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公开(公告)号：DE69619023D1
公开(公告)日：2002-03-21
申请号：DE69619023
申请日：1996-05-30
Applicant: XEROX CORP
Inventor： ACQUAVIVA THOMAS , BRANT WILLIAM , CRUZ RANDOLPH
Abstract: A sheet stacking and registration system (10) particularly suited for high speed sequentially stacking of the flimsy printed sheets output of a high speed reproduction apparatus (14) in a sheet stacking area (20), with a stacking registration position (30); with a vacuum belt sheet transport system (40) acquiring only a limited lead edge area of the sheets and transporting them over the stacking area with non-slip sheet feeding towards the registration position; and an integral system (50) peeling the lead edges of the sheets off of the vacuum transport and guiding them downwardly and towards the lead edge registration position while reducing but partially maintaining the sheet's vacuum acquisition, and applying a normal force, preferably with a roller (56) pressing down the lead edges of the peeled off sheet against the previously stacked sheets adjacent the registration position, to frictionally slow the sheet as it approaches the registration position, and also holding down the sheet after it reaches the stacking position. The sheet transport may have spaced belt flights (44a,44b) with spaced patterns (82) of vacuum apertures (80) spaced between substantially unapertured areas along the belts, and a synchronized belt drive to synchronously engage the lead edge areas of the incoming sheets. An upstream natural arcuate inversion path (66) with a side registration system (70) may be integrated therewith.
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公开(公告)号：DE69824083T2
公开(公告)日：2004-10-21
申请号：DE69824083
申请日：1998-06-02
Applicant: XEROX CORP
Inventor： ANDERSON DAVID G , LOONEY JOHN H , ACQUAVIVA THOMAS , CRUZ RANDOLPH
Abstract: A ball-on-belt transport includes a belt (71) with a steel ball (77) positioned on top of the belt and a magnet (79) on the back side of the belt with the ball forming a nip with the belt to provide necessary normal force against a conveyed sheet and thereby allowing easy lateral pulling of sheets in clearing jams from the nip. Alternatively, a steel ball (85) is retained while in contact with a belt to apply a normal force to a sheet on the belt equal to the weight of the steel ball. The ball (85) is encased in a housing (81) that is surrounded by a solenoid coil (84) such that when current is applied to the coil, it acts as a solenoid and raises the ball off the belt surface and thus releases the nip pressure.
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公开(公告)号：DE69824083D1
公开(公告)日：2004-07-01
申请号：DE69824083
申请日：1998-06-02
Applicant: XEROX CORP
Inventor： ANDERSON DAVID G , LOONEY JOHN H , ACQUAVIVA THOMAS , CRUZ RANDOLPH
Abstract: A ball-on-belt transport includes a belt (71) with a steel ball (77) positioned on top of the belt and a magnet (79) on the back side of the belt with the ball forming a nip with the belt to provide necessary normal force against a conveyed sheet and thereby allowing easy lateral pulling of sheets in clearing jams from the nip. Alternatively, a steel ball (85) is retained while in contact with a belt to apply a normal force to a sheet on the belt equal to the weight of the steel ball. The ball (85) is encased in a housing (81) that is surrounded by a solenoid coil (84) such that when current is applied to the coil, it acts as a solenoid and raises the ball off the belt surface and thus releases the nip pressure.
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Patent Agency Ranking
公开(公告)号：CA2172194A1
公开(公告)日：1996-12-02
申请号：CA2172194
申请日：1996-03-20
Applicant: XEROX CORP
Inventor： ACQUAVIVA THOMAS , BRANT WILLIAM , CRUZ RANDOLPH
Abstract: A sheet stacking and registration system (10) particularly suited for high speed sequentially stacking of the flimsy printed sheets output of a high speed reproduction apparatus (14) in a sheet stacking area (20), with a stacking registration position (30); with a vacuum belt sheet transport system (40) acquiring only a limited lead edge area of the sheets and transporting them over the stacking area with non-slip sheet feeding towards the registration position; and an integral system (50) peeling the lead edges of the sheets off of the vacuum transport and guiding them downwardly and towards the lead edge registration position while reducing but partially maintaining the sheet's vacuum acquisition, and applying a normal force, preferably with a roller (56) pressing down the lead edges of the peeled off sheet against the previously stacked sheets adjacent the registration position, to frictionally slow the sheet as it approaches the registration position, and also holding down the sheet after it reaches the stacking position. The sheet transport may have spaced belt flights (44a,44b) with spaced patterns (82) of vacuum apertures (80) spaced between substantially unapertured areas along the belts, and a synchronized belt drive to synchronously engage the lead edge areas of the incoming sheets. An upstream natural arcuate inversion path (66) with a side registration system (70) may be integrated therewith.
