Title:
印刷画像におけるＭＮ（ミッシングノズル）検出
Document Type and Number:
Japanese Patent JP7412185
Kind Code:
B2
Abstract:
A method for determining print defects in a printing operation carried out on an inkjet printing machine for processing a print job includes using a camera system to record and digitize printed products generated during the printing operation, feeding the camera image having been thus generated to a detection algorithm on the computer, alerting a machine control unit when print defects are found, and ejecting the printed product through a waste ejector if necessary. The detection algorithm separates color separations of the camera images, detects the print defects in the color separations, links images of the individual color separations to form a candidate image, filters the candidate image, enters the remaining detected print defects into a list, and forwards the list to the machine control unit of the printing machine.
Inventors:
Jan Krieger
Frank schuman
Frank schuman
Application Number:
JP2020002847A
Publication Date:
January 12, 2024
Filing Date:
January 10, 2020
Export Citation:
Assignee:
Heidelberger Druckmaschinen AG
International Classes:
B41J2/01
Domestic Patent References:
| JP2012086565A | ||||
| JP2010228226A |
Foreign References:
| US20120056928 |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Taku Morita
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima class
Taku Morita
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima class