US 11,813,858 B2
Printer calibration module
Eashwer Chandra Vidhya Sagar Kollata, Fremont, CA (US); Christopher Buchner, Sunnyvale, CA (US); Alexander Sou-Kang Ko, Santa Clara, CA (US); Senn Van Ly, Antioch, CA (US); and Matthew Burton Sheffield, San Ramon, CA (US)
Assigned to Kateeva, Inc., Newark, CA (US)
Filed by Kateeva, Inc., Newark, CA (US)
Filed on Sep. 24, 2021, as Appl. No. 17/448,720.
Application 17/448,720 is a continuation of application No. 16/880,129, filed on May 21, 2020, granted, now 11,155,077.
Claims priority of provisional application 62/948,534, filed on Dec. 16, 2019.
Claims priority of provisional application 62/855,675, filed on May 31, 2019.
Prior Publication US 2022/0009223 A1, Jan. 13, 2022
Int. Cl. B41J 2/045 (2006.01)
CPC B41J 2/04505 (2013.01) [B41J 2/04586 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An inkjet printer, comprising:
a substrate support;
a calibration module disposed adjacent to the substrate support and comprising a stage member; and
a print assembly disposed across the substrate support, the print assembly comprising an imaging device positionable to face the stage member, wherein the stage member comprises a vacuum extension having a vacuum surface with a first plurality of openings, including slots, at a periphery of the vacuum surface and a second plurality of openings in a central area of the vacuum surface, wherein the total areal extent of the first plurality of openings is greater than the total areal extent of the second plurality of openings.