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公开(公告)号：CA1253194A
公开(公告)日：1989-04-25
申请号：CA522738
申请日：1986-11-12
Applicant: XEROX CORP
Inventor： SOLCZ EDWARD J , DOMOTO GERALD A , WOLF BARRY M
Abstract: A piezoelectric bimorph scanner is disclosed which has a flexural beam attached to the free end of a cantilever mounted piezoelectric bimorph crystal. A mirror is bonded to the flexural beam a predetermined distance from the bimorph crystal. An AC voltage of predetermined frequency is applied to the bimorph crystal causing the flexural beam to oscillate with a node at the center of the mirror. The mirror rotates about the node rather than swinging in an arc, enabling the scanner to deflect a collimated light beam over a larger deflection angle than heretofore possible without additional light beam control apparatus. In an alternate embodiment, a laser diode may be mounted on the flexural beam instead of the mirror, further reducing costs and components.
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公开(公告)号：BR9704959A
公开(公告)日：1998-12-22
申请号：BR9704959
申请日：1997-10-01
Applicant: XEROX CORP
Inventor： WILLIAMS LLOYD A , JONG JOANNES N M DE , WOLF BARRY M
Abstract: There is provided a calibration system for a deskewing and registering device for an electrophotographic printing machine. The method includes a.) moving a sheet from a first position to a second position along a paper path; b.) sensing the position of the sheet at the first position and the second position; c.) choosing a correction value to cause the sheet to change a lateral position from the first position to the second position; d.) repeating the moving, sensing, and choosing steps until a predetermined adjustment is made when moving the sheet from the first position to the second position to determine a proper calibration value.
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Patent Agency Ranking
公开(公告)号：MX9707494A
公开(公告)日：1998-04-30
申请号：MX9707494
申请日：1997-09-30
Applicant: XEROX CORP
Inventor： WILLIAMS LLOYD A , DEJONG JOANNES N M , WOLF BARRY M
Abstract: La presente invencion se refiere a un sistema de calibracion para un dispositivo de alineado y registro para una máquina de impresion electrofotográfica. El método incluye a) mover una hoja desde una primer posicion a una segunda posicion sobre una trayectoria de papel; b) detectar la posicion de la hoja en la primer posicion y la segunda posicion; c) elegir un valor de correccion, para provocar que la hoja cambie una posicion lateral desde la primer posicion a la segunda posicion; d) repartir las etapas de movimiento, deteccion y seleccion hasta que se realiza un ajuste predeterminado cuando se mueve la hoja desde la primer posicion a la segunda posicion para determinar un valor de calibracion adecuado. Un sistema de calibracion para un dispositivo de alineado y registro para una máquina de impresion electrofotográfica.
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公开(公告)号：CA2215431C
公开(公告)日：2000-12-26
申请号：CA2215431
申请日：1997-09-12
Applicant: XEROX CORP
Inventor： WILLIAMS LLOYD A , WOLF BARRY M , DEJONG JOANNES N M
Abstract: There is provided a calibration system for a deskewing and registering device for an electrophotographic printing machine. The method includes a.)moving a sheet from a first position to a second position along a paper path; b.)sensing the position of the sheet at the first position and the second position; c.)choosing a correction value to cause the sheet to change a lateral position from the first position to the second position; d.)repeating the moving, sensing, and choosing steps until a predetermined adjustment is made when moving the sheet from the first position to the second position to determine a proper calibration value. A calibration system for a deskewing and registering device for an electrophotographic printing machine.
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公开(公告)号：BR9703721A
公开(公告)日：1998-07-07
申请号：BR9703721
申请日：1997-06-25
Applicant: XEROX CORP
Inventor： WOLF BARRY M , WILLIAMS LIOYD A , DEJONG JOANNES N M
Abstract: A deskewing and registering device for an electrophotographic printing machine. A single set of sensors determine the position and skew of a sheet in a paper path and generate signals indicative thereof. A pair of independently driven nips forward the sheet to a registration position in skew and at the proper time based on signals from a controller which interprets the position signals and generates the motor control signals. An additional set of sensors can be used at the registration position to provide feedback for updating the control signals as rolls wear or different substrates having different coefficients of friction are used.
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公开(公告)号：CA2215431A1
公开(公告)日：1998-04-02
申请号：CA2215431
申请日：1997-09-12
Applicant: XEROX CORP
Inventor： WOLF BARRY M , DEJONG JOANNES N M , WILLIAMS LLOYD A
Abstract: There is provided a calibration system for a deskewing and registering device for an electrophotographic printing machine. The method includes a.) moving a sheet from a first position to a second position along a paper path; b.) sensing the position of the sheet at the first position and the second position; c.) choosing a correction value to cause the sheet to change a lateral position from the first position to the second position; d.) repeating the moving, sensing, and choosing steps until a predetermined adjustment is made when moving the sheet from the first position to the second position to determine a proper calibration value.
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公开(公告)号：JPH10139220A
公开(公告)日：1998-05-26
申请号：JP27024297
申请日：1997-10-02
Applicant: XEROX CORP
Inventor： WILLIAMS LLOYD A , DEJONG JOANNES N M , WOLF BARRY M
Abstract: PROBLEM TO BE SOLVED: To calibrate a positional sensor to be used for positioning of a sheet to be fed. SOLUTION: Calibration is carried out by repeating to detect a sheet position at D3 by a sensor 134 at the time of carrying a sheet 11 from D2 to D3 by giving an optional correction value (c) and finding the correction value (c) at the time when this detection position converges to a normal position about each of the detection positions along a sensor 132. Thereafter, feeding of the sheet 11 is corrected by giving the correction value (c) in accordance with a position of the sheet 11 detected at the time when the sheet is at D2.
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