US 12,430,453 B2
Mitigating distortions in printed images
Igal Ben-Dayan, Moshav Kochav Michael (IL); Almog Koren, Beer Sheva (IL); Ittai Wiener, Mevaseret Zion (IL); and Yevgeny Zakharin, Petah Tikva (IL)
Assigned to Landa Corporation Ltd., Rehovot (IL)
Appl. No. 18/261,852
Filed by LANDA CORPORATION LTD., Rehovot (IL)
PCT Filed Jan. 16, 2022, PCT No. PCT/IB2022/050328
§ 371(c)(1), (2) Date Jul. 18, 2023,
PCT Pub. No. WO2022/167876, PCT Pub. Date Aug. 11, 2022.
Claims priority of provisional application 63/144,488, filed on Feb. 2, 2021.
Prior Publication US 2024/0075762 A1, Mar. 7, 2024
Int. Cl. B41J 2/005 (2006.01); B41J 2/21 (2006.01); B41J 29/38 (2006.01); G06F 3/12 (2006.01); G06F 21/60 (2013.01)
CPC G06F 21/604 (2013.01) [B41J 2/0057 (2013.01); B41J 2/21 (2013.01); B41J 29/38 (2013.01); G06F 3/1208 (2013.01); G06F 3/1229 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving a first signal indicative of a first electrical current measured on a first motion assembly for moving a flexible substrate that receives droplets of a printing fluid from an image forming station to form an image thereon;
receiving a second signal indicative of a second electrical current measured on a second motion assembly for moving the flexible substrate, wherein a section of the flexible substrate is moving between the first and second motion assemblies;
calculating, based on the first and second signals, a parameter, which is indicative of a distortion in the image; and
in response to detecting, based on the parameter, an increase in the distortion, applying a corrective action to reduce the distortion, wherein the first motion assembly comprises a first roller, and a first motor and a first gear for rotating the first roller, wherein the second motion assembly comprises a second roller, and a second motor and a second gear for rotating the second roller, and wherein applying the corrective action comprises adjusting at least one of the first and second gears in response to detecting that at least one of first and second variables exceeds a predefined threshold.