US 12,240,243 B2
Device and method for evacuation of ink vapor
Albrecht Gerstner, Oberbergkirchen (DE); Frank Freudenberg, Rattenkirchen (DE); and Christian Kürmeier, Erding (DE)
Assigned to Canon Production Printing Holding B.V., Venlo (NL)
Appl. No. 18/248,935
Filed by Canon Production Printing Holding B.V., Venlo (NL)
PCT Filed Apr. 7, 2022, PCT No. PCT/EP2022/059322
§ 371(c)(1), (2) Date Apr. 13, 2023,
PCT Pub. No. WO2022/214619, PCT Pub. Date Oct. 13, 2022.
Claims priority of application No. 10 2021 108 768.6 (DE), filed on Apr. 8, 2021.
Prior Publication US 2023/0382118 A1, Nov. 30, 2023
Int. Cl. B41J 2/17 (2006.01)
CPC B41J 2/1714 (2013.01) 14 Claims
OG exemplary drawing
 
1. An evacuation device for evacuating ink vapor in an inkjet printing device; wherein the printing device comprises a print group for printing to a front side of a recording medium moving through the print group along a transport direction; wherein the evacuation device comprises
a mechanical barrier that is designed to form a constriction above the front side of the recording medium directed in the transport direction past the mechanical barrier, which front side has been printed to in the print group, wherein the constriction forms a tunnel for the recording medium and has an extent of less than 25 mm in the transport direction;
a blower that is designed to produce a gas flow traveling counter to the transport direction in the constriction above the printed front side of the recording medium; and
an evacuation unit that is configured to evacuate ink vapor from the printed front side of the recording medium in an evacuation region that, with respect to the transport direction, is arranged before the constriction.