GATELESS SHEET INVERTERS FOR DUPLEX PROCESSING

    公开(公告)号:CA2210541A1

    公开(公告)日:1998-03-26

    申请号:CA2210541

    申请日:1997-07-16

    Applicant: XEROX CORP

    Abstract: A device for inverting a sheet along a path in an electric photographic printing machine. A gateless sheet inverter is provided in which a curved portion of a sheet path branch intersects a second portion of the sheet path to form a curved inverter throat. As the sheet is driven from the curved branch portion of the path into the throat portion the beam strength of the sheet causes the trail edge of the sheet to flip toward a second nip leading to the second sheet path. A pair of reversing rolls captures the lead edge of the sheet to be inverted and then reverses to drive the sheets out of the second nip formed by a tri-roll arrangement. A sheet having a radius of curvature equal to or greater than the radius of curvature of the throat will be guided along the throat baffle and fed through the second nip. To further assist in assuring the trail edge flips to the second sheet path an air knife can be added at the intersection of the path branches to assist in moving the trail edge into the second path branch. A fixed deflector can also be added and configured so that the trail edge of the sheet is guided into the second branch of the sheet path to increase the latitude of sheet curvature that can be handled by the device, the deflector further having a curved radius on the portion of the deflector contacting the sheet so that coated sheets are not damaged.

    2.
    发明专利
    未知

    公开(公告)号:BR9401350A

    公开(公告)日:1994-10-25

    申请号:BR9401350

    申请日:1994-03-30

    Applicant: XEROX CORP

    Abstract: A relief device for the tamping mechanism (176) of an offset sheet set stacker. A sheet set stacker is provided having a plurality of retractable tamping mechanisms for alternately offsetting sheet sets within the stacker. Each tamping mechanism (176) is provided with a spring biased follower arm (206) which locks the tamping mechanism (176) in an operative position. A relief device in the form of an oblong pivot mount allows the tamping mechanism (176) to not only pivotally retract from an operative position but to also shift a slight amount transversely to the paper path process direction. This slight shift prevents a binding of the tamper against the just compiled sheet stack (214) and minimizes the occurrence of sheet stack disturbance.

    3.
    发明专利
    未知

    公开(公告)号:BR9704883A

    公开(公告)日:1998-12-08

    申请号:BR9704883

    申请日:1997-09-26

    Applicant: XEROX CORP

    Abstract: A device for inverting a sheet along a path in an electric photographic printing machine. A gateless sheet inverter is provided in which a curved portion of a sheet path branch intersects a second portion of the sheet path to form a curved inverter throat. As the sheet is driven from the curved branch portion of the path into the throat portion the beam strength of the sheet causes the trail edge of the sheet to flip toward a second nip leading to the second sheet path. A pair of reversing rolls captures the lead edge of the sheet to be inverted and then reverses to drive the sheets out of the second nip formed by a tri-roll arrangement. A sheet having a radius of curvature equal to or greater than the radius of curvature of the throat will be guided along the throat baffle and fed through the second nip. To further assist in assuring the trail edge flips to the second sheet path an air knife can be added at the intersection of the path branches to assist in moving the trail edge into the second path branch. A fixed deflector can also be added and configured so that the trail edge of the sheet is guided into the second branch of the sheet path to increase the latitude of sheet curvature that can be handled by the device, the deflector further having a curved radius on the portion of the deflector contacting the sheet so that coated sheets are not damaged.

    4.
    发明专利
    未知

    公开(公告)号:DE69406486T2

    公开(公告)日:1998-05-20

    申请号:DE69406486

    申请日:1994-04-20

    Applicant: XEROX CORP

    Abstract: A relief device for the tamping mechanism (176) of an offset sheet set stacker. A sheet set stacker is provided having a plurality of retractable tamping mechanisms for alternately offsetting sheet sets within the stacker. Each tamping mechanism (176) is provided with a spring biased follower arm (206) which locks the tamping mechanism (176) in an operative position. A relief device in the form of an oblong pivot mount allows the tamping mechanism (176) to not only pivotally retract from an operative position but to also shift a slight amount transversely to the paper path process direction. This slight shift prevents a binding of the tamper against the just compiled sheet stack (214) and minimizes the occurrence of sheet stack disturbance.

