公开(公告)号：US09561671B1

公开(公告)日：2017-02-07

申请号：US15180208

申请日：2016-06-13

Applicant: XEROX CORPORATION

Inventor： Douglas K Herrmann ,  Jason M Lefevre ,  Derek A Bryl ,  Linn C Hoover

IPC: B41J11/00 ,  B65H5/22 ,  B65H29/24 ,  B41J2/01 ,  B41J13/22

CPC classification number: B65H29/243 ,  B41J2/01 ,  B41J13/226 ,  B65H5/222 ,  B65H5/226 ,  B65H2406/33 ,  B65H2406/362

Abstract: A media transport system provides full vacuum under media as the media traverses an entire print path of an ink jet printer while simultaneously providing for a no-vacuum inter-copy gap that moves along with the media past print heads of the ink jet printer. This is accomplished with a dual vacuum inner/outer vacuum drum system that includes a first drum that has a matrix of holes that allows for full coverage of vacuum with a second underlying drum that is shifted to align a second set of holes to match the sheet pitch. By shifting the second drum in relation to the first drum, a combination set of holes is aligned to provide full vacuum across the media while a column of holes is blocked to provide a non-vacuum inter-copy gap.

Abstract translation: 当介质穿过喷墨打印机的整个打印路径时，介质传送系统在介质下提供完全真空，同时提供与介质一起沿着喷墨打印机的打印头移动的无真空复印间隙。 这是通过双重真空内/外真空鼓系统实现的，该双真空内/外真空鼓系统包括具有孔矩阵的第一鼓，所述第一鼓允许用第二下面的鼓全面覆盖真空，该第二底鼓被移动以对准第二组孔以匹配片 沥青。 通过相对于第一滚筒移动第二滚筒，对齐一组组合的孔，以便跨过介质提供全真空，同时一列孔被阻挡以提供非真空的间隙间隙。

公开(公告)号：US09440814B1

公开(公告)日：2016-09-13

申请号：US14969009

申请日：2015-12-15

Applicant: XEROX CORPORATION

Inventor： Jason M Lefevre ,  Michael J Levy ,  David A Vankouwenberg

IPC: B65H29/70 ,  B41J3/60 ,  G03G15/00

CPC classification number: B65H29/70 ,  B41J3/60 ,  B41J11/0005 ,  B65H2301/51256 ,  B65H2403/514 ,  B65H2511/224 ,  B65H2557/65 ,  B65H2601/12 ,  B65H2601/254 ,  G03G15/6576 ,  B65H2220/02 ,  B65H2220/11

Abstract: A decurler method and apparatus that compensates for ink contamination buildup on an indent roll of a decurler in aqueous ink jet products that can lead to paper wrinkle. A gap between the centers of the indent roll and a soft roll is increased to prevent sheet wrinkle by employing an algorithm that determines when the rolls are in contact and are first matching speed with each other and then treats this position as a home position.

Abstract translation: 一种去卷曲器方法和装置，其补偿在能够导致纸张皱纹的水性喷墨产品中的折页机的压印辊上的油墨污染物积聚。 通过采用确定辊接触时间和第一匹配速度的算法，然后将该位置作为起始位置来增加压痕辊和软卷的中心之间的间隙，以防止纸张褶皱。