发明申请
US20150091995A1 VACUUM PULLDOWN OF PRINT MEDIUM IN PRINTING SYSTEM 有权
印刷系统中印刷介质的真空抽吸

VACUUM PULLDOWN OF PRINT MEDIUM IN PRINTING SYSTEM
摘要:
A method for printing on a print medium is disclosed. The method includes providing a linehead defining one or more print zones and adapted to jet liquid onto the print medium. One or more vacuum transport rollers having a porous sleeve rotatable around a non-rotating core are also provided. At least one vacuum transport roller is disposed adjacent to the second side of the movable print medium, opposite the first linehead, and aligned with a print zone. The core includes a vacuum manifold that outputs a vacuum force that operates on the print medium through the porous sleeve. The print medium is moved through the printing system and a vacuum force deflects the print medium, causing an increase in a wrap angle of the print medium around the vacuum transport roller. Liquid is jetted from the linehead onto the print medium to form a print.
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