US 10,889,110 B2
Method and apparatus for droplet deposition
Nicholas Marc Jackson, Cambridge (GB); and Angus Condie, Cambridge (GB)
Assigned to XAAR TECHNOLOGY LIMITED, Cambridge (GB)
Appl. No. 16/619,605
PCT Filed Jun. 6, 2018, PCT No. PCT/GB2018/051537
§ 371(c)(1), (2) Date Dec. 5, 2019,
PCT Pub. No. WO2018/224821, PCT Pub. Date Dec. 13, 2018.
Claims priority of application No. 1709027.5 (GB), filed on Jun. 6, 2017.
Prior Publication US 2020/0130352 A1, Apr. 30, 2020
Int. Cl. B41J 2/045 (2006.01); B41J 2/14 (2006.01)
CPC B41J 2/04581 (2013.01) [B41J 2/04588 (2013.01); B41J 2/04541 (2013.01); B41J 2/04596 (2013.01); B41J 2/14209 (2013.01); B41J 2002/14491 (2013.01); B41J 2202/11 (2013.01)] 20 Claims
OG exemplary drawing
1. A method for depositing droplets onto a medium utilizing a droplet deposition apparatus, the method comprising:
receiving, at the droplet deposition apparatus, input data for releasing droplets, the droplet deposition apparatus comprising an array of fluid chambers separated by interspersed walls, each fluid chamber communicating with an aperture for the release of droplets of fluid and each of the walls separating two neighboring chambers;
assigning, based on the input data, each of the chambers within the array as either firing chambers or non-firing chambers so as to produce bands of one or more contiguous firing chambers separated by bands of one or more contiguous non-firing chambers; and
actuating the walls of at least a subset of the chambers such that:
for at least one non-firing chamber, one wall is stationary while the other is moved; and
for each firing chamber the walls move with opposing senses, wherein:
each of the walls is actuable such that in response to a first voltage, the respective wall will deform so as to decrease the volume of a first one of the chambers and increase the volume of a second one of the chambers, and in response to a second voltage, the respective wall will deform so as to cause an opposite effect on the volumes of the first and the second chambers; and
the resulting droplets forming bodies of fluid disposed on a line on the medium, the bodies of fluid being separated on the line by respective gaps for each of the bands of non-firing chambers, a size of each gap corresponding in size to the respective band of non-firing chambers.