公开(公告)号：US11117774B2

公开(公告)日：2021-09-14

申请号：US16391418

申请日：2019-04-23

Applicant: XEROX CORPORATION

Inventor： Rachel Lynn Tanchak ,  Erwin Ruiz ,  Carlos M Terrero ,  Roberto A Irizarry ,  Glenn Batchelor ,  Ali R Dergham

IPC: B65H29/24 ,  B65H29/58 ,  H04N1/00 ,  B65H5/22

Abstract: A system for controlling curl in sheets passing beneath a camera includes applying a thin layer of high velocity air to a curved baffle positioned beneath the camera. The high velocity air layer, which will have a tendency to follow the curved baffle (Coanda effect), will divert sheets (Bernoulli effect) towards the curved baffle. By positioning the curved baffle along the media paper path and by applying a uniform air stream to it, a lower pressure area will be created. This will flatten the trajectory of the sheets and thereby remove curl before the sheets pass the camera.

公开(公告)号：US10981742B2

公开(公告)日：2021-04-20

申请号：US16391428

申请日：2019-04-23

Applicant: XEROX CORPORATION

Inventor： Carlos M Terrero ,  Rachel Lynn Tanchak ,  Roberto A Irizarry ,  Erwin Ruiz ,  Ali R Dergham

IPC: B65H29/24 ,  B65H29/70 ,  B65H29/16 ,  H04N1/00 ,  B65H5/22

Abstract: An apparatus for controlling curl in sheets between two transports includes a curved baffle placed between the two transports. A thin layer of high velocity air is applied to the curved baffle. The high velocity air layer, which will have a tendency to follow the curved baffle (Coanda effect), will divert sheets (Bernoulli effect) towards the curved baffle. By positioning the curved baffle between the two transports and by applying a uniform air stream to it, a lower pressure area will be created. This will flatten the trajectory of the sheets and ensure acquisition by the downstream transport.

公开(公告)号：US11046544B2

公开(公告)日：2021-06-29

申请号：US16391422

申请日：2019-04-23

Applicant: XEROX CORPORATION

Inventor： Roberto A Irizarry ,  Glenn Batchelor ,  Rachel Lynn Tanchak ,  Ali R Dergham ,  Erwin Ruiz

IPC: B65H29/24 ,  B65H29/12 ,  B65H29/70 ,  B65H5/06 ,  B65H5/36 ,  B65H5/22 ,  B65H7/20

Abstract: An apparatus for controlling cross curl in corners of sheets between in-line transports includes a curved baffle placed between the two transports. A thin layer of high velocity air is applied to the curved baffle only at lead edge corner regions of the sheets. The high velocity air layer, which will have a tendency to follow the curved baffle (Coanda effect), will divert corners of the sheets (Bernoulli effect) towards the curved baffle. By positioning a curved baffle between the two transports and by applying a uniform air stream to it, a lower pressure area will be created. This will flatten the corners of the sheets and ensure passage between downstream baffles and acquisition by a downstream transport.