公开(公告)号：US20240173972A1

公开(公告)日：2024-05-30

申请号：US18059643

申请日：2022-11-29

Applicant: XEROX CORPORATION

Inventor： Peter KNAUSDORF ,  Sakib ZARGAR ,  Joseph C. SHEFLIN ,  Palghat S. RAMESH ,  Collin Alexander LADD ,  Chu-Heng LIU ,  Paul J. McCONVILLE

IPC: B41J2/045 ,  G06V10/25 ,  G06V10/764 ,  G06V10/82

CPC classification number: B41J2/0456 ,  G06V10/25 ,  G06V10/764 ,  G06V10/82

Abstract: A printing system and method of inspecting drop ejection in a printing system is disclosed. The method includes capturing an image of each of a plurality of drops of a print material after ejection from an ejector of a printing system, creating a temporally averaged image from each image of the plurality of drops of print material, and classifying one of the plurality of drops of print material based on the temporally averaged image that was created. The use of a pretrained convolutional neural network for classifying one of the plurality of drops and comparing the temporally averaged image to another temporally averaged image to classify one of the plurality of drops may be employed. The printing system also includes a camera with a high-speed shutter where the shutter is synchronized to an ejector pulse, and a video analytic framework coupled to the ejector and the camera configured to generate a jetting result for each of the one or more drops of liquid print material.