US 11,890,863 B2
Airflow control through vacuum platen of a printing system, and related devices, systems, and methods
Anthony Salvatore Condello, Webster, NY (US); Peter John Knausdorf, Henrietta, NY (US); Jack T. Lestrange, Macedon, NY (US); Palghat S. Ramesh, Pittsford, NY (US); and Joseph C. Sheflin, Macedon, NY (US)
Assigned to XEROX CORPORATION, Norwalk, CT (US)
Filed by XEROX CORPORATION, Norwalk, CT (US)
Filed on Mar. 31, 2021, as Appl. No. 17/218,849.
Prior Publication US 2022/0314651 A1, Oct. 6, 2022
Int. Cl. B41J 11/00 (2006.01); B41J 11/06 (2006.01); B65H 5/04 (2006.01); B65H 5/22 (2006.01)
CPC B41J 11/0085 (2013.01) [B41J 11/007 (2013.01); B41J 11/06 (2013.01); B65H 5/04 (2013.01); B65H 5/222 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A printing system, comprising:
an ink deposition assembly comprising a printhead arranged to eject a print fluid to a deposition region of the ink deposition assembly; and
a media transport assembly comprising:
a vacuum source,
a vacuum platen comprising platen holes fluidically coupled to corresponding platen channels, and
a movable support surface movable in a process direction,
wherein the media transport assembly is configured to hold a print medium against the movable support surface by vacuum suction communicated from the vacuum source through the platen holes and platen channels to transport the print medium through the deposition region, and
wherein at least some of the platen channels comprise a first region and a second region having a reduced open cross-sectional area relative to the first region, the second region being at a location between the first region and a platen hole fluidically coupled to the respective platen channel,
wherein the second region of a given platen channel of the at least some platen channels comprises an obstruction feature located in the given platen channel, and
wherein the obstruction feature comprises one or more of a fin array, a pin array, a mesh, a porous material, a wall with an aperture, a baffle, or any combination thereof.