadora de imagen al recibir la señal de error. El ESV detecta el tercer parche de control. El procesador calcula los parámetros eléctricos de la superficie formadora de imagen a partir del potencial de voltaje medido del tercer parche de control y determina un factor de correccion. El dispositivo de carga, sistemas de exposicion y revelador se ajustan de acuerdo con el factor de correccion.

公开(公告)号：CA2200238A1

公开(公告)日：1997-09-19

申请号：CA2200238

申请日：1997-03-18

Applicant: XEROX CORP

Inventor： MARA ROBERT M ,  SAMPATH BARBARA A ,  LAM LAI C ,  WALLER PATRICK O ,  MASTRANDREA JOSEPH A

IPC: G03G15/02 ,  G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043

Abstract: An apparatus for monitoring and controlling electrical parameter of an imaging surface, the monitoring controlling apparatus including a patch generator for recording a first control patch at a first voltage level and a second control patch at a second voltage level on the imaging surface; electrostatic voltmeter for measuring voltage potentials associated with said first control patch and second control patch. A processor, in communication with said patch generator, calculates the electricalparameters of the imaging surface from the measured voltage potentials from said first and second control patches. The processor determines a deviation between the calculated electrical parameters values and setup values. Then, the processor produces and sends a feedback error signal to said patch generator if said deviation exceed a threshold level. The patch generator records a third control patch at a third voltage level on the imaging surface upon reception of said error signal The ESVsenses said third control patch. The processor calculates the electrical parameters of the imaging surface from the measured voltage potential of the third control patch and determines a correction factor. The charging device, exposure system and developer are adjusted in accordance to said correction factor

公开(公告)号：JP2005331944A

公开(公告)日：2005-12-02

申请号：JP2005139298

申请日：2005-05-12

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： GROSS ERIC M ,  MASTRANDREA JOSEPH A ,  PACER JAMES M ,  STOOKEY DAVID R ,  KUEK SOON K ,  HAMBY ERIC S

IPC: G03G21/00 ,  G03G15/00 ,  G05B23/02

CPC classification number: G05B23/0221

Abstract: PROBLEM TO BE SOLVED: To ensure stable feedback control in a error correction system, where the data for statistical process control (SPC) sensor are entered by mistake, in a printing environment. SOLUTION: A method and apparatus, for implementing statistical process control (SPC) in a printing environment to address errant reads of control sensors, is provided. The system uses SPC, in systems having feedback control based on control sensor data, to identify errant reads and ensure that such a misreading is not used in the applicable feedback loop. As a result, unnecessary reactions to the misreading are avoided. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了确保在打印环境中错误地输入统计过程控制（SPC）传感器的数据的误差校正系统中的稳定的反馈控制。 提供了一种用于在打印环境中实现统计过程控制（SPC）以解决控制传感器的错误读取的方法和装置。 该系统在具有基于控制传感器数据的反馈控制的系统中使用SPC来识别错误的读取并且确保在适用的反馈回路中不使用这种误读。 结果，避免了对误读的不必要的反应。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2004264852A

公开(公告)日：2004-09-24

申请号：JP2004056224

申请日：2004-03-01

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： RICHARD L FORBES II ,  SCHEUER MARK A ,  MASTRANDREA JOSEPH A

IPC: G03G15/00 ,  G03G15/08 ,  G03G21/00

CPC classification number: G03G15/0848 ,  G03G15/0844 ,  G03G15/0877 ,  G03G15/0887 ,  G03G2215/017 ,  G03G2215/0604

Abstract: PROBLEM TO BE SOLVED: To provide a method for maintaining a developer in a prescribed state. SOLUTION: The developer is maintained in the prescribed state by planning so that increase of toner treating amount is regulated between a plurality of developer storage compartments. In this method, soundness of a developer is watched at each developing station among a plurality of developing stations to detect an unsound developer. When unsound developer is detected at least at one developing station, toner purge state is discriminated at each remaining developing station. Then toner purge is performed based on each toner purge state. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JPH103186A

公开(公告)日：1998-01-06

申请号：JP5592297

申请日：1997-03-11

Applicant: XEROX CORP

Inventor： MARA ROBERT M ,  SAMPATH BARBARA A ,  LAM LAI C ,  WALLER PATRICK O ,  MASTRANDREA JOSEPH A

IPC: G03G15/02 ,  G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043

Abstract: PROBLEM TO BE SOLVED: To provide a device for monitoring/controlling the electric parameter of an image forming surface. SOLUTION: A monitoring/controlling device includes a patch generator for recording a first control patch at a first voltage level and a second control patch at a second voltage level, on the image forming surface and an electrostatic wattmeter for measuring potentials related to the first and second control patches. A processor cooperated with the patch generator calculates the electric parameter of the image forming surface from the potentials measured from the first and second control patches. The processor decides the deviation between the calculated electric parameter value and a set up value. When the deviation exceeds a threshold level, the processor generates a feedback error signal and transmits it to the patch generator. This patch generator receives the error signal, to record a third control patch at a third voltage level on the image forming surface. An ESV senses the third control patch and the processor calculates the electric parameter on the image forming surface from the measured parameter of the third control patch, to decide a correction factor. A charge device, an exposure system and a developer are adjusted according to the correction factor.