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公开(公告)号：DE69619023T2
公开(公告)日：2002-06-20
申请号：DE69619023
申请日：1996-05-30
Applicant: XEROX CORP
Inventor： ACQUAVIVA THOMAS , BRANT WILLIAM , CRUZ RANDOLPH
Abstract: A sheet stacking and registration system (10) particularly suited for high speed sequentially stacking of the flimsy printed sheets output of a high speed reproduction apparatus (14) in a sheet stacking area (20), with a stacking registration position (30); with a vacuum belt sheet transport system (40) acquiring only a limited lead edge area of the sheets and transporting them over the stacking area with non-slip sheet feeding towards the registration position; and an integral system (50) peeling the lead edges of the sheets off of the vacuum transport and guiding them downwardly and towards the lead edge registration position while reducing but partially maintaining the sheet's vacuum acquisition, and applying a normal force, preferably with a roller (56) pressing down the lead edges of the peeled off sheet against the previously stacked sheets adjacent the registration position, to frictionally slow the sheet as it approaches the registration position, and also holding down the sheet after it reaches the stacking position. The sheet transport may have spaced belt flights (44a,44b) with spaced patterns (82) of vacuum apertures (80) spaced between substantially unapertured areas along the belts, and a synchronized belt drive to synchronously engage the lead edge areas of the incoming sheets. An upstream natural arcuate inversion path (66) with a side registration system (70) may be integrated therewith.
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公开(公告)号：CA2172194C
公开(公告)日：1999-01-12
申请号：CA2172194
申请日：1996-03-20
Applicant: XEROX CORP
Inventor： ACQUAVIVA THOMAS , BRANT WILLIAM , CRUZ RANDOLPH
Abstract: A sheet stacking and registration system particularly suited for high speed sequentially stacking of the flimsy printed sheets output of a high speed reproduction apparatus in a sheet stacking area, with a stacking registration position; with a vacuum belt sheet transport system acquiring only a limited lead edge area of the sheets and transporting them over the stacking area with nonslip sheet feeding towards the registration position; and an integral system peeling the lead edges of the sheets off of the vacuum transport and guiding them downwardly and towards the lead edge registration position while reducing but partially maintaining the sheet's vacuum acquisition, and applying a normal force, preferably with a roller pressing down the lead edges of the peeled off sheet against the previously stacked sheets adjacent the registrationposition, to frictionally slow the sheet as it approaches the registration position, and also holding down the sheet after it reaches the stacking position. The sheet transport may have spaced belt flights with spaced patterns of vacuum apertures spaced between substantially unapertured areas along the belts, and a synchronized belt drive to synchronously engage the lead edge areas of the incoming sheets. An upstream natural arcuate inversion path with a side registration system may be integrated therewith.
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公开(公告)号：JPH11167317A
公开(公告)日：1999-06-22
申请号：JP27581798
申请日：1998-09-29
Applicant: XEROX CORP
Inventor： CRUZ RANDOLPH , ACQUAVIVA THOMAS
Abstract: PROBLEM TO BE SOLVED: To provide a device and a system used in an electrostatic copying device capable of preventing curling and waving at the edge from occurring because moisture is lost from copying paper in the fixing step of electrostatic copying or printing. SOLUTION: This device for applying the controlled quantity of moisture to either side or both sides of the copying paper is equipped with water jets 85 arranged on both sides of the copying paper and having a reservoir for storing liquid, and a pair of pressure rolls 81 and 82 having nearly cylindrical outer surfaces; and the pressure rolls 81 and 82 are aligned along their axes so as to fix a nip between the cylindrical outer surfaces. The device is also equipped with a controller 90 controlling the moisture applied from the water jet 85 to the selected part of the passing paper before the paper enters the nip formed between the cylindrical outer surfaces.
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公开(公告)号：JPH1120971A
公开(公告)日：1999-01-26
申请号：JP17010398
申请日：1998-06-17
Applicant: XEROX CORP
Inventor： ANDERSON DAVID G , LOONEY JOHN H , ACQUAVIVA THOMAS , CRUZ RANDOLPH
Abstract: PROBLEM TO BE SOLVED: To provide a paper sheet transfer device capable of easily eliminating paper jamming in a nip by applying a necessary vertical force to paper sheets to be fed and releasing the same. SOLUTION: A belt contact ball transfer device includes a magnet ball 77 arranged in the upper surface side of an endless belt 71 and an electromagnet 79 arranged in the backside of the endless belt 71. The magnet ball 77 forms a nip together with the endless belt 71. By supplying a current to the electromagnet 79, the magnet ball 77 is contacted with the endless belt 71 and a vertical force is applied to or released from a fed paper sheet 110. At the time of releasing the vertical force, the paper sheet 110 is easily removed from the nip.
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