US 11,919,732 B2
Leveling for a media positioning arrangement of a top feeder of a printer
Ziv Rotman, Netanya (IL); Osher Elimelech, Netanya (IL); Yaron Dekel, Netanya (IL); and Majd Nasser, Netanya (IL)
Assigned to HP SCITEX LTD., Netanya (IL)
Filed by HP SCITEX LTD., Netanya (IL)
Filed on Jan. 20, 2022, as Appl. No. 17/579,729.
Claims priority of application No. 21155939 (EP), filed on Feb. 9, 2021.
Prior Publication US 2022/0250864 A1, Aug. 11, 2022
Int. Cl. B65H 1/14 (2006.01); B65H 1/04 (2006.01); B65H 1/08 (2006.01); B65H 9/20 (2006.01); B65H 11/02 (2006.01); H04N 13/254 (2018.01)
CPC B65H 11/02 (2013.01) [B65H 1/04 (2013.01); B65H 9/20 (2013.01); H04N 13/254 (2018.05)] 15 Claims
OG exemplary drawing
 
1. A leveling system for a top feeder of a printer, the top feeder comprising a media positioning arrangement, the leveling system comprising:
a detector configured to detect reflected light and generate a three-dimensional image comprising media positioning regions corresponding to the media positioning arrangement on a top sheet of a media stack installed into the top feeder;
an actuator configured to adjust heights of different points of the bottom of the media stack; and
a controller configured to:
select, based on the three-dimensional image, adjustments to the heights for improving leveling of
at least one of the media positioning regions; and
control the actuator to implement the adjustments.