US 12,168,350 B2
Mist collecting unit, and an inkjet printing apparatus having same
Yuto Suzuki, Kyoto (JP); and Masahiro Tokuyama, Kyoto (JP)
Assigned to SCREEN HOLDINGS CO., LTD., Kyoto (JP)
Filed by SCREEN HOLDINGS CO., LTD., Kyoto (JP)
Filed on Jul. 15, 2022, as Appl. No. 17/866,197.
Claims priority of application No. 2021-155333 (JP), filed on Sep. 24, 2021.
Prior Publication US 2023/0095538 A1, Mar. 30, 2023
Int. Cl. B41J 2/165 (2006.01); B41J 2/17 (2006.01)
CPC B41J 2/1652 (2013.01) [B41J 2/1714 (2013.01); B41J 2/1721 (2013.01); B41J 2/1728 (2024.05)] 20 Claims
OG exemplary drawing
 
1. A mist collecting unit for collecting a mist of ink droplets, the mist collecting unit comprising:
a hollow introduction pipe for introducing a gas including the mist;
a mist introducing box including an open bottom, and a suction port formed adjacent one end in a longitudinal direction thereof, with the introduction pipe mounted adjacent the other end in the longitudinal direction to have an upper part opening in a ceiling plane; and
a collecting box attached to a lower part of the mist introducing box to have an open ceiling surface, a bottom spaced from a lower end of the introduction pipe, and inner side surfaces spaced from outer side surfaces of the introduction pipe,
wherein the gas is introduced from the introduction pipe into the collecting box by sucking internal atmosphere of the mist introducing box and the collecting box from the suction port, thereby capturing the mist included in the gas by inner surfaces of the collecting box,
wherein the introduction pipe elongates downward from the ceiling plane of the mist introducing box into a space formed by the mist introducing box and the collection box, and
wherein the introduction pipe has an opening downward, the opening being higher than the bottom of the collection box.