    GATELESS SHEET INVERTERS FOR DUPLEX PROCESSING

    公开(公告)号:CA2210541C

    公开(公告)日:2002-02-12

    申请号:CA2210541

    申请日:1997-07-16

    Applicant: XEROX CORP

    Abstract: A device for inverting a sheet along a path in an electric photographic printing machine. A gateless sheet inverter is provided in which a curved portion of a sheet path branch intersects a second portion of the sheet path to form a curved inverter throat. As the sheet is driven from the curved branch portion of the path into the throat portion the beam strength of the sheet causes the trail edge of the sheet to flip foward a second nip leading to the second sheet path. A pair of reversing rolls captures the lead edge of the sheet to be inverted and then reverses to drive the sheets out of the second nip formed by a tri-roll arrangement. A sheet having a radius of curvature equal to or greater than the radius of curvature of the throat will be guided along the throat baffle and fed through the second nip. To further assist in assuring the tra il edge flips to the second sheet path an air knife can be added at the intersection of the path branches to assist in moving the trail edge into th e second path branch. A fixed deflector can also be added and configured so that the trail edge of the sheet is guided into the second branch of the sheet path to increase the lattitude of sheet curvature that can be handled by the device, the deflector further having a curved radius on the portion of the deflector contacting the sheet so that coated sheets are not damaged.

    6.
    发明专利
    未知

    公开(公告)号:DE69406486D1

    公开(公告)日:1997-12-04

    申请号:DE69406486

    申请日:1994-04-20

    Applicant: XEROX CORP

    Abstract: A relief device for the tamping mechanism (176) of an offset sheet set stacker. A sheet set stacker is provided having a plurality of retractable tamping mechanisms for alternately offsetting sheet sets within the stacker. Each tamping mechanism (176) is provided with a spring biased follower arm (206) which locks the tamping mechanism (176) in an operative position. A relief device in the form of an oblong pivot mount allows the tamping mechanism (176) to not only pivotally retract from an operative position but to also shift a slight amount transversely to the paper path process direction. This slight shift prevents a binding of the tamper against the just compiled sheet stack (214) and minimizes the occurrence of sheet stack disturbance.

    Printing system having reverser with medium speed buffer and registration function
    7.
    发明专利
    Printing system having reverser with medium speed buffer and registration function 审中-公开
    具有中速缓冲器和注册功能的反转器打印系统

    公开(公告)号:JP2006056717A

    公开(公告)日:2006-03-02

    申请号:JP2005235722

    申请日:2005-08-16

    CPC classification number: G03G15/6529 G03G15/238 G03G2215/00021

    Abstract: PROBLEM TO BE SOLVED: To efficiently shorten a medium processing passage to enhance the reliability of the processing passage and to reduce the size of the whole machine in a parallel printing system. SOLUTION: The printing system 10 is provided with a plurality of marking engines 12, 14, a paper feeding device and a medium outlet conveying part; a highway passage 24 for conveying documents at a first speed through the system; and a reverser 92 disposed between the highway passage 24 and at least one marking engine 12. The reverser 92 is constituted to selectively reverse and convey the documents at a second speed (slower than the first speed for image formation) through at least one marking engine 12 and to buffer the difference between the first speed and second speed (to prevent influence caused by the speed difference between the first speed and second speed). COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:为了有效地缩短介质处理通道以增强处理通道的可靠性并且在平行打印系统中减小整个机器的尺寸。 解决方案:打印系统10设有多个打标机12,14,送纸装置和介质出口传送部分; 用于通过系统以第一速度传送文件的高速公路通道24; 以及设置在高速公路通道24和至少一个标记引擎12之间的反转器92.反向器92被构造成通过至少一个标记引擎以第二速度(比图像形成的第一速度慢)来选择性地反转和传送文件 并且缓冲第一速度和第二速度之间的差异(以防止由第一速度和第二速度之间的速度差引起的影响)。 版权所有(C)2006,JPO&NCIPI

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