公开(公告)号：JP2011063020A

公开(公告)日：2011-03-31

申请号：JP2010202600

申请日：2010-09-10

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： BUCHAR WAYNE A ,  CASEY BRENDAN C ,  MASTRANDREA JOSEPH A

IPC: B41J2/01 ,  B41J29/46

CPC classification number: B41J2/17593 ,  B41J11/002

Abstract: PROBLEM TO BE SOLVED: To provide a system which enables automatic detection and compensation of bleed-through in an image forming apparatus. SOLUTION: The image forming apparatus has a medium transportation system for transporting a medium along a medium path; a plurality of apparatuses, arranged along the medium path, which generate thermal energy partially absorbed by the medium; a print station which is arranged along the medium path and applies an ink to a first side of the medium to form an image thereon; an image sensor which is arranged downstream from the print station along the medium path and scans a second side of an opposite medium of the image formed on the first side, the image sensor forming a reflection signal which is an indicator of the reflection ratio of light from the second side of the medium; and a controller which is operably connected to receive the reflection signal from the image sensor, the controller adjusting a print process parameter based on the reflection signal without stopping print operation. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够在图像形成装置中自动检测和补偿渗流的系统。 解决方案：图像形成装置具有用于沿介质路径传送介质的介质传送系统; 沿着介质路径布置的多个装置，其产生被介质部分地吸收的热能; 打印站，沿着介质路径布置并将油墨施加到介质的第一侧以在其上形成图像; 图像传感器，其沿着介质路径布置在打印站的下游，并且扫描形成在第一侧上的图像的相对介质的第二侧，所述图像传感器形成作为光的反射率的指示符的反射信号 从媒介的第二面; 以及可操作地连接以从图像传感器接收反射信号的控制器，控制器基于反射信号来调整打印处理参数而不停止打印操作。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2005134898A

公开(公告)日：2005-05-26

申请号：JP2004307766

申请日：2004-10-22

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： GROSS ERIC M ,  MCCONVILLE PAUL J ,  LECLERC GERALD SCOTT ,  MASTRANDREA JOSEPH A ,  HIRSCH MARK J

IPC: G03G15/06 ,  G03G15/08

CPC classification number: G03G15/065

Abstract: PROBLEM TO BE SOLVED: To maintain print quality in a zerograph development system by employing a reverse bias doner roller cleaning cycle. SOLUTION: The developing device includes: a reservoir which contains a conveying member 170; donor members 176 and 178 which are spaced from each other in the direction of the movement of an image forming face 10 and supply toner particles to the image forming face, thereby developing latent images on the image forming face; a power source 515 which applies a bias to the donor members so that the toner is supplied to the image forming face for a period of a printing operation mode; a second power source 525 which maintains a predetermined voltage difference between the conveying member and the donor members so that the toner particles are attracted to the donor members from the conveying member during the period of the printing operation mode; a controller 520 which generates a trigger for a donor member purge signal based upon a detected or calculated developed state; and a power source controller 520 which varies a voltage between the donor members and the conveying member in response to the donor member purge signal, reversely transfers toner particles onto the conveying member partly or completely, and allows the image forming face to convey the toner particles when needed. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：通过采用反向偏压给辊清洁循环来保持零位显影系统中的打印质量。 解决方案：显影装置包括：容纳有输送构件170的储存器; 供体构件176和178，它们在图像形成面10的移动方向上彼此间隔开，并将调色剂颗粒供应到图像形成面，从而在图像形成面上显影潜像; 电源515，其向供体构件施加偏压，使得调色剂在打印操作模式的时段期间被供应到图像形成面; 第二电源525，其在输送构件和供体构件之间保持预定的电压差，使得在打印操作模式期间调色剂颗粒从传送构件被吸引到施主构件; 控制器520，其基于检测或计算的显影状态产生供体成员清洗信号的触发; 以及电源控制器520，其响应于施主构件清洗信号改变施主构件和输送构件之间的电压，将调色剂颗粒部分地或完全地转印到输送构件上，并允许成像面传送调色剂颗粒 需要的时候。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2003202746A

公开(公告)日：2003-07-18

申请号：JP2002353269

申请日：2002-12-05

Applicant: XEROX CORP

Inventor： GROSS ERIC M ,  SILENCE SCOTT M ,  SHOEMAKER RALPH A ,  KRECKEL DOUGLAS A ,  MAKSYMIAK JEAN A ,  MONGEON RAYMOND L ,  MASTRANDREA JOSEPH A ,  VITURRO R ENRIQUE

IPC: G01N21/47 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To solve a problem that toner concentration relies on an indirect measuring technique whose SN ratio is lowered by being measured by a toner concentration (TC) sensor which is expensive and is not so accurate. SOLUTION: This toner maintaining control system incorporates a sump (44) to store developer including a toner material, a member (46) to feed the developer from the sump, a viewing window (210) to see the developer, an optical sensor device (200) to measure light reflected at the viewing window and the developer and a means (controller) to generate a signal meaning the toner concentration in the sump. A sensor is adjacently arranged to the surface of a transparent viewing window, so that the level of the toner concentration is calculated by generating a proportional electric signal in accordance with the light reflected by the transparent viewing window and the developer. COPYRIGHT: (C)2003,JPO